NASA ECCO – Publications

This database catalogues publications of the ECCO Project and those that employ ECCO ‘s products. Click the read more buttons for full citation, abstract, links to corresponding publications, and a list of ECCO products employed. Please acknowledge the ECCO project when utilizing our products and let us know of any publications that are missing from this list. You might be interest in our “ Research Roundup ” StoryMaps for 2021 and 2020.

Sort

Author Title Year

Publications: 1547

Morrison, Adele K.; Waugh, Darryn W.; Hogg, Andrew McC.; Jones, Daniel C.; Abernathey, Ryan P. (2022). Ventilation of the Southern Ocean Pycnocline, Annual Review of Marine Science, 1 (14), 405-430, 10.1146/annurev-marine-010419-011012. Title: Ventilation of the Southern Ocean Pycnocline Type: Journal article Publication: Annual Review of Marine Science Author(s): Morrison, Adele K. ; Waugh, Darryn W. ; Hogg, Andrew McC. ; Jones, Daniel C. ; Abernathey, Ryan P. Year: 2022 Formatted Citation: Morrison, A. K., D. W. Waugh, A. M. Hogg, D. C. Jones, and R. P. Abernathey, 2022 : ventilation of the Southern Ocean Pycnocline. Annual Review of Marine Science, 14 ( 1 ), 405-430, doi:10.1146/annurev-marine-010419-011012 Abstract: Ocean ventilation is the transfer of tracers and young water from the surface down into the ocean interior. The tracers that can be transported to depth include anthropogenetic inflame and carbon paper, both of which are critical to sympathy future climate trajectories. Ventilation occurs in both high- and mid- latitude regions, but it is the southern mid latitudes that are creditworthy for the largest fraction of anthropogenetic estrus and carbon paper consumption ; such southerly Ocean ventilation is the focus of this review. southerly Ocean ventilation occurs through a chain of interconnected mechanisms, including the zonally average meridional overturning circulation, localized subduction, eddy-driven mix along isopycnals, and lateral enchant by subtropical gyres. To unravel the complex pathways of ventilation and accommodate conflict results, hera we assess the relative contribution of each of these mechanisms, emphasizing the cubic and temporally deviate nature of the ventilation of the Southern Ocean pycnocline. We conclude that Southern Ocean ventilation depends on multiple processes and that simplified frameworks that explain breathing changes through a single process are insufficient. Keywords: ECCO Products Used: LLC_hiresURL: https://www.annualreviews.org/doi/10.1146/annurev-marine-010419-011012 Other URLs:
Abernathey, Ryan; Gnanadesikan, Anand; Pradal, Marie-Aude; Sundermeyer, Miles A. (2022). Isopycnal mixing, Ocean Mixing, 215-256, 10.1016/B978-0-12-821512-8.00016-5. Title: Isopycnal desegregate Type: Book section Publication: Ocean Mixing Author(s): Abernathey, Ryan ; Gnanadesikan, Anand ; Pradal, Marie-Aude ; Sundermeyer, Miles A. Year: 2022 Formatted Citation: Abernathey, R., A. Gnanadesikan, M. Pradal, and M. A. Sundermeyer, 2022 : Isopycnal mix. Ocean Mixing, Elsevier, 215-256, doi:10.1016/B978-0-12-821512-8.00016-5 Abstract: Keywords: ECCO Products Used: LLC_hiresURL: https://linkinghub.elsevier.com/retrieve/pii/B9780128215128000165 Other URLs:
Gula, Jonathan; Taylor, John; Shcherbina, Andrey; Mahadevan, Amala (2022). Submesoscale processes and mixing, Ocean Mixing, 181-214, 10.1016/B978-0-12-821512-8.00015-3. Title: Submesoscale processes and mixing Type: Book section Publication: Ocean Mixing Author(s): Gula, Jonathan ; Taylor, John ; Shcherbina, Andrey ; Mahadevan, Amala Year: 2022 Formatted Citation: Gula, J., J. Taylor, A. Shcherbina, and A. Mahadevan, 2022 : Submesoscale processes and mixing. Ocean Mixing, Elsevier, 181-214, doi:10.1016/B978-0-12-821512-8.00015-3 Abstract: Keywords: ECCO Products Used: LLC_hiresURL: https://linkinghub.elsevier.com/retrieve/pii/B9780128215128000153 Other URLs:
Fox-Kemper, Baylor; Johnson, Leah; Qiao, Fangli (2022). Ocean near-surface layers, Ocean Mixing, 65-94, 10.1016/B978-0-12-821512-8.00011-6. Title: Ocean near-surface layers Type: Book section Publication: Ocean Mixing Author(s): Fox-Kemper, Baylor ; Johnson, Leah ; Qiao, Fangli Year: 2022 Formatted Citation: Fox-Kemper, B., L. Johnson, and F. Qiao, 2022 : ocean near-surface layers. Ocean Mixing, Elsevier, 65-94, doi:10.1016/B978-0-12-821512-8.00011-6 Abstract: Keywords: ECCO Products Used: LLC_hiresURL: https://linkinghub.elsevier.com/retrieve/pii/B9780128215128000116 Other URLs:
Team, International Altimetry (2021). Altimetry for the future: Building on 25 years of progress, 25 Years of Progress in Radar Altimetry, https://doi.org/10.1016/j.asr.2021.01.022. Title: Altimetry for the future : build on 25 years of progress Type: Book part Publication: 25 Years of Progress in Radar Altimetry Author(s): team, International Altimetry Year: 2021 Formatted Citation: team, I. A., 2021 : Altimetry for the future : construct on 25 years of build up. 25 Years of Progress in Radar Altimetry, department of the interior : hypertext transfer protocol : //doi.org/10.1016/j.asr.2021.01.022 Abstract: In 2018 we celebrated 25 years of development of radar altimetry, and the advancement achieved by this methodology in the fields of ball-shaped and coastal oceanography, hydrology, geodesy and cryospheric sciences. many symbolic major events have celebrated these developments, for example, in Venice, Italy, the 15th ( 2006 ) and 20th ( 2012 ) years of progress and more recently, in 2018, in Ponta Delgada, Portugal, 25 Years of Progress in Radar Altimetry. On this latter juncture it was decided to collect contributions of scientists, engineers and managers involved in the global altimetry community to depict the state of matter of altimetry and propose recommendations for the altimetry of the future. This newspaper summarizes contributions and recommendations that were collected and provides guidance for future mission plan, research activities, and sustainable operational radar altimetry data exploitation. Recommendations provided are fundamental for optimizing far scientific and operational advances of oceanographic observations by altimetry, including requirements for spatial and temporal role resolution of altimetric measurements, their accuracy and continuity. There are besides new challenges and new openings mentioned in the paper that are particularly crucial for observations at higher latitudes, for coastal oceanography, for cryospheric studies and for hydrology. The paper starts with a general presentation followed by a section on Earth System Science including Ocean Dynamics, Sea Level, the Coastal Ocean, Hydrology, the Cryosphere and Polar Oceans and the “ green ” Ocean, extending the frontier from biogeochemistry to marine ecology. Applications are described in a subsequent section, which covers Operational Oceanography, Weather, Hurricane Wave and Wind Forecasting, Climate expulsion. Instruments ‘ development and satellite missions ‘ evolutions are described in a one-fourth section. A fifth section covers the key observations that altimeters provide and their likely complements, from other Earth observation measurements to in situ data. section 6 identifies the data and methods and provides some accuracy and resolution requirements for the wet tropospheric correction, the orbit and other geodetic requirements, the Mean Sea Surface, Geoid and Mean Dynamic Topography, Calibration and Validation, data accuracy, data entree and manage ( including the DUACS arrangement ). section 7 brings a cross position on scales, integration, artificial news, and capacity build up ( education and coach ). department 8 reviews the programmatic issues followed by a termination. Keywords: ECCO Products Used: ECCO2URL: https://www.sciencedirect.com/science/article/pii/S0273117721000594 Other URLs:
Wang, Jie; Bai, Xuezhi; Leng, Hengling (2021). Examination of seasonal variation of the equatorial undercurrent termination in the Eastern Pacific diagnosed by ECCO2, Journal of Oceanology and Limnology, 10.1007/s00343-021-0308-6. Title: Examination of seasonal variation of the equatorial undertone ending in the Eastern Pacific diagnosed by ECCO2 Type: Journal article Publication: Journal of Oceanology and Limnology Author(s): Wang, Jie ; Bai, Xuezhi ; Leng, Hengling Year: 2021 Formatted Citation: Wang, J., X. Bai, and H. Leng, 2021 : examination of seasonal variation of the equatorial undertide termination in the Eastern Pacific diagnosed by ECCO2. Journal of Oceanology and Limnology, doi:10.1007/s00343-021-0308-6 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://link.springer.com/10.1007/s00343-021-0308-6 Other URLs:
Rossi, Federico; Branch, Andrew; Schodlok, Michael P.; Stanton, Timothy; Fenty, Ian G.; Hook, Joshua Vander; Clark, Evan B. (2021). Stochastic Guidance of Buoyancy Controlled Vehicles under Ice Shelves using Ocean Currents, 2021 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), 8657-8664, 10.1109/IROS51168.2021.9635987. Title: Stochastic Guidance of Buoyancy Controlled Vehicles under Ice Shelves using Ocean Currents Type: Conference Proceedings Publication: 2021 IEEE/RSJ International Conference on Intelligent Robots and Systems ( IROS ) Author(s): Rossi, Federico ; Branch, Andrew ; Schodlok, Michael P. ; Stanton, Timothy ; Fenty, Ian G. ; Hook, Joshua Vander ; Clark, Evan B. Year: 2021 Formatted Citation: Rossi, F., A. outgrowth, M. P. Schodlok, T. Stanton, I. G. Fenty, J. V. Hook, and E. B. Clark, 2021 : stochastic Guidance of Buoyancy Controlled Vehicles under Ice Shelves using Ocean Currents. 2021 IEEE/RSJ International Conference on Intelligent Robots and Systems ( IROS ) IEEE, 8657-8664 pp. doi:10.1109/IROS51168.2021.9635987. Abstract: Keywords: ECCO Products Used: ECCO2URL: https://ieeexplore.ieee.org/document/9635987/ Other URLs:
Pendleton, Simon; Condron, Alan; Donnelly, Jeffrey (2021). The potential of Hudson Valley glacial floods to drive abrupt climate change, Communications Earth & Environment, 1 (2), 152, 10.1038/s43247-021-00228-1. Title: The likely of Hudson Valley glacial floods to drive abrupt climate change Type: Journal article Publication: Communications Earth & Environment Author(s): Pendleton, Simon ; Condron, Alan ; Donnelly, Jeffrey Year: 2021 Formatted Citation: Pendleton, S., A. Condron, and J. Donnelly, 2021 : The potential of Hudson Valley arctic floods to drive abrupt climate exchange. Communications Earth & Environment, 2 ( 1 ), 152, doi:10.1038/s43247-021-00228-1 Abstract: The periodic input of meltwater into the ocean from a retreating Laurentide Ice Sheet is frequently hypothesized to have weakened the Atlantic meridional overturning circulation ( AMOC ) and triggered several cold periods during the last deglaciation ( 21,000 to 8,000 years before present ). hera, we use a numerical model to investigate whether the Intra-Allerød Cold Period was triggered by the drain of Glacial Lake Iroquois, ~13,300 years ago. Performing a big cortege of experiments with diverse combinations of single and consecutive, short ( 1 calendar month ) and long ( 1 year ) duration flood events, we were ineffective to find any significant weaken of the AMOC. This result suggests that although the Hudson Valley floods occurred close to the beginning of the Intra-Allerød Cold Period, they were unlikely the sole cause. Our results have implications for re-evaluating the kinship of meltwater flood events ( by and future ) to periods of climatic cool, particularly with regards to flood input localization, volume, frequency, and duration. Keywords: ECCO Products Used: ECCO2URL: https://www.nature.com/articles/s43247-021-00228-1 Other URLs:
Ashley, Kate E.; McKay, Robert; Etourneau, Johan; Jimenez-Espejo, Francisco J.; Condron, Alan; Albot, Anna; Crosta, Xavier; Riesselman, Christina; Seki, Osamu; Massé, Guillaume; Golledge, Nicholas R.; Gasson, Edward; Lowry, Daniel P.; Barrand, Nicholas E.; Johnson, Katelyn; Bertler, Nancy; Escutia, Carlota; Dunbar, Robert; Bendle, James A. (2021). Mid-Holocene Antarctic sea-ice increase driven by marine ice sheet retreat, Climate of the Past, 1 (17), 1-19, 10.5194/cp-17-1-2021. Title: Mid-Holocene Antarctic sea-ice increase driven by nautical ice sheet retreat Type: Journal article Publication: Climate of the Past Author(s): Ashley, Kate E. ; McKay, Robert ; Etourneau, Johan ; Jimenez-Espejo, Francisco J. ; Condron, Alan ; Albot, Anna ; Crosta, Xavier ; Riesselman, Christina ; Seki, Osamu ; Massé, Guillaume ; Golledge, Nicholas R. ; Gasson, Edward ; Lowry, Daniel P. ; Barrand, Nicholas E. ; Johnson, Katelyn ; Bertler, Nancy ; Escutia, Carlota ; Dunbar, Robert ; Bendle, James A. Year: 2021 Formatted Citation: Ashley, K. E. and Coauthors, 2021 : Mid-Holocene Antarctic sea-ice increase driven by marine ice sheet withdraw. Climate of the Past, 17 ( 1 ), 1-19, doi:10.5194/cp-17-1-2021 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://cp.copernicus.org/articles/17/1/2021/ Other URLs:
Xi Liang, Chengyan Liu, Lejiang Yu, Martin Losch, Lujun Zhang, Xichen Li, Fu Zhao, and Zhongxiang Tian (2021). Impact of local atmospheric intraseasonal variability on mean sea ice state in the Arctic Ocean, Journal of Climate, 1-52, 10.1175/JCLI-D-21-0376.1. Title: Impact of local atmospheric intraseasonal unevenness on beggarly sea ice rink state in the Arctic Ocean Type: Journal article Publication: Journal of Climate Author(s): Xi Liang, Chengyan Liu, Lejiang Yu, Martin Losch, Lujun Zhang, Xichen Li, Fu Zhao, and Zhongxiang Tian Year: 2021 Formatted Citation: Xi Liang, C. L., 2021 : impact of local atmospheric intraseasonal variability on average sea ice department of state in the Arctic Ocean. J. Clim., 1-52, doi:10.1175/JCLI-D-21-0376.1 Abstract: The Arctic atmosphere shows significant variability on intraseasonal timescales of 10-90 days. The intraseasonal unevenness in the Arctic ocean ice is clearly related to that in the Arctic atmosphere. It is long-familiar that the Arctic mean sea ice state of matter is governed by the local mean atmospheric state. however, the reaction of the Arctic mean sea ice state of matter to the local anesthetic atmospheric intraseasonal unevenness is ill-defined. The Arctic atmospheric intraseasonal unevenness exists in both the thermodynamic and dynamic variables. Based on a sea ice-ocean coupled simulation with a quantitative sea ice budget analysis, this study finds that : 1 ) the intraseasonal atmospheric thermodynamic unevenness tends to reduce sea frost melting through changing the down estrus magnetic field on the open water sphere in the fringy sea ice zone, and the intraseasonal atmospheric dynamic variability tends to increase ocean internal-combustion engine fade by a combination of modified air-ocean, ice-ocean estrus fluxes and sea ice contortion. 2 ) The intraseasonal atmospheric dynamic variability increases summertime sea ice concentration in the Beaufort Sea and the Greenland Sea but decreases summer sea ice concentration along the eurasian celibate in the East Siberia-Laptev-Kara Seas, resulting from the joint effects of the change air-ocean, ice-ocean heat fluxes, the ocean ice contortion, adenine well as the average ocean ice rink advection due to the changes of sea frosting roll. The large spread in ocean internal-combustion engine in the CMIP models may be partially attributed to the different model performances in representing the respect atmospheric intraseasonal variability. reliable model of atmospheric intraseasonal unevenness is an essential condition in correctly projecting future sea methamphetamine development. Keywords: ECCO Products Used: ECCO2URL: https://journals.ametsoc.org/view/journals/clim/aop/JCLI-D-21-0376.1/JCLI-D-21-0376.1.xml Other URLs:
Bingham, Frederick M.; Brodnitz, Susannah (2021). Sea surface salinity short-term variability in the tropics, Ocean Science, 5 (17), 1437-1447, 10.5194/os-17-1437-2021. Title: Sea surface salt short-run variability in the tropics Type: Journal article Publication: Ocean Science Author(s): Bingham, Frederick M. ; Brodnitz, Susannah Year: 2021 Formatted Citation: Bingham, F. M., and S. Brodnitz, 2021 : Sea surface salt short-run variability in the tropics. Ocean Science, 17 ( 5 ), 1437-1447, doi:10.5194/os-17-1437-2021 Abstract: Keywords: ECCO Products Used: LLC_hiresURL: https://os.copernicus.org/articles/17/1437/2021/ Other URLs:
Michaelovitch de Mahiques, Michel; Violante, Roberto; Franco-Fraguas, Paula; Burone, Leticia; Barbedo Rocha, Cesar; Ortega, Leonardo; Felicio dos Santos, Rosangela; Mi Kim, Bianca Sung; Lopes Figueira, Rubens Cesar; Caruso Bícego, Marcia (2021). Control of oceanic circulation on sediment distribution in the southwestern Atlantic margin (23 to 55° S), Ocean Science, 5 (17), 1213-1229, 10.5194/os-17-1213-2021. Title: Control of oceanic circulation on sediment distribution in the southwest Atlantic allowance ( 23 to 55° S ) Type: Journal article Publication: Ocean Science Author(s): Michaelovitch de Mahiques, Michel ; Violante, Roberto ; Franco-Fraguas, Paula ; Burone, Leticia ; Barbedo Rocha, Cesar ; Ortega, Leonardo ; Felicio do Santos, Rosangela ; Mi Kim, Bianca Sung ; Lopes Figueira, Rubens Cesar ; Caruso Bícego, Marcia Year: 2021 Formatted Citation: Michaelovitch de Mahiques, M. and Coauthors, 2021 : control of oceanic circulation on sediment distribution in the southwestern Atlantic allowance ( 23 to 55° S ). Ocean Science, 17 ( 5 ), 1213-1229, doi:10.5194/os-17-1213-2021 Abstract: Keywords: ECCO Products Used: LLC_hiresURL: https://os.copernicus.org/articles/17/1213/2021/ Other URLs:
Takahashi, Naoya; Richards, Kelvin J.; Schneider, Niklas; Annamalai, H.; Hsu, Wei-Ching; Nonaka, Masami (2021). Formation Mechanism of Warm SST Anomalies in 2010s Around Hawaii, Journal of Geophysical Research: Oceans, 11 (126), 10.1029/2021JC017763. Title: Formation Mechanism of Warm SST Anomalies in 2010s Around Hawaii Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Takahashi, Naoya ; Richards, Kelvin J. ; Schneider, Niklas ; Annamalai, H. ; Hsu, Wei-Ching ; Nonaka, Masami Year: 2021 Formatted Citation: Takahashi, N., K. J. Richards, N. Schneider, H. Annamalai, W. Hsu, and M. Nonaka, 2021 : geological formation Mechanism of Warm SST Anomalies in 2010s Around Hawaii. J. Geophys. Res. Ocean., 126 ( 11 ), doi:10.1029/2021JC017763 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/10.1029/2021JC017763 Other URLs:
Zhai, Yujia; Yang, Jiayan; Wan, Xiuquan; Zou, Sijia (2021). The Eastern Atlantic Basin Pathway for the Export of the North Atlantic Deep Waters, Geophysical Research Letters, 24 (48), 10.1029/2021GL095615. Title: The Eastern Atlantic Basin Pathway for the Export of the North Atlantic Deep Waters Type: Journal article Publication: Geophysical Research Letters Author(s): Zhai, Yujia ; Yang, Jiayan ; Wan, Xiuquan ; Zou, Sijia Year: 2021 Formatted Citation: Zhai, Y., J. Yang, X. Wan, and S. Zou, 2021 : The Eastern Atlantic Basin Pathway for the Export of the North Atlantic Deep Waters. Geophys. Res. Lett., 48 ( 24 ), doi:10.1029/2021GL095615 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/10.1029/2021GL095615 Other URLs:
Hu, Zifeng; Li, Lan; Zhao, Jun; Wang, Dongxiao (2021). An Objective Method with a Continuity Constraint for Improving Surface Velocity Estimates from the Geostationary Ocean Color Imager, Remote Sensing, 1 (14), 14, 10.3390/rs14010014. Title: An objective method with a Continuity Constraint for Improving Surface Velocity Estimates from the Geostationary Ocean Color Imager Type: Journal article Publication: Remote Sensing Author(s): Hu, Zifeng ; Li, Lan ; Zhao, Jun ; Wang, Dongxiao Year: 2021 Formatted Citation: Hu, Z., L. Li, J. Zhao, and D. Wang, 2021 : An aim method with a Continuity Constraint for Improving Surface Velocity Estimates from the Geostationary Ocean Color Imager. Remote Sensing, 14 ( 1 ), 14, doi:10.3390/rs14010014 Abstract: Mapping surface currents with high spatiotemporal resolution over a wide coverage is crucial for understanding ocean dynamics and consociate biogeochemical processes. The most widely used algorithm for estimating airfoil velocities from consecutive satellite observations is the maximum cross-correlation ( MCC ) method acting. however, many unrealistic vectors hush exist, despite the utilization of respective filtering techniques. In this report, an objective method has been developed through the combination of MCC and multivariate optimum interpolation ( MOI ) analysis under a continuity constraint. The MCC method acting, with and without MOI, is applied to sequences of simulated sea come on temperature ( SST ) fields with a 1/48° spatial resolution over the East China Sea continental shelf. integration of MOI into MCC reduces the average absolute differences between the model ‘s ‘actual ‘ speed and the SST-derived speed by 19 % in proportional order of magnitude and 22 % in guidance, respectively. application of the proposed method acting to Geostationary Ocean Color Imager ( GOCI ) satellite observations produces dependable agreement between derived surface velocities and the Oregon State University ( OSU ) regional tidal model outputs. Our results demonstrate that the incorporation of MOI into MCC can provide a meaning improvement in the dependability and accuracy of satellite-derived speed fields. Keywords: ECCO Products Used: LLC_hiresURL: https://www.mdpi.com/2072-4292/14/1/14 Other URLs:
Jacques, Guy; Tréguer, Paul; Mercier, Herlé (2021). Oceans: Evolving Concepts. Title: Oceans : evolve Concepts Type: Book Publication: Author(s): Jacques, Guy ; Tréguer, Paul ; Mercier, Herlé Year: 2021 Formatted Citation: Jacques, G., P. Tréguer, and H. Mercier, 2021 : Oceans : evolve Concepts. Wiley, 320 pp. doi:10.1002/9781119818038. Abstract: Since the HMS Challenger dispatch of 1872-1876, our vision of the ocean has changed completely. We immediately understand that it plays a key function in biodiversity, climate regulation, and mineral and biological resources, and as such, the ocean is a major service supplier for world. Oceans draws on data from new oceanographic and satellite tools, acquired through international interdisciplinary programs. It describes the processes that control how the ocean functions, on different spatial and temporal scales. After considering the evolution of concepts in physical, chemical and biological oceanography, the script outlines the future of a warm, acidified, less oxygenate ocean. It shows how a see of the ocean at different scales changes how we understand it. ultimately, the book presents the challenges facing the ocean in terms of the exploitation of biological and mineral resources, in the context of sustainable development and the regulation of climate change. Keywords: ECCO Products Used: ECCO2 ; LLC_hiresURL: https://www.wiley.com/en-us/Oceans:+Evolving+Concepts-p-9781789450033 Other URLs: hypertext transfer protocol : //onlinelibrary.wiley.com/doi/book/10.1002/9781119818038
Shi, Jia-Rui; Talley, Lynne D.; Xie, Shang-Ping; Peng, Qihua; Liu, Wei (2021). Ocean warming and accelerating Southern Ocean zonal flow, Nature Climate Change, 12 (11), 1090-1097, 10.1038/s41558-021-01212-5. Title: Ocean calefacient and accelerating southern Ocean zonal run Type: Journal article Publication: Nature Climate Change Author(s): Shi, Jia-Rui ; Talley, Lynne D. ; Xie, Shang-Ping ; Peng, Qihua ; Liu, Wei Year: 2021 Formatted Citation: Shi, J., L. D. Talley, S. Xie, Q. Peng, and W. Liu, 2021 : Ocean warming and accelerating southern Ocean zonal flow. nature Climate Change, 11 ( 12 ), 1090-1097, doi:10.1038/s41558-021-01212-5 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://www.nature.com/articles/s41558-021-01212-5 Other URLs:
Guimbard, Sébastien; Reul, Nicolas; Sabia, Roberto; Herlédan, Sylvain; Khoury Hanna, Ziad El; Piollé, Jean-Francois; Paul, Frédéric; Lee, Tong; Schanze, Julian J.; Bingham, Frederick M.; Le Vine, David; Vinogradova-Shiffer, Nadya; Mecklenburg, Susanne; Scipal, Klaus; Laur, Henri (2021). The Salinity Pilot-Mission Exploitation Platform (Pi-MEP): A Hub for Validation and Exploitation of Satellite Sea Surface Salinity Data, Remote Sensing, 22 (13), 4600, 10.3390/rs13224600. Title: The Salinity Pilot-Mission Exploitation Platform ( Pi-MEP ) : A Hub for Validation and Exploitation of Satellite Sea Surface Salinity Data Type: Journal article Publication: Remote Sensing Author(s): Guimbard, Sébastien ; Reul, Nicolas ; Sabia, Roberto ; Herlédan, Sylvain ; Khoury Hanna, Ziad El ; Piollé, Jean-Francois ; Paul, Frédéric ; Lee, Tong ; Schanze, Julian J. ; Bingham, Frederick M. ; Le Vine, David ; Vinogradova-Shiffer, Nadya ; Mecklenburg, Susanne ; Scipal, Klaus ; Laur, Henri Year: 2021 Formatted Citation: Guimbard, S. and Coauthors, 2021 : The Salinity Pilot-Mission Exploitation Platform ( Pi-MEP ) : A Hub for Validation and Exploitation of Satellite Sea Surface Salinity Data. Remote Sensing, 13 ( 22 ), 4600, doi:10.3390/rs13224600 Abstract: The Pilot-Mission Exploitation Platform ( Pi-MEP ) for brininess is an ESA enterprise originally meant to support and widen the consumption of Soil Moisture and Ocean Salinity ( SMOS ) mission data over the ocean. Starting in 2017, the visualize aims at setting up a computational web-based platform focusing on satellite ocean surface brininess data, supporting studies on enhanced establishment and scientific procedure over the ocean. It has been designed in close up collaboration with a consecrated skill advisory group in ordain to achieve three independent objectives : gathering all the data required to exploit satellite ocean come on salt data, systematically producing a wide range of metrics for comparing and monitoring sea open salt products ‘ quality, and providing user-friendly tools to explore, visualize and exploit both the collected products and the results of the automatize analyses. The Salinity Pi-MEP is becoming a character hub for the establishment of satellite ocean surface brininess missions by providing valuable data on satellite products ( SMOS, Aquarius, SMAP ), an extensive in situ database ( for example, Argo, thermosalinographs, moorings, drifters ) and extra thematic datasets ( precipitation, vaporization, currents, sea tied anomalies, sea surface temperature, and so forth ). Co-localized databases between satellite products and in situ datasets are systematically generated together with validation analysis reports for 30 predefined regions. The data and reports are made fully accessible through the web interface of the platform. The datasets, establishment metrics and tools ( automatic, user-driven ) of the platform are described in detail in this composition. several dedicated scienctific font studies involving satellite SSS data are besides systematically monitored by the chopine, including major river plumes, mesoscale signatures in limit currents, high latitudes, semi-enclosed seas, and the high-precipitation area of the eastern tropical Pacific. Since 2019, a partnership in the Salinity Pi-MEP project has been agreed between ESA and NASA to enlarge concentrate to encompass the entire plant of satellite salt sensors. The two agencies are now working together to widen the platform features on respective technical foul aspects, such as triple-collocation software execution, extra match-up collocation criteria and sustain exploitation of data from the SPURS campaigns. Keywords: ECCO Products Used: ECCO-V4URL: https://www.mdpi.com/2072-4292/13/22/4600 Other URLs:
Cheng, Yuan; Xia, Menglian; Qiao, Gang; Li, Yanjun; Hai, Gang; Lv, Da (2021). Calving cycle of Ninnis Glacier over the last 60 years, International Journal of Applied Earth Observation and Geoinformation (105), 102612, 10.1016/j.jag.2021.102612. Title: Calving cycle of Ninnis Glacier over the last 60 years Type: Journal article Publication: International Journal of Applied Earth Observation and Geoinformation Author(s): Cheng, Yuan ; Xia, Menglian ; Qiao, Gang ; Li, Yanjun ; Hai, Gang ; Lv, Da Year: 2021 Formatted Citation: Cheng, Y., M. Xia, G. Qiao, Y. Li, G. Hai, and D. Lv, 2021 : Calving hertz of Ninnis Glacier over the last 60 years. International Journal of Applied Earth Observation and Geoinformation, 105, 102612, doi:10.1016/j.jag.2021.102612 Abstract: Keywords: ECCO Products Used: ECCO-V4 ; GECCO2 ; SOSEURL: https://linkinghub.elsevier.com/retrieve/pii/S0303243421003196 Other URLs:
Hyun, Sangwon; Mishra, Aditya; Follett, Christopher L.; Jonsson, Bror; Kulk, Gemma; Forget, Gael; Racault, Marie-Fanny; Jackson, Thomas; Dutkiewicz, Stephanie; Müller, Christian L.; Bien, Jacob (2021). Ocean Mover’s Distance: Using Optimal Transport for Analyzing Oceanographic Data. Title: Ocean Mover ’ s Distance : Using Optimal Transport for Analyzing Oceanographic Data Type: Journal article Publication: Author(s): Hyun, Sangwon ; Mishra, Aditya ; Follett, Christopher L. ; Jonsson, Bror ; Kulk, Gemma ; Forget, Gael ; Racault, Marie-Fanny ; Jackson, Thomas ; Dutkiewicz, Stephanie ; Müller, Christian L. ; Bien, Jacob Year: 2021 Formatted Citation: Hyun, S. and Coauthors, 2021 : Ocean Mover ‘s distance : Using Optimal Transport for Analyzing Oceanographic Data., hypertext transfer protocol : //arxiv.org/abs/2111.08736 Abstract: Modern ocean datasets are large, multi-dimensional, and inherently spatiotemporal. A common oceanographic psychoanalysis undertaking is the comparison of such datasets along one or several dimensions of latitude, longitude, depth, time ampere well as across different data modalities. here, we show that the Wasserstein distance, besides known as earth mover ‘s distance, provides a promise optimum conveyance measured for quantifying differences in ocean spatiotemporal data. The Wasserstein outdistance complements normally used point-wise dispute methods such as, e.g., the root mean squared error, by quantifying deviations in terms of apparent displacements ( in distance units of space or time ) rather than magnitudes of a measure quantity. Using large-scale gridded remote control sensing and ocean simulation data of Chlorophyll concentration, a proxy for phytoplankton biomass, in the North Pacific, we show that the Wasserstein distance enables meaningful low-dimensional embeddings of marine seasonal cycles, provides oceanographically relevant summaries of Chlorophyll depth profiles and captures hitherto dominate trends in the worldly variability of Chlorophyll in a warm climate. We besides illustrate how the optimum tape drive vectors underlying the Wasserstein outdistance calculation can serve as a fresh explainable ocular help in other exploratory ocean data analysis tasks, for example, in tracking ocean province boundaries across space and fourth dimension. Keywords: ECCO Products Used: ECCO-V4URL: http://arxiv.org/abs/2111.08736 Other URLs:
Parazoo, Nicholas C.; Bowman, Kevin W.; Baier, Bianca C.; Liu, Junjie; Lee, Meemong; Kuai, Le; Shiga, Yoichi; Baker, Ian; Whelan, Mary E.; Feng, Sha; Krol, Maarten; Sweeney, Colm; Runkle, Benjamin R.; Tajfar, Elahe; Davis, Kenneth J. (2021). Covariation of Airborne Biogenic Tracers (CO2, COS, and CO) Supports Stronger Than Expected Growing Season Photosynthetic Uptake in the Southeastern US, Global Biogeochemical Cycles, 10 (35), 10.1029/2021GB006956. Title: Covariation of Airborne Biogenic Tracers ( CO2, COS, and CO ) Supports Stronger Than Expected Growing Season Photosynthetic Uptake in the Southeastern US Type: Journal article Publication: Global Biogeochemical Cycles Author(s): Parazoo, Nicholas C. ; Bowman, Kevin W. ; Baier, Bianca C. ; Liu, Junjie ; Lee, Meemong ; Kuai, Le ; Shiga, Yoichi ; Baker, Ian ; Whelan, Mary E. ; Feng, Sha ; Krol, Maarten ; Sweeney, Colm ; Runkle, Benjamin R. ; Tajfar, Elahe ; Davis, Kenneth J. Year: 2021 Formatted Citation: Parazoo, N. C. and Coauthors, 2021 : covariation of Airborne Biogenic Tracers ( CO 2, COS, and CO ) Supports Stronger Than Expected Growing Season Photosynthetic Uptake in the Southeastern US. Global Biogeochemical Cycles, 35 ( 10 ), doi:10.1029/2021GB006956 Abstract: Keywords: ECCO Products Used: LLC270URL: https://onlinelibrary.wiley.com/doi/10.1029/2021GB006956 Other URLs:
Zhou, Li; Wang, Qiang; Mu, Mu; Zhang, Kun (2021). Optimal Precursors Triggering Sudden Shifts in the Antarctic Circumpolar Current Transport Through Drake Passage, Journal of Geophysical Research: Oceans, 12 (126), 10.1029/2021JC017899. Title: Optimal Precursors Triggering Sudden Shifts in the Antarctic Circumpolar Current Transport Through Drake Passage Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Zhou, Li ; Wang, Qiang ; Mu, Mu ; Zhang, Kun Year: 2021 Formatted Citation: Zhou, L., Q. Wang, M. Mu, and K. Zhang, 2021 : optimum Precursors Triggering sudden Shifts in the Antarctic Circumpolar Current Transport Through Drake Passage. J. Geophys. Res. Ocean., 126 ( 12 ), doi:10.1029/2021JC017899 Abstract: Keywords: ECCO Products Used: ECCO-V4 ; SOSEURL: https://onlinelibrary.wiley.com/doi/10.1029/2021JC017899 Other URLs:
Liang, X.; Li, X.; Bi, H.; Losch, M.; Gao, Y.; Zhao, F.; Tian, Z.; Liu, C. (2021). A comparison of factors that led to the extreme sea ice minima in the 21st century in the Arctic Ocean, Journal of Climate, 1-56, 10.1175/JCLI-D-21-0199.1. Title: A comparison of factors that led to the extreme sea ice minimum in the twenty-first century in the Arctic Ocean Type: Journal article Publication: Journal of Climate Author(s): Liang, X. ; Li, X. ; Bi, H. ; Losch, M. ; Gao, Y. ; Zhao, F. ; Tian, Z. ; Liu, C. Year: 2021 Formatted Citation: Liang, X., X. Li, H. Bi, M. Losch, Y. Gao, F. Zhao, Z. Tian, and C. Liu, 2021 : A comparison of factors that led to the extreme point sea methamphetamine minimum in the twenty-first century in the Arctic Ocean. J. Clim., 1-56, doi:10.1175/JCLI-D-21-0199.1 Abstract: The extreme Arctic sea ice minimum in the twenty-first hundred have been attributed to multiple factors, such as anomalous atmospheric circulation, excess solar radiotherapy absorbed by clear ocean, and thinning ocean frosting in a warm world. Most likely it is the combination of these factors that drive the extreme sea frosting minimum, but it has not been quantified, how the factors rank in setting the conditions for these events. To address this question, the sea internal-combustion engine budget of an Arctic regional sea ice-ocean model forced by atmospheric reanalysis data is analyzed to assess the development of the ascertained ocean ice minimum. Results show that the frosting area difference in the years 2012, 2019, and 2007 is driven to over 60 % by the dispute in summer sea ice area loss due to air-ocean heat magnetic field over open water. other contributions are small. For the years 2012 and 2020 the situation is unlike and more complex. The air-ice heat flux causes more ocean ice sphere passing in summer 2020 than in 2012 ascribable to warmer publicize temperatures, but this difference in sea frosting area loss is compensated by dilute advective sea ice rink loss out of the Arctic Ocean chiefly caused by the relaxation of the Arctic Dipole. The difference in assailable water area in early August leads to different air-ocean hotness fluxes, which distinguishes the sea ice minimum in 2012 and 2020. Further, sensitivity experiments indicate that both the atmospheric circulation associated with the Arctic Dipole and extreme storms are substantive conditions for a fresh depleted commemorate of sea ice extent. Keywords: ECCO Products Used: ECCO2URL: https://journals.ametsoc.org/view/journals/clim/aop/JCLI-D-21-0199.1/JCLI-D-21-0199.1.xml Other URLs:
Garabato, Alberto C. Naveira; Yu, Xiaolong; Callies, Jörn; Barkan, Roy; Polzin, Kurt L.; Frajka-Williams, Eleanor E.; Buckingham, Christian E.; Griffies, Stephen M. (2021). Kinetic energy transfers between mesoscale and submesoscale motions in the open ocean’s upper layers, Journal of Physical Oceanography, 10.1175/JPO-D-21-0099.1. Title: Kinetic energy transfers between mesoscale and submesoscale motions in the open ocean ’ s amphetamine layers Type: Journal article Publication: Journal of Physical Oceanography Author(s): Garabato, Alberto C. Naveira ; Yu, Xiaolong ; Callies, Jörn ; Barkan, Roy ; Polzin, Kurt L. ; Frajka-Williams, Eleanor E. ; Buckingham, Christian E. ; Griffies, Stephen M. Year: 2021 Formatted Citation: Garabato, A., X. Yu, J. Callies, R. Barkan, K. L. Polzin, E. E. Frajka-Williams, C. E. Buckingham, and S. M. Griffies, 2021 : Kinetic department of energy transfers between mesoscale and submesoscale motions in the open ocean ‘s upper layers. Journal of Physical Oceanography, doi:10.1175/JPO-D-21-0099.1 Abstract: Mesoscale eddies contain the majority of the ocean ‘s kinetic department of energy ( KE ), but fundamental questions remain on the cross-scale KE transfers linking eddy generation and profligacy. The function of submesoscale flows represents the identify point of discussion, with contrasting views of submesoscales as either a reservoir or a dip of mesoscale KE. here, the foremost experimental appraisal of the annual cycle of the KE remove between mesoscale and submesoscale motions is performed in the upper berth layers of a distinctive open-ocean region. Although these diagnostics have marginal statistical significance and should be regarded conservatively, they are physically plausible and can provide a valuable benchmark for model evaluation. The cross-scale KE transfer exhibits two discrete stages, whereby submesoscales energize mesoscales in winter and drain mesoscales in spring. Despite this seasonal worker reversal, an inverse KE cascade operates throughout the year across much of the mesoscale range. Our results are not discrepant with late modeling investigations that place the headwaters of the inverse KE cascade at the submesoscale, and that rationalize the seasonality of mesoscale KE as an inverse cascade-mediated reaction to the generation of submesoscales in winter. however, our findings may challenge those investigations by suggesting that, in jump, a downscale KE transmit could dampen the inverse KE cascade. An exploratory appraisal of the dynamics governing mesoscale-submesoscale KE exchanges suggests that the upscale KE transfer in winter is underpinned by mixed-layer baroclinic instabilities, and that the downscale KE transplant in spring is associated with frontogenesis. current submesoscale-permitting ocean models may well understate this downscale KE transfer, due to the models ‘ muted representation of frontogenesis. Keywords: ECCO Products Used: LLC_hiresURL: https://journals.ametsoc.org/view/journals/phoc/aop/JPO-D-21-0099.1/JPO-D-21-0099.1.xml Other URLs:
Wang, Tianyu; Du, Yan; Wang, Minyang (2021). Overlooked current estimation biases arising from the Lagrangian Argo trajectory derivation method, Journal of Physical Oceanography, 10.1175/JPO-D-20-0287.1. Title: Overlooked current estimate biases arising from the Lagrangian Argo trajectory ancestry method Type: Journal article Publication: Journal of Physical Oceanography Author(s): Wang, Tianyu ; Du, Yan ; Wang, Minyang Year: 2021 Formatted Citation: Wang, T., Y. Du, and M. Wang, 2021 : Overlooked stream estimate biases arising from the Lagrangian Argo trajectory derivation method. Journal of Physical Oceanography, doi:10.1175/JPO-D-20-0287.1 Abstract: An Argo model arrangement is used to provide synthetic Lagrangian trajectories based on the Estimating the Circulation and Climate of the Ocean exemplary, Phase II ( ECCO2 ). In combination with ambient Eulerian speed at the reference point layer ( 1000 molarity ) from the model, quantitative metrics of the Lagrangian trajectory-derived velocities are computed. The resultant role indicates that the biases induced by the derivation algorithm are strongly linked with ocean dynamics. In humble latitudes, Ekman currents and vertically sheared geostrophic currents influence both the magnitude and the steering of the derivation speed vectors. The maximal shear-induced biases exist near the equator with the amplitudes reaching up to about 1.2 curium s-1. The angles of the fleece biases are pronounced in the gloomy latitude oceans, ranging from -8° to 8°. specifically, the study shows an dominate bias from the float drifting motions that chiefly occurs in the western boundary current and antarctic circumpolar current ( ACC ) regions. In these regions, a recently reported horizontal acceleration measured via Lagrangian floats is importantly associated with the solid eddy-jet interactions. The acceleration could induce an overestimate of Eulerian current speed magnitudes. For the common Argo floats with a 9-day float parking period, the derivation accelerate biases induced by speed acceleration would be angstrom boastfully as 3 centimeter s-1, approximately 12 % of the ambient speed. It might have implications to map the beggarly mid-depth ocean currents from Argo trajectories, a well as understand the dynamics of eddy-jet interactions in the ocean. Keywords: ECCO Products Used: ECCO2URL: https://journals.ametsoc.org/view/journals/phoc/aop/JPO-D-20-0287.1/JPO-D-20-0287.1.xml Other URLs:
Stewart, Andrew L.; Chi, Xiaoyang; Solodoch, Aviv; Hogg, Andrew McC. (2021). High-Frequency Fluctuations in Antarctic Bottom Water Transport Driven by Southern Ocean Winds, Geophysical Research Letters, 17 (48), 10.1029/2021GL094569. Title: High-Frequency Fluctuations in Antarctic Bottom Water Transport Driven by Southern Ocean Winds Type: Journal article Publication: Geophysical Research Letters Author(s): Stewart, Andrew L. ; Chi, Xiaoyang ; Solodoch, Aviv ; Hogg, Andrew McC. Year: 2021 Formatted Citation: Stewart, A. L., X. Chi, A. Solodoch, and A. M. Hogg, 2021 : High-Frequency Fluctuations in Antarctic Bottom Water Transport Driven by Southern Ocean Winds. Geophys. Res. Lett., 48 ( 17 ), doi:10.1029/2021GL094569 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/10.1029/2021GL094569 Other URLs:
Fok, Hok Sum; Ma, Zhongtian (2021). Characterization of far-field Mekong freshwater mass transport in the southern South China Sea using satellite gravimetry, Global and Planetary Change (207), 103686, 10.1016/j.gloplacha.2021.103686. Title: Characterization of far-field Mekong fresh water mass transport in the southerly South China Sea using satellite hydrometry Type: Journal article Publication: Global and Planetary Change Author(s): Fok, Hok Sum ; Ma, Zhongtian Year: 2021 Formatted Citation: Fok, H. S., and Z. Ma, 2021 : portrayal of far-field Mekong fresh water multitude ecstasy in the southerly South China Sea using satellite hydrometry. Global and Planetary Change, 207, 103686, doi:10.1016/j.gloplacha.2021.103686 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://linkinghub.elsevier.com/retrieve/pii/S092181812100271X Other URLs:
Munday, David R.; Zhai, Xiaoming; Harle, James; Coward, Andrew C.; Nurser, A.J. George (2021). Relative vs. absolute wind stress in a circumpolar model of the Southern Ocean, Ocean Modelling (168), 101891, 10.1016/j.ocemod.2021.101891. Title: Relative vs. absolute wind stress in a circumpolar model of the Southern Ocean Type: Journal article Publication: Ocean Modelling Author(s): Munday, David R. ; Zhai, Xiaoming ; Harle, James ; Coward, Andrew C. ; Nurser, A.J. George Year: 2021 Formatted Citation: Munday, D. R., X. Zhai, J. Harle, A. C. Coward, and A. G. Nurser, 2021 : proportional vs. absolute wind try in a circumpolar model of the Southern Ocean. Ocean Modelling, 168, 101891, doi:10.1016/j.ocemod.2021.101891 Abstract: Keywords: ECCO Products Used: ECCO-V4 ; SOSEURL: https://linkinghub.elsevier.com/retrieve/pii/S146350032100144X Other URLs:
Harvey, T. C.; Hamlington, B. D.; Frederikse, T.; Nerem, R. S.; Piecuch, C. G.; Hammond, W. C.; Blewitt, G.; Thompson, P. R.; Bekaert, D. P. S.; Landerer, F. W.; Reager, J. T.; Kopp, R. E.; Chandanpurkar, H.; Fenty, I.; Trossman, D.; Walker, J. S.; Boening, C. (2021). Ocean mass, sterodynamic effects, and vertical land motion largely explain US coast relative sea level rise, Communications Earth & Environment, 1 (2), 233, 10.1038/s43247-021-00300-w. Title: Ocean mass, sterodynamic effects, and erect country motion largely explain US seashore relative sea charge rise Type: Journal article Publication: Communications Earth & Environment Author(s): Harvey, T. C. ; Hamlington, B. D. ; Frederikse, T. ; Nerem, R. S. ; Piecuch, C. G. ; Hammond, W. C. ; Blewitt, G. ; Thompson, P. R. ; Bekaert, D. P. S. ; Landerer, F. W. ; Reager, J. T. ; Kopp, R. E. ; Chandanpurkar, H. ; Fenty, I. ; Trossman, D. ; Walker, J. S. ; Boening, C. Year: 2021 Formatted Citation: Harvey, T. C. and Coauthors, 2021 : ocean aggregate, sterodynamic effects, and upright land motion largely explain US coast relative sea level rise. Communications Earth & Environment, 2 ( 1 ), 233, doi:10.1038/s43247-021-00300-w Abstract: Regional low-lying changes are caused by respective physical processes that vary both in space and fourth dimension. As a result of these processes, big regional departures from the long-run rate of ball-shaped bastardly low-lying rise can occur. Identifying and understanding these processes at particular locations is the foremost dance step toward generating dependable projections and assisting in better decisiveness make. here we quantify to what academic degree contemporaneous ocean mass deepen, sterodynamic effects, and vertical land gesticulate determine low-lying emanation observed by tide-gauge locations around the contiguous U.S. from 1993 to 2018. We are able to explain tide gauge-observed relative low-lying trends at 47 of 55 sample locations. Locations where we can not explain note trends are potentially indicative of shortcomings in our coastal low-lying experimental network or estimates of doubt. Keywords: ECCO Products Used: ECCO-V4URL: https://www.nature.com/articles/s43247-021-00300-w Other URLs:
Kumar, Anurag; Bhatla, R. (2021). Modeling the mixed layer depth in Southern Ocean using high resolution regional coupled ocean sea ice model, Modeling Earth Systems and Environment, 10.1007/s40808-021-01321-2. Title: Modeling the mix layer depth in Southern Ocean using high resolution regional coupled ocean sea ice mannequin Type: Journal article Publication: Modeling Earth Systems and Environment Author(s): Kumar, Anurag ; Bhatla, R. Year: 2021 Formatted Citation: Kumar, A., and R. Bhatla, 2021 : Modeling the desegregate layer depth in Southern Ocean using high resolution regional coupled ocean sea ice model. Modeling earth Systems and Environment, doi:10.1007/s40808-021-01321-2 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://link.springer.com/10.1007/s40808-021-01321-2 Other URLs:
Sommeria-Klein, Guilhem; Watteaux, Romain; Ibarbalz, Federico M.; Pierella Karlusich, Juan José; Iudicone, Daniele; Bowler, Chris; Morlon, Hélène (2021). Global drivers of eukaryotic plankton biogeography in the sunlit ocean, Science, 6567 (374), 594-599, 10.1126/science.abb3717. Title: Global drivers of eukaryotic plankton biogeography in the sunlit ocean Type: Journal article Publication: science Author(s): Sommeria-Klein, Guilhem ; Watteaux, Romain ; Ibarbalz, Federico M. ; Pierella Karlusich, Juan José ; Iudicone, Daniele ; Bowler, Chris ; Morlon, Hélène Year: 2021 Formatted Citation: Sommeria-Klein, G., R. Watteaux, F. M. Ibarbalz, J. J. Pierella Karlusich, D. Iudicone, C. Bowler, and H. Morlon, 2021 : ball-shaped drivers of eukaryotic plankton biogeography in the sunlit ocean. Science, 374 ( 6567 ), 594-599, doi:10.1126/science.abb3717 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://www.science.org/doi/10.1126/science.abb3717 Other URLs:
Love, Ryan; Andres, Heather J.; Condron, Alan; Tarasov, Lev (2021). Freshwater routing in eddy-permitting simulations of the last deglacial: the impact of realistic freshwater discharge, Climate of the Past, 6 (17), 2327-2341, 10.5194/cp-17-2327-2021. Title: Freshwater routing in eddy-permitting simulations of the last deglacial : the impact of naturalistic fresh water acquit Type: Journal article Publication: Climate of the Past Author(s): Love, Ryan ; Andres, Heather J. ; Condron, Alan ; Tarasov, Lev Year: 2021 Formatted Citation: Love, R., H. J. Andres, A. Condron, and L. Tarasov, 2021 : fresh water routing in eddy-permitting simulations of the last deglacial : the impingement of realistic fresh water acquit. Climate of the Past, 17 ( 6 ), 2327-2341, doi:10.5194/cp-17-2327-2021 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://cp.copernicus.org/articles/17/2327/2021/ Other URLs:
Yassin, Houssam; Griffies, Stephen M. (2021). Seasonality in Surface Quasigeostrophic Turbulence with Variable Stratification. Title: Seasonality in Surface Quasigeostrophic Turbulence with Variable stratification Type: Journal article Publication: Author(s): Yassin, Houssam ; Griffies, Stephen M. Year: 2021 Formatted Citation: Yassin, H., and S. M. Griffies, 2021 : Seasonality in Surface Quasigeostrophic Turbulence with Variable Stratification., hypertext transfer protocol : //arxiv.org/abs/2110.04242 Abstract: Traditional surface quasigeostrophic theory assumes a vertically undifferentiated stratification. As a consequence, the theory is only valid at horizontal scales smaller than 10 kilometer ( in the mid-latitude outdoors ocean ). At larger scales, the erect structure of the ocean ‘s stratification becomes authoritative. We present a generalization of surface quasigeostrophic theory that accounts for the ocean ‘s upright stratification. We find that the seasonality of upper berth ocean stratification ( in particular, the seasonality in mixed-layer depth ) implies a seasonality in surface quasigeostrophic turbulence. deep winter mixed-layers lead to a surface quasigeostrophic turbulence with strong buoyancy gradients, vortices spanning a wide range of scales, and with large-scale song discernible. In line, shallow summer mixed-layers lead to a open quasigeostrophic turbulence that is spatially local, lacks large-scale tenor, and appears diffuse in space. The variable stratification hypothesis besides predicts a seasonal worker energizing energy spectrum. If the submesoscales ( 1-100 kilometer ) are in the forward cascade of buoyancy division, the hypothesis predicts a winter spectrum proportional to k-7/3. In contrast, the miss of scale invariance across the submesoscales in summer causes the cascade hypothesis to fail. however, simulations by and large suggest a kinetic energy spectrum that is flatter in summer than in winter. This seasonality is inverse to that found in the ocean at the submesoscales. We conclude by suggesting that submesoscale home quasigeostrophic turbulence must be seasonal as well because it besides depends on the vertical structure of the ocean stratification. Keywords: ECCO Products Used: ECCO-V4URL: http://arxiv.org/abs/2110.04242 Other URLs:
Yue Wu, Xiao-Tong Zheng, Qi-Wei Sun, Yu Zhang, Yan Du, and Lin Liu (2021). Decadal Variability of the Upper-Ocean Salinity in the Southeast Indian Ocean: Role of Local Ocean-Atmosphere Dynamics, Journal of Climate, 19 (34), 7927-7942, https://doi.org/10.1175/JCLI-D-21-0122.1. Title: Decadal Variability of the Upper-Ocean Salinity in the Southeast indian Ocean : Role of Local Ocean-Atmosphere Dynamics Type: Journal article Publication: Journal of Climate Author(s): Yue Wu, Xiao-Tong Zheng, Qi-Wei Sun, Yu Zhang, Yan Du, and Lin Liu Year: 2021 Formatted Citation: Yue Wu, X. Z., 2021 : Decadal Variability of the Upper-Ocean Salinity in the Southeast amerind Ocean : Role of Local Ocean-Atmosphere Dynamics. J. Clim., 34 ( 19 ), 7927-7942, department of the interior : hypertext transfer protocol : //doi.org/10.1175/JCLI-D-21-0122.1 Abstract: Ocean brininess plays a crucial function in the upper-ocean stratification and local marine ecosystem. This report reveals that ocean brininess presents noteworthy decadal unevenness in upper 200 megabyte over the southeast amerind Ocean ( SEIO ). previous studies linked this brininess variability with precipitation anomalies over the Indo-Pacific region modulated by the tropical Pacific decadal variability. hera we conduct a quantitative salt budget analysis and indicate that, in contrast, oceanic advection, specially the anomalous meridional advection, plays a dominant allele function in modulating the SEIO brininess on the decadal clock time plate. The anomalous meridional advection is chiefly associated with a zonal dipole blueprint of ocean level anomaly ( SLA ) in the confederacy indian Ocean ( SIO ). specifically, positive and negative SLAs in the east and west of the SIO correspond to anomalous southbound oceanic stream, which transports much fresher seawater from the affectionate pool into the SEIO and thereby decreases the local anesthetic upper-ocean salt, and vice versa. far probe reveals that the local anomalous wind stress curl associated with tropical Pacific force is responsible for generating the sea level dipole pattern via oceanic Rossby wave adaptation on decadal time scale. This report highlights that the local anesthetic ocean-atmosphere dynamic adaptation is critical for the decadal salt variability in the SEIO. Keywords: ECCO Products Used: ECCO-V4URL: https://journals.ametsoc.org/view/journals/clim/34/19/JCLI-D-21-0122.1.xml Other URLs:
Al-Shehhi, Maryam R.; Song, Hajoon; Scott, Jeffery; Marshall, John (2021). Water mass transformation and overturning circulation in the Arabian Gulf, Journal of Physical Oceanography, 10.1175/JPO-D-20-0249.1. Title: Water mass transformation and overturning circulation in the Arabian Gulf Type: Journal article Publication: Journal of Physical Oceanography Author(s): Al-Shehhi, Maryam R. ; Song, Hajoon ; Scott, Jeffery ; Marshall, John Year: 2021 Formatted Citation: Al-Shehhi, M. R., H. Song, J. Scott, and J. Marshall, 2021 : Water bulk transformation and overturning circulation in the Arabian Gulf. Journal of Physical Oceanography, doi:10.1175/JPO-D-20-0249.1 Abstract: We diagnose the ocean ‘s remainder overturning circulation of the Arabian Gulf in a high-resolution model and interpret it in terms ofwater-mass transformation processes mediated by air-sea buoyancy fluxes and inner mix. We attempt to rationalise the complex cubic flow in terms of the superposition of a zonal ( roughly along-axis ) and meridional ( cross ) overturning radiation pattern. Rates of revolutionize and the seasonal worker cycle of air-sea fluxes sustaining them are quantify and ranked in club of importance. Air-sea fluxes dominate the budget so that, at zero rate, the magnitude and sense of the overturning circulation can be inferred from air-sea fluxes, with interior mixing playing a lesser function. We find that winter latent heat fluxes dominate the water-mass transformation rate in the department of the interior waters of the Gulf leading to a diapycnal book blend directed toward higher densities. In the zonal overturn cell, fluent is drawn in from the Sea of Oman through the Strait of Hormuz, transformed and exits the Strait near the southerly and bottom boundaries. Along the southerly margin of the Gulf, dehydration plays an crucial role in the meridional overthrow pattern inducing sinking there. Keywords: ECCO Products Used: LLC_hiresURL: https://journals.ametsoc.org/view/journals/phoc/aop/JPO-D-20-0249.1/JPO-D-20-0249.1.xml Other URLs:
Menezes, Viviane V. (2021). Advective pathways and transit times of the Red Sea Overflow Water in the Arabian Sea from Lagrangian simulations, Progress in Oceanography (199), 102697, 10.1016/j.pocean.2021.102697. Title: Advective pathways and transit times of the Red Sea Overflow Water in the arab Sea from Lagrangian simulations Type: Journal article Publication: Progress in Oceanography Author(s): Menezes, Viviane V. Year: 2021 Formatted Citation: Menezes, V. V., 2021 : advective pathways and transit times of the Red Sea Overflow Water in the arabian Sea from Lagrangian simulations. progress in Oceanography, 199, 102697, doi:10.1016/j.pocean.2021.102697 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://linkinghub.elsevier.com/retrieve/pii/S0079661121001804 Other URLs:
Bingham, Frederick M.; Brodnitz, Susannah; Fournier, Severine; Ulfsax, Karly; Hayashi, Akiko; Zhang, Hong (2021). Sea Surface Salinity Subfootprint Variability from a Global High-Resolution Model, Remote Sensing, 21 (13), 4410, 10.3390/rs13214410. Title: Sea Surface Salinity Subfootprint Variability from a Global high-resolution Model Type: Journal article Publication: Remote Sensing Author(s): Bingham, Frederick M. ; Brodnitz, Susannah ; Fournier, Severine ; Ulfsax, Karly ; Hayashi, Akiko ; Zhang, Hong Year: 2021 Formatted Citation: Bingham, F. M., S. Brodnitz, S. Fournier, K. Ulfsax, A. Hayashi, and H. Zhang, 2021 : Sea Surface Salinity Subfootprint Variability from a Global High-Resolution Model. Remote Sensing, 13 ( 21 ), 4410, doi:10.3390/rs13214410 Abstract: Subfootprint unevenness ( SFV ) is unevenness at a spatial scale smaller than the footprint of a satellite, and it can not be resolved by satellite observations. It is crucial to quantify and understand, as it contributes to the erroneousness budget for satellite data. The purpose of this learn was to estimate the SFV for sea coat brininess ( SSS ) satellite observations. This was performed by using a high-resolution numeric model, a 1/48° version of the MITgcm pretense, from which one year of end product has recently become available. SFV, defined as the burden standard deviation of SSS within the satellite footprint, was computed from the model for a 2° × 2° grid of points for the one mannequin year. We salute maps of median SFV for 40 and 100 km footprint size, display histograms of its distribution for a range of footprint sizes and quantify its seasonality. At a 100 kilometer ( 40 kilometer ) footprint size, SFV has a mode of 0.06 ( 0.04 ). It is found to vary strongly by localization and season. It has larger values in western-boundary and eastern-equatorial regions, arsenic well as in a few early areas. SFV has firm variability throughout the class, with the largest values broadly being in the hang temper. We besides quantified the representation error, the degree of mismatch between random samples within a footprint and the footprint average. Our estimates of SFV and representation error can be used in understanding errors in the satellite observation of SSS. Keywords: ECCO Products Used: LLC_hiresURL: https://www.mdpi.com/2072-4292/13/21/4410 Other URLs:
Wu, Zhen; Dutkiewicz, Stephanie; Jahn, Oliver; Sher, Daniel; White, Angelicque; Follows, Michael J. (2021). Modeling Photosynthesis and Exudation in Subtropical Oceans, Global Biogeochemical Cycles, 9 (35), 10.1029/2021GB006941. Title: Modeling Photosynthesis and Exudation in Subtropical Oceans Type: Journal article Publication: Global Biogeochemical Cycles Author(s): Wu, Zhen ; Dutkiewicz, Stephanie ; Jahn, Oliver ; Sher, Daniel ; White, Angelicque ; Follows, Michael J. Year: 2021 Formatted Citation: Wu, Zhen, S. Dutkiewicz, O. Jahn, D. Sher, A. White, and M.J. Follows, 2021 : Modeling Photosynthesis and Exudation in Subtropical Oceans, Global Biogeochemical Cycles, 35 ( 9 ), department of the interior : 10.1029/2021GB006941 Abstract: Marine phytoplankton contributes closely half of the full basal production on Earth through photosynthesis. Parameterizations of algal photosynthesis normally employed in global biogeochemical simulations by and large fail to capture the observe vertical structure of primary production. here we examined the consequences of decoupling photosynthesis ( carbon obsession ) and biosynthesis ( biomass construct ) with accumulation or exudate of excess photosynthate under energy deep conditions in both regional and ball-shaped models. The results show that the decouple of these two processes improved the model upright profile of primary production, increased model basal output over 30 % globally and all over 40 % in subtropical oceans, improved simulate meridional patterns of particulate C : north : P and increased modeled surface pool of labile/semi-labile dissolved organic carbon paper. More broadly, these results highlight the importance of exudation, which results from the uncouple of photosynthesis and biosynthesis, as a major physiologic process affecting ocean biogeochemistry. Keywords: ECCO Products Used: ECCO-V3URL: https://onlinelibrary.wiley.com/doi/10.1029/2021GB006941 Other URLs:
Wickramage, C. H.; Wang, Weiqiang; Arulananthan, K.; Jayathilake, Ruchira (2021). Dynamics of counter wind current along the south Sri Lanka coast during the Southwest Monsoon, Ocean Dynamics, 10.1007/s10236-021-01477-6. Title: Dynamics of counter wind current along the south Sri Lanka slide during the Southwest monsoon Type: Journal article Publication: Ocean Dynamics Author(s): Wickramage, C. H. ; Wang, Weiqiang ; Arulananthan, K. ; Jayathilake, Ruchira Year: 2021 Formatted Citation: Wickramage, C.H., W. Wang, K. Arulananthan, and R. Jayathilake, 2021 : Dynamics of counter wind stream along the south Sri Lanka coast during the Southwest Monsoon, Ocean Dynamics, department of the interior : 10.1007/s10236-021-01477-6 Abstract: Shipboard speed profiles collected in July 2018 are used to study coastal current in the south of Sri Lanka during the summer monsoon. The observations reveal that there is a constrict ( ~50 km wide ) westward coastal current against the summer monsoon, separated the east southwest monsoon current ( SMC ) from the island of Sri Lanka. however, the climatological south Sri Lanka coastal stream ( SSLCC ) is eastward following the direction of the SMC. The deviations between the observations and climatology of the SSLCC suggest its significant interannual unevenness. The dynamics of the west SSLCC and its affect factors are therefore focused on in this study. The results indicate that two main processes are creditworthy. First, the boreal summer intraseasonal cycle ( BSISO ) plays an authoritative function in the presence of west SSLCC. The BSISO signal intensifies the wreathe persuasiveness east and confederacy of Sri Lanka, reinforces the east India coastal current ( EICC ), and bends the SMC favoring happening of the west SSLCC. Second, the upwelling Rossby wave sign propagates to Sri Lanka but stops at 82°E, which favors the Sri Lanka Dome developing. As the western flank of the SLD, the strengthened EICC flows southerly and turns to west resulting in the west SSLCC. consequently, the department of energy conversions by baroclinic and barotropic instability between mean flow and eddy are analyzed for both the westbound and eastbound SSLCC. Keywords: ECCO Products Used: ECCO2URL: https://link.springer.com/10.1007/s10236-021-01477-6 Other URLs:
Jones, Daniel C.; Ceia, Filipe R.; Murphy, Eugene; Delord, Karine; Furness, Robert W.; Verdy, Ariane; Mazloff, Matthew; Phillips, Richard A.; Sagar, Paul M.; Sallée, (2021). Untangling local and remote influences in two major petrel habitats in the oligotrophic Southern Ocean, Global Change Biology, gcb.15839, 10.1111/gcb.15839. Title: Untangling local and remote control influences in two major petrel habitats in the oligotrophic Southern Ocean Type: Journal article Publication: Global Change Biology Author(s): Jones, Daniel C. ; Ceia, Filipe R. ; Murphy, Eugene ; Delord, Karine ; Furness, Robert W. ; Verdy, Ariane ; Mazloff, Matthew ; Phillips, Richard A. ; Sagar, Paul M. ; Sallée, Year: 2021 Formatted Citation: Jones, D.C., F.R. Ceia, E. Murphy, K. Delord, R.W. Furness, A. Verdy, M. Mazloff, R.A. Phillips, P.M. Sagar, J-B. Sallée, B. Schreiber, D.R. Thompson, L.G. Torres, P.J. Underwood, H. Weimerskirch, and J.C. Xavier, 2021 : Untangling local and remote control influences in two major petrel habitats in the oligotrophic Southern Ocean, Global Change Biology, gcb.15839, department of the interior : 10.1111/gcb.15839 Abstract: Ocean circulation connects geographically discrete ecosystems across a wide-eyed crop of spatial and temporal scales via exchanges of physical and biogeochemical properties. Remote oceanographic processes can be specially crucial for ecosystems in the Southern Ocean, where the Antarctic Circumpolar Current transports properties across ocean basins through both advection and mix. recent tracking studies have indicated the universe of two large-scale, open ocean habitats in the southerly Ocean used by grey petrels ( Procellaria cinerea ) from two populations ( i.e., Kerguelen and Antipodes islands ) during their nonbreeding season for extended periods during austral summer ( i, October to February ). In this work, we use a novel combination of large-scale oceanographic observations, surface vagrant data, satellite-derived elementary productiveness, numeric adjoint sensitivity experiments, and output signal from a biogeochemical state estimate to examine local and remote control influences on these grey petrel habitats. Our aim is to understand the oceanographic features that control these isolated foraging areas and to evaluate their ecological rate as oligotrophic assailable ocean habitats. We estimate the minimum local chief productiveness required to support these populations to be much < 1 % of the calculate local elementary productivity. The area in the southeast indian Ocean used by the birds from Kerguelen is connected by circulation to the fat Kerguelen ledge. In contrast, the area in the south-central Pacific Ocean used by seabirds from the Antipodes is relatively isolate suggesting it is more charm by local factors or the accumulative effects of many seasonal worker cycles. This work exemplifies the electric potential use of predator distributions and oceanographic data to highlight areas of the open ocean that may be more dynamic and fat than previously thought. Our results highlight the indigence to consider advective connections between ecosystems in the southerly Ocean and to re-evaluate the ecological relevance of oligotrophic Southern Ocean regions from a conservation perspective. Keywords: ECCO Products Used: ECCO-V4 ; SOSE ; adjointURL: https://onlinelibrary.wiley.com/doi/10.1111/gcb.15839 Other URLs:
Rao, Devanarayana R.M.; Tandon, Neil F. (2021). Mechanism of Interannual Cross-equatorial Overturning Anomalies in the Pacific Ocean, Journal of Geophysical Research: Oceans, 10.1029/2021JC017509. Title: Mechanism of Interannual Cross-equatorial Overturning Anomalies in the Pacific Ocean Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Rao, Devanarayana R.M. ; Tandon, Neil F. Year: 2021 Formatted Citation: Rao, D.R.M., and N.F. Tandon, 2021 : mechanism of Interannual Cross-equatorial Overturning Anomalies in the Pacific Ocean, Journal of Geophysical Research : Oceans, department of the interior : 10.1029/2021JC017509 Abstract: The meridional overturn circulation ( MOC ) transports heat and multitude between the tropics and the extratropics. Recent research has shown that the variability of the Indo-Pacific MOC dominates the unevenness of the ball-shaped MOC on interannual timescales, and this unevenness is characterized by a big cross-equatorial cell ( CEC ) spanning the tropics. This CEC is a potentially significant charm on interannual climate unevenness, but the mechanism responsible for the CEC is not understand. This study seeks to elucidate the mechanism of the CEC using two experimental estimates of the ocean. Our analysis shows that the CEC can be explained by the following mechanistic chain : ( a ) Anomalies in the atmospheric circulation and hydrological cycle produce equatorially antisymmetric concentration anomalies in the upper Pacific Ocean ( above approximately 500 molarity ) ; ( b ) these concentration anomalies generate equatorially antisymmetric anomalies of sea come on altitude ( SSH ) ; ( vitamin c ) these SSH anomalies generate a cross-equatorial hang above approximately 1,000 m ; and ( five hundred ) this anomalous cross-equatorial flow drives compensating stream below approximately 1,000 m. This mechanism contrasts with that responsible for anomalous cross-equatorial overturning on seasonal timescales, which is chiefly the Ekman reaction to equatorially antisymmetric anomalies of zonal scent stress. On interannual timescales, the zonal scent stress anomalies associated with the CEC are equatorially symmetrical, and steric SSH variations are the dominant driver of the CEC. These insights may lead to improved understand and prediction of interannual climate variability. Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/10.1029/2021JC017509 Other URLs:
Nakayama, Yoshihiro; Cai, Cilan; Seroussi, Helene (2021). Impact of Subglacial Freshwater Discharge on Pine Island Ice Shelf, Geophysical Research Letters, 18 (48), 10.1029/2021GL093923. Title: Impact of Subglacial Freshwater Discharge on Pine Island Ice Shelf Type: Journal article Publication: Geophysical Research Letters Author(s): Nakayama, Yoshihiro ; Cai, Cilan ; Seroussi, Helene Year: 2021 Formatted Citation: Nakayama, Y., C. Cai, and H. Seroussi, 2021 : impact of Subglacial Freshwater Discharge on Pine Island Ice Shelf, Geophysical Research Letters, 48 ( 18 ), department of the interior : 10.1029/2021GL093923 Abstract: Satellite-based estimates of ice ledge melt rates reach ~200 m year -1 close to the grounding line of Pine Island Glacier, in West Antarctica. however, ocean simulations have not so far been able to reproduce such high melt rates, even with high-resolution models. here, we use a regional mannequin of Pine Island ice ledge cavity and study the impingement of subglacial fresh water release on simulate frosting ledge melt rates and ocean circulation in the cavity. We show that subglacial fresh water acquit substantially enhances ice shelf melting close to the ground cable, successfully simulating high gear ice shelf dissolve rates suggested by observations. The buoyant assortment of frigid meltwater overcharge rises to ~27.4 isopycnal surfaces, following topographically constrained current, and spreads into mid-depths at the frost shelf front. The character of fresh water discharge is probably to remain unaltered over the coming decades given the project evolution of runoff and rain over Pine Island basin. Keywords: ECCO Products Used: LLC270URL: https://onlinelibrary.wiley.com/doi/10.1029/2021GL093923 Other URLs:
Meng, Ze; Zhou, Lei; Murtugudde, Raghu; Yang, Qingxuan; Pujiana, Kandaga; Xi, Jingyuan (2021). Tropical oceanic intraseasonal variabilities associated with central Indian Ocean mode, Climate Dynamics, 10.1007/s00382-021-05951-1. Title: Tropical oceanic intraseasonal variabilities associated with central indian Ocean modality Type: Journal article Publication: Climate Dynamics Author(s): Meng, Ze ; Zhou, Lei ; Murtugudde, Raghu ; Yang, Qingxuan ; Pujiana, Kandaga ; Xi, Jingyuan Year: 2021 Formatted Citation: Meng, Z., L. Zhou, R. Murtugudde, Q. Yang, K. Pujiana, and J. Xi, 2021 : tropical oceanic intraseasonal variabilities associated with central indian Ocean mode, Climate Dynamics, department of the interior : 10.1007/s00382-021-05951-1 Abstract: The oceanic intraseasonal variabilities ( ISVs ) are pronounced over the tropical indian Ocean. recently, a Central indian Ocean ( CIO ) mode was proposed as an ocean-atmosphere pair mode at intraseasonal timescales. It has a close relation with northward-propagating ISVs and intraseasonal precipitation during the indian summer monsoon. In this study, the dynamics of tropical oceanic ISVs associated with the CIO manner are analyzed using reanalysis products and observations. A accomplished heat budget analysis shows that intraseasonal SST anomalies which propagate westward from the eastern to the cardinal tropical indian Ocean during the CIO mode are chiefly attributable to zonal thermal advection. Surface hotness flux is the second largest subscriber. This is distinct from the traditional tropical oceanic ISVs as a response to the Madden-Julian Oscillation ( MJO ) in the air, in which surface inflame flux is normally the prevailing part. current results along with the previously reported air dynamics during the CIO modality describe a framework for the ocean-atmosphere conjugate mood over the tropical amerind Ocean. This represents a more comprehensive examination understand of tropical ISVs and will ultimately contribute to the improvement in process understand, simulations, and forecasts of the indian summer monsoon. Keywords: ECCO Products Used: ECCO2URL: https://link.springer.com/10.1007/s00382-021-05951-1 Other URLs:
Yu, Xiaolong; Ponte, Aurélien L.; Lahaye, Noé; Caspar-Cohen, Zoé; Menemenlis, Dimitris (2021). Geostrophy assessment and momentum balance of the global oceans in a tide- and eddy-resolving model, Journal of Geophysical Research: Oceans, 10.1029/2021JC017422. Title: Geostrophy appraisal and momentum balance of the ball-shaped oceans in a tide- and eddy-resolving model Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Yu, Xiaolong ; Ponte, Aurélien L. ; Lahaye, Noé ; Caspar-Cohen, Zoé ; Menemenlis, Dimitris Year: 2021 Formatted Citation: Yu, X., A.L. Ponte, L. Aurélien, N. Lahaye, Z. Caspar-Cohen, and D. Menemenlis, 2021 : Geostrophy appraisal and momentum balance of the ball-shaped oceans in a tide- and eddy-resolving model, Journal of Geophysical Research : Oceans, department of the interior : 10.1029/2021JC017422 Abstract: The future wide-swath satellite altimeters, such as the approaching Surface Water Ocean Topography ( SWOT ) mission, will provide instantaneous 2D measurements of sea horizontal surface devour to the spatial scale of O ( 10 kilometer ) for the beginning meter. however, the validity of the geostrophic assumption for estimating come on currents from these instantaneous maps is not known a priori. In this study, we quantify the accuracy of geostrophy for the estimate of surface currents from a cognition of instantaneous sea grade using the hourly snapshots from a tide- and eddy-resolving ball-shaped numerical model. Geostrophic balance is found to be the leading-order balance in frontal regions characterized by large energizing energy, such as the western limit currents and the Antarctic Circumpolar Current. Everywhere else, geostrophic approximation ceases to be a utilitarian predictor of ocean speed, which may result in significant high-frequency contaminant of geostrophically computed velocities by fast variability ( for example, inertial and higher ). As expected, the validity of geostrophy is shown to improve at moo frequencies ( typically < 0.5 cpd ). ball-shaped estimates of the horizontal momentum budget reveal that the tropical and mid-latitude regions where geostrophic libra fails are dominated by fast variability and disruptive stress divergence terms rather than higher-order geostrophic terms. These findings indicate that the estimate of speed from geostrophy applied on SWOT instantaneous sea level maps may be challenging away from energetic areas. Keywords: ECCO Products Used: LLC_hiresURL: https://onlinelibrary.wiley.com/doi/10.1029/2021JC017422 Other URLs:
Nakayama, Yoshihiro; Menemenlis, Dimitris; Wang, Ou; Zhang, Hong; Fenty, Ian; Nguyen, An T. (2021). Development of adjoint-based ocean state estimation for the Amundsen and Bellingshausen seas and ice shelf cavities using MITgcm–ECCO (66j), Geoscientific Model Development, 8 (14), 4909-4924, 10.5194/gmd-14-4909-2021. Title: Development of adjoint-based ocean state estimate for the Amundsen and Bellingshausen seas and frosting shelf cavities using MITgcm–ECCO ( 66j ) Type: Journal article Publication: Geoscientific Model Development Author(s): Nakayama, Yoshihiro ; Menemenlis, Dimitris ; Wang, Ou ; Zhang, Hong ; Fenty, Ian ; Nguyen, An T. Year: 2021 Formatted Citation: Nakayama, Y., D. Menemenlis, O. Wang, H. Zhang, I. Fenty, and A.T. Nguyen, 2021 : Development of adjoint-based ocean state estimate for the Amundsen and Bellingshausen seas and ice ledge cavities using MITgcm–ECCO ( 66j ), Geoscientific Model Development, 14 ( 8 ), 4909-4924, department of the interior : 10.5194/gmd-14-4909-2021 Abstract: The Antarctic coastal ocean impacts sea level ascent, deep-ocean circulation, marine ecosystems, and the global carbon paper cycle. To better identify and understand these processes and their unevenness, it is necessary to combine the sparse available observations with the best-possible numeral descriptions of ocean circulation. In particular, high frost shelf melting rates in the Amundsen Sea have attracted many experimental campaigns, and we now have some limit oceanographic data that capture seasonal worker and interannual variability during the past decade. One method to combine observations with numeral models that can maximize the data extracted from the sparse observations is the adjoint method acting, a.k.a. 4D-Var ( four-dimensional variational acculturation ), as developed and implemented for global ocean state of matter estimate by the Estimating the Circulation and Climate of the Ocean ( ECCO ) stick out. here, for the first fourth dimension, we apply the adjoint-model estimate method to a regional shape of the Amundsen and Bellingshausen seas, Antarctica, including denotative theatrical performance of sub-ice-shelf cavities. We utilize observations available during 2010-2014, including ship-based and seal-tagged CTD measurements, moorings, and satellite sea-ice concentration estimates. After 20 iterations of the adjoint-method minimization algorithm, the cost affair, here defined as a summarize of the leaden model–data difference, is reduced by 65 % relative to the baseline simulation by adjusting initial conditions, atmospheric force, and vertical diffusivity. The sea-ice and ocean components of the cost function are reduced by 59 % and 70 %, respectively. major improvements include better representations of ( 1 ) winter Water ( WW ) characteristics and ( 2 ) intrusions of modify Circumpolar Deep Water ( mCDW ) towards the Pine Island Glacier. sensitivity experiments show that ~40 % and ~10 % of improvements in ocean ice and ocean state, respectively, can be attributed to the adaptation of atmosphere temperature and wind. This study is a preliminary demonstration of adjoint-method optimization with denotative representation of ice ledge cavity circulation. Despite the 65 % price reduction, substantial model–data discrepancies remain, in particular with annual and interannual unevenness observed by moorings in front of the Pine Island Ice Shelf. We list a series of possible causes for these residuals, including limitations of the model, the optimization methodology, and experimental sample. In particular, we hypothesize that residuals could be far reduced if the model could more accurately exemplify sea-ice concentration and coastal polynya. Keywords: ECCO Products Used: LLC270URL: https://gmd.copernicus.org/articles/14/4909/2021/ Other URLs:
Bingham, Frederick M.; Fournier, Severine; Brodnitz, Susannah; Ulfsax, Karly; Zhang, Hong (2021). Matchup Characteristics of Sea Surface Salinity Using a High-Resolution Ocean Model, Remote Sensing, 15 (13), 2995, 10.3390/rs13152995. Title: Matchup Characteristics of Sea Surface Salinity Using a high-resolution Ocean Model Type: Journal article Publication: Remote Sensing Author(s): Bingham, Frederick M. ; Fournier, Severine ; Brodnitz, Susannah ; Ulfsax, Karly ; Zhang, Hong Year: 2021 Formatted Citation: Bingham, F.M., S. Fournier, S. Brodnitz, K. Ulfsax, and H. Zhang, 2021 : Matchup Characteristics of Sea Surface Salinity Using a high-resolution Ocean Model, Remote Sensing, 13 ( 15 ), 2995, department of the interior : 10.3390/rs13152995 Abstract: Sea surface brininess ( SSS ) satellite measurements are validated using in situ observations normally made by surfacing Argo floats. validation statistics are computed using match values of SSS from satellites and floats. This survey explores how the match-up summons is done using a high-resolution numerical ocean model, the MITgcm. One year of model output is sampled as if the Aquarius and Soil Moisture Active Passive ( SMAP ) satellites flee over it and Argo floats popped up into it. statistical measures of mismatch between satellite and float are computed, RMS difference ( RMSD ) and bias. The bias is little, less than 0.002 in absolute value, but damaging with float values being greater than satellites. RMSD is computed using an “ all brininess dispute ” method that averages level 2 satellite observations within a given time and distance window for comparison with Argo floats. RMSD values range from 0.08 to 0.18 depending on the space–time window and the satellite. This range gives an estimate of the representation erroneousness built-in in comparing single compass point Argo floats to area-average satellite values. The cogitation has implications for future SSS satellite missions and the necessitate to specify how errors are computed to gauge the sum accuracy of recover SSS values. Keywords: ECCO Products Used: LLC_hiresURL: https://www.mdpi.com/2072-4292/13/15/2995 Other URLs:
Di, Jiankai; Ma, Chunyong; Chen, Ge (2021). Parallel-Dynamic Interpolation Algorithm of Sea Surface Height for Future 2D Altimetry Mapping of Sea Surface Height, Journal of Ocean University of China, 5 (20), 1121-1135, 10.1007/s11802-021-4664-9. Title: Parallel-Dynamic Interpolation Algorithm of Sea Surface Height for Future 2D Altimetry Mapping of Sea Surface Height Type: Journal article Publication: Journal of Ocean University of China Author(s): Di, Jiankai ; Ma, Chunyong ; Chen, Ge Year: 2021 Formatted Citation: Di, J., C. Ma, and G. Chen, 2021 : Parallel-Dynamic Interpolation Algorithm of Sea Surface Height for Future 2D Altimetry Mapping of Sea Surface Height, Journal of Ocean University of China, 20 ( 5 ), 1121-1135, department of the interior : 10.1007/s11802-021-4664-9 Abstract: The ocean surface height data book of the future wide-swath two-dimensional ( 2D ) altimetric satellite is thousands of times greater than that of nadir altimetric satellites. The fourth dimension complexity of the 2D altimetry mapping reaches O ( n3 ). It is challenging to map the global grid products of future 2D altimetric satellites. In this learn, to improve the efficiency of global data map, a new algorithm called parallel-dynamic interpolation ( PA-DI ) was designed. Through the use of 2D data cleavage and close-grained data mosaic methods, the analogue along-track DI processes were accelerated, and a fast and efficient spatial-temporal high-resolution and low-error enhanced mapping method was obtained. As determined from a comparison of the single-threaded DI with the PA-DI, the new algorithm optimized the time complexity from O ( n3 ) to O ( n3/KL ), which improved the function efficiency and achieved the expected results. According to the test results of the observing system simulation experiments, the PA-DI algorithm may provide an efficient and reliable method acting for future wide-swath 2D altimetric satellite map. Keywords: ECCO Products Used: LLC_hiresURL: https://link.springer.com/10.1007/s11802-021-4664-9 Other URLs:
Chi, Jianwei; Qu, Tangdong; Du, Yan; Qi, Jifeng; Shi, Ping (2021). Ocean salinity indices of interannual modes in the tropical Pacific, Climate Dynamics, 10.1007/s00382-021-05911-9. Title: Ocean salt indices of interannual modes in the tropical Pacific Type: Journal article Publication: Climate Dynamics Author(s): Chi, Jianwei ; Qu, Tangdong ; Du, Yan ; Qi, Jifeng ; Shi, Ping Year: 2021 Formatted Citation: Chi, J., T. Qu, Y. Du, J. Qi, and P. Shi, 2021 : Ocean brininess indices of interannual modes in the tropical Pacific, Climate Dynamics, department of the interior : 10.1007/s00382-021-05911-9 Abstract: This study investigates the interannual modes of the tropical Pacific using salt from observations, ocean reanalysis output signal and CMIP6 products. here we propose two indices of sea surface salt ( SSS ), a monopole mode and a dipole mode, to identify the El Niño—South Oscillation ( ENSO ) and its diverseness, respectively. The monopole mode is chiefly controlled by atmospheric coerce, namely, the enhance haste that induces negative SSS anomalies across about the entire tropical Pacific. The dipole manner is chiefly forced by oceanic dynamics, with zonal stream transporting clean body of water from the western clean pond into the western-central and salty water from the subtropics into the eastern tropical Pacific. Under a ball-shaped heating condition, an increase in the monopole and dipole mood variability indicates an addition in both the cardinal and eastern Pacific El Niño unevenness. The increase in central Pacific El Niño variability is largely due to enhanced vertical stratification during global thaw in the upper berth layer, with intensified zonal advection. An easterly Pacific El Niño-like warming blueprint contributes to the addition in eastern Pacific El Niño, with enhance precipitation over the central-eastern tropical Pacific. Keywords: ECCO Products Used: ECCO-KFSURL: https://link.springer.com/10.1007/s00382-021-05911-9 Other URLs:
Fukumori, Ichiro; Wang, Ou; Fenty, Ian (2021). Causal Mechanisms of Sea-level and Freshwater Content Change in the Beaufort Sea, Journal of Physical Oceanography, 10.1175/JPO-D-21-0069.1. Title: Causal Mechanisms of Sea-level and Freshwater Content Change in the Beaufort Sea Type: Journal article Publication: Journal of Physical Oceanography Author(s): Fukumori, Ichiro ; Wang, Ou ; Fenty, Ian Year: 2021 Formatted Citation: Fukumori, I., O. Wang, and I. Fenty, 2021 : Causal Mechanisms of Sea-level and Freshwater Content Change in the Beaufort Sea, Journal of Physical Oceanography, department of the interior : 10.1175/JPO-D-21-0069.1 Abstract: In the Arctic ‘s Beaufort Sea, the pace of low-lying surface over the last two decades has been an order of order of magnitude greater than that of its ball-shaped mean. This rapid regional low-lying ascent is chiefly a halosteric change, reflecting an increase in Beaufort Sea ’ s freshwater contentedness comparable to that associated with the Great Salinity Anomaly of the 1970s in the North Atlantic Ocean. here we provide a new perspective of these Beaufort Sea variations by quantifying their causal mechanisms from 1992 to 2017 using a global, data-constrained ocean and sea-ice estimate of the Estimating the Circulation and Climate of the Ocean ( ECCO ) consortium. Our analysis reveals wind and sea-ice jointly driving the variations. seasonal worker variation chiefly reflects near-surface change due to annual mellow and freeze of sea-ice, while interannual change extends deeper and by and large relates to wind-driven Ekman transport. Increasing wind stress and sea-ice fade are, however, evenly authoritative for decadal change that dominates the overall pas seul. Strengthening anticyclonic wind try surrounding the Beaufort Sea intensifies the ocean ’ s lateral Ekman convergence of relatively fresh near-surface waters. The strengthening try besides enhances convergence of sea-ice and ocean heat that increase the sum of Beaufort Sea ’ south net sea-ice thaw. The enhanced meaning at longer time-scales of sea-ice melt relative to direct wind coerce can be attributed to ocean ’ mho advection and mix of melt-water being slower than its active adjustment to mechanical perturbations. The adjustments ’ deviation implies that the sea-ice-melt-driven diabatic change will persist longer than the direct wind-driven kinematic anomaly. Keywords: ECCO Products Used: ECCO-V4 ; adjointURL: https://journals.ametsoc.org/view/journals/phoc/aop/JPO-D-21-0069.1/JPO-D-21-0069.1.xml Other URLs:
Solomon, Amy; Heuzé, Céline; Rabe, Benjamin; Bacon, Sheldon; Bertino, Laurent; Heimbach, Patrick; Inoue, Jun; Iovino, Doroteaciro; Mottram, Ruth; Zhang, Xiangdong; Aksenov, Yevgeny; McAdam, Ronan; Nguyen, An; Raj, Roshin P.; Tang, Han (2021). Freshwater in the Arctic Ocean 2010-2019, Ocean Science, 4 (17), 1081-1102, 10.5194/os-17-1081-2021. Title: Freshwater in the Arctic Ocean 2010-2019 Type: Journal article Publication: Ocean Science Author(s): Solomon, Amy ; Heuzé, Céline ; Rabe, Benjamin ; Bacon, Sheldon ; Bertino, Laurent ; Heimbach, Patrick ; Inoue, Jun ; Iovino, Doroteaciro ; Mottram, Ruth ; Zhang, Xiangdong ; Aksenov, Yevgeny ; McAdam, Ronan ; Nguyen, An ; Raj, Roshin P. ; Tang, Han Year: 2021 Formatted Citation: Solomon, A., C. Heuzé, B. Rabe, S. Bacon, L. Bertino, P. Heimbach, J. Inoue, D. Iovino, R. Mottram, X. Zhang, Y. Aksenov, R. McAdam, A. Nguyen, R.P. Raj, and H. Tang, 2021 : fresh water in the Arctic Ocean 2010-2019, Ocean Science, 17 ( 4 ), 1081-1102, department of the interior : 10.5194/os-17-1081-2021 Abstract: The Arctic climate system is quickly transitioning into a new regimen with a decrease in the extent of ocean internal-combustion engine, enhanced mix in the ocean and atmosphere, and therefore enhanced coupling within the ocean-ice-atmosphere organization ; these physical changes are leading to ecosystem changes in the Arctic Ocean. In this recapitulation paper, we assess one of the critically important aspects of this new regimen, the variability of Arctic fresh water, which plays a fundamental character in the Arctic climate organization by impacting ocean stratification and sea frost formation or fade. Liquid and solid fresh water exports besides affect the global climate system, notably by impacting the ball-shaped ocean overturning circulation. We assess how fresh water budgets have changed relative to the 2000-2010 time period. We include discussions of processes such as poleward atmospheric moisture transport, runoff from the Greenland Ice Sheet and Arctic glaciers, the character of snow on sea ice, and vertical redistribution. notably, sea internal-combustion engine embrace has become more seasonal worker and more mobile ; the aggregate loss of the Greenland Ice Sheet increased in the 2010s ( particularly in the western, northern, and southern regions ) and imported warmly, piquant Atlantic waters have shoaled. During 2000-2010, the Arctic Oscillation and moisture transport into the Arctic are in-phase and have a positive vogue. This cyclonic atmospheric circulation design forces reduced fresh water content on the Atlantic–Eurasian side of the Arctic Ocean and fresh water gains in the Beaufort Gyre. We show that the course in Arctic fresh water subject in the 2010s has stabilized proportional to the 2000s, potentially due to an increased recompense between a refresh of the Beaufort Gyre and a decrease in fresh water in the stay of the Arctic Ocean. however, large inter-model banquet across the ocean reanalyses and doubt in the observations used in this report prevent a definitive termination about the degree of this compensation. Keywords: ECCO Products Used: ASTEURL: https://os.copernicus.org/articles/17/1081/2021/ Other URLs:
Hakuba, M. Z.; Frederikse, T.; Landerer, F. (2021). Earth’s Energy Imbalance from the ocean perspective (2005-2019), Geophysical Research Letters, 10.1029/2021GL093624. Title: Earth ’ s Energy Imbalance from the ocean position ( 2005-2019 ) Type: Journal article Publication: Geophysical Research Letters Author(s): Hakuba, M. Z. ; Frederikse, T. ; Landerer, F. Year: 2021 Formatted Citation: Hakuba, M.Z., T. Frederikse, and F. Landerer, 2021 : land ‘s Energy Imbalance from the ocean perspective ( 2005-2019 ), Geophysical Research Letters, department of the interior : 10.1029/2021GL093624 Abstract: Earth ‘s energy asymmetry ( EEI ) represents the rate of global energy accumulation in response to radiative forcings and feedbacks. Ocean hotness uptake ( OHU ) poses a vital restraint on EEI and its doubt. Considering recent geodetic observations, geophysical corrections, and modern estimates of the ocean ‘s expansion efficiency of estrus, we translate steric low-lying change, the difference of sum low-lying and ocean-mass change, into an OHU of 0.86 [ 0.62, 1.10, 5 % -95 % ] Wm-2 for the time period 2005-2019. Adding components of non-oceanic estrus uptake, we obtain an EEI of 0.94 [ 0.70, 1.19 ] Wm-2, which is at the upper end of previous assessments, but agrees within uncertainty. Interannual geodetic OHU unevenness exhibits a higher correlation with top-of-the-atmosphere web radiative magnetic field than hydrographic-only data, but has a three times larger standard deviation. The radiotherapy fluxes and the geodetic approach suggest an increase in inflame consumption since 2005, most markedly in holocene years. Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/10.1029/2021GL093624 Other URLs:
Sognnes, Eirin (2021). Refactoring of Ocean Data Processing and Visualization Software Using Scientific Workflow Modeling, The University of Bergen, 164. Title: Refactoring of Ocean Data Processing and Visualization Software Using Scientific Workflow Modeling Type: thesis Publication: The University of Bergen Author(s): Sognnes, Eirin Year: 2021 Formatted Citation: Sognnes, E., 2021 : Refactoring of Ocean Data Processing and Visualization Software Using Scientific Workflow Modeling, The University of Bergen, 164 Abstract: The Arctic Package is a MATLAB software package for modeling and visual image of acoustic propagation. It aims to improve the approachability and agreement of ocean processes and how they affect the climate. This dissertation investigates how the Arctic software can be adapted to a scientific work flow context and how the adaptation affects software timbre. Two work flow models were created, one with a textual specification implemented in Airflow and one with a graphic specification implemented in KNIME. To adapt the Arctic Package to a scientific work flow, the package was refactored and a fresh graphic drug user interface created. additionally, a DevOps pipeline was established to simplify distribution and apparatus of the workflows. The software quality for the original Arctic Package and the two work flow models was evaluated using the ISO/IEC 25010 standard. The results showed that the Airflow work flow scored best in sum for software quality, but overall software quality improved in both of the work flow based implementations compared to the original Arctic Package. Keywords: ECCO Products Used: ECCO-V4URL: https://hdl.handle.net/11250/2770404%0A Other URLs:
Swierczek, Stan (2021). Modeling Heat and Carbon in the Argentine Basin, The University of Arizona, 120. Title: Modeling Heat and Carbon in the Argentine Basin Type: thesis Publication: The University of Arizona Author(s): Swierczek, Stan Year: 2021 Formatted Citation: Swierczek, S., 2021 : Modeling Heat and Carbon in the Argentine Basin, The University of Arizona, 120 Abstract: We construct regional ocean circulation models with biogeochemistry with eddy-permitting ( 1/3 degree ) to eddy-resolving ( 1/12 degree ) resolutions to investigate inflame and carbon dynamics in the region and determine the effect of model resolution on these dynamics. Simulations of the Argentine Basin have large uncertainties associated with quantities such as air-sea exchanges of heat and carbon in current generation climate models and ocean reanalysis products. This is due to the complex topography, profound undersampling, and firm currents and mix of subpolar and subtropical water masses in the river basin. Because mix of water masses is significant here, model settlement is hypothesized to play an crucial role in estimating ocean quantities and determining overall budgets. The follow through models are evaluated for fidelity by comparing output to a variety show of experimental datasets and reanalysis products. We then quantify the effect of resolving power on model upper berth ocean heat and carbon paper transport and the consociate air-sea exchanges and determine that higher resoluteness models have increased upward heat transport and surface estrus fluxes, but no significant effect is observed for carbon paper. then, the bode horizon for ocean surface quantities of temperature and carbon paper is probed by using these same regional models at two resolutions and designing a series of wind stress perturbation experiments. We calculate the responses of the coat temperature and dissolved inorganic carbon and estimate the calculate capability of each settlement. We show that responses in the 1/12 degree model are approximately analogue and disintegrate for 1-2 weeks. For the 1/3 degree exemplar this increases to 4-6 weeks, but it is entirely consistent with the 1/12 degree prognosis for about one week which shows the atrophied potential predictive skill of the coarse model. Keywords: ECCO Products Used: ECCO-V4 ; SOSEURL: https://repository.arizona.edu/handle/10150/661281 Other URLs:
Dimitris Menemenlis; Horace G Mitchell; Christopher N Hill; Borner, Katy (2021). Perpetually Moving Ocean, MIT Press, 126. Title: perpetually Moving Ocean Type: Book section Publication: MIT Press Author(s): Dimitris Menemenlis ; Horace G Mitchell ; Christopher N Hill ; Borner, Katy Year: 2021 Formatted Citation: Menemenlis, D., H.G. Mitchell, C.N. Hill, and K. Borner, 2021 : perpetually Moving Ocean, Atlas of Forecasts : Modeling and Mapping Desirable Futures, MIT Press, 126, isbn : 9780262045957 Abstract: NASA Views Our Perpetually Moving Ocean By Dimitris Menemenlis, Horace G. Mitchell, Christopher N. Hill, and Gregory W. Shirah Greenvelt, Maryland, 2011. courtesy of the Scientific Visualization Studio at NASA ‘s Goddard Space Flight Center. This scientific visual image is the solution of a collaboration between MIT and NASA ‘s Jet Propulsion Laboratory. Using advanced numerical tools, experimental data from ECCO ( Estimating the Circulation and Climate of the Ocean ) is combined with the MIT numerical ocean model to obtain realistic descriptions of how ocean circulation evolves over time. These circulation estimates, made possible by NASA Advanced Supercomputing resources at the Ames Research Center, are among the largest computations of their kind ever undertaken. They are used to quantify the ocean ‘s role in the global carbon cycle ; to understand the holocene evolution of the diametric oceans ; to monitor time-evolving heat, water. Keywords: ECCO Products Used: ECCO2URL: https://mitpress.mit.edu/books/atlas-forecasts Other URLs:
Nakayama, Yoshihiro; Greene, Chad A.; Paolo, Fernando S.; Mensah, Vigan; Zhang, Hong; Kashiwase, Haruhiko; Simizu, Daisuke; Greenbaum, Jamin S.; Blankenship, Donald D.; Abe-Ouchi, Ayako; Aoki, Shigeru (2021). Antarctic Slope Current modulates ocean heat intrusions towards Totten Glacier, Geophysical Research Letters, 10.1029/2021GL094149. Title: Antarctic Slope Current modulates ocean heat intrusions towards Totten Glacier Type: Journal article Publication: Geophysical Research Letters Author(s): Nakayama, Yoshihiro ; Greene, Chad A. ; Paolo, Fernando S. ; Mensah, Vigan ; Zhang, Hong ; Kashiwase, Haruhiko ; Simizu, Daisuke ; Greenbaum, Jamin S. ; Blankenship, Donald D. ; Abe-Ouchi, Ayako ; Aoki, Shigeru Year: 2021 Formatted Citation: Nakayama, Y., C.A. Greene, F.S. Paolo, V. Mensah, H. Zhang, H. Kashiwase, D. Simizu, J.S. Greenbaum, D.D. Blankenship, A. Abe-Ouchi, and S. Aoki, 2021 : south-polar Slope Current modulates ocean heat intrusions towards Totten Glacier, Geophysical Research Letters, department of the interior : 10.1029/2021GL094149 Abstract: Keywords: ECCO Products Used: LLC270URL: https://onlinelibrary.wiley.com/doi/10.1029/2021GL094149 Other URLs:
Pelle, Tyler; Morlighem, Mathieu; Nakayama, Yoshihiro; Seroussi, Helene (2021). Widespread grounding line retreat of Totten Glacier, East Antarctica, over the 21st century, Geophysical Research Letters, 10.1029/2021GL093213. Title: Widespread ground course retreat of Totten Glacier, East Antarctica, over the twenty-first century Type: Journal article Publication: Geophysical Research Letters Author(s): Pelle, Tyler ; Morlighem, Mathieu ; Nakayama, Yoshihiro ; Seroussi, Helene Year: 2021 Formatted Citation: Pelle, T., M. Morlighem, Y. Nakayama, and H. Seroussi, 2021 : widespread grounding line retreat of Totten Glacier, East Antarctica, over the twenty-first century, Geophysical Research Letters, department of the interior : 10.1029/2021GL093213 Abstract: Totten Glacier ( TG ), the primary ice discharger of East Antarctica, contains 3.85 thousand sea level originate equivalent ( SLRe ) ice bulk and has displayed ocean-driven dynamic transfer since at least the early 2000s. We project TG ‘s development through 2100 in an asynchronously coupled ice-ocean model, forced at the ocean boundaries with anomalies in CMIP6 project temperature, salt, and speed. consistent with former studies, the Antarctic Slope Current continues to modulate affectionate water system inflow toward TG in future simulations. quick water ( -0.5 – 1°C ) accesses TG ‘s sub-ice ledge pit through depressions along the easterly ice front, driving confirm retreat of TG ‘s easterly grounding zone that can not be captured in uncoupled models. In high emission scenarios, warm body of water overcomes topographical barriers and dislodges TG ‘s southerly grounding zone around 2070, increasing the rate of ground ice loss 3.5-fold ( 10-35 Gt/yr ) and resulting in a total 4.20 millimeter SLRe loss by 2100. Keywords: ECCO Products Used: LLC270URL: https://onlinelibrary.wiley.com/doi/10.1029/2021GL093213 Other URLs:
Sonnewald, Maike; Lguensat, Redouane (2021). Revealing the Impact of Global Heating on North Atlantic Circulation Using Transparent Machine Learning, Journal of Advances in Modeling Earth Systems, 8 (13), 10.1029/2021MS002496. Title: Revealing the impact of Global Heating on North Atlantic Circulation Using Transparent Machine Learning Type: Journal article Publication: Journal of Advances in Modeling Earth Systems Author(s): Sonnewald, Maike ; Lguensat, Redouane Year: 2021 Formatted Citation: Sonnewald, M. and R. Lguensat, 2021 : Revealing the impingement of Global Heating on North Atlantic Circulation Using Transparent Machine Learning, Journal of Advances in Modeling Earth Systems, 13 ( 8 ), department of the interior : 10.1029/2021MS002496 Abstract: The North Atlantic ocean is key to climate through its role in heat transmit and repositing. Climate models suggest that the circulation is weakening but the physical drivers of this change are ailing constrained. hera, the ancestor mechanisms are revealed with the explicitly diaphanous machine determine ( ML ) method Tracking global Heating with Ocean Regimes ( THOR ). Addressing the fundamental question of the universe of dynamic coherent regions, THOR identifies these and their connect to distinct currents and mechanisms such as the geological formation regions of deeply water masses, and the location of the Gulf Stream and North Atlantic Current. Beyond a black box approach, THOR is engineered to elucidate its source of predictive skill rooted in physical agreement. A labeled datum put is engineered using an explicitly explainable equation transform and k-means application to model data, allowing theoretical inference. A multilayer perceptron is then trained, explaining its skill using a combination of layerwise relevance propagation and theory. With abrupt CO2 quadrupling, the circulation weakens due to a shift in deep water geological formation regions, a northbound shift of the Gulf Stream and an eastbound transformation in the North Atlantic Current. If CO2 is increased 1 % annually, exchangeable but weaker patterns emerge influenced by natural unevenness. THOR is scalable and applicable to a range of models using alone the ocean astuteness, moral force sea level and wreathe stress, and could accelerate the analysis and dissemination of climate model data. THOR constitutes a footfall toward trustworthy ML called for within oceanography and beyond, as its predictions are physically tractable. Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/10.1029/2021MS002496 Other URLs:
Harker, Alexander A.; Schindelegger, Michael; Ponte, Rui M.; Salstein, David A. (2021). Modeling ocean-induced rapid Earth rotation variations: an update, Journal of Geodesy, 9 (95), 110, 10.1007/s00190-021-01555-z. Title: Modeling ocean-induced rapid Earth rotation variations : an update Type: Journal article Publication: Journal of Geodesy Author(s): Harker, Alexander A. ; Schindelegger, Michael ; Ponte, Rui M. ; Salstein, David A. Year: 2021 Formatted Citation: Harker, A.A., M. Schindelegger, R.M. Ponte, D.A. Salstein, 2021, Modeling ocean-induced rapid Earth rotation variations : an update, Journal of Geodesy, 95 ( 9 ), 110, department of the interior : 10.1007/s00190-021-01555-z Abstract: We revisit the problem of modeling the ocean ‘s contribution to rapid, non-tidal Earth rotation variations at periods of 2-120 days. Estimates of oceanic angular momentum ( OAM, 2007-2011 ) are drawn from a suite of established circulation models and fresh numeric simulations, whose finest configuration is on a 1/6° grid. We show that the OAM merchandise by the Earth System Modeling Group at GeoForschungsZentrum Potsdam has bastardly short-change period variation in its equatorial motion terms, rendering the series a poor people choice for describing oceanic signals in polar motion on time scales of less than ~2 weeks. account for OAM in rotation budgets from early models typically reduces the variation of atmosphere-corrected geodetic excitation by ~54 % for deconvolved pivotal motion and by ~60 % for length-of-day. use of OAM from the 1/6° model does provide for an extra reduction in residual variability such that the combine oceanic–atmospheric impression explains arsenic much as 84 % of the arctic motion excitation at periods < 120 days. Employing statistical analysis and bottom atmospheric pressure changes from daily Gravity Recovery and Climate Experiment solutions, we highlight the tendency of ocean models run at a 1° power system spacing to misrepresent topographically constrained dynamics in some deeply basins of the Southern Ocean, which has adverse effects on OAM estimates taken along the 90 ° meridian. Higher exemplar resolution therefore emerges as a sensible target for improving the oceanic part in broader efforts of Earth organization modeling for geodetic purposes. Keywords: ECCO Products Used: ECCO-V4URL: https://link.springer.com/10.1007/s00190-021-01555-z Other URLs:
Grabon, Jeffrey S.; Toole, John M.; Nguyen, An T.; Krishfield, Richard A. (2021). An Analysis of Atlantic Water in the Arctic Ocean Using the Arctic Subpolar Gyre State Estimate and Observations, Progress in Oceanography, 102685, 10.1016/j.pocean.2021.102685. Title: An analysis of Atlantic Water in the Arctic Ocean Using the Arctic Subpolar Gyre State Estimate and Observations Type: Journal article Publication: Progress in Oceanography Author(s): Grabon, Jeffrey S. ; Toole, John M. ; Nguyen, An T. ; Krishfield, Richard A. Year: 2021 Formatted Citation: Grabon, J.S., J.M. Toole ; A.T. Nguyen, and R.A. Krishfield, 2021 : An psychoanalysis of Atlantic Water in the Arctic Ocean Using the Arctic Subpolar Gyre State Estimate and Observations, Progress in Oceanography, 102685, department of the interior : 10.1016/j.pocean.2021.102685 Abstract: The Atlantic Water ( AW ) Layer in the Arctic Subpolar coil state Estimate Release 1 ( ASTE R1 ), a data-constrained, regional, medium-resolution coupled ocean-sea ice model, is analyzed for the time period 2004-2017 in combination with available hydrographic data. The study, focusing on AW defined as the waters between two bounding isopycnals, examines the time-average, bastardly seasonal cycle and interannual variability of AW Layer properties and circulation. A soar of AW, marked by rapid increases in base AW Layer potential temperature and AW Layer thickness, begins two years into the department of state appraisal and traverses the Arctic Ocean along limit current pathways at a travel rapidly of 1-2 cm/s. The soar besides alters AW circulation, including a reversal in flow direction along the Lomonosov Ridge, resulting in a modern quasi-steady AW circulation from 2010 through the end of the department of state calculate period. The time-mean AW circulation during this latter time time period indicates that a significant total of AW spreads over the Lomonosov Ridge rather than directly returning along the ridge to Fram Strait. A three-layer depicting of the time-averaged ASTE R1 overturning circulation within the Arctic Ocean reveals that more AW is converted to colder, fresher Surface Layer water than is transformed to Deep and Bottom Water ( 1.2 Sv vs. 0.4 Sv ). ASTE R1 besides exhibits an increase in the bulk of AW over the analyze period at a rate of 1.4 Sv, with near compensating decrease in Deep and Bottom Water volume. Observed AW properties compared to ASTE R1 output uncover increasing misfit during the simulate time period with the ASTE R1 AW Layer generally being warmer and thicker than in observations. Keywords: ECCO Products Used: ASTEURL: https://linkinghub.elsevier.com/retrieve/pii/S0079661121001695 Other URLs:
Morgan, Eric J.; Manizza, Manfredi; Keeling, Ralph F.; Resplandy, Laure; Mikaloff-Fletcher, Sara E.; Nevison, Cynthia D.; Jin, Yuming; Bent, Jonathan D.; Aumont, Olivier; Doney, Scott C.; Dunne, John P.; John, Jasmin; Lima, Ivan D.; Long, Matthew C.; Rodgers, Keith B. (2021). An Atmospheric Constraint on the Seasonal Air-Sea Exchange of Oxygen and Heat in the Extratropics, Journal of Geophysical Research: Oceans, 8 (26), 10.1029/2021JC017510. Title: An Atmospheric constraint on the Seasonal Air-Sea Exchange of Oxygen and Heat in the Extratropics Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Morgan, Eric J. ; Manizza, Manfredi ; Keeling, Ralph F. ; Resplandy, Laure ; Mikaloff-Fletcher, Sara E. ; Nevison, Cynthia D. ; Jin, Yuming ; Bent, Jonathan D. ; Aumont, Olivier ; Doney, Scott C. ; Dunne, John P. ; John, Jasmin ; Lima, Ivan D. ; Long, Matthew C. ; Rodgers, Keith B. Year: 2021 Formatted Citation: Morgan, E.J., M. Manizza, R.F. Keeling, L. Resplandy, S.E. Mikaloff-Fletcher, C.D. Nevison, Y. Jin, J.D. Bent, O. Aumont, S.C. Doney, J.P. Dunne, J. John, I.D. Lima, M.C. Long, and K.B. Rodgers, 2021 : An Atmospheric constraint on the Seasonal Air-Sea Exchange of Oxygen and Heat in the Extratropics, Journal of Geophysical Research : Oceans, 126 ( 8 ), department of the interior : 10.1029/2021JC017510 Abstract: Keywords: ECCO Products Used: ECCO-URL: https://onlinelibrary.wiley.com/doi/10.1029/2021JC017510 Other URLs:
Kowalski, Peter (2021). On the contribution of Rossby waves driven by surface buoyancy fluxes to low-frequency North Atlantic steric sea surface height variations, Cornell University. Title: On the contribution of Rossby waves driven by surface irrepressibility fluxes to low-frequency North Atlantic steric sea surface height variations Type: Journal article Publication: Cornell University Author(s): Kowalski, Peter Year: 2021 Formatted Citation: Kowalski, P., 2021 : On the contribution of Rossby waves driven by open buoyancy fluxes to low-frequency North Atlantic steric ocean come on altitude variations, Cornell University Abstract: former studies have shown that wind-forced baroclinic Rossby waves can capture a big share of low-frequency steric SSH variations in the North Atlantic. In this paper, we extend the classical wind-driven Rossby wave model derived in a 1.5 layer ocean to include surface buoyancy wedge, and then use it to assess the contribution from buoyancy-forced Rossby waves to low-frequency North Atlantic steric SSH variations. In the tropical-to-mid-latitude North Atlantic we find that wind-driven Rossby waves are dominant allele, however, in the eastern subpolar North Atlantic their contribution is roughly the same as that of buoyancy-forced Rossby waves, where together they capture up to 50 % of low-frequency steric SSH variations. Keywords: ECCO Products Used: ECCO-V4URL: https://arxiv.org/abs/2108.12666 Other URLs:
Khatri, Hemant; Griffies, Stephen M.; Uchida, Takaya; Wang, Han; Menemenlis, Dimitris (2021). Role of mixed-layer instabilities in the seasonal evolution of eddy kinetic energy spectra in a global submesoscale permitting simulation, Geophysical Research Letters, 10.1029/2021GL094777. Title: Role of mixed-layer instabilities in the seasonal development of eddy kinetic department of energy spectrum in a global submesoscale permitting model Type: Journal article Publication: Geophysical Research Letters Author(s): Khatri, Hemant ; Griffies, Stephen M. ; Uchida, Takaya ; Wang, Han ; Menemenlis, Dimitris Year: 2021 Formatted Citation: Khatri, H., S.M. Griffies, T. Uchida, H. Wang, and D. Menemenlis, 2021 : role of mixed-layer instabilities in the seasonal development of eddy energizing energy spectrum in a ball-shaped submesoscale permitting model, Geophysical Research Letters, department of the interior : 10.1029/2021GL094777 Abstract: A submesoscale-permitting global ocean pretense is used to study the upper berth ocean turbulence in senior high school kinetic energy ( KE ) regions. Submesoscale processes top out in winter so that the geostrophic KE spectrum tend to be relatively shallow in winter ( ~k-2 ) with steep spectrum in summer ( ~k-3 ). This transition in KE spectral scale has two phases. In the first gear phase ( deep fall ), KE spectra show the presence of two spectral regimes : ~k-3 power-law in mesoscales and ~k-2 power-law in submesoscales. The inaugural phase appears with the onset of mixed-layer instabilities, which convert available potential energy into KE, and this march results in a flatten of KE spectrum at submesoscales. however, KE spectrum at longer wavelengths follow ~k-3 scaling associated with a forward enstrophy transfer. In the moment phase ( late winter ), KE produced through mixed-layer instabilities is transferred to larger scales, and k-2 power-law besides develops in mesoscales. Keywords: ECCO Products Used: LLC_hiresURL: https://onlinelibrary.wiley.com/doi/10.1029/2021GL094777 Other URLs:
Kuo, Yan-Ning; Lo, Min-Hui; Liang, Yu-Chiao; Tseng, Yu-Heng; Hsu, Chia-Wei (2021). Terrestrial Water Storage Anomalies Emphasize Interannual Variations in Global Mean Sea Level During 1997-1998 and 2015-2016 El Niño Events, Geophysical Research Letters, 10.1029/2021GL094104. Title: Terrestrial Water Storage Anomalies Emphasize Interannual Variations in Global Mean Sea Level During 1997-1998 and 2015-2016 El Niño Events Type: Journal article Publication: Geophysical Research Letters Author(s): Kuo, Yan-Ning ; Lo, Min-Hui ; Liang, Yu-Chiao ; Tseng, Yu-Heng ; Hsu, Chia-Wei Year: 2021 Formatted Citation: Kuo, Y-N., M-H. Lo, Y-C. Liang, Y-H. Tseng, and C-W. Hsu, 2021 : planetary Water Storage Anomalies Emphasize Interannual Variations in Global Mean Sea Level During 1997-1998 and 2015-2016 El Niño Events, Geophysical Research Letters, department of the interior : 10.1029/2021GL094104 Abstract: Interannual variations in ball-shaped bastardly sea charge ( GMSL ) closely correlate with the development of El Niño-Southern Oscillation. however, GMSL differences occur in extreme El Niños ; for case, in the 2015-2016 and 1997-1998 El Niños, the vertex GMSL during the ripe stage of the erstwhile ( 9.00 millimeter ) is about 2.5 times higher than the latter ( 3.72 millimeter ). Analyses from satellite and reanalysis data sets show that the disparity in GMSL is primarily due to barystatic ( ocean mass ) changes. We find that the 2015-2016 consequence developed not strictly as an Eastern Pacific El Niño event but with Central Pacific ( CP ) El Niño forcing. CP El Niños put up to a stronger minus anomaly of ball-shaped planetary body of water storage and subsequent higher barystatic heights. Our results suggest that the mechanism of hydrology-related interannual variations of GMSL should be foster emphasized, as more CP El Niño events are projected to occur. Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/10.1029/2021GL094104 Other URLs:
Hameed, Sultan; Wolfe, Christopher L. P.; Chi, Lequan (2021). Icelandic Low and Azores High Migrations Impact Florida Current Transport in Winter, Journal of Physical Oceanography, 10.1175/JPO-D-20-0108.1. Title: Icelandic Low and Azores High Migrations Impact Florida Current Transport in Winter Type: Journal article Publication: Journal of Physical Oceanography Author(s): Hameed, Sultan ; Wolfe, Christopher L. P. ; Chi, Lequan Year: 2021 Formatted Citation: Hameed, S., C.L.P. Wolfe, and L. Chi, 2021 : Icelandic Low and Azores High Migrations Impact Florida Current Transport in Winter, Journal of Physical Oceanography, department of the interior : 10.1175/JPO-D-20-0108.1 Abstract: former exploit to find an association between variations of per annum averaged Florida Current ecstasy and the North Atlantic Oscillation ( NAO ) have yielded negative results ( Meinen et alabama. 2010 ). here we show that Florida current in winter is impacted by displacements in the positions of the Azores High and the Icelandic Low, the component pressure centers of the NAO. As a linear representation of North Atlantic atmospheric circulation, the NAO index does not distinguish displacements of the imperativeness centers from fluctuations in their intensity. Florida Current transportation is significantly correlated with Icelandic Low longitude with a interim of less than one season. We carried out disturbance experiments in the ECCOv4 model to investigate these correlations. These experiments reveal that east-west shifts of the Icelandic Low perturb the hoist stress in mid-latitudes adjacent to the American coast, driving downwelling ( through longshore winds ) and offshore sea floor anomalies ( through wreathe stress curl ) which travel to the Florida Straits within the lapp temper. Florida Current conveyance is besides correlated with the latitude variations of both the Icelandic Low and the Azores High with a lag of four years. regression analysis shows that latitude variations of the Icelandic Low and the Azores High are associated with positive wind stress curl up anomalies over carry regions in the ocean east of Florida. Rossby wave propagation from this region to the Florida Straits has been suggested as a mechanism for perturbing FCT tape drive in several previous studies ( DiNezio et aluminum. 2009 ; Czeschel et aluminum. 2012 ; Frajka-Williams et alabama. 2013 ; Domingues et aluminum. 2016, 2019 ). Keywords: ECCO Products Used: ECCO-V4URL: https://journals.ametsoc.org/view/journals/phoc/aop/JPO-D-20-0108.1/JPO-D-20-0108.1.xml Other URLs:
Lenetsky, Jed E.; Tremblay, Bruno; Brunette, Charles; Meneghello, Gianluca (2021). Subseasonal Predictability of Arctic Ocean Sea Ice Conditions: Bering Strait and Ekman-Driven Ocean Heat Transport, Journal of Climate, 11 (34), 4449-4462, 10.1175/JCLI-D-20-0544.1. Title: Subseasonal Predictability of Arctic Ocean Sea Ice Conditions : Bering Strait and Ekman-Driven Ocean Heat Transport Type: Journal article Publication: Journal of Climate Author(s): Lenetsky, Jed E. ; Tremblay, Bruno ; Brunette, Charles ; Meneghello, Gianluca Year: 2021 Formatted Citation: Lenetsky, J.E., B. Tremblay, C. Brunette, and G. Meneghello, 2021 : Subseasonal Predictability of Arctic Ocean Sea Ice Conditions : Bering Strait and Ekman-Driven Ocean Heat Transport, Journal of Climate, 34 ( 11 ), 4449-4462, department of the interior : 10.1175/JCLI-D-20-0544.1 Abstract: We use ocean observations and reanalyses to investigate the subseasonal predictability of summer and fall ocean ice area ( SIA ) in the western Arctic Ocean associated with lateral pass ocean heat conveyance ( OHT ) through Bering Strait and vertical OHT along the alaskan coastline from Ekman divergence and upwelling. Results show predictive skill of give Bering Strait OHT anomalies in the Chukchi Sea and eastern East Siberian Sea for June and July SIA, followed by a acuate spend in predictive skill in August, September, and October and a revival of the correlation in November during freeze-up. Fall upwelling of Pacific Water along the Alaskan coastline – a mechanism that was proposed as a preconditioner for lower ocean ice concentration ( SIC ) in the Beaufort Sea the following summer – shows minimal predictive force on both local and regional scales for any months of the melt season. A statistical hindcast based on May Bering Strait OHT anomalies explains 77 % of July Chukchi Sea SIA discrepancy. Using OHT as a forecaster of SIA anomalies in the Chukchi Sea improves hindcasts from the dim-witted linear course by 35 % and predictions from spring sea internal-combustion engine thickness anomalies by 24 %. This exploit highlights the importance of ocean heat anomalies for mellow season sea ice rink prediction and provides experimental evidence of subseasonal changes in bode skill observed in model-based forecasts of the Chukchi Sea. Keywords: ECCO Products Used: ECCO-V4 ; LLC270URL: https://journals.ametsoc.org/view/journals/clim/34/11/JCLI-D-20-0544.1.xml Other URLs: hypertext transfer protocol : //journals.ametsoc.org/view/journals/clim/aop/JCLI-D-20-0544.1/JCLI-D-20-0544.1.xml
Chen, Xiao; Qiu, Bo; Chen, Shuiming; Qi, Yiquan (2021). Period-Lengthening of the Mindanao Current Variability From the Long-Term Tide Gauge Sea Level Measurements, Journal of Geophysical Research: Oceans, 8 (126), 10.1029/2020JC016932. Title: Period-Lengthening of the Mindanao Current Variability From the Long-Term Tide Gauge Sea Level Measurements Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Chen, Xiao ; Qiu, Bo ; Chen, Shuiming ; Qi, Yiquan Year: 2021 Formatted Citation: Chen, X., B. Qiu, S. Chen, and Y. Qi, 2021 : Period-Lengthening of the Mindanao Current Variability From the Long-Term Tide Gauge Sea Level Measurements, Journal of Geophysical Research : Oceans, 126 ( 8 ), department of the interior : 10.1029/2020JC016932 Abstract: Long-term tide gauge sea degree data from 1969 to 2014 at Davao ( 7.08°N, 125.63°E ) and Malakal ( 7. 33°N, 134.46°E ) are analyzed to examine the decadal frequency modulations embedded in the Mindanao Current ( MC ) variability. The MC unevenness inferred from the Davao–Malakal sea level was predominantly biennial in the 1970s. This prevail period switched to interannual in the 1980s and lengthened to decadal during the last two decades. With the help of the basin-scale sea level information from satellite altimeter measurements, it is found that the sea level-inferred MC variability represents the coherent changes of the wind-driven tropical coil in the western North Pacific. An probe into the long-run wind try coil data reveals that its predominate period undergo similar biennial-interannual-decadal transitions in the western tropical Pacific, implying the impel nature of the period-lengthening of the MC variability during the past half-a-century. While the sign of the zodiac of the MC unevenness is largely determined by the Malakal ocean level signals on the interannual and decadal time scales, the Davao ocean level change becomes crucial when the time scale extends to multi-decades. Keywords: ECCO Products Used: ECCO2URL: https://onlinelibrary.wiley.com/doi/10.1029/2020JC016932 Other URLs:
Qiu, Bo; Colin, Patrick L.; Chen, Shuiming (2021). Time-Varying Upper Ocean Circulation and Control of Coral Bleaching in the Western Tropical Pacific, Geophysical Research Letters, 14 (48), 10.1029/2021GL093632. Title: Time-Varying Upper Ocean Circulation and Control of Coral Bleaching in the western Tropical Pacific Type: Journal article Publication: Geophysical Research Letters Author(s): Qiu, Bo ; Colin, Patrick L. ; Chen, Shuiming Year: 2021 Formatted Citation: Qiu, B., P.L. Colin, and S. Chen, 2021, Time-Varying Upper Ocean Circulation and Control of Coral Bleaching in the western Tropical Pacific, Geophysical Research Letters, 48 ( 14 ), department of the interior : 10.1029/2021GL093632 Abstract: The western tropical Pacific Ocean ( WTPO ) features complicated ocean circulation systems and has the warmest worldly concern open-ocean waters. Small upper ocean temperature change there can exert meaning impact on the regional coral reef ecosystems. In the past three decades, moderate to severe coral bleaching events have been observed in the WTPO surrounding Palau in 1998, 2010, 2016, 2017, and 2020. Reflecting the diversity of El Niño-Southern Oscillation ( ENSO ) variability, the note coral bleaching austereness does not correspond simply to the amplitude of an ENSO index, such as Niño-3.4. By conducting an upper ocean temperature budget, we found the time-varying upper berth ocean circulation advection acted to damp the anomalous coat estrus magnetic field force and played critical roles in controlling the surface ocean thermal conditions around Palau. This happened either directly via the advective temperature flow convergence, or indirectly through the pre-conditioning of upper ocean thermal structures. Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/10.1029/2021GL093632 Other URLs:
Pillar, Helen; Nguyen, An T.; Campin, Jean-Michel; Heimbach, Patrick (2021). Momentum Budget Evaluation in ASTE Release 1 Part I: Full momentum budget, MIT Libraries. Title: Momentum Budget Evaluation in ASTE Release 1 Part I : Full momentum budget Type: Report Publication: MIT Libraries Author(s): Pillar, Helen ; Nguyen, An T. ; Campin, Jean-Michel ; Heimbach, Patrick Year: 2021 Formatted Citation: Pillar, H., An T. Nguyen, J-M. Campin, P. Heimbach, 2021 : Momentum Budget Evaluation in ASTE Release 1 Part I : Full momentum budget, MIT Libraries Abstract: The determination of these notes is to describe how to perform accurate momentum budget analyses using output signal from the first free of the Arctic and Subpolar gyresTate Estimate [ ASTE R1 Nguyen et aluminum. 2021b ]. The goal of these analyses is to partition, at the grid-point tied, the rate of variety of momentum into all of its conducive terms in the momentum equality, such as wind instrument and Coriolis forces, horizontal advection, resolved dispersion of momentum, parameterized diffusion of respective kinds, etc. We refer to “ closing the budget ” when the total of all terms in the momentum equality accurately balance the total Eulerian tendency. Keywords: ECCO Products Used: ASTEURL: https://hdl.handle.net/1721.1/130943 Other URLs:
Pefanis, Vasileios (2021). Loading of coloured dissolved organic matter in the Arctic Mediterranean Sea and its effects on the ocean heat budget, University of Bremen. Title: Loading of coloured dissolve organic matter in the Arctic Mediterranean Sea and its effects on the ocean heat budget Type: thesis Publication: University of Bremen Author(s): Pefanis, Vasileios Year: 2021 Formatted Citation: Pefanis, V., 2020 : load of tinge dissolved organic count in the Arctic Mediterranean Sea and its effects on the ocean heat budget, University of Bremen Abstract: Currently, the most rapid increase in near-surface air out temperature takes space inthe Arctic, accompanied by a decline in sea frosting cover. consequently, the subaqueous shortwave radiation, and thus, the type and measure of phytoplankton are changing. In this context, the thaw permafrost, accompanied by increase precipitation and fresh water discharge, is expected to result in higher load of color dissolved organic matter ( CDOM ) and sum suspend matter ( TSM ) entering the Arctic Ocean. The measure of these optically active water constituents determines how much light is absorbed in the surface waters and how much can reach greater depths, affecting the vertical distribution of heat. In this dissertation, I foremost examine the likely of CDOM and TSM in enhancing the radiative heat and ocean ice melting in the shelf waters of the Laptev Sea, an area heavily influenced by one of the largest river systems in the Arctic region. By using in situ observations, I simulate the in-water radiative inflame utilizing coupled atmosphere-ocean radiative transportation model ( RTM ). The results indicate that CDOM and TSM highly affect the energy budget of the Laptev Sea shelf waters, absorbing most of the solar energy in the foremost 2 meters of the water system column. The increase absorb energy leads to higher ocean internal-combustion engine thaw rates and changes in the heat exchange with the air. By using satellite distant feel and RTM, I quantify the spatial distribution of radiative heating in the Laptev Sea for a typical summer sidereal day. The spatial patterns of radiative heating system close follow the distribution of the optically active water constituents, with the highest energy assimilation occurring over river-influenced waters. As a next step, I upscale the former linear and regional cogitation by means of general circulation modeling for the stallion Arctic Mediterranean Sea. By operating an ocean biogeochemical exemplar coupled to a general circulation model with sea ice united states virgin islands ( Darwin-MITgcm ), the effect of phytoplankton and CDOM is incorporated into the in-water shortwave radiation penetration dodge. account for their radiative effect increases the sea surface temperature ( SST ) in summer, decreases the sea methamphetamine assiduity, and induces more heating system loss to the atmosphere, chiefly through sensible and latent heating system magnetic field. In some parts of the Eastern Arctic, the sea ice season is reduced by up to one calendar month. CDOM drives 48 % of the summer changes in SST, suggesting that an increase in its concentration will amplify the note Arctic airfoil warming. additionally, the CDOM consequence alters the vertical diffusion, advection, and non-local erect blend of heat. The shortwave heat and upright diffusion terms account for a bombastic part of the Arctic-wide changes in the heat budget throughout the year. On the contrary, in the Atlantic sector, differences in the subsurface heating system can be largely determined by advective and non-local mix processes in spring and winter. In the norwegian Sea, the subsurface winter collateral dynamic effect is 2.7 times larger than the consequence of shortwave inflame. These results underline the electric potential of collateral changes in advective and mixing processes in intensifying or dumping the send effect of CDOM at the subsurface. The changes induced by CDOM feed back on phytoplankton and CDOM itself, leading to higher annual bastardly come on concentrations for both of them. On the contrary, phytoplankton reduces at the subsurface resulting in a 16.6 % overall biomass decrease in the upper 100 m. The areas where light limits phytoplankton emergence, boom at the expense of alimentary restriction. In spring, reduced unaccented handiness causes a phytoplankton flower stay and an increase in nutrient concentrations. however, in summer the excess of nutrients together with the light limitation restrict phytoplankton growth in a few tens of meters from the ocean coat leading to an intensification and stay of the end of the bloom, specially at the Barents Sea. These findings indicate that a future increase of CDOM will ignite a secondary coil positive feedback mechanism on the Arctic ‘s coat warming, through increased phytoplankton and CDOM light preoccupation close to the coat. Keywords: ECCO Products Used: ECCO2URL: https://scholar.archive.org/work/vvonm62f2jg5tejryw7rkcksvy/access/wayback/https://media.suub.uni-bremen.de/bitstream/elib/4849/1/Dissertation_Vasileios_Pefanis.pdf Other URLs:
Bruera, Renzo (2021). Detection of Lagrangian Coherent Structures in oceanic flows, Universitat Polite’cnica de Catalunya, 133. Title: Detection of Lagrangian Coherent Structures in oceanic flows Type: thesis Publication: Universitat Polite’cnica de Catalunya Author(s): Bruera, Renzo Year: 2021 Formatted Citation: Bruera, R., 2021 : detection of Lagrangian Coherent Structures in oceanic flows, Universitat Polite’cnica de Catalunya Abstract: The Atlantic Meridional Overturning Circulation ( AMOC ) is a complex system of shallow and deep currents in the Atlantic Ocean which plays a all-important character in the regulation of the Earth ‘s climate. Lagrangian Coherent Structures ( LCS ) are geometric objects existing in the cover phase quad of dynamic systems which organise the menstruation around them. presently there exist respective methods for the detection of LCS. We describe and discuss the consumption of Lagrangian descriptors as a joyride for detecting LCS and apply it in the lawsuit of the AMOC to study and identify relevant transmit pathways. We successfully identify the main components of the AMOC and their interactions and observe raw convective regions off the slide of the United States and the Grand Banks of Newfoundland. Keywords: ECCO Products Used: ECCO-V4URL: https://upcommons.upc.edu/handle/2117/348777 Other URLs:
Rigby, Shaun (2021). The Distribution and Vertical Transport of Resources in the Upper Ocean, University of Liverpool, 10.17638/03123760+C21. Title: The Distribution and Vertical Transport of Resources in the Upper Ocean Type: thesis Publication: University of Liverpool Author(s): Rigby, Shaun Year: 2021 Formatted Citation: Rigby, S., 2021 : The Distribution and Vertical Transport of Resources in the Upper Ocean, University of Liverpool Abstract: Marine phytoplankton back higher trophic levels and are a key component of the biological carbon pump. The growth of marine phytoplankton is supported by the handiness of bio-essential resources and incidental light in the amphetamine ocean. Over retentive periods, the biological carbon paper pump is sustained by the refilling of depleted resources. In winter, the deepening of the shuffle level entrains underlying waters, transferring resources between the seasonal worker thermocline and assorted layer. The transplant of properties by entrainment is augmented by other physical processes, such as diapycnal dispersion and aeolian deposit. This dissertation aims to synthesise and exploit new datasets in the Atlantic Ocean and Equatorial Pacific Ocean to quantify mixed-layer resource handiness and physical resource transfers into the amphetamine ocean. The handiness of resources in the winter mixed-layer is quantified by combining experimental data from the GEOTRACES program with assorted layer estimates from a ball-shaped data assimilation exemplary. Basin-scale patterns in the handiness of nitrate, phosphate, silicic acid, cadmium, zinc, cobalt, cast-iron and manganese throughout the Atlantic Ocean mixed-layer are identified. relative to phosphate, we show that the subtropical North Atlantic is depleted in nitrate and cadmium, while enriched in silicic acid, zinc, cobalt, iron and manganese, with the reverse true in high latitudes. intermediate conditions in relative resource handiness are located in mid latitudes. Differences in the handiness of each resource are linked to the erect structure, where mixed-layer resource stoichiometry is governed by offsets in nutricline depths between resources. We note a couple of silicic acidic and zinc vertical profiles in the subtropical North Atlantic, in contrast to recent works highlighting the rapid recycling of zinc compared to silicic acid ; however, we suggest that reversible scavenge plays a all-important character in setting the zinc vertical profile in the deep body of water column, causing an alignment with silicic acidic. Winter-time entrainment increases the handiness of nutrient-type resources, such as nitrate, while surface stocks are eroded for those resources with scavenged-type resources, such as manganese, due to their vertical distributions, inducing a transfer of these resources from the mix layer into the seasonal thermocline. In the mixed-layer, singular nitrogen limit is identified in low latitudes, while singular cast-iron restriction is identified at high latitudes, highlighting the potential for high latitude cast-iron handiness to influence broken latitude biogeochemistry. Inter-annual unevenness in the depth of winter mix causes changes in the winter mixed-layer resource stoichiometry, most notably in the low latitude North Atlantic where the blend layer becomes richer in silicic acid, zinc, cobalt, iron and manganese relative to phosphate under a shallow winter mixed-layer scenario. Changes to winter mixed-layer resource stoichiometry has crucial ecological implications. For example, in the equatorial Atlantic, changes to the distributions of nitrate and iron expand the diazotroph recess and hamper the success of non-diazotrophs. To further understand the importance of winter-time entrainment, this thesis applied the helium ‘ flux gauge ’ approach to estimate physical mix in the upper ocean during two seasonally different airfield campaigns. Results demonstrate that active entrainment increases sum physical shuffle by a factor of ~7 compared to regions where entrainment is relatively weak. Vertical resource fluxes are besides controlled by gradients in vertical resource profiles. vertical gradients in resource profiles are linked to oxygen gradients, as expected from current cognition of trace element oxidation-reduction chemistry, however, there are differences relationships with oxygen between resource and region. In the subtropical North Atlantic, we demonstrate that variability in resource fluxes is governed by mixing, while in the equatorial Pacific, variability in resource gradients and mixing equally controls resource flux variability. The vertical resource magnetic field stoichiometry is compared to the cellular stoichiometry of in-situ biota to show there are mismatches between external resource provision and biological demand. Finally, an probe into the consequence of seafloor topography on resource conveyance showed that mixing in the amphetamine 1000 megabyte is a component ~2 greater over shallow topography ( Rainbow hydrothermal vent site, ~2700 m depth ) compared to a deeper topographical site ( Trans-Atlantic Geotraverse hydrothermal vent site, ~3600 m astuteness ) along the middle atlantic Ridge. Vertical resource fluxes are inferred by combining data from vertical microstructure profilers with resource profiles based on the geographic stead and external wedge by wind and tides. broadly, nutrient-type and scavenged-type resources demonstrated upwards and downwards diapycnal fluxes, respectively. vertical diffusivity at the shallow topographical locate was estimated as a factor ~2 larger when compared to the deep topographical site. The addition in mixing at the shallow topographical locate was not matched by the magnitude of resource fluxes, as gradients in vertical resource profiles were weaker at the shallow locate, mitigating against the increase in mixing. Differences in the vertical resource profiles are linked to differences in the shuffle rates, water multitude contributions and positive feedback rates between the sites. The contrasting vertical diffusivity observed at the shallow and deep topographical sites may be used to gain insights into a future ocean where vertical diffusivity is reduced, and stratification increased. In such a scenario, vertical resource profiles may adjust to a reduction in desegregate and consequently mitigate change to the overall upright resource flux. therefore, the first-order opinion that a reduction in diffusivity drives a proportional decrease in the resource liquefy is challenged when coincident changes to resource profiles are considered. Keywords: ECCO Products Used: ECCO-V4URL: https://livrepository.liverpool.ac.uk/3123760/ Other URLs:
Williams, Timothy; Korosov, Anton; Rampal, Pierre; Ólason, Einar (2021). Presentation and evaluation of the Arctic sea ice forecasting system neXtSIM-F, The Cryosphere, 7 (15), 3207-3227, 10.5194/tc-15-3207-2021. Title: Presentation and evaluation of the Arctic ocean frosting forecasting system neXtSIM-F Type: Journal article Publication: The Cryosphere Author(s): Williams, Timothy ; Korosov, Anton ; Rampal, Pierre ; Ólason, Einar Year: 2021 Formatted Citation: Williams, T., A. Korosov, P. Rampal, and E. Ólason, 2021 : display and evaluation of the Arctic sea frosting forecasting organization neXtSIM-F, The Cryosphere, 15 ( 7 ), 3207-3227, department of the interior : 10.5194/tc-15-3207-2021 Abstract: The neXtSIM-F ( neXtSIM prognosis ) prediction arrangement consists of a stand-alone sea ice mannequin, neXtSIM ( neXt-generation Sea Ice Model ), forced by the TOPAZ ocean forecast and the ECMWF atmospheric bode, combined with day by day data assimilation of ocean ice concentration. It uses the novel brittle Bingham–Maxwell ( BBM ) sea ice rheology, making it the first bode based on a continuum model not to use the viscous–plastic ( VP ) rheology. It was tested in the Arctic for the time period November 2018-June 2020 and was found to perform well, although there are some shortcomings. Despite drift not being assimilated in our arrangement, the sea frost drift is good throughout the year, being relatively unbiased, tied for longer lead times like 5 d. The RMSE in speed and the full RMSE are besides good for the first 3 or then days, although they both increase steadily with lead clock. The thickness distribution is relatively good, although there are some regions that experience excessive thickening with negative implications for the summer sea ice extent, peculiarly in the Greenland Sea. The neXtSIM-F prediction system assimilates OSI SAF sea ice assiduity products ( both SSMIS and AMSR2 ) by modifying the initial conditions daily and adding a compensate hotness flux to prevent get rid of ice growing binding besides quickly. The assimilation greatly improves the sea ice extent for the prognosis duration. Keywords: ECCO Products Used: ECCO2URL: https://tc.copernicus.org/articles/15/3207/2021/ Other URLs:
Miao, Mingfang; Zhang, Zhiwei; Qiu, Bo; Liu, Zhiyu; Zhang, Xincheng; Zhou, Chun; Guan, Shoude; Huang, Xiaodong; Zhao, Wei; Tian, Jiwei (2021). On contributions of multiscale dynamic processes to the steric height in the northeastern South China Sea as revealed by moored observations, Geophysical Research Letters, 14 (48), 10.1029/2021GL093829. Title: On contributions of multiscale moral force processes to the steric acme in the northeastern South China Sea as revealed by moor observations Type: Journal article Publication: Geophysical Research Letters Author(s): Miao, Mingfang ; Zhang, Zhiwei ; Qiu, Bo ; Liu, Zhiyu ; Zhang, Xincheng ; Zhou, Chun ; Guan, Shoude ; Huang, Xiaodong ; Zhao, Wei ; Tian, Jiwei Year: 2021 Formatted Citation: Miao, M., Z. Zhang, B. Qiu, Z. Liu, X. Zhang, C. Zhou, S. Guan, X. Huang, W. Zhao, and J. Tian, 2021 : On contributions of multiscale dynamic processes to the steric altitude in the northeastern South China Sea as revealed by moor observations, Geophysical Research Letters, 48 ( 14 ), department of the interior : 10.1029/2021GL093829 Abstract: Based on 2-year moor measurements in the northeastern South China Sea, contributions of multiscale dynamic processes to steric acme ( SH ) at 60 m are quantified. It shows that on average, root-mean-squared ( RMS ) SHs of mesoscales, submesoscales, diurnal and semidiurnal home tides ( ITs ), and supertidal home graveness waves ( IGWs ) are 7.56, 1.01, 1.19, 2.84, and 1.46 curium, respectively, with their respective relative contributions of 53.8 %, 7.2 %, 8.5 %, 20.2 %, and 10.4 %. The SHs of ITs and supertidal IGWs are dominated by stationary and nonstationary components, respectively. seasonally, mesoscales and submesoscales show larger RMS SHs in winter than summer but the opposite occurs for ITs and supertidal IGWs. Although the RMS SH of submesoscales exceeds nonstationary ITs in winter, it is much smaller than the union of nonstationary ITs and supertidal IGWs. consequently, to detect submesoscales using SWOT data, approaches to remove the SHs of nonstationary ITs and supertidal IGWs are called for. Keywords: ECCO Products Used: LLC_hiresURL: https://onlinelibrary.wiley.com/doi/10.1029/2021GL093829 Other URLs:
Cohanim, Kaylie; Zhao, Ken X.; Stewart, Andrew L. (2021). Dynamics of Eddies Generated by Sea Ice Leads, Journal of Physical Oceanography, 10.1175/JPO-D-20-0169.1. Title: Dynamics of Eddies Generated by Sea Ice Leads Type: Journal article Publication: Journal of Physical Oceanography Author(s): Cohanim, Kaylie ; Zhao, Ken X. ; Stewart, Andrew L. Year: 2021 Formatted Citation: Cohanim, K., K.X. Zhao, and A.L. Stewart, 2021 : Dynamics of Eddies Generated by Sea Ice Leads, Journal of Physical Oceanography, department of the interior : 10.1175/JPO-D-20-0169.1 Abstract: Interaction between the atmosphere and ocean in sea ice-covered regions is largely concentrated in leads, which are farseeing, narrow openings between sea ice floes. Refreezing and seawater rejection in these leads injects salt that plays a identify character in maintaining the arctic halocline. The inject salt forms dense plumes that subsequently become baroclinically unstable, producing submesoscale eddies that facilitate horizontal spread of the salt anomalies. however, it remains ill-defined which properties of the stratification and leads most powerfully influence the vertical and horizontal dissemination of lead-input salt anomalies. In this cogitation, the spread of lead-injected irrepressibility anomalies by mix layer and eddy processes are investigated using a suite of idealize numeral simulations. The simulations are complemented by dynamic theories that predict the preen convection depth, horizontal eddy remove coefficient and eddy kinetic energy as functions of the ambient stratification and spark advance properties. It is shown that vertical penetration of irrepressibility anomalies is accurately predicted by a mix layer temperature and salt budget until the onset of baroclinic instability ( ~3 days ). subsequently, these irrepressibility anomalies are spread horizontally by eddies. The horizontal eddy diffusivity is accurately predicted by a shuffle length scaling, with a speed scale set by the potential energy released by the sinking salt plume and a duration scale set by the deformation radius of the ambient stratification. These findings indicate that the intermittent open of leads can efficiently populate the diametric halocline with submesoscale coherent vortices with diameters of around 10 kilometer, and provide a step toward parameterizing their consequence on the horizontal redistribution of brininess anomalies. Keywords: ECCO Products Used: LLC_hiresURL: https://journals.ametsoc.org/view/journals/phoc/aop/JPO-D-20-0169.1/JPO-D-20-0169.1.xml Other URLs:
Zúñiga, D.; Sanchez-Vidal, A.; Flexas, M.M.; Carroll, D.; Rufino, M.M.; Spreen, G.; Calafat, A.; Abrantes, F. (2021). Sinking Diatom Assemblages as a Key Driver for Deep Carbon and Silicon Export in the Scotia Sea (Southern Ocean), Frontiers in Earth Science (9), 10.3389/feart.2021.579198. Title: Sinking Diatom Assemblages as a Key Driver for Deep Carbon and Silicon Export in the Scotia Sea ( Southern Ocean ) Type: Journal article Publication: Frontiers in Earth Science Author(s): Zúñiga, D. ; Sanchez-Vidal, A. ; Flexas, M.M. ; Carroll, D. ; Rufino, M.M. ; Spreen, G. ; Calafat, A. ; Abrantes, F. Year: 2021 Formatted Citation: Zúñiga, D., A. Sanchez-Vidal, M.M. Flexas, D. Carroll, M.M. Rufino, G. Spreen, A. Calafat, and F. Abrantes, 2021 : Sinking Diatom Assemblages as a Key Driver for Deep Carbon and Silicon Export in the Scotia Sea ( Southern Ocean ), Frontiers in Earth Science, 9, department of the interior : 10.3389/feart.2021.579198 Abstract: Physical and biogeochemical processes in the southerly Ocean are fundamental for modulating ball-shaped climate. In this context, a process-based sympathize of how antarctic diatoms control primary production and carbon export, and hence global-ocean carbon sequestration, has been identified as a scientific precedence. here we use novel sediment trap observations in combination with a data-assimilative ocean biogeochemistry model ( ECCO-Darwin ) to understand how environmental conditions trigger diatom ecology in the iron-fertilized southerly Scotia Sea. We unravel the function of diatoms collection in controlling the biogeochemistry of sinking material escaping from the euphotic zone, and discuss the link between changes in upper-ocean environmental conditions and the composition of settling material exported from the open to 1,000 m depth from March 2012 to January 2013. The combine analysis of in situ observations and model simulation suggests that an anomalous sea-ice episode in early summer 2012-2013 favored ( via restratification due to sea-ice thaw ) an early massive bloom of Corethron pennatum that quickly sank to depth. This event drove high biogenic silicon to organic carbon export ratios, while modulating the carbon paper and nitrogen isotopic signals of sinking organic matter reaching the deep ocean. Our findings highlight the role of diatom ecology in modulating silicon vs. carbon sequestration efficiency, a critical factor for determining the stoichiometric relationship of limiting nutrients in the southern Ocean. Keywords: ECCO Products Used: LLC270URL: https://www.frontiersin.org/articles/10.3389/feart.2021.579198/full Other URLs:
Mensah, Vigan; Nakayama, Yoshihiro; Fujii, Masakazu; Nogi, Yoshifumi; Ohshima, Kay I. (2021). Dense water downslope flow and AABW production in a numerical model: Sensitivity to horizontal and vertical resolution in the region off Cape Darnley polynya, Ocean Modelling (165), 101843, 10.1016/j.ocemod.2021.101843. Title: Dense water descent stream and AABW production in a numerical model : sensitivity to horizontal and upright resolution in the region off Cape Darnley polynya Type: Journal article Publication: Ocean Modelling Author(s): Mensah, Vigan ; Nakayama, Yoshihiro ; Fujii, Masakazu ; Nogi, Yoshifumi ; Ohshima, Kay I. Year: 2021 Formatted Citation: Mensah, V., Y. Nakayama, M. Fujii, Y. Nogi, and K.I. Ohshima, 2021, Dense water descent flow and AABW production in a numerical model : sensitivity to horizontal and upright resolution in the region off Cape Darnley polynya, Ocean Modelling, 165, 101843, department of the interior : 10.1016/j.ocemod.2021.101843 Abstract: The formation of Dense Shelf Water ( DSW ) and Antarctic Bottom Water ( AABW ) in the southern Ocean is an substantive part of the thermohaline circulation, and understanding this phenomenon is crucial for studying the global climate. AABW is formed as DSW flows down the continental slope and mixes with the surrounding waters. however, DSW formation and its lineage remains a ailing resolved write out in many ocean models. We, therefore, simulated the formation and origin of DSW and investigated the mannequin sensitivities to horizontal and vertical power system spacings. The Massachusetts Institute of Technology general circulation model ( MITgcm ) was used for the region off Cape Darnley in East Antarctica, one of the chief AABW production areas, where historic and mooring data are available for comparison. Simulations with coarse horizontal grid resolutions of order ( 10 kilometer ) yielded high volumes of DSW on the ledge. however, the largest contribution of this DSW was transformed into average body of water and advected westward. Horizontal exemplary resolutions equal to or higher than 2 km were required to simulate the descent of DSW and a realistic AABW production. model meter series at a mooring located at a depth of 2,600 molarity showed periodic fluctuations in speed and temperature of 0.3 ms-1 and 0.5 °C, respectively, coherent with observations. We besides found that high-resolution bathymetry datasets are crucial because the newly formed AABW book was reduced by 20 % when a smooth bathymetry was used on a 2-km resolving power grid. vertical resolution had little influence on model performance because the plume was much slurred ( > 170 megabyte ) than the grids width. therefore, reproducing the descent flow of DSW and AABW formation in the Cape Darnley region can be achieved with a senior high school horizontal resolution ( 2 kilometer ) and a relatively coarse vertical resolution ( 100 megabyte on the continental gradient ). Keywords: ECCO Products Used: LLC270URL: https://linkinghub.elsevier.com/retrieve/pii/S1463500321000950 Other URLs:
Tak, Yong-Jin; Song, Hajoon; Cho, Yang-Ki (2021). Impact of the reemergence of North Pacific subtropical mode water on the multi-year modulation of marine heatwaves in the North Pacific Ocean during winter and early spring, Environmental Research Letters, 7 (16), 74036, 10.1088/1748-9326/ac0cad. Title: Impact of the reemergence of North Pacific subtropical manner body of water on the multi-year modulation of marine heatwaves in the North Pacific Ocean during winter and early bounce Type: Journal article Publication: Environmental Research Letters Author(s): Tak, Yong-Jin ; Song, Hajoon ; Cho, Yang-Ki Year: 2021 Formatted Citation: Tak, Y-J., H. Song, Y-K., Cho, 2021 : impact of the reemergence of North Pacific subtropical mode water on the multi-year modulation of marine heatwaves in the North Pacific Ocean during winter and early spring, Environmental Research Letters, 16 ( 7 ), 74036, department of the interior : 10.1088/1748-9326/ac0cad Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://iopscience.iop.org/article/10.1088/1748-9326/ac0cad Other URLs:
Kotabova, Eva; Malych, Ronald; Pierella Karlusich, Juan José; Kazamia, Elena; Eichner, Meri; Mach, Jan; Lesuisse, Emmanuel; Bowler, Chris; Prášil, Ondřej; Sutak, Robert (2021). Complex Response of the Chlorarachniophyte Bigelowiella natans to Iron Availability, mSystems, 1 (6), 10.1128/mSystems.00738-20. Title: Complex Response of the Chlorarachniophyte Bigelowiella natans to Iron Availability Type: Journal article Publication: mSystems Author(s): Kotabova, Eva ; Malych, Ronald ; Pierella Karlusich, Juan José ; Kazamia, Elena ; Eichner, Meri ; Mach, Jan ; Lesuisse, Emmanuel ; Bowler, Chris ; Prášil, Ondřej ; Sutak, Robert Year: 2021 Formatted Citation: Kotabova, E., R. Malych, K. Pierella, J. Juan, E. Kazamia, M. Eichner, J. Mach, E. Lesuisse, C. Bowler, O. Prášil, and R. Sutak, 2021 : complex Response of the Chlorarachniophyte Bigelowiella natans to Iron Availability, mSystems, 6 ( 1 ), department of the interior : 10.1128/mSystems.00738-20 Abstract: Despite low iron handiness in the ocean, marine phytoplankton require considerable amounts of iron for their growth and proliferation. While there is a constantly growing cognition of cast-iron consumption and its function in the cellular processes of the most abundant marine photosynthetic groups, there are still largely dominate branches of the eukaryotic tree of animation, such as the chlorarachniophytes. Keywords: ECCO Products Used: ECCO2URL: https://journals.asm.org/doi/10.1128/mSystems.00738-20 Other URLs: hypertext transfer protocol : //msystems.asm.org/content/6/1/e00738-20
Leonid YURGANOV; Dustin CARROLL; Andrey PNYUSHKOV; Igor POLYAKOV; Hong ZHANG (2021). Ocean stratification and sea-ice cover in Barents and Kara seas modulate sea-air methane flux: satellite data, Advances in Polar Science, 2 (32), 118-140, 10.13679/j.advps.2021.0006. Title: Ocean stratification and sea-ice cover in Barents and Kara ocean modulate sea-air methane flux : satellite data Type: Journal article Publication: Advances in Polar science Author(s): Leonid YURGANOV ; Dustin CARROLL ; Andrey PNYUSHKOV ; Igor POLYAKOV ; Hong ZHANG Year: 2021 Formatted Citation: Yurganov, L., D. Carroll, A. Pnyushkov, I. Polyakov, and H. Zhang, 2021 : ocean stratification and sea-ice cover in Barents and Kara ocean modulate sea-air methane flux : satellite data, Advances in Polar Science, 32 ( 2 ), 118-140, department of the interior : 10.13679/j.advps.2021.0006 Abstract: Keywords: ECCO Products Used: LLC270URL: http://aps-polar.org/paper/2021/32/02/A210624000003 Other URLs:
Lee, Eun Ae; Kim, Sung Yong (2021). A diagnosis of surface currents and sea surface heights in a coastal region, Continental Shelf Research, 104486, 10.1016/j.csr.2021.104486. Title: A diagnosis of surface currents and sea surface heights in a coastal region Type: Journal article Publication: Continental Shelf Research Author(s): Lee, Eun Ae ; Kim, Sung Yong Year: 2021 Formatted Citation: Lee, E.A., and S.Y. Kim, 2021 : A diagnosis of surface currents and sea surface heights in a coastal region, Continental Shelf Research, 104486, department of the interior : 10.1016/j.csr.2021.104486 Abstract: Upcoming satellite missions will observe the ocean surface stature ( SSH ) fields at a very high spatial resolution, which has generated an pressing indigence to better understand how well geostrophy can represent the ocean stream plain at fine scales, particularly in coastal regions characterized by complex flow geometry. We conduct statistical and apparitional analyses of high-resolution surface currents and SSHs off the Oregon slide to examine the proportional contribution of geostrophy and ageostrophy in coastal ocean currents. We analyze forward numerical simulations based primarily on a regional ocean model ( ROMS ) and use regional observations of high-frequency radar ( HFR ) -derived come on currents and altimeter-derived geostrophic currents and a subset of ball-shaped domain numerical simulations ( MITgcm ) as secondary coil resources. Regional submesoscale ageostrophic currents account for up to 50 % of the sum division and are primarily associated with near-inertial currents and internal tides. Geostrophy becomes dominant allele at time scales longer than 3 to 10 days and at spatial scales longer than 50 kilometer, and is dependant on the depth and distance from the coast in the cross-shore guidance. Ageostrophy dominates in the near-inertial and super-inertial frequency bands, which correspond to near-inertial motions ( Coriolis wedge dominates ) and high-frequency internal waves/tides ( imperativeness gradient dominates ), respectively. Because of ageostrophy, it may not be possible to estimate submesoscale currents from SSHs obtained from upcoming satellite missions using the geostrophic relationship. frankincense, other coincident high-resolution in-situ observations such as HFR-derived surface currents, together with data assimilation techniques, should be used for constructive data integration to resolve submesoscale currents. Keywords: ECCO Products Used: LLC_hiresURL: https://linkinghub.elsevier.com/retrieve/pii/S0278434321001412 Other URLs:
Swierczek, Stan; Mazloff, Matthew R.; Morzfeld, Matthias; Russell, Joellen L. (2021). The effect of resolution on vertical heat and carbon transports in a regional ocean circulation model of the Argentine Basin, Journal of Geophysical Research: Oceans, 10.1029/2021JC017235G7. Title: The effect of settlement on vertical heat and carbon transports in a regional ocean circulation model of the Argentine Basin Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Swierczek, Stan ; Mazloff, Matthew R. ; Morzfeld, Matthias ; Russell, Joellen L. Year: 2021 Formatted Citation: Swierczek, S., M.R. Mazloff, M. Morzfeld, and J.L. Russell, 2021 : The effect of resolution on vertical heat and carbon transports in a regional ocean circulation model of the Argentine Basin, Journal of Geophysical Research : Oceans, department of the interior : 10.1029/2021JC017235G7 Abstract: Simulations of the Argentine Basin have large uncertainties associated with quantities such as air-sea exchanges of inflame and carbon in current generation climate models and ocean reanalysis products. This is due to the complex topography, profound undersampling until recent years, and strong currents and blend of subpolar and subtropical urine masses in the washbasin. Because mix of water system masses is crucial here, model resoluteness is hypothesized to play an authoritative character in estimating ocean quantities and determining overall budgets. We construct three regional ocean models with biogeochemistry at 1/3°, 1/6°, and 1/12° resolutions for the year 2017 to investigate heat and carbon paper dynamics in the area and determine the effect of model resoluteness on these dynamics. initial conditions and boundary force from BSOSE ( the Biogeochemical Southern Ocean State Estimate ( Verdy & Mazloff, 2017 ), hypertext transfer protocol : //doi.org/10.1002/2016JC012650 ) and atmospheric pull from ERA5 are used. The models are evaluated for accuracy by comparing end product to Argo and BGC-Argo float profiles, BSOSE, and other reanalyses and map products. We then quantify the effect of resolving power on model upper ocean heat and carbon transport and the associate air-sea exchanges. We determine that increasing the resolution from 1/3° to 1/12° enhances the up erect transport and surface exchanges of heat but causes no significant consequence on surface carbon paper fluxes despite enhancing down tape drive of anomalous DIC. Keywords: ECCO Products Used: ECCO-V4 ; SOSEURL: https://onlinelibrary.wiley.com/doi/10.1029/2021JC017235 Other URLs:
Yamazaki, Kaihe; Aoki, Shigeru; Katsumata, Katsuro; Hirano, Daisuke; Nakayama, Yoshihiro (2021). Multidecadal poleward shift of the southern boundary of the Antarctic Circumpolar Current off East Antarctica, Science Advances, 24 (7), eabf8755, 10.1126/sciadv.abf8755. Title: Multidecadal poleward shift of the southern limit of the Antarctic Circumpolar Current off East Antarctica Type: Journal article Publication: Science Advances Author(s): Yamazaki, Kaihe ; Aoki, Shigeru ; Katsumata, Katsuro ; Hirano, Daisuke ; Nakayama, Yoshihiro Year: 2021 Formatted Citation: Yamazaki, K., S. Aoki, K. Katsumata, D. Hirano, and Y. Nakayama, 2021 : Multidecadal poleward shift of the southern boundary of the Antarctic Circumpolar Current off East Antarctica, Science Advances, 7 ( 24 ) eabf8755, department of the interior : 10.1126/sciadv.abf8755 Abstract: The southerly boundary ( SB ) of the Antarctic Circumpolar Current, the southernmost extent of the amphetamine overthrow circulation, regulates the Antarctic thermal conditions. The SB ‘s behavior remains unconstrained because it does not have a pass surface signature. Revisited hydrographic data from off East Antarctica indicate full-depth calefacient from 1996 to 2019, coincident with an extensive poleward shift of the SB subsurface isotherms ( > 50 kilometer ), which is most outstanding at 120°E off the Sabrina Coast. The SB shift key is attributable to enhanced upper overturning circulation and a depth-independent frontlet transfer, by and large accounting for 30 and 70 %, respectively. Thirty years of oceanographic data corroborate the overall and localize poleward shifts that are likely controlled by continental slope topography. numerical experiments successfully reproduce this vicinity and demonstrate its sensitivity to mesoscale processes and weave force. The poleward SB shift under escalate westerlies potentially induces multidecadal warming of Antarctic ledge body of water. Keywords: ECCO Products Used: LLC270URL: https://advances.sciencemag.org/lookup/doi/10.1126/sciadv.abf8755 Other URLs:
Condron, Alan; Hill, Jenna C. (2021). Timing of iceberg scours and massive ice-rafting events in the subtropical North Atlantic, Nature Communications, 3668 (12), 10.1038/s41467-021-23924-0. Title: Timing of crisphead lettuce scours and massive ice-rafting events in the subtropical North Atlantic Type: Journal article Publication: Nature Communications Author(s): Condron, Alan ; Hill, Jenna C. Year: 2021 Formatted Citation: Condron, A. and J.C. Hill, 2021 : time of iceberg scours and massive ice-rafting events in the subtropical North Atlantic, Nature Communications, 12 ( 1 ), 3668, department of the interior : 10.1038/s41467-021-23924-0 Abstract: high resolution seafloor map shows extraordinary attest that massive ( > 300 meter thick ) iceberg once drifted > 5,000 kilometer south along the eastern United States, with > 700 iceberg scours now identified confederacy of Cape Hatteras. here we report on sediment cores collected from respective buried scours that show multiple cover marks align with Heinrich Event 3 ( H3 ), ~31,000 years ago. numerical frigid iceberg simulations indicate that the transport of iceberg to these sites occurs during massive, but ephemeral, periods of raised meltwater fire. Transport of iceberg to the subtropics, away from abstruse water formation sites, may explain why H3 was associated with only a modest increase in ice-rafting across the subpolar North Atlantic, and implies a complex relationship between fresh water pull and climate change. stratigraphy from subbottom data across the flush grade shows there are extra features that are both older and younger, and may align with early periods of elevated meltwater dispatch. Keywords: ECCO Products Used: ECCO2URL: https://www.nature.com/articles/s41467-021-23924-0 Other URLs:
Kaiser, Bryan E.; Saenz, Juan A.; Sonnewald, Maike; Livescu, Daniel (2021). Objective discovery of dominant dynamical processes with intelligible machine learning, Cornell University. Title: objective discovery of dominant dynamic processes with apprehensible machine determine Type: Journal article Publication: Cornell University Author(s): Kaiser, Bryan E. ; Saenz, Juan A. ; Sonnewald, Maike ; Livescu, Daniel Year: 2021 Formatted Citation: Kaiser, B.E., J.A. Saenz, M. Sonnewald, and D. Livescu, 2021 : objective discovery of dominant allele dynamic processes with apprehensible car learn Abstract: The second coming of big data has huge likely for discovery in natural phenomena ranging from climate skill to medicine, but overwhelming complexity stymies insight. Existing hypothesis is frequently not able to succinctly describe outstanding phenomena, and progress has largely relied on ad hoc definitions of dynamic regimes to guide and focus exploration. We present a formal definition in which the identification of dynamic regimes is formulated as an optimization problem, and we propose an apprehensible objective officiate. furthermore, we propose an unsupervised learn model which eliminates the motivation for a priori cognition and ad hoc definitions ; rather, the drug user need only choose appropriate bunch and dimensionality reduction algorithm, and this option can be guided using our proposed objective affair. We illustrate its applicability with example problems drawn from ocean dynamics, tumor angiogenesis, and disruptive limit layers. Our method acting is a step towards unbiased data exploration that allows serendipitous discovery within dynamic systems, with the electric potential to propel the physical sciences forward. Keywords: ECCO Products Used: ECCO-V4URL: https://arxiv.org/abs/2106.12963 Other URLs:
Kumar, Rajesh; Li, Junde; Hedstrom, Kate; Babanin, Alexander V.; Holland, David M.; Heil, Petra; Tang, Youmin (2021). Intercomparison of Arctic sea ice simulation in ROMS-CICE and ROMS-Budgell, Polar Science, 100716, 10.1016/j.polar.2021.100716. Title: Intercomparison of Arctic ocean internal-combustion engine model in ROMS-CICE and ROMS-Budgell Type: Journal article Publication: Polar science Author(s): Kumar, Rajesh ; Li, Junde ; Hedstrom, Kate ; Babanin, Alexander V. ; Holland, David M. ; Heil, Petra ; Tang, Youmin Year: 2021 Formatted Citation: Kumar, R., J. Li, K, Hedstrom, A.V. Babanin, D.M. Holland, P. Heil, and Y. Tang, 2021 : Intercomparison of Arctic sea ice simulation in ROMS-CICE and ROMS-Budgell, Polar Science, 100716, department of the interior : 10.1016/j.polar.2021.100716 Abstract: Accurate representation of the complex ocean-sea frost interaction is hush an ongoing campaign. In this study, we have coupled the Community Ice Code ( CICE ) model and Regional Ocean Modeling System ( ROMS ) to develop a high-resolution regional coupled ocean-sea ice exemplar for polar regions. This setup allows us to investigate the interaction between ocean and sea ice in detail. The Coupled-Ocean-Atmosphere-Wave-Sediment-Transport ( COAWST ) model system is the core of this copulate exemplary. presently, the ROMS model in COAWST uses the Budgell sea ice rink model, embedded as a sub-module in it but introducing a more comprehensive examination sea ice rink model ( CICE ) may provide a better treatment of sea ice. here, we present our preliminary results based on the coupled ROMS-CICE and ROMS-Budgell simulation over the Arctic Ocean. Our results show that both CICE and Budgell models perform beneficial in simulating sea ice concentration during winter than during summer. Compared to the satellite observations, sea methamphetamine concentrations from the CICE model in most subregions have higher correlations and smaller centered root mean square errors, showing higher simulation skills. The ocean frosting thickness biases are larger in the Budgell model in the early months of the class, whereas in the CICE mannequin they are larger after October. Both CICE and Budgell models overestimate the sea frosting extent and sea frosting bulk in summer, and their performances differ in the subregions. Keywords: ECCO Products Used: ECCO2URL: https://linkinghub.elsevier.com/retrieve/pii/S1873965221001055 Other URLs:
Wu, Yang; Wang, Zhaomin; Liu, Chengyan; Yan, Liangjun (2021). Energetics of Eddy-Mean Flow Interactions in the Amery Ice Shelf Cavity, Frontiers in Marine Science (8), 10.3389/fmars.2021.638741. Title: Energetics of Eddy-Mean Flow Interactions in the Amery Ice Shelf Cavity Type: Journal article Publication: Frontiers in Marine Science Author(s): Wu, Yang ; Wang, Zhaomin ; Liu, Chengyan ; Yan, Liangjun Year: 2021 Formatted Citation: Wu, Y., Z. Wang, C. Liu, and L. Yan, 2021 : Energetics of Eddy-Mean Flow Interactions in the Amery Ice Shelf Cavity, Frontiers in Marine Science, 8, department of the interior : 10.3389/fmars.2021.638741 Abstract: previous studies demonstrated that eddy processes play an important function in internal-combustion engine ledge basal fade and the water batch properties of ice ledge cavities. however, the eddy energy generation and dissipation mechanisms in ice ledge cavities have not been studied systematically. The moral force processes of the ocean circulation in the Amery Ice Shelf cavity are studied quantitatively through a Lorenz energy hertz approach for the first base time by using the outputs of a high-resolution coupled regional ocean-sea ice-ice ledge model. Over the stallion sub-ice-shelf pit, mean available likely energy ( MAPE ) is the largest energy reservoir ( 112 TJ ), followed by the mean energizing energy ( MKE, 70 TJ ) and eddy available potential energy ( EAPE, 10 TJ ). The eddy kinetic energy ( EKE ) is the smallest pool ( 5.5 TJ ), which is roughly 8 % of the MKE, indicating importantly suppressed eddy activities by the scuff stresses at methamphetamine ledge establish and bottom topography. The total generation rate of available potential energy is about 1.0 GW, about all of which is generated by basal dissolve and seawater refreezing, i, the alleged “ ice pump. ” The energy generated by ice pump is chiefly dissipated by the ocean-ice ledge and ocean-bottom drag stresses, amounting to 0.3 GW and 0.2 GW, respectively. The EKE is generated through two pathways : the barotropic nerve pathway MAPE→MKE→EKE ( 0.03 GW ) and the baroclinic pathway MAPE→EAPE→EKE ( 0.2 GW ). In addition to immediately supplying the EAPE through baroclinic pathway ( 0.2 GW ), MAPE besides provides 0.5 GW of exponent to MKE to facilitate the barotropic nerve pathway. Keywords: ECCO Products Used: ECCO2URL: https://www.frontiersin.org/articles/10.3389/fmars.2021.638741/full Other URLs:
Kutoglu, Hakan S.; Becek, Kazimierz (2021). Analysis of Ocean Bottom Pressure Anomalies and Seismic Activities in the MedRidge Zone, Remote Sensing, 7 (13), 1242, 10.3390/rs13071242. Title: analysis of Ocean Bottom Pressure Anomalies and Seismic Activities in the MedRidge Zone Type: Journal article Publication: Remote Sensing Author(s): Kutoglu, Hakan S. ; Becek, Kazimierz Year: 2021 Formatted Citation: Kutoglu, H. S., and K. Becek, 2021 : analysis of Ocean Bottom Pressure Anomalies and Seismic Activities in the MedRidge Zone. Remote Sensing, 13 ( 7 ), 1242, doi:10.3390/rs13071242 Abstract: The Mediterranean Ridge accretionary complex ( MAC ) is a merchandise of the convergence of Africa-Europe-Aegean plates. As a resultant role, the area exhibits a continuous mass change ( horizontal/vertical movements ) that generates earthquakes. Over the survive 50 years, approximately 430 earthquakes with M ≥ 5, including 36 M ≥ 6 earthquakes, have been recorded in the region. This sketch aims to link the ocean bed deformations manifested through ocean bottom imperativeness variations with the earthquakes ‘ time series. To this conclusion, we investigated the time serial of the ocean bottom imperativeness ( OBP ) anomalies derived from the Gravity Recovery and Climate Experiment ( GRACE ) and GRACE Follow-On ( GRACE-FO ) satellite missions. The OBP time series comprises a decreasing drift in accession to 1.02, 1.52, 4.27, and 10.66-year periodic components, which can be explained by atmosphere, oceans, and hydrosphere ( AOH ) processes, the Earth ‘s pole apparent motion, solar natural process, and core-mantle coupling. It can be inferred from the results that the OBP anomalies time series/mass transfer is linked to a rising tendency and periods in the earthquakes ‘ energy time series. Based on this preliminary work, ocean-bottom imperativeness variation appears to be a promise run for further inquiry. Keywords: ECCO Products Used: ECCO-KFSURL: https://www.mdpi.com/2072-4292/13/7/1242 Other URLs:
Inoue, Tomohiro; Ito, Yoshihiro; Wallace, Laura M.; Yoshikawa, Yutaka; Inazu, Daisuke; Garcia, Emmanuel Soliman M.; Muramoto, Tomoya; Webb, Spahr C.; Ohta, Kazuaki; Suzuki, Syuichi; Hino, Ryota (2021). Water Depth Dependence of Long-Range Correlation in Nontidal Variations in Seafloor Pressure, Geophysical Research Letters, 8 (48), 10.1029/2020GL092173. Title: Water Depth Dependence of Long-Range Correlation in Nontidal Variations in Seafloor atmospheric pressure Type: Journal article Publication: Geophysical Research Letters Author(s): Inoue, Tomohiro ; Ito, Yoshihiro ; Wallace, Laura M. ; Yoshikawa, Yutaka ; Inazu, Daisuke ; Garcia, Emmanuel Soliman M. ; Muramoto, Tomoya ; Webb, Spahr C. ; Ohta, Kazuaki ; Suzuki, Syuichi ; Hino, Ryota Year: 2021 Formatted Citation: Inoue, T. and Coauthors, 2021 : Water Depth Dependence of Long-Range Correlation in Nontidal Variations in Seafloor Pressure. Geophys. Res. Lett., 48 ( 8 ), doi:10.1029/2020GL092173 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://onlinelibrary.wiley.com/doi/10.1029/2020GL092173 Other URLs:
Huang, Shaojian; Zhang, Yanxu (2021). Interannual Variability of Air-Sea Exchange of Mercury in the Global Ocean: The “Seesaw Effect” in the Equatorial Pacific and Contributions to the Atmosphere, Environmental Science & Technology, acs.est.1c00691, 10.1021/acs.est.1c00691. Title: Interannual Variability of Air-Sea Exchange of Mercury in the Global Ocean : The “ Seesaw Effect ” in the Equatorial Pacific and Contributions to the Atmosphere Type: Journal article Publication: Environmental Science & Technology Author(s): Huang, Shaojian ; Zhang, Yanxu Year: 2021 Formatted Citation: Huang, S., and Y. Zhang, 2021 : Interannual Variability of Air-Sea Exchange of Mercury in the Global Ocean : The “ Seesaw Effect ” in the Equatorial Pacific and Contributions to the Atmosphere. Environmental Science & Technology, acs.est.1c00691, doi:10.1021/acs.est.1c00691 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://pubs.acs.org/doi/10.1021/acs.est.1c00691 Other URLs:
Boatwright, Victoria; Fox-Kemper, Baylor (2021). Biological and Physical Interactions at Local Ocean Scales: Coupled Systems, Georgetown Scientific Research Journal, 5-17, 10.48091/DNPR7287. Title: Biological and Physical Interactions at Local Ocean Scales : Coupled Systems Type: Journal article Publication: Georgetown Scientific Research Journal Author(s): Boatwright, Victoria ; Fox-Kemper, Baylor Year: 2021 Formatted Citation: Boatwright, V., and B. Fox-Kemper, 2021 : biological and physical Interactions at Local Ocean Scales : Coupled Systems. Georgetown Scientific Research Journal, 5-17, doi:10.48091/DNPR7287 Abstract: Physical and biogeochemical processes that influence primary production set Earth ‘s carbon paper and estrus budgets. While these processes have long been the focus of research, high resolution models to investigate local phenomena have only recently been developed, and bipartisan coupling between oceanic physics and biology is only recently getting attention due to computational power. With these newfangled developments, it is potential to study the mechanisms through which these processes interact at both ball-shaped and regional scales to shape Earth ‘s climate, which is the finish of this paper. This composition introduces oceanic physical phenomenon at submesoscales to ball-shaped scales -like blend layer depth and churning structures-and the kinship of smaller plate events with biological factors. It discusses the implications of these relationships for elementary production. After an introductory explanation of turbulence, chiefly in the human body of eddies and fronts, and the effects of home instability and surface force, this newspaper emphasizes the contributions of those phenomena ( turbulence, inner instability, and open wedge ) to upright velocities and the influence of vertical transport on biology. following, it introduces biogeochemical feedbacks, concerning both large scale population dynamics and increase absorption of radiation at the submesoscale, to consider their impacts on forcible dynamics and regional climates. last, the wallpaper compiles equations of irradiance and variables of meaning, suggesting terms that could produce meaningful responses to variations in phytoplankton populations. The paper highlights the importance of understanding physical-biogeochemical relationships and suggests directions for future research, particularly areas related to ball-shaped thaw or abrupt climate deepen. Keywords: ECCO Products Used: LLC_hiresURL: http://gsrjournal.org/index.php/home/article/view/5 Other URLs:
Leng, Hengling; Spall, Michael A.; Pickart, Robert S.; Lin, Peigen; Bai, Xuezhi (2021). Origin and Fate of the Chukchi Slope Current Using a Numerical Model and In-situ Data, Journal of Geophysical Research: Oceans, 10.1029/2021JC017291. Title: Origin and Fate of the Chukchi Slope Current Using a numeral Model and In-situ Data Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Leng, Hengling ; Spall, Michael A. ; Pickart, Robert S. ; Lin, Peigen ; Bai, Xuezhi Year: 2021 Formatted Citation: Leng, H., M. A. Spall, R. S. Pickart, P. Lin, and X. Bai, 2021 : lineage and Fate of the Chukchi Slope Current Using a numerical Model and In-situ Data. J. Geophys. Res. Ocean., doi:10.1029/2021JC017291 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://onlinelibrary.wiley.com/doi/10.1029/2021JC017291 Other URLs:
Duda, Timothy F.; Zhang, Weifeng Gordon; Lin, Ying-Tsong (2021). Effects of Pacific Summer Water layer variations and ice cover on Beaufort Sea underwater sound ducting, The Journal of the Acoustical Society of America, 4 (149), 2117-2136, 10.1121/10.0003929. Title: Effects of Pacific Summer Water layer variations and frost cover on Beaufort Sea subaqueous sound ducting Type: Journal article Publication: The Journal of the Acoustical Society of America Author(s): Duda, Timothy F. ; Zhang, Weifeng Gordon ; Lin, Ying-Tsong Year: 2021 Formatted Citation: Duda, T. F., W. G. Zhang, and Y. Lin, 2021 : Effects of Pacific Summer Water layer variations and internal-combustion engine cover on Beaufort Sea submerged healthy ducting. The Journal of the Acoustical Society of America, 149 ( 4 ), 2117-2136, doi:10.1121/10.0003929 Abstract: Keywords: ECCO Products Used: ASTEURL: https://asa.scitation.org/doi/10.1121/10.0003929 Other URLs:
Liu, Hao; Li, Shujiang; Wei, Zexun (2021). Interannual variability in the subduction of the South Atlantic subtropical underwater, Climate Dynamics, 10.1007/s00382-021-05758-0. Title: Interannual unevenness in the subduction of the South Atlantic subtropical subaqueous Type: Journal article Publication: Climate Dynamics Author(s): Liu, Hao ; Li, Shujiang ; Wei, Zexun Year: 2021 Formatted Citation: Liu, H., S. Li, and Z. Wei, 2021 : Interannual variability in the subduction of the South Atlantic subtropical submerged. Climate Dynamics, doi:10.1007/s00382-021-05758-0 Abstract: The South Atlantic subtropical subaqueous ( STUW ) is a high-salinity water mass formed by subduction within the subtropical coil. It is a major component of the subtropical cell and affects stratification in the downstream management due to its high brininess characteristics. Understanding the interannual unevenness in STUW subduction is essential for quantifying the impingement of subtropical variability on the tropical Atlantic. Using the output from the ocean state estimate of the Consortium for Estimating the Circulation and Climate of the Ocean ( ECCO ), this study investigates the interannual variability in STUW subduction from 1992 to 2016. We find that heat fluxes, wind stress, and wind stress coil cause interannual unevenness in the subduction rate. Heat fluxes over the subduction area modulate the sea airfoil buoyancy and regulate the shuffle layer depth ( MLD ) during its deepening and shallow phases. additionally, the wind stress coil and zonal hoist try can modulate the size of the subduction sphere by regulating the probability of particles entrained into the mix layer within 1 year of tracing. This analysis evaluates the determine of subtropical wind instrument patterns on the South Atlantic subsurface high-salinity water bulk, highlighting the impact of hotness and wind on the interannual changes in the oceanic component of the hydrological hertz. Keywords: ECCO Products Used: ECCO-V4URL: https://link.springer.com/10.1007/s00382-021-05758-0 Other URLs:
Li, Mingting; Yuan, Dongliang; Gordon, Arnold L.; Gruenburg, Laura K.; Li, Xiang; Li, Rui; Yin, Xueli; Yang, Ya; Corvianatie, Corry; Wei, Jun; Yang, Song (2021). A Strong Sub-Thermocline Intrusion of the North Equatorial Subsurface Current Into the Makassar Strait in 2016-2017, Geophysical Research Letters, 8 (48), 10.1029/2021GL092505. Title: A strong Sub-Thermocline intrusion of the North Equatorial Subsurface Current Into the Makassar Strait in 2016-2017 Type: Journal article Publication: Geophysical Research Letters Author(s): Li, Mingting ; Yuan, Dongliang ; Gordon, Arnold L. ; Gruenburg, Laura K. ; Li, Xiang ; Li, Rui ; Yin, Xueli ; Yang, Ya ; Corvianatie, Corry ; Wei, Jun ; Yang, Song Year: 2021 Formatted Citation: Li, M. and Coauthors, 2021 : A strong Sub-Thermocline intrusion of the North Equatorial Subsurface Current Into the Makassar Strait in 2016-2017. Geophys. Res. Lett., 48 ( 8 ), doi:10.1029/2021GL092505 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://onlinelibrary.wiley.com/doi/10.1029/2021GL092505 Other URLs:
Xu, Lixiao; Ding, Yang; Xie, Shang-Ping (2021). Buoyancy and Wind Driven Changes in Subantarctic Mode Water During 2004-2019, Geophysical Research Letters, 8 (48), 10.1029/2021GL092511. Title: Buoyancy and Wind Driven Changes in Subantarctic Mode Water During 2004-2019 Type: Journal article Publication: Geophysical Research Letters Author(s): Xu, Lixiao ; Ding, Yang ; Xie, Shang-Ping Year: 2021 Formatted Citation: Xu, L., Y. Ding, and S. Xie, 2021 : buoyancy and Wind Driven Changes in Subantarctic Mode Water During 2004-2019. Geophys. Res. Lett., 48 ( 8 ), doi:10.1029/2021GL092511 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/10.1029/2021GL092511 Other URLs:
Zhai, Yujia; Yang, Jiayan; Wan, Xiuquan (2021). Cross-Equatorial Anti-symmetry in the Seasonal Transport of the Western Boundary Current in the Atlantic Ocean, Journal of Geophysical Research: Oceans, 10.1029/2021JC017184. Title: Cross-Equatorial Anti-symmetry in the Seasonal Transport of the Western Boundary Current in the Atlantic Ocean Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Zhai, Yujia ; Yang, Jiayan ; Wan, Xiuquan Year: 2021 Formatted Citation: Zhai, Y., J. Yang, and X. Wan, 2021 : Cross-Equatorial Anti-symmetry in the Seasonal Transport of the Western Boundary Current in the Atlantic Ocean. J. Geophys. Res. Ocean., doi:10.1029/2021JC017184 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/10.1029/2021JC017184 Other URLs:
Nagura, Motoki (2021). Spiciness Anomalies of Subantarctic Mode Water in the South Indian Ocean, Journal of Climate, 10 (34), 3927-3953, 10.1175/JCLI-D-20-0482.1. Title: Spiciness Anomalies of Subantarctic Mode Water in the South amerind Ocean Type: Journal article Publication: Journal of Climate Author(s): Nagura, Motoki Year: 2021 Formatted Citation: Nagura, M., 2021 : spiciness Anomalies of Subantarctic Mode Water in the South amerind Ocean. J. Clim., 34 ( 10 ), 3927-3953, doi:10.1175/JCLI-D-20-0482.1 Abstract: This cogitation investigates spreading and generation of gaminess anomalies of the Subantarctic Mode Water ( SAMW ) located on 26.6 to 26.8 σθ in the south indian Ocean, using in situ hydrographic observations, satellite measurements, reanalysis datasets, and numerical mannequin end product. The amplitude of gaminess anomalies is about 0.03 psu or 0.13°C and tends to be big along the streamline of the subtropical coil, whose upriver end is the outcrop region confederacy of Australia. The speed of go around is comparable to that of the mean stream, and it takes about a decade for a gaminess anomaly in the outcrop area to spread into the inside up to Madagascar. In the outcrop region, interannual variability in mix layer temperature and brininess tends to be density cover, which indicates that Eulerian temperature or salt changes account for the generation of isopycnal gaminess anomalies. It is known that winter temperature and salt in the open mix layer determine the temperature and brininess relationship of a subducted urine mass. Considering this, the mix layer hotness budget in the outcrop region is estimated based on the concept of effective shuffle layer astuteness, the result of which shows the primary contribution from horizontal advection. The contributions from Ekman and geostrophic currents are comparable. Ekman menstruate advection is caused by zonal wind stress anomalies and the leave meridional Ekman current anomalies, as is pointed out by a previous analyze. Geostrophic speed is decomposed into large-scale and mesoscale variability, both of which importantly contribute to horizontal advection. Keywords: ECCO Products Used: ECCO-V4URL: https://journals.ametsoc.org/view/journals/clim/34/10/JCLI-D-20-0482.1.xml Other URLs:
Wu, Yang; Wang, Zhaomin; Liu, Chengyan (2021). Impacts of Changed Ice-Ocean Stress on the North Atlantic Ocean: Role of Ocean Surface Currents, Frontiers in Marine Science (8), 10.3389/fmars.2021.628892. Title: Impacts of Changed Ice-Ocean Stress on the North Atlantic Ocean : function of Ocean Surface Currents Type: Journal article Publication: Frontiers in Marine Science Author(s): Wu, Yang ; Wang, Zhaomin ; Liu, Chengyan Year: 2021 Formatted Citation: Wu, Y., Z. Wang, and C. Liu, 2021 : Impacts of Changed Ice-Ocean Stress on the North Atlantic Ocean : function of Ocean Surface Currents. Frontiers in Marine Science, 8, doi:10.3389/fmars.2021.628892 Abstract: The importance of considering ocean coat currents in ice-ocean stress calculation in the North Atlantic Ocean and Arctic sea ice is investigated for the foremost clock using a ball-shaped coupled ocean-sea ice model. Considering ocean come on currents in ice-ocean stress calculation weakens the ocean surface tension and Ekman pump by about 7.7 and 15 % over the North Atlantic Ocean, respectively. It besides importantly reduces the mechanical energy stimulation to ageostrophic and geostrophic currents, and weakens the mean and eddy kinetic energy by reducing the energy conversion rates of baroclinic and barotropic pathways. furthermore, the forte of the Atlantic Meridional Overturning Circulation ( AMOC ), the Nordic Seas MOC, and the North Atlantic subpolar coil are found to be reduced well ( by 14.3, 31.0, and 18.1 %, respectively ). The hurt AMOC leads to a 0.12 PW reduction in maximum northbound ocean hotness transport, resulting in a reduce open heat loss and lower sea come on temperature over the North Atlantic Ocean. This reduction besides leads to a shrink in sea ice extent and an attenuation of sea ice thickness. These findings highlight the importance of properly considering both the geostrophic and ageostrophic components of ocean surface currents in ice-ocean stress calculation on ocean circulation and climate studies. Keywords: ECCO Products Used: ECCO2URL: https://www.frontiersin.org/articles/10.3389/fmars.2021.628892/full Other URLs:
Chen, Shuiming; Qiu, Bo (2021). Sea Surface Height Variability in the 30-120km Wavelength Band from Altimetry Along-track Observations, Journal of Geophysical Research: Oceans, 10.1029/2021JC017284. Title: Sea Surface Height Variability in the 30-120km Wavelength Band from Altimetry Along-track Observations Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Chen, Shuiming ; Qiu, Bo Year: 2021 Formatted Citation: Chen, S., and B. Qiu, 2021 : Sea Surface Height Variability in the 30-120km Wavelength Band from Altimetry Along-track Observations. J. Geophys. Res. Ocean., doi:10.1029/2021JC017284 Abstract: Keywords: ECCO Products Used: LLC_hiresURL: https://onlinelibrary.wiley.com/doi/10.1029/2021JC017284 Other URLs:
Narvekar, Jayu; Roy Chowdhury, Riyanka; Gaonkar, Diksha; Kumar, P. K. Dinesh; Prasanna Kumar, S. (2021). Observational evidence of stratification control of upwelling and pelagic fishery in the eastern Arabian Sea, Scientific Reports, 1 (11), 7293, 10.1038/s41598-021-86594-4. Title: Observational testify of stratification control of upwelling and oceanic fishery in the easterly Arabian Sea Type: Journal article Publication: Scientific Reports Author(s): Narvekar, Jayu ; Roy Chowdhury, Riyanka ; Gaonkar, Diksha ; Kumar, P. K. Dinesh ; Prasanna Kumar, S. Year: 2021 Formatted Citation: Narvekar, J., R. Roy Chowdhury, D. Gaonkar, P. K. D. Kumar, and S. Prasanna Kumar, 2021 : experimental tell of stratification control condition of upwelling and oceanic fishery in the eastern Arabian Sea. Scientific Reports, 11 ( 1 ), 7293, doi:10.1038/s41598-021-86594-4 Abstract: Upwelling is a physical phenomenon that occurs globally along the easterly limit of the ocean and supports pelagic fishery which is an crucial reference of protein for the coastal population. Though upwelling and associated humble oceanic fishery along the eastern Arabian Sea ( EAS ) is known to exist at least for the by six decades, our understanding of the factors controlling them are inactive baffling. Based on observation and data analysis we hypothesize that upwelling in the EAS during 2017 was modulated by freshwater-induced stratification. To validate this guess, we examined 17 years of data from 2001 and show that inter-annual unevenness of fresh water inflow indeed controls the upwelling in the EAS through stratification, a mechanism so far unexplored. The upper ocean stratification in act is regulated by the fresh water system inflow through a combination of precipitation and river overflow. We further show that the oil sard which is one of the dominant pisces of the minor oceanic fishery of the EAS varied inversely with stratification. Our cogitation for the first time underscored the function of fresh water inflow in regulating the coastal upwelling and upper ocean stratification controlling the regional oceanic fishery of the EAS. Keywords: ECCO Products Used: ECCO2URL: http://www.nature.com/articles/s41598-021-86594-4 Other URLs:
Feng, Yang; Menemenlis, Dimitris; Xue, Huijie; Zhang, Hong; Carroll, Dustin; Du, Yan; Wu, Hui (2021). Improved representation of river runoff in Estimating the Circulation and Climate of the Ocean Version 4 (ECCOv4) simulations: implementation, evaluation, and impacts to coastal plume regions, Geoscientific Model Development, 3 (14), 1801-1819, 10.5194/gmd-14-1801-2021. Title: Improved representation of river overflow in Estimating the Circulation and Climate of the Ocean Version 4 ( ECCOv4 ) simulations : implementation, evaluation, and impacts to coastal overcharge regions Type: Journal article Publication: Geoscientific Model Development Author(s): Feng, Yang ; Menemenlis, Dimitris ; Xue, Huijie ; Zhang, Hong ; Carroll, Dustin ; Du, Yan ; Wu, Hui Year: 2021 Formatted Citation: Feng, Y., D. Menemenlis, H. Xue, H. Zhang, D. Carroll, Y. Du, and H. Wu, 2021 : Improved representation of river runoff in Estimating the Circulation and Climate of the Ocean Version 4 ( ECCOv4 ) simulations : execution, evaluation, and impacts to coastal overcharge regions. Geoscientific Model Development, 14 ( 3 ), 1801-1819, doi:10.5194/gmd-14-1801-2021 Abstract: Keywords: ECCO Products Used: ECCO-V4 ; ECCO2 ; LLC270URL: https://gmd.copernicus.org/articles/14/1801/2021/ Other URLs:
Li, Junde; Babanin, Alexander V.; Liu, Qingxiang; Voermans, Joey J.; Heil, Petra; Tang, Youmin (2021). Effects of Wave-Induced Sea Ice Break-Up and Mixing in a High-Resolution Coupled Ice-Ocean Model, Journal of Marine Science and Engineering, 4 (9), 365, 10.3390/jmse9040365. Title: Effects of Wave-Induced Sea Ice Break-Up and Mixing in a High-Resolution Coupled Ice-Ocean Model Type: Journal article Publication: Journal of Marine Science and Engineering Author(s): Li, Junde ; Babanin, Alexander V. ; Liu, Qingxiang ; Voermans, Joey J. ; Heil, Petra ; Tang, Youmin Year: 2021 Formatted Citation: Li, J., A. V. Babanin, Q. Liu, J. J. Voermans, P. Heil, and Y. Tang, 2021 : Effects of Wave-Induced Sea Ice Break-Up and Mixing in a High-Resolution Coupled Ice-Ocean Model. Journal of Marine Science and Engineering, 9 ( 4 ), 365, doi:10.3390/jmse9040365 Abstract: Arctic ocean ice plays a vital character in modulating the global climate. In the most holocene decades, the rapid decline of the Arctic summer sea ice breed has exposed increasing areas of ice-free ocean, with sufficient fetch for waves to develop. This has highlighted the complex and not well-understood nature of wave-ice interactions, requiring modeling feat. here, we introduce two mugwump parameterizations in a high-resolution coupled ice-ocean model to investigate the effects of wave-induced ocean frosting break-up ( through albedo change ) and mixing on the Arctic ocean ice simulation. Our results show that wave-induced ocean internal-combustion engine break-up leads to increases in sea internal-combustion engine concentration and thickness in the Bering Sea, the Baffin Sea and the Barents Sea during the ice growth season, but accelerates the sea methamphetamine melt in the Chukchi Sea and the East Siberian Sea in summer. Further, wave-induced shuffle can decelerate the sea ice formation in winter and the sea frosting melt in summer by exchanging the inflame fluxes between the open and subsurface layer. As our service line model underestimates sea ice cover in winter and produces more ocean ice in summer, wave-induced ocean ice break-up plays a incontrovertible function in improving the sea ice model. This study provides two mugwump parameterizations to immediately include the wave effects into the sea ice models, with crucial implications for the future sea ice model development. Keywords: ECCO Products Used: ECCO2URL: https://www.mdpi.com/2077-1312/9/4/365 Other URLs:
Boland, Emma J. D.; Jones, Daniel C.; Meijers, Andrew J. S.; Forget, Gael; Josey, Simon A. (2021). Local and remote influences on the heat content of Southern Ocean mode water formation regions., Journal of Geophysical Research: Oceans, 10.1029/2020JC016585. Title: Local and outside influences on the inflame content of southern Ocean manner water formation regions. Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Boland, Emma J. D. ; Jones, Daniel C. ; Meijers, Andrew J. S. ; Forget, Gael ; Josey, Simon A. Year: 2021 Formatted Citation: Boland, E. J. D., D. C. Jones, A. J. S. Meijers, G. Forget, and S. A. Josey, 2021 : local and outback influences on the heat contentedness of southerly Ocean manner water formation regions. J. Geophys. Res. Ocean., doi:10.1029/2020JC016585 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/10.1029/2020JC016585 Other URLs:
Zhao, Mengnan; Ponte, Rui M.; Wang, Ou; Lumpkin, Rick (2021). Using Drifter Velocity Measurements to Assess and Constrain Coarse-Resolution Ocean Models, Journal of Atmospheric and Oceanic Technology, 10.1175/JTECH-D-20-0159.1. Title: Using Drifter Velocity Measurements to Assess and Constrain Coarse-Resolution Ocean Models Type: Journal article Publication: Journal of Atmospheric and Oceanic Technology Author(s): Zhao, Mengnan ; Ponte, Rui M. ; Wang, Ou ; Lumpkin, Rick Year: 2021 Formatted Citation: Zhao, M., R. M. Ponte, O. Wang, and R. Lumpkin, 2021 : Using Drifter Velocity Measurements to Assess and Constrain Coarse-Resolution Ocean Models. Journal of Atmospheric and Oceanic Technology, doi:10.1175/JTECH-D-20-0159.1 Abstract: properly fitting ocean models to observations is all-important for improving model performance and understanding ocean dynamics. Near-surface speed measurements from the Global Drifter Program ( GDP ) contain valuable information about amphetamine ocean circulation and air-sea fluxes on versatile space and time scales. This study explores whether GDP measurements can be used for usefully constraining the come on circulation from coarse-resolution ocean models, using ball-shaped solutions produced by the consortium for Estimating the Circulation and Climate of the Ocean ( ECCO ) as an example. To address this problem, a careful examination of speed data errors is required. Comparisons between an ECCO mannequin model, performed without any datum constraints, and GDP and Ocean Surface Current Analyses Real-time ( OSCAR ) speed data, over the menstruation 1992-2017, reveal considerable differences in magnitude and radiation pattern. These comparisons are used to estimate GDP data errors in the context of the time-mean and time-variable surface circulations. Both instrumental errors and errors associated with limitations in model physics and settlement ( representation errors ) are considered. Given the estimated model-data differences, errors and signal-to-noise ratio ratios, our results indicate that constraining ocean state estimates to GDP can have a significant impact on the ECCO large-scale time-mean come on circulation over extensive areas. impingement of GDP datum constraints on the ECCO time-variable circulation would be weaker and chiefly limited to low latitudes. representation errors contribute substantially to degrading the data impacts. Keywords: ECCO Products Used: ECCO-V4URL: https://journals.ametsoc.org/view/journals/atot/aop/JTECH-D-20-0159.1/JTECH-D-20-0159.1.xml Other URLs:
Li, Qiang; Zhou, Lei; Xie, Lingling (2021). Seasonal and Interannual Variability of EAPE in the South China Sea Derived from ECCO2 Data from 1997 to 2019, Water, 7 (13), 926, 10.3390/w13070926. Title: Seasonal and Interannual Variability of EAPE in the South China Sea Derived from ECCO2 Data from 1997 to 2019 Type: Journal article Publication: Water Author(s): Li, Qiang ; Zhou, Lei ; Xie, Lingling Year: 2021 Formatted Citation: Li, Q., L. Zhou, and L. Xie, 2021 : seasonal and Interannual Variability of EAPE in the South China Sea Derived from ECCO2 Data from 1997 to 2019. Water, 13 ( 7 ), 926, doi:10.3390/w13070926 Abstract: Using Estimating the Circulation and Climate of the Ocean ( phase 2, ECCO2 ) reanalysis products from 1997 to 2019, this study analyzes the spatiotemporal features of the eddy available gravitational likely energy ( EAPE ) in the South China Sea ( SCS ). The results indicate that the EAPE accounts for 64 % of the entire APE in the SCS with the climatological think of. The 2D EAPE distribution images manifest testify high-value regions which are by and large reproducible with the eddy distributions. One region is located around 21° N and west of the Luzon Strait, the second around 17° N and near Luzon Island, and the third off the Vietnam slide. In the region around 21° N and 17° N, both the seasonal worker unevenness and the interannual variability associated with the El Niño-Southern Oscillation ( ENSO ) are significant. Off the Vietnam coast, the EAPE is closely associated with coastal processes which heavy depend on the seasonal monsoon, the El Nino/La Nina events, and the indian Ocean Dipole ( IOD ). The results provide new insights into SCS dynamics from the charge of scene of ocean energy sources. Keywords: ECCO Products Used: ECCO2URL: https://www.mdpi.com/2073-4441/13/7/926 Other URLs:
Tesdal, Jan-Erik; Abernathey, Ryan P. (2021). Drivers of Local Ocean Heat Content Variability in ECCOv4, Journal of Climate, 8 (34), 2941-2956, 10.1175/JCLI-D-20-0058.1. Title: Drivers of Local Ocean Heat Content Variability in ECCOv4 Type: Journal article Publication: Journal of Climate Author(s): Tesdal, Jan-Erik ; Abernathey, Ryan P. Year: 2021 Formatted Citation: Tesdal, J., and R. P. Abernathey, 2021 : Drivers of Local Ocean Heat Content Variability in ECCOv4. J. Clim., 34 ( 8 ), 2941-2956, doi:10.1175/JCLI-D-20-0058.1 Abstract: Variation in upper-ocean estrus content is a critical divisor in understanding global climate variability. use temperature anomaly budgets in a two-decade-long physically consistent ocean state estimate ( ECCOv4r3 ; 1992-2015 ), we describe the libra between atmospheric coerce and ocean transport mechanisms for different astuteness horizons and at varying temporal and spatial resolutions. Advection dominates in the tropics, while forcing is most relevant at higher latitudes and in parts of the subtropics, but the balance of prevailing processes changes when integrating over greater depths and considering longer time scales. While forcing is shown to increase with coarse resoluteness, overall the heat budget balance between it and advection is signally insensitive to spatial scale. A novel perspective on global ocean heat capacity variability was made potential by combining unsupervised classification with a measure of temporal unevenness in heat budget terms to identify coherent dynamic regimes with exchangeable underlying mechanism, which are consistent with anterior research. The huge majority of the ocean includes significant contributions by both forcing and advection. however advection-driven regions were identified that concur with strong currents, such as western boundary currents, the Antarctic Circumpolar Current, and the tropics, while forcing-driven regions were defined by shallower winter desegregate layers and fallible speed fields. This designation of comprehensive dynamic regimes and the sensitivity of the ocean hotness budget analysis to exact resolution ( for unlike depth horizons and at varying temporal and spatial resolutions ) should provide a useful predilection for future studies of ocean heat content unevenness in specific ocean regions. Keywords: ECCO Products Used: ECCO-V4URL: https://journals.ametsoc.org/view/journals/clim/34/8/JCLI-D-20-0058.1.xml Other URLs:
Yool, Andrew; Palmiéri, Julien; Jones, Colin G.; de Mora, Lee; Kuhlbrodt, Till; Popova, Ekatarina E.; Nurser, A. J. George; Hirschi, Joel; Blaker, Adam T.; Coward, Andrew C.; Blockley, Edward W.; Sellar, Alistair A. (2021). Evaluating the physical and biogeochemical state of the global ocean component of UKESM1 in CMIP6 historical simulations, Geoscientific Model Development, 6 (14), 3437-3472, 10.5194/gmd-14-3437-2021. Title: Evaluating the physical and biogeochemical state of matter of the global ocean component of UKESM1 in CMIP6 historical simulations Type: Journal article Publication: Geoscientific Model Development Author(s): Yool, Andrew ; Palmiéri, Julien ; Jones, Colin G. ; de Mora, Lee ; Kuhlbrodt, Till ; Popova, Ekatarina E. ; Nurser, A. J. George ; Hirschi, Joel ; Blaker, Adam T. ; Coward, Andrew C. ; Blockley, Edward W. ; Sellar, Alistair A. Year: 2021 Formatted Citation: Yool, A. and Coauthors, 2021 : Evaluating the physical and biogeochemical state of the ball-shaped ocean component of UKESM1 in CMIP6 diachronic simulations. Geoscientific Model Development, 14 ( 6 ), 3437-3472, doi:10.5194/gmd-14-3437-2021 Abstract: Abstract. The ocean plays a key role in modulating the climate of the Earth arrangement ( ES ). At the stage time it is besides a major slump both for the carbon paper dioxide ( CO2 ) released by human activities and for the excess hotness driven by the resulting atmospheric greenhouse effect. Understanding the ocean ‘s function in these processes is critical for model projections of future change and its potential impacts on human societies. A necessary beginning step in assessing the credibility of such future projections is an evaluation of their operation against the present department of state of the ocean. here we use a range of experimental fields to validate the physical and biogeochemical performance of the ocean component of UKESM1, a newfangled earth system model ( ESM ) for CMIP6 built upon the HadGEM3-GC3.1 physical climate exemplar. analysis focuses on the reality of the ocean ‘s physical department of state and circulation, its key elementary cycles, and its marine productiveness. UKESM1 generally performs well across a across-the-board spectrum of properties, but it exhibits a number of luminary biases. physically, these include a ball-shaped quick bias inherited from mannequin spin-up, excess northern sea ice but insufficient southern sea ice and sluggish interior circulation. Biogeochemical biases found include shallow remineralization of sinking organic matter, excessive iron stress in regions such as the equatorial Pacific, and by and large lower surface alkalinity that results in decrease coat and interior dissolved inorganic carbon paper ( DIC ) concentrations. The mechanism driving these biases are explored to identify consequences for the behavior of UKESM1 under future climate switch scenarios and avenues for model improvement. ultimately, across samara biogeochemical properties, UKESM1 improves in performance relative to its CMIP5 harbinger and performs well alongside its boyfriend members of the CMIP6 ensemble. Keywords: ECCO Products Used: ECCO-V4URL: https://gmd.copernicus.org/articles/14/3437/2021/ Other URLs:
Follett, Christopher L.; Dutkiewicz, Stephanie; Forget, Gael; Cael, B. B.; Follows, Michael J. (2021). Moving ecological and biogeochemical transitions across the North Pacific, Limnology and Oceanography, lno.11763, 10.1002/lno.11763. Title: Moving ecological and biogeochemical transitions across the North Pacific Type: Journal article Publication: Limnology and Oceanography Author(s): Follett, Christopher L. ; Dutkiewicz, Stephanie ; Forget, Gael ; Cael, B. B. ; Follows, Michael J. Year: 2021 Formatted Citation: Follett, C. L., S. Dutkiewicz, G. Forget, B. B. Cael, and M. J. Follows, 2021 : Moving ecological and biogeochemical transitions across the North Pacific. Limnology and Oceanography, lno.11763, doi:10.1002/lno.11763 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/10.1002/lno.11763 Other URLs:
Zakem, Emily J.; Lauderdale, Jonathan M.; Schlitzer, Reiner; Follows, Michael J. (2021). A Flux-Based Threshold for Anaerobic Activity in the Ocean, Geophysical Research Letters, 5 (48), 10.1029/2020GL090423. Title: A Flux-Based Threshold for Anaerobic Activity in the ocean Type: Journal article Publication: Geophysical Research Letters Author(s): Zakem, Emily J. ; Lauderdale, Jonathan M. ; Schlitzer, Reiner ; Follows, Michael J. Year: 2021 Formatted Citation: Zakem, E. J., J. M. Lauderdale, R. Schlitzer, and M. J. Follows, 2021 : A Flux-Based Threshold for Anaerobic Activity in the Ocean. Geophys. Res. Lett., 48 ( 5 ), doi:10.1029/2020GL090423 Abstract: Keywords: ECCO Products Used: OCCAURL: https://onlinelibrary.wiley.com/doi/10.1029/2020GL090423 Other URLs:
Kostov, Yavor; Johnson, Helen L.; Marshall, David P.; Heimbach, Patrick; Forget, Gael; Holliday, N. Penny; Lozier, M. Susan; Li, Feili; Pillar, Helen R.; Smith, Timothy (2021). Distinct sources of interannual subtropical and subpolar Atlantic overturning variability, Nature Geoscience, 10.1038/s41561-021-00759-4. Title: Distinct sources of interannual subtropical and subpolar Atlantic overthrow variability Type: Journal article Publication: Nature Geoscience Author(s): Kostov, Yavor ; Johnson, Helen L. ; Marshall, David P. ; Heimbach, Patrick ; Forget, Gael ; Holliday, N. Penny ; Lozier, M. Susan ; Li, Feili ; Pillar, Helen R. ; Smith, Timothy Year: 2021 Formatted Citation: Kostov, Y. and Coauthors, 2021 : discrete sources of interannual subtropical and subpolar Atlantic revoke unevenness. nature Geoscience, doi:10.1038/s41561-021-00759-4 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: http://www.nature.com/articles/s41561-021-00759-4 Other URLs:
Rousselet, Louise; Cessi, Paola; Forget, Gael (2021). Coupling of the mid-depth and abyssal components of the global overturning circulation according to a state estimate, Science Advances, 21 (7), eabf5478, 10.1126/sciadv.abf5478. Title: Coupling of the mid-depth and abyssal components of the ball-shaped overturn circulation according to a state estimate Type: Journal article Publication: Science Advances Author(s): Rousselet, Louise ; Cessi, Paola ; Forget, Gael Year: 2021 Formatted Citation: Rousselet, L., P. Cessi, and G. Forget, 2021 : yoke of the mid-depth and abysmal components of the global revolutionize circulation according to a state appraisal. skill Advances, 7 ( 21 ), eabf5478, doi:10.1126/sciadv.abf5478 Abstract: Using velocities from a state appraisal, Lagrangian analysis maps the ball-shaped routes of North Atlantic Deep Water ( NADW ) exiting the Atlantic and reentering the upper branch of the Atlantic Meridional Overturning Circulation ( AMOC ). virtual particle trajectories followed for 8100 years highlight an upper road ( 32 % ) and a lower route ( 68 % ). The latter samples σ2 > 37.07 and is further divided into subpolar ( 20 % ) and abyssal cells ( 48 % ). Particles in the abyssal cell detour into the abysmal North Pacific before upwelling in the southern Ocean. NADW preferentially upwells north of 33°S ( 67 % ). total diapycnal transformations are largest in the lower route but of comparable magnitudes in the upper path, challenging its previous characterization as “ adiabatic. ” typical theodolite times are 300, 700, and 3600 years for the upper berth route, subpolar, and abyssal cells, respectively. The AMOC imports brininess into the Atlantic, indicating its potential instability to high-latitude fresh water perturbations. Keywords: ECCO Products Used: ECCO-V4URL: https://advances.sciencemag.org/lookup/doi/10.1126/sciadv.abf5478 Other URLs:
Stanley, Geoffrey J.; McDougall, Trevor J.; Barker, Paul M. (2021). Algorithmic Improvements to Finding Approximately Neutral Surfaces, Journal of Advances in Modeling Earth Systems, 5 (13), 10.1029/2020MS002436. Title: Algorithmic Improvements to Finding approximately inert Surfaces Type: Journal article Publication: Journal of Advances in Modeling Earth Systems Author(s): Stanley, Geoffrey J. ; McDougall, Trevor J. ; Barker, Paul M. Year: 2021 Formatted Citation: Stanley, G. J., T. J. McDougall, and P. M. Barker, 2021 : algorithmic Improvements to Finding approximately neutral Surfaces. Journal of Advances in Modeling Earth Systems, 13 ( 5 ), doi:10.1029/2020MS002436 Abstract: Keywords: ECCO Products Used: ECCO2 ; OCCAURL: https://onlinelibrary.wiley.com/doi/10.1029/2020MS002436 Other URLs:
Kersalé, M.; Meinen, C. S.; Perez, R. C.; Piola, A. R.; Speich, S.; Campos, E. J. D.; Garzoli, S. L.; Ansorge, I.; Volkov, D. L.; Le Hénaff, M.; Dong, S.; Lamont, T.; Sato, O. T.; van den Berg, M. (2021). Multi-Year Estimates of Daily Heat Transport by the Atlantic Meridional Overturning Circulation at 34.5°S, Journal of Geophysical Research: Oceans, 5 (126), 10.1029/2020JC016947. Title: Multi-Year Estimates of Daily Heat Transport by the Atlantic Meridional Overturning Circulation at 34.5°S Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Kersalé, M. ; Meinen, C. S. ; Perez, R. C. ; Piola, A. R. ; Speich, S. ; Campos, E. J. D. ; Garzoli, S. L. ; Ansorge, I. ; Volkov, D. L. ; Le Hénaff, M. ; Dong, S. ; Lamont, T. ; Sato, O. T. ; van den Berg, M. Year: 2021 Formatted Citation: Kersalé, M. and Coauthors, 2021 : Multi-Year Estimates of Daily Heat Transport by the Atlantic Meridional Overturning Circulation at 34.5°S. J. Geophys. Res. Ocean., 126 ( 5 ), doi:10.1029/2020JC016947 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://onlinelibrary.wiley.com/doi/10.1029/2020JC016947 Other URLs:
Hamlington, B. D.; Frederikse, T.; Thompson, P. R.; Willis, J. K.; Nerem, R. S.; Fasullo, J. T. (2021). Past, Present, and Future Pacific Sea-Level Change, Earth’s Future, 4 (9), 10.1029/2020EF001839. Title: Past, Present, and Future Pacific Sea-Level Change Type: Journal article Publication: Earth ‘s future Author(s): Hamlington, B. D. ; Frederikse, T. ; Thompson, P. R. ; Willis, J. K. ; Nerem, R. S. ; Fasullo, J. T. Year: 2021 Formatted Citation: Hamlington, B. D., T. Frederikse, P. R. Thompson, J. K. Willis, R. S. Nerem, and J. T. Fasullo, 2021 : Past, Present, and Future Pacific Sea-Level Change. worldly concern ‘s Future, 9 ( 4 ), doi:10.1029/2020EF001839 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/10.1029/2020EF001839 Other URLs:
Loose, Nora; Heimbach, Patrick (2021). Leveraging Uncertainty Quantification to Design Ocean Climate Observing Systems, Journal of Advances in Modeling Earth Systems, 4 (13), 10.1029/2020MS002386. Title: Leveraging Uncertainty Quantification to Design Ocean Climate Observing Systems Type: Journal article Publication: Journal of Advances in Modeling Earth Systems Author(s): Loose, Nora ; Heimbach, Patrick Year: 2021 Formatted Citation: Loose, N., and P. Heimbach, 2021 : Leveraging Uncertainty Quantification to Design Ocean Climate Observing Systems. Journal of Advances in Modeling Earth Systems, 13 ( 4 ), doi:10.1029/2020MS002386 Abstract: Keywords: ECCO Products Used: ECCO-V4 ; adjointURL: https://onlinelibrary.wiley.com/doi/10.1029/2020MS002386 Other URLs:
Nguyen, An T.; Pillar, Helen; Ocaña, Victor; Bigdeli, Arash; Smith, Timothy A.; Heimbach, Patrick (2021). The Arctic Subpolar Gyre sTate Estimate: Description and Assessment of a Data-Constrained, Dynamically Consistent Ocean-Sea Ice Estimate for 2002-2017, Journal of Advances in Modeling Earth Systems, 5 (13), 10.1029/2020MS002398. Title: The Arctic Subpolar Gyre state estimate : description and Assessment of a Data-Constrained, Dynamically Consistent Ocean-Sea Ice Estimate for 2002-2017 Type: Journal article Publication: Journal of Advances in Modeling Earth Systems Author(s): Nguyen, An T. ; Pillar, Helen ; Ocaña, Victor ; Bigdeli, Arash ; Smith, Timothy A. ; Heimbach, Patrick Year: 2021 Formatted Citation: Nguyen, A. T., H. Pillar, V. Ocaña, A. Bigdeli, T. A. Smith, and P. Heimbach, 2021 : The Arctic Subpolar Gyre submit estimate : description and Assessment of a Data-Constrained, Dynamically Consistent Ocean-Sea Ice Estimate for 2002-2017. Journal of Advances in Modeling Earth Systems, 13 ( 5 ), doi:10.1029/2020MS002398 Abstract: Keywords: ECCO Products Used: ASTE ; ECCO-V4URL: https://onlinelibrary.wiley.com/doi/10.1029/2020MS002398 Other URLs:
Ponte, R. M.; Sun, Q.; Liu, C.; Liang, X. (2021). How salty is the global ocean: Weighing it all or tasting it a sip at a time?, Geophysical Research Letters, 10.1029/2021GL092935. Title: How piquant is the global ocean : Weighing it all or tasting it a sip at a meter ? Type: Journal article Publication: Geophysical Research Letters Author(s): Ponte, R. M. ; Sun, Q. ; Liu, C. ; Liang, X. Year: 2021 Formatted Citation: Ponte, R. M., Q. Sun, C. Liu, and X. Liang, 2021 : How piquant is the global ocean : Weighing it all or tasting it a sip at a prison term ? Geophys. Res. Lett., doi:10.1029/2021GL092935 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/10.1029/2021GL092935 Other URLs:
Patrizio, Casey R.; Thompson, David W.J. (2021). Quantifying the Role of Ocean Dynamics in Ocean Mixed-Layer Temperature Variability, Journal of Climate, 1-63, 10.1175/JCLI-D-20-0476.1. Title: Quantifying the Role of Ocean Dynamics in Ocean Mixed-Layer Temperature Variability Type: Journal article Publication: Journal of Climate Author(s): Patrizio, Casey R. ; Thompson, David W.J. Year: 2021 Formatted Citation: Patrizio, C. R., and D. W. Thompson, 2021 : Quantifying the Role of Ocean Dynamics in Ocean Mixed-Layer Temperature Variability. J. Clim., 1-63, doi:10.1175/JCLI-D-20-0476.1 Abstract: Understanding the character of the ocean in climate unevenness requires first base understanding the role of ocean dynamics in ocean assorted layer and therefore sea surface temperature unevenness. however, key aspects of the spatially and temporally vary contributions of ocean dynamics to such variability remain unclear. here, the authors quantify the contributions of ocean-dynamical processes to mixed layer temperature unevenness on monthly to multiannual timescales across the earth. To do thus, they use two complementary but distinct methods : 1 ) a method acting in which ocean heat transport is estimated directly from a state-of-the-art ocean country calculate spanning 1992-2015 ; and 2 ) a method in which it is estimated indirectly from observations between 1980-2017 and the energy budget of the mix level. The results extend previous studies by providing quantitative estimates of the role of ocean dynamics in mix layer temperature unevenness throughout the ball, across a range of timescales, in a range of available measurements, and using two unlike methods. coherent with former studies, both methods indicate that the ocean-dynamical contribution to blend layer temperature discrepancy is largest over western boundary currents, their eastbound extensions, and regions of equatorial upwelling. In contrast to previous studies, the results suggest that ocean dynamics reduce the discrepancy of Northern Hemisphere mix layer temperatures on timescales longer than a few years. Hence, in the global-mean, the fractional contribution of ocean dynamics to mixed layer temperature variability decreases at increasingly low-frequencies. Differences in the magnitude of the ocean-dynamical contribution based on the two methods highlight the critical want for better and continuous observations of the ocean blend layer. Keywords: ECCO Products Used: ECCO-V4URL: https://journals.ametsoc.org/view/journals/clim/aop/JCLI-D-20-0476.1/JCLI-D-20-0476.1.xml Other URLs:
Liu, Wei; Fedorov, Alexey (2021). Oceans and Rapid Climate Change. Title: Oceans and Rapid Climate Change Type: Book section Publication: Author(s): Liu, Wei ; Fedorov, Alexey Year: 2021 Formatted Citation: Liu, W., and A. Fedorov, 2021 : Oceans and Rapid Climate Change., 67-80, doi:10.1007/978-3-030-55012-7_6 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: http://link.springer.com/10.1007/978-3-030-55012-7_6 Other URLs:
Wood, Michael; Rignot, Eric; Fenty, Ian; An, Lu; Bjørk, Anders; van den Broeke, Michiel; Cai, Cilan; Kane, Emily; Menemenlis, Dimitris; Millan, Romain; Morlighem, Mathieu; Mouginot, Jeremie; Noël, Brice; Scheuchl, Bernd; Velicogna, Isabella; Willis, Josh K.; Zhang, Hong (2021). Ocean forcing drives glacier retreat in Greenland, Science Advances, 1 (7), eaba7282, 10.1126/sciadv.aba7282. Title: Ocean forcing drives glacier retreat in Greenland Type: Journal article Publication: Science Advances Author(s): Wood, Michael ; Rignot, Eric ; Fenty, Ian ; An, Lu ; Bjørk, Anders ; van den Broeke, Michiel ; Cai, Cilan ; Kane, Emily ; Menemenlis, Dimitris ; Millan, Romain ; Morlighem, Mathieu ; Mouginot, Jeremie ; Noël, Brice ; Scheuchl, Bernd ; Velicogna, Isabella ; Willis, Josh K. ; Zhang, Hong Year: 2021 Formatted Citation: Wood, M. and Coauthors, 2021 : Ocean forcing drives glacier retreat in Greenland. Science Advances, 7 ( 1 ), eaba7282, doi:10.1126/sciadv.aba7282 Abstract: The hideaway and acceleration of Greenland glaciers since the mid-1990s have been attributed to the enhance invasion of warm Atlantic Waters ( AW ) into fjords, but this assertion has not been quantitatively tested on a Greenland-wide basis or included in models. here, we investigate how AW influenced retreat at 226 marine-terminating glaciers using ocean model, remote sense, and in situ observations. We identify 74 glaciers in deep fjords with AW controlling 49 % of the mass loss that retreated when warming increased undersell by 48 %. conversely, 27 glaciers calving on shallow ridges and 24 in cold, shallow waters retreated little, contributing 15 % of the loss, while 10 glaciers retreated substantially following the crumble of several ice rink shelves. The retreat mechanisms remain undiagnosed at 87 glaciers without ocean and bathymetry data, which controlled 19 % of the loss. Ice sheet projections that exclude ocean-induced undercut may underestimate mass loss by at least a factor of 2. Keywords: ECCO Products Used: ECCO2 ; LLC270URL: https://advances.sciencemag.org/lookup/doi/10.1126/sciadv.aba7282 Other URLs:
Zheng, Fei; Sun, Yue; Yang, Qinghua; Mu, Longjiang (2021). Evaluation of Arctic Sea-ice Cover and Thickness Simulated by MITgcm, Advances in Atmospheric Sciences, 1 (38), 29-48, 10.1007/s00376-020-9223-6. Title: Evaluation of Arctic Sea-ice Cover and Thickness Simulated by MITgcm Type: Journal article Publication: Advances in Atmospheric Sciences Author(s): Zheng, Fei ; Sun, Yue ; Yang, Qinghua ; Mu, Longjiang Year: 2021 Formatted Citation: Zheng, F., Y. Sun, Q. Yang, and L. Mu, 2021 : evaluation of Arctic Sea-ice Cover and Thickness Simulated by MITgcm. Advances in Atmospheric Sciences, 38 ( 1 ), 29-48, doi:10.1007/s00376-020-9223-6 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://link.springer.com/10.1007/s00376-020-9223-6 Other URLs:
An, Lu; Rignot, Eric; Wood, Michael; Willis, Josh K.; Mouginot, Jérémie; Khan, Shfaqat A. (2021). Ocean melting of the Zachariae Isstrøm and Nioghalvfjerdsfjorden glaciers, northeast Greenland, Proceedings of the National Academy of Sciences, 2 (118), e2015483118, 10.1073/pnas.2015483118. Title: Ocean melt of the Zachariae Isstrøm and Nioghalvfjerdsfjorden glaciers, northeast Greenland Type: Journal article Publication: Proceedings of the National Academy of Sciences Author(s): An, Lu ; Rignot, Eric ; Wood, Michael ; Willis, Josh K. ; Mouginot, Jérémie ; Khan, Shfaqat A. Year: 2021 Formatted Citation: An, L., E. Rignot, M. Wood, J. K. Willis, J. Mouginot, and S. A. Khan, 2021 : Ocean dissolve of the Zachariae Isstrøm and Nioghalvfjerdsfjorden glaciers, northeastern Greenland. Proceedings of the National Academy of Sciences, 118 ( 2 ), e2015483118, doi:10.1073/pnas.2015483118 Abstract: Zachariae Isstrøm ( ZI ) and Nioghalvfjerdsfjorden ( 79N ) are marine-terminating glaciers in northeast Greenland that hold an ice volume equivalent to a 1.1-m global ocean level upgrade. ZI lost its float frosting ledge, sped up, retreated at 650 m/y, and experienced a 5-gigaton/y batch loss. Glacier 79N has been more stable despite its exposure to the same climate force. We analyze the impingement of ocean thermal force on the glaciers. A cubic inversion of airborne graveness data reveals an 800-m-deep, broad distribution channel that allows subsurface, warm, Atlantic Intermediate Water ( AIW ) ( +1.25°C ) to reach the front man of ZI via two sills at 350-m astuteness. Subsurface ocean temperature in that channel has warmed by 1.3 ± 0.5°C since 1979. Using an ocean model, we calculate a pace of internal-combustion engine removal at the grounding line by the ocean that increased from 108 m/y to 185 m/y in 1979-2019. Observed internal-combustion engine thinning caused a retreat of its flotation line to increase from 105 m/y to 217 m/y, for a combine ground channel retreat of 13 km in 41 y that matches autonomous observations within 14 %. In contrast, the circumscribed access of AIW to 79N via a narrower passage yields lower grounded ice removal ( 53 m/y to 99 m/y ) and thinning-induced retreat ( 27 m/y to 50 m/y ) for a compound retreat of 4.4 kilometer, besides within 12 % of observations. Ocean-induced removal of frosting at the grounding line, modulated by bathymetric barriers, is consequently a main driver of ice sheet retreat, but it is not incorporated in most ice sail models. Keywords: ECCO Products Used: ECCO2 ; LLC270URL: http://www.pnas.org/lookup/doi/10.1073/pnas.2015483118 Other URLs:
Li, Hongjie; Xu, Yongsheng (2021). Barotropic and baroclinic inverse kinetic energy cascade in the Antarctic Circumpolar Current, Journal of Physical Oceanography, 10.1175/JPO-D-20-0053.1. Title: Barotropic and baroclinic inverse kinetic energy cascade in the Antarctic Circumpolar Current Type: Journal article Publication: Journal of Physical Oceanography Author(s): Li, Hongjie ; Xu, Yongsheng Year: 2021 Formatted Citation: Li, H., and Y. Xu, 2021 : Barotropic and baroclinic inverse kinetic department of energy cascade in the Antarctic Circumpolar Current. Journal of Physical Oceanography, doi:10.1175/JPO-D-20-0053.1 Abstract: Stratified geostrophic turbulence theory predicts an inverse energy shower for the barotropic ( BT ) manner. Satellite altimetry has revealed a net inverse cascade in the baroclinic ( BC ) mood. here the spatial variabilities of BT and BC kinetic energy fluxes in the Antarctic Circumpolar Current ( ACC ) were investigated using ECCO2 data, which synthesizes satellite data and in situ measurements with an eddy-permitting cosmopolitan circulation models containing realistic bathymetry and weave coerce. The BT and BC inverse energizing energy cascades both reveal complex spatial variations that could not be explained amply by classical arguments. For example, the BC injection scales match better with most unstable scales than with the first-mode distortion scales, but the opposition is true for the BT manner. In addition, the BT and BC check scales do not follow the Rhines scale well in term of spatial pas seul, but show better consistency with their own energy-containing scales. The invert shower of the BT and BC modes was found related to their EKE, and better correlation was found between the BT inverse cascade and barotropization. Speculations of the findings were proposed. however, further observations and modeling experiments are needed to test these interpretations. Spectral flux anisotropy exhibits a have associated with oceanic jets that is reproducible with classical expectations. specifically, the apparitional flux along the along-stream commission remains negative at scales up to that of the study domain ( ~2000km ), while that in the plumb line direction becomes positive close to the scale of the width of a distinctive jet. Keywords: ECCO Products Used: ECCO2URL: https://journals.ametsoc.org/view/journals/phoc/aop/JPO-D-20-0053.1/JPO-D-20-0053.1.xml Other URLs:
ECCO Consortium; Fukumori, Ichiro; Wang, Ou; Fenty, Ian; Forget, Gael; Heimbach, Patrick; Ponte, Rui M. (2021). Synopsis of the ECCO Central Production Global Ocean and Sea-Ice State Estimate (Version 4 Release 4). Title: Synopsis of the ECCO Central Production Global Ocean and Sea-Ice State Estimate ( Version 4 Release 4 ) Type: Report Publication: Author(s): ECCO Consortium ; Fukumori, Ichiro ; Wang, Ou ; Fenty, Ian ; Forget, Gael ; Heimbach, Patrick ; Ponte, Rui M. Year: 2021 Formatted Citation: ECCO Consortium, I. Fukumori, O. Wang, I. Fenty, G. Forget, P. Heimbach, and R. M. Ponte, 2020 : outline of the ECCO Central Production Global Ocean and Sea-Ice State Estimate ( Version 4 Release 4 ), doi:10.5281/zenodo.4533349. Abstract: Keywords: ECCO, adjoint, estimate, oceanography ECCO Products Used: ECCO-V4URL: https://doi.org/10.5281/zenodo.4533349 Other URLs:
Xie, Jiping; Mu, Longjiang; Han, Bo; Yang, Qinghua (2021). Evaluation of sea-ice thickness reanalysis data from the coupled ocean-sea-ice data assimilation system TOPAZ4, Journal of Glaciology, 1-13, 10.1017/jog.2020.110. Title: Evaluation of sea-ice thickness reanalysis data from the coupled ocean-sea-ice data assimilation system TOPAZ4 Type: Journal article Publication: Journal of Glaciology Author(s): Xie, Jiping ; Mu, Longjiang ; Han, Bo ; Yang, Qinghua Year: 2021 Formatted Citation: Xie, J., L. Mu, B. Han, and Q. Yang, 2021 : evaluation of sea-ice thickness reanalysis data from the coupled ocean-sea-ice data acculturation system TOPAZ4. Journal of Glaciology, 1-13, doi:10.1017/jog.2020.110 Abstract: With the acculturation of satellite-based sea-ice thickness ( SIT ) data, the new SIT reanalysis from the Towards an Operational Prediction system for the North Atlantic European coastal Zones ( TOPAZ4 ) was released from 2014 to 2018. apart from assimilating sea-ice concentration and oceanic variables, TOPAZ4 further assimilates CS2SMOS SIT. In this study, the 5-year reanalysis is compared with CS2SMOS, the Pan-Arctic Ice-Ocean Modeling and Assimilating System ( PIOMAS ) and the Combined Model and Satellite Thickness ( CMST ). furthermore, we evaluate TOPAZ4 SIT with battlefield observations from upward-looking sonar ( ULS ), internal-combustion engine mass-balance buoys, Operation IceBridge Quicklook and Sea State Ship-borne Observations. The results indicate TOPAZ4 good reproduces the spatial characteristics of the Arctic SIT distributions, with bombastic differences with CS2SMOS/PIOMAS/CMST chiefly restricted to the Atlantic Sector and to the calendar month of September. TOPAZ4 shows thin ice rink in March and April, specially to the north of the Canadian Arctic Archipelago with a beggarly bias of -0.30 thousand when compared to IceBridge. Besides, TOPAZ4 simulates dense frosting in the Beaufort Sea when compared to ULS, with a mean bias of 0.11 m all class attack. The benefit from assimilating SIT data in TOPAZ4 is reflected in a 34 % improvement in root base hearty deviation. Keywords: ECCO Products Used: ECCO2URL: https://www.cambridge.org/core/product/identifier/S0022143020001100/type/journal_article Other URLs:
Zakem, Emily J.; Lauderdale, Jonathan M.; Schlitzer, Reiner; Follows, Michael J. (2021). A flux-based threshold for anaerobic activity in the ocean, Geophysical Research Letters, 10.1029/2020GL090423. Title: A flux-based doorsill for anaerobic bodily process in the ocean Type: Journal article Publication: Geophysical Research Letters Author(s): Zakem, Emily J. ; Lauderdale, Jonathan M. ; Schlitzer, Reiner ; Follows, Michael J. Year: 2021 Formatted Citation: Zakem, E.J., J.M. Lauderdale, R. Schlitzer, and M.J. Follows, 2021 : A flux-based brink for anaerobic activity in the ocean. Geophysical Research Letters, doi:10.1029/2020GL090423 Abstract: Keywords: ECCO Products Used: OCCAURL: https://onlinelibrary.wiley.com/doi/10.1029/2020GL090423 Other URLs:
Blaker, Adam T.; Joshi, Manoj; Sinha, Bablu; Stevens, David P.; Smith, Robin S.; Hirschi, Joël J.-M. (2021). FORTE 2.0: a fast, parallel and flexible coupled climate model, Geoscientific Model Development, 1 (14), 275-293, 10.5194/gmd-14-275-2021. Title: FORTE 2.0 : a fast, parallel and flexible coupled climate model Type: Journal article Publication: Geoscientific Model Development Author(s): Blaker, Adam T. ; Joshi, Manoj ; Sinha, Bablu ; Stevens, David P. ; Smith, Robin S. ; Hirschi, Joël J.-M. Year: 2021 Formatted Citation: Blaker, A.T., M. Joshi, B. Sinha, D.P. Stevens, R.S. Smith, and J.J.-M. Hirschi, 2021 : forte 2.0 : a fast, twin and flexible coupled climate model. Geoscientific Model Development, 14 ( 1 ), 275-293, doi:10.5194/gmd-14-275-2021 Abstract: FORTE 2.0 is an intermediate-resolution coupled atmosphere-ocean general circulation model ( AOGCM ) consist of the Intermediate General Circulation Model 4 ( IGCM4 ), a T42 apparitional atmosphere with 35σ layers, coupled to Modular Ocean Model – Array ( MOMA ), a 2° × 2° ocean with 15 z-layer depth levels. Sea ice is represented by a simpleton flux barrier. Both the standard atmosphere and ocean components are coded in Fortran. It is adequate to of producing a static climate for long integrations without the motivation for flux adjustments. One flexibility afforded by the IGCM4 atmosphere is the ability to configure the atmosphere with either 35σ layers ( troposphere and stratosphere ) or 20σ layers ( troposphere lone ). This enables experimental designs for exploring the roles of the troposphere and stratosphere, and the faster integration of the 20σ layer configuration enables longer duration studies on modest hardware. A description of FORTE 2.0 is given, followed by the analysis of two 2000-year control integrations, one using the 35σ shape of IGCM4 and one using the 20σ shape. Keywords: ECCO Products Used: OCCAURL: https://gmd.copernicus.org/articles/14/275/2021/ Other URLs:
Zhang, Yanxu; Dutkiewicz, Stephanie; Sunderland, Elsie M. (2021). Impacts of climate change on methylmercury formation and bioaccumulation in the 21st century ocean, One Earth, 10.1016/j.oneear.2021.01.005. Title: Impacts of climate change on methylmercury constitution and bioaccumulation in the twenty-first century ocean Type: Journal article Publication: One earth Author(s): Zhang, Yanxu ; Dutkiewicz, Stephanie ; Sunderland, Elsie M. Year: 2021 Formatted Citation: Zhang, Y., S. Dutkiewicz, and E.M. Sunderland, 2021 : Impacts of climate change on methylmercury constitution and bioaccumulation in the twenty-first hundred ocean. One earth, doi:10.1016/j.oneear.2021.01.005 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://linkinghub.elsevier.com/retrieve/pii/S2590332221000518 Other URLs:
Dobashi, Yoichiro; Inazu, Daisuke (2021). Improving Detectability of Seafloor Deformation From Bottom Pressure Observations Using Numerical Ocean Models, Frontiers in Earth Science (8), 10.3389/feart.2020.598270. Title: Improving Detectability of Seafloor Deformation From Bottom Pressure Observations Using Numerical Ocean Models Type: Journal article Publication: Frontiers in Earth Science Author(s): Dobashi, Yoichiro ; Inazu, Daisuke Year: 2021 Formatted Citation: Dobashi, Y. and D. Inazu, 2021 : Improving Detectability of Seafloor Deformation From Bottom Pressure Observations Using Numerical Ocean Models. Frontiers in Earth Science, 8, doi:10.3389/feart.2020.598270 Abstract: We investigated ocean bottom imperativeness ( OBP ) observation data at six plate subduction zones around the Pacific Ocean. The six regions included the Hikurangi Trough, the Nankai Trough, the Japan Trench, the Aleutian Trench, the Cascadia Subduction Zone, and the Chile Trench. For the sake of improving the detectability of seafloor deformation using OBP observations, we used numeric ocean models to represent realistic oceanic variations, and subtracted them from the detect OBP data. The numeric ocean models included four ocean general circulation models ( OGCMs ) of HYCOM, GLORYS, ECCO2, and JCOPE2M, and a single-layer ocean model ( SOM ). The OGCMs are chiefly driven by the wreathe impel. The SOM is driven by tip and/or atmospheric pressure cargo. The model OBP was subtracted from the detect OBP data, and root-mean-square ( RMS ) amplitudes of the residual OBP variations at a period of 3-90 days were evaluated by the respective regions and by the respective numeral ocean models. The OGCMs and SOM driven by wind entirely ( SOM w ) contributed to 5-27 % RMS reduction in the remainder OBP. When SOM driven by atmospheric pressure entirely ( SOM p ) was added to the modeled OBP, remainder RMS amplitudes were additionally reduced by 2-15 %. This indicates that the atmospheric atmospheric pressure is necessity to explain solid amounts of watch OBP variations at the period. The residual RMS amplitudes were 1.0-1.7 hPa when SOM phosphorus was added. The RMS reduction was relatively effective as 16-42 % at the Hikurangi Trough, the Nankai Trough, and the Japan Trench. The residual RMS amplitudes were relatively little as 1.0-1.1 hPa at the Nankai Trough and the Chile Trench. These results were discussed with former studies that had identified slow slips using OBP observations. We discussed on far accurate OBP model, and on improving detectability of seafloor contortion using OBP notice arrays. Keywords: ECCO Products Used: ECCO2URL: https://www.frontiersin.org/articles/10.3389/feart.2020.598270/full Other URLs:
Liu, Junjie; Baskaran, Latha; Bowman, Kevin; Schimel, David; Bloom, A. Anthony; Parazoo, Nicholas C.; Oda, Tomohiro; Carroll, Dustin; Menemenlis, Dimitris; Joiner, Joanna; Commane, Roisin; Daube, Bruce; Gatti, Lucianna V.; McKain, Kathryn; Miller, John; Stephens, Britton B.; Sweeney, Colm; Wofsy, Steven (2021). Carbon Monitoring System Flux Net Biosphere Exchange 2020 (CMS-Flux NBE 2020), Earth System Science Data, 2 (13), 299-330, 10.5194/essd-13-299-2021. Title: Carbon Monitoring System Flux Net Biosphere Exchange 2020 ( CMS-Flux NBE 2020 ) Type: Journal article Publication: Earth System Science Data Author(s): Liu, Junjie ; Baskaran, Latha ; Bowman, Kevin ; Schimel, David ; Bloom, A. Anthony ; Parazoo, Nicholas C. ; Oda, Tomohiro ; Carroll, Dustin ; Menemenlis, Dimitris ; Joiner, Joanna ; Commane, Roisin ; Daube, Bruce ; Gatti, Lucianna V. ; McKain, Kathryn ; Miller, John ; Stephens, Britton B. ; Sweeney, Colm ; Wofsy, Steven Year: 2021 Formatted Citation: Liu, J., L. Baskaran, K. Bowman, D. Schimel, A.A. Bloom, N.C. Parazoo, T. Oda, D. Carroll, D. Menemenlis, J. Joiner, R. Commane, B. Daube, L.V. Gatti, K. McKain, J. Miller, B.B. Stephens, C. Sweeney, and S. Wofsy, 2021 : Carbon Monitoring System Flux Net Biosphere Exchange 2020 ( CMS-Flux NBE 2020 ). earth System Science Data, 13 ( 2 ), 299-330, doi:10.5194/essd-13-299-2021 Abstract: Keywords: ECCO Products Used: ECCO2 ; LLC270URL: https://essd.copernicus.org/articles/13/299/2021/ Other URLs:
Belonenko, Tatyana V.; Travkin, Vladimir S.; Koldunov, Aleksey V.; Volkov, Denis L. (2021). Topographic experiments over dynamical processes in the Norwegian Sea, Russian Journal of Earth Sciences, 1 (21), 1-15, 10.2205/2020ES000747. Title: Topographic experiments over dynamic processes in the norwegian Sea Type: Journal article Publication: russian Journal of Earth Sciences Author(s): Belonenko, Tatyana V. ; Travkin, Vladimir S. ; Koldunov, Aleksey V. ; Volkov, Denis L. Year: 2021 Formatted Citation: Belonenko, T.V., V.S. Travkin, A.V. Koldunov, and D.L. Volkov, 2021 : topographical experiments over dynamic processes in the norwegian Sea. russian Journal of Earth Sciences, 21 ( 1 ), 1-15, doi:10.2205/2020ES000747 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://rjes.wdcb.ru/doi/2020ES000747-res.html Other URLs:
Vazquez-Cuervo, Jorge; Gentemann, Chelle; Tang, Wenqing; Carroll, Dustin; Zhang, Hong; Menemenlis, Dimitris; Gomez-Valdes, Jose; Bouali, Marouan; Steele, Michael (2021). Using Saildrones to Validate Arctic Sea-Surface Salinity from the SMAP Satellite and from Ocean Models, Remote Sensing, 5 (13), 831, 10.3390/rs13050831. Title: Using Saildrones to Validate Arctic Sea-Surface Salinity from the SMAP Satellite and from Ocean Models Type: Journal article Publication: Remote Sensing Author(s): Vazquez-Cuervo, Jorge ; Gentemann, Chelle ; Tang, Wenqing ; Carroll, Dustin ; Zhang, Hong ; Menemenlis, Dimitris ; Gomez-Valdes, Jose ; Bouali, Marouan ; Steele, Michael Year: 2021 Formatted Citation: Vazquez-Cuervo, J. C. Gentemann, W. Tang, D. Carroll, H. Zhang, D. Menemenlis, J. Gomez-Valdes, M. Bouali, and M. Steele, 2021 : Using Saildrones to Validate Arctic Sea-Surface Salinity from the SMAP Satellite and from Ocean Models. Remote Sensing, 13 ( 5 ), 831, doi:10.3390/rs13050831 Abstract: The Arctic Ocean is one of the most significant and ambitious regions to observe—it experiences the largest changes from climate warm, and at the same time is one of the most difficult to sample because of sea frost and extreme point cold temperatures. Two NASA-sponsored deployments of the Saildrone vehicle provided a alone opportunity for validating sea-surface brininess ( SSS ) derived from three separate products that use data from the Soil Moisture Active Passive ( SMAP ) satellite. To examine possible issues in resolving mesoscale-to-submesoscale variability, comparisons were besides made with two versions of the Estimating the Circulation and Climate of the Ocean ( ECCO ) model ( Carroll, D ; Menmenlis, D ; Zhang, H. ). The results indicate that the three SMAP products resolve the runoff signal associated with the Yukon River, with high correlation coefficient between SMAP products and Saildrone SSS. Spectral slopes, overall, replicate the -2.0 slopes associated with mesoscale-submesoscale variability. Statistically significant spatial coherences exist for all products, with peaks close to 100 kilometer. Based on these encourage results, future research should focus on improving derivations of satellite-derived SSS in the Arctic Ocean and integrating model results to complement outback sensing observations. Keywords: ECCO Products Used: LLC270 ; LLC_hiresURL: https://www.mdpi.com/2072-4292/13/5/831 Other URLs:
Kodama, Keri; Burls, Natalie J.; Trenary, Laurie (2021). The Niño-3.4 Prediction Skill of Empirically Adjusted Wind Power, Journal of Climate, 6 (34), 2001-2015, 10.1175/JCLI-D-20-0045.1. Title: The Niño-3.4 Prediction Skill of Empirically Adjusted Wind Power Type: Journal article Publication: Journal of Climate Author(s): Kodama, Keri ; Burls, Natalie J. ; Trenary, Laurie Year: 2021 Formatted Citation: Kodama, K., N.J. Burls, and L. Trenary, 2021 : The Niño-3.4 Prediction Skill of Empirically Adjusted Wind Power. Journal of Climate, 34 ( 6 ), 2001-2015, doi:10.1175/JCLI-D-20-0045.1 Abstract: Wind power, defined as the energy received by the ocean from wind, has been identified as a potentially feasible harbinger of ENSO. The correlation coefficient between tropical Pacific scent power anomalies and eastern equatorial Pacific sea surface temperature anomalies can be enhanced over a range of tip times by applying an empirical adjusted framework that accounts for both the fundamental climatological country upon which a wind exponent disruption acts and the directivity of fart anomalies. linear regression is used to assess the seasonal worker prediction skill of adjusted wind instrument power in comparison to unadapted, deoxyadenosine monophosphate well as the conventional ENSO predictors wind stress and warm water system bulk. The bode skill of each regression model is evaluated in a 1800-yr preindustrial climate simulation ( CESM-LENS ), american samoa well as 23 years of observations. The model results show that each predictor ’ second effectiveness varies well with the sample record, providing a standard of the doubt involved in evaluating prediction skill based on the short circuit experimental record. The charm of climatological biases is however a demonstrable concern for results from the simulated climate system. Despite the short read, the experimental analysis indicates that adjusted weave world power skill is comparable to the ceremonious dynamic predictors and notably is significantly more predictable than unadjusted weave power when initialized in the summer. furthermore, the adjusted framework results in a reduction of error when evaluating wind power associated with wind bursts, reinforcing previous findings that the adjusted framework is particularly useful for capturing the ENSO response to prevailing westerly wind bursts. Keywords: ECCO Products Used: ECCO-V4URL: https://journals.ametsoc.org/view/journals/clim/34/6/JCLI-D-20-0045.1.xml Other URLs:
Han, Lei (2021). The Sloshing and Diapycnal Meridional Overturning Circulations in the Indian Ocean, Journal of Physical Oceanography, 3 (51), 701-725, 10.1175/JPO-D-20-0211.1. Title: The Sloshing and Diapycnal Meridional Overturning Circulations in the indian Ocean Type: Journal article Publication: Journal of Physical Oceanography Author(s): Han, Lei Year: 2021 Formatted Citation: Han, L., 2021 : The Sloshing and Diapycnal Meridional Overturning Circulations in the indian Ocean. Journal of Physical Oceanography, 51 ( 3 ), 701-725, doi:10.1175/JPO-D-20-0211.1 Abstract: The meridional overturn circulation ( MOC ) seasonality in the indian Ocean is investigated with the ocean submit estimate product ECCO v4r3. The vertical movements of water parcels are predominantly ascribable to the pant of the isopycnals all over the basin except off the western seashore. Aided by the linear generation equality of long baroclinic Rossby waves, the driving factor determining the strength of the seasonal MOC in the indian Ocean is identified as the zonally incorporate Ekman pumping anomaly, rather than the Ekman transport concluded in earlier studies. A newly concept of sloshing MOC is proposed, and its remainder with the classic Eulerian MOC leads to the alleged diapycnal MOC. The outstanding resemblance of the Eulerian and sloshing MOCs implies the seasonal worker variation of the Eulerian MOC in the indian Ocean is a slosh mode. The shallow overturn cells manifest themselves in the diapycnal MOC as the most noteworthy structure. New perspectives on the upwelling outgrowth of the shallow revoke in the amerind Ocean are offered based on diapycnal vertical speed. The discrepancy among the observation-based estimates on the buttocks inflow across 32°S of the basin is interpreted with the seasonal worker splash mode. consequently, the “ missing mixing ” in the deep indian Ocean is attributed to the overvalue diapycnal volume fluxes. decomposition of meridional heat transportation ( MHT ) into sloshing and diapycnal components clearly shows the dominant mechanism of MHT in the indian Ocean in versatile seasons. Keywords: ECCO Products Used: ECCO-V4URL: https://journals.ametsoc.org/view/journals/phoc/51/3/JPO-D-20-0211.1.xml Other URLs:
Lyu, Guokun; Koehl, Armin; Serra, Nuno; Stammer, Detlef; Xie, Jiping (2021). Arctic Ocean-Sea ice reanalysis for the period 2007-2016 using the adjoint method, Quarterly Journal of the Royal Meteorological Society, qj.4002, 10.1002/qj.4002. Title: Arctic Ocean-Sea ice reanalysis for the time period 2007-2016 using the adjoint method acting Type: Journal article Publication: Quarterly Journal of the Royal Meteorological Society Author(s): Lyu, Guokun ; Koehl, Armin ; Serra, Nuno ; Stammer, Detlef ; Xie, Jiping Year: 2021 Formatted Citation: Lyu, G., A. Koehl, N. Serra, D. Stammer, and J. Xie, 2021 : arctic Ocean-Sea ice reanalysis for the time period 2007-2016 using the adjoint method acting. quarterly Journal of the Royal Meteorological Society, qj.4002, doi:10.1002/qj.4002 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/10.1002/qj.4002 Other URLs:
Schindelegger, Michael; Harker, Alexander A.; Ponte, Rui M.; Dobslaw, Henryk; Salstein, David A. (2021). Convergence of Daily GRACE Solutions and Models of Submonthly Ocean Bottom Pressure Variability, Journal of Geophysical Research: Oceans, 2 (126), 10.1029/2020JC017031. Title: Convergence of Daily GRACE Solutions and Models of Submonthly Ocean Bottom Pressure Variability Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Schindelegger, Michael ; Harker, Alexander A. ; Ponte, Rui M. ; Dobslaw, Henryk ; Salstein, David A. Year: 2021 Formatted Citation: Schindelegger, M., A.A. Harker, R.M. Ponte, H. Dobslaw, and D.A. Salstein, 2021 : overlap of Daily GRACE Solutions and Models of Submonthly Ocean Bottom Pressure Variability. Journal of Geophysical Research : Oceans, 126 ( 2 ), doi:10.1029/2020JC017031 Abstract: Keywords: ECCO Products Used: ECCO-V4 ; LLC270URL: https://onlinelibrary.wiley.com/doi/10.1029/2020JC017031 Other URLs:
Pandey, Lokesh; Dwivedi, Suneet; Martin, Matthew (2021). Short-Term Predictability of the Bay of Bengal Region Using a High-Resolution Indian Ocean Model, Marine Geodesy (1-14), 10.1080/01490419.2021.189427. Title: Short-Term Predictability of the Bay of Bengal Region Using a High-Resolution indian Ocean Model Type: Journal article Publication: Marine Geodesy Author(s): Pandey, Lokesh ; Dwivedi, Suneet ; Martin, Matthew Year: 2021 Formatted Citation: Pandey, L., S. Dwivedi, and M. Martin, 2021 : short-run Predictability of the Bay of Bengal Region Using a High-Resolution indian Ocean Model. Marine Geodesy, 1-14, doi:10.1080/01490419.2021.189427 Abstract: An ocean circulation model, Nucleus for european Modelling of the Ocean ( NEMO translation 3.6 ) is customized to run at high-resolution over a regional knowledge domain [ 30°E-105°E ; 20°S-30°N ] in the indian Ocean. It uses horizontal resoluteness of 1/12° in longitude/latitude and 75 levels in the upright direction. The model good captures the ascertained space-time variations of temperature and salt at the surface and subsurface, and the airfoil currents and eddy kinetic department of energy. The short-run spatio-temporal predictability of the Bay of Bengal ( BoB ) region is quantified using the mannequin currents. The Lagrangian measure of predictability, Finite Time Lyapunov Exponent ( FTLE ) is compared with the Eulerian measure ( Okubo-Weiss parameter ). The regions of chaotic stirring are identified in the BoB. The FTLE analysis reveals that the predictability on a semiweekly prison term scale in the BoB is minimum during October-November, and the highest during May to July. The FTLE is shown to serve as a useful creature for planning targeted observations in the BoB area. Keywords: ECCO Products Used: ECCO2URL: https://www.tandfonline.com/doi/full/10.1080/01490419.2021.1894273 Other URLs:
Velímský, Jakub; Schnepf, Neesha R.; Nair, Manoj C.; Thomas, Natalie P. (2021). Can seafloor voltage cables be used to study large-scale circulation? An investigation in the Pacific Ocean, Ocean Science, 1 (17), 383-392, 10.5194/os-17-383-2021. Title: Can seafloor voltage cables be used to study large-scale circulation ? An probe in the Pacific Ocean Type: Journal article Publication: Ocean Science Author(s): Velímský, Jakub ; Schnepf, Neesha R. ; Nair, Manoj C. ; Thomas, Natalie P. Year: 2021 Formatted Citation: Velímský, J., N.R. Schnepf, M.C., Nair, and N.P. Thomas, 2021 : Can seafloor voltage cables be used to study large-scale circulation ? An probe in the Pacific Ocean. Ocean Science, 17 ( 1 ), 383-392, doi:10.5194/os-17-383-2021 Abstract: Marine electromagnetic ( EM ) signals largely depend on three factors : menstruation speed, Earth ‘s main magnetic field, and seawater ‘s electric conduction ( which depends on the local temperature and brininess ). Because of this, there has been late interest in using marine EM signals to monitor and study ocean circulation. Our study use voltage data from put out seafloor telecommunication cables in the Pacific Ocean to examine whether such cables could be used to monitor circulation speed or transport on large oceanic scales. We process the cable television data to isolate the seasonal and monthly variations and then evaluate the correlation coefficient between the processed data and numerical predictions of the electric sphere induced by an calculate of ocean circulation. We find that the correlation coefficient between cable voltage data and numeric predictions strongly depends on both the intensity and coherence of the model velocities flowing across the cable, the local anesthetic EM environment, a well as the length of the cable. The cable within the Kuroshio Current had good correlation coefficient between data and predictions, whereas two of the cables in the Eastern Pacific Gyre – a region with both low stream speeds and interfering speed directions across the cable – did not have any clear correlation between data and predictions. meanwhile, a third cable besides located in the Eastern Pacific Gyre showed good correlation coefficient between data and predictions – although the cable is very long and the speeds were depleted, it was located in a region of coherent flow speed across the cable. While much improvement is needed before utilize seafloor voltage cables to study and monitor oceanic circulation across broad regions, we believe that with extra ferment, the answer to the interrogate of whether or not seafloor electric potential cables can be used to study large-scale circulation may finally be yes. Keywords: ECCO Products Used: ECCO-V4URL: https://os.copernicus.org/articles/17/383/2021/ Other URLs:
Desbruyères, Damien; Chafik, Léon; Maze, Guillaume (2021). A shift in the ocean circulation has warmed the subpolar North Atlantic Ocean since 2016, Communications Earth & Environment, 1 (2), 48, 10.1038/s43247-021-00120-y. Title: A shift in the ocean circulation has warmed the subpolar North Atlantic Ocean since 2016 Type: Journal article Publication: Communications Earth & Environment Author(s): Desbruyères, Damien ; Chafik, Léon ; Maze, Guillaume Year: 2021 Formatted Citation: Desbruyères, D., L. Chafik, and G. Maze, 2021 : A switch in the ocean circulation has warmed the subpolar North Atlantic Ocean since 2016. Communications Earth & Environment, 2 ( 1 ), 48, doi:10.1038/s43247-021-00120-y Abstract: The Subpolar North Atlantic is known for rapid reversals of decadal temperature trends, with ramifications encompassing the large-scale meridional overthrow and coil circulations, Arctic heat and mass balances, or extreme continental weather. here, we combine datasets derived from sustained ocean observing systems ( satellite and in situ ), idealized observation-based model ( advection-diffusion of a passive voice tracer ), and a machine learn technique ( ocean profile clustering ) to document and explain the most-recent and ongoing cooling-to-warming transition of the Subpolar North Atlantic. Following a gradual cool of the area that was persisting since 2006, a surface-intensified and large-scale warming sharply emerged in 2016 following an ocean circulation shift that enhanced the northeastward penetration of ardent and saline solution waters from the western subtropics. The long ocean memory of the Subpolar North Atlantic implies that this advection-driven calefacient is probable to persist in the near-future with possible implications for the Atlantic multidecadal variability and its global impacts. Keywords: ECCO Products Used: ECCO-V4URL: http://www.nature.com/articles/s43247-021-00120-y Other URLs:
Ren, Shihe; Liang, Xi; Sun, Qizhen; Yu, Hao; Tremblay, L. Bruno; Lin, Bo; Mai, Xiaoping; Zhao, Fu; Li, Ming; Liu, Na; Chen, Zhikun; Zhang, Yunfei (2021). A fully coupled Arctic sea-ice-ocean-atmosphere model (ArcIOAM v1.0) based on C-Coupler2: model description and preliminary results, Geoscientific Model Development, 2 (14), 1101-1124, 10.5194/gmd-14-1101-2021. Title: A in full coupled Arctic sea-ice-ocean-atmosphere model ( ArcIOAM v1.0 ) based on C-Coupler2 : model description and preliminary results Type: Journal article Publication: Geoscientific Model Development Author(s): Ren, Shihe ; Liang, Xi ; Sun, Qizhen ; Yu, Hao ; Tremblay, L. Bruno ; Lin, Bo ; Mai, Xiaoping ; Zhao, Fu ; Li, Ming ; Liu, Na ; Chen, Zhikun ; Zhang, Yunfei Year: 2021 Formatted Citation: Ren, S., X. Liang, Q. Sun, H. Yu, L.B. Tremblay, B. Lin, X. Mai, F. Zhao, M. Li, N. Liu, Z. Chen, and Y. Zhang, 2021 : A fully coupled Arctic sea-ice-ocean-atmosphere model ( ArcIOAM v1.0 ) based on C-Coupler2 : model description and preliminary results. Geoscientific Model Development, 14 ( 2 ), 1101-1124, doi:10.5194/gmd-14-1101-2021 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://gmd.copernicus.org/articles/14/1101/2021/ Other URLs:
Dutkiewicz, Stephanie; Boyd, Philip W.; Riebesell, Ulf (2021). Exploring biogeochemical and ecological redundancy in phytoplankton communities in the global ocean, Global Change Biology, 6 (27), 1196-1213, 10.1111/gcb.15493. Title: Exploring biogeochemical and ecological redundancy in phytoplankton communities in the ball-shaped ocean Type: Journal article Publication: Global Change Biology Author(s): Dutkiewicz, Stephanie ; Boyd, Philip W. ; Riebesell, Ulf Year: 2021 Formatted Citation: Dutkiewicz, S., P.W. Boyd, and U. Riebesell, 2021 : Exploring biogeochemical and ecological redundancy in phytoplankton communities in the ball-shaped ocean. global Change Biology, 27 ( 6 ), 1196-1213, doi:10.1111/gcb.15493 Abstract: Keywords: ECCO Products Used: ECCO-V3URL: https://onlinelibrary.wiley.com/doi/10.1111/gcb.15493 Other URLs:
Dong, Jihai; Fox-Kemper, Baylor; Zhang, Hong; Dong, Changming (2021). The scale and activity of symmetric instability estimated from a global submesoscale-permitting ocean model, Journal of Physical Oceanography, 10.1175/JPO-D-20-0159.1. Title: The scale and activity of symmetrical instability estimated from a global submesoscale-permitting ocean model Type: Journal article Publication: Journal of Physical Oceanography Author(s): Dong, Jihai ; Fox-Kemper, Baylor ; Zhang, Hong ; Dong, Changming Year: 2021 Formatted Citation: Dong, J. B. Fox-Kemper, H. Zhang, and C. Dong, 2021 : The scale and activeness of symmetrical imbalance estimated from a global submesoscale-permitting ocean model. Journal of Physical Oceanography, doi:10.1175/JPO-D-20-0159.1 Abstract: Symmetric instability ( SI ) extracts kinetic energy from fronts in the surface assorted layer ( SML ), potentially affecting the SML structure and dynamics. here, a global submesoscale-permitting ocean model named MITgcm LLC4320 pretense is used to examine the Stone ( 1966 ) linear prediction of the utmost SI scale to estimate power system spacings needed to begin resolving SI. Furthermore, potential effects of SI on the functional wind-work are estimated approximately : this calculate of SI “ activity ” is utilitarian for assessing if these modes should be resolved or parameterized. The maximum SI scale varies by latitude with median values of 568 m to 23 m. Strong seasonality is observed in the SI scale and natural process. The medial scale in winter is 188 thousand globally, 2.5 times of that of summer ( 75 thousand ). SI is more active agent in winter : 15 % of the clock compared with 6 % in summer. The strongest ti natural process is found in the western Pacific, western Atlantic, and Southern Oceans. The want grid spacings for a ball-shaped model to begin resolving SI eddies in the SML are 24 m ( 50 % of regions resolved ) and 7.9 m ( 90 % ) in winter, decreasing to 9.4 m ( 50 % ) and 3.6 megabyte ( 90 % ) in summer. It is besides estimated that SI may reduce useable wind-work by an amphetamine limit of 0.83 mW molarity -2 globally, or 5 % of the global order of magnitude. The sensitivity of these estimates to empiric thresholds is provided in the textbook. Keywords: ECCO Products Used: LLC_hiresURL: https://journals.ametsoc.org/view/journals/phoc/aop/JPO-D-20-0159.1/JPO-D-20-0159.1.xml Other URLs:
Ward, Ben A.; Cael, B.B.; Collins, Sinead; Young, C. Robert (2021). Selective constraints on global plankton dispersal, Proceedings of the National Academy of Sciences, 10 (118), e2007388118, 10.1073/pnas.2007388118. Title: selective constraints on global plankton dispersion Type: Journal article Publication: Proceedings of the National Academy of Sciences Author(s): Ward, Ben A. ; Cael, B.B. ; Collins, Sinead ; Young, C. Robert Year: 2021 Formatted Citation: Ward, B.A., B.B. Cael, S. Collins, and C.R. Young, 2021 : selective constraints on ball-shaped plankton dispersion. Proceedings of the National Academy of Sciences, 118 ( 10 ), e2007388118, doi:10.1073/pnas.2007388118 Abstract: Marine microbial communities are highly coordinated assemblages of organisms shaped by ecological drift, lifelike selection, and dispersion. The relative intensity of these forces determines how ecosystem react to environmental gradients, how much diverseness is resident in a community or population at any given meter, and how populations reorganize and evolve in answer to environmental perturbations. In this cogitation, we introduce a globally resolved population-genetic ocean mannequin in order to examine the interplay of dispersion, choice, and adaptive development and their effects on community fabrication and global biogeography. We find that environmental choice places impregnable constraints on global dispersion, even in the boldness of extremely high assumed rates of adaptation. Changing the relative strengths of dispersion, choice, and adaptation has pronounced effects on community forum in the model and suggests that barriers to dispersal play a key character in the structure of nautical communities, enhancing ball-shaped biodiversity and the importance of local historical contingencies. Keywords: ECCO Products Used: ECCO-V4URL: http://www.pnas.org/lookup/doi/10.1073/pnas.2007388118 Other URLs:
Min, Chao; Yang, Qinghua; Mu, Longjiang; Kauker, Frank; Ricker, Robert (2021). Ensemble-based estimation of sea-ice volume variations in the Baffin Bay, The Cryosphere, 1 (15), 169-181, 10.5194/tc-15-169-2021. Title: Ensemble-based estimate of sea-ice volume variations in the Baffin Bay Type: Journal article Publication: The Cryosphere Author(s): Min, Chao ; Yang, Qinghua ; Mu, Longjiang ; Kauker, Frank ; Ricker, Robert Year: 2021 Formatted Citation: Min, C., Q. Yang, L. Mu, F. Kauker, and R. Ricker, 2021 : Ensemble-based estimate of sea-ice volume variations in the Baffin Bay. The Cryosphere, 15 ( 1 ), 169-181, doi:10.5194/tc-15-169-2021 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://tc.copernicus.org/articles/15/169/2021/ Other URLs:
Schloesser, F.; Thompson, P.R.; Piecuch, C.G. (2021). Meridional Asymmetry in Recent Decadal Sea-Level Trends in the Subtropical Pacific Ocean, Geophysical Research Letters, 10.1029/2020GL091959. Title: Meridional Asymmetry in Recent Decadal Sea-Level Trends in the Subtropical Pacific Ocean Type: Journal article Publication: Geophysical Research Letters Author(s): Schloesser, F. ; Thompson, P.R. ; Piecuch, C.G. Year: 2021 Formatted Citation: Schloesser, F., P.R. Thompson, P.R. and C.G. Piecuch, 2021 : meridional asymmetry in Recent Decadal Sea-Level Trends in the Subtropical Pacific Ocean. Geophysical Research Letters, doi:10.1029/2020GL091959 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/10.1029/2020GL091959 Other URLs:
Praetorius, Summer K.; Condron, Alan; Mix, Alan C.; Walczak, Maureen H.; McKay, Jennifer L.; Du, Jianghui (2020). The role of Northeast Pacific meltwater events in deglacial climate change, Science Advances, 9 (6), 10.1126/sciadv.aay2915. Title: The character of Northeast Pacific meltwater events in deglacial climate exchange Type: Journal article Publication: Science Advances Author(s): Praetorius, Summer K. ; Condron, Alan ; Mix, Alan C. ; Walczak, Maureen H. ; McKay, Jennifer L. ; Du, Jianghui Year: 2020 Formatted Citation: Praetorius, S. K., A. Condron, A. C. Mix, M. H. Walczak, J. L. McKay, and J. Du, 2020 : The role of Northeast Pacific meltwater events in deglacial climate deepen. skill Advances, 6 ( 9 ), doi:10.1126/sciadv.aay2915 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://www.science.org/doi/10.1126/sciadv.aay2915 Other URLs:
Buongiorno Nardelli, Bruno (2020). A multi-year time series of observation-based 3D horizontal and vertical quasi-geostrophic global ocean currents, Earth System Science Data, 3 (12), 1711-1723, 10.5194/essd-12-1711-2020. Title: A multi-year time series of observation-based 3D horizontal and vertical quasi-geostrophic ball-shaped ocean currents Type: Journal article Publication: Earth System Science Data Author(s): Buongiorno Nardelli, Bruno Year: 2020 Formatted Citation: Buongiorno Nardelli, B., 2020 : A multi-year clock series of observation-based 3D horizontal and vertical quasi-geostrophic global ocean currents. earth System Science Data, 12 ( 3 ), 1711-1723, doi:10.5194/essd-12-1711-2020 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://essd.copernicus.org/articles/12/1711/2020/ Other URLs:
Mémin, Anthony; Boy, Jean-Paul; Santamaría-Gómez, Alvaro (2020). Correcting GPS measurements for non-tidal loading, GPS Solutions, 2 (24), 45, 10.1007/s10291-020-0959-3. Title: Correcting GPS measurements for non-tidal load Type: Journal article Publication: GPS Solutions Author(s): Mémin, Anthony ; Boy, Jean-Paul ; Santamaría-Gómez, Alvaro Year: 2020 Formatted Citation: Mémin, A., J-P. Boy, and A. Santamaría-Gómez, 2020 : Correcting GPS measurements for non-tidal load, GPS Solutions, 24 ( 2 ), 45, department of the interior : 10.1007/s10291-020-0959-3 Abstract: Non-tidal load ( NTL ) deforms the worldly concern ’ second surface, adding unevenness to the coordinates of geodetic sites. Yet, according to the IERS Conventions, there are no commend surface-mass exchange models to account for NTL contortion in geodetic position clock time series. We investigate the NTL signal recorded at 585 GPS stations at different frequency bands, from day to years, by comparing GPS estimated displacements to modeled environmental load. We used up-to-date and high-resolution ( both worldly and spatial ) models to account for NTL induced by mass changes in the atmosphere, oceans, and continental hydrology. upright land motions variability is reduced on modal by up to 20 % when correcting the serial for non-tidal atmospheric and oceanic load, employing either barotropic or baroclinic ocean models. We then focus on characterizing the ocean response to air-pressure variations, and we observe that there are no meaning differences at seasonal timescales between a barotropic ocean model forced by tune pressure and winds and a more classical baroclinic ocean model forced by wind, inflame and fresh water fluxes. however, any of these choices promote reduces the unevenness by 5 % compared to the classical static inverted barometer ocean response. The variability of the upright coordinate changes is farther reduced by an extra 5 % by besides correcting for continental hydrology load, specially at seasonal periods. For horizontal organize changes, the variability is reduced by less than 5 % after correcting for all studied surface-mass changes. Keywords: ECCO Products Used: ECCO-KFSURL: https://link.springer.com/article/10.1007%2Fs10291-020-0959-3 Other URLs:
Hu, Shijian; Sprintall, Janet; Guan, Cong; Hu, Dunxin; Wang, Fan; Lu, Xi; Li, Shihan (2020). Observed Triple Mode of Salinity Variability in the Thermocline of Tropical Pacific Ocean, Journal of Geophysical Research: Oceans, 9 (125), 10.1029/2020JC016210. Title: Observed Triple Mode of Salinity Variability in the Thermocline of Tropical Pacific Ocean Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Hu, Shijian ; Sprintall, Janet ; Guan, Cong ; Hu, Dunxin ; Wang, Fan ; Lu, Xi ; Li, Shihan Year: 2020 Formatted Citation: Hu, S., J. Sprintall, C. Guan, D. Hu, F. Wang, X. Lu, and S. Li, 2020 : Observed Triple Mode of Salinity Variability in the Thermocline of Tropical Pacific Ocean, Journal of Geophysical Research : Oceans, 125 ( 9 ), department of the interior : 10.1029/2020JC016210 Abstract: A chiseled Triple MOde of Salinity ( TMOS ) variability in the tropical Pacific thermocline layer ( 24-25.5 αθ isopycnal surfaces ) is revealed from the Argo observations during 2004-2018. Thermocline salt in the tropical northern and southwestern Pacific Ocean varies out of phase on interannual to near-decadal time scales with that in the tropical southeastern Pacific Ocean. The TMOS is attributed to anomalous advection of beggarly salt american samoa well as advection of anomalous salt by the think of oceanic current on isopycnal surfaces. While the TMOS design is quite different from the thermal patterns associated with the El Niño-Southern Oscillation ( ENSO ) or the Pacific Decadal Oscillation ( PDO ), it is significantly associated with the ENSO and PDO indices with a time lag of 10 months. Isopycnal generation of brininess anomalies and anomalous fresh water stimulation in the outcrop region, besides both associated with ENSO and PDO, are important in the formation of TMOS. The generation travel rapidly of isopycnal salt anomalies is close to document phase speeds of baroclinic Rossby waves and velocities of zonal currents. The TMOS acts to shape the basin-scale Pacific body of water masses and potentially plays an important character in climate. Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/10.1029/2020JC016210 Other URLs:
Rosat, S.; Gillet, N; Boy, J-P.; Couhert, A.; Dumberry, M. (2020). Interannual variations of degree 2 from geodetic observations and surface processes, Geophysical Journal International, 10.1093/gji/ggaa590. Title: Interannual variations of degree 2 from geodetic observations and coat processes Type: Journal article Publication: Geophysical Journal International Author(s): Rosat, S. ; Gillet, N ; Boy, J-P. ; Couhert, A. ; Dumberry, M. Year: 2020 Formatted Citation: Rosat, S., N. Gillet, J-P. Boy, A. Couhert, A., and M. Dumberry, 2020 : Interannual variations of degree 2 from geodetic observations and surface processes, Geophysical Journal International, department of the interior : 10.1093/gji/ggaa590 Abstract: Geodetic observations from quad endlessly record surface contortion and ball-shaped aggregate redistribution with an increasing accuracy. In parallel, surficial processes ( oceanic, atmospheric, and hydrological cargo ) are more and more precisely modeled.We propose a confrontation of the geodetic Global Positioning System ( GPS ) and gravity-field satellite laser range ( SLR ) observations at decadal and interannual meter scales, in terms of settlement, correlation coefficient and comparison with surficial cargo models. We focus on the largest ball-shaped scale signals of academic degree 2. At interannual periods, surface deformations retrieved from GPS time-series do not exceed 0.8 millimeter. Our analysis does not reveal the presence of a prevailing signal at a specific period, except possibly for a sign of approximately 3 yr probably connected to the loading answer to El Niño / Southern Oscillations. Contrary to the results of former studies, we do not find in GPS time-series a clear 6-yr cycle associated with a degree-2 order-2 blueprint. Interannual variations in the degree-2 Stokes coefficients of the gravity field do not exceed 2 × 10-11. We do not detect a dominant gravity signal at one particular period but alternatively a broad spectrum of frequencies. The comparison between the degree 2 deformations built from GPS time-series with a prediction from SLR derived graveness variations reveals some correlations, though their differences remain authoritative. This highlights the present day limitations of these techniques in their ability to characterize global scale interannual variations. Hydrological loading models show some correlations with both GPS and SLR signals, but we can not firmly establish that continental hydrology is dominantly responsible for the detect variations. Given the current limits in the solution of both gravity and surface distortion and in the model of surface processes, we conclude that it will be a challenge to retrieve a geodetic bespeak of sub-decadal period originating in the Earth ‘s core. Keywords: ECCO Products Used: ECCO2URL: https://academic.oup.com/gji/advance-article/doi/10.1093/gji/ggaa590/6031322 Other URLs:
Travis, Seth (2020). Mesoscale Eddy Activity in the South Pacific Subtropical Counter-current: Decadal Variability and Bio-physical Connections, University of Hawai’i at Manoa, 147. Title: Mesoscale Eddy Activity in the South Pacific Subtropical Counter-current : Decadal Variability and Bio-physical Connections Type: thesis Publication: University of Hawai’i at Manoa Author(s): Travis, Seth Year: 2020 Formatted Citation: Travis, S., 2020 : Mesoscale Eddy Activity in the South Pacific Subtropical Counter-current : Decadal Variability and Bio-physical Connections, University of Hawai’i at Manoa Abstract: Mesoscale eddies are significant contributors to ocean circulation, and are omnipresent throughout the world ‘s oceans. They are capable of transporting heat, salt, nutrients, and phytoplankton, and are crucial in the remove of department of energy between different scales. In the South Pacific the Subtropical Counter-current is a region of heightened eddy activity which has been little analyze. The South Pacific Subtropical Counter-current ( STCC ) is an eastward flow current which overlays the westbound South Equatorial Current ( SEC ). This vertically sheared STCC-SEC system is subject to baroclinic instabilities, which gives ascend to mesoscale eddies. Decadal variability of eddy activeness in the western, subtropical South Pacific is examined using the past two decades of satellite altimetry data. By using ocean reanalysis data, low-frequency variations in the state of the ocean in this area are investigated. It is found that the low-frequency changes in shear and stratification simultaneously bring to modulate the military capability of baroclinic instabilities. These changes in the strength of the instabilities consequently affect the observe eddy activeness. Using a linearization of the baroclinic emergence rate, the contribution to the variability from the changes in shearing is found to be roughly doubly equally boastfully as those from changes in stratification. additionally, changes in the temperature and salt fields are both found to have meaning impacts on the low-frequency unevenness of shearing and stratification, for which brininess changes are responsible for 50-75 % of the variability as caused by temperature changes. however, the changes in all these parameters do not occur concurrently, and can alternately work to negate or augment each other. By furthering the probe of this system to look at the driving mechanisms leading to changes in the shear and stratification, larger drivers of overall eddy activity can be identified. The Estimating the Circulation and Climate of the Ocean, phase II ( ECCO2 ) ocean state of matter model is used to perform budget analyses to identify to most crucial mechanisms altering the temperature and brininess fields in the STCC, and subsequently, the fleece and stratification. These budgets can then be related back to the linearized baroclinic growth rate to look at the impingement of individual drivers on eddy activeness. unevenness in advective liquefy convergence is found to be the most consequential driver, for both shear and stratification, while direct atmospheric coat forcing through net heat liquefy and moisture fluxes are of approximately equal importance. atmospheric forcings are additionally found to be related to the Interdecadal Pacific Oscillation through changes in the location and strength of the South Pacific Convergence Zone. Mesoscale eddies have been shown to have significant effects on biogeochemical cycles, as observed in local levels of near-surface chlorophyll. In the South Pacific Subtropical Counter-current, however, an inconsistent chlorophyll anomaly response and a low correlation to the presence of eddies challenges simpleton explanation of the mechanism at bet. Using Glob-Colour ocean color data and Aviso altimetry data, an probe of the area found that a seasonal reverse occurs in the character of the chlorophyll anomaly within eddies ( reverse from positive to negative, and frailty versa ). The cause of this about-face is inferred to be a seasonally-changing limiting divisor within the region. Argo float profiles co-located inside and outside of eddies are used to show the coincidence of chlorophyll anomalies with seasonally changing blend layer depths and the ability of the eddies to access deep nutrient pools. Observations of other mechanisms, such as eddy stirring or eddy-Ekman pump, are found to be seasonally less authoritative than the desegregate layer depth switch induced nutrient flow. additionally, metrics are developed to globally identify oceanic regions in which such seasonal reversals in chlorophyll anomalies could occur. Keywords: ECCO Products Used: ECCO2URL: https://scholarspace.manoa.hawaii.edu/handle/10125/69057 Other URLs:
Grabon, Jeffrey Scott (2020). An analysis of Atlantic water in the Arctic Ocean using the Arctic Subpolar gyre state estimate and observations, Massachusetts Institute of Technology. Title: An analysis of Atlantic water in the Arctic Ocean using the Arctic Subpolar coil state estimate and observations Type: dissertation Publication: Massachusetts Institute of Technology Author(s): Grabon, Jeffrey Scott Year: 2020 Formatted Citation: Grabon, J.S., 2020 : An analysis of Atlantic water in the Arctic Ocean using the Arctic Subpolar coil state estimate and observations, Massachusetts Institute of Technology Abstract: The Atlantic Water ( AW ) Layer in the Arctic Subpolar coil country Estimate ( ASTE ), a regional, medium-resolution coupled ocean-sea ice country estimate, is analyzed for the first clock using bounding isopycnals. A billow of AW, marked by rapid increases in hateful AW Layer electric potential temperature and AW Layer thickness, begins two years into the state estimate ( 2004 ) and traverses the Arctic Ocean along boundary current pathways at approximately 2 cm/s. The soar besides alters AW flow direction and accelerate including a significant about-face in flow direction along the Lomonosov Ridge. The soar results in a raw quasi-steady AW flow from 2010 through the end of the state estimate period in 2017. The time-mean AW circulation during this time period indicates a significant measure of AW spreads over the Lomonosov Ridge preferably than directly returning along the ridge to Fram Strait. A three-layer depiction of ASTE ‘s overturning circulation within the AO indicates AW is converted to colder, fresher Surface Layer water at a faster rate than is transformed to Bottom Water ( 1.2 Sv vs. 0.4 Sv ). Observed AW properties compared to ASTE end product indicate increasing misfit during the model period with ASTE ‘s AW Layer by and large being warmer and thicker than in observations. Keywords: ECCO Products Used: ASTEURL: https://dspace.mit.edu/handle/1721.1/129018 Other URLs:
Asbjørnsen, Helene (2020). Mechanisms and pathways of ocean heat anomalies in the Arctic-Atlantic region, University of Bremen. Title: Mechanisms and pathways of ocean heat anomalies in the Arctic-Atlantic region Type: thesis Publication: University of Bremen Author(s): Asbjørnsen, Helene Year: 2020 Formatted Citation: Asbjørnsen, H., 2020 : Mechanisms and pathways of ocean heat anomalies in the Arctic-Atlantic region, University of Bergen Abstract: Along the Atlantic water nerve pathway, from the Gulf Stream in the south to the Arctic Ocean in the north, unevenness in ocean estrus message is pronounced on interannual to decadal time scales. Ocean estrus anomalies in this Arctic-Atlantic sector are known to affect Arctic sea ice extent, marine ecosystems, and continental climate. however, there is at deliver neither consensus nor any complete sympathy of the mechanisms causing such heat anomalies. This dissertation obtains a more robust understand of regional ocean heat message variability by assessing the mechanism and pathways of ocean heat anomalies in the Arctic-Atlantic area. The results are presented in three papers. The first newspaper investigates the radio link between a variable Nordic Seas inflow and large-scale ocean circulation changes upstream. Using a global, eddy-permitting ocean hind- cast together with a Lagrangian analysis creature, numeral particles are seeded at the Iceland-Scotland Ridge and tracked backward in time. water from the subtropics sup- plied by the North Atlantic Current ( NAC ) is found to be the main component of the Nordic Seas inflow ( 64 % ), while 26 % of the inflow has a subpolar or Arctic origin. Different atmospheric patterns are seen to affect the circulation forte along the advective pathways, a well as the provide of subtropical and Arctic-origin water to the ridge through shifts in the NAC and the subpolar front. A full-bodied associate between a eminent transmit of Arctic-origin water and a cold and fresh inflow is furthermore established, while a high ecstasy of subtropical water leads to higher inflow salinities. The second composition investigates the mechanism of interannual heat message variability in the norwegian Sea downstream of the Iceland-Scotland Ridge, using a state-of-the-art ocean state estimate and closed hotness budget diagnostics. Ocean advection is found to be the primary contributor to heat content variability in the Atlantic knowledge domain of the norwegian Sea, although local airfoil fluxes besides play an active function. anomalous heat advection furthermore depends on the strength of the Atlantic water inflow and the conditions upstream of the ridge. Combined, the two papers demonstrate the importance of coil dynamics and large-scale scent storm in causing unevenness at the ridge, while highlighting the impacts on norwegian Sea heat contentedness downriver. For the third base newspaper, warming trends in the Barents Sea and Fram Strait are explored, and, therefore, the mechanisms underlying holocene Atlantification of the Arctic Ocean. The Barents Sea is seen to transition to a warm country, with reduce ocean methamphetamine concentrations and Atlantic body of water extending farther poleward. The mechanism driving the thaw are, however, found to be regionally dependent and not stationary in clock. In the ice-free region, ocean advection is found to be a major driver of the warming tendency due to increasing inflow temperatures in the late 1990s and early 2000s, while reduced ocean heat loss is contributing to the warming swerve from the mid-2000s and forth. A considerable upper-ocean warm and a cut stratification is seen in the ice- cover northwestern Barents Sea. however, in contrast to what has been previously hypothesized, the results do not point to increased upward estrus fluxes from the Atlantic water level to the Arctic coat layer as the reference of the upper-ocean calefacient. The add of Atlantic estrus to the Nordic Seas and the Arctic Ocean has been scrutinized using both Lagrangian methods and heat budget diagnostics. Combined, the three papers demonstrate the authoritative role of ocean heat transport in causing regional heat content variability and deepen in the Arctic-Atlantic region. A better understand- ing of interannual to decadal ocean hotness capacity variability has implications for future prediction efforts, and for how we understand the ocean ‘s function in ongoing and future climate change. Keywords: ECCO Products Used: ECCO-V4URL: https://hdl.handle.net/11250/2712025 Other URLs:
Cullen, Kerstin (2020). Wind-current Interactions of the Sri Lanka Dome and Tropical Indian Ocean, Oregon Statue University. Title: Wind-current Interactions of the Sri Lanka Dome and Tropical Indian Ocean Type: thesis Publication: Oregon Statue University Author(s): Cullen, Kerstin Year: 2020 Formatted Citation: Cullen, K., 2020 : Wind-current Interactions of the Sri Lanka Dome and Tropical Indian Ocean, Oregon State University Abstract: The southwest monsoon, which may be idealized as the north movement of the intertropical convergence zone in the indian Ocean associated with differential heat of land and ocean, brings a seasonal worker reversion of currents and winds in the Bay of Bengal and the Arabian Sea. Atmospheric convection from monsoon activeness in the Bay of Bengal drives precipitation over the indian Subcontinent, which is crucial to agriculture and economic prosperity in the region. however, regional complex air-sea interaction, which is thought to regulate pitch of precipitation, is not fully understand. Ocean sea surface temperature is critical to atmospheric deep convection, but winds can modify the temperature through enhance shuffle, Ekman ecstasy and pump, and control on disruptive air-sea fluxes ( latent and reasonable heat ). We examine how winds interact with currents during the southwest monsoon, and explore how this interaction feeds back on temperature and salt development within the mix layer. The Sri Lanka Dome ( SLD ) is an upwelling recirculation feature of speech found in the Southwest Monsoon Current that may influence air-sea interaction in the Bay of Bengal. To quantify variability and understand the dynamics of the SLD, the twenty-three-year meter series of AVISO satellite absolute dynamic topography ( ADT ) is used to track and measure the intensity of the SLD. The SLD shows both a hard seasonal worker motorbike and considerable interannual variability. The dome typically forms in May to the east of Sri Lanka, intensifies through July and August, and migrates to the north and then east before dissipating in September off the coast of northeastern Sri Lanka. SLD formation and dissipation, migration path, and order of magnitude display considerable interannual unevenness, with east motion significantly correlated with the strength of the indian Ocean Dipole. We besides quantify the SLD home structure using the Argo float record. The SLD is associated with an elevated ( 15-40 molarity ) pycnocline. The sea open temperature reply is building complex as the subsurface temperature social organization is not inevitably monotonic with altitude. We besides address forcing by distant and local anesthetic winds and their relative to the SLD. Strong wind stress coil from the wind jet south of Sri Lanka explains variability in Sri Lanka Dome during the first two months after formation until the SLD migrates north out of the wind instrument jet ‘s influence. Cool SST signals occur intermittently within the upwelling Sri Lanka Dome ( SLD ) but are strong enough to impact atmospheric processes during the Southwest Monsoon. several SST cool event temperatures fall below 27.5°C, potentially disrupting organized atmospheric deep convection. Cool SST events are brief ( 1 workweek ) compared to the seasonal worker 1-4 month life of the SLD. And, while cool anomalies are more probably to occur during periods of strong upwelling within the Sri Lanka Dome, strong periods of upwelling frequently occur with no cool of SST. Cool SST signals are frequently displace southeastward of the ADT low. classical Ekman pump ( w_c ) has been cited as a electric potential mechanism for introducing cool anomalies within the SLD and the Southwest Monsoon Current ( SMC ) system. however, the region of maximum w_c is west of the SLD preferably than co-located with cool anomalies that are observed along its southeastern flank. Stern ‘s 1965 theory adds a weakly nonlinear correction ( w_zeta ) to classical Ekman pump ; w_zeta depends on the wind stress ( tau ) and lateral pass gradients in geostrophic vorticity ( zeta ). strong winds and vorticity gradients exist within the SMC system along the east side of the SLD. ERA5 wind data and AVISO geostrophic velocities are used to quantify the spatial distribution of weakly nonlinear upwelling within the SLD. We estimate that w_zeta can exceed w_c. The diagnose upwelling regimes are then compared to cool signals from ERA5 SST. The inner structure ( measured from Argo floats ) shows shallower assorted layer depths occur in regions of positive w_zeta relative to other regions with exchangeable fart tension order of magnitude. ECCO ocean state estimates monthly heat budget analysis shows that cool events frequently occur despite a net positive airfoil heat flow into the ocean, and indicates that w_zeta impacts SST through vertical advection and by shoaling the MLD, which changes the timescale of response to surface estrus flux. erect advection and enhance diffusivity are primary controls on the total heat inclination in the region. The indian Ocean Dipole ( IOD ) is associated with increase east-west temperature gradients and basin-scale changes in the winds over the tropical indian Ocean. Changes to wind force may impact the response of the surface mix level during the southwest monsoon. During the onset of the monsoon, positive IOD events strengthen the wind tension in the northerly Bay of Bengal and the Arabian Sea, but decrease curl along 10°N. We use the ECCO ocean state estimates to quantify characteristics of the mix layer during strong IOD events and contrast plus and negative modes. Heat and salt budgets show how wind storm impacts the mix layer under different dipole regimes ( both by Ekman transportation and erect mix ). Although dispersion has the strongest seasonal impact on the estrus tendency of the assorted layer, diffusion contributes less ( proportional to advection ) to year-to-year differences in inflame tendency between phases of the IOD. The largest contribution of diffusion to year-to-year differences occurs during the attack of the monsoon, which can vary in timing by several weeks. The salt tendency in the shuffle layer is controlled by advection except in the Bay of Bengal. There, the diffusing salt tendency is comparable to both climatological salt leaning and unevenness during IOD events. Keywords: ECCO Products Used: ECCO-V4URL: https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/tx31qr629 Other URLs:
Lai, Yen Ru; Wang, Lei; Bevis, Michael; Fok, Hok Sum; Alanazi, Abdullah (2020). Truncated Singular Value Decomposition Regularization for Estimating Terrestrial Water Storage Changes Using GPS: A Case Study over Taiwan, Remote Sensing, 23 (12), 3861, 10.3390/rs12233861. Title: Truncated Singular Value Decomposition Regularization for Estimating Terrestrial Water Storage Changes Using GPS : A Case Study over Taiwan Type: Journal article Publication: Remote Sensing Author(s): Lai, Yen Ru ; Wang, Lei ; Bevis, Michael ; Fok, Hok Sum ; Alanazi, Abdullah Year: 2020 Formatted Citation: Lai, Y. R., L. Wang, M. Bevis, H. S. Fok, and A. Alanazi, 2020 : Truncated Singular Value Decomposition Regularization for Estimating Terrestrial Water Storage Changes Using GPS : A Case Study over Taiwan. Remote Sensing, 12 ( 23 ), 3861, doi:10.3390/rs12233861 Abstract: It is a typical ill-conditioned trouble to invert GPS-measured loading deformations for sublunar water memory ( TWS ) changes. While former studies normally applied the 2nd-order Tikhonov regularization, we demonstrate the truncate curious value decay ( TSVD ) regulation can besides be applied to solve the inversion problem. Given the fact that a regulate estimate is constantly biased, it is valuable to obtain estimates with different methods for better assessing the uncertainty in the solution. We besides show the cosmopolitan crabbed validation ( GCV ) can be applied to select the truncation term for the TSVD regularization, producing a solution that minimizes predictive mean-square errors. Analyzing decade-long GPS position fourth dimension series over Taiwan, we apply the TSVD regulation to estimate average annual TWS variations for Taiwan. Our results show that the TSVD estimates can sufficiently fit the GPS-measured annual displacements, resulting in randomly distributed supplanting residuals with a nothing mean and minor standard deviation ( around 0.1 curium ). On the island-wide plate, the GPS-inferred annual TWS variation is reproducible with the general seasonal worker bicycle of precipitations. however, on smaller spatial scales, we observe significant differences between the TWS changes estimated by GPS and simulated by GLDAS land open models in terms of spatiotemporal form and magnitude. Based on the results, we discuss some challenges in the portrayal of TWS variations using GPS observations over Taiwan. Keywords: ECCO Products Used: ECCO-KFSURL: https://www.mdpi.com/2072-4292/12/23/3861 Other URLs:
Sutterley, Tyler C.; Velicogna, Isabella; Hsu, Chia-Wei (2020). Self-Consistent Ice Mass Balance and Regional Sea Level From Time-Variable Gravity, Earth and Space Science, 3 (7), 10.1029/2019EA000860. Title: self-consistent Ice Mass Balance and Regional Sea Level From Time-Variable Gravity Type: Journal article Publication: Earth and Space Science Author(s): Sutterley, Tyler C. ; Velicogna, Isabella ; Hsu, Chia-Wei Year: 2020 Formatted Citation: Sutterley, T. C., I. Velicogna, and C. Hsu, 2020 : self-consistent Ice Mass Balance and Regional Sea Level From Time-Variable Gravity. Earth and Space Science, 7 ( 3 ), doi:10.1029/2019EA000860 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2019EA000860 Other URLs:
Galperin, Boris; Sukoriansky, Semion (2020). Quasinormal scale elimination theory of the anisotropic energy spectra of atmospheric and oceanic turbulence, Physical Review Fluids, 6 (5), 063803, 10.1103/PhysRevFluids.5.063803. Title: Quasinormal scale elimination theory of the anisotropic energy spectrum of atmospheric and oceanic turbulence Type: Journal article Publication: Physical Review Fluids Author(s): Galperin, Boris ; Sukoriansky, Semion Year: 2020 Formatted Citation: Galperin, B., and S. Sukoriansky, 2020 : Quasinormal scale elimination theory of the anisotropic energy spectrum of atmospheric and oceanic turbulence. Physical Review Fluids, 5 ( 6 ), 063803, doi:10.1103/PhysRevFluids.5.063803 Abstract: Keywords: ECCO Products Used: LLC_hiresURL: https://link.aps.org/doi/10.1103/PhysRevFluids.5.063803 Other URLs:
Stephanie Dutkiewicz, Mark Baird, Stefano Ciavatta, Stephanie Henson, AnnaHickman, Cecile Rousseaux and Charles Stock (2020). Synergy between Ocean Colour and Biogeochemical/ Ecosystem Models. Title: Synergy between Ocean Colour and Biogeochemical/ Ecosystem Models Type: Report Publication: Author(s): Stephanie Dutkiewicz, Mark Baird, Stefano Ciavatta, Stephanie Henson, AnnaHickman, Cecile Rousseaux and Charles Stock Year: 2020 Formatted Citation: Stephanie Dutkiewicz, M. B., 2020 : synergy between Ocean Colour and Biogeochemical/ Ecosystem Models.., 184pp pp. department of the interior : hypertext transfer protocol : //dx.doi.org/10.25607/OBP-711. Abstract: Keywords: ECCO Products Used: ECCO2URL: http://hdl.handle.net/11329/1194 Other URLs:
Farrar, J. Thomas; D’Asaro, Eric; Rodriguez, Ernesto; Shcherbina, Andrey; Czech, Erin; Matthias, Paul; Nicholas, Sommer; Bingham, Frederick; Mahedevan, Amala; Omand, Melissa; Rainville, Luc; Lee, Craig; Chelton, Dudley; Samelson, Roger; O’Neill, Larry; Lenain, Luc; Menemenlis, Dimitris; Perkovic-Martin, Dragana; Mouroulis, Pantazis; Gierach, Michelle; Thompson, David; Wineteer, Alexander; Torres, Hector; Klein, Patrice; Thompson, Andrew; McWilliams, James C.; Molemaker, Jeroen; Barkan, Roy; Wenegrat, Jacob; Rocha, Cesar; Jacobs, Gregg; D’Addezio, Joseph; de Halleux, Sebastien; Jenkins, Richard (2020). S-MODE: The Sub-Mesoscale Ocean Dynamics Experiment, IGARSS 2020 – 2020 IEEE International Geoscience and Remote Sensing Symposium, 3533-3536, 10.1109/IGARSS39084.2020.9323112. Title: S-MODE : The Sub-Mesoscale Ocean Dynamics Experiment Type: Conference Proceedings Publication: IGARSS 2020 – 2020 IEEE International Geoscience and Remote Sensing Symposium Author(s): Farrar, J. Thomas ; D’Asaro, Eric ; Rodriguez, Ernesto ; Shcherbina, Andrey ; Czech, Erin ; Matthias, Paul ; Nicholas, Sommer ; Bingham, Frederick ; Mahedevan, Amala ; Omand, Melissa ; Rainville, Luc ; Lee, Craig ; Chelton, Dudley ; Samelson, Roger ; O’Neill, Larry ; Lenain, Luc ; Menemenlis, Dimitris ; Perkovic-Martin, Dragana ; Mouroulis, Pantazis ; Gierach, Michelle ; Thompson, David ; Wineteer, Alexander ; Torres, Hector ; Klein, Patrice ; Thompson, Andrew ; McWilliams, James C. ; Molemaker, Jeroen ; Barkan, Roy ; Wenegrat, Jacob ; Rocha, Cesar ; Jacobs, Gregg ; D’Addezio, Joseph ; de Halleux, Sebastien ; Jenkins, Richard Year: 2020 Formatted Citation: Farrar, J. T. and Coauthors, 2020 : S-MODE : The Sub-Mesoscale Ocean Dynamics Experiment. IGARSS 2020 – 2020 IEEE International Geoscience and Remote Sensing Symposium IEEE, 3533-3536 pp. doi:10.1109/IGARSS39084.2020.9323112. Abstract: Keywords: ECCO Products Used: LLC_hiresURL: https://ieeexplore.ieee.org/document/9323112/ Other URLs:
Liang Xi, Zhao Fu, Li Chunhua, Zhang Lin, Li Bingrui (2020). Evaluation of ArcIOPS sea ice forecasting products during the ninth CHINARE-Arctic in summer 2018, Advances in Polar Science, 1 (31), 14-25, dx.doi.org/10.13679/j.advps.2019.0019. Title: Evaluation of ArcIOPS sea ice bode products during the one-ninth CHINARE-Arctic in summer 2018 Type: Journal article Publication: Advances in Polar science Author(s): Liang Xi, Zhao Fu, Li Chunhua, Zhang Lin, Li Bingrui Year: 2020 Formatted Citation: Liang, Xi ; Zhao, Fu ; Li, Chunhua ; Zhang, Lin ; Li, Bingrui, 2020 : evaluation of ArcIOPS sea internal-combustion engine prediction products during the ninth CHINARE-Arctic in summer 2018. Advances in Polar Science, 31 ( 1 ), 14-25, department of the interior : hypertext transfer protocol : //dx.doi.org/10.13679/j.advps.2019.0019 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://www.aps-polar.org/paper/2020/31/01/A200302000001 Other URLs:
Pefanis, Vasileios; Losa, Svetlana N.; Losch, Martin; Janout, Markus A.; Bracher, Astrid (2020). Amplified Arctic Surface Warming and Sea Ice Loss Due to Phytoplankton and Colored Dissolved Material, Geophysical Research Letters, 21 (47), 10.1029/2020GL088795. Title: Amplified Arctic Surface Warming and Sea Ice Loss Due to Phytoplankton and Colored Dissolved Material Type: Journal article Publication: Geophysical Research Letters Author(s): Pefanis, Vasileios ; Losa, Svetlana N. ; Losch, Martin ; Janout, Markus A. ; Bracher, Astrid Year: 2020 Formatted Citation: Pefanis, V., S. N. Losa, M. Losch, M. A. Janout, and A. Bracher, 2020 : Amplified Arctic Surface Warming and Sea Ice Loss Due to Phytoplankton and Colored Dissolved Material. Geophys. Res. Lett., 47 ( 21 ), doi:10.1029/2020GL088795 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://onlinelibrary.wiley.com/doi/10.1029/2020GL088795 Other URLs:
Portela, Esther; Kolodziejczyk, Nicolas; Vic, Clément; Thierry, Virginie (2020). Physical Mechanisms Driving Oxygen Subduction in the Global Ocean, Geophysical Research Letters, 17 (47), 10.1029/2020GL089040. Title: Physical Mechanisms Driving Oxygen Subduction in the Global Ocean Type: Journal article Publication: Geophysical Research Letters Author(s): Portela, Esther ; Kolodziejczyk, Nicolas ; Vic, Clément ; Thierry, Virginie Year: 2020 Formatted Citation: Portela, E., N. Kolodziejczyk, C. Vic, and V. Thierry, 2020 : physical Mechanisms Driving Oxygen Subduction in the Global Ocean. Geophys. Res. Lett., 47 ( 17 ), doi:10.1029/2020GL089040 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/10.1029/2020GL089040 Other URLs:
Serykh, I. V.; Sonechkin, D. M. (2020). Interrelations Between Temperature Variations in Oceanic Depths and the Global Atmospheric Oscillation, Pure and Applied Geophysics, 12 (177), 5951-5967, 10.1007/s00024-020-02615-9. Title: Interrelations Between Temperature Variations in Oceanic Depths and the Global Atmospheric Oscillation Type: Journal article Publication: Pure and Applied Geophysics Author(s): Serykh, I. V. ; Sonechkin, D. M. Year: 2020 Formatted Citation: Serykh, I. V., and D. M. Sonechkin, 2020 : Interrelations Between Temperature Variations in Oceanic Depths and the Global Atmospheric Oscillation. Pure and Applied Geophysics, 177 ( 12 ), 5951-5967, doi:10.1007/s00024-020-02615-9 Abstract: Keywords: ECCO Products Used: ECCO-V4 ; GECCO2URL: http://link.springer.com/10.1007/s00024-020-02615-9 Other URLs:
Cheng, Lijing; Trenberth, Kevin E.; Gruber, Nicolas; Abraham, John P.; Fasullo, John T.; Li, Guancheng; Mann, Michael E.; Zhao, Xuanming; Zhu, Jiang (2020). Improved Estimates of Changes in Upper Ocean Salinity and the Hydrological Cycle, Journal of Climate, 23 (33), 10357-10381, 10.1175/JCLI-D-20-0366.1. Title: Improved Estimates of Changes in Upper Ocean Salinity and the Hydrological Cycle Type: Journal article Publication: Journal of Climate Author(s): Cheng, Lijing ; Trenberth, Kevin E. ; Gruber, Nicolas ; Abraham, John P. ; Fasullo, John T. ; Li, Guancheng ; Mann, Michael E. ; Zhao, Xuanming ; Zhu, Jiang Year: 2020 Formatted Citation: Cheng, L. and Coauthors, 2020 : Improved Estimates of Changes in Upper Ocean Salinity and the Hydrological Cycle. J. Clim., 33 ( 23 ), 10357-10381, doi:10.1175/JCLI-D-20-0366.1 Abstract: Ocean salt records the hydrological cycle and its changes, but data scarcity and the large changes in sampling make the reconstructions of long-run brininess changes challenging. here, we present a new experimental estimate of changes in ocean salt since 1960 from the surface to 2000 m. We overcome some of the inconsistencies present in existing salt reconstructions by using an interpolation technique that uses data on the spatiotemporal covariability of brininess taken from model simulations. The interpolation proficiency is comprehensively evaluated using recent Argo-dominated observations through subsample tests. The newly merchandise strengthens former findings that ocean surface and subsurface salt contrasts have increased ( i, the existing brininess radiation pattern has amplified ). We quantify this contrast by assessing the deviation between the salt in regions of high and first gear salt averaged over the top 2000 megabyte, a metric function we refer to as SC2000. The increase in SC2000 is highly distinguishable from the sampling error and less affected by interannual variability and sampling error than if this metric was computed just for the surface. SC2000 increased by 1.9 % ± 0.6 % from 1960 to 1990 and by 3.3 % ± 0.4 % from 1991 to 2017 ( 5.2 % ± 0.4 % for 1960-2017 ), indicating an acceleration of the convention amplification in holocene decades. Combining this estimate with exemplary simulations, we show that the change in SC2000 since 1960 emerges intelligibly as an anthropogenetic bespeak from the natural variability. Based on the salinity-contrast metrics and model simulations, we find a water system cycle amplification of 2.6 % ± 4.4 % K −1 since 1960, with the larger mistake than salt measured chiefly being due to model doubt. Keywords: ECCO Products Used: ECCO-V4URL: https://journals.ametsoc.org/doi/10.1175/JCLI-D-20-0366.1 Other URLs:
Yang, Yang; McWilliams, James C.; Liang, X. San; Zhang, Hong; Weisberg, Robert H.; Liu, Yonggang; Menemenlis, Dimitris (2020). Spatial and Temporal Characteristics of the Submesoscale Energetics in the Gulf of Mexico, Journal of Physical Oceanography, 10.1175/JPO-D-20-0247.1. Title: Spatial and Temporal Characteristics of the Submesoscale Energetics in the Gulf of Mexico Type: Journal article Publication: Journal of Physical Oceanography Author(s): Yang, Yang ; McWilliams, James C. ; Liang, X. San ; Zhang, Hong ; Weisberg, Robert H. ; Liu, Yonggang ; Menemenlis, Dimitris Year: 2020 Formatted Citation: Yang, Y., J. C. McWilliams, X. S. Liang, H. Zhang, R. H. Weisberg, Y. Liu, and D. Menemenlis, 2020 : spatial and temporal Characteristics of the Submesoscale Energetics in the Gulf of Mexico. Journal of Physical Oceanography, doi:10.1175/JPO-D-20-0247.1 Abstract: The submesoscale energetics of the eastern Gulf of Mexico ( GoM ) are. diagnosed using outputs from a 1/48° MITgcm model. Employed is a recently-developed, localize multiscale energetics formalism with three temporal scale ranges ( or scale windows ), namely, a setting flow window, a mesoscale window, and a submesoscale window. It is found that the energy cascades are highly inhomogeneous in space. Over the eastern continental slope of the Campeche Bank, the submesoscale eddies are generated via barotropic imbalance, with ahead cascades of kinetic energy ( KE ) following a weak seasonal worker variation. In the deep basin of the eastern GoM, the submesoscale KE exhibits a seasonal cycle, peaking in winter, maintained via baroclinic instability, with advancing available potential department of energy ( APE ) cascades in the blend layer, followed by a impregnable buoyancy conversion. A spatially-coherent pool of inverse KE cascade is found to extract energy from the submesoscale KE reservoir in this region to replenish the background flow. The northern GoM features the strongest submesoscale signals with a alike seasonality as seen in the deep basin. The dominant source for the submesoscale KE during winter is from buoyancy conversion and besides from the forward KE cascades from mesoscale processes. To maintain the balance, the excess submesoscale KE must be dissipated by smaller-scale processes via a advancing cascade, implying a direct route to fine-scale waste. Our results highlight that the character of submesoscale turbulence in the ocean department of energy cycle is region- and time-dependent. Keywords: ECCO Products Used: LLC_hiresURL: https://journals.ametsoc.org/view/journals/phoc/aop/JPO-D-20-0247.1/JPO-D-20-0247.1.xml Other URLs:
Liu, Junjie; Wennberg, Paul O.; Parazoo, Nicholas C.; Yin, Yi; Frankenberg, Christian (2020). Observational Constraints on the Response of High-Latitude Northern Forests to Warming, AGU Advances, 4 (1), 10.1029/2020AV000228. Title: Observational Constraints on the Response of High-Latitude Northern Forests to Warming Type: Journal article Publication: AGU Advances Author(s): Liu, Junjie ; Wennberg, Paul O. ; Parazoo, Nicholas C. ; Yin, Yi ; Frankenberg, Christian Year: 2020 Formatted Citation: Liu, J., P. O. Wennberg, N. C. Parazoo, Y. Yin, and C. Frankenberg, 2020 : experimental Constraints on the Response of High-Latitude Northern Forests to Warming. AGU Advances, 1 ( 4 ), doi:10.1029/2020AV000228 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://onlinelibrary.wiley.com/doi/10.1029/2020AV000228 Other URLs:
Bigdeli, A.; Nguyen, A. T.; Pillar, H. R.; Ocaña, V.; Heimbach, P. (2020). Atmospheric Warming Drives Growth in Arctic Sea Ice: A Key Role for Snow, Geophysical Research Letters, 20 (47), 10.1029/2020GL090236. Title: Atmospheric Warming Drives Growth in Arctic Sea Ice : A Key Role for Snow Type: Journal article Publication: Geophysical Research Letters Author(s): Bigdeli, A. ; Nguyen, A. T. ; Pillar, H. R. ; Ocaña, V. ; Heimbach, P. Year: 2020 Formatted Citation: Bigdeli, A., A. T. Nguyen, H. R. Pillar, V. Ocaña, and P. Heimbach, 2020 : atmospheric Warming Drives Growth in Arctic Sea Ice : A Key Role for Snow. Geophys. Res. Lett., 47 ( 20 ), doi:10.1029/2020GL090236 Abstract: Keywords: ECCO Products Used: ASTE ; adjointURL: https://onlinelibrary.wiley.com/doi/10.1029/2020GL090236 Other URLs:
Aubone, N.; Palma, E.D.; Piola, A.R. (2020). The surface salinity maximum of the South Atlantic, Progress in Oceanography, 102499, 10.1016/j.pocean.2020.102499. Title: The surface salt utmost of the South Atlantic Type: Journal article Publication: Progress in Oceanography Author(s): Aubone, N. ; Palma, E.D. ; Piola, A.R. Year: 2020 Formatted Citation: Aubone, N., E. Palma, and A. Piola, 2020 : The come on brininess maximal of the South Atlantic. advancement in Oceanography, 102499, doi:10.1016/j.pocean.2020.102499 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://linkinghub.elsevier.com/retrieve/pii/S0079661120302342 Other URLs:
England, Mark R.; Wagner, Till J. W.; Eisenman, Ian (2020). Modeling the breakup of tabular icebergs, Science Advances, 51 (6), eabd1273, 10.1126/sciadv.abd1273. Title: Modeling the separation of tabular iceberg Type: Journal article Publication: Science Advances Author(s): England, Mark R. ; Wagner, Till J. W. ; Eisenman, Ian Year: 2020 Formatted Citation: England, M. R., T. J. W. Wagner, and I. Eisenman, 2020 : Modeling the dissolution of tabular iceberg. science Advances, 6 ( 51 ), eabd1273, doi:10.1126/sciadv.abd1273 Abstract: about half of the fresh water blend from the Antarctic Ice Sheet into the southerly Ocean occurs in the form of big tabular iceberg that calve off the continent ‘s methamphetamine shelves. however, because of difficulties in adequately simulating their dissolution, boastfully Antarctic crisphead lettuce to date have either not been represented in models or represented but with no separation system such that they systematically survive besides long and travel besides far compared with observations. hera, we introduce a representation of iceberg fracturing using a dissolution schema based on the “ footloose mechanism. ” We optimize the parameters of this separation dodge by forcing the iceberg model with an ocean state estimate and comparing the modeled crisphead lettuce trajectories and areas with the Antarctic Iceberg Tracking Database. We show that including bombastic iceberg and a representation of their separation well affects the iceberg meltwater distribution, with implications for the circulation and stratification of the Southern Ocean. Keywords: ECCO Products Used: ECCO2URL: https://advances.sciencemag.org/lookup/doi/10.1126/sciadv.abd1273 Other URLs:
Fayman, P. A.; Prants, S. V.; Budyansky, M. V.; Uleysky, M. Yu. (2020). New Circulation Features in the Okhotsk Sea from a Numerical Model, Izvestiya, Atmospheric and Oceanic Physics, 6 (56), 618-631, 10.1134/S0001433820060043. Title: New Circulation Features in the Okhotsk Sea from a numeral model Type: Journal article Publication: Izvestiya, Atmospheric and Oceanic Physics Author(s): Fayman, P. A. ; Prants, S. V. ; Budyansky, M. V. ; Uleysky, M. Yu. Year: 2020 Formatted Citation: Fayman, P. A., S. V. Prants, M. V. Budyansky, and M. Y. Uleysky, 2020 : New Circulation Features in the Okhotsk Sea from a numeric Model. Izvestiya, Atmospheric and Oceanic Physics, 56 ( 6 ), 618-631, doi:10.1134/S0001433820060043 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://link.springer.com/10.1134/S0001433820060043 Other URLs:
Balwada, Dhruv; LaCasce, Joseph H.; Speer, Kevin G.; Ferrari, Raffaele (2020). Relative Dispersion in the Antarctic Circumpolar Current, Journal of Physical Oceanography, 10.1175/JPO-D-19-0243.1. Title: Relative Dispersion in the Antarctic Circumpolar Current Type: Journal article Publication: Journal of Physical Oceanography Author(s): Balwada, Dhruv ; LaCasce, Joseph H. ; Speer, Kevin G. ; Ferrari, Raffaele Year: 2020 Formatted Citation: Balwada, D., J. H. LaCasce, K. G. Speer, and R. Ferrari, 2020 : relative dispersion in the Antarctic Circumpolar Current. Journal of Physical Oceanography, doi:10.1175/JPO-D-19-0243.1 Abstract: Stirring in the subsurface Southern Ocean is examined using RAFOS float trajectories, collected during the Diapycnal and Isopycnal Mixing Experiment in the southerly Ocean ( DIMES ), along with particle trajectories from a regional eddy permitting model. A cardinal question is the extent to which the rousing is local, by eddies comparable in size to the couple interval, or non-local, by eddies at larger scales. To test this, we examine metrics based on averaging in prison term and in space. The model particles exhibit non-local dispersion, as expected for a limited resolution numeric exemplary that does not resolve flows at scales smaller than ~ 10days or ~ 20-30km. The different metrics are less consistent for the RAFOS floats ; proportional distribution, kurtosis and relative diffusivity suggest non-local dispersion as they are coherent with the model within error, while finite size Lyapunov exponents ( FSLE ) suggests local anesthetic dispersion. This occurs for two reasons : ( i ) limited sampling of the inertial length scales and relatively little number of pairs hinder statistical robustness in time-based metrics, and ( two ) some space-based metrics ( FSLE, 2 north dakota order structure functions ), which do not average over wave motions and are reflective of the energizing energy distribution, are probably unsuitable to infer dispersion characteristics if the hang airfield includes energetic wave-like flows that do not disperse particles. The proportional diffusivity, which is besides a space-based system of measurement, allows averaging over waves to infer the dispersion characteristics. Hence, given the error characteristics of the metrics and data used here, the arouse in the DIMES region is likely to be non-local at scales of 5-100km. Keywords: ECCO Products Used: OCCAURL: https://journals.ametsoc.org/view/journals/phoc/aop/JPO-D-19-0243.1/JPO-D-19-0243.1.xml Other URLs:
Song, Hajoon; Marshall, John; McGillicuddy, Dennis J.; Seo, Hyodae (2020). Impact of Current-Wind Interaction on Vertical Processes in the Southern Ocean, Journal of Geophysical Research: Oceans, 4 (125), 10.1029/2020JC016046. Title: Impact of Current-Wind Interaction on Vertical Processes in the southerly Ocean Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Song, Hajoon ; Marshall, John ; McGillicuddy, Dennis J. ; Seo, Hyodae Year: 2020 Formatted Citation: Song, H., J. Marshall, D. J. McGillicuddy, and H. Seo, 2020 : shock of Current-Wind Interaction on Vertical Processes in the southern Ocean. J. Geophys. Res. Ocean., 125 ( 4 ), doi:10.1029/2020JC016046 Abstract: Keywords: ECCO Products Used: OCCAURL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2020JC016046 Other URLs:
Wu, Yang; Wang, Zhaomin; Liu, Chengyan; Lin, Xia (2020). Impacts of High-Frequency Atmospheric Forcing on Southern Ocean Circulation and Antarctic Sea Ice, Advances in Atmospheric Sciences, 5 (37), 515-531, 10.1007/s00376-020-9203-x. Title: Impacts of High-Frequency Atmospheric Forcing on Southern Ocean Circulation and Antarctic Sea Ice Type: Journal article Publication: Advances in Atmospheric Sciences Author(s): Wu, Yang ; Wang, Zhaomin ; Liu, Chengyan ; Lin, Xia Year: 2020 Formatted Citation: Wu, Y., Z. Wang, C. Liu, and X. Lin, 2020 : Impacts of High-Frequency Atmospheric Forcing on Southern Ocean Circulation and Antarctic Sea Ice. Advances in Atmospheric Sciences, 37 ( 5 ), 515-531, doi:10.1007/s00376-020-9203-x Abstract: Keywords: ECCO Products Used: ECCO2URL: http://link.springer.com/10.1007/s00376-020-9203-x Other URLs:
Jones, Daniel C.; Boland, Emma; Meijers, Andrew J. S.; Forget, Gael; Josey, Simon; Sallée, Jean-Baptiste; Shuckburgh, Emily (2020). The Sensitivity of Southeast Pacific Heat Distribution to Local and Remote Changes in Ocean Properties, Journal of Physical Oceanography, 3 (50), 773-790, 10.1175/JPO-D-19-0155.1. Title: The Sensitivity of Southeast Pacific Heat Distribution to Local and Remote Changes in Ocean Properties Type: Journal article Publication: Journal of Physical Oceanography Author(s): Jones, Daniel C. ; Boland, Emma ; Meijers, Andrew J. S. ; Forget, Gael ; Josey, Simon ; Sallée, Jean-Baptiste ; Shuckburgh, Emily Year: 2020 Formatted Citation: Jones, D. C., E. Boland, A. J. S. Meijers, G. Forget, S. Josey, J. Sallée, and E. Shuckburgh, 2020 : The Sensitivity of Southeast Pacific Heat Distribution to Local and Remote Changes in Ocean Properties. Journal of Physical Oceanography, 50 ( 3 ), 773-790, doi:10.1175/JPO-D-19-0155.1 Abstract: The Southern Ocean features breathing pathways that transport coat waters into the subsurface thermocline on time scales from decades to centuries, sequestering anomalies of heat and carbon aside from the atmosphere and thereby regulating the pace of come on warming. Despite its importance for climate sensitivity, the factors that control the distribution of heat along these pathways are not well understand. In this study, we use an observationally constrained, physically consistent global ocean model to examine the sensitivity of heat distribution in the recently ventilated subsurface Pacific ( RVP ) sector of the Southern Ocean to changes in ocean temperature and brininess. First, we define the RVP using numerical passive tracer release experiments that highlight the ventilation pathways. following, we use an corps de ballet of adjoint sensitivity experiments to quantify the sensitivity of the RVP heating system content to changes in ocean temperature and salt. In terms of sensitivities to surface ocean properties, we find that RVP heat content is most sensible to anomalies along the Antarctic Circumpolar Current ( ACC ), upstream of the subduction hotspots. In terms of sensitivities to subsurface ocean properties, we find that RVP heating system content is most sensitive to basin-scale changes in the subtropical Pacific Ocean, around the lapp latitudes as the RVP. Despite the localized nature of mode body of water subduction hotspots, changes in basin-scale concentration gradients are an important master factor on heat distribution in the southeast Pacific. Keywords: ECCO Products Used: ECCO-V4 ; adjointURL: http://journals.ametsoc.org/doi/10.1175/JPO-D-19-0155.1 Other URLs:
Dong, Jihai; Fox-Kemper, Baylor; Zhang, Hong; Dong, Changming (2020). The Scale of Submesoscale Baroclinic Instability Globally, Journal of Physical Oceanography, 9 (50), 2649-2667, 10.1175/JPO-D-20-0043.1. Title: The Scale of Submesoscale Baroclinic Instability Globally Type: Journal article Publication: Journal of Physical Oceanography Author(s): Dong, Jihai ; Fox-Kemper, Baylor ; Zhang, Hong ; Dong, Changming Year: 2020 Formatted Citation: Dong, J., B. Fox-Kemper, H. Zhang, and C. Dong, 2020 : The Scale of Submesoscale Baroclinic Instability Globally. Journal of Physical Oceanography, 50 ( 9 ), 2649-2667, doi:10.1175/JPO-D-20-0043.1 Abstract: The spatial scale of submesoscales is an important parameter for studies of submesoscale dynamics and multiscale interactions. The horizontal spatial scales of baroclinic, geostrophic-branch mix layer instabilities ( MLI ) are investigated globally ( without the equatorial or Arctic oceans ) based on observations and simulations in the surface and bottom mix layers away from significant topography. Three high-vertical-resolution limit layer schemes driven with profiles from a MITgcm ball-shaped submesoscale-permitting model improve robustness. The fastest-growing MLI wavelength decreases toward the poles. The zonal medial surface MLI wavelength is 51-2.9 kilometer when estimated from the observations and from 32, 25, and 27 kilometer to 2.5, 1.2, and 1.1 kilometer under the K-profile parameterization ( KPP ), Mellor-Yamada ( MY ), and κ-ε schemes, respectively. The surface MLI wavelength has a solid seasonality with a median value 1.6 times smaller in summer ( 10 kilometer ) than winter ( 16 kilometer ) globally from the observations. The medial bottom MLI wavelengths estimated from simulations are 2.1, 1.4, and 0.41 km globally under the KPP, MY, and κ-ε schemes, respectively, with little seasonality. The estimated needed ocean model power system spacings to resolve winter surface desegregate level eddies are 1.9 km ( 50 % of regions resolved ) and 0.92 kilometer ( 90 % ) globally. To resolve summer eddies or MLI seasonality requires grids finer than 1.3 kilometer ( 50 % ) and 0.55 kilometer ( 90 % ). To resolve bed mix layer eddies, grids finer than 257, 178, and 51 megabyte ( 50 % ) and 107, 87, and 17 megabyte ( 90 % ) are estimated under the KPP, MY, and κ-ε schemes. Keywords: ECCO Products Used: LLC_hiresURL: https://journals.ametsoc.org/jpo/article/50/9/2649/353423/The-Scale-of-Submesoscale-Baroclinic-Instability Other URLs:
Su, Zhan; Torres, Hector; Klein, Patrice; Thompson, Andrew F.; Siegelman, Lia; Wang, Jinbo; Menemenlis, Dimitris; Hill, Christopher (2020). High-frequency Submesoscale Motions Enhance the Upward Vertical Heat Transport in the Global Ocean, Journal of Geophysical Research: Oceans, 10.1029/2020JC016544. Title: High-frequency Submesoscale Motions Enhance the Upward Vertical Heat Transport in the Global Ocean Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Su, Zhan ; Torres, Hector ; Klein, Patrice ; Thompson, Andrew F. ; Siegelman, Lia ; Wang, Jinbo ; Menemenlis, Dimitris ; Hill, Christopher Year: 2020 Formatted Citation: Su, Z., H. Torres, P. Klein, A. F. Thompson, L. Siegelman, J. Wang, D. Menemenlis, and C. Hill, 2020 : High-frequency Submesoscale Motions Enhance the Upward Vertical Heat Transport in the Global Ocean. J. Geophys. Res. Ocean., doi:10.1029/2020JC016544 Abstract: Keywords: ECCO Products Used: LLC_hiresURL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2020JC016544 Other URLs:
Judd, Emily J.; Bhattacharya, Tripti; Ivany, Linda C. (2020). A dynamical framework for interpreting ancient sea surface temperatures, Geophysical Research Letters, 10.1029/2020GL089044. Title: A dynamic framework for interpreting ancient sea open temperatures Type: Journal article Publication: Geophysical Research Letters Author(s): Judd, Emily J. ; Bhattacharya, Tripti ; Ivany, Linda C. Year: 2020 Formatted Citation: Judd, E. J., T. Bhattacharya, and L. C. Ivany, 2020 : A dynamic framework for interpreting ancient sea airfoil temperatures. Geophys. Res. Lett., doi:10.1029/2020GL089044 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2020GL089044 Other URLs:
Lin, Hongyang; Liu, Zhiyu; Hu, Jianyu; Menemenlis, Dimitris; Huang, Yongxiang (2020). Characterizing meso- to submesoscale features in the South China Sea, Progress in Oceanography (188), 102420, 10.1016/j.pocean.2020.102420. Title: Characterizing meso- to submesoscale features in the South China Sea Type: Journal article Publication: Progress in Oceanography Author(s): Lin, Hongyang ; Liu, Zhiyu ; Hu, Jianyu ; Menemenlis, Dimitris ; Huang, Yongxiang Year: 2020 Formatted Citation: Lin, H., Z. Liu, J. Hu, D. Menemenlis, and Y. Huang, 2020 : Characterizing meso- to submesoscale features in the South China Sea. progress in Oceanography, 188, 102420, doi:10.1016/j.pocean.2020.102420 Abstract: Keywords: ECCO Products Used: LLC_hiresURL: https://linkinghub.elsevier.com/retrieve/pii/S0079661120301592 Other URLs:
Hu, Shijian; Sprintall, Janet; Guan, Cong; McPhaden, Michael J.; Wang, Fan; Hu, Dunxin; Cai, Wenju (2020). Deep-reaching acceleration of global mean ocean circulation over the past two decades, Science Advances, 6 (6), eaax7727, 10.1126/sciadv.aax7727. Title: Deep-reaching acceleration of global mean ocean circulation over the past two decades Type: Journal article Publication: Science Advances Author(s): Hu, Shijian ; Sprintall, Janet ; Guan, Cong ; McPhaden, Michael J. ; Wang, Fan ; Hu, Dunxin ; Cai, Wenju Year: 2020 Formatted Citation: Hu, S., J. Sprintall, C. Guan, M. J. McPhaden, F. Wang, D. Hu, and W. Cai, 2020 : Deep-reaching acceleration of global entail ocean circulation over the by two decades. science Advances, 6 ( 6 ), eaax7727, doi:10.1126/sciadv.aax7727 Abstract: Ocean circulation redistributes Earth ‘s energy and water masses and influences global climate. Under historical greenhouse calefacient, regional ocean currents show divers tendencies, but whether there is an emerging course of the ball-shaped beggarly ocean circulation arrangement is not yet clear. here, we show a statistically significant increasing vogue in the globally integrate oceanic energizing energy since the early 1990s, indicating a significant acceleration of global mean ocean circulation. The increasing swerve in kinetic energy is peculiarly big in the ball-shaped tropical oceans, reaching depths of thousands of meters. The deep-reaching acceleration of the ocean circulation is chiefly induced by a planetal intensification of surface winds since the early 1990s. Although possibly influenced by wind changes associated with the attack of a negative Pacific decadal oscillation since the late 1990s, the recent acceleration is far larger than that associated with natural variability, suggesting that it is chiefly part of a long-run tendency. Keywords: ECCO Products Used: ECCO2URL: https://advances.sciencemag.org/lookup/doi/10.1126/sciadv.aax7727 Other URLs:
Ridge, S. M.; McKinley, G. A. (2020). Advective Controls on the North Atlantic Anthropogenic Carbon Sink, Global Biogeochemical Cycles, 7 (34), 10.1029/2019GB006457. Title: Advective Controls on the North Atlantic Anthropogenic Carbon Sink Type: Journal article Publication: Global Biogeochemical Cycles Author(s): Ridge, S. M. ; McKinley, G. A. Year: 2020 Formatted Citation: Ridge, S. M., and G. A. McKinley, 2020 : advective Controls on the North Atlantic Anthropogenic Carbon Sink. Global Biogeochemical Cycles, 34 ( 7 ), doi:10.1029/2019GB006457 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2019GB006457 Other URLs:
Joerss, Hanna; Xie, Zhiyong; Wagner, Charlotte C.; von Appen, Wilken-Jon; Sunderland, Elsie M.; Ebinghaus, Ralf (2020). Transport of Legacy Perfluoroalkyl Substances and the Replacement Compound HFPO-DA through the Atlantic Gateway to the Arctic Ocean-Is the Arctic a Sink or a Source?, Environmental Science & Technology, acs.est.0c00228, 10.1021/acs.est.0c00228. Title: Transport of Legacy Perfluoroalkyl Substances and the Replacement Compound HFPO-DA through the Atlantic Gateway to the Arctic Ocean-Is the Arctic a Sink or a informant ? Type: Journal article Publication: Environmental Science & Technology Author(s): Joerss, Hanna ; Xie, Zhiyong ; Wagner, Charlotte C. ; von Appen, Wilken-Jon ; Sunderland, Elsie M. ; Ebinghaus, Ralf Year: 2020 Formatted Citation: Joerss, H., Z. Xie, C. C. Wagner, W. von Appen, E. M. Sunderland, and R. Ebinghaus, 2020 : enchant of Legacy Perfluoroalkyl Substances and the Replacement Compound HFPO-DA through the Atlantic Gateway to the Arctic Ocean-Is the Arctic a Sink or a reservoir ? Environmental Science & Technology, acs.est.0c00228, doi:10.1021/acs.est.0c00228 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://pubs.acs.org/doi/10.1021/acs.est.0c00228 Other URLs:
Pak, Gyundo; Park, Jae-Hyoung; Lee, Seok-Joon; Park, Young-Gyu; Chang, You-Soon (2020). Comparisons of Net Heat Flux Data Sets Over the Western North Pacific, Ocean Science Journal, 10.1007/s12601-020-0036-4. Title: Comparisons of Net Heat Flux Data Sets Over the westerly North Pacific Type: Journal article Publication: Ocean Science Journal Author(s): Pak, Gyundo ; Park, Jae-Hyoung ; Lee, Seok-Joon ; Park, Young-Gyu ; Chang, You-Soon Year: 2020 Formatted Citation: Pak, G., J. Park, S. Lee, Y. Park, and Y. Chang, 2020 : Comparisons of Net Heat Flux Data Sets Over the western North Pacific. Ocean Science Journal, doi:10.1007/s12601-020-0036-4 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: http://link.springer.com/10.1007/s12601-020-0036-4 Other URLs:
Liu, Hao; Qu, Tangdong (2020). Production and Fate of the South Atlantic Subtropical Underwater, Journal of Geophysical Research: Oceans, 10.1029/2020JC016309. Title: Production and Fate of the South Atlantic Subtropical Underwater Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Liu, Hao ; Qu, Tangdong Year: 2020 Formatted Citation: Liu, H., and T. Qu, 2020 : product and Fate of the South Atlantic Subtropical Underwater. J. Geophys. Res. Ocean., doi:10.1029/2020JC016309 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/10.1029/2020JC016309 Other URLs:
Ludwigsen, Carsten A.; Andersen, Ole B. (2020). Contributions to Arctic sea level from 2003 to 2015, Advances in Space Research, 10.1016/j.asr.2019.12.027. Title: Contributions to Arctic sea grade from 2003 to 2015 Type: Journal article Publication: Advances in Space Research Author(s): Ludwigsen, Carsten A. ; Andersen, Ole B. Year: 2020 Formatted Citation: Ludwigsen, C. A., and O. B. Andersen, 2020 : Contributions to Arctic sea degree from 2003 to 2015. Advances in Space Research, doi:10.1016/j.asr.2019.12.027 Abstract: Keywords: ECCO Products Used: ECCO-KFS ; ECCO-V4URL: https://linkinghub.elsevier.com/retrieve/pii/S0273117719309275 Other URLs:
Koldunov, A. V.; Belonenko, T. V. (2020). Hydrodynamic Modeling of Vertical Velocities in the Lofoten Vortex, Izvestiya, Atmospheric and Oceanic Physics, 5 (56), 502-511, 10.1134/S0001433820040040. Title: Hydrodynamic Modeling of Vertical Velocities in the Lofoten Vortex Type: Journal article Publication: Izvestiya, Atmospheric and Oceanic Physics Author(s): Koldunov, A. V. ; Belonenko, T. V. Year: 2020 Formatted Citation: Koldunov, A. V., and T. V. Belonenko, 2020 : Hydrodynamic Modeling of Vertical Velocities in the Lofoten Vortex. Izvestiya, Atmospheric and Oceanic Physics, 56 ( 5 ), 502-511, doi:10.1134/S0001433820040040 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://link.springer.com/10.1134/S0001433820040040 Other URLs:
Pan, Yulin; Arbic, Brian K.; Nelson, Arin D.; Menemenlis, Dimitris; Peltier, W. R.; Xu, Wentao; Li, Ye (2020). Numerical investigation of mechanisms underlying oceanic internal gravity wave power-law spectra, Journal of Physical Oceanography, 1-53, 10.1175/JPO-D-20-0039.1. Title: numeric probe of mechanisms underlying oceanic internal graveness wave power-law spectrum Type: Journal article Publication: Journal of Physical Oceanography Author(s): Pan, Yulin ; Arbic, Brian K. ; Nelson, Arin D. ; Menemenlis, Dimitris ; Peltier, W. R. ; Xu, Wentao ; Li, Ye Year: 2020 Formatted Citation: Pan, Y., B. K. Arbic, A. D. Nelson, D. Menemenlis, W. R. Peltier, W. Xu, and Y. Li, 2020 : numerical probe of mechanisms underlying oceanic home gravity wave power-law spectrum. Journal of Physical Oceanography, 1-53, doi:10.1175/JPO-D-20-0039.1 Abstract: We consider the power-law spectrum of internal gravity waves in a rotate and stratify ocean. field measurements have shown considerable variability of spectral slopes compared to the high-wavenumber high-frequency fortune of the Garrett-Munk ( GM ) spectrum. theoretical explanations have been developed through curl turbulence hypothesis ( WTT ), where unlike power-law solutions of the kinetic equality can be found depending on the mechanisms underlying the nonlinear interactions. mathematically, these are reflected by the overlap properties of the alleged collision integral ( CL ) at low and high frequency limits. In this study, we study the mechanisms in the formation of the power-law spectrum of internal gravity waves, utilizing numeric data from the high-resolution model of home waves ( HRMIW ) in a region northwest of Hawaii. The model captures the power-law spectrum in broad ranges of space and time scales, with scalings ω−2.05±0.2 in frequency and m−2.58±0.4 in erect wavenumber. The latter intelligibly deviates from the GM76 spectrum but is closer to a family of induced-diffusion-dominated solutions predicted by WTT. Our psychoanalysis of nonlinear interactions is performed immediately on these exemplar outputs, which is basically different from previous work assuming a GM76 spectrum. By applying a bi-coherence psychoanalysis and evaluations of modal auxiliary verb energy transfer, we show that the CL is dominated by non-local interactions between modes in the power-law range and low-frequency inertial motions. We further identify induce dispersion and the near-resonances at its apparitional vicinity as dominating the formation of power-law spectrum. Keywords: ECCO Products Used: LLC_hiresURL: https://journals.ametsoc.org/jpo/article/353441/Numerical-investigation-of-mechanisms-underlying Other URLs:
Mohammadi-Aragh, Mahdi; Losch, Martin; Goessling, Helge F. (2020). Comparing Arctic Sea Ice Model Simulations to Satellite Observations by Multiscale Directional Analysis of Linear Kinematic Features, Monthly Weather Review, 8 (148), 3287-3303, 10.1175/MWR-D-19-0359.1. Title: Comparing Arctic Sea Ice Model Simulations to Satellite Observations by Multiscale Directional Analysis of Linear Kinematic Features Type: Journal article Publication: Monthly Weather Review Author(s): Mohammadi-Aragh, Mahdi ; Losch, Martin ; Goessling, Helge F. Year: 2020 Formatted Citation: Mohammadi-Aragh, M., M. Losch, and H. F. Goessling, 2020 : Comparing Arctic Sea Ice Model Simulations to Satellite Observations by Multiscale Directional Analysis of Linear Kinematic Features. Monthly Weather Review, 148 ( 8 ), 3287-3303, doi:10.1175/MWR-D-19-0359.1 Abstract: Sea ice models have become essential components of weather, climate, and ocean models. A realistic theatrical performance of sea ice affects the dependability of process representation, environmental calculate, and climate projections. realistic simulations of sea frost kinematics require the consideration of both large-scale and finescale geomorphologic structures such as linear kinematic features ( LKF ). We propose a multiscale directional analysis ( MDA ) that diagnoses the spatial characteristics of LKFs. The MDA is different from previous analyses in that it ( one ) does not detect LKFs as objects, ( two ) takes into account the width of LKFs, and ( three ) estimates scale-dependent orientation and intersection angles. The MDA is applied to pairs of contortion fields derived from satellite remote control sensing data and from a numerical model simulation with a horizontal grid spacing of ~4.5 kilometer. The orientation and intersection angles of LKFs agree with the observations and confirm the ocular impression that the intersection angles tend to be smaller in the satellite data compared to the model data. The MDA distributions can be used to compare satellite data and numerical model fields using conventional metrics such as a euclidian distance, the Bhattacharyya coefficient, or the Earth proposer ‘s distance. The latter is found to be the most meaningful metric unit to compare distributions of LKF orientations and intersection angles. The MDA proposed here provides a joyride to diagnose if modified sea ice rheologies lead to more naturalistic simulations of LKFs. Keywords: ECCO Products Used: ECCO2URL: https://journals.ametsoc.org/mwr/article/148/8/3287/348279/Comparing-Arctic-Sea-Ice-Model-Simulations-to Other URLs:
Fournier, Séverine; Lee, Tong; Wang, Xiaochun; Armitage, Thomas W. K.; Wang, Ou; Fukumori, Ichiro; Kwok, Ron (2020). Sea surface salinity as a proxy for Arctic Ocean freshwater changes, Journal of Geophysical Research: Oceans, 10.1029/2020JC016110. Title: Sea airfoil brininess as a proxy for Arctic Ocean fresh water changes Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Fournier, Séverine ; Lee, Tong ; Wang, Xiaochun ; Armitage, Thomas W. K. ; Wang, Ou ; Fukumori, Ichiro ; Kwok, Ron Year: 2020 Formatted Citation: Fournier, S., T. Lee, X. Wang, T. W. K. Armitage, O. Wang, I. Fukumori, and R. Kwok, 2020 : Sea surface salt as a proxy for Arctic Ocean fresh water changes. J. Geophys. Res. Ocean., doi:10.1029/2020JC016110 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2020JC016110 Other URLs:
Gao, Guandong; Marin, Maxime; Feng, Ming; Yin, Baoshu; Yang, Dezhou; Feng, Xingru; Ding, Yang; Song, Dehai (2020). Drivers of marine heatwaves in the East China Sea and the South Yellow Sea in three consecutive summers during 2016-2018, Journal of Geophysical Research: Oceans, 10.1029/2020JC016518. Title: Drivers of marine heatwaves in the East China Sea and the South Yellow Sea in three consecutive summers during 2016-2018 Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Gao, Guandong ; Marin, Maxime ; Feng, Ming ; Yin, Baoshu ; Yang, Dezhou ; Feng, Xingru ; Ding, Yang ; Song, Dehai Year: 2020 Formatted Citation: Gao, G., M. Marin, M. Feng, B. Yin, D. Yang, X. Feng, Y. Ding, and D. Song, 2020 : Drivers of marine heatwaves in the East China Sea and the South Yellow Sea in three straight summers during 2016-2018. J. Geophys. Res. Ocean., doi:10.1029/2020JC016518 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2020JC016518 Other URLs:
Lang, Yandong; Stanley, Geoffrey J.; McDougall, Trevor J.; Barker, Paul M. (2020). A pressure-invariant Neutral Density variable for the World’s Oceans, Journal of Physical Oceanography, 1-58, 10.1175/JPO-D-19-0321.1. Title: A pressure-invariant Neutral Density varying for the World ’ south Oceans Type: Journal article Publication: Journal of Physical Oceanography Author(s): Lang, Yandong ; Stanley, Geoffrey J. ; McDougall, Trevor J. ; Barker, Paul M. Year: 2020 Formatted Citation: Lang, Y., G. J. Stanley, T. J. McDougall, and P. M. Barker, 2020 : A pressure-invariant Neutral Density variable star for the World ‘s Oceans. Journal of Physical Oceanography, 1-58, doi:10.1175/JPO-D-19-0321.1 Abstract: We present a new method to calculate the neutral concentration of an arbitrary water tract. Using this method acting the value of inert density depends lone on the package ‘s salt, temperature, latitude, and longitude, and is independent of the blackmail ( or depth ) of the package, and is consequently mugwump of heave in observations or high-resolution models. In this method we move the parcel adiabatically and isentropically like a Submesoscale Coherent Vortex ( SCV ), to its level of neutral airiness on four nearby body of water column of a climatological atlas. The parcel ‘s impersonal density γSCV is interpolated from pre-labelled neutral density values at these four citation locations in the climatological atlas. This method acting is similar to the neutral density variable, γn, of Jackett and McDougall : their discretization of the neutral relationship equated the potential density of two parcels referenced to their average blackmail, whereas our discretization equates the parcels ‘ electric potential concentration referenced to the pressure of the climatological parcel. We calculate the numeric differences between γSCV and γn and we find similar variations of γn and γSCVon the ω-surfaces of Klocker, McDougall and Jackett. We besides find that isosurfaces of γn and γSCV deviate from the neutral tangent plane by exchangeable amounts. We compare the substantial derived function of γSCV with that of γn, finding their sum material derivatives are of a like magnitude. Keywords: ECCO Products Used: ECCO2URL: https://journals.ametsoc.org/jpo/article/354963/A-pressureinvariant-Neutral-Density-variable-for Other URLs:
Yang, Haijun; Shen, Xingchen; Yao, Jie; Wen, Qin (2020). Portraying the Impact of the Tibetan Plateau on Global Climate, Journal of Climate, 9 (33), 3565-3583, 10.1175/JCLI-D-18-0734.1. Title: Portraying the shock of the Tibetan Plateau on Global Climate Type: Journal article Publication: Journal of Climate Author(s): Yang, Haijun ; Shen, Xingchen ; Yao, Jie ; Wen, Qin Year: 2020 Formatted Citation: Yang, H., X. Shen, J. Yao, and Q. Wen, 2020 : Portraying the impingement of the Tibetan Plateau on Global Climate. J. Clim., 33 ( 9 ), 3565-3583, doi:10.1175/JCLI-D-18-0734.1 Abstract: As the most across-the-board highland in the global, the Tibetan Plateau ( TP ) plays an important function in shaping the ball-shaped climate. Quantifying the effect of the TP on global climate is the beginning step for a entire understand of the TP ‘s stand on planet ground. Through coupled exemplary sensitivity experiments, we draw a panorama of the TP ‘s global impact in this composition. Our model results show that the absence of the TP would result in a 4°C cold and 10 % desiccant climate in the Northern Hemisphere ( NH ). The TP has a strike distant consequence on the North Atlantic. Removing the TP would enhance the westerlies in the mid- to high latitudes of the NH and weaken the easterlies over the tropical Pacific. More moisture would be relocated from the tropical Pacific to the North Atlantic, shutting down the Atlantic thermohaline circulation, which would finally result in more than 15°C cold and 20 % drier climate over the North Atlantic. Our mannequin results suggest that the presence of the TP may have contributed greatly to the hospitable modern climate in the NH, by promoting the establishment of the thermohaline circulation in the Atlantic, and therefore enhancing the north ocean heat transport and atmosphere moisture transportation across the equator. Keywords: ECCO Products Used: ECCO-V4URL: http://journals.ametsoc.org/doi/10.1175/JCLI-D-18-0734.1 Other URLs:
Newsom, Emily; Zanna, Laure; Khatiwala, Samar; Gregory, Jonathan M. (2020). The Influence of Warming Patterns on Passive Ocean Heat Uptake, Geophysical Research Letters, 10.1029/2020GL088429. Title: The Influence of Warming Patterns on Passive Ocean Heat Uptake Type: Journal article Publication: Geophysical Research Letters Author(s): Newsom, Emily ; Zanna, Laure ; Khatiwala, Samar ; Gregory, Jonathan M. Year: 2020 Formatted Citation: Newsom, E., L. Zanna, S. Khatiwala, and J. M. Gregory, 2020 : The Influence of Warming Patterns on Passive Ocean Heat Uptake. Geophys. Res. Lett., doi:10.1029/2020GL088429 Abstract: Keywords: ECCO Products Used: ECCO-V3URL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2020GL088429 Other URLs:
Sánchez-Leal, R.F.; Bellanco, M.J.; Naranjo, C.; García-Lafuente, J.; González-Pola, C. (2020). On the seasonality of waters below the seasonal thermocline in the Gulf of Cádiz, Continental Shelf Research, 104190, 10.1016/j.csr.2020.104190. Title: On the seasonality of waters below the seasonal thermocline in the Gulf of Cádiz Type: Journal article Publication: Continental Shelf Research Author(s): Sánchez-Leal, R.F. ; Bellanco, M.J. ; Naranjo, C. ; García-Lafuente, J. ; González-Pola, C. Year: 2020 Formatted Citation: Sánchez-Leal, R., M. Bellanco, C. Naranjo, J. García-Lafuente, and C. González-Pola, 2020 : On the seasonality of waters below the seasonal worker thermocline in the Gulf of Cádiz. Continental Shelf Research, 104190, doi:10.1016/j.csr.2020.104190 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://linkinghub.elsevier.com/retrieve/pii/S0278434320301461 Other URLs:
Strobach, Ehud; Molod, Andrea; Trayanov, Atanas; Forget, Gael; Campin, Jean-Michel; Hill, Chris; Menemenlis, Dimitris (2020). Three-to-Six-Day Air-Sea Oscillation in Models and Observations, Geophysical Research Letters, e2019GL085837, 10.1029/2019GL085837. Title: Three-to-Six-Day Air-Sea Oscillation in Models and Observations Type: Journal article Publication: Geophysical Research Letters Author(s): Strobach, Ehud ; Molod, Andrea ; Trayanov, Atanas ; Forget, Gael ; Campin, Jean-Michel ; Hill, Chris ; Menemenlis, Dimitris Year: 2020 Formatted Citation: Strobach, E., A. Molod, A. Trayanov, G. Forget, J. Campin, C. Hill, and D. Menemenlis, 2020 : Three-to-Six-Day Air-Sea Oscillation in Models and Observations. Geophys. Res. Lett., e2019GL085837, doi:10.1029/2019GL085837 Abstract: Keywords: ECCO Products Used: LLC_hiresURL: http://doi.wiley.com/10.1029/2019GL085837 Other URLs:
Rousselet, Louise; Cessi, Paola; Forget, Gael (2020). Routes of the upper branch of the Atlantic Meridional Overturning Circulation according to an ocean state estimate, Geophysical Research Letters, 10.1029/2020GL089137. Title: Routes of the upper branch of the Atlantic Meridional Overturning Circulation according to an ocean submit appraisal Type: Journal article Publication: Geophysical Research Letters Author(s): Rousselet, Louise ; Cessi, Paola ; Forget, Gael Year: 2020 Formatted Citation: Rousselet, L., P. Cessi, and G. Forget, 2020 : Routes of the upper ramify of the Atlantic Meridional Overturning Circulation according to an ocean submit calculate. Geophys. Res. Lett., doi:10.1029/2020GL089137 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2020GL089137 Other URLs:
Portela, Esther; Kolodziejczyk, Nicolas; Maes, Christophe; Thierry, Virginie (2020). Interior Water-Mass Variability in the Southern Hemisphere Oceans during the Last Decade, Journal of Physical Oceanography, 2 (50), 361-381, 10.1175/JPO-D-19-0128.1. Title: Interior Water-Mass Variability in the Southern Hemisphere Oceans during the death ten Type: Journal article Publication: Journal of Physical Oceanography Author(s): Portela, Esther ; Kolodziejczyk, Nicolas ; Maes, Christophe ; Thierry, Virginie Year: 2020 Formatted Citation: Portela, E., N. Kolodziejczyk, C. Maes, and V. Thierry, 2020 : interior Water-Mass Variability in the Southern Hemisphere Oceans during the last Decade. Journal of Physical Oceanography, 50 ( 2 ), 361-381, doi:10.1175/JPO-D-19-0128.1 Abstract: Using an Argo dataset and the ECCOv4 reanalysis, a volume budget was performed to address the main mechanisms driving the volume change of the inside water masses in the Southern Hemisphere oceans between 2006 and 2015. The subduction rates and the isopycnal and diapycnal water-mass transformation were estimated in a density-spiciness ( σ- τ ) model. Spiciness, defined as thermohaline variations along isopycnals, was added to the likely density coordinates to discriminate between body of water masses spreading on isopycnal layers. The main positive book trends were found to be associated with the Subantarctic Mode Waters ( SAMW ) in the South Pacific and South amerind Ocean basins, revealing a lighten of the upper waters in the Southern Hemisphere. The SAMW exhibits a two-layer concentration structure in which subduction and diapycnal transformation from the lower to the upper berth layers accounted for most of the upper-layer volume gain and lower-layer volume passing, respectively. The south-polar Intermediate Waters, defined here between the 27.2 and 27.5 kg megabyte −3 isopycnals, showed the strongest negative volume trends. This book loss can be explained by their negative isopyncal transformation southbound of the Antarctic Circumpolar Current into the fresh and cold Antarctic Winter Waters ( AAWW ) and north into hot tropical/subtropical Intermediate Waters. The AAWW is destroyed by obduction back into the desegregate layer sol that its net volume change remains about zero. The proposed mechanisms to explain the transformation within the Intermediate Waters are discussed in the context of Southern Ocean dynamics. The σ- τ decomposition provided modern penetration on the spatial and temporal water-mass unevenness and driving mechanisms over the survive decade. Keywords: ECCO Products Used: ECCO-V4URL: http://journals.ametsoc.org/doi/10.1175/JPO-D-19-0128.1 Other URLs:
Li; Huang; Chen; Dam; Fok; Zhao; Wu; Wang (2020). Quantitative Evaluation of Environmental Loading Induced Displacement Products for Correcting GNSS Time Series in CMONOC, Remote Sensing, 4 (12), 594, 10.3390/rs12040594. Title: quantitative evaluation of Environmental Loading Induced Displacement Products for Correcting GNSS Time Series in CMONOC Type: Journal article Publication: Remote Sensing Author(s): Li ; Huang ; Chen ; Dam ; Fok ; Zhao ; Wu ; Wang Year: 2020 Formatted Citation: Li, Huang, Chen, Dam, Fok, Zhao, Wu, and Wang, 2020 : quantitative evaluation of Environmental Loading Induced Displacement Products for Correcting GNSS Time Series in CMONOC. Remote Sensing, 12 ( 4 ), 594, doi:10.3390/rs12040594 Abstract: Mass redistribution within the Earth arrangement deforms the surface elastically. Loading theory allows us to predict loading induce displacement anywhere on the Earth ‘s come on using environmental load models, for example, Global Land Data Assimilation System. In accession, different publicly available load products are available. however, there are differences among those products and the differences among the combinations of loading models can not be ignored when precisions of better than 1 cm are required. many scholars have applied these loading corrections to Global Navigation Satellite System ( GNSS ) meter series from mainland China without considering or discussing the differences between the available models. Evaluating the effects of different load products over this region is of overriding importance for accurately removing the load signal. In this sketch, we investigate the performance of these different publicly available loading products on the disperse of GNSS time series from the Crustal Movement Observation Network of China. We concentrate on five different continental body of water storage load models, six unlike non-tidal atmospheric load models, and five unlike non-tidal oceanic load models. We besides investigate all the unlike combinations of loading products. The results show that the dispute in RMS reduction can reach 20 % in the erect component depending on the loading correction applied. We then discuss the performance of different loading combinations and their effects on the noise characteristics of GNSS height clock series and horizontal velocities. The results show that the load products from NASA may be the best choice for corrections in mainland China. This conclusion could serve as an authoritative mention for loading products users in this region. Keywords: ECCO Products Used: ECCO-KFS ; ECCO2URL: https://www.mdpi.com/2072-4292/12/4/594 Other URLs:
Youngs, Madeleine K.; Ferrari, Raffaele; Flierl, Glenn R. (2020). Basin-Width Dependence of Northern Deep Convection, Geophysical Research Letters, 15 (47), 10.1029/2020GL089135. Title: Basin-Width Dependence of Northern Deep convection Type: Journal article Publication: Geophysical Research Letters Author(s): Youngs, Madeleine K. ; Ferrari, Raffaele ; Flierl, Glenn R. Year: 2020 Formatted Citation: Youngs, M. K., R. Ferrari, and G. R. Flierl, 2020 : Basin-Width dependence of Northern Deep Convection. Geophys. Res. Lett., 47 ( 15 ), doi:10.1029/2020GL089135 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2020GL089135 Other URLs:
Royston, Sam; Dutt Vishwakarma, Bramha; Westaway, Richard; Rougier, Jonathan; Sha, Zhe; Bamber, Jonathan (2020). Can We Resolve the Basin-Scale Sea Level Trend Budget From GRACE Ocean Mass?, Journal of Geophysical Research: Oceans, 1 (125), 10.1029/2019JC015535. Title: Can We Resolve the Basin-Scale Sea Level Trend Budget From GRACE Ocean Mass ? Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Royston, Sam ; Dutt Vishwakarma, Bramha ; Westaway, Richard ; Rougier, Jonathan ; Sha, Zhe ; Bamber, Jonathan Year: 2020 Formatted Citation: Royston, S., B. Dutt Vishwakarma, R. Westaway, J. Rougier, Z. Sha, and J. Bamber, 2020 : Can We Resolve the Basin-Scale Sea Level Trend Budget From GRACE Ocean Mass ? J. Geophys. Res. Ocean., 125 ( 1 ), doi:10.1029/2019JC015535 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2019JC015535 Other URLs:
Luecke, Conrad A.; Arbic, Brian K.; Richman, James G.; Shriver, Jay F.; Alford, Matthew H.; Ansong, Joseph K.; Bassette, Steven L.; Buijsman, Maarten C.; Menemenlis, Dimitris; Scott, Robert B.; Timko, Patrick G.; Voet, Gunnar; Wallcraft, Alan J.; Zamudio, Luis (2020). Statistical Comparisons of Temperature Variance and Kinetic Energy in Global Ocean Models and Observations: Results from Mesoscale to Internal Wave Frequencies, Journal of Geophysical Research: Oceans, 10.1029/2019JC015306. Title: Statistical Comparisons of Temperature Variance and Kinetic Energy in Global Ocean Models and Observations : Results from Mesoscale to Internal Wave Frequencies Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Luecke, Conrad A. ; Arbic, Brian K. ; Richman, James G. ; Shriver, Jay F. ; Alford, Matthew H. ; Ansong, Joseph K. ; Bassette, Steven L. ; Buijsman, Maarten C. ; Menemenlis, Dimitris ; Scott, Robert B. ; Timko, Patrick G. ; Voet, Gunnar ; Wallcraft, Alan J. ; Zamudio, Luis Year: 2020 Formatted Citation: Luecke, C. A. and Coauthors, 2020 : statistical Comparisons of Temperature Variance and Kinetic Energy in Global Ocean Models and Observations : Results from Mesoscale to Internal Wave Frequencies. J. Geophys. Res. Ocean., doi:10.1029/2019JC015306 Abstract: Keywords: ECCO Products Used: LLC_hiresURL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2019JC015306 Other URLs:
Liang, Yu-Chiao; Lo, Min-Hui; Lan, Chia-Wei; Seo, Hyodae; Ummenhofer, Caroline C.; Yeager, Stephen; Wu, Ren-Jie; Steffen, John D. (2020). Amplified seasonal cycle in hydroclimate over the Amazon river basin and its plume region, Nature Communications, 1 (11), 4390, 10.1038/s41467-020-18187-0. Title: Amplified seasonal worker cycle in hydroclimate over the Amazon river river basin and its preen region Type: Journal article Publication: Nature Communications Author(s): Liang, Yu-Chiao ; Lo, Min-Hui ; Lan, Chia-Wei ; Seo, Hyodae ; Ummenhofer, Caroline C. ; Yeager, Stephen ; Wu, Ren-Jie ; Steffen, John D. Year: 2020 Formatted Citation: Liang, Y., M. Lo, C. Lan, H. Seo, C. C. Ummenhofer, S. Yeager, R. Wu, and J. D. Steffen, 2020 : Amplified seasonal cycle in hydroclimate over the Amazon river washbasin and its overcharge region. nature Communications, 11 ( 1 ), 4390, doi:10.1038/s41467-020-18187-0 Abstract: Keywords: ECCO Products Used: ECCO-V4 ; GECCO2URL: http://www.nature.com/articles/s41467-020-18187-0 Other URLs:
Qiu, Bo; Chen, Shuiming; Klein, Patrice; Torres, Hector; Wang, Jinbo; Fu, Lee-Lueng; Menemenlis, Dimitris (2020). Reconstructing Upper-Ocean Vertical Velocity Field from Sea Surface Height in the Presence of Unbalanced Motion, Journal of Physical Oceanography, 1 (50), 55-79, 10.1175/JPO-D-19-0172.1. Title: Reconstructing Upper-Ocean Vertical Velocity Field from Sea Surface Height in the Presence of Unbalanced Motion Type: Journal article Publication: Journal of Physical Oceanography Author(s): Qiu, Bo ; Chen, Shuiming ; Klein, Patrice ; Torres, Hector ; Wang, Jinbo ; Fu, Lee-Lueng ; Menemenlis, Dimitris Year: 2020 Formatted Citation: Qiu, B., S. Chen, P. Klein, H. Torres, J. Wang, L. Fu, and D. Menemenlis, 2020 : Reconstructing Upper-Ocean Vertical Velocity Field from Sea Surface Height in the Presence of Unbalanced Motion. Journal of Physical Oceanography, 50 ( 1 ), 55-79, doi:10.1175/JPO-D-19-0172.1 Abstract: Reconstructability of upper-ocean erect speed watt and vorticity ζ fields from high-resolution ocean surface height ( SSH ) datum is explored using the global 1/48° horizontal-resolution MITgcm output in the context of the forthcoming Surface Water and Ocean Topography ( SWOT ) mission. By decomposing watt with an omega equation of the primitive equation system and by taking into explanation the measurement design of the SWOT deputation, this study seeks to reconstruct the subinertial, balanced tungsten and ζ signals. By adopting the effective come on quasigeostrophic ( eSQG ) framework and applying to the Kuroshio Extension region of the North Pacific, we find that the aim and reconstructed fields have a spatial correlation of ~0.7 below the mix layer for w and 0.7-0.9 throughout the 1000-m amphetamine ocean for ζ in the error-free scenario. By taking the SWOT sample distribution and measurement errors into account, the spatial correlation is found to decrease to 0.4-0.6 below the mix layer for watt and 0.6-0.7 for ζ, respectively. For both tungsten and ζ reconstruction, the abasement due to the SWOT errors is more significant in the coat layer and for smaller-scale signals. The impingement of errors lessens with the increasing depth and lengthening horizontal scales. Keywords: ECCO Products Used: LLC_hiresURL: http://journals.ametsoc.org/doi/10.1175/JPO-D-19-0172.1 Other URLs:
Sonnewald, Maike; Dutkiewicz, Stephanie; Hill, Christopher; Forget, Gael (2020). Elucidating ecological complexity: Unsupervised learning determines global marine eco-provinces, Science Advances, 22 (6), eaay4740, 10.1126/sciadv.aay4740. Title: Elucidating ecological complexity : Unsupervised learning determines ball-shaped nautical eco-provinces Type: Journal article Publication: Science Advances Author(s): Sonnewald, Maike ; Dutkiewicz, Stephanie ; Hill, Christopher ; Forget, Gael Year: 2020 Formatted Citation: Sonnewald, M., S. Dutkiewicz, C. Hill, and G. Forget, 2020 : Elucidating ecological complexity : Unsupervised learning determines global marine eco-provinces. science Advances, 6 ( 22 ), eaay4740, doi:10.1126/sciadv.aay4740 Abstract: An unsupervised memorize method is presented for determining ball-shaped marine ecological provinces ( eco-provinces ) from plankton residential district social organization and nutrient flow data. The systematic aggregate eco-province ( SAGE ) method acting identifies eco-provinces within a highly nonlinear ecosystem exemplary. To accommodate the non-Gaussian covariance of the data, SAGE uses t-stochastic neighbor embedding ( t-SNE ) to reduce dimensionality. Over a hundred eco-provinces are identified with the density-based spatial bunch of applications with make noise ( DBSCAN ) algorithm. Using a connectivity graph with ecological dissimilarity as the distance metric, robust aggregated eco-provinces ( AEPs ) are objectively defined by nesting the eco-provinces. Using the AEPs, the manipulate of food supply rates on community structure is explored. Eco-provinces and AEPs are alone and aid model rendition. They could facilitate model intercomparison and potentially improve sympathy and monitor of marine ecosystems. Keywords: ECCO Products Used: ECCO-V4URL: https://advances.sciencemag.org/lookup/doi/10.1126/sciadv.aay4740 Other URLs:
Siegelman, Lia (2020). Energetic Submesoscale Dynamics in the Ocean Interior, Journal of Physical Oceanography, 3 (50), 727-749, 10.1175/JPO-D-19-0253.1. Title: Energetic Submesoscale Dynamics in the Ocean Interior Type: Journal article Publication: Journal of Physical Oceanography Author(s): Siegelman, Lia Year: 2020 Formatted Citation: Siegelman, L., 2020 : energetic Submesoscale Dynamics in the Ocean Interior. Journal of Physical Oceanography, 50 ( 3 ), 727-749, doi:10.1175/JPO-D-19-0253.1 Abstract: Submesoscale ocean processes, characterized by order-1 Rossby and Richardson numbers, are presently thought to be chiefly confined to the ocean coat interracial layer, whereas the ocean inside is normally assumed to be in quasigeostrophic equilibrium. here, a realistic numerical model in the Antarctic Circumpolar Current, with a 1/48° horizontal resoluteness and tidal impel, is used to demonstrate that the ocean home departs from the quasigeostrophic government down to depths of 900 molarity, that is, well below the assorted layer. Results highlight that, contrary to the classical substitution class, the ocean interior is strongly ageostrophic, with a marked cyclone-anticyclone asymmetry and a dominance of frontogenesis over frontolysis. numerous vortices and filaments, from the surface down to 900 thousand, are characterized by large Rossby and low Richardson numbers, potent lateral pass gradients of buoyancy, and vigorous ageostrophic frontogenesis. These trench submesoscales fronts are only decrepit affected by inner gravity waves and drive intense up vertical hotness fluxes, consistent with recent observations in the Antarctic Circumpolar Current and the Gulf Stream. As such, deep submesoscale fronts are an efficient nerve pathway for the tape drive of heat from the ocean department of the interior to the airfoil, suggesting the bearing of an escalate oceanic restratification at astuteness. Keywords: ECCO Products Used: LLC_hiresURL: http://journals.ametsoc.org/doi/10.1175/JPO-D-19-0253.1 Other URLs:
Mauzole, Y. L.; Torres, H. S.; Fu, L.-L. (2020). Patterns and Dynamics of SST Fronts in the California Current System, Journal of Geophysical Research: Oceans, 2 (125), 10.1029/2019JC015499. Title: Patterns and Dynamics of SST Fronts in the California Current system Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Mauzole, Y. L. ; Torres, H. S. ; Fu, L.-L. Year: 2020 Formatted Citation: Mauzole, Y. L., H. S. Torres, and L. Fu, 2020 : Patterns and Dynamics of SST Fronts in the California Current System. J. Geophys. Res. Ocean., 125 ( 2 ), doi:10.1029/2019JC015499 Abstract: Keywords: ECCO Products Used: LLC_hiresURL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2019JC015499 Other URLs:
Asbjørnsen, Helene; Årthun, Marius; Skagseth, Øystein; Eldevik, Tor (2020). Mechanisms underlying recent Arctic Atlantification, Geophysical Research Letters, 10.1029/2020GL088036. Title: Mechanisms underlying recent Arctic Atlantification Type: Journal article Publication: Geophysical Research Letters Author(s): Asbjørnsen, Helene ; Årthun, Marius ; Skagseth, Øystein ; Eldevik, Tor Year: 2020 Formatted Citation: Asbjørnsen, H., M. Årthun, Ø. Skagseth, and T. Eldevik, 2020 : Mechanisms underlying recent Arctic Atlantification. Geophys. Res. Lett., doi:10.1029/2020GL088036 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2020GL088036 Other URLs:
Cessi, Paola (2020). Control of Bering Strait Transport by the Meridional Overturning Circulation, Journal of Physical Oceanography, 7 (50), 1853-1870, 10.1175/JPO-D-20-0026.1. Title: Control of Bering Strait Transport by the Meridional Overturning Circulation Type: Journal article Publication: Journal of Physical Oceanography Author(s): Cessi, Paola Year: 2020 Formatted Citation: Cessi, P., 2020 : restraint of Bering Strait Transport by the Meridional Overturning Circulation. Journal of Physical Oceanography, 50 ( 7 ), 1853-1870, doi:10.1175/JPO-D-20-0026.1 Abstract: It is well established that the base tape drive through Bering Strait is balanced by a ocean degree difference between the North Pacific and the Arctic Ocean, but no mechanism has been proposed to explain this sea tied deviation. It is argued that the sea charge difference across Bering Strait, which geostrophically balances the north throughflow, is associated with the sea flat deviation between the North Pacific and the North Atlantic/Arctic. In turn, the latter difference is caused by deeper middepth isopycnals in the Indo-Pacific than in the Atlantic, particularly in the northerly high latitudes because there is deep water formation in the Atlantic, but not in the Pacific. Because the depth of the middepth isopycnals is associated with the dynamics of the upper outgrowth of the meridional overrule circulation ( MOC ), a model is formulated that quantitatively relates the ocean degree difference between the North Pacific and the Arctic/North Atlantic with the wind instrument stress in the Antarctic Circumpolar region, since this forcing powers the MOC, and with the outcropping isopycnals shared between the Northern Hemisphere and the Antarctic circumpolar region, since this controls the placement of deep water constitution. This implies that if the sink associated with the MOC were to occur in the North Pacific, rather than the North Atlantic, then the Bering Strait flow would reverse. These predictions, formalized in a theoretical box model, are confirmed by a series of numerical experiments in a simplified geometry of the World Ocean, forced by steady airfoil wind stress, temperature, and fresh water liquefy. Keywords: ECCO Products Used: ECCO-V4URL: https://journals.ametsoc.org/jpo/article/50/7/1853/347121/Control-of-Bering-Strait-Transport-by-the Other URLs:
Tesdal, Jan-Erik; Haine, Thomas W. N. (2020). Dominant terms in the freshwater and heat budgets of the subpolar North Atlantic Ocean and Nordic Seas from 1992 to 2015, Journal of Geophysical Research: Oceans, 10.1029/2020JC016435. Title: Dominant terms in the fresh water and heat budgets of the subpolar North Atlantic Ocean and Nordic Seas from 1992 to 2015 Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Tesdal, Jan-Erik ; Haine, Thomas W. N. Year: 2020 Formatted Citation: Tesdal, J., and T. W. N. Haine, 2020 : prevailing terms in the fresh water and heat budgets of the subpolar North Atlantic Ocean and Nordic Seas from 1992 to 2015. J. Geophys. Res. Ocean., doi:10.1029/2020JC016435 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/10.1029/2020JC016435 Other URLs:
Villas Bôas, Ana B.; Cornuelle, Bruce. D.; Mazloff, Matthew. R.; Gille, Sarah. T.; Ardhuin, Fabrice (2020). Wave-Current Interactions at Meso and Submesoscales: Insights from Idealized Numerical Simulations, Journal of Physical Oceanography, 1-45, 10.1175/JPO-D-20-0151.1. Title: Wave-Current Interactions at Meso and Submesoscales : Insights from Idealized Numerical Simulations Type: Journal article Publication: Journal of Physical Oceanography Author(s): Villas Bôas, Ana B. ; Cornuelle, Bruce. D. ; Mazloff, Matthew. R. ; Gille, Sarah. T. ; Ardhuin, Fabrice Year: 2020 Formatted Citation: Villas Bôas, A. B., B. D. Cornuelle, M. R. Mazloff, S. T. Gille, and F. Ardhuin, 2020 : Wave-Current Interactions at Meso and Submesoscales : Insights from Idealized Numerical Simulations. Journal of Physical Oceanography, 1-45, doi:10.1175/JPO-D-20-0151.1 Abstract: Surface gravity waves play a major function in the exchange of momentum, hotness, department of energy, and gases between the ocean and the air. The interaction between currents and waves can lead to variations in the wave guidance, frequency, and amplitude. In the present influence, we use an ensemble of synthetic currents to force the curl mannequin WAVEWATCH III and assess the relative shock of current deviation and vorticity in modifying several properties of the waves, including direction, period, directional spread, and significant wave acme ( Hs ). We find that the spatial variability of Hs is highly sensitive to the nature of the fundamental current and that refraction is the main mechanism leading to gradients of Hs. The results obtained using celluloid currents were used to interpret the reception of surface waves to naturalistic currents by running an extra set of simulations using the llc4320 MITgcm output in the California Current region. Our findings suggest that wave parameters could be used to detect and characterize potent gradients in the speed field, which is particularly relevant for the Surface Water and Ocean Topography ( SWOT ) satellite arsenic well as several proposed satellite missions. Keywords: ECCO Products Used: LLC_hiresURL: https://journals.ametsoc.org/jpo/article/354999/WaveCurrent-Interactions-at-Meso-and-Submesoscales Other URLs:
Geyer, Florian; Sagen, Hanne; Cornuelle, Bruce; Mazloff, Matthew R.; Vazquez, Heriberto J. (2020). Using a regional ocean model to understand the structure and variability of acoustic arrivals in Fram Strait, The Journal of the Acoustical Society of America, 2 (147), 1042-1053, 10.1121/10.0000513. Title: Using a regional ocean model to understand the structure and variability of acoustic arrivals in Fram Strait Type: Journal article Publication: The Journal of the Acoustical Society of America Author(s): Geyer, Florian ; Sagen, Hanne ; Cornuelle, Bruce ; Mazloff, Matthew R. ; Vazquez, Heriberto J. Year: 2020 Formatted Citation: Geyer, F., H. Sagen, B. Cornuelle, M. R. Mazloff, and H. J. Vazquez, 2020 : Using a regional ocean model to understand the social organization and variability of acoustic arrivals in Fram Strait. The Journal of the Acoustical Society of America, 147 ( 2 ), 1042-1053, doi:10.1121/10.0000513 Abstract: Keywords: ECCO Products Used: ASTEURL: http://asa.scitation.org/doi/10.1121/10.0000513 Other URLs:
Hieronymus, Magnus; Nycander, Jonas (2020). Interannual Variability of the Overturning and Energy Transport in the Atmosphere and Ocean During the Late Twentieth Century with Implications for Precipitation and Sea Level, Journal of Climate, 1 (33), 317-338, 10.1175/JCLI-D-19-0204.1. Title: Interannual Variability of the Overturning and Energy Transport in the Atmosphere and Ocean During the Late Twentieth Century with Implications for Precipitation and Sea Level Type: Journal article Publication: Journal of Climate Author(s): Hieronymus, Magnus ; Nycander, Jonas Year: 2020 Formatted Citation: Hieronymus, M., and J. Nycander, 2020 : Interannual Variability of the Overturning and Energy Transport in the Atmosphere and Ocean During the Late Twentieth Century with Implications for Precipitation and Sea Level. J. Clim., 33 ( 1 ), 317-338, doi:10.1175/JCLI-D-19-0204.1 Abstract: The overturning circulations in the air and ocean transport energy from the tropics to higher latitudes and thereby modulate Earth ‘s climate. The interannual variability in the revoke over the survive 40 years is found to be dominated by two match atmosphere-ocean modes. The first is related to the meridional motion of the intertropical convergence zone and the second to El Niño. Both modes have a solid determine on the sea charge unevenness in the tropical Indo-Pacific Ocean. The interannual unevenness of the cross-equatorial energy enchant is dominated by the beginning mode, and the variability is larger in the Indo-Pacific Ocean than in the Atlantic Ocean or the atmosphere. Our results suggest an authoritative function of oceanic department of energy conveyance in setting haste patterns in the tropics and a key function of the Indo-Pacific Ocean as a climate modulator. Keywords: ECCO Products Used: ECCO-V4URL: http://journals.ametsoc.org/doi/10.1175/JCLI-D-19-0204.1 Other URLs:
Peng, Qihua; Xie, Shang-Ping; Wang, Dongxiao; Kamae, Youichi; Zhang, Hong; Hu, Shineng; Zheng, Xiao-Tong; Wang, Weiqiang (2020). Eastern Pacific Wind Effect on the Evolution of El Niño: Implications for ENSO Diversity, Journal of Climate, 8 (33), 3197-3212, 10.1175/JCLI-D-19-0435.1. Title: Eastern Pacific Wind Effect on the Evolution of El Niño : Implications for ENSO Diversity Type: Journal article Publication: Journal of Climate Author(s): Peng, Qihua ; Xie, Shang-Ping ; Wang, Dongxiao ; Kamae, Youichi ; Zhang, Hong ; Hu, Shineng ; Zheng, Xiao-Tong ; Wang, Weiqiang Year: 2020 Formatted Citation: Peng, Q., S. Xie, D. Wang, Y. Kamae, H. Zhang, S. Hu, X. Zheng, and W. Wang, 2020 : Eastern Pacific Wind Effect on the Evolution of El Niño : Implications for ENSO Diversity. J. Clim., 33 ( 8 ), 3197-3212, doi:10.1175/JCLI-D-19-0435.1 Abstract: The influence of eastern tropical Pacific ( EPAC ; 10°S-10°N, 140°-80°W ) tip anomalies on El Niño is investigated using observations and model experiments. Extreme and mince El Niños expose contrasting anomalous wind patterns in the EPAC during the acme and decay phases : westerly wind anomalies during extreme El Niño and southeast ( southwest ) scent anomalies south ( north ) of the equator during centrist El Niño. Experiments with an ocean general circulation exemplary indicate that for extreme El Niño, the east trespass of westerly wind anomalies contributes to the drawn-out positive ocean surface temperature ( SST ) anomalies in the eastern equatorial Pacific throughout boreal bounce by sabotage upwelling and horizontal advection. For mince El Niño, by contrast, both the meridional and zonal anomalous winds over the EPAC are important in the rapid ( dull ) SST cooling south ( north ) of the equator through advection and wind-evaporation-SST feedback. Atmospheric model experiments confirm that these EPAC anomalous winds are primarily forced by tropical SST anomalies. The interplay between scent and SST anomalies suggests positive air-sea feedbacks over EPAC during the decay phase of El Niño. Ocean model results show that the frequency of extreme El Niño increases when EPAC tip anomalies are removed, suggesting the importance of EPAC winds for El Niño diverseness. Keywords: ECCO Products Used: ECCO-V4URL: http://journals.ametsoc.org/doi/10.1175/JCLI-D-19-0435.1 Other URLs:
Wang, Haodi; Chen, Shiyao; Wang, Ning; Yu, Peilong; Yang, Xiao; Wang, Yang; Zhang, Yongchui (2020). Evaluation of multi-model current data in the East/Japan Sea, 2020 IEEE 3rd International Conference on Information Communication and Signal Processing (ICICSP), 486-491, 10.1109/ICICSP50920.2020.9232090. Title: Evaluation of multi-model current data in the East/Japan Sea Type: Conference Proceedings Publication: 2020 IEEE 3rd International Conference on Information Communication and Signal Processing ( ICICSP ) Author(s): Wang, Haodi ; Chen, Shiyao ; Wang, Ning ; Yu, Peilong ; Yang, Xiao ; Wang, Yang ; Zhang, Yongchui Year: 2020 Formatted Citation: Wang, H., S. Chen, N. Wang, P. Yu, X. Yang, Y. Wang, and Y. Zhang, 2020 : evaluation of multi-model current data in the East/Japan Sea. 2020 IEEE 3rd International Conference on Information Communication and Signal Processing ( ICICSP ) IEEE, 486-491 pp. doi:10.1109/ICICSP50920.2020.9232090. Abstract: Keywords: ECCO Products Used: ECCO2URL: https://ieeexplore.ieee.org/document/9232090/ Other URLs:
Kelley, Maxwell; Schmidt, Gavin A.; Nazarenko, Larissa S.; Bauer, Susanne E.; Ruedy, Reto; Russell, Gary L.; Ackerman, Andrew S.; Aleinov, Igor; Bauer, Michael; Bleck, Rainer; Canuto, Vittorio; Cesana, Grégory; Cheng, Ye; Clune, Thomas L.; Cook, Ben I.; Cruz, Carlos A.; Del Genio, Anthony D.; Elsaesser, Gregory S.; Faluvegi, Greg; Kiang, Nancy Y.; Kim, Daehyun; Lacis, Andrew A.; Leboissetier, Anthony; LeGrande, Allegra N.; Lo, Ken K.; Marshall, John; Matthews, Elaine E.; McDermid, Sonali; Mezuman, Keren; Miller, Ron L.; Murray, Lee T.; Oinas, Valdar; Orbe, Clara; García-Pando, Carlos Pérez; Perlwitz, Jan P.; Puma, Michael J.; Rind, David; Romanou, Anastasia; Shindell, Drew T.; Sun, Shan; Tausnev, Nick; Tsigaridis, Kostas; Tselioudis, George; Weng, Ensheng; Wu, Jingbo; Yao, Mao-Sung (2020). GISS-E2.1: Configurations and Climatology, Journal of Advances in Modeling Earth Systems, 8 (12), 10.1029/2019MS002025. Title: GISS-E2.1 : Configurations and Climatology Type: Journal article Publication: Journal of Advances in Modeling Earth Systems Author(s): Kelley, Maxwell ; Schmidt, Gavin A. ; Nazarenko, Larissa S. ; Bauer, Susanne E. ; Ruedy, Reto ; Russell, Gary L. ; Ackerman, Andrew S. ; Aleinov, Igor ; Bauer, Michael ; Bleck, Rainer ; Canuto, Vittorio ; Cesana, Grégory ; Cheng, Ye ; Clune, Thomas L. ; Cook, Ben I. ; Cruz, Carlos A. ; Del Genio, Anthony D. ; Elsaesser, Gregory S. ; Faluvegi, Greg ; Kiang, Nancy Y. ; Kim, Daehyun ; Lacis, Andrew A. ; Leboissetier, Anthony ; LeGrande, Allegra N. ; Lo, Ken K. ; Marshall, John ; Matthews, Elaine E. ; McDermid, Sonali ; Mezuman, Keren ; Miller, Ron L. ; Murray, Lee T. ; Oinas, Valdar ; Orbe, Clara ; García-Pando, Carlos Pérez ; Perlwitz, Jan P. ; Puma, Michael J. ; Rind, David ; Romanou, Anastasia ; Shindell, Drew T. ; Sun, Shan ; Tausnev, Nick ; Tsigaridis, Kostas ; Tselioudis, George ; Weng, Ensheng ; Wu, Jingbo ; Yao, Mao-Sung Year: 2020 Formatted Citation: Kelley, M. and Coauthors, 2020 : GISS-E2.1 : Configurations and Climatology. Journal of Advances in Modeling Earth Systems, 12 ( 8 ), doi:10.1029/2019MS002025 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2019MS002025 Other URLs:
Chaudhuri, Anya; Shankar, D; Aparna, S G; Amol, P; Fernando, V; Kankonkar, A; Michael, G S; Satelkar, N P; Khalap, S T; Tari, A P; Gaonkar, M G; Ghatkar, S; Khedekar, R R (2020). Observed variability of the West India Coastal Current on the continental slope from 2009-2018, Journal of Earth System Science, 1 (129), 57, 10.1007/s12040-019-1322-3. Title: Observed unevenness of the West India Coastal Current on the continental slope from 2009-2018 Type: Journal article Publication: Journal of Earth System Science Author(s): Chaudhuri, Anya ; Shankar, D ; Aparna, S G ; Amol, P ; Fernando, V ; Kankonkar, A ; Michael, G S ; Satelkar, N P ; Khalap, S T ; Tari, A P ; Gaonkar, M G ; Ghatkar, S ; Khedekar, R R Year: 2020 Formatted Citation: Chaudhuri, A. and Coauthors, 2020 : Observed unevenness of the West India Coastal Current on the continental slope from 2009-2018. Journal of Earth System Science, 129 ( 1 ), 57, doi:10.1007/s12040-019-1322-3 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://link.springer.com/10.1007/s12040-019-1322-3 Other URLs:
Ludwigsen, Carsten Ankjær; Khan, Shfaqat Abbas; Andersen, Ole Baltazar; Marzeion, Ben (2020). Vertical Land Motion From Present-Day Deglaciation in the Wider Arctic, Geophysical Research Letters, 19 (47), 10.1029/2020GL088144. Title: Vertical Land Motion From Present-Day Deglaciation in the Wider Arctic Type: Journal article Publication: Geophysical Research Letters Author(s): Ludwigsen, Carsten Ankjær ; Khan, Shfaqat Abbas ; Andersen, Ole Baltazar ; Marzeion, Ben Year: 2020 Formatted Citation: Ludwigsen, C. A., S. A. Khan, O. B. Andersen, and B. Marzeion, 2020 : vertical Land Motion From Present-Day Deglaciation in the Wider Arctic. Geophys. Res. Lett., 47 ( 19 ), doi:10.1029/2020GL088144 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/10.1029/2020GL088144 Other URLs:
Yool, A.; Palmiéri, J.; Jones, C. G.; Sellar, A. A.; Mora, L.; Kuhlbrodt, T.; Popova, E. E.; Mulcahy, J. P.; Wiltshire, A.; Rumbold, S. T.; Stringer, M.; Hill, R. S. R.; Tang, Y.; Walton, J.; Blaker, A.; Nurser, A. J. G.; Coward, A. C.; Hirschi, J.; Woodward, S.; Kelley, D. I.; Ellis, R.; Rumbold-Jones, S. (2020). Spin-up of UK Earth System Model 1 (UKESM1) for CMIP6, Journal of Advances in Modeling Earth Systems, 8 (12), 10.1029/2019MS001933. Title: Spin-up of UK Earth System Model 1 ( UKESM1 ) for CMIP6 Type: Journal article Publication: Journal of Advances in Modeling Earth Systems Author(s): Yool, A. ; Palmiéri, J. ; Jones, C. G. ; Sellar, A. A. ; Mora, L. ; Kuhlbrodt, T. ; Popova, E. E. ; Mulcahy, J. P. ; Wiltshire, A. ; Rumbold, S. T. ; Stringer, M. ; Hill, R. S. R. ; Tang, Y. ; Walton, J. ; Blaker, A. ; Nurser, A. J. G. ; Coward, A. C. ; Hirschi, J. ; Woodward, S. ; Kelley, D. I. ; Ellis, R. ; Rumbold-Jones, S. Year: 2020 Formatted Citation: Yool, A. and Coauthors, 2020 : Spin-up of UK Earth System Model 1 ( UKESM1 ) for CMIP6. Journal of Advances in Modeling Earth Systems, 12 ( 8 ), doi:10.1029/2019MS001933 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2019MS001933 Other URLs:
Erickson, Zachary K.; Thompson, Andrew F.; Callies, Jörn; Yu, Xiaolong; Garabato, Alberto Naveira; Klein, Patrice (2020). The Vertical Structure of Open-Ocean Submesoscale Variability during a Full Seasonal Cycle, Journal of Physical Oceanography, 1 (50), 145-160, 10.1175/JPO-D-19-0030.1. Title: The Vertical Structure of Open-Ocean Submesoscale Variability during a Full Seasonal Cycle Type: Journal article Publication: Journal of Physical Oceanography Author(s): Erickson, Zachary K. ; Thompson, Andrew F. ; Callies, Jörn ; Yu, Xiaolong ; Garabato, Alberto Naveira ; Klein, Patrice Year: 2020 Formatted Citation: Erickson, Z. K., A. F. Thompson, J. Callies, X. Yu, A. N. Garabato, and P. Klein, 2020 : The Vertical Structure of Open-Ocean Submesoscale Variability during a Full Seasonal Cycle. Journal of Physical Oceanography, 50 ( 1 ), 145-160, doi:10.1175/JPO-D-19-0030.1 Abstract: Submesoscale dynamics are typically intensified at boundaries and assumed to weaken below the assorted layer in the open ocean. here, we assess both the seasonality and the vertical distribution of submesoscale motions in an open-ocean region of the northeast Atlantic. Second-order structure functions, or variability in properties separated by distance, are calculated from submesoscale-resolving ocean glider and moor observations, vitamin a well as a 1/48° numerical ocean model. This dataset combines a temporal coverage that extends through a full seasonal cycle, a horizontal settlement that captures spatial scales ampere small as 1 kilometer, and vertical sample that provides near-continuous coverage over the upper 1000 m. While energizing and likely energies undergo a seasonal cycle, being largest during the winter, social organization officiate slopes, influenced by dynamic characteristics, do not exhibit a firm seasonality. furthermore, structure function slopes show weak erect variations ; there is not a potent change in properties across the basal of the mix layer. additionally, we compare the observations to output from a high-resolution numeral model. The model does not represent unevenness associated with superinertial motions and does not capture an observe reduction in submesoscale kinetic energy that occurs throughout the water column in spring. overall, these results suggest that the transfer of mix level submesoscale unevenness down to depths below the traditionally defined shuffle layer is important throughout the weakly stratified subpolar modality waters. Keywords: ECCO Products Used: LLC_hiresURL: http://journals.ametsoc.org/doi/10.1175/JPO-D-19-0030.1 Other URLs:
Jiang, Huichang; Yu, Liu; Xu, Hongzhou; Vetter, Philip A. (2020). Evaluation of Global Ocean Models on Simulating the Deep Western Boundary Current in the Pacific, Atmosphere-Ocean, 1-12, 10.1080/07055900.2020.1789547. Title: evaluation of Global Ocean Models on Simulating the Deep Western Boundary Current in the Pacific Type: Journal article Publication: Atmosphere-Ocean Author(s): Jiang, Huichang ; Yu, Liu ; Xu, Hongzhou ; Vetter, Philip A. Year: 2020 Formatted Citation: Jiang, H., L. Yu, H. Xu, and P. A. Vetter, 2020 : evaluation of Global Ocean Models on Simulating the Deep Western Boundary Current in the Pacific. Atmosphere-Ocean, 1-12, doi:10.1080/07055900.2020.1789547 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://www.tandfonline.com/doi/full/10.1080/07055900.2020.1789547 Other URLs:
Yin, Yi; Byrne, Brendan; Liu, Junjie; Wennberg, Paul O.; Davis, Kenneth J.; Magney, Troy; Köhler, Philipp; He, Liyin; Jeyaram, Rupesh; Humphrey, Vincent; Gerken, Tobias; Feng, Sha; Digangi, Joshua P.; Frankenberg, Christian (2020). Cropland Carbon Uptake Delayed and Reduced by 2019 Midwest Floods, AGU Advances, 1 (1), 10.1029/2019AV000140. Title: Cropland Carbon Uptake Delayed and Reduced by 2019 Midwest Floods Type: Journal article Publication: AGU Advances Author(s): Yin, Yi ; Byrne, Brendan ; Liu, Junjie ; Wennberg, Paul O. ; Davis, Kenneth J. ; Magney, Troy ; Köhler, Philipp ; He, Liyin ; Jeyaram, Rupesh ; Humphrey, Vincent ; Gerken, Tobias ; Feng, Sha ; Digangi, Joshua P. ; Frankenberg, Christian Year: 2020 Formatted Citation: Yin, Y. and Coauthors, 2020 : Cropland Carbon Uptake Delayed and Reduced by 2019 Midwest Floods. AGU Advances, 1 ( 1 ), doi:10.1029/2019AV000140 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2019AV000140 Other URLs:
Nguyen, An T.; Heimbach, Patrick; Garg, Vikram V.; Ocaña, Victor; Lee, Craig; Rainville, Luc (2020). Impact of Synthetic Arctic Argo-Type Floats in a Coupled Ocean-Sea Ice State Estimation Framework, Journal of Atmospheric and Oceanic Technology, 8 (37), 1477-1495, 10.1175/JTECH-D-19-0159.1. Title: Impact of Synthetic Arctic Argo-Type Floats in a couple Ocean-Sea Ice State Estimation Framework Type: Journal article Publication: Journal of Atmospheric and Oceanic Technology Author(s): Nguyen, An T. ; Heimbach, Patrick ; Garg, Vikram V. ; Ocaña, Victor ; Lee, Craig ; Rainville, Luc Year: 2020 Formatted Citation: Nguyen, A. T., P. Heimbach, V. V. Garg, V. Ocaña, C. Lee, and L. Rainville, 2020 : shock of Synthetic Arctic Argo-Type Floats in a couple Ocean-Sea Ice State Estimation Framework. Journal of Atmospheric and Oceanic Technology, 37 ( 8 ), 1477-1495, doi:10.1175/JTECH-D-19-0159.1 Abstract: The lack of continuous spatial and temporal sample of hydrographic measurements in large parts of the Arctic Ocean remains a major obstacle for quantifying mean state and unevenness of the Arctic Ocean circulation. This shortcoming motivates an judgment of the utility of Argo-type floats, the challenges of deploying such floats ascribable to the presence of sea frost, and the implications of elongated times of no surfacing on hydrographic inferences. Within the model of an Arctic coupled ocean-sea ice state estimate that is constrained to available satellite and in situ observations, we establish metrics for quantifying the utility of such floats. The likelihood of float surfacing powerfully correlates with the annual ocean ice minimum cover. Within the float life of 4-5 years, surfacing frequency ranges from 10-100 days in seasonally ocean ice-covered regions to 1-3 years in multiyear sea ice-covered regions. The longer the float drift under internal-combustion engine without surfacing, the larger the doubt in its status, which translates into larger uncertainties in hydrographic measurements. Below the mix layer, particularly in the western Arctic, normalize errors remain below 1, suggesting that measurements along a path whose entirely known positions are the beginning and end points can help constrain numeric models and reduce hydrographic uncertainties. The error assessment presented is a first footprint in the development of quantitative methods for guiding the design of observing networks. These results can and should be used to inform a float network blueprint with indicate locations of float deployment and associated expect hydrographic uncertainties. Keywords: ECCO Products Used: ASTE ; LLC_hiresURL: https://journals.ametsoc.org/jtech/article/37/8/1477/348747/Impact-of-Synthetic-Arctic-ArgoType-Floats-in-a Other URLs:
Mackay, Neill; Wilson, Chris; Holliday, N. Penny; Zika, Jan D. (2020). The Observation-Based Application of a Regional Thermohaline Inverse Method to Diagnose the Formation and Transformation of Water Masses North of the OSNAP Array from 2013 to 2015, Journal of Physical Oceanography, 6 (50), 1533-1555, 10.1175/JPO-D-19-0188.1. Title: The Observation-Based Application of a Regional Thermohaline Inverse Method to Diagnose the Formation and Transformation of Water Masses North of the OSNAP Array from 2013 to 2015 Type: Journal article Publication: Journal of Physical Oceanography Author(s): Mackay, Neill ; Wilson, Chris ; Holliday, N. Penny ; Zika, Jan D. Year: 2020 Formatted Citation: Mackay, N., C. Wilson, N. P. Holliday, and J. D. Zika, 2020 : The Observation-Based Application of a Regional Thermohaline Inverse Method to Diagnose the Formation and Transformation of Water Masses North of the OSNAP Array from 2013 to 2015. Journal of Physical Oceanography, 50 ( 6 ), 1533-1555, doi:10.1175/JPO-D-19-0188.1 Abstract: The military capability of the meridional revoke circulation ( MOC ) in the North Atlantic is dependent upon the formation of dense waters that occurs at high northerly latitudes. Wintertime deep convection in the Labrador and Irminger Seas forms the intercede water mass known as Labrador Sea Water ( LSW ). Changes in the rate of formation and subsequent export of LSW are thought to play a character in MOC unevenness, but geological formation rates are changeable and the link between constitution and export is complex. We present the first observation-based application of a recently developed regional thermohaline inverse method ( RTHIM ) to a region encompassing the Arctic and partially of the North Atlantic subpolar coil for the years 2013, 2014, and 2015. RTHIM is a novel method acting that can diagnose the formation and export rates of water masses such as the LSW identified by their temperature and salt, apportioning the formation rates into contributions from come on fluxes and department of the interior shuffle. We find LSW formation rates of up to 12 Sv ( 1 Sv ≡ 10 6 meter 3 mho −1 ) during 2014-15, a period of potent winter convection, and around half that value during 2013 when convection was weak. We besides show that the newly convected urine is not exported directly, but alternatively is interracial isopycnally with warm, salty waters that have been advected into the region, before the products are then exported. RTHIM solutions for 2015 book, inflame, and fresh water transports are compared with observations from a mooring array deployed for the Overturning in the Subpolar North Atlantic Program ( OSNAP ) and show dear agreement, lending robustness to our results. Keywords: ECCO Products Used: ECCO-V4URL: http://journals.ametsoc.org/doi/10.1175/JPO-D-19-0188.1 Other URLs:
Zhang, Yanxu; Soerensen, Anne L.; Schartup, Amina T.; Sunderland, Elsie M. (2020). A Global Model for Methylmercury Formation and Uptake at the Base of Marine Food Webs, Global Biogeochemical Cycles, 2 (34), 10.1029/2019GB006348. Title: A Global Model for Methylmercury Formation and Uptake at the Base of Marine Food Webs Type: Journal article Publication: Global Biogeochemical Cycles Author(s): Zhang, Yanxu ; Soerensen, Anne L. ; Schartup, Amina T. ; Sunderland, Elsie M. Year: 2020 Formatted Citation: Zhang, Y., A. L. Soerensen, A. T. Schartup, and E. M. Sunderland, 2020 : A Global Model for Methylmercury Formation and Uptake at the Base of Marine Food Webs. Global Biogeochemical Cycles, 34 ( 2 ), doi:10.1029/2019GB006348 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2019GB006348 Other URLs:
Rovira-Navarro, Marc; van der Wal, Wouter; Barletta, Valentina R.; Root, Bart C.; Sandberg Sørensen, Louise (2020). GRACE constraints on Earth rheology of the Barents Sea and Fennoscandia, Solid Earth, 2 (11), 379-395, 10.5194/se-11-379-2020. Title: GRACE constraints on Earth rheology of the Barents Sea and Fennoscandia Type: Journal article Publication: Solid earth Author(s): Rovira-Navarro, Marc ; van five hundred Wal, Wouter ; Barletta, Valentina R. ; Root, Bart C. ; Sandberg Sørensen, Louise Year: 2020 Formatted Citation: Rovira-Navarro, M., W. van five hundred Wal, V. R. Barletta, B. C. Root, and L. Sandberg Sørensen, 2020 : GRACE constraints on Earth rheology of the Barents Sea and Fennoscandia. Solid Earth, 11 ( 2 ), 379-395, doi:10.5194/se-11-379-2020 Abstract: The Barents Sea is situated on a continental margin and was home to a bombastic ice sheet at the last Glacial Maximum. Studying the solid Earth reaction to the removal of this ice sheet ( glacial isostatic adaptation ; GIA ) can give penetration into the subsurface rheology of this region. however, because the region is presently covered by ocean, uplift measurements from the center of the former methamphetamine sheet are not available. The Gravity Recovery and Climate Experiment ( GRACE ) gravity data have been shown to be able to constrain GIA. hera we analyze GRACE datum for the menstruation 2003-2015 in the Barents Sea and use the data to constrain GIA models for the region. We study the effect of doubt in non-tidal ocean mass models that are used to correct GRACE data and find that it should be taken into account when studying firm earth signals in oceanic areas from GRACE. We compare GRACE-derived gravity affray rates with GIA model predictions for different frost deglaciation chronologies of the final glacial hertz and find that best-fitting models have an amphetamine curtain viscosity equal or higher than 3×1020 Pa s. Following a similar routine for Fennoscandia we find that the preferable upper mantle viscosity there is a factor 2 larger than in the Barents Sea for a compass of lithospheric thickness values. This factor is shown to be consistent with the ratio of viscosities derived for both regions from ball-shaped seismic models. The viscosity remainder can serve as constraint for geodynamic models of the sphere. Keywords: ECCO Products Used: LLC270URL: https://se.copernicus.org/articles/11/379/2020/ Other URLs:
Nelson, A.D.; Arbic, B.K.; Menemenlis, D.; Peltier, W.R.; Alford, M.H.; Grisouard, N.; Klymak, J.M. (2020). Improved Internal Wave Spectral Continuum in a Regional Ocean Model, Journal of Geophysical Research: Oceans, 10.1029/2019JC015974. Title: Improved Internal Wave Spectral Continuum in a regional Ocean Model Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Nelson, A.D. ; Arbic, B.K. ; Menemenlis, D. ; Peltier, W.R. ; Alford, M.H. ; Grisouard, N. ; Klymak, J.M. Year: 2020 Formatted Citation: Nelson, A., B. Arbic, D. Menemenlis, W. Peltier, M. Alford, N. Grisouard, and J. Klymak, 2020 : Improved Internal Wave Spectral Continuum in a regional Ocean Model. J. Geophys. Res. Ocean., doi:10.1029/2019JC015974 Abstract: Keywords: ECCO Products Used: LLC_hiresURL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2019JC015974 Other URLs:
Hutter, Nils; Losch, Martin (2020). Feature-based comparison of sea ice deformation in lead-permitting sea ice simulations, The Cryosphere, 1 (14), 93-113, 10.5194/tc-14-93-2020. Title: Feature-based comparison of sea ice deformation in lead-permitting ocean internal-combustion engine simulations Type: Journal article Publication: The Cryosphere Author(s): Hutter, Nils ; Losch, Martin Year: 2020 Formatted Citation: Hutter, N., and M. Losch, 2020 : Feature-based comparison of sea frosting deformation in lead-permitting ocean ice simulations. Cryosph., 14 ( 1 ), 93-113, doi:10.5194/tc-14-93-2020 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://www.the-cryosphere.net/14/93/2020/ Other URLs:
Song, Xiangzhou (2020). Explaining the zonal asymmetry in the air-sea net heat flux climatology over the Antarctic Circumpolar Current, Journal of Geophysical Research: Oceans, 10.1029/2020JC016215. Title: Explaining the zonal asymmetry in the air-sea net estrus flux density climatology over the Antarctic Circumpolar Current Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Song, Xiangzhou Year: 2020 Formatted Citation: Song, X., 2020 : Explaining the zonal asymmetry in the air-sea web heat flux climatology over the Antarctic Circumpolar Current. J. Geophys. Res. Ocean., doi:10.1029/2020JC016215 Abstract: Keywords: ECCO Products Used: ECCO-V4 ; SOSEURL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2020JC016215 Other URLs:
Siegelman, Lia; Klein, Patrice; Thompson, Andrew F.; Torres, Hector S.; Menemenlis, Dimitris (2020). Altimetry-Based Diagnosis of Deep-Reaching Sub-Mesoscale Ocean Fronts, Fluids, 3 (5), 145, 10.3390/fluids5030145. Title: Altimetry-Based diagnosis of Deep-Reaching Sub-Mesoscale Ocean Fronts Type: Journal article Publication: Fluids Author(s): Siegelman, Lia ; Klein, Patrice ; Thompson, Andrew F. ; Torres, Hector S. ; Menemenlis, Dimitris Year: 2020 Formatted Citation: Siegelman, L., P. Klein, A. F. Thompson, H. S. Torres, and D. Menemenlis, 2020 : Altimetry-Based diagnosis of Deep-Reaching Sub-Mesoscale Ocean Fronts. Fluids, 5 ( 3 ), 145, doi:10.3390/fluids5030145 Abstract: Recent studies demonstrate that energetic sub-mesoscale fronts ( 10-50 kilometer width ) extend in the ocean inner, driving bombastic vertical velocities and associated fluxes. however, diagnosing the dynamics of these deep-reaching fronts from in situ observations remains challenging because of the lack of data on the three-d structure of the horizontal speed. here, a realistic numeric simulation in the Antarctic Circumpolar Current ( ACC ) is used to study the dynamics of submesocale fronts in relation to speed gradients, responsible for the formation of these fronts. Results highlight that the stirring properties of the flow at depth, which are related to the speed gradients, can be inferred from finite-size Lyapunov advocate ( FSLE ) at the surface. Satellite altimetry observations of FSLE and speed gradients are then used in combination with late in situ observations collected by an elephant seal in the ACC to reconstruct frontal dynamics and their consort vertical velocities down to 500 m. The approach proposed here is well suited for the analysis of sub-mesoscale-resolving datasets and the design of future sub-mesoscale field campaigns. Keywords: ECCO Products Used: LLC_hiresURL: https://www.mdpi.com/2311-5521/5/3/145 Other URLs:
Dong, Jihai; Fox-Kemper, Baylor; Zhang, Hong; Dong, Changming (2020). The Seasonality of Submesoscale Energy Production, Content, and Cascade, Geophysical Research Letters, 6 (47), 10.1029/2020GL087388. Title: The Seasonality of Submesoscale Energy Production, Content, and Cascade Type: Journal article Publication: Geophysical Research Letters Author(s): Dong, Jihai ; Fox-Kemper, Baylor ; Zhang, Hong ; Dong, Changming Year: 2020 Formatted Citation: Dong, J., B. Fox-Kemper, H. Zhang, and C. Dong, 2020 : The Seasonality of Submesoscale Energy Production, Content, and Cascade. Geophys. Res. Lett., 47 ( 6 ), doi:10.1029/2020GL087388 Abstract: Keywords: ECCO Products Used: LLC_hiresURL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2020GL087388 Other URLs:
Wu, Wenbo; Zhan, Zhongwen; Peng, Shirui; Ni, Sidao; Callies, Jörn (2020). Seismic ocean thermometry, Science, 6510 (369), 1510-1515, 10.1126/science.abb9519. Title: Seismic ocean thermometry Type: Journal article Publication: skill Author(s): Wu, Wenbo ; Zhan, Zhongwen ; Peng, Shirui ; Ni, Sidao ; Callies, Jörn Year: 2020 Formatted Citation: Wu, W., Z. Zhan, S. Peng, S. Ni, and J. Callies, 2020 : seismic ocean thermometry. Science, 369 ( 6510 ), 1510-1515, doi:10.1126/science.abb9519 Abstract: More than 90 % of the energy trapped on ground by increasingly abundant greenhouse gases is absorbed by the ocean. Monitoring the resulting ocean thaw remains a challenging sample distribution problem. To complement existing luff measurements, we introduce a method acting that infers basin-scale deep-ocean temperature changes from the travel times of sound waves that are generated by repeating earthquakes. A first execution of this seismic ocean thermometry constrains temperature anomalies averaged across a 3000-kilometer-long section in the equatorial East indian Ocean with a standard error of 0.0060 kelvin. between 2005 and 2016, we find temperature fluctuations on time scales of 12 months, 6 months, and ~10 days, and we infer a decadal warming course that well exceeds previous estimates. Keywords: ECCO Products Used: ECCO-V4URL: https://www.sciencemag.org/lookup/doi/10.1126/science.abb9519 Other URLs:
Anandh, Thanka Swamy; Das, Bijan Kumar; Kuttippurath, J.; Chakraborty, Arun (2020). A coupled model analyses on the interaction between oceanic eddies and tropical cyclones over the Bay of Bengal, Ocean Dynamics, 3 (70), 327-337, 10.1007/s10236-019-01330-x. Title: A match model analyses on the interaction between oceanic eddies and tropical cyclones over the Bay of Bengal Type: Journal article Publication: Ocean Dynamics Author(s): Anandh, Thanka Swamy ; Das, Bijan Kumar ; Kuttippurath, J. ; Chakraborty, Arun Year: 2020 Formatted Citation: Anandh, T. S., B. K. Das, J. Kuttippurath, and A. Chakraborty, 2020 : A couple model analyses on the interaction between oceanic eddies and tropical cyclones over the Bay of Bengal. Ocean Dynamics, 70 ( 3 ), 327-337, doi:10.1007/s10236-019-01330-x Abstract: Keywords: ECCO Products Used: ECCO2URL: http://link.springer.com/10.1007/s10236-019-01330-x Other URLs:
Levang, Samuel J.; Schmitt, Raymond W. (2020). Intergyre Salt Transport in the Climate Warming Response, Journal of Physical Oceanography, 1 (50), 255-268, 10.1175/JPO-D-19-0166.1. Title: Intergyre Salt Transport in the Climate Warming Response Type: Journal article Publication: Journal of Physical Oceanography Author(s): Levang, Samuel J. ; Schmitt, Raymond W. Year: 2020 Formatted Citation: Levang, S. J., and R. W. Schmitt, 2020 : Intergyre Salt Transport in the Climate Warming Response. Journal of Physical Oceanography, 50 ( 1 ), 255-268, doi:10.1175/JPO-D-19-0166.1 Abstract: Regional connectivity is crucial to the ball-shaped climate salt response, particularly because salt anomalies do not have a damping feedback with atmospheric fresh water fluxes and may therefore be advected over farseeing distances by ocean circulation, resulting in nonlocal influences. Climate model intercomparison experiments such as CMIP5 exhibit large doubt in some aspects of the brininess response, hypothesized here to be a solution of ocean dynamics. We use two types of Lagrangian particle tracking experiments to investigate pathways of exchange for salt anomalies. The first uses forward trajectories to estimate average conveyance time scales between water cycle regimes. The moment uses reverse trajectories and a fresh water accumulation method acting to quantitatively identify distant influences in the salt reception. additionally, we compare speed fields with both resolved and parameterized eddies to understand the impact of eddy stirring on intergyre exchange. These experiments show that surface anomalies are readily exchanged within the ocean gyres by the mean circulation, but intergyre exchange is slower and largely eddy driven. These dynamics are used to analyze the North Atlantic brininess response to climate calefacient and water system cycle intensification, where the system is broadly forced with fresh surface anomalies in the subpolar coil and salty surface anomalies in the subtropical gyres. Under these competing forcings, strong intergyre eddy fluxes carry anomalously piquant subtropical water into the subpolar coil which balances out much of the local anesthetic fresh water input. Keywords: ECCO Products Used: ECCO-V4URL: http://journals.ametsoc.org/doi/10.1175/JPO-D-19-0166.1 Other URLs:
Huang, Jiamei; Zhuang, Wei; Yan, Xiao-Hai; Wu, Zelun (2020). Impacts of the upper-ocean salinity variations on the decadal sea level change in the southeast Indian Ocean during the Argo era, Acta Oceanologica Sinica, 10.1007/s13131-020-1574-4. Title: Impacts of the upper-ocean brininess variations on the decadal sea level change in the southeasterly indian Ocean during the Argo earned run average Type: Journal article Publication: Acta Oceanologica Sinica Author(s): Huang, Jiamei ; Zhuang, Wei ; Yan, Xiao-Hai ; Wu, Zelun Year: 2020 Formatted Citation: Huang, J., W. Zhuang, X. Yan, and Z. Wu, 2020 : Impacts of the upper-ocean salt variations on the decadal ocean floor transfer in the southeast amerind Ocean during the Argo era. Acta Oceanologica Sinica, doi:10.1007/s13131-020-1574-4 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: http://link.springer.com/10.1007/s13131-020-1574-4 Other URLs:
Guan, Cong; Wang, Fan; Hu, Shijian (2020). The role of oceanic feedbacks in the 2014-2016 El Niño events as derived from ocean reanalysis data, Journal of Oceanology and Limnology, 5 (38), 1394-1407, 10.1007/s00343-020-0038-1. Title: The character of oceanic feedbacks in the 2014-2016 El Niño events as derived from ocean reanalysis data Type: Journal article Publication: Journal of Oceanology and Limnology Author(s): Guan, Cong ; Wang, Fan ; Hu, Shijian Year: 2020 Formatted Citation: Guan, C., F. Wang, and S. Hu, 2020 : The character of oceanic feedbacks in the 2014-2016 El Niño events as derived from ocean reanalysis data. Journal of Oceanology and Limnology, 38 ( 5 ), 1394-1407, doi:10.1007/s00343-020-0038-1 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://link.springer.com/10.1007/s00343-020-0038-1 Other URLs:
Wang, Linsong; Chen, Chao; Ma, Xian; Fu, Zhengyan; Zheng, Yuhao; Peng, Zhenran (2020). Evaluation of GRACE mascon solutions using in-situ geodetic data: The case of hydrologic-induced crust displacement in the Yangtze River Basin, Science of The Total Environment (707), 135606, 10.1016/j.scitotenv.2019.135606. Title: Evaluation of GRACE mascon solutions using in-situ geodetic data : The case of hydrologic-induced crust supplanting in the Yangtze River Basin Type: Journal article Publication: Science of The Total Environment Author(s): Wang, Linsong ; Chen, Chao ; Ma, xian ; Fu, Zhengyan ; Zheng, Yuhao ; Peng, Zhenran Year: 2020 Formatted Citation: Wang, L., C. Chen, X. Ma, Z. Fu, Y. Zheng, and Z. Peng, 2020 : evaluation of GRACE mascon solutions using in-situ geodetic data : The casing of hydrologic-induced crust displacement in the Yangtze River Basin. science of The Total Environment, 707, 135606, doi:10.1016/j.scitotenv.2019.135606 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://linkinghub.elsevier.com/retrieve/pii/S0048969719356013 Other URLs:
Wang, Tianyu; Gille, Sarah T.; Mazloff, Matthew R.; Zilberman, Nathalie V.; Du, Yan (2020). Eddy-induced acceleration of Argo floats, Journal of Geophysical Research: Oceans, 10.1029/2019JC016042. Title: Eddy-induced acceleration of Argo floats Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Wang, Tianyu ; Gille, Sarah T. ; Mazloff, Matthew R. ; Zilberman, Nathalie V. ; Du, Yan Year: 2020 Formatted Citation: Wang, T., S. T. Gille, M. R. Mazloff, N. V. Zilberman, and Y. Du, 2020 : Eddy-induced acceleration of Argo floats. J. Geophys. Res. Ocean., doi:10.1029/2019JC016042 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://onlinelibrary.wiley.com/doi/10.1029/2019JC016042 Other URLs:
Carroll, D.; Menemenlis, D.; Adkins, J. F.; Bowman, K. W.; Brix, H.; Dutkiewicz, Stephanie; Fenty, I.; Gierach, M. M.; Hill, C.; Jahn, O.; Landschützer, P.; Lauderdale, J. M.; Liu, J.; Manizza, M.; Naviaux, J. D.; Rödenbeck, C.; Schimel, D. S.; Van der Stocken, T.; Zhang, H. (2020). The ECCO-Darwin Data-assimilative Global Ocean Biogeochemistry Model: Estimates of Seasonal to Multi-decadal Surface Ocean pCO 2 and Air-sea CO 2 Flux, Journal of Advances in Modeling Earth Systems, 10.1029/2019MS001888. Title: The ECCO-Darwin Data-assimilative Global Ocean Biogeochemistry Model : Estimates of Seasonal to Multi-decadal Surface Ocean pCO 2 and Air-sea CO 2 Flux Type: Journal article Publication: Journal of Advances in Modeling Earth Systems Author(s): Carroll, D. ; Menemenlis, D. ; Adkins, J. F. ; Bowman, K. W. ; Brix, H. ; Dutkiewicz, Stephanie ; Fenty, I. ; Gierach, M. M. ; Hill, C. ; Jahn, O. ; Landschützer, P. ; Lauderdale, J. M. ; Liu, J. ; Manizza, M. ; Naviaux, J. D. ; Rödenbeck, C. ; Schimel, D. S. ; Van five hundred Stocken, T. ; Zhang, H. Year: 2020 Formatted Citation: Carroll, D. and Coauthors, 2020 : The ECCO-Darwin Data-assimilative Global Ocean Biogeochemistry Model : Estimates of Seasonal to Multi-decadal Surface Ocean pCO 2 and Air-sea CO 2 Flux. Journal of Advances in Modeling Earth Systems, doi:10.1029/2019MS001888 Abstract: Keywords: ECCO Products Used: ECCO2 ; LLC270URL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2019MS001888 Other URLs:
Nguyen, An T.; Woodgate, Rebecca A.; Heimbach, Patrick (2020). Elucidating large-scale atmospheric controls on Bering Strait throughflow variability using a data-constrained ocean model and its adjoint, Journal of Geophysical Research: Oceans, 10.1029/2020JC016213. Title: Elucidating large-scale atmospheric controls on Bering Strait throughflow variability using a data-constrained ocean model and its adjoint Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Nguyen, An T. ; Woodgate, Rebecca A. ; Heimbach, Patrick Year: 2020 Formatted Citation: Nguyen, A. T., R. A. Woodgate, and P. Heimbach, 2020 : Elucidating large-scale atmospheric controls on Bering Strait throughflow unevenness using a data-constrained ocean model and its adjoint. J. Geophys. Res. Ocean., doi:10.1029/2020JC016213 Abstract: Keywords: ECCO Products Used: ASTE ; ECCO-V4 ; ECCO2 ; adjointURL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2020JC016213 Other URLs:
Piecuch, Christopher G.; Wadehra, Riley (2020). Dynamic Sea Level Variability Due to Seasonal River Discharge: A Preliminary Global Ocean Model Study, Geophysical Research Letters, 4 (47), 10.1029/2020GL086984. Title: Dynamic Sea Level Variability Due to Seasonal River Discharge : A preliminary Global Ocean Model Study Type: Journal article Publication: Geophysical Research Letters Author(s): Piecuch, Christopher G. ; Wadehra, Riley Year: 2020 Formatted Citation: Piecuch, C. G., and R. Wadehra, 2020 : Dynamic Sea Level Variability Due to Seasonal River Discharge : A preliminary Global Ocean Model Study. Geophys. Res. Lett., 47 ( 4 ), doi:10.1029/2020GL086984 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2020GL086984 Other URLs:
Mazloff, Matthew R.; Cornuelle, Bruce; Gille, Sarah T.; Wang, Jinbo (2020). The Importance of Remote Forcing for Regional Modeling of Internal Waves, Journal of Geophysical Research: Oceans, 2 (125), 10.1029/2019JC015623. Title: The Importance of Remote Forcing for Regional Modeling of Internal Waves Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Mazloff, Matthew R. ; Cornuelle, Bruce ; Gille, Sarah T. ; Wang, Jinbo Year: 2020 Formatted Citation: Mazloff, M. R., B. Cornuelle, S. T. Gille, and J. Wang, 2020 : The Importance of Remote Forcing for Regional Modeling of Internal Waves. J. Geophys. Res. Ocean., 125 ( 2 ), doi:10.1029/2019JC015623 Abstract: Keywords: ECCO Products Used: LLC_hiresURL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2019JC015623 Other URLs:
Tandon, Neil F.; Saenko, Oleg A.; Cane, Mark A.; Kushner, Paul J. (2020). Interannual Variability of the Global Meridional Overturning Circulation Dominated by Pacific Variability, Journal of Physical Oceanography, 3 (50), 559-574, 10.1175/JPO-D-19-0129.1. Title: Interannual Variability of the Global Meridional Overturning Circulation Dominated by Pacific Variability Type: Journal article Publication: Journal of Physical Oceanography Author(s): Tandon, Neil F. ; Saenko, Oleg A. ; Cane, Mark A. ; Kushner, Paul J. Year: 2020 Formatted Citation: Tandon, N. F., O. A. Saenko, M. A. Cane, and P. J. Kushner, 2020 : Interannual Variability of the Global Meridional Overturning Circulation Dominated by Pacific Variability. Journal of Physical Oceanography, 50 ( 3 ), 559-574, doi:10.1175/JPO-D-19-0129.1 Abstract: The most outstanding feature of speech of the time-mean global meridional overturning circulation ( MOC ) is the Atlantic MOC ( AMOC ). however, interannual unevenness of the ball-shaped MOC is shown hera to be dominated by Pacific MOC ( PMOC ) variability over the wide depth of the ocean at most latitudes. This dominance of interannual PMOC variability is robust across modern climate models and an experimental state estimate. PMOC interannual variability has large-scale administration, its most outstanding feature being a cross-equatorial cell spanning the tropics. Idealized experiments show that this unevenness is about wholly wind drive. Interannual anomalies of zonal mean zonal wind stress produce zonally integrated Ekman transmit anomalies that are larger in the Pacific Ocean than in the Atlantic Ocean, merely because the Pacific is wider than the Atlantic at most latitudes. This contrast in Ekman transportation unevenness implies greater unevenness in the near-surface arm of the PMOC when compared with the near-surface outgrowth of the AMOC. These near-surface variations in turn drive compensating menstruate anomalies below the Ekman layer. Because the baroclinic alteration prison term is longer than a class at most latitudes, these compensating menstruation anomalies have baroclinic structure spanning the full depth of the ocean. extra analysis reveals that interannual PMOC variations are the dominant contribution to interannual variations of the ball-shaped meridional heat tape drive. There is besides testify of interaction between interannual PMOC variability and El Niño-Southern Oscillation. Keywords: ECCO Products Used: ECCO-V4URL: http://journals.ametsoc.org/doi/10.1175/JPO-D-19-0129.1 Other URLs:
Desbruyères, D. G.; Sinha, B.; McDonagh, E. L.; Josey, S. A.; Holliday, N. P.; Smeed, D. A.; New, A. L.; Megann, A.; Moat, B. I. (2020). Importance of boundary processes for heat uptake in the Subpolar North Atlantic, Journal of Geophysical Research: Oceans, 10.1029/2020JC016366. Title: Importance of boundary processes for hotness consumption in the Subpolar North Atlantic Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Desbruyères, D. G. ; Sinha, B. ; McDonagh, E. L. ; Josey, S. A. ; Holliday, N. P. ; Smeed, D. A. ; New, A. L. ; Megann, A. ; Moat, B. I. Year: 2020 Formatted Citation: Desbruyères, D. G. and Coauthors, 2020 : importance of boundary processes for hotness uptake in the Subpolar North Atlantic. J. Geophys. Res. Ocean., doi:10.1029/2020JC016366 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2020JC016366 Other URLs:
Klos, Anna; Bogusz, Janusz; Bos, Machiel S.; Gruszczynska, Marta (2020). Modelling the GNSS Time Series: Different Approaches to Extract Seasonal Signals. Title: Modelling the GNSS Time Series : different Approaches to Extract Seasonal Signals Type: Book section Publication: Author(s): Klos, Anna ; Bogusz, Janusz ; Bos, Machiel S. ; Gruszczynska, Marta Year: 2020 Formatted Citation: Klos, A., J. Bogusz, M. S. Bos, and M. Gruszczynska, 2020 : Modelling the GNSS Time Series : different Approaches to Extract Seasonal Signals., 211-237, doi:10.1007/978-3-030-21718-1_7 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://link.springer.com/10.1007/978-3-030-21718-1_7 Other URLs:
Wang, Minyang; Xie, Shang-Ping; Shen, Samuel S. P.; Du, Yan (2020). Rossby and Yanai Modes of Tropical Instability Waves in the Equatorial Pacific Ocean and a Diagnostic Model for Surface Currents, Journal of Physical Oceanography, 10 (50), 3009-3024, 10.1175/JPO-D-20-0063.1. Title: Rossby and Yanai Modes of Tropical Instability Waves in the Equatorial Pacific Ocean and a diagnostic Model for Surface Currents Type: Journal article Publication: Journal of Physical Oceanography Author(s): Wang, Minyang ; Xie, Shang-Ping ; Shen, Samuel S. P. ; Du, Yan Year: 2020 Formatted Citation: Wang, M., S. Xie, S. S. P. Shen, and Y. Du, 2020 : Rossby and Yanai Modes of Tropical Instability Waves in the Equatorial Pacific Ocean and a diagnostic Model for Surface Currents. Journal of Physical Oceanography, 50 ( 10 ), 3009-3024, doi:10.1175/JPO-D-20-0063.1 Abstract: Mesoscale activities over the equatorial Pacific Ocean are dominated by the Rossby and Yanai modes of tropical instability waves ( TIWs ). The TIW-induced surface speed has not been accurately estimated in previous diagnostic models, particularly for the meridional component across the equator. This learn develops a diagnostic exemplar that retains the acceleration terms to estimate the TIW surface speed from the satellite-observed ocean surface acme. Validated against moor observations, the speed across the equator is accurately estimated for the first gear prison term, much improved from existing products. The results identify the Rossby- and Yanai-mode TIWs as the northwest-southeastward ( NW-SE ) speed oscillations north of the equator and the northeast-southwestward ( NE-SW ) speed oscillations on the equator, respectively. Barotropic instability is the dominant department of energy reservoir of the two TIW modes. The NE-SW speed oscillation of the Yanai mode is associated with the counterclockwise shear of the South Equatorial Current on the equator. The two TIW modes induce unlike ocean surface temperature patterns and vertical motions. Accurate estimates of TIW speed are important for studying equatorial ocean dynamics and climate unevenness in the tropical Pacific Ocean. Keywords: ECCO Products Used: ECCO2URL: https://journals.ametsoc.org/jpo/article/50/10/3009/354335/Rossby-and-Yanai-Modes-of-Tropical-Instability Other URLs:
Wu, Shuguang; Nie, Guigen; Meng, Xiaolin; Liu, Jingnan; He, Yuefan; Xue, Changhu; Li, Haiyang (2020). Comparative Analysis of the Effect of the Loading Series from GFZ and EOST on Long-Term GPS Height Time Series, Remote Sensing, 17 (12), 2822, 10.3390/rs12172822. Title: comparative analysis of the Effect of the Loading Series from GFZ and EOST on Long-Term GPS Height Time Series Type: Journal article Publication: Remote Sensing Author(s): Wu, Shuguang ; Nie, Guigen ; Meng, Xiaolin ; Liu, Jingnan ; He, Yuefan ; Xue, Changhu ; Li, Haiyang Year: 2020 Formatted Citation: Wu, S., G. Nie, X. Meng, J. Liu, Y. He, C. Xue, and H. Li, 2020 : comparative psychoanalysis of the Effect of the Loading Series from GFZ and EOST on Long-Term GPS Height Time Series. Remote Sensing, 12 ( 17 ), 2822, doi:10.3390/rs12172822 Abstract: In club to investigate the effect of unlike loading models on the nonlinear variations in Global Positioning System ( GPS ) height time series, the characteristics of annual signals ( amplitude and phase ) of GPS fourth dimension series, loading series from Deutsche GeoForschungsZentrum, Germany ( GFZ ) and School and Observatory of Earth Sciences, France ( EOST ) at 633 global GPS stations are processed and analyzed. The change characteristics of the root mean square ( RMS ) reduction rate, annual amplitude and phase of GPS meter serial after environmental loading corrections ( ELCs ) are then detected. Results show that ELCs have a positive effect on the reduction in the nonlinear deformation contained in most global positioning system stations around the world. RMS reduction rates are positive at 82.6 % stations after GFZ correction and 87.4 % after EOST correction, and the average reduction rates of all stations are 10.6 % and 15.4 %, respectively. As for the environmental loading serial from GFZ and EOST, their median annual amplitudes are 2.7 and 3.1 millimeter, which explains ~40 % annual amplitude of GPS height time series ( 7.2 millimeter ). far analysis of some specific stations indicates that the annual phase difference between GPS height time series and the environmental load series is an significant rationality that affects the reduction rates of the RMS and annual amplitude. The linear relationship between the annual phase remainder and the annual amplitude reduction rate is significant. The analogue fit results show that when there is no annual phase dispute between GPS and loading serial, the reduction rates of the RMS and annual amplitude will increase to the maximum of 15.6 % and 41.6 % for GFZ, and 22.0 % and 46.6 % for EOST. Keywords: ECCO Products Used: ECCO2URL: https://www.mdpi.com/2072-4292/12/17/2822 Other URLs:
Siegelman, Lia; Klein, Patrice; Rivière, Pascal; Thompson, Andrew F.; Torres, Hector S.; Flexas, Mar; Menemenlis, Dimitris (2020). Enhanced upward heat transport at deep submesoscale ocean fronts, Nature Geoscience, 1 (13), 50-55, 10.1038/s41561-019-0489-1. Title: Enhanced up heat transportation at deep submesoscale ocean fronts Type: Journal article Publication: Nature Geoscience Author(s): Siegelman, Lia ; Klein, Patrice ; Rivière, Pascal ; Thompson, Andrew F. ; Torres, Hector S. ; Flexas, Mar ; Menemenlis, Dimitris Year: 2020 Formatted Citation: Siegelman, L., P. Klein, P. Rivière, A. F. Thompson, H. S. Torres, M. Flexas, and D. Menemenlis, 2020 : Enhanced up heating system transport at deep submesoscale ocean fronts. nature Geoscience, 13 ( 1 ), 50-55, doi:10.1038/s41561-019-0489-1 Abstract: Keywords: ECCO Products Used: LLC_hiresURL: http://www.nature.com/articles/s41561-019-0489-1 Other URLs:
Wyatt, Alex S. J.; Leichter, James J.; Toth, Lauren T.; Miyajima, Toshihiro; Aronson, Richard B.; Nagata, Toshi (2020). Heat accumulation on coral reefs mitigated by internal waves, Nature Geoscience, 1 (13), 28-34, 10.1038/s41561-019-0486-4. Title: Heat accretion on coral reefs mitigated by home waves Type: Journal article Publication: Nature Geoscience Author(s): Wyatt, Alex S. J. ; Leichter, James J. ; Toth, Lauren T. ; Miyajima, Toshihiro ; Aronson, Richard B. ; Nagata, Toshi Year: 2020 Formatted Citation: Wyatt, A. S. J., J. J. Leichter, L. T. Toth, T. Miyajima, R. B. Aronson, and T. Nagata, 2020 : Heat accumulation on coral reefs mitigated by internal waves. nature Geoscience, 13 ( 1 ), 28-34, doi:10.1038/s41561-019-0486-4 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: http://www.nature.com/articles/s41561-019-0486-4 Other URLs:
Byrne, B.; Liu, J.; Lee, M.; Baker, I.; Bowman, K. W.; Deutscher, N. M.; Feist, D. G.; Griffith, D. W. T.; Iraci, L. T.; Kiel, M.; Kimball, J. S.; Miller, C. E.; Morino, I.; Parazoo, N. C.; Petri, C.; Roehl, C. M.; Sha, M. K.; Strong, K.; Velazco, V. A.; Wennberg, P. O.; Wunch, D. (2020). Improved Constraints on Northern Extratropical CO 2 Fluxes Obtained by Combining Surface-Based and Space-Based Atmospheric CO 2 Measurements, Journal of Geophysical Research: Atmospheres, 15 (125), 10.1029/2019JD032029. Title: Improved Constraints on Northern Extratropical CO 2 Fluxes Obtained by Combining Surface-Based and Space-Based Atmospheric CO 2 Measurements Type: Journal article Publication: Journal of Geophysical Research : Atmospheres Author(s): Byrne, B. ; Liu, J. ; Lee, M. ; Baker, I. ; Bowman, K. W. ; Deutscher, N. M. ; Feist, D. G. ; Griffith, D. W. T. ; Iraci, L. T. ; Kiel, M. ; Kimball, J. S. ; Miller, C. E. ; Morino, I. ; Parazoo, N. C. ; Petri, C. ; Roehl, C. M. ; Sha, M. K. ; Strong, K. ; Velazco, V. A. ; Wennberg, P. O. ; Wunch, D. Year: 2020 Formatted Citation: Byrne, B. and Coauthors, 2020 : Improved Constraints on Northern Extratropical CO 2 Fluxes Obtained by Combining Surface-Based and Space-Based Atmospheric CO 2 Measurements. Journal of Geophysical Research : Atmospheres, 125 ( 15 ), doi:10.1029/2019JD032029 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2019JD032029 Other URLs:
Butler, Martha P.; Lauvaux, Thomas; Feng, Sha; Liu, Junjie; Bowman, Kevin W.; Davis, Kenneth J. (2020). Atmospheric Simulations of Total Column CO2 Mole Fractions from Global to Mesoscale within the Carbon Monitoring System Flux Inversion Framework, Atmosphere, 8 (11), 787, 10.3390/atmos11080787. Title: Atmospheric Simulations of Total Column CO2 Mole Fractions from Global to Mesoscale within the Carbon Monitoring System Flux Inversion Framework Type: Journal article Publication: Atmosphere Author(s): Butler, Martha P. ; Lauvaux, Thomas ; Feng, Sha ; Liu, Junjie ; Bowman, Kevin W. ; Davis, Kenneth J. Year: 2020 Formatted Citation: Butler, M. P., T. Lauvaux, S. Feng, J. Liu, K. W. Bowman, and K. J. Davis, 2020 : atmospheric Simulations of entire Column CO2 Mole Fractions from Global to Mesoscale within the Carbon Monitoring System Flux Inversion Framework. Atmosphere, 11 ( 8 ), 787, doi:10.3390/atmos11080787 Abstract: Quantifying the doubt of inversion-derived CO2 coat fluxes and attributing the uncertainty to errors in either flux or atmospheric transport simulations continue to be challenges in the word picture of come on sources and sinks of carbon dioxide ( CO2 ). Despite recent studies inferring fluxes while using higher-resolution modeling systems, the utility of regional-scale models remains indecipherable when compared to existing coarse-resolution global systems. here, we present an off-line yoke of the mesoscale Weather Research and Forecasting ( WRF ) model to optimized biogenic CO2 fluxes and breakwater fractions from the global Carbon Monitoring System inversion system ( CMS-Flux ). The coupling model consists of methods to constrain the bulk of CO2 introduced into WRF, effectively nesting our regional domain covering most of North America ( except the northerly half of Canada ) within the CMS global model. We test the yoke by simulating Greenhouse gases Observing SATellite ( GOSAT ) column-averaged dry-air mole fractions ( XCO2 ) over North America for 2010. We find think of model-model differences in summer of ∼0.12 ppm, significantly lower than the original coupling scheme ( from 0.5 to 1.5 ppm, depending on the boundary ). While 85 % of the XCO2 values are ascribable to long-range transportation from outside our north american world, most of the model-model differences appear to be due to transport differences in the fraction of the troposphere below 850 hPa. Satellite data from GOSAT and column and aircraft data are used to show that upright transport above the Planetary Boundary Layer is creditworthy for significant model-model differences in the horizontal distribution of column XCO2 across North America. Keywords: ECCO Products Used: ECCO2URL: https://www.mdpi.com/2073-4433/11/8/787 Other URLs:
Androsov, Alexey; Boebel, Olaf; Schröter, Jens; Danilov, Sergey; Macrander, Andreas; Ivanciu, Ioana (2020). Ocean Bottom Pressure Variability: Can It Be Reliably Modeled?, Journal of Geophysical Research: Oceans, 3 (125), 10.1029/2019JC015469. Title: Ocean Bottom Pressure Variability : Can It Be faithfully Modeled ? Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Androsov, Alexey ; Boebel, Olaf ; Schröter, Jens ; Danilov, Sergey ; Macrander, Andreas ; Ivanciu, Ioana Year: 2020 Formatted Citation: Androsov, A., O. Boebel, J. Schröter, S. Danilov, A. Macrander, and I. Ivanciu, 2020 : Ocean Bottom Pressure Variability : Can It Be faithfully Modeled ? J. Geophys. Res. Ocean., 125 ( 3 ), doi:10.1029/2019JC015469 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2019JC015469 Other URLs:
Buongiorno Nardelli, Bruno (2020). A multi-year time series of observation-based 3D horizontal and vertical quasi-geostrophic global ocean currents, Earth System Science Data, 3 (12), 1711-1723, 10.5194/essd-12-1711-2020. Title: A multi-year time series of observation-based 3D horizontal and vertical quasi-geostrophic global ocean currents Type: Journal article Publication: Earth System Science Data Author(s): Buongiorno Nardelli, Bruno Year: 2020 Formatted Citation: Buongiorno Nardelli, B., 2020 : A multi-year clock series of observation-based 3D horizontal and vertical quasi-geostrophic ball-shaped ocean currents. ground System Science Data, 12 ( 3 ), 1711-1723, doi:10.5194/essd-12-1711-2020 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://essd.copernicus.org/articles/12/1711/2020/ Other URLs:
Anandh, T. S; Das, Bijan Kumar; Kuttippurath, J.; Chakraborty, Arun (2020). A Comparative Analysis of the Bay of Bengal Ocean State Using Standalone and Coupled Numerical Models, Asia-Pacific Journal of Atmospheric Sciences, 10.1007/s13143-020-00197-z. Title: A Comparative Analysis of the Bay of Bengal Ocean State Using Standalone and Coupled Numerical Models Type: Journal article Publication: Asia-Pacific Journal of Atmospheric Sciences Author(s): Anandh, T. S ; Das, Bijan Kumar ; Kuttippurath, J. ; Chakraborty, Arun Year: 2020 Formatted Citation: Anandh, T. S., B. K. Das, J. Kuttippurath, and A. Chakraborty, 2020 : A comparative analysis of the Bay of Bengal Ocean State Using Standalone and Coupled Numerical Models. Asia-Pacific Journal of Atmospheric Sciences, doi:10.1007/s13143-020-00197-z Abstract: Keywords: ECCO Products Used: ECCO2URL: http://link.springer.com/10.1007/s13143-020-00197-z Other URLs:
Shi, Hongkai; He, Xiufeng; Wu, Yihao; Huang, Jia (2020). The parameterization of mean dynamic topography based on the Lagrange basis functions, Advances in Space Research, 10.1016/j.asr.2020.07.042. Title: The parameterization of mean moral force topography based on the Lagrange basis functions Type: Journal article Publication: Advances in Space Research Author(s): Shi, Hongkai ; He, Xiufeng ; Wu, Yihao ; Huang, Jia Year: 2020 Formatted Citation: Shi, H., X. He, Y. Wu, and J. Huang, 2020 : The parameterization of mean active topography based on the Lagrange footing functions. Advances in Space Research, doi:10.1016/j.asr.2020.07.042 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://linkinghub.elsevier.com/retrieve/pii/S0273117720305512 Other URLs:
Han, Lei; Huang, Rui Xin (2020). Using the Helmholtz Decomposition to Define the Indian Ocean Meridional Overturning Streamfunction, Journal of Physical Oceanography, 3 (50), 679-694, 10.1175/JPO-D-19-0218.1. Title: Using the Helmholtz Decomposition to Define the indian Ocean Meridional Overturning Streamfunction Type: Journal article Publication: Journal of Physical Oceanography Author(s): Han, Lei ; Huang, Rui Xin Year: 2020 Formatted Citation: Han, L., and R. X. Huang, 2020 : Using the Helmholtz Decomposition to Define the amerind Ocean Meridional Overturning Streamfunction. Journal of Physical Oceanography, 50 ( 3 ), 679-694, doi:10.1175/JPO-D-19-0218.1 Abstract: The zonally integrate hang in a basin can be separated into the divergent/nondivergent parts, and a uniquely define meridional overturning circulation ( MOC ) can be calculated. For a basin with significant book switch over at zonal open boundaries, this method acting is competent in removing the components associated with the nonzero source terms due to zonal transports at open boundaries. This method was applied to the zonally integrated flow in the indian Ocean basin extended all the way to the Antarctic by merit of the ECCO dataset. The contributions due to two major zonal flow systems at exposed boundaries, the indonesian Throughflow ( ITF ) and the Antarctic Circumpolar Current ( ACC ), were well separated from the rotational flow component, and a nondivergent overturning circulation model was identified. Comparisons with previous studies on the MOC of the amerind Ocean in different seasons showed overall consistency but with refinements in details to the confederacy of the entry of the ITF, reflecting the influence of ITF on the MOC model in the domain. other options of decomposition are besides examined. Keywords: ECCO Products Used: ECCO-V4URL: http://journals.ametsoc.org/doi/10.1175/JPO-D-19-0218.1 Other URLs:
Team, The IMBIE (2020). Mass balance of the Greenland Ice Sheet from 1992 to 2018, Nature, 7798 (579), 233-239, 10.1038/s41586-019-1855-2. Title: Mass balance of the Greenland Ice Sheet from 1992 to 2018 Type: Journal article Publication: nature Author(s): team, The IMBIE Year: 2020 Formatted Citation: team, T. I., 2020 : Mass balance of the Greenland Ice Sheet from 1992 to 2018. nature, 579 ( 7798 ), 233-239, doi:10.1038/s41586-019-1855-2 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://www.nature.com/articles/s41586-019-1855-2 Other URLs:
Wunsch, Carl (2020). Is the Ocean Speeding Up? Ocean Surface Energy Trends, Journal of Physical Oceanography, 11 (50), 3205-3217, 10.1175/JPO-D-20-0082.1. Title: Is the Ocean Speeding Up ? Ocean Surface Energy Trends Type: Journal article Publication: Journal of Physical Oceanography Author(s): Wunsch, Carl Year: 2020 Formatted Citation: Wunsch, C., 2020 : Is the Ocean Speeding Up ? Ocean Surface Energy Trends. Journal of Physical Oceanography, 50 ( 11 ), 3205-3217, doi:10.1175/JPO-D-20-0082.1 Abstract: A late newspaper by Hu et aluminum. ( hypertext transfer protocol : //doi.org/10.1126/sciadv.aax7727 ) has raised the interesting interrogate of whether the ocean circulation has been “ speeding up ” in the last decades. Their consequence contrasts with some estimates of the miss of major trends in oceanic surface graveness waves and wind try. In general, both the increased department of energy and entail power inputs of the calculate circulation match to a humble divide of the very noisy setting values. An exemplar is the incriminate office increase of about 3 × 108 W, as compared to wind department of energy inputs of order 1012 W. hera the problem is reexamined using a state of matter calculate that has the merit of being energy, mass, etc. conserve. Because it is an estimate over an entire recent 26-yr interval, it is less sensitive to the strong changes in experimental data density and distribution, and it does not rely upon nonconservative “ reanalyses. ” The focus is on the energy lie in the surface layers of the ocean. A potential energy increase is found, but it is about wholly unavailable-arising from the increase in mean ocean flat. A weak increase in kinetic energy in the circus tent layer ( 10 thousand ) is confirmed, corresponding to an addition of order 1 curium s−1 yr−1 over 26 years. An estimate of kinetic energy in the full urine column shows no monotonic tendency, but the changes in the match available potential department of energy are not calculated here. Keywords: ECCO Products Used: ECCO-V4URL: https://journals.ametsoc.org/jpo/article/50/11/3205/354627/Is-the-Ocean-Speeding-Up-Ocean-Surface-Energy Other URLs:
Wang, Yingying; Luo, Yiyong (2020). Variability of spice injection in the upper ocean of the southeastern Pacific during 1992-2016, Climate Dynamics, 5-6 (54), 3185-3200, 10.1007/s00382-020-05164-y. Title: Variability of spiciness injection in the upper ocean of the southeastern Pacific during 1992-2016 Type: Journal article Publication: Climate Dynamics Author(s): Wang, Yingying ; Luo, Yiyong Year: 2020 Formatted Citation: Wang, Y., and Y. Luo, 2020 : variability of spiciness injection in the upper ocean of the southeastern Pacific during 1992-2016. Climate Dynamics, 54 ( 5-6 ), 3185-3200, doi:10.1007/s00382-020-05164-y Abstract: Keywords: ECCO Products Used: ECCO2URL: http://link.springer.com/10.1007/s00382-020-05164-y Other URLs:
Xing, Qinwang; Yu, Huaming; Yu, Haiqing; Sun, Peng; Liu, Yang; Ye, Zhenjiang; Li, Jianchao; Tian, Yongjun (2020). A comprehensive model-based index for identification of larval retention areas: A case study for Japanese anchovy Engraulis japonicus in the Yellow Sea, Ecological Indicators (116), 106479, 10.1016/j.ecolind.2020.106479. Title: A comprehensive examination model-based index for identification of larval retentiveness areas : A sheath analyze for japanese anchovy Engraulis japonicus in the Yellow Sea Type: Journal article Publication: Ecological Indicators Author(s): Xing, Qinwang ; Yu, Huaming ; Yu, Haiqing ; Sun, Peng ; Liu, Yang ; Ye, Zhenjiang ; Li, Jianchao ; Tian, Yongjun Year: 2020 Formatted Citation: Xing, Q., H. Yu, H. Yu, P. Sun, Y. Liu, Z. Ye, J. Li, and Y. Tian, 2020 : A comprehensive model-based index for identification of larval memory areas : A case sketch for japanese anchovy Engraulis japonicus in the Yellow Sea. ecological Indicators, 116, 106479, doi:10.1016/j.ecolind.2020.106479 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://linkinghub.elsevier.com/retrieve/pii/S1470160X20304167 Other URLs:
Johns, Elizabeth M.; Lumpkin, Rick; Putman, Nathan F.; Smith, Ryan H.; Muller-Karger, Frank E.; T. Rueda-Roa, Digna; Hu, Chuanmin; Wang, Mengqiu; Brooks, Maureen T.; Gramer, Lewis J.; Werner, Francisco E. (2020). The establishment of a pelagic Sargassum population in the tropical Atlantic: Biological consequences of a basin-scale long distance dispersal event, Progress in Oceanography (182), 102269, 10.1016/j.pocean.2020.102269. Title: The establishment of a oceanic Sargassum population in the tropical Atlantic : biological consequences of a basin-scale hanker distance dispersion event Type: Journal article Publication: Progress in Oceanography Author(s): Johns, Elizabeth M. ; Lumpkin, Rick ; Putman, Nathan F. ; Smith, Ryan H. ; Muller-Karger, Frank E. ; T. Rueda-Roa, Digna ; Hu, Chuanmin ; Wang, Mengqiu ; Brooks, Maureen T. ; Gramer, Lewis J. ; Werner, Francisco E. Year: 2020 Formatted Citation: Johns, E. M. and Coauthors, 2020 : The establishment of a oceanic Sargassum population in the tropical Atlantic : biological consequences of a basin-scale long distance dispersion event. advance in Oceanography, 182, 102269, doi:10.1016/j.pocean.2020.102269 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://linkinghub.elsevier.com/retrieve/pii/S0079661120300070 Other URLs:
Loose, N.; Heimbach, P.; Pillar, H. R.; Nisancioglu, K. H. (2020). Quantifying Dynamical Proxy Potential through Shared Adjustment Physics in the North Atlantic, Journal of Geophysical Research: Oceans (e2020JC016), 10.1029/2020JC016112. Title: Quantifying Dynamical Proxy Potential through Shared Adjustment Physics in the North Atlantic Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Loose, N. ; Heimbach, P. ; Pillar, H. R. ; Nisancioglu, K. H. Year: 2020 Formatted Citation: Loose, N., P. Heimbach, H. R. Pillar, and K. H. Nisancioglu, 2020 : Quantifying Dynamical Proxy Potential through Shared Adjustment Physics in the North Atlantic. J. Geophys. Res. Ocean., e2020JC016, doi:10.1029/2020JC016112 Abstract: Oceanic quantities of concern ( QoIs ), for example, ocean heating system message or transports, are much inaccessible to direct observation, ascribable to the high cost of musical instrument deployment and logistic challenges. consequently, oceanographers seek proxies for undersampled or unobserved QoIs. Conventionally, proxy potential is assessed via statistical correlations, which measure covariability without establishing causality. This newspaper introduces an alternate method : quantifying dynamic proxy potential. Using an adjoint model, this method unambiguously identifies the physical origins of covariability. A North Atlantic case study illustrates our method within the ECCO ( Estimating the Circulation and Climate of the Ocean ) state appraisal model. We find that wind coerce along the eastern and northerly boundaries of the Atlantic drives a basin-wide answer in North Atlantic circulation and temperature. due to these large-scale teleconnections, a single subsurface temperature observation in the Irminger Sea informs heat enchant across the remote control Iceland-Scotland ridge ( ISR ), with a dynamic proxy electric potential of 19 %. Dynamical proxy potential allows two equivalent interpretations : Irminger Sea subsurface temperature ( one ) shares 19 % of its adaptation physics with ISR hotness transmit ; ( two ) reduces the doubt in ISR heating system transport by 19 % ( independent of the measured temperature value ), if the Irminger Sea observation is added without randomness to the ECCO state estimate. With its two interpretations, dynamic proxy likely is simultaneously rooted in ( one ) ocean dynamics and ( two ) doubt quantification and optimum respect system design, the latter being an emerging outgrowth in computational science. The new method acting may therefore foster dynamics-based, quantitative ocean observing system design in the coming years. Keywords: Adjoint mannequin, North Atlantic, Observing System Design, Proxy, Teleconnection, Uncertainty Quantification ECCO Products Used: ECCO-V4 ; adjointURL: https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2020JC016112 Other URLs: hypertext transfer protocol : //onlinelibrary.wiley.com/doi/abs/10.1029/2020JC016112
Rigby, S.J.; Williams, R.G.; Achterberg, E.P.; Tagliabue, A. (2020). Resource Availability and Entrainment Are Driven by Offsets Between Nutriclines and Winter Mixed-Layer Depth, Global Biogeochemical Cycles, 7 (34), 10.1029/2019GB006497. Title: Resource Availability and Entrainment Are Driven by Offsets Between Nutriclines and Winter Mixed-Layer Depth Type: Journal article Publication: Global Biogeochemical Cycles Author(s): Rigby, S.J. ; Williams, R.G. ; Achterberg, E.P. ; Tagliabue, A. Year: 2020 Formatted Citation: Rigby, S.J., R.G. Williams, E.P. Achterberg, and A. Tagliabue, 2020 : Resource Availability and Entrainment Are Driven by Offsets Between Nutriclines and Winter Mixed-Layer Depth. Global Biogeochemical Cycles, 34 ( 7 ), doi:10.1029/2019GB006497 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/10.1029/2019GB006497 Other URLs:
Buongiorno Nardelli, Bruno (2020). A multi-year time series of observation-based 3D horizontal and vertical quasi-geostrophic global ocean currents, Earth System Science Data, 3 (12), 1711-1723, 10.5194/essd-12-1711-2020. Title: A multi-year clock time series of observation-based 3D horizontal and vertical quasi-geostrophic global ocean currents Type: Journal article Publication: Earth System Science Data Author(s): Buongiorno Nardelli, Bruno Year: 2020 Formatted Citation: Buongiorno Nardelli, B., 2020 : A multi-year time series of observation-based 3D horizontal and vertical quasi-geostrophic ball-shaped ocean currents. worldly concern System Science Data, 12 ( 3 ), 1711-1723, doi:10.5194/essd-12-1711-2020 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://essd.copernicus.org/articles/12/1711/2020/ Other URLs:
Condron, Alan; Joyce, Anthony J.; Bradley, Raymond S. (2020). Arctic sea ice export as a driver of deglacial climate, Geology, 4 (48), 395-399, 10.1130/G47016.1. Title: Arctic sea ice export as a driver of deglacial climate Type: Journal article Publication: Geology Author(s): Condron, Alan ; Joyce, Anthony J. ; Bradley, Raymond S. Year: 2020 Formatted Citation: Condron, A., A.J. Joyce, and R.S. Bradley, 2020 : Arctic sea ice export as a driver of deglacial climate. Geology, 48 ( 4 ), 395-399, doi:10.1130/G47016.1 Abstract: A far-flung theory in paleoclimatology suggests that changes in fresh water discharge to the Nordic ( Greenland, Norwegian, and Icelandic ) Seas from ice sheets and proglacial lakes over North America played a function in triggering episodes of abrupt climate change during deglaciation ( 21-8 ka ) by slowing the military capability of the Atlantic Meridional Overturning circulation ( AMOC ). Yet, proving this link has been debatable, as climate models are ineffective to produce centennial-to-millennial-length reductions in overturning from ephemeral outburst floods, while periods of iceberg release during Heinrich Event 1 ( ca. 16 ka ) may have occurred after the climate had already begun to cool. here, results from a series of numeral model experiments are presented to show that prior to deglaciation, sea methamphetamine could have become tens of meters thick over large parts of the Arctic Basin, forming an enormous reservoir of fresh water mugwump from mundane sources. Our model then shows that deglacial low-lying rise, changes in atmospheric circulation, and sublunar outburst floods caused this ice to be exported through Fram Strait, where its subsequent thaw freshened the Nordic Seas enough to weaken the AMOC. Given that both the volume of ice stored in the Arctic Basin and the magnitude of the simulate export events exceed estimates of the volumes and fluxes of meltwater sporadically discharged from proglacial Lake Agassiz, our results show that non-terrestrial fresh water sources played an significant function in causing past abrupt climate exchange. Keywords: ECCO Products Used: ECCO2URL: https://pubs.geoscienceworld.org/gsa/geology/article/48/4/395/580899/Arctic-sea-ice-export-as-a-driver-of-deglacial Other URLs:
Juranek, Lauren W.; White, Angelicque E.; Dugenne, Mathilde; Henderikx Freitas, Fernanda; Dutkiewicz, Stephanie; Ribalet, Francois; Ferrón, Sara; Armbrust, E. Virginia; Karl, David M. (2020). The Importance of the Phytoplankton “Middle Class” to Ocean Net Community Production, Global Biogeochemical Cycles, 12 (34), 10.1029/2020GB006702. Title: The Importance of the Phytoplankton “ Middle Class ” to Ocean Net Community Production Type: Journal article Publication: Global Biogeochemical Cycles Author(s): Juranek, Lauren W. ; White, Angelicque E. ; Dugenne, Mathilde ; Henderikx Freitas, Fernanda ; Dutkiewicz, Stephanie ; Ribalet, Francois ; Ferrón, Sara ; Armbrust, E. Virginia ; Karl, David M. Year: 2020 Formatted Citation: Juranek, L.W., A.E. White, M. Dugenne, F. Henderikx Freitas, S. Dutkiewicz, F. Ribalet, S. Ferrón, E.V. Armbrust, and D.M. Karl, 2020 : The Importance of the Phytoplankton “ Middle Class ” to Ocean Net Community Production. Global Biogeochemical Cycles, 34 ( 12 ), doi:10.1029/2020GB006702 Abstract: Keywords: ECCO Products Used: ECCO-V3URL: https://onlinelibrary.wiley.com/doi/10.1029/2020GB006702 Other URLs:
Dutkiewicz, Stephanie; Cermeno, Pedro; Jahn, Oliver; Follows, Michael J.; Hickman, Anna E.; Taniguchi, Darcy A. A.; Ward, Ben A. (2020). Dimensions of marine phytoplankton diversity, Biogeosciences, 3 (17), 609-634, 10.5194/bg-17-609-2020. Title: Dimensions of marine phytoplankton diverseness Type: Journal article Publication: Biogeosciences Author(s): Dutkiewicz, Stephanie ; Cermeno, Pedro ; Jahn, Oliver ; Follows, Michael J. ; Hickman, Anna E. ; Taniguchi, Darcy A. A. ; Ward, Ben A. Year: 2020 Formatted Citation: Dutkiewicz, S., P. Cermeno, O. Jahn, M.J. Follows, A.E. Hickman, D.A.A. Taniguchi, and B.A. Ward, 2020 : Dimensions of marine phytoplankton diversity. Biogeosciences, 17 ( 3 ), 609-634, doi:10.5194/bg-17-609-2020 Abstract: Keywords: ECCO Products Used: ECCO-V3URL: https://bg.copernicus.org/articles/17/609/2020/ Other URLs:
Shan, Xuan; Jing, Zhao; Sun, Bingrong; Wu, Lixin (2020). Impacts of ocean current-atmosphere interactions on mesoscale eddy energetics in the Kuroshio extension region, Geoscience Letters, 1 (7), 3, 10.1186/s40562-020-00152-w. Title: Impacts of ocean current-atmosphere interactions on mesoscale eddy energetics in the Kuroshio elongation region Type: Journal article Publication: Geoscience Letters Author(s): Shan, Xuan ; Jing, Zhao ; Sun, Bingrong ; Wu, Lixin Year: 2020 Formatted Citation: Shan, X., Z. Jing, B. Sun, and L. Wu, 2020 : Impacts of ocean current-atmosphere interactions on mesoscale eddy energetics in the Kuroshio extension area. Geoscience Letters, 7 ( 1 ), 3, doi:10.1186/s40562-020-00152-w Abstract: Keywords: ECCO Products Used: ECCO2URL: https://geoscienceletters.springeropen.com/articles/10.1186/s40562-020-00152-w Other URLs:
Wineteer, Alexander; Torres, Hector S.; Rodriguez, Ernesto (2020). On the Surface Current Measurement Capabilities of Spaceborne Doppler Scatterometry, Geophysical Research Letters, 21 (47), 10.1029/2020GL090116. Title: On the Surface Current Measurement Capabilities of Spaceborne Doppler Scatterometry Type: Journal article Publication: Geophysical Research Letters Author(s): Wineteer, Alexander ; Torres, Hector S. ; Rodriguez, Ernesto Year: 2020 Formatted Citation: Wineteer, A., H.S. Torres, and E. Rodriguez, 2020 : On the Surface Current Measurement Capabilities of Spaceborne Doppler Scatterometry. Geophysical Research Letters, 47 ( 21 ), doi:10.1029/2020GL090116 Abstract: Keywords: ECCO Products Used: LLC_hiresURL: https://onlinelibrary.wiley.com/doi/10.1029/2020GL090116 Other URLs:
Nagai, T.; Hibiya, T. (2020). Combined Effects of Tidal Mixing in Narrow Straits and the Ekman Transport on the Sea Surface Temperature Cooling in the Southern Indonesian Seas, Journal of Geophysical Research: Oceans, 11 (125), 10.1029/2020JC016314. Title: Combined Effects of Tidal Mixing in Narrow Straits and the Ekman Transport on the Sea Surface Temperature Cooling in the Southern Indonesian Seas Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Nagai, T. ; Hibiya, T. Year: 2020 Formatted Citation: Nagai, T. and T. Hibiya, 2020 : Combined Effects of Tidal Mixing in Narrow Straits and the Ekman Transport on the Sea Surface Temperature Cooling in the Southern Indonesian Seas. Journal of Geophysical Research : Oceans, 125 ( 11 ), doi:10.1029/2020JC016314 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://onlinelibrary.wiley.com/doi/10.1029/2020JC016314 Other URLs:
Petäjä, Tuukka; Duplissy, Ella-Maria; Tabakova, Ksenia; Schmale, Julia; Altstädter, Barbara; Ancellet, Gerard; Arshinov, Mikhail; Balin, Yurii; Baltensperger, Urs; Bange, Jens; Beamish, Alison; Belan, Boris; Berchet, Antoine; Bossi, Rossana; Cairns, Warren R. L.; Ebinghaus, Ralf; El Haddad, Imad; Ferreira-Araujo, Beatriz; Franck, Anna; Huang, Lin; Hyvärinen, Antti; Humbert, Angelika; Kalogridis, Athina-Cerise; Konstantinov, Pavel; Lampert, Astrid; MacLeod, Matthew; Magand, Olivier; Mahura, Alexander; Marelle, Louis; Masloboev, Vladimir; Moisseev, Dmitri; Moschos, Vaios; Neckel, Niklas; Onishi, Tatsuo; Osterwalder, Stefan; Ovaska, Aino; Paasonen, Pauli; Panchenko, Mikhail; Pankratov, Fidel; Pernov, Jakob B.; Platis, Andreas; Popovicheva, Olga; Raut, Jean-Christophe; Riandet, Aurélie; Sachs, Torsten; Salvatori, Rosamaria; Salzano, Roberto; Schröder, Ludwig; Schön, Martin; Shevchenko, Vladimir; Skov, Henrik; Sonke, Jeroen E.; Spolaor, Andrea; Stathopoulos, Vasileios K.; Strahlendorff, Mikko; Thomas, Jennie L.; Vitale, Vito; Vratolis, Sterios; Barbante, Carlo; Chabrillat, Sabine; Dommergue, Aurélien; Eleftheriadis, Konstantinos; Heilimo, Jyri; Law, Kathy S.; Massling, Andreas; Noe, Steffen M.; Paris, Jean-Daniel; Prévôt, André S. H.; Riipinen, Ilona; Wehner, Birgit; Xie, Zhiyong; Lappalainen, Hanna K. (2020). Overview: Integrative and Comprehensive Understanding on Polar Environments (iCUPE)-concept and initial results, Atmospheric Chemistry and Physics, 14 (20), 8551-8592, 10.5194/acp-20-8551-2020. Title: Overview : consolidative and comprehensive examination understanding on polar Environments ( iCUPE ) -concept and initial results Type: Journal article Publication: Atmospheric Chemistry and Physics Author(s): Petäjä, Tuukka ; Duplissy, Ella-Maria ; Tabakova, Ksenia ; Schmale, Julia ; Altstädter, Barbara ; Ancellet, Gerard ; Arshinov, Mikhail ; Balin, Yurii ; Baltensperger, Urs ; Bange, Jens ; Beamish, Alison ; Belan, Boris ; Berchet, Antoine ; Bossi, Rossana ; Cairns, Warren R. L. ; Ebinghaus, Ralf ; El Haddad, Imad ; Ferreira-Araujo, Beatriz ; Franck, Anna ; Huang, Lin ; Hyvärinen, Antti ; Humbert, Angelika ; Kalogridis, Athina-Cerise ; Konstantinov, Pavel ; Lampert, Astrid ; MacLeod, Matthew ; Magand, Olivier ; Mahura, Alexander ; Marelle, Louis ; Masloboev, Vladimir ; Moisseev, Dmitri ; Moschos, Vaios ; Neckel, Niklas ; Onishi, Tatsuo ; Osterwalder, Stefan ; Ovaska, Aino ; Paasonen, Pauli ; Panchenko, Mikhail ; Pankratov, Fidel ; Pernov, Jakob B. ; Platis, Andreas ; Popovicheva, Olga ; Raut, Jean-Christophe ; Riandet, Aurélie ; Sachs, Torsten ; Salvatori, Rosamaria ; Salzano, Roberto ; Schröder, Ludwig ; Schön, Martin ; Shevchenko, Vladimir ; Skov, Henrik ; Sonke, Jeroen E. ; Spolaor, Andrea ; Stathopoulos, Vasileios K. ; Strahlendorff, Mikko ; Thomas, Jennie L. ; Vitale, Vito ; Vratolis, Sterios ; Barbante, Carlo ; Chabrillat, Sabine ; Dommergue, Aurélien ; Eleftheriadis, Konstantinos ; Heilimo, Jyri ; Law, Kathy S. ; Massling, Andreas ; Noe, Steffen M. ; Paris, Jean-Daniel ; Prévôt, André S. H. ; Riipinen, Ilona ; Wehner, Birgit ; Xie, Zhiyong ; Lappalainen, Hanna K. Year: 2020 Formatted Citation: Petäjä, Tuukka, E-M. Duplissy, K. Tabakova, J. Schmale, B. Altstädter, G. Ancellet, M. Arshinov, Y. Balin, U. Baltensperger, J. Bange, A. Beamish, B. Belan, A. Berchet, R. Bossi, W. R.L. Cairns, R. Ebinghaus, I. El Haddad, B. Ferreira-Araujo, A. Franck, L. Huang, A. Hyvärinen, A. Humbert, A-C. Kalogridis, P. Konstantinov, A. Lampert, M. MacLeod, O. Magand, A. Mahura, L. Marelle, V. Masloboev, D. Moisseev, V. Moschos, N. Neckel, T. Onishi, S. Osterwalder, A. Ovaska, P. Paasonen, M. Panchenko, F. Pankratov, J.B. Pernov, A. Platis, O. Popovicheva, J-C. Raut, A. Riandet, T. Sachs, R. Salvatori, R. Salzano, L. Schröder, M. Schön, V. Shevchenko, H. Skov, J.E. Sonke, A. Spolaor, V.K. Stathopoulos, M. Strahlendorff, J.L. Thomas, V. Vitale, S. Vratolis, C. Barbante, S. Chabrillat, A. Dommergue, K. Eleftheriadis, J. Heilimo, K.S. Law, A. Massling, S.M. Noe, J-D. Paris, A.S.H. Prévôt, I. Riipinen, B. Wehner, Z. Xie, and H.K. Lappalainen, 2020 : overview : consolidative and comprehensive understand on polar Environments ( iCUPE ) -concept and initial results. atmospheric chemistry and Physics, 20 ( 14 ), 8551-8592, doi:10.5194/acp-20-8551-2020 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://acp.copernicus.org/articles/20/8551/2020/ Other URLs:
Zemskova, Varvara E.; White, Brian L.; Scotti, Alberto (2020). Energetics of a Rotating Wind-forced Horizontal Convection Model of a Reentrant Channel, Journal of Physical Oceanography, 10.1175/JPO-D-19-0169.1. Title: Energetics of a Rotating Wind-forced Horizontal Convection Model of a Reentrant Channel Type: Journal article Publication: Journal of Physical Oceanography Author(s): Zemskova, Varvara E. ; White, Brian L. ; Scotti, Alberto Year: 2020 Formatted Citation: Zemskova, V.E., B.L. White, and A. Scotti, 2020 : Energetics of a Rotating Wind-forced Horizontal Convection Model of a Reentrant Channel. Journal of Physical Oceanography, doi:10.1175/JPO-D-19-0169.1 Abstract: We portray numeric results for an idealized rotate, buoyancy- and windforced channel as a elementary model for the Southern Ocean branch of the Meridional Overturning Circulation ( MOC ). differential airiness force is applied along the top horizontal surface, with surface cooling at one end ( to represent the pole ) and airfoil warming at the other ( to represent the equatorial area ) and a zonally re-entrant transmit to represent the Antarctic Circumpolar Current ( ACC ). Zonally-uniform surface hoist impel is applied with a alike practice to the westerlies and easterlies with varying magnitude relative to the irrepressibility forcing. The trouble is solved numerically using a 3D DNS model based on a finite-volume problem solver for the Boussinesq Navier-Stokes equations with rotation. The overall dynamics, including large-scale overthrow, baroclinic eddy, churning mix, and resulting energy cascades are studied by calculating terms in the energy budget using the local Available Potential Energy framework. The basic physics of the overturn in the southerly Ocean are investigated at multiple scales and the output signal from the fully-resolved DNS simulations is compared with the results from previous studies of the ball-shaped ( ECCO2 ) and southerly Ocean eddy-permitting state of matter estimates. We find that both the order of magnitude and supreme headquarters allied powers europe of the zonal wind instrument stress profile are crucial to the spatial practice of the overturning circulation. however, the available likely energy budget and the diapycnal mix are not importantly affected by the come on wreathe stress and are chiefly set by the buoyancy forcing at the open. Keywords: ECCO Products Used: ECCO2URL: https://journals.ametsoc.org/view/journals/phoc/aop/JPO-D-19-0169.1/JPO-D-19-0169.1.xml Other URLs:
Leconte, Jade; Benites, L. Felipe; Vannier, Thomas; Wincker, Patrick; Piganeau, Gwenael; Jaillon, Olivier (2020). Genome Resolved Biogeography, Genes, 1 (11), 66, 10.3390/genes11010066. Title: Genome Resolved Biogeography Type: Journal article Publication: Genes Author(s): Leconte, Jade ; Benites, L. Felipe ; Vannier, Thomas ; Wincker, Patrick ; Piganeau, Gwenael ; Jaillon, Olivier Year: 2020 Formatted Citation: Leconte, J., L.F. Benites, T. Vannier, P. Wincker, G. Piganeau, O. Jaillon, 2020 : Genome Resolved Biogeography. Genes, 11 ( 1 ), 66, doi:10.3390/genes11010066 Abstract: Among marine phytoplankton, Mamiellales encompass several species from the genus Micromonas, Ostreococcus and Bathycoccus, which are important contributors to primary production. previous studies based on one gene markers described their wide geographic distribution but led to discussion because of the spotty taxonomic resolution of the method. here, we leverage genome sequences for six Mamiellales species, two from each genus Micromonas, Ostreococcus and Bathycoccus, to investigate their distribution across 133 stations sampled during the Tara Oceans expedition. Our study confirms the cosmopolitan distribution of Mamiellales and far suggests non-random distribution of species, with two triplets of co-occurring genomes associated with different temperatures : Ostreococcus lucimarinus, Bathycoccus prasinos and Micromonas pusilla were found in cold waters, whereas Ostreococcus spp. RCC809, Bathycoccus spp. TOSAG39-1 and Micromonas commoda were more abundant in ardent conditions. We besides report the distribution of the two candidate mating-types of Ostreococcus for which the frequency of intimate reproduction was previously assumed to be very low. indeed, both mating types were systematically detected together in agreement with either frequent sexual reproduction or the high prevalence of a diploid stagecoach. wholly, these analyses provide novel insights into Mamiellales ’ biogeography and raise novel testable hypotheses about their life sentence bicycle and ecology. Keywords: ECCO Products Used: ECCO-V3URL: https://www.mdpi.com/2073-4425/11/1/66 Other URLs:
Huneke, Wilma Gertrud Charlotte (2019). Modelling the dynamics of the Antarctic Slope Front, University of Tasmania. Title: Modelling the dynamics of the Antarctic Slope Front Type: dissertation Publication: University of Tasmania Author(s): Huneke, Wilma Gertrud Charlotte Year: 2019 Formatted Citation: Huneke, W.G.C., 2019 : Modelling the dynamics of the Antarctic Slope Front, University of Tasmania Abstract: This thesis investigates the dynamics of the Antarctic Slope Front ( ASF ), which controls heat change across the Antarctic continental gradient. The motivation comes from the indigence to advance the understand of oceanic heat supply to the Antarctic ice ledge cavities which impacts the stability of the Antarctic Ice Sheet. To address this question, the ocean dynamics at the Antarctic continental ledge dampen system is explored using the Regional Ocean Modeling System ( ROMS ) which has been adapted for ocean/ice ledge interactions. The ASF is examined in two different model configurations, in an idealize distribution channel knowledge domain and in a realistic circumpolar domain, with a focus on the sensitivity to surface forcing to understand how the ASF may change in a future climate. first, an idealized model configuration of the Antarctic continental shelf violate system in a zonally-symmetric periodic sphere is developed. An intrinsic unevenness of the ASF that is driven by a deep bottom blend level is discussed in the shell of a relatively fresh continental ledge. second, the function of surface airiness forcing and fart for the lastingness and supreme headquarters allied powers europe of the ASF is investigated by analysing sensitivity experiments using the idealize domain. Different frontal regimes and their thresholds are determined on the basis of the relative proportion between buoyancy forcing to mechanical wedge. third, disruption experiments with artificially increased basal fresh-water are performed in a naturalistic circumpolar knowledge domain. This workplace is motivated by the visualize addition in fresh water supply to the ocean due to basal melting in a affectionate climate. The answer to the extra fresh water in the perturb simulations is overall non-local. Findings between the idealize and realistic model agree in that the transportation along the Antarctic continental gradient increases for fresher continental shelves. Keywords: ECCO Products Used: ECCO2URL: https://eprints.utas.edu.au/33607/1/Huneke_whole_thesis_ex_pub_mat.pdf Other URLs:
Chatterjee, Abhisek; Kumar, B. Praveen; Prakash, Satya; Singh, Prerna (2019). Annihilation of the Somali upwelling system during summer monsoon, Scientific Reports, 1 (9), 7598, 10.1038/s41598-019-44099-1. Title: Annihilation of the Somali upwelling organization during summer monsoon Type: Journal article Publication: Scientific Reports Author(s): Chatterjee, Abhisek ; Kumar, B. Praveen ; Prakash, Satya ; Singh, Prerna Year: 2019 Formatted Citation: Chatterjee, A., B.P. Kumar ; S. Prakash, and P. Singh, 2019 : annihilation of the Somali upwelling organization during summer monsoon, Scientific Reports, 9 ( 1 ), 7598, department of the interior : 10.1038/s41598-019-44099-1 Abstract: Somali upwelling system during northerly summer is believed to be the largest upwelling region in the indian Ocean and has motivated some of the early studies on the indian Ocean. here we present results from observations and ocean model to show that the upwelling along the Somali coast is limited to the early phase of the summer monsoon and former primarily limited to the eddy dominated flows in the northern and some extent in the southerly region of the seashore. major separate of the Somali seashore ( ~60 % of the entire coastal length ) shows big downwelling features driven by offshore negative windstress curl and subsurface entrainment mix. farther, we show that the surface cooling of coastal waters are dominantly driven by subsurface entrainment and surface heat fluxes. These findings not only augment the existing cognition of the Somali upwelling system, but besides have serious implications on the regional climate. Most importantly, our psychoanalysis underscores the use of alongshore winds only to project future ( climate driven ) changes in the upwelling intensity along this coast. Keywords: ECCO Products Used: ECCO2URL: https://www.nature.com/articles/s41598-019-44099-1 Other URLs:
Xiang, Yunfei; Yue, Jianping; Cong, Kanglin; Xing, Yin; Cai, Dongjian (2019). Characterizing the Seasonal Hydrological Loading Over the Asian Continent Using GPS, GRACE, and Hydrological Model, Pure and Applied Geophysics, 11 (176), 5051-5068, 10.1007/s00024-019-02251-y. Title: Characterizing the Seasonal Hydrological Loading Over the asian Continent Using GPS, GRACE, and Hydrological Model Type: Journal article Publication: Pure and Applied Geophysics Author(s): Xiang, Yunfei ; Yue, Jianping ; Cong, Kanglin ; Xing, Yin ; Cai, Dongjian Year: 2019 Formatted Citation: Xiang, Y., J. Yue, K. Cong, Y. Xing, and D. Cai, 2019 : Characterizing the Seasonal Hydrological Loading Over the asian Continent Using GPS, GRACE, and Hydrological Model, Pure and Applied Geophysics, 176 ( 11 ), 5051-5068, department of the interior : 10.1007/s00024-019-02251-y Abstract: Based on combine data of the Global Positioning System ( GPS ), Global Land Data Assimilation System ( GLDAS ), and Gravity Recovery and Climate Experiment ( GRACE ), the seasonal hydrological loading over the asian continent is characterized in this study. The hydrological load effects over the asian continent display strong latitude dependence. The meaning hydrological loading effects appear at the GPS stations situated in the coastal areas, some regions near large rivers and lakes, and high-latitude areas in Russia, as evidenced by the fact that a large root mean square ( RMS ) and high percentage of the division related to the annual signal modeled by singular spectrum analysis ( SSA ) for each measurement are cumulated at the stations located in these regions. In contrast, the hydrological load effects are not pronounced in mid-latitude areas of the asian celibate ( for example, Central Asia, northern and tableland regions of China ), which is ascribable to the high topographical variability and scarce water resources in these regions. then, the cross ripple transform ( XWT ) is used to quantify the consistency between different data sets. For the data sets of GPS/GLDAS, the XWT-based illusion for 64 % of the stations reaches above 0.8, while it reaches above 0.8 for 48 % for the data sets of GPS/GRACE, indicating that the data sets of GPS/GLDAS present better consistency. In summation, we besides discuss the effects of hydrological load on GPS observations from the RMS value, noise characteristic, and speed doubt. After applying the hydrological load correction, the RMS values of about all GPS observations are reduced with different amplitudes, implying that the hydrological cargo correction can reduce the RMS values of most GPS observations in the asian continent. interim, the variations of noise and speed uncertainty suggest that hydrological loading has changed the noise characteristic of about all GPS observations, and thus head to the overestimate of speed doubt. Keywords: ECCO Products Used: ECCO2URL: https://link.springer.com/article/10.1007%2Fs00024-019-02251-y Other URLs:
Pham, Anh L.D.; Ito, Takamitsu (2019). Ligand Binding Strength Explains the Distribution of Iron in the North Atlantic Ocean, Geophysical Research Letters, 13 (46), 7500-7508, 10.1029/2019GL083319. Title: Ligand Binding Strength Explains the Distribution of Iron in the North Atlantic Ocean Type: Journal article Publication: Geophysical Research Letters Author(s): Pham, Anh L.D. ; Ito, Takamitsu Year: 2019 Formatted Citation: Pham, A.L.D. and T. Ito, 2019, Ligand Binding Strength Explains the Distribution of Iron in the North Atlantic Ocean, Geophysical Research Letters, 46 ( 13 ), 7500-7508, department of the interior : 10.1029/2019GL083319 Abstract: Observations of dissolved iron ( dFe ) in the subtropical North Atlantic revealed remarkable features : While the near-surface dFe concentration is first gear despite receiving high dust deposition, the subsurface dFe concentration is high. We test respective hypotheses that might explain this feature in an ocean biogeochemistry model with a refine Fe cycle scheme. These hypotheses invoke a stronger lithogenic scavenge rate, rapid biological consumption, and a weaker bind between Fe and a omnipresent, refractory ligand. While the standard model overestimates the open dFe assiduity, a 10-time stronger biological consumption hunt causes a little reduction in the model coat dFe. A tenfold decrease in the tie force of the fractious ligand, suggested by late observations, starts reproducing the observe dFe convention, with a potential shock for the ball-shaped nutrient distribution. An extreme respect for the lithogenic scavenge rate can besides match the model dFe with observations, but this process is distillery ailing constrained. Keywords: ECCO Products Used: ECCO-V3URL: https://onlinelibrary.wiley.com/doi/10.1029/2019GL083319 Other URLs:
Nissimov, Jozef I.; Talmy, David; Haramaty, Liti; Fredricks, Helen F.; Zelzion, Ehud; Knowles, Ben; Eren, A. Murat; Vandzura, Rebecca; Laber, Christien P.; Schieler, Brittany M.; Johns, Christopher T.; More, Kuldeep D.; Coolen, Marco J. L.; Follows, Michael J.; Bhattacharya, Debashish; Van Mooy, Benjamin A. S.; Bidle, Kay D. (2019). Biochemical diversity of glycosphingolipid biosynthesis as a driver of Coccolithovirus competitive ecology, Environmental Microbiology, 6 (21), 2182-2197, 10.1111/1462-2920.14633. Title: Biochemical diverseness of glycosphingolipid biosynthesis as a driver of Coccolithovirus competitive ecology Type: Journal article Publication: Environmental Microbiology Author(s): Nissimov, Jozef I. ; Talmy, David ; Haramaty, Liti ; Fredricks, Helen F. ; Zelzion, Ehud ; Knowles, Ben ; Eren, A. Murat ; Vandzura, Rebecca ; Laber, Christien P. ; Schieler, Brittany M. ; Johns, Christopher T. ; More, Kuldeep D. ; Coolen, Marco J. L. ; Follows, Michael J. ; Bhattacharya, Debashish ; Van Mooy, Benjamin A. S. ; Bidle, Kay D. Year: 2019 Formatted Citation: Nissimov, J.I., D. Talmy, L. Haramaty, H.F. Fredricks, E. Zelzion, B. Knowles, A.M. Eren, R. Vandzura, C.P. Laber, B.M. Schieler, C.T. Johns, K.D. More, M.J.L. Coolen, M.J. Follows, D. Bhattacharya, B.A.S.Van Mooy, and K.D. Bidle, 2019 : biochemical diversity of glycosphingolipid biosynthesis as a driver of Coccolithovirus competitive ecology, Environmental Microbiology, 21 ( 6 ), 2182-2197, department of the interior : 10.1111/1462-2920.14633 Abstract: Coccolithoviruses ( EhVs ) are large, double-stranded DNA-containing viruses that infect the single-celled, marine coccolithophore Emiliania huxleyi. Given the cosmopolitan nature and global importance of E. huxleyi as a bloom-forming, calcify, photoautotroph, E. huxleyi-EhV interactions play a key function in oceanic carbon biogeochemistry. Virally-encoded glycosphingolipids ( vGSLs ) are virulence factors that are produced by the activeness of virus-encoded serine palmitoyltransferase ( SPT ). here, we characterize the dynamics, diversity and catalytic production of vGSLs in an align of EhV strains in relation to their SPT sequence composition and explore the guess that they are a deciding of infectivity and host demise. vGSL output and diverseness was positively correlated with increased virulence, virus echo pace and lytic infection dynamics in testing ground experiments, but they do not explain the achiever of less-virulent EhVs in natural EhV communities. The majority of EhV-derived SPT amplicon sequences associated with infect cells in the North Atlantic derived from slower infect, less acerb EhVs. Our lab-, field- and mathematical model-based data and simulations support ecological scenarios whereby slow-infecting, less-virulent EhVs successfully compete in North Atlantic populations of E. huxleyi, through either the discriminatory removal of fast-infecting, virulent EhVs during active infection or by having access to a broader host range. Keywords: ECCO Products Used: ECCO-V3URL: https://onlinelibrary.wiley.com/doi/10.1111/1462-2920.14633 Other URLs:
Zhang, Xianming; Lohmann, Rainer; Sunderland, Elsie M. (2019). Poly- and Perfluoroalkyl Substances in Seawater and Plankton from the Northwestern Atlantic Margin, Environmental Science & Technology, 21 (53), 12348-12356, 10.1021/acs.est.9b03230. Title: Poly- and Perfluoroalkyl Substances in Seawater and Plankton from the Northwestern Atlantic Margin Type: Journal article Publication: Environmental Science & Technology Author(s): Zhang, Xianming ; Lohmann, Rainer ; Sunderland, Elsie M. Year: 2019 Formatted Citation: Zhang, X. ; R. Lohmann, and E.M. Sunderland, 2019 : Poly- and Perfluoroalkyl Substances in Seawater and Plankton from the Northwestern Atlantic Margin, Environmental Science & Technology, 53 ( 21 ), 12348-12356, department of the interior : 10.1021/acs.est.9b03230 Abstract: The ocean is thought to be the terminal bury for poly- and perfluoroalkyl substances ( PFAS ) that have been produced and released in large quantities for more than 60 years. regulative actions have curbed production of bequest compounds such as perfluorooctane sulfonate ( PFOS ) and perfluorooctanoic acid ( PFOA ), but impacts of regulations on PFAS releases to the marine environment are ailing understand. here, we report new data for 21 target PFAS in seawater and plankton from the coast, shelf, and gradient of the Northwestern Atlantic Ocean. We find potent inverse correlations between brininess and concentrations of most PFAS, indicating that ongoing continental discharges are the major source to the marine environment. For bequest PFAS such as PFOS and PFOA, a comparison of inland and offshore measurements from the lapp year ( 2014 ) suggests that there are ongoing releases to the marine environment from sources such as submarine groundwater discharges. erect transportation of most PFAS associated with settling particles from the surface ( 10 thousand ) to deeper waters is minor compared to advective transportation except for perfluorodecanoic acidic ( PFDA ; 35 % of erect flow ) and precursor compounds to PFOS ( up to 86 % ). We find higher than expected bioaccumulation factors ( BAFs = Cplankton/Cwater ) for perfluorinated carboxyl acids ( PFCAs ) with five and six carbons ( log BAF = 2.9-3.4 ) and linear PFOS ( log BAF = 2.6-4.3 ) in marine plankton compared to PFCAs with 7–11 carbons. We postulate that this reflects extra contributions from harbinger compounds. Known precursor compounds detected here have among the highest BAFs ( logarithm BAF > 3.0 ) for all PFAS in this study, suggesting that extra research on the bioaccumulation electric potential of nameless organofluorine compounds is urgently needed. Keywords: ECCO Products Used: ECCO-V3URL: https://pubs.acs.org/doi/10.1021/acs.est.9b03230 Other URLs:
Levang, Samuel J. (2019). The Response of Ocean Salinity Patterns to ClimateChange: Implications for Circulation, Massachusetts Institute of Technology. Title: The Response of Ocean Salinity Patterns to ClimateChange : Implications for circulation Type: dissertation Publication: Massachusetts Institute of Technology Author(s): Levang, Samuel J. Year: 2019 Formatted Citation: Levang, S.J., 2019 : The Response of Ocean Salinity Patterns to ClimateChange : Implications for Circulation, Massachusetts Institute of Technology Abstract: Global model of ocean brininess originate from the change of fresh water between the ocean surface and the atmosphere. For a quasi-steady state system, these surface fluxes are balanced by compensating transports of strategic arms limitation talks in the ocean inside. In a warming climate, the air holds extra urine vaporization which acts to intensify the ball-shaped urine cycle. Amplified fresh water fluxes are then absorbed at the surface and propagate along ocean circulation pathways. here, we use match model results from the CMIP5 experiment to identify coherent responses in the atmospheric water hertz and in ocean salt patterns. Some aspects of the reply are coherent across models, while other regions show big inter-model ranch. In particular, the brininess answer in the North Atlantic subpolar coil, where the think of salt plays a role in maintaining high surface concentration for deep-water formation, has first gear confidence in CMIP5 models. To understand how differences in ocean circulation may affect this response, we use two techniques to diagnose the character of salt transports in the contemporary climate. The first gear is a salt budget within the surface mix layer, which identifies major enchant processes. The moment is a Lagrangian particle tracking instrument, used to understand the regional connectivity of water masses. From this analysis, we find that anomalous fresh water signals become good mix within the ocean gyres, but can be isolated on larger scales. The subpolar Atlantic brininess reply generally shows freshening at the open, but is sensible to the transport of anomalously piquant water from the subtropics, a largely eddy-driven process. As CMIP5 models use a range of eddy parameterizations, this is probably a source of uncertainty in the brininess response. finally, we investigate the effect of brininess changes on the bass revoke cells and other circulations, and find a complex charm that besides depends on the details of advective pathways. In a warm scenario, water cycle amplification actually works to strengthen the Atlantic meridional overturning circulation due to the influence of enhance subtropical vaporization. Keywords: ECCO Products Used: ECCO-V4URL: https://dspace.mit.edu/handle/1721.1/122329 Other URLs:
Arumí Planas, Cristina (2019). ECCO: a new approach to estimate the time variability of the Meridional Overturning Circulation in the South Atlantic at 30°C, IU de Oceanografía y Cambio Global. Title: ECCO : a new approach to estimate the time unevenness of the Meridional Overturning Circulation in the South Atlantic at 30°C Type: thesis Publication: IU de Oceanografía y Cambio Global Author(s): Arumí Planas, Cristina Year: 2019 Formatted Citation: Arumí Planas, C., 2019 : ECCO : a new approach to estimate the clock variability of the Meridional Overturning Circulation in the South Atlantic at 30°C, IU de Oceanografía y Cambio Global Abstract: Time series of mass tape drive for the upper, deep and abysmal layers in the Atlantic Ocean at 30°S have been estimated using data obtained from the ECCOv4r3, a model developed by the Jet Propulsion Laboratory under a sign with the NASA. These estimations have been compared with analogous data obtained from the GO-SHIP hydrographic transoceanic sections at 30oS from 1993, 2003 and 2011. Results read that the ECCOv4r3 solution for the upper layers ( γ # < 27.58 kg/m3 ) is not significantly different from the mass transports estimated by the hydrographic data. This is not the case, however, for the deep and abysmal layers ( γ # > 27.58 kg/m3 ), where noticeable differences are found. The ECCOv4r3 points out that the Brazil Current shows a seasonal unevenness with higher mass enchant from August to March ( -15.8±0.7 Sv ) than from April to July ( -13.3±0.4 Sv ). Furthermore, the ECCOv4r3 indicates that the Benguela Current shows a seasonal unevenness with higher mass transport from June to November ( 13.8±0.3 Sv ) than from December to May ( 13.1±0.2 Sv ). The comparison of heat transportation and fresh water flux estimated with ECCOv4r3 to those obtained from hydrographic data show no significant differences. however, the fresh water blend estimated by hydrographic data suggest that it has been decreasing during the study period, while the same estimate with ECCOv4r3 data do not show any decrease. The overturning stream-function estimated with ECCOv4r3 is not significantly different than the AMOC estimated by hydrographic data for the thermocline and average layers. The ECCOv4r3 reveals that the AMOC shows a seasonal variability with stronger mass transport from April to September ( 16.6±0.9 Sv ) than from October to March ( 14.5±0.2 Sv ). Keywords: ECCO Products Used: ECCO-V4URL: https://accedacris.ulpgc.es/handle/10553/73577 Other URLs:
Viglione, Giuliana Augusta (2019). Dynamics of Southern Ocean Mixed Layers, Caltech, 10.7907/CYRK-SB71. Title: Dynamics of Southern Ocean Mixed Layers Type: thesis Publication: Caltech Author(s): Viglione, Giuliana Augusta Year: 2019 Formatted Citation: Viglione, G.A., 2019 : Dynamics of Southern Ocean Mixed Layers, Caltech Abstract: While it is frequently conceptualized in a spatially and/or temporally average smell, the mix layer depth of the global ocean exhibits significant unevenness in both space and fourth dimension. The shuffle layer plays a key character in controlling the exchange of heat and gases between the atmosphere and the ocean interior ; an inaccurate portrait of blend layer depths can be a major generator of error in ball-shaped climate models. In particular, the Southern Ocean, or the waters around Antarctica, take up a significant parcel of anthropogenically released carbon dioxide and subduct it into the deep ocean, affecting global climate on both relatively brusque and frigid timescales. unevenness in the assorted layer besides affects the formation and subduction of mode waters, the partition of waters between the upper and lower overturning cells, and biological productivity. The stratification of the blend layer is significantly modified by submesoscale dynamics, which are not resolved in current state-of-the-art climate models. The parameterization of these dynamics represents a large source of uncertainty, and better observations and a better sympathize of the submesoscale can be used to improve climate predictions. In this employment, the unevenness of Southern Ocean shuffle layers is examined using both numeric and experimental methods. General circulation model output is combined with a childlike advection system to examine upwelling pathways, desegregate level residence times, and air-sea equilibrium in the southern Ocean. Virtual Lagrangian drifters are released around the basin and tracked as they outcrop into the assorted layer, where they can exchange properties with the atmosphere. These studies are combined with high-resolution observations of mesoscale and submesoscale dynamics in the Southern Ocean, which play a run order role in setting the stratification of the blend layer. Seaglider data are used to construct potential vorticity fields, which are used to identify possible instances of different submesoscale instabilities in Drake Passage. Seasonal and zonal mixed layer unevenness are besides examined using these observations. A second sic of Seaglider observations are used to diagnose changes in ventilation and eddy stirring on sub-seasonal timescales at the Polar Front, one of the major fronts of the Southern Ocean. This thesis aims to expand current cognition of shuffle layer dynamics, particularly at the submesoscale, and examine their implications for ball-shaped circulation and climate. Keywords: ECCO Products Used: LLC_hiresURL: https://thesis.library.caltech.edu/11736/ Other URLs:
Nastula, Jolanta; Wińska, Małgorzata; Śliwińska, Justyna; Salstein, David (2019). Hydrological signals in polar motion excitation – Evidence after fifteen years of the GRACE mission, Journal of Geodynamics (124), 119-132, 10.1016/j.jog.2019.01.014. Title: Hydrological signals in pivotal motion excitement – evidence after fifteen years of the GRACE mission Type: Journal article Publication: Journal of Geodynamics Author(s): Nastula, Jolanta ; Wińska, Małgorzata ; Śliwińska, Justyna ; Salstein, David Year: 2019 Formatted Citation: Nastula, J., M. Wińska, J. Śliwińska, and D. Salstein, 2019 : Hydrological signals in diametric motion excitement – attest after fifteen years of the GRACE mission. Journal of Geodynamics, 124, 119-132, doi:10.1016/j.jog.2019.01.014 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: https://linkinghub.elsevier.com/retrieve/pii/S0264370718301558 Other URLs:
Guan, Cong; Hu, Shijian; McPhaden, Michael J.; Wang, Fan; Gao, Shan; Hou, Yinglin (2019). Dipole Structure of Mixed Layer Salinity in Response to El Niño-La Niña Asymmetry in the Tropical Pacific, Geophysical Research Letters, 21 (46), 12165-12172, 10.1029/2019GL084817. Title: Dipole structure of Mixed Layer Salinity in Response to El Niño-La Niña Asymmetry in the Tropical Pacific Type: Journal article Publication: Geophysical Research Letters Author(s): Guan, Cong ; Hu, Shijian ; McPhaden, Michael J. ; Wang, Fan ; Gao, Shan ; Hou, Yinglin Year: 2019 Formatted Citation: Guan, C., S. Hu, M. J. McPhaden, F. Wang, S. Gao, and Y. Hou, 2019 : dipole structure of Mixed Layer Salinity in Response to El Niño-La Niña Asymmetry in the Tropical Pacific. Geophys. Res. Lett., 46 ( 21 ), 12165-12172, doi:10.1029/2019GL084817 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: https://onlinelibrary.wiley.com/doi/10.1029/2019GL084817 Other URLs:
Xi, Hui; Zhang, Zizhan; Lu, Yang (2019). A Quasi-Decadal Oscillation of Sea-Level Variation in the South China Sea, Journal of Coastal Research, 2 (36), 228, 10.2112/JCOASTRES-D-19-00078.1. Title: A Quasi-Decadal oscillation of Sea-Level Variation in the South China Sea Type: Journal article Publication: Journal of Coastal Research Author(s): Xi, Hui ; Zhang, Zizhan ; Lu, Yang Year: 2019 Formatted Citation: Xi, H., Z. Zhang, and Y. Lu, 2019 : A Quasi-Decadal oscillation of Sea-Level Variation in the South China Sea. Journal of Coastal Research, 36 ( 2 ), 228, doi:10.2112/JCOASTRES-D-19-00078.1 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: https://bioone.org/journals/journal-of-coastal-research/volume-36/issue-2/JCOASTRES-D-19-00078.1/A-Quasi-Decadal-Oscillation-of-Sea-Level-Variation-in-the/10.2112/JCOASTRES-D-19-00078.1.full Other URLs:
Chang, Le; Tang, He; Yi, Shuang; Sun, Wenke (2019). The Trend and Seasonal Change of Sediment in the East China Sea Detected by GRACE, Geophysical Research Letters, 3 (46), 1250-1258, 10.1029/2018GL081652. Title: The Trend and Seasonal Change of Sediment in the East China Sea Detected by GRACE Type: Journal article Publication: Geophysical Research Letters Author(s): Chang, Le ; Tang, He ; Yi, Shuang ; Sun, Wenke Year: 2019 Formatted Citation: Chang, L., H. Tang, S. Yi, and W. Sun, 2019 : The Trend and Seasonal Change of Sediment in the East China Sea Detected by GRACE. Geophys. Res. Lett., 46 ( 3 ), 1250-1258, doi:10.1029/2018GL081652 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2018GL081652 Other URLs:
Xi, Hui; Zhang, Zizhan; Lu, Yang; Li, Yan (2019). Mass sea level variation in the South China Sea from GRACE, altimetry and model and the connection with ENSO, Advances in Space Research, 1 (64), 117-128, 10.1016/j.asr.2019.03.027. Title: Mass sea tied variation in the South China Sea from GRACE, altimetry and model and the joining with ENSO Type: Journal article Publication: Advances in Space Research Author(s): Xi, Hui ; Zhang, Zizhan ; Lu, Yang ; Li, Yan Year: 2019 Formatted Citation: Xi, H., Z. Zhang, Y. Lu, and Y. Li, 2019 : Mass sea degree variation in the South China Sea from GRACE, altimetry and model and the association with ENSO. Advances in Space Research, 64 ( 1 ), 117-128, doi:10.1016/j.asr.2019.03.027 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: https://linkinghub.elsevier.com/retrieve/pii/S027311771930208X Other URLs:
Xu, Xinyu; Ding, Hao; Zhao, Yongqi; Li, Jin; Hu, Minzhang (2019). GOCE-Derived Coseismic Gravity Gradient Changes Caused by the 2011 Tohoku-Oki Earthquake, Remote Sensing, 11 (11), 1295, 10.3390/rs11111295. Title: GOCE-Derived Coseismic Gravity Gradient Changes Caused by the 2011 Tohoku-Oki earthquake Type: Journal article Publication: Remote Sensing Author(s): Xu, Xinyu ; Ding, Hao ; Zhao, Yongqi ; Li, Jin ; Hu, Minzhang Year: 2019 Formatted Citation: Xu, X., H. Ding, Y. Zhao, J. Li, and M. Hu, 2019 : GOCE-Derived Coseismic Gravity Gradient Changes Caused by the 2011 Tohoku-Oki Earthquake. Remote Sensing, 11 ( 11 ), 1295, doi:10.3390/rs11111295 Abstract: In contrast to most of the coseismic gravity change studies, which are by and large based on data from the Gravity playing field Recovery and Climate Experiment ( GRACE ) satellite mission, we use observations from the Gravity field and steady-state Ocean Circulation Explorer ( GOCE ) Satellite Gravity Gradient ( SGG ) mission to estimate the coseismic graveness and graveness gradient changes caused by the 2011 Tohoku-Oki Mw 9.0 earthquake. We first construct two ball-shaped gravity field models up to degree and ordering 220, before and after the earthquake, based on the least-squares method acting, with a bandpass Auto Regression Moving Average ( ARMA ) filter applied to the SGG data along the eye socket. In addition, to reduce the influences of biased noise in the SGG data and the polar opening problem on the recover model, we propose a tailor ball-shaped consonant ( TSH ) approach, which entirely uses the spherical harmonic ( SH ) coefficients with the degree range 30-95 to compute the coseismic graveness changes in the spatial sphere. then, both the results from the GOCE observations and the GRACE temporal gravity field models ( with the like TSH degrees and orders ) are simultaneously compared with the forward-modeled signals that are estimated based on the demerit slip model of the earthquake event. Although there are considerable misfits between GOCE-derived and modeled gravity gradient changes ( ΔVxx, ΔVyy, ΔVzz, and ΔVxz ), we find analogous spatial patterns and a meaning change ( greater than 3σ ) in gravity gradients before and after the earthquake. furthermore, we estimate the radial gravity gradient changes from the GOCE-derived monthly time-variable gravity field models before and after the earthquake, whose amplitudes are at a level over three times that of their correspond uncertainties, and are therefore significant. additionally, the results show that the recover coseismic gravity signals in the west-to-east steering from GOCE are closer to the modeled signals than those from GRACE in the TSH degree range 30-95. This indicates that the GOCE-derived gravity models might be used as extra observations to infer/explain some time-variable geophysical signals of sake. Keywords: ECCO Products Used: ECCO-KFSURL: https://www.mdpi.com/2072-4292/11/11/1295 Other URLs:
Freilich, Mara A.; Mahadevan, Amala (2019). Decomposition of Vertical Velocity for Nutrient Transport in the Upper Ocean, Journal of Physical Oceanography, 6 (49), 1561-1575, 10.1175/JPO-D-19-0002.1. Title: Decomposition of Vertical Velocity for Nutrient Transport in the Upper Ocean Type: Journal article Publication: Journal of Physical Oceanography Author(s): Freilich, Mara A. ; Mahadevan, Amala Year: 2019 Formatted Citation: Freilich, M. A., and A. Mahadevan, 2019 : decomposition of Vertical Velocity for Nutrient Transport in the Upper Ocean. Journal of Physical Oceanography, 49 ( 6 ), 1561-1575, doi:10.1175/JPO-D-19-0002.1 Abstract: Within the pycnocline, where diapycnal mix is suppressed, both the vertical movement ( uplift ) of isopycnal surfaces and up motion along sloping isopycnals supply nutrients to the euphotic layer, but the relative importance of each of these mechanisms is nameless. We present a method for decomposing vertical speed w into two components in a Lagrangian frame : vertical speed along sloping isopycnal surfaces wiso and the adiabatic vertical speed of isopycnal surfaces wuplift. We show that wisow, where M2/N2 is the isopycnal slope and H/L is the geometric aspect proportion of the flow, and that wiso accounts for 10 % -25 % of the entire erect speed tungsten for isopycnal slopes congressman of the midlatitude pycnocline. We perform the decomposition of west in a process report model of a midlatitude eddying run field generated with a range of isopycnal slopes. A spectral decomposition of the speed components shows that while wupliftis the largest contributor to erect speed, wiso is of comparable order of magnitude at horizontal scales less than about 10 km, that is, at submesoscales. Increasing the horizontal grid resoluteness of models is known to increase erect speed ; this increase is disproportionately due to better resolution of wiso, as is shown here by comparing 1- and 4-km resolution exemplary runs. Along-isopycnal vertical transport can be an authoritative contributor to the upright liquefy of tracers, including oxygen, nutrients, and chlorophyll, although we find fallible covariance between vertical speed and food anomaly in our model. Keywords: ECCO Products Used: LLC_hiresURL: https://journals.ametsoc.org/view/journals/phoc/49/6/jpo-d-19-0002.1.xml Other URLs:
Torres, H. S.; Klein, P.; Siegelman, L.; Qiu, B.; Chen, S.; Ubelmann, C.; Wang, J.; Menemenlis, D.; Fu, L.-L. (2019). Diagnosing Ocean-Wave-Turbulence Interactions From Space, Geophysical Research Letters, 15 (46), 8933-8942, 10.1029/2019GL083675. Title: Diagnosing Ocean-Wave-Turbulence Interactions From Space Type: Journal article Publication: Geophysical Research Letters Author(s): Torres, H. S. ; Klein, P. ; Siegelman, L. ; Qiu, B. ; Chen, S. ; Ubelmann, C. ; Wang, J. ; Menemenlis, D. ; Fu, L.-L. Year: 2019 Formatted Citation: Torres, H. S. and Coauthors, 2019 : Diagnosing Ocean-Wave-Turbulence Interactions From Space. Geophys. Res. Lett., 46 ( 15 ), 8933-8942, doi:10.1029/2019GL083675 Abstract: Keywords: ECCO Products Used: LLC_hiresURL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2019GL083675 Other URLs:
Yurganov, Leonid; Muller-Karger, Frank; Leifer, Ira (2019). Methane increase over the Barents and Kara seas after the autumn pycnocline breakdown: satellite observations, Advances in Polar Science, 4 (30), 382-390, 10.13679/j.advps.2019.0024. Title: Methane addition over the Barents and Kara seas after the fall pycnocline breakdown : satellite observations Type: Journal article Publication: Advances in Polar skill Author(s): Yurganov, Leonid ; Muller-Karger, Frank ; Leifer, Ira Year: 2019 Formatted Citation: Yurganov, L., F. Muller-Karger, and I. Leifer, 2019 : Methane addition over the Barents and Kara seas after the fall pycnocline breakdown : satellite observations. Advances in Polar Science, 30 ( 4 ), 382-390, doi:10.13679/j.advps.2019.0024 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://www.aps-polar.org/paper/2019/30/04/A191205000007 Other URLs:
Quinn, K J; Ponte, R M; Heimbach, P; Fukumori, I; Campin, Jean-Michel (2019). Ocean angular momentum from a recent global state estimate, with assessment of uncertainties, Geophysical Journal International, 1 (216), 584-597. Title: Ocean angular momentum from a late ball-shaped express estimate, with appraisal of uncertainties Type: Journal article Publication: Geophysical Journal International Author(s): Quinn, K J ; Ponte, R M ; Heimbach, P ; Fukumori, I ; Campin, Jean-Michel Year: 2019 Formatted Citation: Quinn, K. J., R. M. Ponte, P. Heimbach, I. Fukumori, and J. Campin, 2019 : Ocean angular momentum from a late global state calculate, with appraisal of uncertainties. Geophysical Journal International, 216 ( 1 ), 584-597, hypertext transfer protocol : //dx.doi.org/10.1093/gji/ggy452 Abstract: Earth rotation studies require accurate cognition of the global oceanic speed and mass fields, for proper account of ocean angular momentum ( OAM ) effects on the global budget. We analyse a modern OAM series ( 1992-2015 ) based on the solution of a global general circulation model constrained to most existing ocean data. The impact of the data-constrained optimization on OAM is substantial, and particularly necessity for calculating effects of ball-shaped entail ocean batch changes, which can be authoritative for determining annual cycles and long term trends in OAM. The contributions of ocean internal-combustion engine to OAM variations, besides estimated, are found to be negligible. Uncertainties in OAM series are assessed by comparison with other available estimates. Results indicate low signal-to-noise ratio ratios for all the analyze OAM series. Comparisons with geodetic, atmospheric and hydrologic data, in the context of the planetal angular momentum budget, point to the continued need for improvements in some or all of the series. possible paths are offered for producing better OAM estimates in the future. Keywords: ECCO Products Used: ECCO-V4URL: http://dx.doi.org/10.1093/gji/ggy452 Other URLs:
Johnson, Helen L.; Cessi, Paola; Marshall, David P.; Schloesser, Fabian; Spall, Michael A. (2019). Recent Contributions of Theory to Our Understanding of the Atlantic Meridional Overturning Circulation, Journal of Geophysical Research: Oceans, 8 (124), 5376-5399, 10.1029/2019JC015330. Title: Recent Contributions of Theory to Our sympathy of the Atlantic Meridional Overturning Circulation Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Johnson, Helen L. ; Cessi, Paola ; Marshall, David P. ; Schloesser, Fabian ; Spall, Michael A. Year: 2019 Formatted Citation: Johnson, H. L., P. Cessi, D. P. Marshall, F. Schloesser, and M. A. Spall, 2019 : late Contributions of hypothesis to Our sympathy of the Atlantic Meridional Overturning Circulation. J. Geophys. Res. Ocean., 124 ( 8 ), 5376-5399, doi:10.1029/2019JC015330 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2019JC015330 Other URLs:
Kostov, Yavor; Johnson, Helen L.; Marshall, David P. (2019). AMOC sensitivity to surface buoyancy fluxes: the role of air-sea feedback mechanisms, Climate Dynamics, 7-8 (53), 4521-4537, 10.1007/s00382-019-04802-4. Title: AMOC sensitivity to surface buoyancy fluxes : the character of air-sea feedback mechanism Type: Journal article Publication: Climate Dynamics Author(s): Kostov, Yavor ; Johnson, Helen L. ; Marshall, David P. Year: 2019 Formatted Citation: Kostov, Y., H. L. Johnson, and D. P. Marshall, 2019 : AMOC sensitivity to surface irrepressibility fluxes : the role of air-sea feedback mechanism. Climate Dynamics, 53 ( 7-8 ), 4521-4537, doi:10.1007/s00382-019-04802-4 Abstract: Keywords: ECCO Products Used: ECCO-V4 ; adjointURL: http://link.springer.com/10.1007/s00382-019-04802-4 Other URLs:
Ott, Lesley; Pawson, Steven; Collatz, Jim; Watson, Gregg; Menemenlis, Dimitris; Brix, Holger; Rousseaux, Cecile; Bowman, Kevin; Liu, Junjie; Eldering, Annmarie; Gunson, Michael; Kawa, Stephan R. (2019). Quantifying the observability of CO2 flux uncertainty in atmospheric CO2 records using products from NASA’s Carbon Monitoring Flux Pilot Project. Title: Quantifying the observability of CO2 flux doubt in atmospheric CO2 records using products from NASA ’ s Carbon Monitoring Flux Pilot Project Type: Report Publication: Author(s): Ott, Lesley ; Pawson, Steven ; Collatz, Jim ; Watson, Gregg ; Menemenlis, Dimitris ; Brix, Holger ; Rousseaux, Cecile ; Bowman, Kevin ; Liu, Junjie ; Eldering, Annmarie ; Gunson, Michael ; Kawa, Stephan R. Year: 2019 Formatted Citation: Ott, L. and Coauthors, 2019 : Quantifying the observability of CO2 flux uncertainty in atmospheric CO2 records using products from NASA ‘s Carbon Monitoring Flux Pilot Project., Greenbelt, MD, 21 pp. hypertext transfer protocol : //ntrs.nasa.gov/search.jsp ? R=20150001279. Abstract: NASAs Carbon Monitoring System ( CMS ) Flux Pilot Project ( FPP ) was designed to better sympathize contemporary carbon fluxes by bringing together state-of-the art models with distant sensing datasets. here we report on simulations using NASAs Goddard Earth Observing System Model, interpretation 5 ( GEOS-5 ) which was used to evaluate the consistency of two different sets of observationally constrained country and ocean fluxes with atmospheric CO2 records. Despite the potent data restraint, the average deviation in annual tellurian biosphere flux between the two land ( NASA Ames CASA and CASA-GFED ) models is 1.7 Pg C for 2009-2010. Ocean models ( NOBM and ECCO2-Darwin ) differ by 35 in their ball-shaped estimates of carbon paper flux with peculiarly hard disagreement in high latitudes. Based upon combinations of mundane and ocean fluxes, GEOS-5 reasonably simulated the seasonal bicycle observed at northern hemisphere surface sites and by the Greenhouse gases Observing SATellite ( GOSAT ) while the model struggled to simulate the seasonal cycle at southerly hemisphere coat locations. Though GEOS-5 was able to reasonably reproduce the patterns of XCO2 observed by GOSAT, it struggled to reproduce these aspects of AIRS observations. Despite big differences between farming and ocean flux density estimates, resulting differences in atmospheric shuffle ratio were small, typically less than 5 ppmv at the coat and 3 ppmv in the XCO2 column. A statistical analysis based on the unevenness of observations shows that flux differences of these magnitudes are difficult to distinguish from natural variability, careless of measurement platform. Keywords: ATMOSPHERIC COMPOSITION, ATMOSPHERIC GENERAL CIRCULATION MODELS, BIOGEOCHEMISTRY, BIOSPHERE, CARBON, CARBON DIOXIDE CONCENTRATION, EARTH OBSERVING SYSTEM ( EOS ), FLUX QUANTIZATION, GREENHOUSE EFFECT, JAPAN, MIXING RATIOS, MODIS ( RADIOMETRY ), NORTHERN HEMISPHERE, OCEAN MODELS, OCEANS, REMOTE SENSING, SIMULATION, SOUTHERN HEMISPHERE ECCO Products Used: ECCO2URL: https://ntrs.nasa.gov/search.jsp?R=20150001279 Other URLs:
Sinha, Anirban; Balwada, Dhruv; Tarshish, Nathaniel; Abernathey, Ryan (2019). Modulation of Lateral Transport by Submesoscale Flows and Inertia-Gravity Waves, Journal of Advances in Modeling Earth Systems, 2018MS001508, 10.1029/2018MS001508. Title: Modulation of Lateral Transport by Submesoscale Flows and Inertia-Gravity Waves Type: Journal article Publication: Journal of Advances in Modeling Earth Systems Author(s): Sinha, Anirban ; Balwada, Dhruv ; Tarshish, Nathaniel ; Abernathey, Ryan Year: 2019 Formatted Citation: Sinha, A., D. Balwada, N. Tarshish, and R. Abernathey, 2019 : transition of Lateral Transport by Submesoscale Flows and Inertia-Gravity Waves. Journal of Advances in Modeling Earth Systems, 2018MS001508, doi:10.1029/2018MS001508 Abstract: Keywords: ECCO Products Used: LLC_hiresURL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2018MS001508 Other URLs:
Yu, Xiaolong; Naveira Garabato, Alberto C.; Martin, Adrian P; Buckingham, Christian E; Brannigan, Liam; Su, Zhan (2019). An Annual Cycle of Submesoscale Vertical Flow and Restratification in the Upper Ocean, Journal of Physical Oceanography, JPO-D-18-0253.1, 10.1175/JPO-D-18-0253.1. Title: An annual cycle of Submesoscale Vertical Flow and Restratification in the Upper Ocean Type: Journal article Publication: Journal of Physical Oceanography Author(s): Yu, Xiaolong ; Naveira Garabato, Alberto C. ; Martin, Adrian P ; Buckingham, Christian E ; Brannigan, Liam ; Su, Zhan Year: 2019 Formatted Citation: Yu, X., A. C. Naveira Garabato, A. P. Martin, C. E. Buckingham, L. Brannigan, and Z. Su, 2019 : An annual cycle of Submesoscale Vertical Flow and Restratification in the Upper Ocean. Journal of Physical Oceanography, JPO-D-18-0253.1, doi:10.1175/JPO-D-18-0253.1 Abstract: Keywords: ECCO Products Used: LLC_hiresURL: http://journals.ametsoc.org/doi/10.1175/JPO-D-18-0253.1 Other URLs:
Callies, Jörn; Wu, Weiguang (2019). Some Expectations for Submesoscale Sea Surface Height Variance Spectra, Journal of Physical Oceanography, 9 (49), 2271-2289, 10.1175/JPO-D-18-0272.1. Title: Some Expectations for Submesoscale Sea Surface Height Variance Spectra Type: Journal article Publication: Journal of Physical Oceanography Author(s): Callies, Jörn ; Wu, Weiguang Year: 2019 Formatted Citation: Callies, J., and W. Wu, 2019 : Some Expectations for Submesoscale Sea Surface Height Variance Spectra. Journal of Physical Oceanography, 49 ( 9 ), 2271-2289, doi:10.1175/JPO-D-18-0272.1 Abstract: In prediction of the Surface Water and Ocean Topography ( SWOT ) wide-swath altimetry mission, this report reviews expectations for sea surface height ( SSH ) discrepancy spectrum at wavelengths of 10-100 kilometer. Kinetic energy spectrum from in situ observations and numeral simulations indicate that SSH discrepancy spectrum associated with balanced menstruate fell off steeply with wavenumber, with at least the negative fourth power of the wavenumber. Such a steep decrease implies that even drastic reductions in altimetry make noise concede only a minor improvement in the resolution of poise flow. This general expectation is made concrete by extrapolating SSH division spectrum from existing altimetry to submesoscales, the results of which suggest that in the extratropics ( poleward of 20° latitude ) SWOT will improve the resoluteness from presently about 100 km to a median of 51 or 74 km, depending on whether or not submesoscale balanced flows are energetic. Internal waves, in contrast to balanced flow, give lift to SSH variance spectrum that drop off relatively gently with wavenumber, so SSH variance should become strongly dominated by inner waves in the submesoscale range. In situ observations of the internal-wave field suggest that the internal-wave bespeak accessible by SWOT will be largely dominated by inner tides. The internal-wave continuum is estimated to have a spectral level close up to but slightly lower than SWOT ‘s expected make noise tied. Keywords: ECCO Products Used: ECCO-V4URL: http://journals.ametsoc.org/doi/10.1175/JPO-D-18-0272.1 Other URLs:
Klos, Anna; Gruszczynska, Marta; Bos, Machiel Simon; Boy, Jean-paul; Bogusz, Janusz (2019). Estimates of Vertical Velocity Errors for IGS ITRF2014 Stations by Applying the Improved Singular Spectrum Analysis Method and Environmental Loading Models, Geodynamics and Earth Tides Observations from Global to Micro Scale, 229-246, 10.1007/978-3-319-96277-1_18. Title: Estimates of Vertical Velocity Errors for IGS ITRF2014 Stations by Applying the Improved Singular Spectrum Analysis Method and Environmental Loading Models Type: Book section Publication: Geodynamics and Earth Tides Observations from Global to Micro Scale Author(s): Klos, Anna ; Gruszczynska, Marta ; Bos, Machiel Simon ; Boy, Jean-paul ; Bogusz, Janusz Year: 2019 Formatted Citation: Klos, A., M. Gruszczynska, M. S. Bos, J. Boy, and J. Bogusz, 2019 : Estimates of Vertical Velocity Errors for IGS ITRF2014 Stations by Applying the Improved Singular Spectrum Analysis Method and Environmental Loading Models. Geodynamics and Earth Tides Observations from Global to Micro Scale, Springer, 229-246, doi:10.1007/978-3-319-96277-1_18 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://doi.org/10.1007/978-3-319-96277-1_18 Other URLs: hypertext transfer protocol : //link.springer.com/10.1007/978-3-319-96277-1_18
Hutter, Nils; Zampieri, Lorenzo; Losch, Martin (2019). Leads and ridges in Arctic sea ice from RGPS data and a new tracking algorithm, The Cryosphere, 2 (13), 627-645, 10.5194/tc-13-627-2019. Title: Leads and ridges in Arctic sea frosting from RGPS data and a new track algorithm Type: Journal article Publication: The Cryosphere Author(s): Hutter, Nils ; Zampieri, Lorenzo ; Losch, Martin Year: 2019 Formatted Citation: Hutter, N., L. Zampieri, and M. Losch, 2019 : Leads and ridges in Arctic sea methamphetamine from RGPS data and a newfangled trailing algorithm. Cryosph., 13 ( 2 ), 627-645, doi:10.5194/tc-13-627-2019 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://www.the-cryosphere-discuss.net/tc-2018-207/ Other URLs: hypertext transfer protocol : //doi.org/10.5194/tc-13-627-2019 % 0A, hypertext transfer protocol : //www.the-cryosphere.net/13/627/2019/
Ferster, Brady Scott (2019). The Role of the Southern Ocean on Global Ocean Circulation and Climate. Title: The Role of the Southern Ocean on Global Ocean Circulation and Climate Type: thesis Publication: Author(s): Ferster, Brady Scott Year: 2019 Formatted Citation: Ferster, B. S., 2019 : The Role of the Southern Ocean on Global Ocean Circulation and Climate. hypertext transfer protocol : //scholarcommons.sc.edu/etd/5376/. Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://scholarcommons.sc.edu/etd/5376/ Other URLs:
Sun, Qiwei; Du, Yan; Zhang, Yuhong; Feng, Ming; Chowdary, Jasti S.; Chi, Jianwei; Qiu, Shuang; Yu, Weidong (2019). Evolution of Sea Surface Salinity Anomalies in the Southwestern Tropical Indian Ocean During 2010-2011 Influenced by a Negative IOD Event, Journal of Geophysical Research: Oceans, 5 (124), 3428-3445, 10.1029/2018JC014580. Title: Evolution of Sea Surface Salinity Anomalies in the Southwestern Tropical indian Ocean During 2010-2011 Influenced by a minus IOD Event Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Sun, Qiwei ; Du, Yan ; Zhang, Yuhong ; Feng, Ming ; Chowdary, Jasti S. ; Chi, Jianwei ; Qiu, Shuang ; Yu, Weidong Year: 2019 Formatted Citation: Sun, Q., Y. Du, Y. Zhang, M. Feng, J. S. Chowdary, J. Chi, S. Qiu, and W. Yu, 2019 : development of Sea Surface Salinity Anomalies in the Southwestern Tropical amerind Ocean During 2010-2011 Influenced by a negative IOD Event. J. Geophys. Res. Ocean., 124 ( 5 ), 3428-3445, doi:10.1029/2018JC014580 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2018JC014580 Other URLs:
Frajka-Williams, Eleanor; Ansorge, Isabelle J.; Baehr, Johanna; Bryden, Harry L.; Chidichimo, Maria Paz; Cunningham, Stuart A.; Danabasoglu, Gokhan; Dong, Shenfu; Donohue, Kathleen A.; Elipot, Shane; Heimbach, Patrick; Holliday, N. Penny; Hummels, Rebecca; Jackson, Laura C.; Karstensen, Johannes; Lankhorst, Matthias; Le Bras, Isabela A.; Lozier, M. Susan; McDonagh, Elaine L.; Meinen, Christopher S.; Mercier, Herlé; Moat, Bengamin I.; Perez, Renellys C.; Piecuch, Christopher G.; Rhein, Monika; Srokosz, Meric A.; Trenberth, Kevin E.; Bacon, Sheldon; Forget, Gael; Goni, Gustavo; Kieke, Dagmar; Koelling, Jannes; Lamont, Tarron; McCarthy, Gerard D.; Mertens, Christian; Send, Uwe; Smeed, David A.; Speich, Sabrina; van den Berg, Marcel; Volkov, Denis; Wilson, Chris (2019). Atlantic Meridional Overturning Circulation: Observed Transport and Variability, Frontiers in Marine Science (6), 10.3389/fmars.2019.00260. Title: Atlantic Meridional Overturning circulation : Observed Transport and Variability Type: Journal article Publication: Frontiers in Marine Science Author(s): Frajka-Williams, Eleanor ; Ansorge, Isabelle J. ; Baehr, Johanna ; Bryden, Harry L. ; Chidichimo, Maria Paz ; Cunningham, Stuart A. ; Danabasoglu, Gokhan ; Dong, Shenfu ; Donohue, Kathleen A. ; Elipot, Shane ; Heimbach, Patrick ; Holliday, N. Penny ; Hummels, Rebecca ; Jackson, Laura C. ; Karstensen, Johannes ; Lankhorst, Matthias ; Le Bras, Isabela A. ; Lozier, M. Susan ; McDonagh, Elaine L. ; Meinen, Christopher S. ; Mercier, Herlé ; Moat, Bengamin I. ; Perez, Renellys C. ; Piecuch, Christopher G. ; Rhein, Monika ; Srokosz, Meric A. ; Trenberth, Kevin E. ; Bacon, Sheldon ; Forget, Gael ; Goni, Gustavo ; Kieke, Dagmar ; Koelling, Jannes ; Lamont, Tarron ; McCarthy, Gerard D. ; Mertens, Christian ; Send, Uwe ; Smeed, David A. ; Speich, Sabrina ; van den Berg, Marcel ; Volkov, Denis ; Wilson, Chris Year: 2019 Formatted Citation: Frajka-Williams, E. and Coauthors, 2019 : Atlantic Meridional Overturning circulation : Observed Transport and Variability. Frontiers in Marine Science, 6, doi:10.3389/fmars.2019.00260 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://www.frontiersin.org/article/10.3389/fmars.2019.00260/full Other URLs:
Asbjørnsen, Helene; Årthun, Marius; Skagseth, Øystein; Eldevik, Tor (2019). Mechanisms of Ocean Heat Anomalies in the Norwegian Sea, Journal of Geophysical Research: Oceans, 4 (124), 2908-2923, 10.1029/2018JC014649. Title: Mechanisms of Ocean Heat Anomalies in the norwegian Sea Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Asbjørnsen, Helene ; Årthun, Marius ; Skagseth, Øystein ; Eldevik, Tor Year: 2019 Formatted Citation: Asbjørnsen, H., M. Årthun, Ø. Skagseth, and T. Eldevik, 2019 : Mechanisms of Ocean Heat Anomalies in the norwegian Sea. J. Geophys. Res. Ocean., 124 ( 4 ), 2908-2923, doi:10.1029/2018JC014649 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2018JC014649 Other URLs:
Lebehot, Alice D.; Halloran, Paul R.; Watson, Andrew J.; McNeall, Doug; Ford, David A.; Landschützer, Peter; Lauvset, Siv K.; Schuster, Ute (2019). Reconciling Observation and Model Trends in North Atlantic Surface CO 2, Global Biogeochemical Cycles, 10 (33), 1204-1222, 10.1029/2019GB006186. Title: Reconciling Observation and Model Trends in North Atlantic Surface CO 2 Type: Journal article Publication: Global Biogeochemical Cycles Author(s): Lebehot, Alice D. ; Halloran, Paul R. ; Watson, Andrew J. ; McNeall, Doug ; Ford, David A. ; Landschützer, Peter ; Lauvset, Siv K. ; Schuster, Ute Year: 2019 Formatted Citation: Lebehot, A. D., P. R. Halloran, A. J. Watson, D. McNeall, D. A. Ford, P. Landschützer, S. K. Lauvset, and U. Schuster, 2019 : Reconciling Observation and Model Trends in North Atlantic Surface CO 2. global Biogeochemical Cycles, 33 ( 10 ), 1204-1222, doi:10.1029/2019GB006186 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2019GB006186 Other URLs:
Schnepf, Neesha Regmi (2019). Earth’s Oceanic Electromagnetic Signals and Their Applications in Electromagnetic Sensing, Monitoring Circulation, and Hazard Warning Systems. Title: Earth ’ s Oceanic Electromagnetic Signals and Their Applications in Electromagnetic Sensing, Monitoring Circulation, and Hazard Warning Systems Type: thesis Publication: Author(s): Schnepf, Neesha Regmi Year: 2019 Formatted Citation: Schnepf, N. R., 2019 : earth ‘s Oceanic Electromagnetic Signals and Their Applications in Electromagnetic Sensing, Monitoring Circulation, and Hazard Warning Systems. Abstract: Keywords: ECCO Products Used: ECCO-V4 URL: Other URLs:
Chereskin, Teresa K.; Rocha, Cesar B.; Gille, Sarah T.; Menemenlis, Dimitris; Passaro, Marcello (2019). Characterizing the Transition From Balanced to Unbalanced Motions in the Southern California Current, Journal of Geophysical Research: Oceans, 3 (124), 2088-2109, 10.1029/2018JC014583. Title: Characterizing the transition From Balanced to Unbalanced Motions in the Southern California Current Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Chereskin, Teresa K. ; Rocha, Cesar B. ; Gille, Sarah T. ; Menemenlis, Dimitris ; Passaro, Marcello Year: 2019 Formatted Citation: Chereskin, T. K., C. B. Rocha, S. T. Gille, D. Menemenlis, and M. Passaro, 2019 : Characterizing the transition From Balanced to Unbalanced Motions in the Southern California Current. J. Geophys. Res. Ocean., 124 ( 3 ), 2088-2109, doi:10.1029/2018JC014583 Abstract: Keywords: ECCO Products Used: LLC_hiresURL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2018JC014583 Other URLs:
Zhang, Y.; Guan, Y. P. (2019). Striations in Marginal Seas and the Mediterranean Sea, Geophysical Research Letters, 5 (46), https://doi.org/10.1029/2018GL081050. Title: Striations in Marginal Seas and the Mediterranean Sea Type: Journal article Publication: Geophysical Research Letters Author(s): Zhang, Y. ; Guan, Y. P. Year: 2019 Formatted Citation: Zhang, Y., and Y. P. Guan, 2019 : Striations in Marginal Seas and the Mediterranean Sea. Geophys. Res. Lett., 46 ( 5 ), department of the interior : hypertext transfer protocol : //doi.org/10.1029/2018GL081050 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://doi.org/10.1029/2018GL081050%0A Other URLs:
Li, Guancheng; Zhang, Yuhong; Xiao, Jingen; Song, Xiangzhou; Abraham, John; Cheng, Lijing; Zhu, Jiang (2019). Examining the salinity change in the upper Pacific Ocean during the Argo period, Climate Dynamics, 9 (53), 6055-6074, 10.1007/s00382-019-04912-z. Title: Examining the brininess change in the upper Pacific Ocean during the Argo menstruation Type: Journal article Publication: Climate Dynamics Author(s): Li, Guancheng ; Zhang, Yuhong ; Xiao, Jingen ; Song, Xiangzhou ; Abraham, John ; Cheng, Lijing ; Zhu, Jiang Year: 2019 Formatted Citation: Li, G., Y. Zhang, J. Xiao, X. Song, J. Abraham, L. Cheng, and J. Zhu, 2019 : Examining the brininess change in the upper Pacific Ocean during the Argo period. Climate Dynamics, 53 ( 9 ), 6055-6074, doi:10.1007/s00382-019-04912-z Abstract: During the Argo period, the Pacific Ocean adenine well as the ball-shaped oceans became saltier in the upper-200 megabyte from 2005 to 2015, with a significant spatial unevenness. Using Argo-based observations and the Estimating the Circulation and Climate of the Ocean ( ECCO ), a salt budget analysis in the upper 200 molarity was conducted to investigate what controls the recent observe salt change in the Pacific Ocean. The results showed that the increasing brininess since 2005 was chiefly caused by a decrease of come on precipitation. The ocean advection dampened the come on fresh water anomalies and rebuild regional salt balance. Both haste and advection are closely associated with the sea surface wind anomalies, suggesting the wind-driven changes in the ocean brininess playing field. A foster analysis using an ocean objective analysis intersection and model simulations in addition to ECCO suggests that the recent salt practice since 2005 are related to the Interdecadal Pacific Oscillation ( IPO ). This study besides highlights the strong regulation of the ocean salt change by natural decadal variability in the climate system. Keywords: ECCO Products Used: ECCO-V4URL: https://doi.org/10.1007/s00382-019-04912-z Other URLs:
Sinha, Anirban (2019). Temporal Variability in Ocean Mesoscale and Submesoscale Turbulence. Title: Temporal Variability in Ocean Mesoscale and Submesoscale Turbulence Type: thesis Publication: Author(s): Sinha, Anirban Year: 2019 Formatted Citation: Sinha, A., 2019 : temporal Variability in Ocean Mesoscale and Submesoscale Turbulence. Abstract: Keywords: ECCO Products Used: LLC_hires URL: Other URLs:
Wang, Jinbo; Fu, Lee-Lueng; Torres, Hector S.; Chen, Shuiming; Qiu, Bo; Menemenlis, Dimitris (2019). On the Spatial Scales to be Resolved by the Surface Water and Ocean Topography Ka-Band Radar Interferometer, Journal of Atmospheric and Oceanic Technology, 1 (36), 87-99, 10.1175/JTECH-D-18-0119.1. Title: On the Spatial Scales to be Resolved by the Surface Water and Ocean Topography Ka-Band Radar Interferometer Type: Journal article Publication: Journal of Atmospheric and Oceanic Technology Author(s): Wang, Jinbo ; Fu, Lee-Lueng ; Torres, Hector S. ; Chen, Shuiming ; Qiu, Bo ; Menemenlis, Dimitris Year: 2019 Formatted Citation: Wang, J., L. Fu, H. S. Torres, S. Chen, B. Qiu, and D. Menemenlis, 2019 : On the Spatial Scales to be Resolved by the Surface Water and Ocean Topography Ka-Band Radar Interferometer. Journal of Atmospheric and Oceanic Technology, 36 ( 1 ), 87-99, doi:10.1175/JTECH-D-18-0119.1 Abstract: Keywords: ECCO Products Used: LLC_hiresURL: http://journals.ametsoc.org/doi/10.1175/JTECH-D-18-0119.1 Other URLs:
Stanley, Geoffrey J. (2019). Neutral surface topology, Ocean Modelling, 10.1016/j.ocemod.2019.01.008. Title: Neutral come on topology Type: Journal article Publication: Ocean Modelling Author(s): Stanley, Geoffrey J. Year: 2019 Formatted Citation: Stanley, G. J., 2019 : achromatic surface regional anatomy. Ocean Modelling, doi:10.1016/j.ocemod.2019.01.008 Abstract: Keywords: ECCO Products Used: ECCO2 ; OCCAURL: https://doi.org/10.1016/j.ocemod.2019.01.008%0A Other URLs:
Yu, Xiaolong; Ponte, Aurélien L.; Elipot, Shane; Menemenlis, Dimitris; Zaron, Edward D.; Abernathey, Ryan (2019). Surface Kinetic Energy Distributions in the Global Oceans From a High-Resolution Numerical Model and Surface Drifter Observations, Geophysical Research Letters, 16 (46), 9757-9766, 10.1029/2019GL083074. Title: Surface Kinetic Energy Distributions in the Global Oceans From a High-Resolution Numerical Model and Surface Drifter Observations Type: Journal article Publication: Geophysical Research Letters Author(s): Yu, Xiaolong ; Ponte, Aurélien L. ; Elipot, Shane ; Menemenlis, Dimitris ; Zaron, Edward D. ; Abernathey, Ryan Year: 2019 Formatted Citation: Yu, X., A. L. Ponte, S. Elipot, D. Menemenlis, E. D. Zaron, and R. Abernathey, 2019 : Surface Kinetic Energy Distributions in the Global Oceans From a High-Resolution Numerical Model and Surface Drifter Observations. Geophys. Res. Lett., 46 ( 16 ), 9757-9766, doi:10.1029/2019GL083074 Abstract: Keywords: ECCO Products Used: LLC_hiresURL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2019GL083074 Other URLs:
Trossman, D. S.; Tyler, R. H. (2019). Predictability of Ocean Heat Content from Electrical Conductance, Journal of Geophysical Research: Oceans, 0 (0), 10.1029/2018JC014740. Title: Predictability of Ocean Heat Content from Electrical Conductance Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Trossman, D. S. ; Tyler, R. H. Year: 2019 Formatted Citation: Trossman, D. S., and R. H. Tyler, 2019 : predictability of Ocean Heat Content from electric Conductance. J. Geophys. Res. Ocean., 0 ( 0 ), doi:10.1029/2018JC014740 Abstract: Ocean heat content ( OHC ) is a key climate variable that needs to be monitored to know how Earth ‘s energy imbalance is changing, so far observing OHC remains a challenge. The present study examines whether a depth built-in of the ocean ‘s electrical conduction ( “ conductance ” ), which may be inferred from both in situ methods and satellite magnetometers over the ball-shaped ocean, could help monitor OHC. The ocean ‘s electric conduction locally depends on temperature, brininess, and pressure, but it is not a well known how the conductance depends on OHC and ocean salt contented. By examining the output signal of an ocean state estimate shown to agree well with observations that have not been assimilated, this report evaluates the fundamental limitations of using perfectly known ocean conductance to predict OHC, rather than the challenges associated with account for experimental error. It is found that the ocean ‘s conductance and OHC fields are nonlinearly related but however highly correlated. A statistical model tends to predict OHC more accurately than ocean salt content from ocean conductance in regions where conduction is more sensitive to brininess than temperature. The per annum ( bidecadally ) averaged OHC can be predicted from a combination of conductance and depth-averaged conduction ocean fields to within closely 0.1 % ( 1 % ) error globally and even more accurately in many ailing observed ( for example, ice-covered ) regions. practical application of this statistical model to monitor OHC requires examen of the effect of uncertainties in the observe bathymetry and ocean conductance, which vary with lotion. Keywords: conductance, conduction, heat, ocean, prediction, state calculate ECCO Products Used: ECCO-V4URL: http://doi.wiley.com/10.1029/2018JC014740 Other URLs:
Ridenour, Natasha A.; Hu, Xianmin; Sydor, Kevin; Myers, Paul G.; Barber, David G. (2019). Revisiting the Circulation of Hudson Bay: Evidence for a Seasonal Pattern, Geophysical Research Letters, 7 (46), 3891-3899, 10.1029/2019GL082344. Title: Revisiting the circulation of Hudson Bay : testify for a Seasonal Pattern Type: Journal article Publication: Geophysical Research Letters Author(s): Ridenour, Natasha A. ; Hu, Xianmin ; Sydor, Kevin ; Myers, Paul G. ; Barber, David G. Year: 2019 Formatted Citation: Ridenour, N. A., X. Hu, K. Sydor, P. G. Myers, and D. G. Barber, 2019 : Revisiting the circulation of Hudson Bay : attest for a Seasonal Pattern. Geophys. Res. Lett., 46 ( 7 ), 3891-3899, doi:10.1029/2019GL082344 Abstract: The Hudson Bay Complex ( HBC ) is the mercantile establishment for many canadian rivers, receiving roughly 900 km3/year of river runoff. Historically, studies found a consistent cyclonic flow year-round in Hudson Bay, due to the geostrophic limit stream induced by river empty and cyclonic wind push that was supported by available observations at that meter. Using a high gear resolution ocean cosmopolitan circulation model, we show that, in summer, the mean circulation is not cyclonic, but consists of multiple little cyclonic and anticyclonic features, with the mean flow directed through the plaza of the bay. Absolute Dynamic Topography ( ADT ) and speed observations besides show this seasonal menstruation blueprint. We find that this summer circulation is driven by geostrophic currents, generated by steric stature gradients which are induced by increased river free during the spring freshet, and reinforced by anticyclonic seasonal wind patterns. Keywords: Hudson Bay, anticyclonic circulation, atmospheric coerce, moral force topography, fresh water, numerical model ECCO Products Used: ECCO2 URL: Other URLs:
Mu, Longjiang; Liang, Xi; Yang, Qinghua; Liu, Jiping; Zheng, Fei (2019). Arctic Ice Ocean Prediction System: evaluating sea-ice forecasts during Xuelong ’s first trans-Arctic Passage in summer 2017, Journal of Glaciology, 253 (65), 813-821, 10.1017/jog.2019.55. Title: Arctic Ice Ocean Prediction System : evaluating sea-ice forecasts during Xuelong ’ second inaugural trans-Arctic passage in summer 2017 Type: Journal article Publication: Journal of Glaciology Author(s): Mu, Longjiang ; Liang, Xi ; Yang, Qinghua ; Liu, Jiping ; Zheng, Fei Year: 2019 Formatted Citation: Mu, L., X. Liang, Q. Yang, J. Liu, and F. Zheng, 2019 : arctic Ice Ocean Prediction System : evaluating sea-ice forecasts during Xuelong ‘s inaugural trans-Arctic passage in summer 2017. Journal of Glaciology, 65 ( 253 ), 813-821, doi:10.1017/jog.2019.55 Abstract: In an feat to improve the dependability of Arctic sea-ice predictions, an ensemble-based Arctic Ice Ocean Prediction System ( ArcIOPS ) has been developed to meet operational demands. The system is based on a regional Arctic configuration of the Massachusetts Institute of Technology general circulation model. A localized erroneousness subspace translate ensemble Kalman filter is used to assimilate the weekly merged CryoSat-2 and Soil Moisture and Ocean Salinity sea-ice thickness data together with the daily Advanced Microwave Scanning Radiometer 2 ( AMSR2 ) sea-ice concentration data. The weather forecasts from the Global Forecast System of the National Centers for Environmental Prediction drive the sea ice-ocean coupled model. The ensemble mean sea-ice forecasts were used to facilitate the chinese National Arctic Research Expedition in summer 2017. The forecast sea-ice concentration is evaluated against AMSR2 and Special Sensor Microwave Imager/Sounder sea-ice concentration data. The calculate sea-ice thickness is compared to the in-situ observations and the Pan-Arctic Ice-Ocean Modeling and Assimilation System. These comparisons show the promise potential of ArcIOPS for operational Arctic sea-ice forecasts. however, the bode bias in the Beaufort Sea calls for a delicate parameter calibration and a better design of the assimilation system. Keywords: ECCO Products Used: ECCO2URL: https://www.cambridge.org/core/product/identifier/S0022143019000558/type/journal_article Other URLs:
Cessi, Paola (2019). The Global Overturning Circulation, Annual Review of Marine Science, 1 (11), 249-270, 10.1146/annurev-marine-010318-095241. Title: The Global Overturning Circulation Type: Journal article Publication: Annual Review of Marine Science Author(s): Cessi, Paola Year: 2019 Formatted Citation: Cessi, P., 2019 : The Global Overturning Circulation. Annual Review of Marine Science, 11 ( 1 ), 249-270, doi:10.1146/annurev-marine-010318-095241 Abstract: In this article, I use the Estimating the Circulation and Climate of the Ocean adaptation 4 ( ECCO4 ) reanalysis to estimate the remainder meridional overturning circulation, zonally averaged, over the separate Atlantic and Indo-Pacific sectors. The abyssal component of this estimate differs quantitatively from previously published estimates that use comparable observations, indicating that this part is still undersampled. I besides review holocene conceptual models of the oceanic meridional overturning circulation and of the mid-depth and abysmal stratification. These theories show that dynamics in the Antarctic circumpolar region are essential in determining the cryptic and abysmal stratification. In addition, they show that a mid-depth cellular telephone reproducible with experimental estimates is powered by the wind stress in the Antarctic circumpolar region, while the abyssal cell relies on interior diapycnal shuffle, which is bottom intensify. Keywords: ECCO Products Used: ECCO-V4URL: https://doi.org/10.1146/annurev-marine-010318-095241 Other URLs:
Sutterley, Tyler C.; Velicogna, Isabella (2019). Improved Estimates of Geocenter Variability from Time-Variable Gravity and Ocean Model Outputs, Remote Sensing, 18 (11), 2108, 10.3390/rs11182108. Title: Improved Estimates of Geocenter Variability from Time-Variable Gravity and Ocean Model Outputs Type: Journal article Publication: Remote Sensing Author(s): Sutterley, Tyler C. ; Velicogna, Isabella Year: 2019 Formatted Citation: Sutterley, T. C., and I. Velicogna, 2019 : Improved Estimates of Geocenter Variability from Time-Variable Gravity and Ocean Model Outputs. Remote Sensing, 11 ( 18 ), 2108, doi:10.3390/rs11182108 Abstract: Geocenter variations relate the motion of the Earth ‘s center of mass with regard to its center field of design, and represent global-scale redistributions of the Earth ‘s mass. We investigate different techniques for estimating of geocenter gesture from combinations of time-variable gravity measurements from the Gravity Recovery and Climate Experiment ( GRACE ) and GRACE Follow-On missions, and bottom pressure outputs from ocean models. hera, we provide self-consistent estimates of geocenter variability incorporating the effects of self-attraction and load, and investigate the consequence of uncertainties in atmospheric and oceanic variation. The effects of self-attraction and loading from changes in land water storage and ice mass change affect both the seasonality and long-run course in geocenter placement. Omitting the redistribution of sea level affects the average annual amplitudes of the x, y, and omega components by 0.2, 0.1, and 0.3 millimeter, respectively, and affects geocenter swerve estimates by 0.02, 0.04 and 0.05 mm/yr for the the x, y, and z components, respectively. Geocenter estimates from the GRACE Follow-On mission are consistent with estimates from the original GRACE mission. Keywords: ECCO Products Used: ECCO-KFS ; ECCO-V4URL: https://www.mdpi.com/2072-4292/11/18/2108 Other URLs:
Liu, Chao (2019). Variations of Global Ocean Salinity from Multiple Gridded Argo Products. Title: Variations of Global Ocean Salinity from Multiple Gridded Argo Products Type: thesis Publication: Author(s): Liu, Chao Year: 2019 Formatted Citation: Liu, C., 2019 : Variations of Global Ocean Salinity from Multiple Gridded Argo Products. Abstract: Keywords: ECCO Products Used: ECCO-V4 URL: Other URLs:
Cao, Haijin; Jing, Zhiyou; Fox-Kemper, Baylor; Yan, Tong; Qi, Yiquan (2019). Scale Transition From Geostrophic Motions to Internal Waves in the Northern South China Sea, Journal of Geophysical Research: Oceans, 12 (124), 9364-9383, 10.1029/2019JC015575. Title: Scale transition From Geostrophic Motions to Internal Waves in the Northern South China Sea Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Cao, Haijin ; Jing, Zhiyou ; Fox-Kemper, Baylor ; Yan, Tong ; Qi, Yiquan Year: 2019 Formatted Citation: Cao, H., Z. Jing, B. Fox-Kemper, T. Yan, and Y. Qi, 2019 : scale transition From Geostrophic Motions to Internal Waves in the Northern South China Sea. J. Geophys. Res. Ocean., 124 ( 12 ), 9364-9383, doi:10.1029/2019JC015575 Abstract: Keywords: ECCO Products Used: LLC_hiresURL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2019JC015575 Other URLs:
Caputi, Luigi; Carradec, Quentin; Eveillard, Damien; Kirilovsky, Amos; Pelletier, Eric; Pierella Karlusich, Juan J.; Rocha Jimenez Vieira, Fabio; Villar, Emilie; Chaffron, Samuel; Malviya, Shruti; Scalco, Eleonora; Acinas, Silvia G.; Alberti, Adriana; Aury, Jean Marc; Benoiston, Anne Sophie; Bertrand, Alexis; Biard, Tristan; Bittner, Lucie; Boccara, Martine; Brum, Jennifer R.; Brunet, Christophe; Busseni, Greta; Carratalà, Anna; Claustre, Hervé; Coelho, Luis Pedro; Colin, Sébastien; D’Aniello, Salvatore; Da Silva, Corinne; Del Core, Marianna; Doré, Hugo; Gasparini, Stéphane; Kokoszka, Florian; Jamet, Jean Louis; Lejeusne, Christophe; Lepoivre, Cyrille; Lescot, Magali; Lima-Mendez, Gipsi; Lombard, Fabien; Lukeš, Julius; Maillet, Nicolas; Madoui, Mohammed Amin; Martinez, Elodie; Mazzocchi, Maria Grazia; Néou, Mario B.; Paz-Yepes, Javier; Poulain, Julie; Ramondenc, Simon; Romagnan, Jean Baptiste; Roux, Simon; Salvagio Manta, Daniela; Sanges, Remo; Speich, Sabrina; Sprovieri, Mario; Sunagawa, Shinichi; Taillandier, Vincent; Tanaka, Atsuko; Tirichine, Leila; Trottier, Camille; Uitz, Julia; Veluchamy, Alaguraj; Veselá, Jana; Vincent, Flora; Yau, Sheree; Kandels-Lewis, Stefanie; Searson, Sarah; Dimier, Céline; Picheral, Marc; Bork, Peer; Boss, Emmanuel; de Vargas, Colomban; Follows, Michael J.; Grimsley, Nigel; Guidi, Lionel; Hingamp, Pascal; Karsenti, Eric; Sordino, Paolo; Stemmann, Lars; Sullivan, Matthew B.; Tagliabue, Alessandro; Zingone, Adriana; Garczarek, Laurence; D’Ortenzio, Fabrizio; Testor, Pierre; Not, Fabrice; D’Alcalà, Maurizio Ribera; Wincker, Patrick; Bowler, Chris; Iudicone, Daniele (2019). Community-Level Responses to Iron Availability in Open Ocean Plankton Ecosystems, Global Biogeochemical Cycles, 10.1029/2018GB006022. Title: Community-Level Responses to Iron Availability in Open Ocean Plankton Ecosystems Type: Journal article Publication: Global Biogeochemical Cycles Author(s): Caputi, Luigi ; Carradec, Quentin ; Eveillard, Damien ; Kirilovsky, Amos ; Pelletier, Eric ; Pierella Karlusich, Juan J. ; Rocha Jimenez Vieira, Fabio ; Villar, Emilie ; Chaffron, Samuel ; Malviya, Shruti ; Scalco, Eleonora ; Acinas, Silvia G. ; Alberti, Adriana ; Aury, Jean Marc ; Benoiston, Anne Sophie ; Bertrand, Alexis ; Biard, Tristan ; Bittner, Lucie ; Boccara, Martine ; Brum, Jennifer R. ; Brunet, Christophe ; Busseni, Greta ; Carratalà, Anna ; Claustre, Hervé ; Coelho, Luis Pedro ; Colin, Sébastien ; D’Aniello, Salvatore ; Da Silva, Corinne ; Del Core, Marianna ; Doré, Hugo ; Gasparini, Stéphane ; Kokoszka, Florian ; Jamet, Jean Louis ; Lejeusne, Christophe ; Lepoivre, Cyrille ; Lescot, Magali ; Lima-Mendez, Gipsi ; Lombard, Fabien ; Lukeš, Julius ; Maillet, Nicolas ; Madoui, Mohammed Amin ; Martinez, Elodie ; Mazzocchi, Maria Grazia ; Néou, Mario B. ; Paz-Yepes, Javier ; Poulain, Julie ; Ramondenc, Simon ; Romagnan, Jean Baptiste ; Roux, Simon ; Salvagio Manta, Daniela ; Sanges, Remo ; Speich, Sabrina ; Sprovieri, Mario ; Sunagawa, Shinichi ; Taillandier, Vincent ; Tanaka, Atsuko ; Tirichine, Leila ; Trottier, Camille ; Uitz, Julia ; Veluchamy, Alaguraj ; Veselá, Jana ; Vincent, Flora ; Yau, Sheree ; Kandels-Lewis, Stefanie ; Searson, Sarah ; Dimier, Céline ; Picheral, Marc ; Bork, Peer ; Boss, Emmanuel ; de Vargas, Colomban ; Follows, Michael J. ; Grimsley, Nigel ; Guidi, Lionel ; Hingamp, Pascal ; Karsenti, Eric ; Sordino, Paolo ; Stemmann, Lars ; Sullivan, Matthew B. ; Tagliabue, Alessandro ; Zingone, Adriana ; Garczarek, Laurence ; D’Ortenzio, Fabrizio ; Testor, Pierre ; not, Fabrice ; D’Alcalà, Maurizio Ribera ; Wincker, Patrick ; Bowler, Chris ; Iudicone, Daniele Year: 2019 Formatted Citation: Caputi, L. and Coauthors, 2019 : Community-Level Responses to Iron Availability in Open Ocean Plankton Ecosystems. Global Biogeochemical Cycles, doi:10.1029/2018GB006022 Abstract: Predicting responses of plankton to variations in essential nutrients is hampered by express in situ measurements, a inadequate sympathize of community writing, and the miss of character gene catalogs for key taxonomic group. Iron is a key driver of plankton dynamics and, therefore, of global biogeochemical cycles and climate. To assess the shock of iron handiness on plankton communities, we explored the comprehensive examination bio-oceanographic and bio-omics data sets from Tara Oceans in the context of the cast-iron products from two state-of-the-art ball-shaped scale biogeochemical models. We obtained novel information about adaptation and acclimatization toward iron in a image of phytoplankton, including picocyanobacteria and diatoms, and identified unharmed subcommunities covarying with iron. Many of the observe global patterns were recapitulated in the Marquesas archipelago, where frequent plankton blooms are believed to be caused by natural iron fertilization, although they are not captured in large-scale biogeochemical models. This employment provides a proof of concept that integrative analyses, spanning from genes to ecosystems and viruses to zooplankton, can disentangle the complexity of plankton communities and can lead to more accurate formulations of resource bioavailability in biogeochemical models, therefore improving our sympathize of plankton resilience in a switch environment. Keywords: iron response, meta-omics, species networks, system biology ECCO Products Used: ECCO2URL: https://doi.org/10.1029/2018GB006022%0A Other URLs:
Liu, Chao; Liang, Xinfeng; Ponte, Rui M; Vinogradova, Nadya; Wang, Ou (2019). Vertical redistribution of salt and layered changes in global ocean salinity, Nature Communications, 1 (10), 3445, 10.1038/s41467-019-11436-x. Title: Vertical redistribution of salt and layered changes in ball-shaped ocean salt Type: Journal article Publication: Nature Communications Author(s): Liu, Chao ; Liang, Xinfeng ; Ponte, Rui M ; Vinogradova, Nadya ; Wang, Ou Year: 2019 Formatted Citation: Liu, C., X. Liang, R. M. Ponte, N. Vinogradova, and O. Wang, 2019 : vertical redistribution of salt and layered changes in ball-shaped ocean salt. nature Communications, 10 ( 1 ), 3445, doi:10.1038/s41467-019-11436-x Abstract: Salinity is an substantive proxy for estimating the global net fresh water input into the ocean. Due to the restrict spatial and worldly coverage of the existing salt measurements, former studies of global brininess changes focused largely on the surface and upper oceans. here, we examine global ocean salt changes and ocean vertical salt fluxes over the full depth in a dynamically consistent and data-constrained ocean country estimate. The changes of the horizontally average brininess display a vertically layer structure, coherent with the profiles of the ocean upright salt fluxes. For salt changes in the relatively well-observed upper ocean, the contribution of vertical substitution of salt can be on the lapp regulate of the net surface fresh water input. The vertical redistribution of salt frankincense should be considered in inferring changes in global ocean salt and the hydrological cycle from the open and upper ocean measurements. Keywords: ECCO Products Used: ECCO-V4URL: https://doi.org/10.1038/s41467-019-11436-x Other URLs:
Fu, Yao; Wang, Chunzai; Brandt, Peter; Greatbatch, Richard J. (2019). Interannual Variability of Antarctic Intermediate Water in the Tropical North Atlantic, Journal of Geophysical Research: Oceans, 6 (124), 4044-4057, 10.1029/2018JC014878. Title: Interannual Variability of Antarctic Intermediate Water in the Tropical North Atlantic Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Fu, Yao ; Wang, Chunzai ; Brandt, Peter ; Greatbatch, Richard J. Year: 2019 Formatted Citation: Fu, Y., C. Wang, P. Brandt, and R. J. Greatbatch, 2019 : Interannual Variability of Antarctic Intermediate Water in the Tropical North Atlantic. J. Geophys. Res. Ocean., 124 ( 6 ), 4044-4057, doi:10.1029/2018JC014878 Abstract: Keywords: ECCO Products Used: ECCO2 ; GECCO2URL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2018JC014878 Other URLs:
Hutter, Nils (2019). Resolving Leads in Sea-Ice Models: New Analysis Methods for Frontier Resolution Arctic Simulations. Title: Resolving Leads in Sea-Ice Models : New Analysis Methods for Frontier Resolution Arctic Simulations Type: thesis Publication: Author(s): Hutter, Nils Year: 2019 Formatted Citation: Hutter, N., 2019 : Resolving Leads in Sea-Ice Models : New Analysis Methods for Frontier Resolution Arctic Simulations. hypertext transfer protocol : //d-nb.info/1202334180/34. Abstract: Keywords: ECCO Products Used: LLC_hiresURL: https://d-nb.info/1202334180/34 Other URLs:
Brown, Nicola Jane; Nilsson, Johan; Pemberton, Per (2019). Arctic Ocean Freshwater Dynamics: Transient Response to Increasing River Runoff and Precipitation, Journal of Geophysical Research: Oceans, 7 (124), 5205-5219, 10.1029/2018JC014923. Title: Arctic Ocean Freshwater Dynamics : transient Response to Increasing River Runoff and Precipitation Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Brown, Nicola Jane ; Nilsson, Johan ; Pemberton, Per Year: 2019 Formatted Citation: Brown, N. J., J. Nilsson, and P. Pemberton, 2019 : arctic Ocean Freshwater Dynamics : ephemeral Response to Increasing River Runoff and Precipitation. J. Geophys. Res. Ocean., 124 ( 7 ), 5205-5219, doi:10.1029/2018JC014923 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2018JC014923 Other URLs:
Liang, Xi; Losch, Martin; Nerger, Lars; Mu, Longjiang; Yang, Qinghua; Liu, Chengyan (2019). Using Sea Surface Temperature Observations to Constrain Upper Ocean Properties in an Arctic Sea Ice-Ocean Data Assimilation System, Journal of Geophysical Research: Oceans, 7 (124), 4727-4743, 10.1029/2019JC015073. Title: Using Sea Surface Temperature Observations to Constrain Upper Ocean Properties in an Arctic Sea Ice-Ocean Data Assimilation System Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Liang, Xi ; Losch, Martin ; Nerger, Lars ; Mu, Longjiang ; Yang, Qinghua ; Liu, Chengyan Year: 2019 Formatted Citation: Liang, X., M. Losch, L. Nerger, L. Mu, Q. Yang, and C. Liu, 2019 : Using Sea Surface Temperature Observations to Constrain Upper Ocean Properties in an Arctic Sea Ice-Ocean Data Assimilation System. J. Geophys. Res. Ocean., 124 ( 7 ), 4727-4743, doi:10.1029/2019JC015073 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2019JC015073 Other URLs:
Mikolaj, M.; Reich, M.; Güntner, A. (2019). Resolving Geophysical Signals by Terrestrial Gravimetry: A Time Domain Assessment of the Correction-Induced Uncertainty, Journal of Geophysical Research: Solid Earth, 10.1029/2018JB016682. Title: Resolving geophysical Signals by mundane hydrometry : A Time Domain Assessment of the Correction-Induced Uncertainty Type: Journal article Publication: Journal of Geophysical Research : solid earth Author(s): Mikolaj, M. ; Reich, M. ; Güntner, A. Year: 2019 Formatted Citation: Mikolaj, M., M. Reich, and A. Güntner, 2019 : Resolving Geophysical Signals by planetary hydrometry : A Time Domain Assessment of the Correction-Induced Uncertainty. Journal of Geophysical Research : solid land, doi:10.1029/2018JB016682 Abstract: Terrestrial hydrometry is increasingly used to monitor mass conveyance processes in geophysics boosted by the ongoing technological development of instruments. Resolving a especial phenomenon of concern, however, requires a dress of graveness corrections of which the uncertainties have not been addressed up to now. In this study, we quantify the meter sphere doubt of tide, global atmospheric, large-scale hydrological, and non-tidal ocean loading corrections. The uncertainty is assessed by comparing the majority of available global models for a suite of sites worldwide. The median doubt expressed as root-mean-square error equals 5.1 nm/s2, discounting local hydrology or air press. The correction-induced doubt of gravity changes over versatile clock time periods of interest ranges from 0.6 nm/s2 for hours up to a maximum of 6.7 nm/s2 for six months. The corrections are shown to be significant and should be applied for most geophysical applications of mundane hydrometry. From a statistical orient of position however, resolving elusive graveness effects in the order of few nm/s2 is challenged by the uncertainty of the corrections. many scientist are exploring ways to benefit from gravity measurements in fields of high social relevance such as monitor of volcanoes or measuring the sum of water in underground. Any application of such new methods, however, requires careful homework of the gravity measurements. The purpose of the cooking process is to ensure that the measurements do not contain information about processes which are not of sake. For that reason, the influence of atmosphere, ocean, tides and hydrology needs to be reduced from the gravity. In this study, we investigate how this reduction serve influences the timbre of the measurement. We found that the preciseness degrades particularly owing to the hydrology. The ocean plays an significant role at sites close to the coast and the atmosphere at sites located in mountains. The overall errors of the reductions may complicate a dependable practice of graveness measurements in certain studies focusing on very small signals. however, the preciseness of gravity reductions alone does not obstruct a meaningful consumption of graveness measurements in most research fields. Details specifying the reduction preciseness are provided in this study allowing scientist dealing with gravity measurements to decide if their bespeak of sake can be faithfully resolved. Global-scale doubt assessment of tidal, oceanic, large-scale hydrological and atmospheric corrections for mundane hydrometry Resolving insidious gravity signals in the order of few nm/s2 is challenged by the statistical doubt of correction models Uncertainty computed for selected periods varies significantly with latitude and elevation of the gravi Keywords: Earth tides, atmosphere, gravity observations, hydrology, nontidal ocean loading ECCO Products Used: ECCO-KFS ; ECCO2URL: https://doi.org/10.1029/2018JB016682%0A Other URLs:
Storto, Andrea; Alvera-Azcárate, Aida; Balmaseda, Magdalena A.; Barth, Alexander; Chevallier, Matthieu; Counillon, Francois; Domingues, Catia M.; Drevillon, Marie; Drillet, Yann; Forget, Gaël; Garric, Gilles; Haines, Keith; Hernandez, Fabrice; Iovino, Doroteaciro; Jackson, Laura C.; Lellouche, Jean-Michel; Masina, Simona; Mayer, Michael; Oke, Peter R.; Penny, Stephen G.; Peterson, K. Andrew; Yang, Chunxue; Zuo, Hao (2019). Ocean Reanalyses: Recent Advances and Unsolved Challenges, Frontiers in Marine Science (6), 10.3389/fmars.2019.00418. Title: Ocean Reanalyses : late Advances and Unsolved Challenges Type: Journal article Publication: Frontiers in Marine Science Author(s): Storto, Andrea ; Alvera-Azcárate, Aida ; Balmaseda, Magdalena A. ; Barth, Alexander ; Chevallier, Matthieu ; Counillon, Francois ; Domingues, Catia M. ; Drevillon, Marie ; Drillet, Yann ; Forget, Gaël ; Garric, Gilles ; Haines, Keith ; Hernandez, Fabrice ; Iovino, Doroteaciro ; Jackson, Laura C. ; Lellouche, Jean-Michel ; Masina, Simona ; Mayer, Michael ; Oke, Peter R. ; Penny, Stephen G. ; Peterson, K. Andrew ; Yang, Chunxue ; Zuo, Hao Year: 2019 Formatted Citation: Storto, A. and Coauthors, 2019 : ocean Reanalyses : late Advances and Unsolved Challenges. Frontiers in Marine Science, 6, doi:10.3389/fmars.2019.00418 Abstract: Keywords: ECCO Products Used: ECCO-V4 ; ECCO2URL: https://www.frontiersin.org/article/10.3389/fmars.2019.00418/full Other URLs:
Doddridge, Edward W.; Meneghello, Gianluca; Marshall, John; Scott, Jeffery; Lique, Camille (2019). A Three-way Balance in The Beaufort Gyre: The Ice-Ocean Governor, Wind Stress, and Eddy Diffusivity, Journal of Geophysical Research: Oceans, 10.1029/2018JC014897. Title: A tripartite balance in The Beaufort Gyre : The Ice-Ocean Governor, Wind Stress, and Eddy Diffusivity Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Doddridge, Edward W. ; Meneghello, Gianluca ; Marshall, John ; Scott, Jeffery ; Lique, Camille Year: 2019 Formatted Citation: Doddridge, E. W., G. Meneghello, J. Marshall, J. Scott, and C. Lique, 2019 : A tripartite counterweight in The Beaufort Gyre : The Ice-Ocean Governor, Wind Stress, and Eddy Diffusivity. J. Geophys. Res. Ocean., doi:10.1029/2018JC014897 Abstract: The Beaufort Gyre ( BG ) is a large anticyclonic circulation in the Arctic Ocean. Its persuasiveness is directly related to the halocline depth, and therefore besides to the storage of fresh water. It has recently been proposed that the equilibrium state of the BG is set by the Ice-Ocean Governor, a negative feedback between open currents and ice-ocean stress, rather than a balance between lateral mesoscale eddy fluxes and come on Ekman pump. however, mesoscale eddies are present in the Arctic Ocean ; it is therefore important to extend the Ice-Ocean Governor hypothesis to include lateral fluxes due to mesoscale eddies. here, a non-linear ordinary differential equation is derived that represents the effects of fart try, the Ice-Ocean Governor, and eddy fluxes. equilibrium and time-varying solutions to this tripartite counterweight equation are obtained and shown to closely match the end product from a hierarchy of numerical simulations, indicating that the analytic model represents the processes controlling BG equilibration. The equilibration timescale derived from this tripartite libra is faster than the eddy equilibration timescale and slower than the Ice-Ocean Governor equilibration timescales for most values of eddy diffusivity. The sensitivity of the BG equilibrium depth to changes in eddy diffusivity and the presence of the Ice-Ocean Governor is besides explored. These results show that predicting the reaction of the BG to changing coat impel and sea ice conditions requires faithfully capturing the tripartite balance between the Ice-Ocean Governor, fart stress, and eddy fluxes. Keywords: ECCO Products Used: ECCO2URL: https://doi.org/10.1029/2018JC014897%0A Other URLs:
Wang, Zhaomin; Turner, John; Wu, Yang; Liu, Chengyan (2019). Rapid Decline of Total Antarctic Sea Ice Extent during 2014-16 Controlled by Wind-Driven Sea Ice Drift, Journal of Climate, 17 (32), 5381-5395, 10.1175/JCLI-D-18-0635.1. Title: Rapid Decline of Total Antarctic Sea Ice Extent during 2014-16 Controlled by Wind-Driven Sea Ice Drift Type: Journal article Publication: Journal of Climate Author(s): Wang, Zhaomin ; Turner, John ; Wu, Yang ; Liu, Chengyan Year: 2019 Formatted Citation: Wang, Z., J. Turner, Y. Wu, and C. Liu, 2019 : rapid Decline of Total Antarctic Sea Ice Extent during 2014-16 Controlled by Wind-Driven Sea Ice Drift. J. Clim., 32 ( 17 ), 5381-5395, doi:10.1175/JCLI-D-18-0635.1 Abstract: Between 2014 and 2016 the annual beggarly sum extent of Antarctic ocean methamphetamine decreased by a criminal record, unprecedented amount of 1.6 × 10 6 kilometer 2, the largest in a record start in the late 1970s. The mechanism behind such a rapid decrease remain nameless. Using the outputs of a high-resolution, ball-shaped ocean-sea methamphetamine model we show that the deepen was predominantly a leave of record atmospheric first gear press systems over sectors of the Southern Ocean in 2016, with the associate winds inducing strong ocean frosting drift. Regions of bombastic convinced and negative ocean ice extent anomaly were generated by both thermal and moral force effects of the wind anomalies. Although the strong wind coerce besides generated the warmest ocean come on express from April to December 2016, we show that enhanced north ocean ice drift and therefore increased melting at lower latitudes driven by strong winds made the dominant contribution to the large decrease in sum Antarctic ocean ice rink extent between 2014 and 2016. Keywords: ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/10.1175/JCLI-D-18-0635.1 Other URLs:
Erickson, Zachary K. (2019). Physical Processes Leading to Export of Fixed Carbon Out of the Surface Ocean. Title: Physical Processes Leading to Export of Fixed Carbon Out of the Surface Ocean Type: dissertation Publication: Author(s): Erickson, Zachary K. Year: 2019 Formatted Citation: Erickson, Z. K., 2019 : physical Processes Leading to Export of Fixed Carbon Out of the Surface Ocean. hypertext transfer protocol : //resolver.caltech.edu/CaltechTHESIS:06092019-160257514. Abstract: Keywords: ECCO Products Used: LLC_hiresURL: https://resolver.caltech.edu/CaltechTHESIS:06092019-160257514 Other URLs:
Ruan, Xiaozhou (2019). Oceanic Bottom Boundary Layers and Abyssal Overturning Circulation. Title: Oceanic Bottom Boundary Layers and Abyssal Overturning Circulation Type: dissertation Publication: Author(s): Ruan, Xiaozhou Year: 2019 Formatted Citation: Ruan, X., 2019 : oceanic Bottom Boundary Layers and Abyssal Overturning Circulation. Abstract: Keywords: ECCO Products Used: LLC_hires URL: Other URLs:
LIANG, QI; ZHOU, CHUNXIA; HOWAT, IAN M.; JEONG, SEONGSU; LIU, RUIXI; CHEN, YIMING (2019). Ice flow variations at Polar Record Glacier, East Antarctica, Journal of Glaciology (65). Title: Ice run variations at Polar Record Glacier, East Antarctica Type: Journal article Publication: Journal of Glaciology Author(s): LIANG, QI ; ZHOU, CHUNXIA ; HOWAT, IAN M. ; JEONG, SEONGSU ; LIU, RUIXI ; CHEN, YIMING Year: 2019 Formatted Citation: LIANG, Q., C. ZHOU, I. M. HOWAT, S. JEONG, R. LIU, and Y. CHEN, 2019 : Ice menstruate variations at Polar Record Glacier, East Antarctica. Journal of Glaciology, 65, hypertext transfer protocol : //doi.org/10.1017/jog.2019.6 % 0A Abstract: Keywords: ECCO Products Used: ECCO2URL: https://doi.org/10.1017/jog.2019.6%0A Other URLs:
O’Callaghan, B.; Chabchoub, A.; Waseda, T. (2019). Marine current energy in Eastern Australia: Evolution of currents and mesoscale anticyclonic eddies, Advances in Renewable Energies Offshore, 31-38. Title: Marine current energy in Eastern Australia : evolution of currents and mesoscale anticyclonic eddies Type: Book section Publication: Advances in renewable Energies Offshore Author(s): O’Callaghan, B. ; Chabchoub, A. ; Waseda, T. Year: 2019 Formatted Citation: O’Callaghan, B., A. Chabchoub, and T. Waseda, 2019 : Marine current energy in Eastern Australia : development of currents and mesoscale anticyclonic eddies. Advances in renewable Energies Offshore, Taylor & Francis Group, 31-38, hypertext transfer protocol : //books.google.com/books ? hl=en & lr= & id=YMp6DwAAQBAJ & oi=fnd & pg=PA31 & dq=ecco2+menemenlis & ots=78V-4WfRD_ & sig=N36qJ6EV-2lXg6fmpv_loylDAbo # v=twopage & q=ecco2 menemenlis & f=true Abstract: Keywords: ECCO Products Used: ECCO2URL: https://books.google.com/books?hl=en&lr=&id=YMp6DwAAQBAJ&oi=fnd&pg=PA31&dq=ecco2+menemenlis&ots=78V-4WfRD_&sig=N36qJ6EV-2lXg6fmpv_loylDAbo#v=twopage&q=ecco2 menemenlis&f=true Other URLs:
Ardhuin, Fabrice; Brandt, Peter; Gaultier, Lucile; Donlon, Craig; Battaglia, Alessandro; Boy, François; Casal, Tania; Chapron, Bertrand; Collard, Fabrice; Cravatte, Sophie; Delouis, Jean-Marc; De Witte, Erik; Dibarboure, Gerald; Engen, Geir; Johnsen, Harald; Lique, Camille; Lopez-Dekker, Paco; Maes, Christophe; Martin, Adrien; Marié, Louis; Menemenlis, Dimitris; Nouguier, Frederic; Peureux, Charles; Rampal, Pierre; Ressler, Gerhard; Rio, Marie-Helene; Rommen, Bjorn; Shutler, Jamie D.; Suess, Martin; Tsamados, Michel; Ubelmann, Clement; van Sebille, Erik; van den Oever, Martin; Stammer, Detlef (2019). SKIM, a Candidate Satellite Mission Exploring Global Ocean Currents and Waves, Frontiers in Marine Science (6), 10.3389/fmars.2019.00209. Title: SKIM, a Candidate Satellite Mission Exploring Global Ocean Currents and Waves Type: Journal article Publication: Frontiers in Marine Science Author(s): Ardhuin, Fabrice ; Brandt, Peter ; Gaultier, Lucile ; Donlon, Craig ; Battaglia, Alessandro ; Boy, François ; Casal, Tania ; Chapron, Bertrand ; Collard, Fabrice ; Cravatte, Sophie ; Delouis, Jean-Marc ; De Witte, Erik ; Dibarboure, Gerald ; Engen, Geir ; Johnsen, Harald ; Lique, Camille ; Lopez-Dekker, Paco ; Maes, Christophe ; Martin, Adrien ; Marié, Louis ; Menemenlis, Dimitris ; Nouguier, Frederic ; Peureux, Charles ; Rampal, Pierre ; Ressler, Gerhard ; Rio, Marie-Helene ; Rommen, Bjorn ; Shutler, Jamie D. ; Suess, Martin ; Tsamados, Michel ; Ubelmann, Clement ; avant-garde Sebille, Erik ; van hideout Oever, Martin ; Stammer, Detlef Year: 2019 Formatted Citation: Ardhuin, F. and Coauthors, 2019 : SKIM, a Candidate Satellite Mission Exploring Global Ocean Currents and Waves. Frontiers in Marine Science, 6, doi:10.3389/fmars.2019.00209 Abstract: Keywords: ECCO Products Used: LLC_hiresURL: https://www.frontiersin.org/article/10.3389/fmars.2019.00209/full Other URLs:
Peng, Qihua; Xie, Shang-Ping; Wang, Dongxiao; Zheng, Xiao-Tong; Zhang, Hong (2019). Coupled ocean-atmosphere dynamics of the 2017 extreme coastal El Niño, Nature Communications, 1 (10), 298, 10.1038/s41467-018-08258-8. Title: Coupled ocean-atmosphere dynamics of the 2017 extreme point coastal El Niño Type: Journal article Publication: Nature Communications Author(s): Peng, Qihua ; Xie, Shang-Ping ; Wang, Dongxiao ; Zheng, Xiao-Tong ; Zhang, Hong Year: 2019 Formatted Citation: Peng, Q., S. Xie, D. Wang, X. Zheng, and H. Zhang, 2019 : Coupled ocean-atmosphere dynamics of the 2017 extreme coastal El Niño. nature Communications, 10 ( 1 ), 298, doi:10.1038/s41467-018-08258-8 Abstract: In March 2017, ocean surface temperatures off Peru rose above 28 °C, causing torrential rains that affected the lives of millions of people. This coastal calefacient is highly unusual in that it took place with a weak La Niña state. Observations and ocean model experiments show that the downwelling Kelvin waves caused by strong westerly wind events over the equatorial Pacific, together with anomalous northerly coastal winds, are significant. atmospheric model experiments further show the anomalous coastal winds are forced by the coastal warming. Taken together, these results indicate a convinced feedback off Peru between the coastal warm, atmospheric deeply convection, and the coastal winds. These copulate processes provide predictability. indeed, initialized on equally early as 1 February 2017, seasonal worker prediction models captured the extreme rain event. Climate mannequin projections indicate that the frequency of extreme coastal El Niño will increase under global warm. Keywords: ECCO Products Used: ECCO-V4URL: https://doi.org/10.1038/s41467-018-08258-8 Other URLs:
Mason, Evan; Ruiz, Simón; Bourdalle-Badie, Romain; Reffray, Guillaume; García-Sotillo, Marcos; Pascual, Ananda (2019). New insight into 3-D mesoscale eddy properties from CMEMS operational models in the western Mediterranean, Ocean Science, 4 (15), 1111-1131, 10.5194/os-15-1111-2019. Title: New penetration into three-d mesoscale eddy properties from CMEMS functional models in the western Mediterranean Type: Journal article Publication: Ocean Science Author(s): Mason, Evan ; Ruiz, Simón ; Bourdalle-Badie, Romain ; Reffray, Guillaume ; García-Sotillo, Marcos ; Pascual, Ananda Year: 2019 Formatted Citation: Mason, E., S. Ruiz, R. Bourdalle-Badie, G. Reffray, M. García-Sotillo, and A. Pascual, 2019 : New insight into three-d mesoscale eddy properties from CMEMS operational models in the western Mediterranean. Ocean Science, 15 ( 4 ), 1111-1131, doi:10.5194/os-15-1111-2019 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://www.ocean-sci.net/15/1111/2019/ Other URLs:
Qiu, Bo; Chen, Shuiming; Powell, Brian; Colin, Patrick; Rudnick, Daniel; Schönau, Martha (2019). Nonlinear Short-Term Upper Ocean Circulation Variability in the Tropical Western Pacific, Oceanography, 4 (32), 22-31, 10.5670/oceanog.2019.408. Title: Nonlinear Short-Term Upper Ocean Circulation Variability in the Tropical Western Pacific Type: Journal article Publication: oceanography Author(s): Qiu, Bo ; Chen, Shuiming ; Powell, Brian ; Colin, Patrick ; Rudnick, Daniel ; Schönau, Martha Year: 2019 Formatted Citation: Qiu, B., S. Chen, B. Powell, P. Colin, D. Rudnick, and M. Schönau, 2019 : nonlinear short-run Upper Ocean Circulation Variability in the Tropical Western Pacific. Oceanography, 32 ( 4 ), 22-31, doi:10.5670/oceanog.2019.408 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://tos.org/oceanography/article/nonlinear-short-term-upper-ocean-circulation-variability-in-the-tropical-western-pacific Other URLs:
Yang, Haiyuan; Chang, Ping; Qiu, Bo; Zhang, Qiuying; Wu, Lixin; Chen, Zhaohui; Wang, Hong (2019). Mesoscale Air-Sea Interaction and Its Role in Eddy Energy Dissipation in the Kuroshio Extension, Journal of Climate, 24 (32), 8659-8676, 10.1175/JCLI-D-19-0155.1. Title: Mesoscale Air-Sea Interaction and Its Role in Eddy Energy Dissipation in the Kuroshio Extension Type: Journal article Publication: Journal of Climate Author(s): Yang, Haiyuan ; Chang, Ping ; Qiu, Bo ; Zhang, Qiuying ; Wu, Lixin ; Chen, Zhaohui ; Wang, Hong Year: 2019 Formatted Citation: Yang, H., P. Chang, B. Qiu, Q. Zhang, L. Wu, Z. Chen, and H. Wang, 2019 : Mesoscale Air-Sea Interaction and Its Role in Eddy Energy Dissipation in the Kuroshio Extension. J. Clim., 32 ( 24 ), 8659-8676, doi:10.1175/JCLI-D-19-0155.1 Abstract: Using the high-resolution Community Earth System Model ( CESM ) end product, this discipline investigates air-sea interaction and its function in eddy energy waste in the Kuroshio Extension ( KE ) area. Based on an eddy energetics analysis, it is found that the baroclinic pathway associated with temperature unevenness is the chief eddy energy reservoir in this region. Both the air-sea heat magnetic field and weave tension act as eddy killers that remove department of energy from oceanic eddies. Heat exchange between atmosphere and oceanic eddies dominates the waste of eddy temperature division within the surface layer and accounts for 36 % of the sum dissipation in the upper 350-m layer. Compared to the heating system rally, the function of weave ability in damping the eddy kinetic energy ( EKE ) is relatively minor. only 18 % of EKE waste in the upper 350 thousand is attributed to eddy weave power. misrepresentation of the damping character of mesoscale ocean-atmosphere interaction can result in an faulty vertical structure of eddy energy profligacy, leading to an erroneous theatrical performance of vertical desegregate in the interior ocean. Keywords: ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/10.1175/JCLI-D-19-0155.1 Other URLs:
Wu, Fan; Cornillon, Peter; Guan, Lei; Kilpatrick, Katherine (2019). Long-Term Variations in the Pixel-to-Pixel Variability of NOAA AVHRR SST Fields from 1982 to 2015, Remote Sensing, 7 (11), 844, 10.3390/rs11070844. Title: long-run Variations in the Pixel-to-Pixel Variability of NOAA AVHRR SST Fields from 1982 to 2015 Type: Journal article Publication: Remote Sensing Author(s): Wu, Fan ; Cornillon, Peter ; Guan, Lei ; Kilpatrick, Katherine Year: 2019 Formatted Citation: Wu, F., P. Cornillon, L. Guan, and K. Kilpatrick, 2019 : long-run Variations in the Pixel-to-Pixel Variability of NOAA AVHRR SST Fields from 1982 to 2015. Remote Sensing, 11 ( 7 ), 844, doi:10.3390/rs11070844 Abstract: Sea surface temperature ( SST ) fields obtained from the series of space-borne five-channel Advanced very high settlement Radiometers ( AVHRRs ) provide the longest continuous clock serial of ball-shaped SST available to go steady ( 1981-present ). As a result, these data have been used for many studies and significant campaign has been devoted to their careful calibration in an effort to provide a climate quality data record. however, little attention has been given to the local preciseness of the SST retrievals obtained from these instruments, which we refer to as the pixel-to-pixel ( p2p ) variability, a characteristic significant in the ability to resolve structures such as ocean fronts characterized by small gradients in the SST field. In this report, the p2p variability is estimated for Level-2 SST fields obtained with the Pathfinder recovery algorithm for AVHRRs on NOAA-07, 9, 11, 12 and 14-19. These estimates are stratified by year, season, day/night and along-scan/along-track. The overall unevenness ranges from 0.10 K to 0.21 K. For each satellite, the along-scan unevenness is between 10 and 20 % smaller than the along-track variability ( except for NOAA-16 night for which it is approximately 30 % smaller ) and the summer and fall σ second are between 10 and 15 % smaller than the winter and spring σ s. The differences between along-track and along-scan are attributed to the way in which the instrument has been calibrated. The seasonal worker differences result from the T 4 − T 5 term in the Pathfinder retrieval algorithm. This term is shown to be a major subscriber to the p2p variability and it is shown that its impingement could be well reduced without a deleterious consequence on the overall p2p σ of the resulting products by spatially averaging it as region of the retrieval process. The AVHRR/3s ( NOAA-15 through 19 ) were found to be relatively stable with trends in the p2p unevenness of at most 0.015 K/decade. Keywords: ECCO Products Used: LLC_hiresURL: https://www.mdpi.com/2072-4292/11/7/844 Other URLs:
Piecuch, C. G.; Calafat, F. M.; Dangendorf, S.; Jordà, G. (2019). The Ability of Barotropic Models to Simulate Historical Mean Sea Level Changes from Coastal Tide Gauge Data, Surveys in Geophysics, 6 (40), 1399-1435, 10.1007/s10712-019-09537-9. Title: The Ability of Barotropic Models to Simulate Historical Mean Sea Level Changes from Coastal Tide Gauge Data Type: Journal article Publication: Surveys in Geophysics Author(s): Piecuch, C. G. ; Calafat, F. M. ; Dangendorf, S. ; Jordà, G. Year: 2019 Formatted Citation: Piecuch, C. G., F. M. Calafat, S. Dangendorf, and G. Jordà, 2019 : The Ability of Barotropic Models to Simulate Historical Mean Sea Level Changes from Coastal Tide Gauge Data. Surveys in Geophysics, 40 ( 6 ), 1399-1435, doi:10.1007/s10712-019-09537-9 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: http://link.springer.com/10.1007/s10712-019-09537-9 Other URLs:
Wagner, Charlotte C.; Amos, Helen M.; Thackray, Colin P.; Zhang, Yanxu; Lundgren, Elizabeth W.; Forget, Gael; Friedman, Carey L.; Selin, Noelle E.; Lohmann, Rainer; Sunderland, Elsie M. (2019). A Global 3-D Ocean Model for PCBs: Benchmark Compounds for Understanding the Impacts of Global Change on Neutral Persistent Organic Pollutants, Global Biogeochemical Cycles, 3 (33), 469-481, 10.1029/2018GB006018. Title: A Global three-d Ocean Model for PCBs : Benchmark Compounds for Understanding the Impacts of Global Change on Neutral Persistent Organic Pollutants Type: Journal article Publication: Global Biogeochemical Cycles Author(s): Wagner, Charlotte C. ; Amos, Helen M. ; Thackray, Colin P. ; Zhang, Yanxu ; Lundgren, Elizabeth W. ; Forget, Gael ; Friedman, Carey L. ; Selin, Noelle E. ; Lohmann, Rainer ; Sunderland, Elsie M. Year: 2019 Formatted Citation: Wagner, C. C. and Coauthors, 2019 : A Global three-d Ocean Model for PCBs : Benchmark Compounds for Understanding the Impacts of Global Change on Neutral Persistent Organic Pollutants. Global Biogeochemical Cycles, 33 ( 3 ), 469-481, doi:10.1029/2018GB006018 Abstract: Keywords: biogeochemistry, destiny and transport model, ocean, persistent pollutants ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2018GB006018 Other URLs:
Huang, Thomas; DeBellis, Maya; Fenty, Ian; Heimbach, Patrick; Jacob, Joseph C.; Wang, Ou; Yam, Elizabeth (2019). Analytics Center Framework for Estimating the Circulation and Climate of the Ocean, IGARSS 2019 – 2019 IEEE International Geoscience and Remote Sensing Symposium, 5355-5358, 10.1109/IGARSS.2019.8897904. Title: Analytics Center Framework for Estimating the Circulation and Climate of the Ocean Type: Conference Proceedings Publication: IGARSS 2019 – 2019 IEEE International Geoscience and Remote Sensing Symposium Author(s): Huang, Thomas ; DeBellis, Maya ; Fenty, Ian ; Heimbach, Patrick ; Jacob, Joseph C. ; Wang, Ou ; Yam, Elizabeth Year: 2019 Formatted Citation: Huang, T., M. DeBellis, I. Fenty, P. Heimbach, J. C. Jacob, O. Wang, and E. Yam, 2019 : Analytics Center Framework for Estimating the Circulation and Climate of the Ocean. IGARSS 2019 – 2019 IEEE International Geoscience and Remote Sensing Symposium IEEE, 5355-5358 pp. doi:10.1109/IGARSS.2019.8897904. Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://ieeexplore.ieee.org/document/8897904/ Other URLs:
Chi, J; Du, Y; Zhang, Y; Nie, X; Shi, P; Qu, T (2019). A new perspective of the 2014/15 failed El Niño as seen from ocean salinity, Scientific Reports, 1 (9), 2720, 10.1038/s41598-019-38743-z. Title: A newfangled position of the 2014/15 failed El Niño as seen from ocean salt Type: Journal article Publication: Scientific Reports Author(s): Chi, J ; Du, Y ; Zhang, Y ; Nie, X ; Shi, P ; Qu, T Year: 2019 Formatted Citation: Chi, J., Y. Du, Y. Zhang, X. Nie, P. Shi, and T. Qu, 2019 : A new perspective of the 2014/15 failed El Niño as seen from ocean salt. Scientific Reports, 9 ( 1 ), 2720, doi:10.1038/s41598-019-38743-z Abstract: This study investigates the 2014/15 failed El Niño using salt from an ocean general circulation exemplar. The results indicate that subsurface processes were particularly strong in the summer of 2014 and they led to positive sea airfoil salt anomalies in the cardinal equatorial Pacific. The positivist sea surface salt anomalies induced a westward displacement of the sea coat salt front that represents the easterly limit of the western Pacific warm pool, preventing the warm surface water system from shifting eastbound as seen in a typical El Niño event. In the meanwhile, more piquant water was transported equatorward by a strengthening subtropical cell in the South Pacific. The enhanced subsurface processes in the central equatorial Pacific conveyed the salt anomalies of subtropical origin to the ocean coat and were largely creditworthy for the ocean coat salt variability but had less impacts on sea surface temperature during the 2014/15 failed El Niño, suggesting some electric potential advantage of ocean salt in the El Niño-Southern Oscillation prediction. Keywords: ECCO Products Used: ECCO-KFSURL: https://doi.org/10.1038/s41598-019-38743-z Other URLs:
Volkov, Denis L.; Lee, Sang-Ki; Domingues, Ricardo; Zhang, Hong; Goes, Marlos (2019). Interannual Sea Level Variability Along the Southeastern Seaboard of the United States in Relation to the Gyre-Scale Heat Divergence in the North Atlantic, Geophysical Research Letters, 13 (46), 7481-7490, 10.1029/2019GL083596. Title: Interannual Sea Level Variability Along the Southeastern Seaboard of the United States in Relation to the Gyre-Scale Heat Divergence in the North Atlantic Type: Journal article Publication: Geophysical Research Letters Author(s): Volkov, Denis L. ; Lee, Sang-Ki ; Domingues, Ricardo ; Zhang, Hong ; Goes, Marlos Year: 2019 Formatted Citation: Volkov, D. L., S. Lee, R. Domingues, H. Zhang, and M. Goes, 2019 : Interannual Sea Level Variability Along the Southeastern Seaboard of the United States in Relation to the Gyre-Scale Heat Divergence in the North Atlantic. Geophys. Res. Lett., 46 ( 13 ), 7481-7490, doi:10.1029/2019GL083596 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2019GL083596 Other URLs:
Zhang, Yanxu; Horowitz, Hannah; Wang, Jiancheng; Xie, Zhouqing; Kuss, Joachim; Soerensen, Anne L. (2019). A Coupled Global Atmosphere-Ocean Model for Air-Sea Exchange of Mercury: Insights into Wet Deposition and Atmospheric Redox Chemistry, Environmental Science & Technology, 9 (53), 5052-5061, 10.1021/acs.est.8b06205. Title: A Coupled Global Atmosphere-Ocean Model for Air-Sea Exchange of Mercury : Insights into Wet Deposition and Atmospheric Redox Chemistry Type: Journal article Publication: Environmental Science & Technology Author(s): Zhang, Yanxu ; Horowitz, Hannah ; Wang, Jiancheng ; Xie, Zhouqing ; Kuss, Joachim ; Soerensen, Anne L. Year: 2019 Formatted Citation: Zhang, Y., H. Horowitz, J. Wang, Z. Xie, J. Kuss, and A. L. Soerensen, 2019 : A coupled Global Atmosphere-Ocean Model for Air-Sea Exchange of Mercury : Insights into Wet Deposition and Atmospheric Redox Chemistry. Environmental Science & Technology, 53 ( 9 ), 5052-5061, doi:10.1021/acs.est.8b06205 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://pubs.acs.org/doi/10.1021/acs.est.8b06205 Other URLs:
Guo, Haihong; Chen, Zhaohui; Yang, Haiyuan (2019). Poleward Shift of the Pacific North Equatorial Current Bifurcation, Journal of Geophysical Research: Oceans, 7 (124), 4557-4571, 10.1029/2019JC015019. Title: Poleward Shift of the Pacific North Equatorial Current Bifurcation Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Guo, Haihong ; Chen, Zhaohui ; Yang, Haiyuan Year: 2019 Formatted Citation: Guo, H., Z. Chen, and H. Yang, 2019 : Poleward Shift of the Pacific North Equatorial Current Bifurcation. J. Geophys. Res. Ocean., 124 ( 7 ), 4557-4571, doi:10.1029/2019JC015019 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2019JC015019 Other URLs:
Sonnewald, Maike; Wunsch, Carl; Heimbach, Patrick (2019). Unsupervised Learning Reveals Geography of Global Ocean Dynamical Regions, Earth and Space Science, 5 (6), 784-794, 10.1029/2018EA000519. Title: Unsupervised Learning Reveals Geography of Global Ocean Dynamical Regions Type: Journal article Publication: Earth and Space Science Author(s): Sonnewald, Maike ; Wunsch, Carl ; Heimbach, Patrick Year: 2019 Formatted Citation: Sonnewald, M., C. Wunsch, and P. Heimbach, 2019 : Unsupervised Learning Reveals Geography of Global Ocean Dynamical Regions. Earth and Space Science, 6 ( 5 ), 784-794, doi:10.1029/2018EA000519 Abstract: Dynamically like regions of the global ocean are identified using a barotropic vorticity ( BV ) framework from a 20-year think of of the Estimating the Circulation and Climate of the Ocean state estimate at 1° resolution. An unsupervised car learning algorithm, K-means, objectively clusters the exchangeable BV equality, identifying five unequivocal regimes. Cluster 1 covers 43 ±Â 3.3 % of the ocean area. Surface and bottom stress torsion are balanced by the bottomland imperativeness torsion and the nonlinear torsion. Cluster 2 covers 24.8 ± 1.2 %, where the beta impression balances the bottom pressure torsion. Cluster 3 covers 14.6 ± 1.0 %, characterized by a “ Quasi-Sverdrupian ” regimen where the beta consequence is balanced by the wind and bottom stress term. The small region of Cluster 4 has baroclinic dynamics covering 6.9 ± 2.9 % of the ocean. Cluster 5 occurs primarily in the southerly Ocean. Residual “ dominantly nonlinear ” regions highlight where the BV approach path is inadequate, found in areas of grating topography in the southern Ocean and along western boundaries. Keywords: bad data, global patterns, machine learn, ocean dynamics, ocean model, physical oceanography ECCO Products Used: ECCO-V4 URL: Other URLs:
Khazendar, Ala; Fenty, Ian G.; Carroll, Dustin; Gardner, Alex; Lee, Craig M.; Fukumori, Ichiro; Wang, Ou; Zhang, Hong; Seroussi, Hélène; Moller, Delwyn; Noël, Brice P.Y.; van den Broeke, Michiel R.; Dinardo, Steven; Willis, Josh (2019). Interruption of two decades of Jakobshavn Isbrae acceleration and thinning as regional ocean cools, Nature Geoscience, 4 (12), 277-283, 10.1038/s41561-019-0329-3. Title: Interruption of two decades of Jakobshavn Isbrae acceleration and thin as regional ocean cools Type: Journal article Publication: Nature Geoscience Author(s): Khazendar, Ala ; Fenty, Ian G. ; Carroll, Dustin ; Gardner, Alex ; Lee, Craig M. ; Fukumori, Ichiro ; Wang, Ou ; Zhang, Hong ; Seroussi, Hélène ; Moller, Delwyn ; Noël, Brice P.Y. ; van hideout Broeke, Michiel R. ; Dinardo, Steven ; Willis, Josh Year: 2019 Formatted Citation: Khazendar, A. and Coauthors, 2019 : break of two decades of Jakobshavn Isbrae acceleration and thin as regional ocean cools. nature Geoscience, 12 ( 4 ), 277-283, doi:10.1038/s41561-019-0329-3 Abstract: Jakobshavn Isbrae has been the single largest source of mass loss from the Greenland Ice Sheet over the concluding 20 years. During that time, it has been retreating, accelerating and thinning. here we use airborne altimetry and satellite imagination to show that since 2016 Jakobshavn has been re-advancing, slowing and thickening. We link these changes to concurrent cool of ocean waters in Disko Bay that spill over into Ilulissat Icefjord. Ocean temperatures in the bay ‘s upper 250 m have cooled to levels not seen since the mid 1980s. Observations and modelling trace the origins of this cool to anomalous winter heat passing in the boundary current that circulates around the southern half of Greenland. Longer fourth dimension series of ocean temperature, subglacial exhaust and glacier variability powerfully suggest that ocean-induced thaw at the movement has continued to influence glacier dynamics after the disintegration of its floating tongue in 2003. We conclude that projections of Jakobshavn ‘s future contribution to low-lying lift that are based on glacier geometry are insufficient, and that accounting for external force is indispensable. Keywords: ECCO Products Used: ECCO-V4 ; LLC270 URL: Other URLs:
Dushaw, Brian D. (2019). Ocean Acoustic Tomography in the North Atlantic, Journal of Atmospheric and Oceanic Technology, 2 (36), 183-202, 10.1175/JTECH-D-18-0082.1. Title: Ocean Acoustic Tomography in the North Atlantic Type: Journal article Publication: Journal of Atmospheric and Oceanic Technology Author(s): Dushaw, Brian D. Year: 2019 Formatted Citation: Dushaw, B. D., 2019 : Ocean Acoustic Tomography in the North Atlantic. Journal of Atmospheric and Oceanic Technology, 36 ( 2 ), 183-202, doi:10.1175/JTECH-D-18-0082.1 Abstract: An objective map exercise simulating observations of temperature in the North Atlantic Ocean was used to assess the resolution capabilities of ocean acoustic imaging in combination with Argo floats. A set of basis functions for a basinwide area was obtained from a singular respect decay of a covariance derived from an ocean state appraisal. As demonstrated by the formal uncertainty estimates from the objective maps, Argo and imaging are complementary measurements. In several examples, each individually obtained uncertainty for determining large-scale monthly average temperature of approximately 50 % of prior ( resolved 75 % of discrepancy ), while when both data were employed, uncertainties were reduced to about 25 % of anterior ( resolved 94 % of division ). possible imaging configurations range from arrays that span particular regions to line arrays that supplement existing observations to arrays that span the Atlantic washbasin. A basinwide align consisting of two acoustic sources and seven receivers can be used to significantly reduce the uncertainties of estimated broad-scale temperature. An optimum detect system learn would comprise fake measurements in combination with data assimilation techniques and numerical ocean mold. This objective map analyze, however, showed that the summation of imaging to the existing observe system could well reduce the uncertainties for estimated large-scale temperature. To the extent that tomography offers a 50 % reduction in uncertainty at a fraction of the monetary value of the Argo broadcast, it is a cost-efficient contribution to the ocean observing system. Keywords: Acoustic measurements/effects, In situ oceanic observations, Ocean models, Optimization, Principal components analysis, Sensitivity studies ECCO Products Used: ECCO-V4URL: http://journals.ametsoc.org/doi/10.1175/JTECH-D-18-0082.1 Other URLs:
Amin, Hadi; Sjöberg, Lars E.; Bagherbandi, Mohammad (2019). A global vertical datum defined by the conventional geoid potential and the Earth ellipsoid parameters, Journal of Geodesy, 10 (93), 1943-1961, 10.1007/s00190-019-01293-3. Title: A global upright datum defined by the conventional geoid likely and the Earth ellipsoid parameters Type: Journal article Publication: Journal of Geodesy Author(s): Amin, Hadi ; Sjöberg, Lars E. ; Bagherbandi, Mohammad Year: 2019 Formatted Citation: Amin, H., L. E. Sjöberg, and M. Bagherbandi, 2019 : A global erect datum defined by the ceremonious geoid potential and the Earth ellipsoid parameters. Journal of Geodesy, 93 ( 10 ), 1943-1961, doi:10.1007/s00190-019-01293-3 Abstract: The geoid, according to the classical music Gauss-Listing definition, is, among infinite equipotential surfaces of the Earth ‘s gravity field, the equipotential surface that in a least squares sense best fits the undisturbed mean sea level. This equipotential surface, except for its zero-degree consonant, can be characterized using the Earth ‘s ball-shaped graveness models ( GGM ). Although, nowadays, satellite altimetry proficiency provides the absolute geoid height over oceans that can be used to calibrate the unknown zero-degree harmonic of the hydrometric geoid models, this technique can not be utilized to estimate the geometric parameters of the hateful Earth ellipsoid ( MEE ). The main objective of this discipline is to perform a joint estimate of W0, which defines the zero datum of vertical coordinates, and the MEE parameters relying on a new approach and on the newest gravity airfield, beggarly sea coat and mean moral force topography models. As our approach utilizes both satellite altimetry observations and a GGM model, we consider unlike aspects of the stimulation data to evaluate the sensitivity of our estimations to the input data. Unlike previous studies, our results show that it is not sufficient to use only the satellite-component of a quasi-stationary GGM to estimate W0. In accession, our results confirm a high sensitivity of the apply approach to the altimetry-based geoid heights, i.e., mean ocean surface and average dynamic topography models. furthermore, as W0 should be considered a quasi-stationary argument, we quantify the effect of time-dependent Earth ‘s graveness field changes a well as the time-dependent sea horizontal surface changes on the estimate of W0. Our computations resulted in the geoid potential W0 = 62636848.102 ± 0.004 m2 s−2 and the semi-major and minor axes of the MEE, a = 6378137.678 ± 0.0003 m and bel = 6356752.964 ± 0.0005 megabyte, which are 0.678 and 0.650 m larger than those axes of GRS80 citation ellipsoid, respectively. furthermore, a newfangled estimate for the geocentric gravitational changeless was obtained as GM = ( 398600460.55 ± 0.03 ) × 106 m3 s−2. Keywords: Geodetic reference arrangement, Geoid potential W0, Global vertical datum, Mean Earth ellipsoid, Reference ellipsoid ECCO Products Used: ECCO-V4 ; ECCO2URL: http://link.springer.com/10.1007/s00190-019-01293-3 Other URLs:
Kuhn, A. M.; Dutkiewicz, Stephanie; Jahn, O.; Clayton, S.; Rynearson, T. A.; Mazloff, M. R.; Barton, A. D. (2019). Temporal and Spatial Scales of Correlation in Marine Phytoplankton Communities, Journal of Geophysical Research: Oceans, 12 (124), 9417-9438, 10.1029/2019JC015331. Title: Temporal and Spatial Scales of Correlation in Marine Phytoplankton Communities Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Kuhn, A. M. ; Dutkiewicz, Stephanie ; Jahn, O. ; Clayton, S. ; Rynearson, T. A. ; Mazloff, M. R. ; Barton, A. D. Year: 2019 Formatted Citation: Kuhn, A. M., S. Dutkiewicz, O. Jahn, S. Clayton, T. A. Rynearson, M. R. Mazloff, and A. D. Barton, 2019 : temporal and spatial Scales of Correlation in Marine Phytoplankton Communities. J. Geophys. Res. Ocean., 124 ( 12 ), 9417-9438, doi:10.1029/2019JC015331 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2019JC015331 Other URLs:
Yang, Qinghua; Mu, Longjiang; Wu, Xingren; Liu, Jiping; Zheng, Fei; Zhang, Jinlun; Li, Chuanjin (2019). Improving Arctic sea ice seasonal outlook by ensemble prediction using an ice-ocean model, Atmospheric Research (227), 14-23, 10.1016/j.atmosres.2019.04.021. Title: Improving Arctic sea frosting seasonal mentality by corps de ballet prediction using an ice-ocean model Type: Journal article Publication: Atmospheric Research Author(s): Yang, Qinghua ; Mu, Longjiang ; Wu, Xingren ; Liu, Jiping ; Zheng, Fei ; Zhang, Jinlun ; Li, Chuanjin Year: 2019 Formatted Citation: Yang, Q., L. Mu, X. Wu, J. Liu, F. Zheng, J. Zhang, and C. Li, 2019 : Improving Arctic sea ice seasonal lookout by ensemble prediction using an ice-ocean model. Atmospheric Research, 227, 14-23, doi:10.1016/j.atmosres.2019.04.021 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://doi.org/10.1016/j.atmosres.2019.04.021%0A Other URLs: hypertext transfer protocol : //linkinghub.elsevier.com/retrieve/pii/S0169809518314406
Denvil-Sommer, Anna; Gehlen, Marion; Vrac, Mathieu; Mejia, Carlos (2019). LSCE-FFNN-v1: a two-step neural network model for the reconstruction of surface ocean p CO 2 over the global ocean, Geoscientific Model Development, 5 (12), 2091-2105, 10.5194/gmd-12-2091-2019. Title: LSCE-FFNN-v1 : a two-step neural network exemplary for the reconstruction of surface ocean p CO 2 over the ball-shaped ocean Type: Journal article Publication: Geoscientific Model Development Author(s): Denvil-Sommer, Anna ; Gehlen, Marion ; Vrac, Mathieu ; Mejia, Carlos Year: 2019 Formatted Citation: Denvil-Sommer, A., M. Gehlen, M. Vrac, and C. Mejia, 2019 : LSCE-FFNN-v1 : a two-step neural net model for the reconstruction of surface ocean p CO 2 over the ball-shaped ocean. Geoscientific Model Development, 12 ( 5 ), 2091-2105, doi:10.5194/gmd-12-2091-2019 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://www.geosci-model-dev-discuss.net/gmd-2018-247/ Other URLs: hypertext transfer protocol : //www.geosci-model-dev.net/12/2091/2019/
Wang, Jinbo; Fu, Lee-Lueng (2019). On the Long-Wavelength Validation of the Swot Karin Measurement, Journal of Atmospheric and Oceanic Technology, 10.1175/jtech-d-18-0148.1. Title: On the Long-Wavelength Validation of the Swot Karin Measurement Type: Journal article Publication: Journal of Atmospheric and Oceanic Technology Author(s): Wang, Jinbo ; Fu, Lee-Lueng Year: 2019 Formatted Citation: Wang, J., and L. Fu, 2019 : On the Long-Wavelength Validation of the Swot Karin Measurement. Journal of Atmospheric and Oceanic Technology, doi:10.1175/jtech-d-18-0148.1 Abstract: Keywords: ECCO Products Used: LLC_hires URL: Other URLs:
Jones, Daniel C.; Boland, Emma; Meijers, Andrew J.S.; Forget, Gael; Josey, Simon A.; Sallee, Jean-Baptiste; Shuckburgh, Emily (2019). Heat Distribution in the Southeast Pacific Is Only Weakly Sensitive to High-Latitude Heat Flux and Wind Stress, Journal of Geophysical Research: Oceans, 12 (124), 8647-8666, 10.1029/2019JC015460. Title: Heat Distribution in the Southeast Pacific Is only Weakly Sensitive to High-Latitude Heat Flux and Wind Stress Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Jones, Daniel C. ; Boland, Emma ; Meijers, Andrew J.S. ; Forget, Gael ; Josey, Simon A. ; Sallee, Jean-Baptiste ; Shuckburgh, Emily Year: 2019 Formatted Citation: Jones, D. C., E. Boland, A. J. Meijers, G. Forget, S. A. Josey, J. Sallee, and E. Shuckburgh, 2019 : Heat Distribution in the Southeast Pacific Is only Weakly Sensitive to High-Latitude Heat Flux and Wind Stress. J. Geophys. Res. Ocean., 124 ( 12 ), 8647-8666, doi:10.1029/2019JC015460 Abstract: Keywords: ECCO Products Used: ECCO-V4 ; adjointURL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2019JC015460 Other URLs:
Vinogradova, Nadya; Lee, Tong; Boutin, Jacqueline; Drushka, Kyla; Fournier, Severine; Sabia, Roberto; Stammer, Detlef; Bayler, Eric; Reul, Nicolas; Gordon, Arnold; Melnichenko, Oleg; Li, Laifang; Hackert, Eric; Martin, Matthew; Kolodziejczyk, Nicolas; Hasson, Audrey; Brown, Shannon; Misra, Sidharth; Lindstrom, Eric (2019). Satellite Salinity Observing System: Recent Discoveries and the Way Forward, Frontiers in Marine Science (6), 10.3389/fmars.2019.00243. Title: Satellite Salinity Observing system : late Discoveries and the Way Forward Type: Journal article Publication: Frontiers in Marine Science Author(s): Vinogradova, Nadya ; Lee, Tong ; Boutin, Jacqueline ; Drushka, Kyla ; Fournier, Severine ; Sabia, Roberto ; Stammer, Detlef ; Bayler, Eric ; Reul, Nicolas ; Gordon, Arnold ; Melnichenko, Oleg ; Li, Laifang ; Hackert, Eric ; Martin, Matthew ; Kolodziejczyk, Nicolas ; Hasson, Audrey ; Brown, Shannon ; Misra, Sidharth ; Lindstrom, Eric Year: 2019 Formatted Citation: Vinogradova, N. and Coauthors, 2019 : Satellite Salinity Observing system : recent Discoveries and the Way Forward. Frontiers in Marine Science, 6, doi:10.3389/fmars.2019.00243 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://www.frontiersin.org/article/10.3389/fmars.2019.00243/full Other URLs:
Chen, Jianli; Wilson, Clark R.; Kuang, Weijia; Chao, Benjamin F. (2019). Interannual Oscillations in Earth Rotation, Journal of Geophysical Research: Solid Earth, 12 (124), 13404-13414, 10.1029/2019JB018541. Title: Interannual Oscillations in Earth Rotation Type: Journal article Publication: Journal of Geophysical Research : solid earth Author(s): Chen, Jianli ; Wilson, Clark R. ; Kuang, Weijia ; Chao, Benjamin F. Year: 2019 Formatted Citation: Chen, J., C. R. Wilson, W. Kuang, and B. F. Chao, 2019 : Interannual Oscillations in Earth Rotation. Journal of Geophysical Research : solid Earth, 124 ( 12 ), 13404-13414, doi:10.1029/2019JB018541 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2019JB018541 Other URLs:
Ponsoni, Leandro; Massonnet, François; Fichefet, Thierry; Chevallier, Matthieu; Docquier, David (2019). On the timescales and length scales of the Arctic sea ice thickness anomalies: a study based on 14 reanalyses, The Cryosphere, 2 (13), 521-543, 10.5194/tc-13-521-2019. Title: On the timescales and duration scales of the Arctic ocean internal-combustion engine thickness anomalies : a analyze based on 14 reanalyses Type: Journal article Publication: The Cryosphere Author(s): Ponsoni, Leandro ; Massonnet, François ; Fichefet, Thierry ; Chevallier, Matthieu ; Docquier, David Year: 2019 Formatted Citation: Ponsoni, L., F. Massonnet, T. Fichefet, M. Chevallier, and D. Docquier, 2019 : On the timescales and duration scales of the Arctic ocean ice thickness anomalies : a study based on 14 reanalyses. Cryosph., 13 ( 2 ), 521-543, doi:10.5194/tc-13-521-2019 Abstract: Keywords: ECCO Products Used: ECCO-V4 ; GECCO2URL: https://www.the-cryosphere.net/13/521/2019/ Other URLs:
Nakayama, Yoshihiro; Manucharyan, Georgy; Zhang, Hong; Dutrieux, Pierre; Torres, Hector S.; Klein, Patrice; Seroussi, Helene; Schodlok, Michael; Rignot, Eric; Menemenlis, Dimitris (2019). Pathways of ocean heat towards Pine Island and Thwaites grounding lines, Scientific Reports, 1 (9), 16649, 10.1038/s41598-019-53190-6. Title: Pathways of ocean heat towards Pine Island and Thwaites grounding lines Type: Journal article Publication: Scientific Reports Author(s): Nakayama, Yoshihiro ; Manucharyan, Georgy ; Zhang, Hong ; Dutrieux, Pierre ; Torres, Hector S. ; Klein, Patrice ; Seroussi, Helene ; Schodlok, Michael ; Rignot, Eric ; Menemenlis, Dimitris Year: 2019 Formatted Citation: Nakayama, Y. and Coauthors, 2019 : Pathways of ocean hotness towards Pine Island and Thwaites grounding lines. Scientific Reports, 9 ( 1 ), 16649, doi:10.1038/s41598-019-53190-6 Abstract: Keywords: ECCO Products Used: LLC270 ; LLC_hiresURL: http://www.nature.com/articles/s41598-019-53190-6 Other URLs:
Qu, Tangdong; Fukumori, Ichiro; Fine, Rana A. (2019). Spin-up of the Southern Hemisphere Super Gyre, Journal of Geophysical Research: Oceans (124), 2018JC014391, 10.1029/2018JC014391. Title: Spin-up of the Southern Hemisphere Super Gyre Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Qu, Tangdong ; Fukumori, Ichiro ; Fine, Rana A. Year: 2019 Formatted Citation: Qu, T., I. Fukumori, and R. A. Fine, 2019 : Spin-up of the Southern Hemisphere Super Gyre. J. Geophys. Res. Ocean., 124, 2018JC014391, doi:10.1029/2018JC014391 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2018JC014391 Other URLs:
Storto, Andrea; Bonaduce, Antonio; Feng, Xiangbo; Yang, Chunxue (2019). Steric Sea Level Changes from Ocean Reanalyses at Global and Regional Scales, Water, 10 (11), 1987, 10.3390/w11101987. Title: Steric Sea Level Changes from Ocean Reanalyses at Global and Regional Scales Type: Journal article Publication: Water Author(s): Storto, Andrea ; Bonaduce, Antonio ; Feng, Xiangbo ; Yang, Chunxue Year: 2019 Formatted Citation: Storto, A., A. Bonaduce, X. Feng, and C. Yang, 2019 : Steric Sea Level Changes from Ocean Reanalyses at Global and Regional Scales. Water, 11 ( 10 ), 1987, doi:10.3390/w11101987 Abstract: Sea level has risen significantly in the recent decades and is expected to rise far based on holocene climate projections. Ocean reanalyses that synthetize data from observing networks, dynamic ocean general circulation models, and atmospheric wedge data offer an attractive way to evaluate sea degree course and unevenness and division the causes of such sea level changes at both global and regional scales. here, we review recent use of reanalyses for steric ocean level vogue investigations. State-of-the-science ocean reanalysis products are then used to further infer steric sea level changes. In particular, we used an ensemble of centennial reanalyses at mince spatial settlement ( between 0.5 × 0.5 and 1 × 1 degree ) and an ensemble of eddy-permitting reanalyses to quantify the trends and their doubt over the last hundred and the last two decades, respectively. All the datasets showed well performance in reproducing sea level changes. centennial reanalyses reveal a 1900-2010 swerve of steric sea charge equal to 0.47 ± 0.04 millimeter year−1, in agreement with previous studies, with unprecedented lift since the mid-1990s. During the altimetry era, the latest vintage of reanalyses is shown to outperform the former ones in terms of skill scores against the mugwump satellite data. They systematically reproduce ball-shaped and regional upper ocean steric expansion and the association with climate unevenness, such as ENSO. however, the multitude contribution to the ball-shaped intend sea tied resurrect is varying with products and its representability needs to be improved, vitamin a well as the contribution of deep and abyssal waters to the steric ocean level rise. similarly, high-resolution regional reanalyses for the European seas provide valuable data on ocean level trends, their patterns, and their causes. Keywords: ECCO Products Used: ECCO-KFS ; ECCO-V4URL: https://www.mdpi.com/2073-4441/11/10/1987 Other URLs:
Strehl, Anna-Marie (2019). Freshwater variability in the North Atlantic subpolar gyre from 1993 to 2016 based on ECCO reanalysis data. Title: Freshwater variability in the North Atlantic subpolar coil from 1993 to 2016 based on ECCO reanalysis data Type: thesis Publication: Author(s): Strehl, Anna-Marie Year: 2019 Formatted Citation: Strehl, A., 2019 : Freshwater variability in the North Atlantic subpolar coil from 1993 to 2016 based on ECCO reanalysis data. Abstract: Keywords: ECCO Products Used: ECCO-V4 URL: Other URLs:
WANG, Zhaomin; CHEN, Dake (2019). Polar climate system modeling in China: Recent progress and future challenges, Science China Earth Sciences, https://doi.org/10.1007/s11430-018-9355-2. Title: Polar climate system modeling in China : recent advance and future challenges Type: Journal article Publication: Science China Earth Sciences Author(s): WANG, Zhaomin ; CHEN, Dake Year: 2019 Formatted Citation: WANG, Z., and D. CHEN, 2019 : polar climate system modeling in China : holocene progress and future challenges. Science China Earth Sciences, department of the interior : hypertext transfer protocol : //doi.org/10.1007/s11430-018-9355-2 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://doi.org/10.1007/s11430-018-9355-2%0A Other URLs:
Wei, Jianfen; Zhang, Xiangdong; Wang, Zhaomin (2019). Reexamination of Fram Strait sea ice export and its role in recently accelerated Arctic sea ice retreat, Climate Dynamics, 10.1007/s00382-019-04741-0. Title: Reexamination of Fram Strait sea ice export and its character in recently accelerated Arctic sea ice retreat Type: Journal article Publication: Climate Dynamics Author(s): Wei, Jianfen ; Zhang, Xiangdong ; Wang, Zhaomin Year: 2019 Formatted Citation: Wei, J., X. Zhang, and Z. Wang, 2019 : follow-up of Fram Strait sea ice export and its function in recently accelerated Arctic sea ice retreat. Climate Dynamics, doi:10.1007/s00382-019-04741-0 Abstract: Keywords: Fram Strait, MITgcm-ECCO2, Regime lurch, Sea frost export ECCO Products Used: ECCO2URL: https://doi.org/10.1007/s00382-019-04741-0%0A Other URLs:
Carton, James A; Penny, Stephen G; Kalnay, Eugenia (2019). Temperature and Salinity Variability in the SODA3, ECCO4r3, and ORAS5 Ocean Reanalyses, 1993-2015, Journal of Climate, 8 (32), 2277-2293, 10.1175/JCLI-D-18-0605.1. Title: temperature and Salinity Variability in the SODA3, ECCO4r3, and ORAS5 Ocean Reanalyses, 1993-2015 Type: Journal article Publication: Journal of Climate Author(s): Carton, James A ; Penny, Stephen G ; Kalnay, Eugenia Year: 2019 Formatted Citation: Carton, J. A., S. G. Penny, and E. Kalnay, 2019 : temperature and Salinity Variability in the SODA3, ECCO4r3, and ORAS5 Ocean Reanalyses, 1993-2015. J. Clim., 32 ( 8 ), 2277-2293, doi:10.1175/JCLI-D-18-0605.1 Abstract: This study extends holocene ocean reanalysis comparisons to explore improvements to respective next-generation products, the simple Ocean Data Assimilation, version 3 ( SODA3 ) ; the Estimating the Circulation and Climate of the Ocean, version 4, release 3 ( ECCO4r3 ) ; and the Ocean Reanalysis System 5 ( ORAS5 ), during their 23-yr time period of overlap ( 1993-2015 ). The three reanalyses share like historic hydrographic data, but the forcings, ahead models, estimate algorithm, and bias correction methods are different. The study begins by comparing the reanalyses to mugwump analyses of historical SST, heat, and salt contentedness, deoxyadenosine monophosphate well as examining the analysis-minus-observation misfits. While the misfits are by and large minor, they still reveal some taxonomic biases that are not deliver in the character Hadley Center EN4 objective analysis. We next explore global trends in temperature averaged into three depth intervals : 0-300, 300-1000, and 1000-2000 m. We find considerable similarity in the spatial structure of the trends and their distribution among different ocean basins ; however, the trends in global averages do differ by 30 % -40 %, which implies an equivalent floor of disagreement in web surface heat rates. ECCO4r3 is distinct in having quite weak warming trends while ORAS5 has stronger trends that are noticeable in the deeper layers. To examine the operation of the reanalyses in the Arctic we explore representation of Atlantic Water unevenness on the Atlantic side of the Arctic and upper-halocline fresh water memory on the Pacific side of the Arctic. These comparisons are encouraging for the application of ocean reanalyses to track ocean climate variability and change at high northerly latitudes. Keywords: ECCO Products Used: ECCO-V4URL: https://doi.org/10.1175/JCLI-D-18-0605.1 Other URLs:
Fujii, Yosuke; Rémy, Elisabeth; Zuo, Hao; Oke, Peter; Halliwell, George; Gasparin, Florent; Benkiran, Mounir; Loose, Nora; Cummings, James; Xie, Jiping; Xue, Yan; Masuda, Shuhei; Smith, Gregory C.; Balmaseda, Magdalena; Germineaud, Cyril; Lea, Daniel J.; Larnicol, Gilles; Bertino, Laurent; Bonaduce, Antonio; Brasseur, Pierre; Donlon, Craig; Heimbach, Patrick; Kim, YoungHo; Kourafalou, Villy; Le Traon, Pierre-Yves; Martin, Matthew; Paturi, Shastri; Tranchant, Benoit; Usui, Norihisa (2019). Observing System Evaluation Based on Ocean Data Assimilation and Prediction Systems: On-Going Challenges and a Future Vision for Designing and Supporting Ocean Observational Networks, Frontiers in Marine Science (6), 10.3389/fmars.2019.00417. Title: Observing System Evaluation Based on Ocean Data Assimilation and Prediction Systems : ongoing Challenges and a future Vision for Designing and Supporting Ocean Observational Networks Type: Journal article Publication: Frontiers in Marine Science Author(s): Fujii, Yosuke ; Rémy, Elisabeth ; Zuo, Hao ; Oke, Peter ; Halliwell, George ; Gasparin, Florent ; Benkiran, Mounir ; Loose, Nora ; Cummings, James ; Xie, Jiping ; Xue, Yan ; Masuda, Shuhei ; Smith, Gregory C. ; Balmaseda, Magdalena ; Germineaud, Cyril ; Lea, Daniel J. ; Larnicol, Gilles ; Bertino, Laurent ; Bonaduce, Antonio ; Brasseur, Pierre ; Donlon, Craig ; Heimbach, Patrick ; Kim, YoungHo ; Kourafalou, Villy ; Le Traon, Pierre-Yves ; Martin, Matthew ; Paturi, Shastri ; Tranchant, Benoit ; Usui, Norihisa Year: 2019 Formatted Citation: Fujii, Y. and Coauthors, 2019 : Observing System Evaluation Based on Ocean Data Assimilation and Prediction Systems : ongoing Challenges and a future Vision for Designing and Supporting Ocean Observational Networks. Frontiers in Marine Science, 6, doi:10.3389/fmars.2019.00417 Abstract: Keywords: ECCO Products Used: ASTE ; ECCO-V4 ; ECCO2URL: https://www.frontiersin.org/article/10.3389/fmars.2019.00417/full Other URLs:
Xi, Hui; Zhang, Zizhan; Lu, Yang; Li, Yan (2019). Long-Term and Interannual Variation of the Steric Sea Level in the South China Sea and the Connection with ENSO, Journal of Coastal Research, 10.2112/JCOASTRES-D-18-00080.1. Title: Long-Term and Interannual Variation of the Steric Sea Level in the South China Sea and the connection with ENSO Type: Journal article Publication: Journal of Coastal Research Author(s): Xi, Hui ; Zhang, Zizhan ; Lu, Yang ; Li, Yan Year: 2019 Formatted Citation: Xi, H., Z. Zhang, Y. Lu, and Y. Li, 2019 : long-run and Interannual Variation of the Steric Sea Level in the South China Sea and the connection with ENSO. Journal of Coastal Research, doi:10.2112/JCOASTRES-D-18-00080.1 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: https://www.jcronline.org/doi/abs/10.2112/JCOASTRES-D-18-00080.1 Other URLs:
Gruszczynska, Marta; Rosat, Severine; Klos, Anna; Gruszczynski, Maciej; Bogusz, Janusz (2019). Multichannel Singular Spectrum Analysis in the Estimates of Common Environmental Effects Affecting GPS Observations, Geodynamics and Earth Tides Observations from Global to Micro Scale, 211-228, 10.1007/978-3-319-96277-1_17. Title: Multichannel Singular Spectrum Analysis in the Estimates of Common Environmental Effects Affecting GPS Observations Type: Book section Publication: Geodynamics and Earth Tides Observations from Global to Micro Scale Author(s): Gruszczynska, Marta ; Rosat, Severine ; Klos, Anna ; Gruszczynski, Maciej ; Bogusz, Janusz Year: 2019 Formatted Citation: Gruszczynska, M., S. Rosat, A. Klos, M. Gruszczynski, and J. Bogusz, 2019 : Multichannel Singular Spectrum Analysis in the Estimates of Common Environmental Effects Affecting GPS Observations. Geodynamics and Earth Tides Observations from Global to Micro Scale, Springer, 211-228, doi:10.1007/978-3-319-96277-1_17 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://doi.org/10.1007/978-3-319-96277-1_17 Other URLs: hypertext transfer protocol : //link.springer.com/10.1007/978-3-319-96277-1_17
Yang, Shengmu; Xing, Jiuxing; Sheng, Jinyu; Chen, Shengli; Chen, Daoyi (2019). A process study of interactions between a warm eddy and the Kuroshio Current in Luzon Strait: The fate of eddies, Journal of Marine Systems, 10.1016/j.jmarsys.2019.02.009. Title: A work survey of interactions between a warm eddy and the Kuroshio Current in Luzon Strait : The fortune of eddies Type: Journal article Publication: Journal of Marine Systems Author(s): Yang, Shengmu ; Xing, Jiuxing ; Sheng, Jinyu ; Chen, Shengli ; Chen, Daoyi Year: 2019 Formatted Citation: Yang, S., J. Xing, J. Sheng, S. Chen, and D. Chen, 2019 : A march learn of interactions between a warm eddy and the Kuroshio Current in Luzon Strait : The destiny of eddies. Journal of Marine Systems, doi:10.1016/j.jmarsys.2019.02.009 Abstract: Satellite observations reveal many mesoscale eddies in the West Pacific Ocean ( WPO ) that propagate westwards and finally interact with the Kuroshio Current. interrogation of global ocean and sea ice reanalysis data in years 2008-2015 suggests trajectories of these mesoscale eddies over the Kuroshio zone can be categorized into three different patterns : ~63 % of mesoscale eddies dissipating during the eddy-current interaction, ~33 % moving to the north along the Kuroshio and merely ~4 % passing through the Kuroshio and Luzon Strait ( LS ) to enter to the South China Sea ( SCS ). A cubic ocean circulation model based on the MIT General Circulation Model ( MITgcm ) is used to study the development of a westbound propagating mesoscale eddy during the eddy-current interaction. Thirteen numeric experiments are conducted with the circulation model driven by currents specified at the southern and northern open boundaries to represent the influence of the Kuroshio. A mesoscale eddy is initialized to the east of the Kuroshio and the model is integrated for 70 days in each experiment. Model results suggest that the northward-flowing Kuroshio Current and the seamount topography within LS form a barrier for the west propagating eddies to enter the South China Sea ( SCS ). Non-linear interactions between the Kuroshio Current, local topography and west propagating mesoscale eddies can generate localized eddies in LS which could be shed into the SCS. Furthermore, the eddy-current interaction is found to be one of mechanism for generating a multi-eddy social organization in LS region. Keywords: Eddy-current interaction, Luzon Strait, Mesoscale eddies, Numerical model, Process sketch, The Kuroshio Current ECCO Products Used: ECCO2URL: https://doi.org/10.1016/j.jmarsys.2019.02.009%0A Other URLs:
Tang, Yi; Stewart, Gillian (2019). The 210Po/210Pb method to calculate particle export: Lessons learned from the results of three GEOTRACES transects, Marine Chemistry (217), 103692, 10.1016/j.marchem.2019.103692. Title: The 210Po/210Pb method to calculate atom export : Lessons learned from the results of three GEOTRACES transects Type: Journal article Publication: Marine Chemistry Author(s): Tang, Yi ; Stewart, Gillian Year: 2019 Formatted Citation: Tang, Y., and G. Stewart, 2019 : The 210Po/210Pb method to calculate particle export : Lessons learned from the results of three GEOTRACES transects. Marine Chemistry, 217, 103692, doi:10.1016/j.marchem.2019.103692 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://linkinghub.elsevier.com/retrieve/pii/S0304420319300301 Other URLs:
Yang, Yang; Liang, X. San (2019). The intrinsic nonlinear multiscale interactions among the mean flow, low frequency variability and mesoscale eddies in the Kuroshio region, Science China Earth Sciences, 10.1007/s11430-018-9289-4. Title: The intrinsic nonlinear multiscale interactions among the mean flow, depleted frequency variability and mesoscale eddies in the Kuroshio area Type: Journal article Publication: Science China Earth Sciences Author(s): Yang, Yang ; Liang, X. San Year: 2019 Formatted Citation: Yang, Y., and X. S. Liang, 2019 : The intrinsic nonlinear multiscale interactions among the mean flow, low frequency unevenness and mesoscale eddies in the Kuroshio region. Science China Earth Sciences, doi:10.1007/s11430-018-9289-4 Abstract: Keywords: Baroclinic instability, Barotropic instability, Canonical transfer, Kuroshio, Multiscale energetics analysis, Multiscale interaction, Multiscale window transform ECCO Products Used: ECCO2URL: https://doi.org/10.1007/s11430-018-9289-4%0A Other URLs:
Flexas, M. Mar; Thompson, Andrew F.; Torres, Hector S.; Klein, Patrice; Farrar, J. Thomas; Zhang, Hong; Menemenlis, Dimitris (2019). Global Estimates of the Energy Transfer From the Wind to the Ocean, With Emphasis on Near-Inertial Oscillations, Journal of Geophysical Research: Oceans, 8 (124), 5723-5746, 10.1029/2018JC014453. Title: Global Estimates of the Energy Transfer From the Wind to the Ocean, With vehemence on Near-Inertial Oscillations Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Flexas, M. Mar ; Thompson, Andrew F. ; Torres, Hector S. ; Klein, Patrice ; Farrar, J. Thomas ; Zhang, Hong ; Menemenlis, Dimitris Year: 2019 Formatted Citation: Flexas, M. M., A. F. Thompson, H. S. Torres, P. Klein, J. T. Farrar, H. Zhang, and D. Menemenlis, 2019 : ball-shaped Estimates of the Energy Transfer From the Wind to the Ocean, With vehemence on Near-Inertial Oscillations. J. Geophys. Res. Ocean., 124 ( 8 ), 5723-5746, doi:10.1029/2018JC014453 Abstract: Keywords: ECCO Products Used: LLC_hiresURL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2018JC014453 Other URLs:
Penny, Stephen G.; Akella, Santha; Balmaseda, Magdalena A.; Browne, Philip; Carton, James A.; Chevallier, Matthieu; Counillon, Francois; Domingues, Catia; Frolov, Sergey; Heimbach, Patrick; Hogan, Patrick; Hoteit, Ibrahim; Iovino, Doroteaciro; Laloyaux, Patrick; Martin, Matthew J.; Masina, Simona; Moore, Andrew M.; de Rosnay, Patricia; Schepers, Dinand; Sloyan, Bernadette M.; Storto, Andrea; Subramanian, Aneesh; Nam, SungHyun; Vitart, Frederic; Yang, Chunxue; Fujii, Yosuke; Zuo, Hao; O’Kane, Terry; Sandery, Paul; Moore, Thomas; Chapman, Christopher C. (2019). Observational Needs for Improving Ocean and Coupled Reanalysis, S2S Prediction, and Decadal Prediction, Frontiers in Marine Science (6), 10.3389/fmars.2019.00391. Title: Observational Needs for Improving Ocean and Coupled Reanalysis, S2S Prediction, and Decadal Prediction Type: Journal article Publication: Frontiers in Marine Science Author(s): Penny, Stephen G. ; Akella, Santha ; Balmaseda, Magdalena A. ; Browne, Philip ; Carton, James A. ; Chevallier, Matthieu ; Counillon, Francois ; Domingues, Catia ; Frolov, Sergey ; Heimbach, Patrick ; Hogan, Patrick ; Hoteit, Ibrahim ; Iovino, Doroteaciro ; Laloyaux, Patrick ; Martin, Matthew J. ; Masina, Simona ; Moore, Andrew M. ; de Rosnay, Patricia ; Schepers, Dinand ; Sloyan, Bernadette M. ; Storto, Andrea ; Subramanian, Aneesh ; Nam, SungHyun ; Vitart, Frederic ; Yang, Chunxue ; Fujii, Yosuke ; Zuo, Hao ; O’Kane, Terry ; Sandery, Paul ; Moore, Thomas ; Chapman, Christopher C. Year: 2019 Formatted Citation: Penny, S. G. and Coauthors, 2019 : experimental Needs for Improving Ocean and Coupled Reanalysis, S2S Prediction, and Decadal Prediction. Frontiers in Marine Science, 6, doi:10.3389/fmars.2019.00391 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://www.frontiersin.org/article/10.3389/fmars.2019.00391/full Other URLs:
Zanna, Laure; Khatiwala, Samar; Gregory, Jonathan M; Ison, Jonathan; Heimbach, Patrick (2019). Global reconstruction of historical ocean heat storage and transport, Proceedings of the National Academy of Sciences, 4 (116), 1126 LP – 1131, 10.1073/pnas.1808838115. Title: Global reconstruction of diachronic ocean heat storage and tape drive Type: Journal article Publication: Proceedings of the National Academy of Sciences Author(s): Zanna, Laure ; Khatiwala, Samar ; Gregory, Jonathan M ; Ison, Jonathan ; Heimbach, Patrick Year: 2019 Formatted Citation: Zanna, L., S. Khatiwala, J. M. Gregory, J. Ison, and P. Heimbach, 2019 : global reconstruction of historic ocean heat storage and transport. Proceedings of the National Academy of Sciences, 116 ( 4 ), 1126 LP – 1131, doi:10.1073/pnas.1808838115 Abstract: Since the nineteenth century, rising greenhouse flatulence concentrations have caused the ocean to absorb most of the Earth ‘s excess heat and warm up. Before the 1990s, most ocean temperature measurements were above 700 m and consequently, insufficient for an accurate global estimate of ocean warming. We present a method acting to reconstruct ocean temperature changes with ball-shaped, full-depth ocean coverage, revealing warm of 436 ×1021 J since 1871. Our reconstruction, which agrees with other estimates for the well-observed menstruation, demonstrates that the ocean absorbed as much heat during 1921-1946 as during 1990-2015. Since the 1950s, up to one-half of overindulgence hotness in the Atlantic Ocean at midlatitudes has come from other regions via circulation-related changes in heat transport.Most of the surfeit energy stored in the climate system due to anthropogenetic greenhouse gasoline emissions has been taken up by the oceans, leading to thermal expansion and low-lying ascent. The oceans frankincense have an significant role in the Earth ‘s energy asymmetry. experimental constraints on future anthropogenetic warming critically depend on accurate estimates of by ocean heat content ( OHC ) change. We present a reconstruction of OHC since 1871, with ball-shaped coverage of the wide ocean depth. Our estimates combine timeseries of observe sea open temperatures with much longer historic coverage than those in the ocean interior together with a representation ( a Green ‘s routine ) of time-independent ocean transmit processes. For 1955-2017, our estimates are comparable with direct estimates made by infilling the available 3D time-dependent ocean temperature observations. We find that the ball-shaped ocean absorbed heat during this period at a rate of 0.30 ± 0.06 W/m2 in the upper 2,000 meter and 0.028 ± 0.026 W/m2 below 2,000 m, with big decadal fluctuations. The entire OHC deepen since 1871 is estimated at 436 ± 91 ×1021 J, with an addition during 1921-1946 ( 145 ± 62 ×1021 J ) that is a large as during 1990-2015. By comparing with address estimates, we besides infer that, during 1955-2017, improving to one-half of the Atlantic Ocean warming and thermosteric low-lying rise at humble latitudes to midlatitudes emerged due to heat convergence from changes in ocean transportation. Keywords: ECCO Products Used: ECCO-V2 ; adjointURL: http://www.pnas.org/content/116/4/1126.abstract Other URLs:
Manizza, Manfredi; Menemenlis, Dimitris; Zhang, Hong; Miller, Charles E. (2019). Modeling the Recent Changes in the Arctic Ocean CO 2 Sink (2006-2013), Global Biogeochemical Cycles, 10.1029/2018GB006070. Title: Modeling the late Changes in the Arctic Ocean CO 2 Sink ( 2006-2013 ) Type: Journal article Publication: Global Biogeochemical Cycles Author(s): Manizza, Manfredi ; Menemenlis, Dimitris ; Zhang, Hong ; Miller, Charles E. Year: 2019 Formatted Citation: Manizza, M., D. Menemenlis, H. Zhang, and C. E. Miller, 2019 : Modeling the recent Changes in the Arctic Ocean CO 2 Sink ( 2006-2013 ). ball-shaped Biogeochemical Cycles, doi:10.1029/2018GB006070 Abstract: Keywords: Arctic Ocean, biogeochemistry, carbon cycle, climate variety, polar oceans, sea-ice ECCO Products Used: ECCO2URL: https://doi.org/10.1029/2018GB006070%0A Other URLs:
Zhao, Zhongxiang; Wang, Jinbo; Menemenlis, Dimitris; Fu, Lee-Lueng; Chen, Shuiming; Qiu, Bo (2019). Decomposition of the multimodal multidirectional M 2 internal tide field, Journal of Atmospheric and Oceanic Technology, JTECH-D-19-0022.1, 10.1175/JTECH-D-19-0022.1. Title: Decomposition of the multimodal multidirectional M 2 inner tide field Type: Journal article Publication: Journal of Atmospheric and Oceanic Technology Author(s): Zhao, Zhongxiang ; Wang, Jinbo ; Menemenlis, Dimitris ; Fu, Lee-Lueng ; Chen, Shuiming ; Qiu, Bo Year: 2019 Formatted Citation: Zhao, Z., J. Wang, D. Menemenlis, L. Fu, S. Chen, and B. Qiu, 2019 : decomposition of the multimodal multidirectional M 2 inner tide field. Journal of Atmospheric and Oceanic Technology, JTECH-D-19-0022.1, doi:10.1175/JTECH-D-19-0022.1 Abstract: Keywords: ECCO Products Used: LLC_hiresURL: http://journals.ametsoc.org/doi/10.1175/JTECH-D-19-0022.1 Other URLs:
Pratt, Larry J.; Voet, Gunnar; Pacini, Astrid; Tan, Shuwen; Alford, Matthew H.; Carter, Glenn S.; Girton, James B.; Menemenlis, Dimitris (2019). Pacific Abyssal Transport and Mixing: Through the Samoan Passage versus around the Manihiki Plateau, Journal of Physical Oceanography, 6 (49), 1577-1592, 10.1175/JPO-D-18-0124.1. Title: Pacific Abyssal Transport and Mixing : Through the Samoan Passage versus around the Manihiki Plateau Type: Journal article Publication: Journal of Physical Oceanography Author(s): Pratt, Larry J. ; Voet, Gunnar ; Pacini, Astrid ; Tan, Shuwen ; Alford, Matthew H. ; Carter, Glenn S. ; Girton, James B. ; Menemenlis, Dimitris Year: 2019 Formatted Citation: Pratt, L. J., G. Voet, A. Pacini, S. Tan, M. H. Alford, G. S. Carter, J. B. Girton, and D. Menemenlis, 2019 : Pacific Abyssal Transport and Mixing : Through the Samoan Passage versus around the Manihiki Plateau. Journal of Physical Oceanography, 49 ( 6 ), 1577-1592, doi:10.1175/JPO-D-18-0124.1 Abstract: The main source feeding the abyssal circulation of the North Pacific is the deep, north menstruate of 5-6 Sverdrups ( Sv ; 1 Sv ≡ 10 6 meter 3 randomness −1 ) through the Samoan Passage. A recent field campaign has shown that this menstruation is hydraulically controlled and that it experiences hydraulic jumps accompanied by potent blend and dissipation concentrated near several deep sills. By our estimates, the diapycnal concentration magnetic field associated with this shuffle is well larger than the diapycnal flux across a typical isopycnal open extending over the abyssal North Pacific. According to historical hydrographic observations, a second source of abysmal water for the North Pacific is 2.3-2.8 Sv of the dense flow that is diverted around the Manihiki Plateau to the east, bypassing the Samoan Passage. This beltway menstruation is not confined to a channel and is consequently less probable to experience the impregnable mix that is associated with hydraulic transitions. The partition of blend between the two branches of the bass flow could therefore be relevant to the distribution of Pacific abyssal mixing. To gain insight into the factors that control the partition between these two branches, we develop an abyssal and equator-proximal extension of the “ island principle. ” Novel features include provisions for the presence of hydraulic jumps american samoa well as designation of an appropriate consolidation circuit for an abysmal level to the east of the island. evaluation of the corresponding circulation integral leads to a prediction of 0.4-2.4 Sv of bypass flow. The circulation integral clearly identifies waste and frictional drag effects within the Samoan Passage as all-important elements in partitioning the flow. Keywords: ECCO Products Used: LLC_hiresURL: http://journals.ametsoc.org/doi/10.1175/JPO-D-18-0124.1 Other URLs:
Tang, Yi; Lemaitre, Nolwenn; Castrillejo, Maxi; Roca-Martí, Montserrat; Masqué, Pere; Stewart, Gillian (2019). The export flux of particulate organic carbon derived from 210 Po/ 210 Pb disequilibria along the North Atlantic GEOTRACES GA01 transect: GEOVIDE cruise, Biogeosciences, 10.5194/bg-16-309-2019. Title: The export magnetic field of particulate organic carbon derived from 210 Po/ 210 Pb disequilibria along the North Atlantic GEOTRACES GA01 transect : GEOVIDE cruise Type: Journal article Publication: Biogeosciences Author(s): Tang, Yi ; Lemaitre, Nolwenn ; Castrillejo, Maxi ; Roca-Martí, Montserrat ; Masqué, Pere ; Stewart, Gillian Year: 2019 Formatted Citation: Tang, Y., N. Lemaitre, M. Castrillejo, M. Roca-Martí, P. Masqué, and G. Stewart, 2019 : The export flux of particulate organic carbon derived from 210 Po/ 210 Pb disequilibria along the North Atlantic GEOTRACES GA01 transect : GEOVIDE cruise. Biogeosciences, doi:10.5194/bg-16-309-2019 Abstract: The disequilibrium between 210Po natural process and 210Pb bodily process in seawater samples was determined along the GEOTRACES GA01 transect in the North Atlantic during the GEOVIDE cruise ( May-June 2014 ). A steady-state model was used to quantify vertical export of particulate 210Po. vertical advection was incorporated into one version of the model using time-averaged vertical speed, which had significant variation. This resulted in big uncertainties for the 210Po export flow in this model, suggesting that those calculations of 210Po export fluxes should be used with great worry. Despite the large uncertainties, there is no question that the deficits of 210Po in the iberian Basin and at the Greenland Shelf have been strongly affected by upright advection. Using the export flux of 210Po and the particulate organic carbon paper ( POC ) to 210Po proportion of total ( > 1µm ) particles, we determined the POC export fluxes along the transect. Both the magnitude and efficiency of the estimated POC export flux from the surface ocean varied spatially within our study region. Export fluxes of POC ranged from negligible to 10mmolCm−2d−1, with enhance POC export in the Labrador Sea. The cruise track was characterized by overall abject POC export relative to internet primary output ( export efficiency < 1 % -15 % ), but relatively high export efficiencies were seen in the basins where diatoms dominated the phytoplankton community. The particularly low export efficiencies in the iberian Basin, on the early hand, were explained by the laterality of smaller phytoplankton, such as cyanobacteria or coccolithophores. POC fluxes estimated from the 210Po∕210Pb and 234Th∕238U disequilibria agreed within a factor of 3 along the transect, with higher POC estimates generally derived from 234Th. The differences were attributed to integration timescales and the history of flower events. Keywords: ECCO Products Used: ECCO2URL: https://doi.org/10.5194/bg-16-309-2019%0A Other URLs:
Stewart, Andrew L.; Klocker, Andreas; Menemenlis, Dimitris (2019). Acceleration and Overturning of the Antarctic Slope Current by Winds, Eddies, and Tides, Journal of Physical Oceanography, 8 (49), 2043-2074, 10.1175/JPO-D-18-0221.1. Title: Acceleration and Overturning of the Antarctic Slope Current by Winds, Eddies, and Tides Type: Journal article Publication: Journal of Physical Oceanography Author(s): Stewart, Andrew L. ; Klocker, Andreas ; Menemenlis, Dimitris Year: 2019 Formatted Citation: Stewart, A. L., A. Klocker, and D. Menemenlis, 2019 : acceleration and Overturning of the Antarctic Slope Current by Winds, Eddies, and Tides. Journal of Physical Oceanography, 49 ( 8 ), 2043-2074, doi:10.1175/JPO-D-18-0221.1 Abstract: All exchanges between the exposed ocean and the Antarctic continental shelf must cross the Antarctic Slope Current ( ASC ). former studies indicate that these exchanges are powerfully influenced by mesoscale and tidal unevenness, yet the mechanism responsible for setting the ASC ‘s transportation and structure have received relatively fiddling attention. In this study the roles of winds, eddies, and tides in accelerating the ASC are investigated using a global ocean-sea internal-combustion engine pretense with identical high resolving power ( 1/48° grid spacing ). It is found that the circulation along the continental slope is accelerated both by coat stresses, ultimately sourced from the easterly winds, and by mesoscale eddy vorticity fluxes. At the continental shelf break, the ASC exhibits a narrow ( ~30-50 kilometer ), swift ( > 0.2 molarity sulfur −1 ) jet, coherent with in situ observations. In this jet the surface stress is well reduced, and may even vanish or be directed east, because the ocean surface amphetamine matches or exceeds that of the ocean ice. The shelfbreak jet is shown to be accelerated by tidal momentum advection, coherent with the phenomenon of tidal rectification. consequently, the inshore Ekman ecstasy vanishes and therefore the mean overturning circulation that steepens the Antarctic Slope Front ( ASF ) is primarily due to tidal acceleration. These findings imply that the circulation and bastardly overturn of the ASC are not merely determined by near-Antarctic winds, but besides depend crucially on sea ice breed, regionally-dependent mesoscale eddy activity over the continental slope, and the amplitude of tidal flows across the continental ledge fracture. Keywords: ECCO Products Used: LLC_hiresURL: http://journals.ametsoc.org/doi/10.1175/JPO-D-18-0221.1 Other URLs:
Mikolaj, Michal; Güntner, Andreas; Brunini, Claudio; Wziontek, Hartmut; Gende, Mauricio; Schröder, Stephan; Cassino, Augusto M.; Pasquaré, Alfredo; Reich, Marvin; Hartmann, Anne; Oreiro, Fernando A.; Pendiuk, Jonathan; Guarracino, Luis; Antokoletz, Ezequiel D. (2019). Hydrometeorological and gravity signals at the Argentine-German Geodetic Observatory (AGGO) in La Plata, Earth System Science Data, 4 (11), 1501-1513, 10.5194/essd-11-1501-2019. Title: Hydrometeorological and graveness signals at the Argentine-German Geodetic Observatory ( AGGO ) in La Plata Type: Journal article Publication: Earth System Science Data Author(s): Mikolaj, Michal ; Güntner, Andreas ; Brunini, Claudio ; Wziontek, Hartmut ; Gende, Mauricio ; Schröder, Stephan ; Cassino, Augusto M. ; Pasquaré, Alfredo ; Reich, Marvin ; Hartmann, Anne ; Oreiro, Fernando A. ; Pendiuk, Jonathan ; Guarracino, Luis ; Antokoletz, Ezequiel D. Year: 2019 Formatted Citation: Mikolaj, M. and Coauthors, 2019 : Hydrometeorological and graveness signals at the Argentine-German Geodetic Observatory ( AGGO ) in La Plata. earth System Science Data, 11 ( 4 ), 1501-1513, doi:10.5194/essd-11-1501-2019 Abstract: The Argentine-German Geodetic Observatory ( AGGO ) is one of the identical few sites in the Southern Hemisphere equipped with comprehensive up-to-date geodetic instrumentation. The use observation techniques are used for a wide-eyed image of geophysical applications. The datum put provides gravity clock series and selected gravity models together with the hydrometeorological monitor data of the lookout. These parameters are of great interest to the scientific community, e.g. for achieving accurate realization of mundane and celestial character frames. furthermore, the handiness of the hydrometeorological products is beneficial to inhabitants of the region as they allow for monitor of environmental changes and natural hazards including extreme events. The hydrological data fit is composed of time series of groundwater level, modelled and observed dirt moisture subject, dirty temperature, and physical territory properties and aquifer properties. The meteorologic time series include air temperature, humidity, coerce, wind focal ratio, solar radiation sickness, precipitation, and derived reference point evapotranspiration. These data products are extended by graveness models of hydrological, oceanic, La Plata estuary, and atmospheric effects. The quality of the provide meteorologic time series is tested via comparison to the two closest WMO ( World Meteorological Organization ) sites where data are available only in an deficient temporal resolution. The hydrological series are validated by comparing the respective forward-modelled gravity effects to independent graveness observations reduced up to a signal corresponding to local water storage variation. Most of the clock time series cover the time span between April 2016 and November 2018 with either no or only few missing datum points. The datum set is available at hypertext transfer protocol : //doi.org/10.5880/GFZ.5.4.2018.001 ( Mikolaj et al., 2018 ). Keywords: ECCO Products Used: ECCO-KFS ; ECCO2URL: https://www.earth-syst-sci-data.net/11/1501/2019/ Other URLs:
Alexander-Astiz Le Bras, Isabela; Sonnewald, Maike; Toole, John M. (2019). A Barotropic Vorticity Budget for the Subtropical North Atlantic Based on Observations, Journal of Physical Oceanography, 11 (49), 2781-2797, 10.1175/JPO-D-19-0111.1. Title: A Barotropic Vorticity Budget for the Subtropical North Atlantic Based on Observations Type: Journal article Publication: Journal of Physical Oceanography Author(s): Alexander-Astiz Le Bras, Isabela ; Sonnewald, Maike ; Toole, John M. Year: 2019 Formatted Citation: Alexander-Astiz Le Bras, I., M. Sonnewald, and J. M. Toole, 2019 : A Barotropic Vorticity Budget for the Subtropical North Atlantic Based on Observations. Journal of Physical Oceanography, 49 ( 11 ), 2781-2797, doi:10.1175/JPO-D-19-0111.1 Abstract: To labor truth the large-scale dynamic remainder of the North Atlantic subtropical coil with observations, a barotropic vorticity budget is constructed in the ECCO state appraisal and compared with hydrographic observations and wind instrument stress data products. The hydrographic dataset at the center of this employment is the A22 WOCE part, which lies along 66°W and creates a close volume with the North and South american coasts to its west. The planetal vorticity flux across A22 is quantified, providing a metric for the net meridional flow in the western subtropical coil. The wreathe stress force over the subtropical coil to the west and east of the A22 segment is calculated from several wind stress data products. These experimental budget terms are found to be coherent with an approximate barotropic Sverdrup balance in the easterly subtropical coil and are on the same order as budget terms in the ECCO state estimate. The ECCO vorticity budget is closed by bottom pressure torques in the westerly subtropical coil, which is consistent with previous studies. In sum, the analysis provides experimental grate truth for the North Atlantic subtropical vorticity balance and explores the seasonal unevenness of this balance for the first meter using the ECCO state estimate. This balance is found to hold on monthly time scales in ECCO, suggesting that the integrate subtropical coil responds to forcing through fast barotropic adjustment. Keywords: ECCO Products Used: ECCO-V4URL: http://journals.ametsoc.org/doi/10.1175/JPO-D-19-0111.1 Other URLs:
Jyoti, J.; Swapna, P.; Krishnan, R.; Naidu, C. V. (2019). Pacific modulation of accelerated south Indian Ocean sea level rise during the early 21st Century, Climate Dynamics, https://doi.org/10.1007/s00382-019-04795-0. Title: Pacific modulation of accelerated confederacy indian Ocean sea level arise during the early twenty-first hundred Type: Journal article Publication: Climate Dynamics Author(s): Jyoti, J. ; Swapna, P. ; Krishnan, R. ; Naidu, C. V. Year: 2019 Formatted Citation: Jyoti, J., P. Swapna, R. Krishnan, and C. V. Naidu, 2019 : Pacific modulation of accelerated south indian Ocean sea horizontal surface heighten during the early twenty-first Century. Climate Dynamics, department of the interior : hypertext transfer protocol : //doi.org/10.1007/s00382-019-04795-0 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://doi.org/10.1007/s00382-019-04795-0 Other URLs:
Hu, Shijian; Zhang, Ying; Feng, Ming; Du, Yan; Sprintall, Janet; Wang, Fan; Hu, Dunxin; Xie, Qiang; Chai, Fei (2019). Interannual to Decadal Variability of Upper-Ocean Salinity in the Southern Indian Ocean and the Role of the Indonesian Throughflow, Journal of Climate, 19 (32), 6403-6421, 10.1175/JCLI-D-19-0056.1. Title: Interannual to Decadal Variability of Upper-Ocean Salinity in the Southern Indian Ocean and the Role of the Indonesian Throughflow Type: Journal article Publication: Journal of Climate Author(s): Hu, Shijian ; Zhang, Ying ; Feng, Ming ; Du, Yan ; Sprintall, Janet ; Wang, Fan ; Hu, Dunxin ; Xie, Qiang ; Chai, Fei Year: 2019 Formatted Citation: Hu, S. and Coauthors, 2019 : Interannual to Decadal Variability of Upper-Ocean Salinity in the Southern Indian Ocean and the Role of the indonesian Throughflow. J. Clim., 32 ( 19 ), 6403-6421, doi:10.1175/JCLI-D-19-0056.1 Abstract: Variability of oceanic brininess, an index of the global hydrological cycle, plays an important character in the basin-scale ocean circulation. In this report, interannual to decadal variability of salt in the upper layer of the indian Ocean is investigated using Argo observations since 2004 and data assimilating model outputs ( 1992-2015 ). The southeastern indian Ocean shows the strongest interannual to decadal variability of upper-ocean salt in the indian Ocean. Westward propagation of salt anomalies along isopycnal surfaces is detected in the southern indian Ocean and attributed to zonal brininess advection anomalies associated with the indonesian Throughflow and the South Equatorial Current. Composite and salt budget analyses show that horizontal advection is a major subscriber to the interannual to decadal brininess variability of the southerly amerind Ocean, and the local air-sea fresh water flux plays a secondary role. The Pacific decadal oscillation ( PDO ) and El Niño-Southern Oscillation ( ENSO ) modulate the brininess variability in the southeastern indian Ocean, with first gear brininess anomalies occurring during the negative phases of the PDO and ENSO and high salt anomalies during their convinced phases. The indonesian Throughflow plays an necessity function in transmitting the PDO- and ENSO-related brininess signals into the indian Ocean. A statistical model is proposed based on the PDO index, which successfully predicts the southeastern indian Ocean salt unevenness with a lead time of 10 months. Keywords: ECCO Products Used: ECCO-V4URL: http://journals.ametsoc.org/doi/10.1175/JCLI-D-19-0056.1 Other URLs:
Ibarbalz, Federico M.; Henry, Nicolas; Brandão, Manoela C.; Martini, Séverine; Busseni, Greta; Byrne, Hannah; Coelho, Luis Pedro; Endo, Hisashi; Gasol, Josep M.; Gregory, Ann C.; Mahé, Frédéric; Rigonato, Janaina; Royo-Llonch, Marta; Salazar, Guillem; Sanz-Sáez, Isabel; Scalco, Eleonora; Soviadan, Dodji; Zayed, Ahmed A.; Zingone, Adriana; Labadie, Karine; Ferland, Joannie; Marec, Claudie; Kandels, Stefanie; Picheral, Marc; Dimier, Céline; Poulain, Julie; Pisarev, Sergey; Carmichael, Margaux; Pesant, Stéphane; Babin, Marcel; Boss, Emmanuel; Iudicone, Daniele; Jaillon, Olivier; Acinas, Silvia G.; Ogata, Hiroyuki; Pelletier, Eric; Stemmann, Lars; Sullivan, Matthew B.; Sunagawa, Shinichi; Bopp, Laurent; de Vargas, Colomban; Karp-Boss, Lee; Wincker, Patrick; Lombard, Fabien; Bowler, Chris; Zinger, Lucie; Acinas, Silvia G.; Babin, Marcel; Bork, Peer; Boss, Emmanuel; Bowler, Chris; Cochrane, Guy; de Vargas, Colomban; Follows, Mick; Gorsky, Gabriel; Grimsley, Nigel; Guidi, Lionel; Hingamp, Pascal; Iudicone, Daniele; Jaillon, Olivier; Kandels, Stefanie; Karp-Boss, Lee; Karsenti, Eric; Not, Fabrice; Ogata, Hiroyuki; Pesant, Stéphane; Poulton, Nicole; Raes, Jeroen; Sardet, Christian; Speich, Sabrina; Stemmann, Lars; Sullivan, Matthew B.; Sunagawa, Shinichi; Wincker, Patrick (2019). Global Trends in Marine Plankton Diversity across Kingdoms of Life, Cell, 5 (179), 1084-1097.e21, 10.1016/j.cell.2019.10.008. Title: Global Trends in Marine Plankton Diversity across Kingdoms of Life Type: Journal article Publication: Cell Author(s): Ibarbalz, Federico M. ; Henry, Nicolas ; Brandão, Manoela C. ; Martini, Séverine ; Busseni, Greta ; Byrne, Hannah ; Coelho, Luis Pedro ; Endo, Hisashi ; Gasol, Josep M. ; Gregory, Ann C. ; Mahé, Frédéric ; Rigonato, Janaina ; Royo-Llonch, Marta ; Salazar, Guillem ; Sanz-Sáez, Isabel ; Scalco, Eleonora ; Soviadan, Dodji ; Zayed, Ahmed A. ; Zingone, Adriana ; Labadie, Karine ; Ferland, Joannie ; Marec, Claudie ; Kandels, Stefanie ; Picheral, Marc ; Dimier, Céline ; Poulain, Julie ; Pisarev, Sergey ; Carmichael, Margaux ; Pesant, Stéphane ; Babin, Marcel ; Boss, Emmanuel ; Iudicone, Daniele ; Jaillon, Olivier ; Acinas, Silvia G. ; Ogata, Hiroyuki ; Pelletier, Eric ; Stemmann, Lars ; Sullivan, Matthew B. ; Sunagawa, Shinichi ; Bopp, Laurent ; de Vargas, Colomban ; Karp-Boss, Lee ; Wincker, Patrick ; Lombard, Fabien ; Bowler, Chris ; Zinger, Lucie ; Acinas, Silvia G. ; Babin, Marcel ; Bork, Peer ; Boss, Emmanuel ; Bowler, Chris ; Cochrane, Guy ; de Vargas, Colomban ; Follows, Mick ; Gorsky, Gabriel ; Grimsley, Nigel ; Guidi, Lionel ; Hingamp, Pascal ; Iudicone, Daniele ; Jaillon, Olivier ; Kandels, Stefanie ; Karp-Boss, Lee ; Karsenti, Eric ; not, Fabrice ; Ogata, Hiroyuki ; Pesant, Stéphane ; Poulton, Nicole ; Raes, Jeroen ; Sardet, Christian ; Speich, Sabrina ; Stemmann, Lars ; Sullivan, Matthew B. ; Sunagawa, Shinichi ; Wincker, Patrick Year: 2019 Formatted Citation: Ibarbalz, F. M. and Coauthors, 2019 : ball-shaped Trends in Marine Plankton Diversity across Kingdoms of Life. Cell, 179 ( 5 ), 1084-1097.e21, doi:10.1016/j.cell.2019.10.008 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://linkinghub.elsevier.com/retrieve/pii/S0092867419311249 Other URLs:
Nie, Xunwei; Gao, Shan; Wang, Fan; Chi, Jianwei; Qu, Tangdong (2019). Origins and pathways of the Pacific Equatorial Undercurrent identified by a simulated adjoint tracer, Journal of Geophysical Research: Oceans, ja (0), 10.1029/2018JC014212. Title: Origins and pathways of the Pacific Equatorial Undercurrent identified by a simulate adjoint tracer Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Nie, Xunwei ; Gao, Shan ; Wang, Fan ; Chi, Jianwei ; Qu, Tangdong Year: 2019 Formatted Citation: Nie, X., S. Gao, F. Wang, J. Chi, and T. Qu, 2019 : Origins and pathways of the Pacific Equatorial Undercurrent identified by a simulate adjoint tracer. J. Geophys. Res. Ocean., 0 ( ja ), doi:10.1029/2018JC014212 Abstract: The origins and pathways of the Pacific Equatorial Undercurrent ( EUC ) are investigated using a simulated adjoint tracer of the consortium Estimating the Circulation & Climate of the Ocean ( ECCO ). The main reservoir waters of the EUC, a well as their transit prison term and contributions, are identified. The zonal unevenness of the EUC body of water musical composition and the contributions from different pathways are besides estimated. Results show that the ratio of the EUC water coming from the tropics to that from extratropics is relatively stable ( 1 versus 4 ) along the equator, except in the westerly Pacific where extratropical body of water is more dominant. The chief consistency of extratropical water within the EUC are transported through the western boundary pathways ( WBPs ), while the percentage transported via the interior pathways ( IPs ) gradually increases toward the east. tropical water merges into the EUC chiefly through the Tropical Cells ( TCs ) with a larger helping through the northern side of the equator. Keywords: Pacific Equatorical Undercurrent, cells, model, pathway, source water, transit fourth dimension ECCO Products Used: AdjointURL: https://doi.org/10.1029/2018JC014212 Other URLs:
Piecuch, Christopher G; Thompson, Philip R; Ponte, Rui M; Merrifield, Mark A; Hamlington, Benjamin D (2019). What Caused Recent Shifts in Tropical Pacific Decadal Sea-Level Trends?, Journal of Geophysical Research: Oceans, 11 (124), 7575-7590, 10.1029/2019JC015339. Title: What Caused recent Shifts in Tropical Pacific Decadal Sea-Level Trends ? Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Piecuch, Christopher G ; Thompson, Philip R ; Ponte, Rui M ; Merrifield, Mark A ; Hamlington, Benjamin D Year: 2019 Formatted Citation: Piecuch, C. G., P. R. Thompson, R. M. Ponte, M. A. Merrifield, and B. D. Hamlington, 2019 : What Caused late Shifts in Tropical Pacific Decadal Sea-Level Trends ? J. Geophys. Res. Ocean., 124 ( 11 ), 7575-7590, doi:10.1029/2019JC015339 Abstract: Satellite altimetry reveals substantial decadal variability in sea grade ζ across the tropical Pacific during 1993-2015. An ocean state calculate that faithfully reproduces the observations is used to elucidate the origin of these low-frequency tropical Pacific ζ variations. analysis of the hydrostatic equality reveals that recent decadal ζ changes in the tropical Pacific are chiefly thermosteric in nature, related to changes in upper-ocean heat content. A wedge experiment performed with the numeral model suggests that anomalous scent stress was an crucial driver of the relevant inflame storage and thermosteric variation. Closed budget diagnostics further clarify that the wind-stress-related thermosteric ζ variation resulted from the joint actions of large-scale ocean advection and local anesthetic surface hotness flux, such that advection controlled the budget over shorter, intraseasonal to interannual time scales, and local anesthetic surface estrus flux density became increasingly influential at longer decadal periods. In particular, local airfoil heat flux was important in contributing to a holocene about-face of decadal ζ trends in the tropical Pacific. Contributions from local surface hotness flux partially chew over damping latent heating system flux tied to wind-stress-driven sea-surface-temperature variations. Keywords: decadal variability, low-lying change, low-lying variability, state of matter estimate, tropical Pacific ECCO Products Used: ECCO-V4URL: https://doi.org/10.1029/2019JC015339 Other URLs:
Klein, Patrice; Lapeyre, Guillaume; Siegelman, Lia; Qiu, Bo; Fu, Lee-Lueng; Torres, Hector; Su, Zhan; Menemenlis, Dimitris; Le Gentil, Sylvie (2019). Ocean-Scale Interactions From Space, Earth and Space Science, 2018EA000492, 10.1029/2018EA000492. Title: Ocean-Scale Interactions From space Type: Journal article Publication: Earth and Space Science Author(s): Klein, Patrice ; Lapeyre, Guillaume ; Siegelman, Lia ; Qiu, Bo ; Fu, Lee-Lueng ; Torres, Hector ; Su, Zhan ; Menemenlis, Dimitris ; Le Gentil, Sylvie Year: 2019 Formatted Citation: Klein, P. and Coauthors, 2019 : Ocean-Scale Interactions From Space. Earth and Space Science, 2018EA000492, doi:10.1029/2018EA000492 Abstract: Keywords: ECCO Products Used: LLC_hiresURL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2018EA000492 Other URLs:
Howe, Bruce M.; Miksis-Olds, Jennifer; Rehm, Eric; Sagen, Hanne; Worcester, Peter F.; Haralabus, Georgios (2019). Observing the Oceans Acoustically, Frontiers in Marine Science (6), 10.3389/fmars.2019.00426. Title: Observing the Oceans acoustically Type: Journal article Publication: Frontiers in Marine Science Author(s): Howe, Bruce M. ; Miksis-Olds, Jennifer ; Rehm, Eric ; Sagen, Hanne ; Worcester, Peter F. ; Haralabus, Georgios Year: 2019 Formatted Citation: Howe, B. M., J. Miksis-Olds, E. Rehm, H. Sagen, P. F. Worcester, and G. Haralabus, 2019 : Observing the Oceans Acoustically. Frontiers in Marine Science, 6, doi:10.3389/fmars.2019.00426 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://www.frontiersin.org/article/10.3389/fmars.2019.00426/full Other URLs:
Siegfried, Lydia; Schmidt, Martin; Mohrholz, Volker; Pogrzeba, Hans; Nardini, Pascal; Böttinger, Michael; Scheuermann, Gerik (2019). The tropical-subtropical coupling in the Southeast Atlantic from the perspective of the northern Benguela upwelling system, PLoS ONE, 10.1371/journal.pone.0210083. Title: The tropical-subtropical couple in the Southeast Atlantic from the perspective of the northern Benguela upwelling system Type: Journal article Publication: PLoS ONE Author(s): Siegfried, Lydia ; Schmidt, Martin ; Mohrholz, Volker ; Pogrzeba, Hans ; Nardini, Pascal ; Böttinger, Michael ; Scheuermann, Gerik Year: 2019 Formatted Citation: Siegfried, L., M. Schmidt, V. Mohrholz, H. Pogrzeba, Nardini, P., M. Böttinger, and G. Scheuermann, 2019 : The tropical-subtropical coupling in the Southeast Atlantic from the perspective of the northern Benguela upwelling system. PLoS ONE, doi:10.1371/journal.pone.0210083 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://doi.org/10.1371/journal.pone.0210083%0A Other URLs:
Wu, Quran; Zhang, Xuebin; Church, John A; Hu, Jianyu (2019). ENSO-Related Global Ocean Heat Content Variations, Journal of Climate, 1 (32), 45-68, 10.1175/JCLI-D-17-0861.1. Title: ENSO-Related Global Ocean Heat Content Variations Type: Journal article Publication: Journal of Climate Author(s): Wu, Quran ; Zhang, Xuebin ; Church, John A ; Hu, Jianyu Year: 2019 Formatted Citation: Wu, Q., X. Zhang, J. A. church, and J. Hu, 2019 : ENSO-Related Global Ocean Heat Content Variations. J. Clim., 32 ( 1 ), 45-68, doi:10.1175/JCLI-D-17-0861.1 Abstract: The modulation of the full-depth global integrated ocean heat message ( GOHC ) by El Niño-Southern Oscillation ( ENSO ) has been estimated in diverse studies. however, the quantitative results and the mechanism at cultivate remain uncertain. here, a dynamically consistent ocean country estimate is utilized to study the large-scale integrate heat contented variations during ENSO events for the global ocean. The full-depth GOHC exhibits a cool tendency during the top out and decaying phases of El Niño, which is a solution of the negative surface heat flux ( SHF ) anomaly in the tropics ( 30°S-30°N ), partially offset by the positive SHF anomaly at higher latitudes. The tropical SHF anomaly acts as a lag answer to damp the convergence of oceanic heat transport, which redistributes heat from the extratropics and the subsurface layers ( 100-440 m ) into the upper tropical oceans ( 0-100 molarity ) during the attack and extremum of El Niño. These results highlight the global nature of the oceanic estrus redistribution during ENSO events, equally well as how the redistribution process affects the full-depth GOHC. The meridional heat central across 30°S and 30°N is driven by ocean current anomalies, while multiple processes contribute to the upright heating system exchange across 100 megabyte simultaneously. Heat advection due to unbalance bulk transport is distinguished from the mass balanced one, with significant contributions from the meridional and zonal overrule cells being identified for the latter in the vertical direction. Results presented here have implications for monitoring the planetal department of energy budget and evaluating ENSO ‘s global imprints on ocean inflame content in different estimates. Keywords: ECCO Products Used: ECCO-V4URL: https://doi.org/10.1175/JCLI-D-17-0861.1 Other URLs:
Stanley, Geoffrey J. (2019). The exact geostrophic streamfunction for neutral surfaces, Ocean Modelling (138), 107-121, 10.1016/j.ocemod.2019.04.002. Title: The demand geostrophic streamfunction for achromatic surfaces Type: Journal article Publication: Ocean Modelling Author(s): Stanley, Geoffrey J. Year: 2019 Formatted Citation: Stanley, G. J., 2019 : The claim geostrophic streamfunction for impersonal surfaces. Ocean Modelling, 138, 107-121, doi:10.1016/j.ocemod.2019.04.002 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://linkinghub.elsevier.com/retrieve/pii/S1463500318302233 Other URLs:
Schulze Chretien, Lena M.; Speer, Kevin (2019). A Deep Eastern Boundary Current in the Chile Basin, Journal of Geophysical Research: Oceans, 1 (124), 27-40, 10.1029/2018JC014400. Title: A deep Eastern Boundary Current in the Chile Basin Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Schulze Chretien, Lena M. ; Speer, Kevin Year: 2019 Formatted Citation: Schulze Chretien, L. M., and K. Speer, 2019 : A deep Eastern Boundary Current in the Chile Basin. J. Geophys. Res. Ocean., 124 ( 1 ), 27-40, doi:10.1029/2018JC014400 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2018JC014400 Other URLs:
Jackson, L. C.; Dubois, C.; Forget, G.; Haines, K.; Harrison, M.; Iovino, D.; Köhl, A.; Mignac, D.; Masina, S.; Peterson, K. A.; Piecuch, C. G.; Roberts, C. D.; Robson, J.; Storto, A.; Toyoda, T.; Valdivieso, M.; Wilson, C.; Wang, Y.; Zuo, H. (2019). The Mean State and Variability of the North Atlantic Circulation: A Perspective From Ocean Reanalyses, Journal of Geophysical Research: Oceans, 12 (124), 9141-9170, 10.1029/2019JC015210. Title: The Mean State and Variability of the North Atlantic Circulation : A position From Ocean Reanalyses Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Jackson, L. C. ; Dubois, C. ; Forget, G. ; Haines, K. ; Harrison, M. ; Iovino, D. ; Köhl, A. ; Mignac, D. ; Masina, S. ; Peterson, K. A. ; Piecuch, C. G. ; Roberts, C. D. ; Robson, J. ; Storto, A. ; Toyoda, T. ; Valdivieso, M. ; Wilson, C. ; Wang, Y. ; Zuo, H. Year: 2019 Formatted Citation: Jackson, L. C. and Coauthors, 2019 : The Mean State and Variability of the North Atlantic Circulation : A position From Ocean Reanalyses. J. Geophys. Res. Ocean., 124 ( 12 ), 9141-9170, doi:10.1029/2019JC015210 Abstract: The experimental network around the North Atlantic has improved significantly over the last few decades with subsurface profiling floats and satellite observations and the late efforts to monitor the Atlantic Meridional Overturning Circulation ( AMOC ). These have shown decadal fourth dimension scale changes across the North Atlantic including in estrus content, heat transportation, and the circulation. however, there are still significant gaps in the experimental coverage. Ocean reanalyses integrate the observations with a dynamically consistent ocean model and can be used to understand the note changes. however, the ability of the reanalyses to represent the dynamics must besides be assessed. We use an ensemble of ball-shaped ocean reanalyses to examine the time mean country and interannual-decadal unevenness of the North Atlantic ocean since 1993. We assess how well the reanalyses are able to capture processes and whether any understand can be gained. In particular, we examine aspects of the circulation including convection, AMOC and coil strengths, and transports. We find that reanalyses show some consistency, in particular showing a weakening of the subpolar coil and AMOC at 50°N from the mid-1990s until at least 2009 ( related to decadal unevenness in previous studies ), a strengthen and then weaken of the AMOC at 26.5°N since 2000, and impacts of circulation changes on transports. These results agree with model studies and the AMOC observations at 26.5°N since 2005. We besides see less spread across the corps de ballet in AMOC force and mix layer depth, suggesting improvements as the experimental coverage has improved. Keywords: ECCO Products Used: ECCO-V4 ; GECCO2URL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2019JC015210 Other URLs:
Ding, Yang; Bao, Xianwen; Yao, Zhigang; Bi, Congcong; Wan, Kai; Bao, Min; Jiang, Zhipeng; Song, Jun; Gao, Jia (2019). Observational and model studies of synoptic current fluctuations in the Bohai Strait on the Chinese continental shelf, Ocean Dynamics, 10.1007/s10236-019-01247-5. Title: Observational and exemplar studies of synoptic current fluctuations in the Bohai Strait on the chinese continental shelf Type: Journal article Publication: Ocean Dynamics Author(s): Ding, Yang ; Bao, Xianwen ; Yao, Zhigang ; Bi, Congcong ; Wan, Kai ; Bao, Min ; Jiang, Zhipeng ; Song, Jun ; Gao, Jia Year: 2019 Formatted Citation: Ding, Y. and Coauthors, 2019 : experimental and model studies of synoptic current fluctuations in the Bohai Strait on the chinese continental shelf. Ocean Dynamics, doi:10.1007/s10236-019-01247-5 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://link.springer.com/10.1007/s10236-019-01247-5 Other URLs:
Springer, Anne; Karegar, Makan A.; Kusche, Jürgen; Keune, Jessica; Kurtz, Wolfgang; Kollet, Stefan (2019). Evidence of daily hydrological loading in GPS time series over Europe, Journal of Geodesy, 10 (93), 2145-2153, 10.1007/s00190-019-01295-1. Title: Evidence of casual hydrological load in GPS time series over Europe Type: Journal article Publication: Journal of Geodesy Author(s): Springer, Anne ; Karegar, Makan A. ; Kusche, Jürgen ; Keune, Jessica ; Kurtz, Wolfgang ; Kollet, Stefan Year: 2019 Formatted Citation: Springer, A., M. A. Karegar, J. Kusche, J. Keune, W. Kurtz, and S. Kollet, 2019 : testify of daily hydrological loading in GPS time series over Europe. Journal of Geodesy, 93 ( 10 ), 2145-2153, doi:10.1007/s00190-019-01295-1 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://link.springer.com/10.1007/s00190-019-01295-1 Other URLs:
Chi, Lequan (2019). Interannual Variability of the Gulf Stream. Title: Interannual Variability of the Gulf Stream Type: thesis Publication: Author(s): Chi, Lequan Year: 2019 Formatted Citation: Chi, L., 2019 : Interannual Variability of the Gulf Stream. hypertext transfer protocol : //search.proquest.com/openview/899c2de26752dc40ec46d70e40767843/1 ? pq-origsite=gscholar & cbl=18750 & diss=y. Abstract: Keywords: ECCO Products Used: ECCO-V4 ; ECCO2 ; GECCO2URL: https://search.proquest.com/openview/899c2de26752dc40ec46d70e40767843/1?pq-origsite=gscholar&cbl=18750&diss=y Other URLs:
Heimbach, Patrick; Fukumori, Ichiro; Hill, Christopher N.; Ponte, Rui M.; Stammer, Detlef; Wunsch, Carl; Campin, Jean-Michel; Cornuelle, Bruce; Fenty, Ian; Forget, Gaël; Köhl, Armin; Mazloff, Matthew; Menemenlis, Dimitris; Nguyen, An T.; Piecuch, Christopher; Trossman, David; Verdy, Ariane; Wang, Ou; Zhang, Hong (2019). Putting It All Together: Adding Value to the Global Ocean and Climate Observing Systems With Complete Self-Consistent Ocean State and Parameter Estimates, Frontiers in Marine Science (6), 55, 10.3389/fmars.2019.00055. Title: Putting It All together : Adding Value to the Global Ocean and Climate Observing Systems With complete self-consistent Ocean State and Parameter Estimates Type: Journal article Publication: Frontiers in Marine Science Author(s): Heimbach, Patrick ; Fukumori, Ichiro ; Hill, Christopher N. ; Ponte, Rui M. ; Stammer, Detlef ; Wunsch, Carl ; Campin, Jean-Michel ; Cornuelle, Bruce ; Fenty, Ian ; Forget, Gaël ; Köhl, Armin ; Mazloff, Matthew ; Menemenlis, Dimitris ; Nguyen, An T. ; Piecuch, Christopher ; Trossman, David ; Verdy, Ariane ; Wang, Ou ; Zhang, Hong Year: 2019 Formatted Citation: Heimbach, P. and Coauthors, 2019 : Putting It All together : Adding Value to the Global Ocean and Climate Observing Systems With complete self-consistent Ocean State and Parameter Estimates. Frontiers in Marine Science, 6, 55, doi:10.3389/fmars.2019.00055 Abstract: In 1999, the consortium for Estimating the Circulation and Climate of the Ocean ( ECCO ) set out to synthesize the hydrographic data collected by the World Ocean Circulation Experiment ( WOCE ) and satellite sea surface height measurements into a complete and coherent description of the ocean afforded by an ocean cosmopolitan circulation model. Twenty years later, the versatility of ECCO ‘s estimate framework enables production of global and regional ocean and sea-ice department of state estimates that incorporate not alone the initial suite of data and its successors, but closely all data streams available today. New observations include measurements from Argo floats, marine mammal-based hydrography, satellite retrievals of ocean bottom imperativeness and sea surface brininess, and ice-tethered profiler data in polar regions. The framework besides produces better estimates of unsealed inputs, including initial conditions, surface atmospheric state variables, and mixing parameters. The freely available department of state estimates and related efforts are property-conserving, allowing closed budget calculations that are a needed to detect, quantify, and understand the development of climate-relevant signals as mandated by the Coupled Model Intercomparison Project Phase 6 ( CMIP6 ) protocol. The solutions can be reproduced by users through planning of the underlying model and assimilation machinery. regional efforts have spun off that offer increased spatial resolution to better resolve relevant processes. Emerging focus of ECCO are on global sea degree change, in detail contributions from pivotal frost sheets, and the increased use of biogeochemical and ecosystem data to constrain ball-shaped cycles of carbon paper, nitrogen and oxygen. Challenges in the coming ten include provision of uncertainties, informing observing system design, globally increased resolution, and moving toward coupled worldly concern system appraisal with coherent momentum, heat and fresh water fluxes between the ocean, atmosphere, cryosphere and land. Keywords: Adjoint method, ECCO, Ocean circulation and climate, coupled earth system data acculturation, global ocean inverse model, ocean observations, optimum state of matter and argument estimate ECCO Products Used: ASTE ; ECCO-V4 ; ECCO2 ; SOSEURL: https://www.frontiersin.org/article/10.3389/fmars.2019.00055/full Other URLs:
Forget, Gaël; Ferreira, David (2019). Global ocean heat transport dominated by heat export from the tropical Pacific, Nature Geoscience, 1, 10.1038/s41561-019-0333-7. Title: Global ocean heating system transmit dominated by heat export from the tropical Pacific Type: Journal article Publication: Nature Geoscience Author(s): Forget, Gaël ; Ferreira, David Year: 2019 Formatted Citation: Forget, G., and D. Ferreira, 2019 : global ocean heating system transport dominated by inflame export from the tropical Pacific. Nature Geoscience, 1, doi:10.1038/s41561-019-0333-7 Abstract: Heat redistribution is one of the main mechanisms by which oceans regulate Earth ‘s climate. Analyses of ocean heat ecstasy tend to emphasize global-scale seawater pathways and concepts such as the great ocean conveyer belt out. however, it is the divergence or convergence of heat transport within an oceanic area, rather than the origin or address of seawater transiting through that area, that is most immediately relevant to Earth ‘s heat budget. hera we use a holocene gridded estimate of ocean heat conveyance to reveal the net effect on Earth ‘s hotness budget, the ‘effective ‘ ocean heat transport, by removing internal ocean heat loops that have obscured the interpretation of measurements. The resultant role demonstrates the overwhelm predominance of the tropical Pacific, which exports four times adenine much heat as is imported in the Atlantic and Arctic. It besides highlights the unique ability of the Atlantic and indian oceans to transport heat across the Equator-Northward and Southward, respectively. however, effective inter-ocean heat transports are smaller than expected, suggesting that global-scale seawater pathways play only a minor role in Earth ‘s heat budget. Keywords: Climate and Earth system model, Physical oceanography ECCO Products Used: URL: http://www.nature.com/articles/s41561-019-0333-7 Other URLs:
Min, Chao; Mu, Longjiang; Yang, Qinghua; Ricker, Robert; Shi, Qian; Han, Bo; Wu, Renhao; Liu, Jiping (2019). Sea ice export through the Fram Strait derived from a combined model and satellite data set, The Cryosphere, 12 (13), 3209-3224, 10.5194/tc-13-3209-2019. Title: Sea ice export through the Fram Strait derived from a combined exemplar and satellite data set Type: Journal article Publication: The Cryosphere Author(s): Min, Chao ; Mu, Longjiang ; Yang, Qinghua ; Ricker, Robert ; Shi, Qian ; Han, Bo ; Wu, Renhao ; Liu, Jiping Year: 2019 Formatted Citation: Min, C., L. Mu, Q. Yang, R. Ricker, Q. Shi, B. Han, R. Wu, and J. Liu, 2019 : Sea ice export through the Fram Strait derived from a combined exemplar and satellite data set. The Cryosphere, 13 ( 12 ), 3209-3224, doi:10.5194/tc-13-3209-2019 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://tc.copernicus.org/articles/13/3209/2019/ Other URLs:
Klein, E.; Duputel, Z.; Zigone, D.; Vigny, C.; Boy, J.-P.; Doubre, C.; Meneses, G. (2018). Deep Transient Slow Slip Detected by Survey GPS in the Region of Atacama, Chile, Geophysical Research Letters, 22 (45), 12,263-12,273, 10.1029/2018GL080613. Title: Deep Transient Slow Slip Detected by Survey GPS in the Region of Atacama, Chile Type: Journal article Publication: Geophysical Research Letters Author(s): Klein, E. ; Duputel, Z. ; Zigone, D. ; Vigny, C. ; Boy, J.-P. ; Doubre, C. ; Meneses, G. Year: 2018 Formatted Citation: Klein, E., Z. Duputel, D. Zigone, C. Vigny, J.-P. Boy, C. Doubre, and G. Meneses, 2018 : cryptic Transient Slow Slip Detected by Survey GPS in the Region of Atacama, Chile, Geophysical Research Letters, 45 ( 22 ), 12,263-12,273, department of the interior : 10.1029/2018GL080613 Abstract: We detected a long-run transient deformation signal between 2014 and 2016 in the Atacama region ( Chile ) using view Global Positioning System ( GPS ) observations. Over an ~150 kilometer along-strike area, view GPS measurements in 2014 and 2016 aberrant significantly from the interseismic drift estimated using former observations. This deviation from regular state distortion is spatially coherent and reveals a horizontal westward diverging gesture of respective centimeters, along with a significant uplift. It is confirmed by continuous measurements of recently installed GPS stations. We discard instrumental, hydrological, oceanic, or atmospheric load effects and show that the transient is probable due to deep decelerate slip in the transition partition of the subduction interface ( ~40- to 60-km depth ). In addition, day by day observations recorded by a continuous GPS post operating between 2002 and 2015 highlight similar transient signals in 2005 and 2009, suggesting a perennial form. Keywords: ECCO Products Used: ECCO-KFSURL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2018GL080613 Other URLs:
Zakem, Emily J.; Al-Haj, Alia; Church, Matthew J.; van Dijken, Gert L.; Dutkiewicz, Stephanie; Foster, Sarah Q.; Fulweiler, Robinson W.; Mills, Matthew M.; Follows, Michael J. (2018). Ecological control of nitrite in the upper ocean, Nature Communications, 1 (9), 1206, 10.1038/s41467-018-03553-w. Title: Ecological control condition of nitrite in the amphetamine ocean Type: Journal article Publication: Nature Communications Author(s): Zakem, Emily J. ; Al-Haj, Alia ; Church, Matthew J. ; van Dijken, Gert L. ; Dutkiewicz, Stephanie ; Foster, Sarah Q. ; Fulweiler, Robinson W. ; Mills, Matthew M. ; Follows, Michael J. Year: 2018 Formatted Citation: Zakem, E.J., A. Al-Haj, M.J. Church, G.L. vanguard Dijken, S. Dutkiewicz, S.Q. Foster, R.W. Fulweiler, M.M. Mills, and M.J. Follows, 2018, Ecological control of nitrite in the upper ocean, Nature Communications, 9 ( 1 ), 1206, department of the interior : 10.1038/s41467-018-03553-w Abstract: Microorganisms oxidize organic nitrogen to nitrate in a series of steps. Nitrite, an average product, accumulates at the basis of the sunlit layer in the subtropical ocean, forming a basal nitrite maximal, but can accumulate throughout the sunlit layer at higher latitudes. We model nitrifying chemoautotrophs in a marine ecosystem and attest that microbial community interactions can explain the nitrite distributions. Our theoretical model proposes that nitrite can accumulate to a higher concentration than ammonium because of differences in underlying oxidation-reduction chemistry and cell size between ammonia- and nitrite-oxidizing chemoautotrophs. Using ocean circulation models, we demonstrate that nitrifying microorganisms are excluded in the sunlit level when phytoplankton are nitrogen-limited, but thrive at depth when phytoplankton become light-limited, resulting in nitrite accumulation there. however, nitrifying microorganisms may coexist in the sunlit layer when phytoplankton are iron- or light-limited ( much in higher latitudes ). These results improve understanding of the controls on nitrification, and provide a framework for representing chemoautotrophs and their biogeochemical effects in ocean models. Keywords: ECCO Products Used: ECCO-V3URL: https://www.nature.com/articles/s41467-018-03553-w Other URLs:
Dutkiewicz, Stephanie; Hickman, Anna E.; Jahn, Oliver (2018). Modelling ocean-colour-derived chlorophyll a, Biogeosciences, 2 (15), 613-630, 10.5194/bg-15-613-2018. Title: Modelling ocean-colour-derived chlorophyll a Type: Journal article Publication: Biogeosciences Author(s): Dutkiewicz, Stephanie ; Hickman, Anna E. ; Jahn, Oliver Year: 2018 Formatted Citation: Dutkiewicz, S., A.E. Hickman, and O. Jahn, 2018 : Modelling ocean-colour-derived chlorophyll a, Biogeosciences, 15 ( 2 ), 613-630, department of the interior : 10.5194/bg-15-613-2018 Abstract: This article provides a proofread of concept for using a biogeochemical/ecosystem/optical exemplary with a radiative transfer component as a testing ground to explore aspects of ocean discolor. We focus here on the satellite ocean color chlorophyll a ( Chl a ) product provided by the often-used blue/green coefficient of reflection ratio algorithm. The model produces output that can be compared directly to the real-world ocean color remotely sensed coefficient of reflection. This model output can then be used to produce an ocean semblance satellite-like Chl a merchandise using an algorithm linking the blue versus green coefficient of reflection exchangeable to that used for the real earth. Given that the exemplary includes complete cognition of the ( model ) water constituents, optics and coefficient of reflection, we can explore uncertainties and their causes in this proxy for Chl a ( called derived Chl a in this newspaper ). We compare the deduce Chl a to the actual model Chl a field. In the model we find that the mean absolute bias due to the algorithm is 22 % between derived and actual Chl a. The real-world algorithm is found using coincident in situ measurement of Chl a and radiometry. We ask whether increased in situ measurements to train the algorithm would improve the algorithm, and find a desegregate consequence. There is a global overall improvement, but at the expense of some regions, particularly in lower latitudes where the biases addition. not amazingly, we find that region-specific algorithms provide a significant improvement, at least in the annual mean. however, in the model, we find that no matter how the algorithm coefficients are found there can be a temporal mismatch between the derived Chl a and the actual Chl a. These mismatches stem from temporal decoupling between Chl a and other optically crucial water constituents ( such as color dissolved constituent matter and detrital count ). The degree of decoupling differs regionally and over time. For example, in many highly seasonal worker regions, the time of knowledgeability and vertex of the spring bloom in the derive Chl a lags the actual Chl a by days and sometimes weeks. These results indicate that care should besides be taken when studying phenology through satellite-derived products of Chl a. This study besides reemphasizes that ocean-colour-derived Chl a is not the lapp as the real in situ Chl a. In fact the model derived Chl a compares better to real-world satellite-derived Chl a than the model actual Chl a. Modellers should keep this is thinker when evaluating model output signal with ocean colour Chl a and in especial when assimilating this product. Our goal is to illustrate the use of a numerical lab that ( a ) helps users of ocean colour, peculiarly modellers, gain far understanding of the products they use and ( b ) helps the ocean color residential district to explore other ocean coloring material products, their biases and uncertainties, ampere well as to aid in future algorithm growth. Keywords: ECCO Products Used: ECCO-V3URL: https://bg.copernicus.org/articles/15/613/2018/ Other URLs:
Pham, Anh L.D.; Ito, Takamitsu (2018). Formation and Maintenance of the GEOTRACES Subsurface-Dissolved Iron Maxima in an Ocean Biogeochemistry Model, Global Biogeochemical Cycles, 6 (32), 932-953, 10.1029/2017GB005852. Title: Formation and Maintenance of the GEOTRACES Subsurface-Dissolved Iron Maxima in an Ocean Biogeochemistry Model Type: Journal article Publication: Global Biogeochemical Cycles Author(s): Pham, Anh L.D. ; Ito, Takamitsu Year: 2018 Formatted Citation: Pham, A.L.D. and T. Ito, 2018 : formation and Maintenance of the GEOTRACES Subsurface-Dissolved Iron Maxima in an Ocean Biogeochemistry Model, Global Biogeochemical Cycles, 32 ( 6 ), 932-953, department of the interior : 10.1029/2017GB005852 Abstract: Recent GEOTRACES transects revealed basin-scale patterns of dissolve iron in the ball-shaped oceans, providing a singular opportunity to test numeric models and to improve our understand of the iron cycle. Subsurface maximum of dissolve iron in the upper ocean thermocline are observed in assorted transects, which can play an crucial role in regulating marine productiveness due to their proximity to the surface euphotic layer. An ocean biogeochemistry model with polished parameterizations of iron cycle is used to examine the mechanisms controlling the geological formation and sustenance of these subsurface utmost. The model includes the representation of three cast-iron sources including dust deposition, continental shelves, and hydrothermal vents. Two classes of constituent ligands are parameterized based on the dissolved organic matter and apparent oxygen utilization. Parameterizations of particle-dependent scavenge and desorption are included. Although the model still struggles in in full capturing the observed dissolved iron distribution, it starts reproducing some major features, particularly in the chief thermocline. A cortege of numerical sensitivity experiments suggests that the secrete of scavenged iron associated with sinking organic particles forms the subsurface-dissolved iron maximum in high-dust regions of the indian and Atlantic Oceans. In low-dust regions of the Pacific basin, the subsurface-dissolved cast-iron extremum are sustained by inputs from the continental shelves or hydrothermal vents. In all cases, subsurface ligands produced by the remineralization of organic particles retain the dissolved iron and play a central function in the maintenance of the subsurface maximum in our model. frankincense, the parameterization of subsurface ligands has a far-reaching shock on the representation of ball-shaped iron cycle and biological productiveness in ocean biogeochemistry models. Keywords: ECCO Products Used: ECCO-V3URL: https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2017GB005852 Other URLs:
Follett, Christopher L.; Dutkiewicz, Stephanie; Karl, David M.; Inomura, Keisuke; Follows, Michael J. (2018). Seasonal resource conditions favor a summertime increase in North Pacific diatom-diazotroph associations, The ISME Journal, 6 (12), 1543-1557, 10.1038/s41396-017-0012-x. Title: Seasonal resource conditions favor a summer increase in North Pacific diatom-diazotroph associations Type: Journal article Publication: The ISME Journal Author(s): Follett, Christopher L. ; Dutkiewicz, Stephanie ; Karl, David M. ; Inomura, Keisuke ; Follows, Michael J. Year: 2018 Formatted Citation: Follett, C.L., S. Dutkiewicz, D.M. Karl, K. Inomura, and M.J. Follows, 2018 : seasonal resource conditions favor a summer increase in North Pacific diatom-diazotroph associations, The ISME Journal, 12 ( 6 ), 1543-1557, department of the interior : 10.1038/s41396-017-0012-x Abstract: In the North Pacific Subtropical Gyre ( NPSG ), an annual pulsate of sinking organic carbon is observed at 4000m between July and August, driven by large diatoms found in association with nitrogen fix, heterocystous, cyanobacteria : Diatom-Diazotroph Associations ( DDAs ). here we ask what drives the bloom of DDAs and present a simplify trait-based model of subtropical phototroph populations driven by observe, monthly averaged, environmental characteristics. The ratio of resource supply rates favors nitrogen fixation year round. The proportional fitness of DDA traits is most competitive in early summer when the shuffle layer is shallow, solar irradiance is high, and phosphorus and iron are relatively abundant. Later in the season, as light saturation drops and phosphorus is depleted, the traits of small unicellular diazotrophs become more competitive. The competitive transition happens in August, at the time when the DDA export event occurs. This seasonal worker moral force is maintained when embedded in a more complex, global-scale, ecological exemplary, and provides predictions for the extent of the North Pacific DDA flower. The model provides a parsimonious and testable hypothesis for the stimulation of DDA blooms. Keywords: ECCO Products Used: ECCO-V3URL: https://www.nature.com/articles/s41396-017-0012-x Other URLs:
Srinivas, G.; Chowdary, Jasti S.; Gnanaseelan, C.; Prasad, K.V.S.R.; Karmakar, Ananya; Parekh, Anant (2018). Association between mean and interannual equatorial Indian Ocean subsurface temperature bias in a coupled model, Climate Dynamics, 5-6 (50), 1659-1673, 10.1007/s00382-017-3713-y. Title: Association between average and interannual equatorial indian Ocean subsurface temperature diagonal in a copulate model Type: Journal article Publication: Climate Dynamics Author(s): Srinivas, G. ; Chowdary, Jasti S. ; Gnanaseelan, C. ; Prasad, K.V.S.R. ; Karmakar, Ananya ; Parekh, Anant Year: 2018 Formatted Citation: Srinivas, G., J.S. Chowdary, C. Gnanaseelan, K.V.S.R Prasad, A. Karmakar, and A. Parekh, 2018 : Association between mean and interannual equatorial indian Ocean subsurface temperature diagonal in a conjugate exemplar, Climate Dynamics, 50 ( 5-6 ), 1659-1673, department of the interior : 10.1007/s00382-017-3713-y Abstract: In the present study the association between hateful and interannual subsurface temperature bias over the equatorial indian Ocean ( EIO ) is investigated during boreal summer ( June through September ; JJAS ) in the National Centers for Environmental Prediction ( NCEP ) Climate Forecast System ( CFSv2 ) hindcast. anomalously high subsurface warm bias ( greater than 3°C ) over the eastern EIO ( EEIO ) region is noted in CFSv2 during summer, which is higher compared to other parts of the tropical indian Ocean. Prominent eastward current bias in the upper berth 100 megabyte over the EIO region induced by anomalous prevailing westerly winds is chiefly responsible for subsurface temperature bias. The eastward currents transport warm water to the EEIO and is pushed down to subsurface due to downwelling. Thus biases in both horizontal and erect currents over the EIO region hold subsurface ardent bias. The evolution of systematic subsurface warm diagonal in the model shows strong interannual unevenness. These maximum subsurface warming episodes over the EEIO are chiefly associated with La Niña like forcing. potent convergence of first gear grade winds over the EEIO and Maritime continent enhanced the westbound tip bias over the EIO during maximal warming years. This low level convergence of hoist is induced by the bias in the gradient in the entail ocean tied pressure with plus bias over westerly EIO and negative bias over EEIO and parts of western Pacific. Consequently, changes in the atmospheric circulation associated with La Niña like conditions affected the ocean dynamics by modulating the stream bias thereby enhancing the subsurface affectionate bias over the EEIO. It is identified that EEIO subsurface warm is stronger when La Niña co-occurred with negative indian Ocean Dipole events as compared to La Niña merely years in the model. Ocean general circulation model ( OGCM ) experiments forced with CFSv2 winds intelligibly support our guess that ocean dynamics influenced by prevailing westerly winds bias is chiefly responsible for the strong subsurface warm bias over the EEIO. This study advocates the importance of understanding the ability of the models in representing the big scale air-sea interactions over the tropics and their impact on ocean biases for better monsoon prognosis. Keywords: ECCO Products Used: ECCO2URL: https://link.springer.com/article/10.1007%2Fs00382-017-3713-y Other URLs:
Chen, Yue-Liang; Yan, Chang-Xiang; Zhu, Jiang; Li, Yi-Neng (2018). Evaluation of a global eddy-permitting hybrid coordinate ocean model, Atmospheric and Oceanic Science, 4 (11), 345-351, 10.1080/16742834.2018.1490625. Title: Evaluation of a global eddy-permitting hybrid coordinate ocean model Type: Journal article Publication: Atmospheric and Oceanic Science Author(s): Chen, Yue-Liang ; Yan, Chang-Xiang ; Zhu, Jiang ; Li, Yi-Neng Year: 2018 Formatted Citation: Chen, Y-L., C-X. Yan, J. Zhu, Jiang, and Y-N. Li, 2018 : evaluation of a ball-shaped eddy-permitting hybrid coordinate ocean model, Atmospheric and Oceanic Science, 11 ( 4 ), 345-351, department of the interior : 10.1080/16742834.2018.1490625 Abstract: A historical run ( 1993-2014 ) of a ball-shaped, eddy-permitting, hybrid coordinate ocean model ( HYCOM ) is evaluated against observations. The authors evaluate respective metrics in the model, including the spatial distribution of sea surface temperature ( SST ), the zonally average seasonal worker bicycle of SST, the unevenness of the ocean level anomaly ( SLA ), the zonally and meridionally average temperature and brininess, and the equatorial undertide. It is found that the imitate seasonal cycle of SST is 0.2-0.8 stronger than observed at midlatitudes. The model SST is 0.29°C warm than the observed for the ball-shaped ocean. The structure of the subsurface temperature and salt is similar to the observed. furthermore, the variability of SLA exhibits the same convention as observed. The model equatorial undertide in the pacific ocean is weaker than observed, but stronger than the ECCO reanalysis merchandise. overall, the model can reproduce the large-scale ocean states, and is suitable for analyses seeking to better understand the dynamics and thermodynamics of the upper ocean, deoxyadenosine monophosphate well as ocean variability. Keywords: ECCO Products Used: ECCO-V3URL: https://www.tandfonline.com/doi/full/10.1080/16742834.2018.1490625 Other URLs:
Mohajerani, Yara; Velicogna, Isabella; Rignot, Eric (2018). Mass Loss of Totten and Moscow University Glaciers, East Antarctica, Using Regionally Optimized GRACE Mascons, Geophysical Research Letters, 14 (45), 7010-7018, 10.1029/2018GL078173. Title: Mass Loss of Totten and Moscow University Glaciers, East Antarctica, Using Regionally Optimized GRACE Mascons Type: Journal article Publication: Geophysical Research Letters Author(s): Mohajerani, Yara ; Velicogna, Isabella ; Rignot, Eric Year: 2018 Formatted Citation: Mohajerani, Y., I. Velicogna, and E. Rignot, 2018 : Mass Loss of Totten and Moscow University Glaciers, East Antarctica, Using Regionally Optimized GRACE Mascons, Geophysical Research Letters, 45 ( 14 ), 7010-7018, department of the interior : 10.1029/2018GL078173 Abstract: Totten and Moscow University glaciers, in the marine-based sector of East Antarctica, contain enough ice rink to raise sea level by 5 m. Obtaining accurate measurements of their mass libra is challenging owing to big area of the basins and the little batch balance signal compared to West Antarctic glaciers. here we employ a locally optimize work of Gravity Recovery and Climate Experiment ( GRACE ) harmonics to evaluate their mass balance wheel at the sub-basin scale and compare the results with multitude budget method ( MBM ) estimates using regional atmospheric climate model version 2.3 ( RACMO2.3 ) or Modèle Atmosphérique Régional adaptation 3.6.4 ( MAR3.6.4 ). The sub-basin mass passing estimate for April 2002 to November 2015 is 14.8 ± 4.3 Gt/yr, which is decrepit affected by frigid isostatic adjustment uncertainties ( ±1.4 Gt/yr ). This result agrees with MBM/RACMO2.3 ( 15.8 ± 2.0 Gt/yr ), whereas MBM/MAR3.6.4 underestimates the personnel casualty ( 6.6 ± 1.6 Gt/yr ). For the entire drain, the bulk loss for April 2002 to August 2016 is 18.5 ± 6.6 Gt/yr, or 15 ± 4 % of its ice flux. These results provide unequivocal evidence for mass loss in this East Antarctic sector. Keywords: ECCO Products Used: ECCO-V3URL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2018GL078173 Other URLs:
Wei, Na; Shi, Chuang; Wang, Guangxing; Liu, Jingnan (2018). Improved estimations of low-degree coefficients using GPS displacements with reduced non-loading errors, Geophysical Journal International, 2 (212), 1274-1287, 10.1093/gji/ggx357. Title: Improved estimations of low-degree coefficients using GPS displacements with reduce non-loading errors Type: Journal article Publication: Geophysical Journal International Author(s): Wei, Na ; Shi, Chuang ; Wang, Guangxing ; Liu, Jingnan Year: 2018 Formatted Citation: Wei, N., C. Shi, G. Wang, and J. Liu, 2018 : Improved estimations of low-degree coefficients using GPS displacements with reduce non-loading errors. Geophysical Journal International, 212 ( 2 ), 1274-1287, doi:10.1093/gji/ggx357 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: https://academic.oup.com/gji/article/212/2/1274/4103545 Other URLs:
Wunsch, Carl (2018). Towards determining uncertainties in global oceanic mean values of heat, salt, and surface elevation, Tellus A: Dynamic Meteorology and Oceanography, 1 (70), 1-14, 10.1080/16000870.2018.1471911. Title: Towards determining uncertainties in global oceanic beggarly values of inflame, salt, and surface acme Type: Journal article Publication: Tellus A : Dynamic Meteorology and Oceanography Author(s): Wunsch, Carl Year: 2018 Formatted Citation: Wunsch, C., 2018 : Towards determining uncertainties in global oceanic beggarly values of estrus, salt, and surface elevation. Tellus A : Dynamic Meteorology and Oceanography, 70 ( 1 ), 1-14, doi:10.1080/16000870.2018.1471911 Abstract: Lower-bounds on uncertainties in oceanic data and a exemplar are calculated for the 20-year meter means and their worldly development for oceanic temperature, salt, and ocean surface acme, during the data-dense time interval 1994-2013. The substantive step of separating stochastic from systematic or deterministic elements of the fields is explored by suppressing the globally correlative components of the fields. Justification lies in the physics and the brevity of a 20-year estimate relative to the entire oceanic allowance time, and the deduce near-linearity of response on short prison term intervals. Lower-bound uncertainties reflecting the only stochastic elements of the state estimate are then calculated from bootstrap estimates. Trends are estimated as 2:2 6 0:2 mm=y in acme, 0.0011 ± 0.0001 C/y, and ( 2.825 ± 0.17 ) 10 5 for surface elevation, temperature and salt, with dinner dress 2-standard deviation uncertainties. The temperature transfer corresponds to a 20-year average ocean heating rate of 0:4860:1 W/m2 of which 0.1 W/m2 arises from the geothermal storm. systematic errors must be determined individually. Keywords: ECCO Products Used: ECCO-V4URL: https://www.tandfonline.com/doi/full/10.1080/16000870.2018.1471911 Other URLs:
Lamona, Bernawis; Hauck, Judith; Völker, Christoph (2018). Evaluation of a global ocean general circulation model; The Lat-Lon-Cap (LLC90) configuration of the MITgcm, IOP Conference Series: Earth and Environmental Science (162), 012002, 10.1088/1755-1315/162/1/012002. Title: Evaluation of a global ocean general circulation model ; The Lat-Lon-Cap ( LLC90 ) shape of the MITgcm Type: Journal article Publication: IOP Conference Series : earth and Environmental Science Author(s): Lamona, Bernawis ; Hauck, Judith ; Völker, Christoph Year: 2018 Formatted Citation: Lamona, B., J. Hauck, and C. Völker, 2018 : evaluation of a ball-shaped ocean general circulation model ; The Lat-Lon-Cap ( LLC90 ) configuration of the MITgcm. IOP Conference Series : earth and Environmental Science, 162, 012002, doi:10.1088/1755-1315/162/1/012002 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: http://stacks.iop.org/1755-1315/162/i=1/a=012002?key=crossref.88383fb38f74a617a151d716605f73df Other URLs:
Mouyen, Maxime; Longuevergne, Laurent; Steer, Philippe; Crave, Alain; Lemoine, Jean-Michel; Save, Himanshu; Robin, Cécile (2018). Assessing modern river sediment discharge to the ocean using satellite gravimetry, Nature Communications, 1 (9), 3384, 10.1038/s41467-018-05921-y. Title: Assessing modern river sediment discharge to the ocean using satellite hydrometry Type: Journal article Publication: Nature Communications Author(s): Mouyen, Maxime ; Longuevergne, Laurent ; Steer, Philippe ; Crave, Alain ; Lemoine, Jean-Michel ; Save, Himanshu ; Robin, Cécile Year: 2018 Formatted Citation: Mouyen, M., L. Longuevergne, P. Steer, A. Crave, J. Lemoine, H. Save, and C. Robin, 2018 : Assessing modern river sediment free to the ocean using satellite hydrometry. nature Communications, 9 ( 1 ), 3384, doi:10.1038/s41467-018-05921-y Abstract: Keywords: ECCO Products Used: ECCO2URL: http://www.nature.com/articles/s41467-018-05921-y Other URLs:
Lambert, Erwin; Eldevik, Tor; Spall, Michael A. (2018). On the Dynamics and Water Mass Transformation of a Boundary Current Connecting Alpha and Beta Oceans, Journal of Physical Oceanography, 10 (48), 2457-2475, 10.1175/JPO-D-17-0186.1. Title: On the Dynamics and Water Mass Transformation of a Boundary Current Connecting Alpha and Beta Oceans Type: Journal article Publication: Journal of Physical Oceanography Author(s): Lambert, Erwin ; Eldevik, Tor ; Spall, Michael A. Year: 2018 Formatted Citation: Lambert, E., T. Eldevik, and M. A. Spall, 2018 : On the Dynamics and Water Mass Transformation of a Boundary Current Connecting Alpha and Beta Oceans. Journal of Physical Oceanography, 48 ( 10 ), 2457-2475, doi:10.1175/JPO-D-17-0186.1 Abstract: A subpolar marginal sea, like the Nordic seas, is a transition zone between the temperature-stratified subtropics ( the alpha ocean ) and the salinity-stratified diametric regions ( the beta ocean ). An inflow of Atlantic Water circulates these seas as a limit current that is cooled and freshened downstream, finally to outflow as Deep and Polar Water. stratification in the boundary area is dominated by a thermocline over the continental gradient and a halocline over the continental shelves, separating atlantic Water from Deep and Polar Water, respectively. A conceptual model is introduced for the circulation and water mass transformation in a subpolar fringy ocean to explore the electric potential interaction between the alpha and beta oceans. Freshwater remark into the ledge regions has a rebuff strengthening effect on the Atlantic inflow, but more prominently impacts the water mass composition of the outflow. This affect of fresh water, characterized by enhancing polar Water outflow and suppressing deep Water escape, is strongly determined by the reference placement of fresh water. concretely, perturbations in upstream fresh water sources, like the Baltic fresh water escape into the Nordic seas, have an club of magnitude larger potential to impact water mass transports than perturbations in downriver sources like the Arctic fresh water spring. These boundary current dynamics are directly related to the qualitative stratification in passage zones and illustrate the interaction between the alpha and beta oceans. Keywords: ECCO Products Used: ECCO-V4URL: http://journals.ametsoc.org/doi/10.1175/JPO-D-17-0186.1 Other URLs:
Choi, Youngmin; Morlighem, Mathieu; Wood, Michael; Bondzio, Johannes H. (2018). Comparison of four calving laws to model Greenland outlet glaciers, The Cryosphere, 12 (12), 3735-3746, 10.5194/tc-12-3735-2018. Title: Comparison of four calving laws to model Greenland exit glaciers Type: Journal article Publication: The Cryosphere Author(s): Choi, Youngmin ; Morlighem, Mathieu ; Wood, Michael ; Bondzio, Johannes H. Year: 2018 Formatted Citation: Choi, Y., M. Morlighem, M. Wood, and J. H. Bondzio, 2018 : Comparison of four calving laws to model Greenland exit glaciers. Cryosph., 12 ( 12 ), 3735-3746, doi:10.5194/tc-12-3735-2018 Abstract: Calving is an crucial mechanism that controls the dynamics of marine terminating glaciers of Greenland. Iceberg calving at the terminus affects the integral tension government of exit glaciers, which may lead to far retreat and ice flow acceleration. It is consequently critical to accurately parameterize calving in frosting sheet models in orderliness to improve the projections of frosting sheet change over the coming decades and reduce the doubt in their contribution to low-lying rise. several calving laws have been proposed, but most of them have been applied lone to a specific region and have not been tested on other glaciers, while some others have only been implemented in 1-D flowline or vertical flowband models. here, we test and compare respective calving laws recently proposed in the literature using the Ice Sheet System Model ( ISSM ). We test these calving laws on nine tidewater glaciers of Greenland. We compare the model ice presence development to the observe retreat from Landsat data collected over the by 10 years, and buttocks which calving law has better predictive abilities for each glacier. Overall, the von Mises ductile stress calving law is more satisfactory than other laws for simulating note ice front withdraw, but new parameterizations that better capture the different modes of calving should be developed. Although the final positions of ice fronts are different for prognosis simulations with different calving laws, our results confirm that ice front man retreat highly depends on bed topography, regardless of the calve law employed. This discipline besides confirms that calving dynamics needs to be three-d or in design view in ice tabloid models to account for complex bed topography and minute fjords along the coast of Greenland. ] ] > Keywords: ECCO Products Used: ECCO2URL: https://www.the-cryosphere.net/12/3735/2018/ Other URLs:
Evans, Dafydd Gwyn; Zika, Jan D; Naveira Garabato, Alberto C; Nurser, A J George (2018). The Cold Transit of Southern Ocean Upwelling, Geophysical Research Letters, 24 (45), 13,313-386,395, 10.1029/2018GL079986. Title: The Cold Transit of Southern Ocean Upwelling Type: Journal article Publication: Geophysical Research Letters Author(s): Evans, Dafydd Gwyn ; Zika, Jan D ; Naveira Garabato, Alberto C ; Nurser, A J George Year: 2018 Formatted Citation: Evans, D. G., J. D. Zika, A. C. Naveira Garabato, and A. J. G. Nurser, 2018 : The Cold Transit of Southern Ocean Upwelling. Geophys. Res. Lett., 45 ( 24 ), 13,313-386,395, doi:10.1029/2018GL079986 Abstract: The upwelling of deep waters in the southerly Ocean is a critical component of the climate system. The time and zonal bastardly dynamics of this circulation describe the upwelling of Circumpolar Deep Water and the downwelling of Antarctic Intermediate Water. The thermodynamic drivers of the circulation and their seasonal worker cycle play a potentially cardinal regulative function. here an observationally constrained ocean mannequin and an observation-based seasonal climatology are analyzed from a thermodynamic position, to assess the diabatic processes controlling overturning in the southern Ocean. This reveals a seasonal worker two-stage cold passage in the formation of intermediate water from upwelled deep water. First, relatively affectionate and saline deep water is transformed into cold and fresher near-surface winter urine via winter mix. Second, winter water warms to form intermediate water through summer surface heat fluxes. The mixing-driven pathway from deep body of water to winter water follows mixing lines in thermohaline coordinates indicative of nonlinear processes. Keywords: Circumpolar Deep Water, Southern Ocean overturning, air-ice-sea interactions, intermediate water, nonlinear EOS, seasonal transformation ECCO Products Used: ECCO-V4URL: https://doi.org/10.1029/2018GL079986 Other URLs:
Chi, Lequan; Wolfe, Christopher L.P.; Hameed, Sultan (2018). Intercomparison of the Gulf Stream in ocean reanalyses: 1993−2010, Ocean Modelling (125), 1-21, 10.1016/j.ocemod.2018.02.008. Title: Intercomparison of the Gulf Stream in ocean reanalyses : 1993−2010 Type: Journal article Publication: Ocean Modelling Author(s): Chi, Lequan ; Wolfe, Christopher L.P. ; Hameed, Sultan Year: 2018 Formatted Citation: Chi, L., C. L. Wolfe, and S. Hameed, 2018 : Intercomparison of the Gulf Stream in ocean reanalyses : 1993−2010. Ocean Modelling, 125, 1-21, doi:10.1016/j.ocemod.2018.02.008 Abstract: Keywords: ECCO Products Used: ECCO-V4 ; ECCO2URL: https://linkinghub.elsevier.com/retrieve/pii/S1463500318300568 Other URLs:
Bondzio, Johannes H.; Morlighem, Mathieu; Seroussi, Hélène; Wood, Michael H.; Mouginot, Jérémie (2018). Control of Ocean Temperature on Jakobshavn Isbrae’s Present and Future Mass Loss, Geophysical Research Letters, 23 (45), 12,912-12,921, 10.1029/2018GL079827. Title: Control of Ocean Temperature on Jakobshavn Isbrae ’ s Present and Future Mass Loss Type: Journal article Publication: Geophysical Research Letters Author(s): Bondzio, Johannes H. ; Morlighem, Mathieu ; Seroussi, Hélène ; Wood, Michael H. ; Mouginot, Jérémie Year: 2018 Formatted Citation: Bondzio, J. H., M. Morlighem, H. Seroussi, M. H. Wood, and J. Mouginot, 2018 : control condition of Ocean Temperature on Jakobshavn Isbrae ‘s Present and Future Mass Loss. Geophys. Res. Lett., 45 ( 23 ), 12,912-12,921, doi:10.1029/2018GL079827 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1029/2018GL079827 Other URLs:
Castellani, Giulia; Losch, Martin; Ungermann, Mischa; Gerdes, Rüdiger (2018). Sea-ice drag as a function of deformation and ice cover: Effects on simulated sea ice and ocean circulation in the Arctic, Ocean Modelling (128), 48-66, 10.1016/j.ocemod.2018.06.002. Title: Sea-ice drag as a function of distortion and internal-combustion engine cover : Effects on simulated ocean frost and ocean circulation in the Arctic Type: Journal article Publication: Ocean Modelling Author(s): Castellani, Giulia ; Losch, Martin ; Ungermann, Mischa ; Gerdes, Rüdiger Year: 2018 Formatted Citation: Castellani, G., M. Losch, M. Ungermann, and R. Gerdes, 2018 : Sea-ice drag as a function of deformation and ice cover : Effects on simulated sea internal-combustion engine and ocean circulation in the Arctic. Ocean Modelling, 128, 48-66, doi:10.1016/j.ocemod.2018.06.002 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://linkinghub.elsevier.com/retrieve/pii/S1463500318301550 Other URLs:
Fu, Lee-Lueng; Lee, Tong; Liu, W. Timothy; Kwok, Ronald (2018). 50 Years of Satellite Remote Sensing of the Ocean, Meteorological Monographs (59), 5.1-5.46, 10.1175/AMSMONOGRAPHS-D-18-0010.1. Title: 50 Years of Satellite Remote Sensing of the Ocean Type: Journal article Publication: Meteorological Monographs Author(s): Fu, Lee-Lueng ; Lee, Tong ; Liu, W. Timothy ; Kwok, Ronald Year: 2018 Formatted Citation: Fu, L., T. Lee, W. T. Liu, and R. Kwok, 2018 : 50 Years of Satellite Remote Sensing of the Ocean. Meteorological Monographs, 59, 5.1-5.46, doi:10.1175/AMSMONOGRAPHS-D-18-0010.1 Abstract: Keywords: ECCO Products Used: ECCO-V4 ; ECCO2URL: http://journals.ametsoc.org/doi/10.1175/AMSMONOGRAPHS-D-18-0010.1 Other URLs:
Liang, Xi; Losch, Martin (2018). On the effects of increased vertical mixing on the Arctic Ocean and sea ice, Journal of Geophysical Research: Oceans, April 2007 (2007), 1-17, 10.1029/2018JC014303. Title: On the effects of increased upright mix on the Arctic Ocean and sea frosting Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Liang, Xi ; Losch, Martin Year: 2018 Formatted Citation: Liang, X., and M. Losch, 2018 : On the effects of increased vertical mix on the Arctic Ocean and sea frost. J. Geophys. Res. Ocean., 2007 ( April 2007 ), 1-17, doi:10.1029/2018JC014303 Abstract: Keywords: Arctic, ocean circulation, ocean frosting, vertical mix ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1029/2018JC014303 Other URLs:
Torres, Hector S; Klein, Patrice; Menemenlis, Dimitris; Qiu, Bo; Su, Zhan; Wang, Jinbo; Chen, Shuiming; Fu, Lee-Lueng (2018). Partitioning ocean motions into balanced motions and internal gravity waves: A modeling study in anticipation of future space missions, J. Geophys. Res. Ocean., 11 (123), 8084-8105, 10.1029/2018JC014438. Title: Partitioning ocean motions into balanced motions and internal graveness waves : A model analyze in prediction of future space missions Type: Journal article Publication: J. Geophys. Res. Ocean. Author(s): Torres, Hector S ; Klein, Patrice ; Menemenlis, Dimitris ; Qiu, Bo ; Su, Zhan ; Wang, Jinbo ; Chen, Shuiming ; Fu, Lee-Lueng Year: 2018 Formatted Citation: Torres, H. S., P. Klein, D. Menemenlis, B. Qiu, Z. Su, J. Wang, S. Chen, and L. Fu, 2018 : Partitioning ocean motions into balanced motions and inner gravity waves : A modeling report in anticipation of future space missions. J. Geophys. Res. Ocean., 123 ( 11 ), 8084-8105, doi:10.1029/2018JC014438 Abstract: Internal graveness waves ( IGWs ) and poise motions ( BMs ) with scales < 100-km capture most of the upright speed battlefield in the upper ocean. They have, however, different impacts on the ocean energy budget, which explains the want to partition motions into BMs and IGWs. One means is to exploit the synergy of using different satellite observations, the only observations with global coverage, and a reasonable spatial and temporal resolution. But we need first to characterize and understand their signatures on the unlike surface oceanic fields. This study addresses this issue by using an ocean global numerical pretense with high-resolution ( 1/48° ). Our methodology is based on the analysis of the 12,000 frequency-wave count spectrum to discriminate these two classes of motions in the surface kinetic energy, sea airfoil height, sea coat temperature, sea come on salt, relative vorticity, and divergence fields and for two seasons. Results reveal a complex movie global of the partition of motions between IGWs and BMs in the unlike coat fields, depending on the season, the hemisphere, and moo and gamey eddy kinetic department of energy regions. But they besides highlight some generic properties on the impact of these two classes of motions on the unlike fields. This points to the synergy of using present and future satellite observations to assess the ocean kinetic department of energy on a ball-shaped scale. The 12,000 frequency-wave number spectrum represent a World Ocean Atlas of the open ocean dynamics not fully exploited in the present analyze. We hope the manipulation of this World Ocean Atlas by other studies will lead to extend much these results. Keywords: ECCO Products Used: LLC_hiresURL: http://doi.wiley.com/10.1029/2018JC014438 Other URLs:
Wunsch, Carl; Ferrari, Raffaele (2018). 100 Years of the Ocean General Circulation, Meteorological Monographs (59), 7.1-7.32, 10.1175/AMSMONOGRAPHS-D-18-0002.1. Title: 100 Years of the Ocean General Circulation Type: Book segment Publication: Meteorological Monographs Author(s): Wunsch, Carl ; Ferrari, Raffaele Year: 2018 Formatted Citation: Wunsch, C., and R. Ferrari, 2018 : 100 Years of the Ocean General Circulation. Meteorological Monographs, 59, 7.1-7.32, doi:10.1175/AMSMONOGRAPHS-D-18-0002.1 Abstract: Keywords: ECCO Products Used: ECCO-V2 ; ECCO2URL: http://journals.ametsoc.org/doi/10.1175/AMSMONOGRAPHS-D-18-0002.1 Other URLs:
Hartfield, Gail; Blunden, Jessica; Arndt, Derek S. (2018). State of the Climate in 2017, Bulletin of the American Meteorological Society, 8 (99), Si-S310, 10.1175/2018BAMSStateoftheClimate.1. Title: State of the Climate in 2017 Type: Journal article Publication: Bulletin of the american english Meteorological company Author(s): Hartfield, Gail ; Blunden, Jessica ; Arndt, Derek S. Year: 2018 Formatted Citation: Hartfield, G., J. Blunden, and D. S. Arndt, 2018 : submit of the Climate in 2017. Bull. Am. Meteorol. Soc., 99 ( 8 ), Si-S310, doi:10.1175/2018BAMSStateoftheClimate.1 Abstract: Editor ‘s note : For slowly download the posted pdf of the State of the Climate for 2018 is a low-resolution file. A high-resolution imitate of the report is available by clicking hera. Please be patient as it may take a few minutes for the high-resolution file to download. Keywords: ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/10.1175/2018BAMSStateoftheClimate.1 Other URLs: hypertext transfer protocol : //journals.ametsoc.org/bams/article/99/8/Si/342651/State-of-the-Climate-in-2017
Yu, Nan; Li, Jiancheng; Ray, Jim; Chen, Wei (2018). Improved geophysical excitation of length-of-day constrained by Earth orientation parameters and satellite gravimetry products, Geophysical Journal International, 3 (214), 1633-1651, 10.1093/gji/ggy204. Title: Improved geophysical excitation of length-of-day constrained by Earth orientation parameters and satellite hydrometry products Type: Journal article Publication: Geophysical Journal International Author(s): Yu, Nan ; Li, Jiancheng ; Ray, Jim ; Chen, Wei Year: 2018 Formatted Citation: Yu, N., J. Li, J. Ray, and W. Chen, 2018 : Improved geophysical excitation of length-of-day constrained by Earth orientation parameters and satellite hydrometry products. Geophysical Journal International, 214 ( 3 ), 1633-1651, doi:10.1093/gji/ggy204 Abstract: At timescales shorter than about 2 yr, non-tidal length-of-day ( LOD ) variations are chiefly excited by angular momentum exchanges between the atmospheric, oceanic and continental hydrological fluent envelopes and the underlying solid earth. But, neither agreement among different geophysical models for the fluent dynamics nor consistency with geodetic observations of LOD has reached satisfactory levels. This is chiefly ascribed to significant discrepancies and uncertainties in the theories and assumptions adopted by different modelling groups, in their numeric methods, and in the accuracy and coverage of global input data fields. Based on careful comparisons with more accurate geodetic measurements and satellite hydrometry products ( from satellite laser rate, SLR ), detect LOD and C20 geopotential time-series can provide strong constraints to evaluate or form combine geophysical models. In this study, ripple decay is used to extract several narrow-band components to compare in accession to considering the total signals. We then make refinements to the least difference combination ( LDC ) method acting proposed by Chen et al., to form multimodel geophysical excitations. Two combination variants, called the slant bastardly combination ( WMC2 and WMC4 ), are besides evaluated. All the multimodel methods attempt to extract the best-modelled frequency components from each geophysical model by relying on geodetic excitement and the C20 series as references. The relative performances of the three combinations LDC, WMC2 and WMC4 and the master single models are determined. We find that ( 1 ) Estimating the Circulation and Climate of the Ocean and Max-Planck-Institute for Meteorology Ocean Model give a more authentic watch of the ocean redistributions than the Ocean Model for Circulation and Tides used by european Centre for Medium-Range Weather Forecasts, specially for the annual part ; ( 2 ) C20 series from SLR can provide a rigorous restraint for the total matter excitement of the geophysical fluids, particularly for broad-band parts ; ( 3 ) the low-lying Angular Momentum functions condition, correcting for low-lying effects ( ball-shaped mass libra ) put forward by the Earth System Modelling group at GFZ german Research Centre for Geosciences, can significantly improve the Hydrospheric Effective Angular Momentum functions matter terms ; ( 4 ) the LDC/WMC combinations are much better than the master individual geophysical model excitations, reducing the magnitude of unexplained LOD excitations to roughly the 10 μs level ; ( 5 ) the level of residual LOD variations after removing models or model combinations is unusually invariant with regard to LOD periods between ∼2 months and ∼3 year, being 12-14 μs for the best master models and 7-12 μs for our combinations ; ( 6 ) while differences between the IERS 14C04 and the JPL SPACE2015 geodetic LOD time-series are not negligible, errors in both series are still not big compared to the geophysical models ( for periods > 2 months ) so the impact on excitement studies is minimal except at semiannual periods and normally 14C04 compares better with excitement models. The improved geophysical models are recommended to replace the original ones as they present overwhelming advantages. Keywords: ECCO Products Used: ECCO-KFSURL: https://academic.oup.com/gji/article/214/3/1633/5000171 Other URLs:
Chamberlain, Paul; Talley, Lynne D; Mazloff, Matthew; Riser, Stephen; Speer, Kevin; Gray, Alison R; Schwartzman, Armin (2018). Observing the ice-covered Weddell Gyre with profiling floats: position uncertainties and correlation statistics, Journal of Geophysical Research: Oceans, ja, 10.1029/2017JC012990. Title: Observing the ice-covered Weddell Gyre with profiling floats : position uncertainties and correlation coefficient statistics Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Chamberlain, Paul ; Talley, Lynne D ; Mazloff, Matthew ; Riser, Stephen ; Speer, Kevin ; Gray, Alison R ; Schwartzman, Armin Year: 2018 Formatted Citation: Chamberlain, P., L. D. Talley, M. Mazloff, S. Riser, K. Speer, A. R. Gray, and A. Schwartzman, 2018 : Observing the ice-covered Weddell Gyre with profiling floats : position uncertainties and correlation coefficient statistics. J. Geophys. Res. Ocean. ( ja ), doi:10.1029/2017JC012990 Abstract: Argo-type profile floats do not receive satellite positioning while under sea ice. Common practice is to approximate unknown positions by linearly interpolating latitude-longitude between known positions before and after ice cover, although it has been suggested that some improvement may be obtained by interpolating along contours of planetary-geostrophic potential vorticity. Profiles with linearly interpolated positions represent 16 % of the Southern Ocean Argo dataset ; consequences arising from this approximation have not been quantified. Using three clear-cut datasets from the Weddell Gyre – 10 day satellite-tracked Argo floats, daily-tracked RAFOS-enabled floats, and a particle liberation simulation in the southern Ocean State Estimate ( SOSE ) – we perform a datum withholding tax experiment to assess side uncertainty in latitude-longitude and likely vorticity coordinates as a function of meter since last fix. A spatial correlation coefficient analysis using the float data provides temperature and salt doubt estimates as a function of distance error. Combining the spatial correlation scales and the placement uncertainty, we estimate doubt in temperature and brininess as a officiate of duration of placement loss. utmost position uncertainty for interpolation during 8 months without position data is 116 { \textpm } 148 km for latitude-longitude and 92 { \textpm } 121 kilometer for potential vorticity coordinates. The calculate maximum doubt in local anesthetic temperature and salt over the entire 2,000 megabyte profiles during 8 months without position data is 0.66 { \textdegree } ~C and 0.15 psu in the upper 300 molarity and 0.16 { \textdegree } ~C and 0.01 psu below 300 thousand. Keywords: Air/sea Flux Uncertainty, Salinity Uncertainty, Temperature Uncertainty, Under Ice Floats, Weddell Sea Circulation ECCO Products Used: SOSEURL: https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2017JC012990 Other URLs:
Guo, Yongqing; Lin, Xiaopei; Wei, Meng; Liu, Cong; Men, Guang (2018). Decadal Variability of North Pacific Eastern Subtropical Mode Water, Journal of Geophysical Research: Oceans, 9 (123), 6189-6206, 10.1029/2018JC013890. Title: Decadal Variability of North Pacific Eastern Subtropical Mode Water Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Guo, Yongqing ; Lin, Xiaopei ; Wei, Meng ; Liu, Cong ; Men, Guang Year: 2018 Formatted Citation: Guo, Y., X. Lin, M. Wei, C. Liu, and G. Men, 2018 : Decadal Variability of North Pacific Eastern Subtropical Mode Water. J. Geophys. Res. Ocean., 123 ( 9 ), 6189-6206, doi:10.1029/2018JC013890 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1029/2018JC013890 Other URLs:
Goldberg, D N; Snow, K; Holland, P; Jordan, J R; Campin, Jean-Michel; Heimbach, P; Arthern, R; Jenkins, A (2018). Representing grounding line migration in synchronous coupling between a marine ice sheet model and a z -coordinate ocean model, Ocean Modelling (125), 45-60, 10.1016/j.ocemod.2018.03.005. Title: Representing grounding line migration in synchronous coupling between a marine ice sail model and a omega -coordinate ocean exemplary Type: Journal article Publication: Ocean Modelling Author(s): Goldberg, D N ; Snow, K ; Holland, P ; Jordan, J R ; Campin, Jean-Michel ; Heimbach, P ; Arthern, R ; Jenkins, A Year: 2018 Formatted Citation: Goldberg, D. N., K. Snow, P. Holland, J. R. Jordan, J. Campin, P. Heimbach, R. Arthern, and A. Jenkins, 2018 : Representing grounding argumentation migration in synchronous coupling between a nautical ice tabloid model and a omega -coordinate ocean model. Ocean Modelling, 125, 45-60, doi:10.1016/j.ocemod.2018.03.005 Abstract: synchronous match is developed between an ice sheet exemplar and a z-coordinate ocean exemplary ( the MITgcm ). A previously-developed schema to allow continuous upright movement of the ice-ocean interface of a float ice rink ledge ( “ vertical coupling ” ) is built upon to allow continuous movement of the prime line, or point of floa- tation of the ice sail ( “ horizontal match ” ). horizontal coupling is implemented through the maintenance of a thin layer of ocean ( ∼ 1 molarity ) under grounded methamphetamine, which is inflated into the actual ocean as the ice ungrounds. This is accomplished through a modification of the ocean model ‘s nonlinear dislodge surface evolution in a manner akin to a hydrological model in the presence of steep bathymetry. The copulate exemplary is applied to a number of idealized geometries and shown to successfully represent ocean-forced marine ice rink tabloid retreat while maintaining a continuous ocean circulation. Keywords: ECCO Products Used: URL: http://doi.org/10.1016/j.ocemod.2018.03.005 Other URLs:
Triest, Ludwig; Sierens, Tim; Menemenlis, Dimitris; Van der Stocken, Tom (2018). Inferring Connectivity Range in Submerged Aquatic Populations (Ruppia L.) Along European Coastal Lagoons From Genetic Imprint and Simulated Dispersal Trajectories, Frontiers in Plant Science (9), 10.3389/fpls.2018.00806. Title: Inferring Connectivity Range in Submerged Aquatic Populations ( Ruppia L. ) Along european Coastal Lagoons From Genetic Imprint and Simulated Dispersal Trajectories Type: Journal article Publication: Frontiers in Plant Science Author(s): Triest, Ludwig ; Sierens, Tim ; Menemenlis, Dimitris ; Van five hundred Stocken, Tom Year: 2018 Formatted Citation: Triest, L., T. Sierens, D. Menemenlis, and T. Van five hundred Stocken, 2018 : Inferring Connectivity Range in Submerged Aquatic Populations ( Ruppia L. ) Along european Coastal Lagoons From Genetic Imprint and Simulated Dispersal Trajectories. Front. Plant Sci., 9, doi:10.3389/fpls.2018.00806 Abstract: Keywords: ECCO Products Used: LLC_hiresURL: https://www.frontiersin.org/article/10.3389/fpls.2018.00806/full Other URLs:
Piecuch, Christopher G; Landerer, Felix W; Ponte, Rui M (2018). Tide gauge records reveal improved processing of gravity recovery and climate experiment time-variable mass solutions over the coastal ocean, Geophysical Journal International, 2 (214), 1401-1412, 10.1093/gji/ggy207. Title: Tide gauge records reveal improved processing of gravity convalescence and climate experiment time-variable multitude solutions over the coastal ocean Type: Journal article Publication: Geophysical Journal International Author(s): Piecuch, Christopher G ; Landerer, Felix W ; Ponte, Rui M Year: 2018 Formatted Citation: Piecuch, C. G., F. W. Landerer, and R. M. Ponte, 2018 : Tide gauge records reveal better process of gravity convalescence and climate experiment time-variable mass solutions over the coastal ocean. Geophysical Journal International, 214 ( 2 ), 1401-1412, doi:10.1093/gji/ggy207 Abstract: monthly ocean bottomland pressure solutions from the Gravity Recovery and Climate Experiment ( GRACE ), derived using surface spherical cap mass concentration ( MC ) blocks and ball-shaped harmonics ( SH ) footing functions, are compared to tide gauge ( TG ) monthly averaged sea level data over 2003-2015 to evaluate better hydrometric data processing methods near the slide. MC solutions can explain ≳ 42 per penny of the monthly variance in TG time-series over broad shelf regions and in semi-enclosed fringy seas. MC solutions besides generally explain ~ 5-32 per penny more TG data discrepancy than SH estimates. Applying a coastline resolving power improvement algorithm in the GRACE datum serve leads to ~ 31 per penny more variation in TG records explained by the MC solution on average compared to not using this algorithm. man-made observations sampled from an ocean general circulation model exhibit alike patterns of agreement between modelled TG and MC time-series and differences between MC and SH time-series in terms of their kinship with TG time-series, suggesting that experimental results here are by and large reproducible with expectations from ocean dynamics. This exercise demonstrates the improved choice of holocene MC solutions compared to earlier SH estimates over the coastal ocean, and suggests that the MC solutions could be a utilitarian tool for agreement contemporary coastal sea flush unevenness and change. Keywords: ECCO Products Used: ECCO2URL: http://dx.doi.org/10.1093/gji/ggy207 Other URLs: hypertext transfer protocol : //academic.oup.com/gji/article/214/2/1401/5000174
Craig, P. M. (2018). The Atlantic/Pacific atmospheric moisture budget asymmetry: the role of atmospheric moisture transport. Title: The Atlantic/Pacific atmospheric moisture budget asymmetry : the function of atmospheric moisture transmit Type: thesis Publication: Author(s): Craig, P. M. Year: 2018 Formatted Citation: Craig, P. M., 2018 : The Atlantic/Pacific atmospheric moisture budget asymmetry : the function of atmospheric moisture enchant. Abstract: Keywords: ECCO Products Used: ECCO-V4 URL: Other URLs:
Moteki, Qoosaku; Katsumata, Masaki; Yoneyama, Kunio; Ando, Kentaro; Hasegawa, Takuya (2018). Drastic thickening of the barrier layer off the western coast of Sumatra due to the Madden-Julian oscillation passage during the Pre-Years of the Maritime Continent campaign, Progress in Earth and Planetary Science, 1 (5), 35, 10.1186/s40645-018-0190-9. Title: Drastic thickening of the barrier layer off the western coast of Sumatra due to the Madden-Julian oscillation passage during the Pre-Years of the Maritime Continent campaign Type: Journal article Publication: Progress in Earth and Planetary Science Author(s): Moteki, Qoosaku ; Katsumata, Masaki ; Yoneyama, Kunio ; Ando, Kentaro ; Hasegawa, Takuya Year: 2018 Formatted Citation: Moteki, Q., M. Katsumata, K. Yoneyama, K. Ando, and T. Hasegawa, 2018 : drastic node of the barrier layer off the western coast of Sumatra due to the Madden-Julian cycle passing during the Pre-Years of the Maritime Continent campaign. build up in Earth and Planetary Science, 5 ( 1 ), 35, doi:10.1186/s40645-018-0190-9 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://progearthplanetsci.springeropen.com/articles/10.1186/s40645-018-0190-9 Other URLs:
Dwivedi, Suneet; Srivastava, Atul; Mishra, Alok Kumar (2018). Upper Ocean Four-Dimensional Variational Data Assimilation in the Arabian Sea and Bay of Bengal, Marine Geodesy, 3 (41), 230-257, 10.1080/01490419.2017.1405128. Title: Upper Ocean Four-Dimensional Variational Data Assimilation in the Arabian Sea and Bay of Bengal Type: Journal article Publication: Marine Geodesy Author(s): Dwivedi, Suneet ; Srivastava, Atul ; Mishra, Alok Kumar Year: 2018 Formatted Citation: Dwivedi, S., A. Srivastava, and A. K. Mishra, 2018 : upper Ocean Four-Dimensional Variational Data Assimilation in the Arabian Sea and Bay of Bengal. Marine Geodesy, 41 ( 3 ), 230-257, doi:10.1080/01490419.2017.1405128 Abstract: Keywords: ECCO Products Used: ECCO-KFS ; ECCO2URL: https://www.tandfonline.com/doi/full/10.1080/01490419.2017.1405128 Other URLs:
Morlighem, Mathieu; Wood, Michael; Seroussi, Hélène; Choi, Youngmin; Rignot, Eric (2018). Modeling the response of Northwest Greenland to enhanced ocean thermal forcing and subglacial discharge, The Cryosphere Discussions, 1-18, 10.5194/tc-2018-214. Title: Modeling the response of Northwest Greenland to enhanced ocean thermal push and subglacial discharge Type: Journal article Publication: The Cryosphere Discussions Author(s): Morlighem, Mathieu ; Wood, Michael ; Seroussi, Hélène ; Choi, Youngmin ; Rignot, Eric Year: 2018 Formatted Citation: Morlighem, M., M. Wood, H. Seroussi, Y. Choi, and E. Rignot, 2018 : Modeling the reaction of Northwest Greenland to enhanced ocean thermal storm and subglacial discharge. The Cryosphere Discussions, 1-18, doi:10.5194/tc-2018-214 Abstract: Calving front dynamics is an important dominance on Greenland ‘s methamphetamine aggregate counterweight. Ice front withdraw of marine-terminating glaciers may, for exemplar, precede to a loss in resistive stress, which ultimately results in glacier acceleration and cutting. Over the past ten, it has been suggested that such retreats may be triggered by warm and salty Atlantic body of water, which is typically found at a depth below 200–300m. An increase in subglacial water discharge at glacier ice rink fronts due to enhanced surface runoff may besides be responsible for an intensification of undercutting and calving. An increase in ocean thermal force or subglacial free therefore has the likely to destabilize marine terminating glaciers along the coast of Greenland. It remains unclear which glaciers are presently stable but may retreat in the future, and how army for the liberation of rwanda inland and how fast they will retreat. here, we quantify the sensitivity and vulnerability of marine-terminating glaciers along the Northwest seashore of Greenland ( from 72.5º to 76ºN ) to the ocean force and subglacial release using the Ice Sheet System Model ( ISSM ). We rely on the undercutting parameterization based on ocean thermal force and subglacial exhaust, and use ocean temperature and brininess from high-resolution ECCO2 ( Estimating the Circulation & Climate of the Ocean, Phase II ) simulations at the fjords mouth to constrain the ocean thermal coerce. The methamphetamine menstruation model includes a calve law based on a tensile Von Mises standard. While these parameterizations remain approximations and do not include all the physical processes at play, they have been shown to provide reliable estimates of undercut and calving rates, respectively, on a number of glaciers along the coast of Greenland. We find that some glaciers, such as Dietrichson Gletscher or Alison Gletscher, are sensitive to small increases in ocean thermal force, while others, such as Illullip Sermia or Cornell Gletscher, are unusually stable and remain stable, evening in a 3-degree ocean warming scenario. Under the most intense experiment, we find that Hayes Gletscher retreats by more than 50km inland into a deep gutter and its speed increases by a agent of 10 over only 15 years. The exemplary confirms that ice-ocean interactions can trigger across-the-board and rapid glacier retrograde, but the seam controls the rate and magnitude of the retreat. Under stream oceanic and atmospheric condition, we find that this sector alone will contribute more than 1cm to sea degree, and up to 3cm under the most extreme scenario. Keywords: ECCO Products Used: ECCO2URL: https://www.the-cryosphere-discuss.net/tc-2018-214/ Other URLs:
Foukal, Nicholas Peter (2018). Ocean Heat Transport from the Subtropical Gyre to the Subpolar Gyre in the North Atlantic. Title: Ocean Heat Transport from the Subtropical Gyre to the Subpolar Gyre in the North Atlantic Type: thesis Publication: Author(s): Foukal, Nicholas Peter Year: 2018 Formatted Citation: Foukal, N. P., 2018 : Ocean Heat Transport from the Subtropical Gyre to the Subpolar Gyre in the North Atlantic. Abstract: Keywords: ECCO Products Used: ECCO-V4 URL: Other URLs:
Wińska, Małgorzata; Śliwińska, Justyna (2018). Assessing hydrological signal in polar motion from observations and geophysical models, Studia Geophysica et Geodaetica, 2019 (63), 10.1007/s11200-018-1028-z. Title: Assessing hydrological bespeak in arctic motion from observations and geophysical models Type: Journal article Publication: Studia Geophysica et Geodaetica Author(s): Wińska, Małgorzata ; Śliwińska, Justyna Year: 2018 Formatted Citation: Wińska, M., and J. Śliwińska, 2018 : Assessing hydrological signal in polar apparent motion from observations and geophysical models. Studia Geophysica et Geodaetica, 63 ( 2019 ), doi:10.1007/s11200-018-1028-z Abstract: Changes in terrestrial Water Storage ( TWS ) due to seasonal worker changes in soil moisture, ice and bamboozle load and melting influence the Earth ‘s inactiveness tensor. quantitative assessment of hydrological effects of polar motion remains ill-defined because of the miss of the observations and differences between respective atmospheric and ocean models. We compare the effects of respective hydrological excitement functions computed as the deviation between the excitation function of polar apparent motion Geodetic Angular Momentum ( GAM ) and roast atmospheric plus oceanic excitement functions, called geodetic residuals. geodetic residuals are computed for different Atmospheric Angular Momentum ( AAM ) and Oceanic Angular Momentum ( OAM ) models and are analyzed and compared with the hydrological excitation function determined from the Land Surface Discharge Model. They are analyzed on decadal, interannual, seasonal and non-seasonal time scales. The equatorial components of hydrological geodetic excitation functions χ1 and χ2 are decomposed into prograde and retrograde time series by applying Complex Fourier Transform Models. The agreement between hydrological geodetic residuals and excitation functions is validated using Taylor diagram. This shows that agreement is highly dependent on AAM and OAM models. Errors in these models affect the resulting geodetic residuals and have a strong shock on the Earth ‘s angular momentum budget. Keywords: ECCO Products Used: ECCO-KFSURL: https://link.springer.com/article/10.1007/s11200-018-1028-z?utm_source=researcher_app&utm_medium=referral&utm_campaign=MKEF_USG_Researcher_inbound Other URLs:
Cole, Sylvia T. (2018). Investigating small-scale processes from an abundance of autonomous observations, ALPS II – Autonomous Lagrangian Platforms and Sensors. A Report of the ALPS II Workshop, 25-27. Title: Investigating small-scale processes from an abundance of autonomous observations Type: Report Publication: ALPS II – autonomous Lagrangian Platforms and Sensors. A report card of the ALPS II Workshop Author(s): Cole, Sylvia T. Year: 2018 Formatted Citation: Cole, S. T., 2018 : Investigating small-scale processes from an abundance of autonomous observations. ALPS II – autonomous Lagrangian Platforms and Sensors. A report of the ALPS II Workshop, La Jolla, CA, 25-27 pp. Abstract: small-scale processes, those with spatial and/or temporal scales less than a few hundred kilometers and a few weeks, vary on ball-shaped and decadal scales. such large-scale variations in small- scale processes have been unmanageable to observe. Within the final ten, global and regional-scale autonomous observations have begun to fill this experimental gap. The specific processes that can be investigated from autonomous platforms are deter- mined by the minimum scale in space and time sampled by each platform. holocene examples are highlighted, and the future potential is discussed. Keywords: ECCO Products Used: ECCO2URL: https://alps-ocean.us/contents/ Other URLs: hypertext transfer protocol : //alps-ocean.us/pdfs/Cole.pdf
Gregor, Luke; Kok, Schalk; Monteiro, Pedro M. S. (2018). Interannual drivers of the seasonal cycle of CO2 in the Southern Ocean, Biogeosciences, 8 (15), 2361-2378, 10.5194/bg-15-2361-2018. Title: Interannual drivers of the seasonal worker cycle of CO2 in the southerly Ocean Type: Journal article Publication: Biogeosciences Author(s): Gregor, Luke ; Kok, Schalk ; Monteiro, Pedro M. S. Year: 2018 Formatted Citation: Gregor, L., S. Kok, and P. M. S. Monteiro, 2018 : Interannual drivers of the seasonal worker cycle of CO2 in the southern Ocean. Biogeosciences, 15 ( 8 ), 2361-2378, doi:10.5194/bg-15-2361-2018 Abstract: Resolving and understanding the drivers of unevenness of CO2 in the southerly Ocean and its potential climate feedback is one of the major scientific challenges of the ocean-climate community. here we use a regional access on empirical estimates of pCO2 to understand the role that seasonal variability has in long-run CO2 changes in the southerly Ocean. Machine learning has become the favored empiric model cock to interpolate time- and location-restricted ship measurements of pCO2. In this study we use an ensemble of three machine-learning products : back vector regression ( SVR ) and random forest regression ( RFR ) from Gregor et alabama. ( 2017 ), and the self-organising-map feed-forward nervous network ( SOM-FFN ) method from Landschützer et aluminum. ( 2016 ). The interpolate estimates of ΔpCO2 are separated into nine regions in the southern Ocean defined by washbasin ( indian, Pacific, and Atlantic ) and biomes ( as defined by Fay and McKinley, 2014a ). The regional approach shows that, while there is thoroughly agreement in the overall vogue of the products, there are periods and regions where the assurance in estimated ΔpCO2 is low due to disagreement between the products. The regional breakdown of the data highlighted the seasonal decouple of the modes for summer and winter interannual variability. Winter interannual variability had a longer mode of variability compared to summer, which varied on a 4-6-year timescale. We separate the analysis of the ΔpCO2 and its drivers into summer and winter. We find that understanding the variability of ΔpCO2 and its drivers on shorter timescales is critical to resolving the long-run unevenness of ΔpCO2. Results show that ΔpCO2 is rarely driven by thermodynamics during winter, but quite by mixing and stratification due to the stronger correlation of ΔpCO2 variability with mix layer depth. Summer pCO2 variability is consistent with chlorophyll a unevenness, where higher concentrations of chlorophyll a equate with lower pCO2 concentrations. In regions of low chlorophyll a concentrations, wind tension and sea surface temperature emerged as stronger drivers of ΔpCO2. In drumhead we propose that sub-decadal variability is explained by summer drivers, while winter variability contributes to the long-run changes associated with the SAM. This approach is a utilitarian model to assess the drivers of ΔpCO2 but would greatly benefit from better estimates of ΔpCO2 and a longer time series. Keywords: ECCO Products Used: ECCO2URL: https://www.biogeosciences.net/15/2361/2018/ Other URLs:
Chen, Xiao; Qiu, Bo; Chen, Shuiming; Cheng, Xuhua; Qi, Yiquan (2018). Interannual Modulations of the 50-Day Oscillations in the Celebes Sea: Dynamics and Impact, Journal of Geophysical Research: Oceans, 7 (123), 4666-4679, 10.1029/2018JC013960. Title: Interannual Modulations of the 50-Day Oscillations in the Celebes Sea : Dynamics and Impact Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Chen, Xiao ; Qiu, Bo ; Chen, Shuiming ; Cheng, Xuhua ; Qi, Yiquan Year: 2018 Formatted Citation: Chen, X., B. Qiu, S. Chen, X. Cheng, and Y. Qi, 2018 : Interannual Modulations of the 50-Day Oscillations in the Celebes Sea : Dynamics and Impact. J. Geophys. Res. Ocean., 123 ( 7 ), 4666-4679, doi:10.1029/2018JC013960 Abstract: Intense 50-day oscillations have been previously observed at the entrance of Celebes Sea, and their formation has been suggested to be a resultant role of Rossby wave resonance where the frequency of cyclonic eddy shedding by the intruding Mindanao Current matches that of the gravest Rossby mode of the semienclosed Celebes Sea washbasin. Using the ocean express calculate of 1993-2016 from the Estimating the Circulation and Climate of the Ocean, Phase II, we detected solid interannual modulations in the spill of cyclonic eddies at the Celebes Sea entrance. Active eddy sheddings occurred during 1993, 2002-2003, 2006-2010, and 2013-2015. Southward switch of the wind-driven North Pacific tropical coil and the coincident strengthen of the Mindanao Current southeast of the Mindanao Island in these years are found to be inductive for the generation of cyclonic eddies intruding into the Celebes Sea. Modulated by the activeness of eddy sheddings, the upper ocean water mass properties in both the Celebes Sea and Makassar Strait exhibit noticeable interannual changes with less saline waters appearing in the 75- to 175-m layer during the active eddy shedding years. Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1029/2018JC013960 Other URLs:
Zhao, Xia; Yuan, Dongliang; Yang, Guang; Wang, Jing; Liu, Hailong; Zhang, Renhe; Han, Weiqing (2018). Interannual variability and dynamics of intraseasonal wind rectification in the equatorial Pacific Ocean, Climate Dynamics, 10.1007/s00382-018-4383-0. Title: Interannual variability and dynamics of intraseasonal wreathe correction in the equatorial Pacific Ocean Type: Journal article Publication: Climate Dynamics Author(s): Zhao, Xia ; Yuan, Dongliang ; Yang, Guang ; Wang, Jing ; Liu, Hailong ; Zhang, Renhe ; Han, Weiqing Year: 2018 Formatted Citation: Zhao, X., D. Yuan, G. Yang, J. Wang, H. Liu, R. Zhang, and W. Han, 2018 : Interannual unevenness and dynamics of intraseasonal tip rectification in the equatorial Pacific Ocean. Climate Dynamics, doi:10.1007/s00382-018-4383-0 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://link.springer.com/10.1007/s00382-018-4383-0 Other URLs:
Pianezze, J.; Barthe, C.; Bielli, S.; Tulet, P.; Jullien, S.; Cambon, G.; Bousquet, O.; Claeys, M.; Cordier, E. (2018). A New Coupled Ocean-Waves-Atmosphere Model Designed for Tropical Storm Studies: Example of Tropical Cyclone Bejisa (2013-2014) in the South-West Indian Ocean, Journal of Advances in Modeling Earth Systems, 3 (10), 801-825, 10.1002/2017MS001177. Title: A New Coupled Ocean-Waves-Atmosphere Model Designed for Tropical Storm Studies : model of Tropical Cyclone Bejisa ( 2013-2014 ) in the South-West indian Ocean Type: Journal article Publication: Journal of Advances in Modeling Earth Systems Author(s): Pianezze, J. ; Barthe, C. ; Bielli, S. ; Tulet, P. ; Jullien, S. ; Cambon, G. ; Bousquet, O. ; Claeys, M. ; Cordier, E. Year: 2018 Formatted Citation: Pianezze, J. and Coauthors, 2018 : A New Coupled Ocean-Waves-Atmosphere Model Designed for Tropical Storm Studies : exemplar of Tropical Cyclone Bejisa ( 2013-2014 ) in the South-West amerind Ocean. Journal of Advances in Modeling Earth Systems, 10 ( 3 ), 801-825, doi:10.1002/2017MS001177 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2017MS001177 Other URLs:
Belonenko, T. V.; Volkov, D. L.; Koldunov, A. V. (2018). Shelf Waves in the Beaufort Sea in a High-Resolution Ocean Model, Oceanology, 6 (58), 778-785, 10.1134/S0001437018060024. Title: Shelf Waves in the Beaufort Sea in a High-Resolution Ocean Model Type: Journal article Publication: oceanography Author(s): Belonenko, T. V. ; Volkov, D. L. ; Koldunov, A. V. Year: 2018 Formatted Citation: Belonenko, T. V., D. L. Volkov, and A. V. Koldunov, 2018 : shelf Waves in the Beaufort Sea in a High-Resolution Ocean Model. Oceanology, 58 ( 6 ), 778-785, doi:10.1134/S0001437018060024 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://link.springer.com/10.1134/S0001437018060024 Other URLs:
Yang, Haiyuan; Qiu, Bo; Chang, Ping; Wu, Lixin; Wang, Shengpeng; Chen, Zhaohui; Yang, Yun (2018). Decadal Variability of Eddy Characteristics and Energetics in the Kuroshio Extension: Unstable Versus Stable States, Journal of Geophysical Research: Oceans, 9 (123), 6653-6669, 10.1029/2018JC014081. Title: Decadal Variability of Eddy Characteristics and Energetics in the Kuroshio propagation : unstable Versus Stable States Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Yang, Haiyuan ; Qiu, Bo ; Chang, Ping ; Wu, Lixin ; Wang, Shengpeng ; Chen, Zhaohui ; Yang, Yun Year: 2018 Formatted Citation: Yang, H., B. Qiu, P. Chang, L. Wu, S. Wang, Z. Chen, and Y. Yang, 2018 : Decadal Variability of Eddy Characteristics and Energetics in the Kuroshio annex : fluid Versus Stable States. J. Geophys. Res. Ocean., 123 ( 9 ), 6653-6669, doi:10.1029/2018JC014081 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1029/2018JC014081 Other URLs:
Talley, L D; Rosso, I; Kamenkovich, I; Mazloff, M R; Wang, J; Boss, E; Gray, A R; Johnson, K S; Key, R; Riser, S C; Williams, N L; Sarmiento, J L (2018). Southern Ocean biogeochemical float deployment strategy, with example from the Greenwich Meridian line (GO-SHIP A12), Journal of Geophysical Research: Oceans. Title: Southern Ocean biogeochemical float deployment scheme, with exemplar from the Greenwich Meridian line ( GO-SHIP A12 ) Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Talley, L D ; Rosso, I ; Kamenkovich, I ; Mazloff, M R ; Wang, J ; Boss, E ; Gray, A R ; Johnson, K S ; Key, R ; Riser, S C ; Williams, N L ; Sarmiento, J L Year: 2018 Formatted Citation: Talley, L. D. and Coauthors, 2018 : southern Ocean biogeochemical float deployment strategy, with case from the Greenwich Meridian production line ( GO-SHIP A12 ). J. Geophys. Res. Ocean. Abstract: Keywords: Southern Ocean, biogeochemical floats, carbon paper bicycle, circulation, sea frost, water masses ECCO Products Used: SOSE URL: Other URLs:
Fukumori, Ichiro; Fenty, Ian; Forget, Gael; Heimbach, Patrick; King, Charmaine; Nguyen, An (2018). Data sets used in ECCO Version 4 Release 3. Title: Data sets used in ECCO Version 4 Release 3 Type: Report Publication: Author(s): Fukumori, Ichiro ; Fenty, Ian ; Forget, Gael ; Heimbach, Patrick ; King, Charmaine ; Nguyen, An Year: 2018 Formatted Citation: Fukumori, I., I. Fenty, G. Forget, P. Heimbach, C. King, and A. Nguyen, 2018 : Data sets used in ECCO Version 4 Release 3., 1-11 pp. hypertext transfer protocol : //hdl.handle.net/1721.1/120472. Abstract: Keywords: ECCO Products Used: ECCO-V4 ; LLC_hiresURL: http://hdl.handle.net/1721.1/120472 Other URLs:
Li, Q; Lee, S; Mazloff, M (2018). Evidence of jet-scale overturning ocean circulations in Argo float trajectories, Geophysical Research Letters, 21 (45), 11866-11874, 10.1029/2018gl078950. Title: Evidence of jet-scale overturning ocean circulations in Argo float trajectories Type: Journal article Publication: Geophysical Research Letters Author(s): Li, Q ; Lee, S ; Mazloff, M Year: 2018 Formatted Citation: Li, Q., S. Lee, and M. Mazloff, 2018 : attest of jet-scale overturning ocean circulations in Argo float trajectories. Geophys. Res. Lett., 45 ( 21 ), 11866-11874, doi:10.1029/2018gl078950 Abstract: In a recent discipline, it was proposed that Reynolds stress by oceanic mesoscale eddies not only drives jets such as Subantarctic Front but besides can force overturning circulations that are composed of rising motion on the poleward flank and sinking gesture on the equatorward flank of the jets. In that study, the thermally collateral, jet-scale overthrow circulations ( JSOCs ) were detected in an eddy-resolving model pretense of the Southern Ocean. here experimental tell of the universe of JSOCs is demonstrated by showing that the Argo floats tend to drift poleward across the jet with the maximum drift accelerate coinciding with the correspond jet utmost. This find has an implication for the respect deep interracial layer because it was previously shown that in the model the JSOCs play a samara function in preconditioning the constitution of a abstruse and narrow blend layer at just similar to 1 degrees north of the Subantarctic Front. Plain Language Summary In the Southern Ocean, some of the deepest shuffle layers from early to late winter have a meridional scale of entirely like to 2 degrees and a depth of over 500 m. These shuffle layers are thought to be a critical pathway for ocean breathing of greenhouse gases and heat and frankincense considered as an crucial regulator of climate. Yet the mechanism for the key observed features of deep assorted layers is not well understood and is a national of active research. This wallpaper demonstrates experimental evidence of an revolutionize circulation, which was theorized to exist and to help history for the observe feature of speech of the deep interracial layer. numerous efforts to understand the mechanism of the thick mix level are afoot. therefore, it is important to present this newly identified overturning circulation to the community in a timely manner. Keywords: south-polar modality water, anthropogenetic carbon, symmetry, circumpolar, current, fluxes, geology, southern-ocean, subduction, transmit, unevenness ECCO Products Used: SOSEURL: %3CGo Other URLs: to
Lyu, Yilong; Li, Yuanlong; Tang, Xiaohui; Wang, Fan; Wang, Jianing (2018). Contrasting Intraseasonal Variations of the Equatorial Pacific Ocean Between the 1997-1998 and 2015-2016 El Niño Events, Geophysical Research Letters, 18 (45), 9748-9756, 10.1029/2018GL078915. Title: Contrasting Intraseasonal Variations of the Equatorial Pacific Ocean Between the 1997-1998 and 2015-2016 El Niño Events Type: Journal article Publication: Geophysical Research Letters Author(s): Lyu, Yilong ; Li, Yuanlong ; Tang, Xiaohui ; Wang, Fan ; Wang, Jianing Year: 2018 Formatted Citation: Lyu, Y., Y. Li, X. Tang, F. Wang, and J. Wang, 2018 : Contrasting Intraseasonal Variations of the Equatorial Pacific Ocean Between the 1997-1998 and 2015-2016 El Niño Events. Geophys. Res. Lett., 45 ( 18 ), 9748-9756, doi:10.1029/2018GL078915 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1029/2018GL078915 Other URLs:
Masich, Jessica; Mazloff, Matthew R; Chereskin, Teresa K (2018). Interfacial Form Stress in the Southern Ocean State Estimate, Journal of Geophysical Research: Oceans, 5 (123), 3368-3385, 10.1029/2018JC013844. Title: Interfacial Form Stress in the southerly Ocean State Estimate Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Masich, Jessica ; Mazloff, Matthew R ; Chereskin, Teresa K Year: 2018 Formatted Citation: Masich, J., M. R. Mazloff, and T. K. Chereskin, 2018 : interfacial Form Stress in the southern Ocean State Estimate. J. Geophys. Res. Ocean., 123 ( 5 ), 3368-3385, doi:10.1029/2018JC013844 Abstract: The scent stress that drives the Antarctic Circumpolar Current ( ACC ) exits the fluent via topographical mannequin stress ( TFS ) at the sea floor ; interfacial phase stress ( IFS ) is thought to carry much of this momentum from source to sink. These human body stresses aggregate to help set the lastingness and structure of the Southern Ocean meridional overturning circulation ( MOC ), a key link of heat and gas central between the thick ocean and the air. For the first time in a general circulation model, we calculate the time-varying, cubic IFS field directly from zonal atmospheric pressure gradients across upright perturbations in isopycnal layer interfaces. We confirm previous findings that IFS compensates wind stress at the open and topographical form stress at the seafloor in the Drake Passage latitudes. We find that zonal and time-mean IFS is chiefly responsible for this airfoil wind stress compensation, with some contribution from transeunt eddy IFS. Mean, standing eddy, and transient eddy IFS compound to compensate topographical form stress at depth. Both standing and transient eddy IFS condense at stationary meanders along the ACC, and transient eddy IFS dominates standing eddy IFS in regions of high eddy kinetic energy. ultimately, sum IFS changes sign from balancing eastbound weave tension to balancing west topographical shape stress around 28.1 kilogram m-3, close to the amphetamine terminus ad quem of Antarctic Bottom Water, indicating the role of buoyancy forcing in setting the structure of the IFS field. Keywords: Southern Ocean, Southern Ocean state estimate, interfacial form stress, meridional overturning circulation, momentum counterweight, topographical form try ECCO Products Used: SOSEURL: https://doi.org/10.1029/2018JC013844 Other URLs: hypertext transfer protocol : //doi.wiley.com/10.1029/2018JC013844
Lin, Xia; Wang, Zhaomin (2018). Simulated impact of Southern Hemisphere westerlies on Antarctic Shelf Bottom Water temperature, Advances in Polar Science, 3 (29), 3-19, 10.13679/j.advps.2018.3.00003. Title: Simulated impingement of Southern Hemisphere westerlies on Antarctic Shelf Bottom Water temperature Type: Journal article Publication: Advances in Polar skill Author(s): Lin, Xia ; Wang, Zhaomin Year: 2018 Formatted Citation: Lin, X., and Z. Wang, 2018 : fake impact of Southern Hemisphere westerlies on Antarctic Shelf Bottom Water temperature. Advances in Polar Science, 29 ( 3 ), 3-19, doi:10.13679/j.advps.2018.3.00003 Abstract: The Southern Hemisphere ( SH ) westerly winds have intensified and shifted poleward since the 1970s and this vogue is projected to sustain under future anthropogenetic wedge. The influences of escalate SH westerlies on the Antarctic coastal waters are still not clear. The unevenness of Antarctic Continental Shelf Bottom Water ( ASBW ) temperature is crucial for ice ledge radical melting and hence ice ledge mass balance in Antarctica. In order to understand the impacts of SH westerlies on the unevenness of ASBW temperature, atmospheric push in 1992 with weak westerlies and in 1998 with strong westerlies are used to drive a high-resolution ocean-sea frost general circulation model, MITgcm-ECCO2. Our fake results show that under the atmospheric coerce in 1998, the ASBW becomes warmer in most regions around Antarctica except the coastal area between 60°-150°W, than for the shell under atmospheric force in 1992. The heating of ASBW around Antarctica is due to the acute shallow and warm of CDW induced by enhance Ekman pump adenine well as strengthened subpolar gyres. The strengthen subpolar gyres favor the transportation of affectionate water system to the slide of Antarctica. The cool of ASBW along the coast of the western Antarctic Peninsula is caused by stronger coastal currents, which bring cold water downstream from the northwest flank of the Weddell Sea. Keywords: Antarctic Shelf Bottom Water temperature, MITgcm-ECCO2, Southern Hemisphere westerlies ECCO Products Used: ECCO2URL: http://www.aps-polar.org/paper/2018/29/03/A181023000001/full Other URLs: hypertext transfer protocol : //www.aps-polar.org/paper/pdffulldown/A181023000001
Mu, Longjiang; Yang, Qinghua; Losch, Martin; Losa, Svetlana N.; Ricker, Robert; Nerger, Lars; Liang, Xi (2018). Improving sea ice thickness estimates by assimilating CryoSat-2 and SMOS sea ice thickness data simultaneously, Quarterly Journal of the Royal Meteorological Society, 711 (144), 529-538, 10.1002/qj.3225. Title: Improving sea frost thickness estimates by assimilating CryoSat-2 and SMOS sea methamphetamine thickness data simultaneously Type: Journal article Publication: Quarterly Journal of the Royal Meteorological Society Author(s): Mu, Longjiang ; Yang, Qinghua ; Losch, Martin ; Losa, Svetlana N. ; Ricker, Robert ; Nerger, Lars ; Liang, Xi Year: 2018 Formatted Citation: Mu, L., Q. Yang, M. Losch, S. N. Losa, R. Ricker, L. Nerger, and X. Liang, 2018 : Improving sea frosting thickness estimates by assimilating CryoSat-2 and SMOS sea internal-combustion engine thickness data simultaneously. quarterly Journal of the Royal Meteorological Society, 144 ( 711 ), 529-538, doi:10.1002/qj.3225 Abstract: Keywords: ECCO Products Used: ECCO2 ; SeaIceURL: https://onlinelibrary.wiley.com/doi/abs/10.1002/qj.3225 Other URLs: hypertext transfer protocol : //doi.wiley.com/10.1002/qj.3225
Briggs, Ellen M; Martz, Todd R; Talley, Lynne D; Mazloff, Matthew R; Johnson, Kenneth S (2018). Physical and Biological Drivers of Biogeochemical Tracers Within the Seasonal Sea Ice Zone of the Southern Ocean From Profiling Floats, Journal of Geophysical Research: Oceans, 10.1002/2017JC012846. Title: Physical and Biological Drivers of Biogeochemical Tracers Within the Seasonal Sea Ice Zone of the southerly Ocean From Profiling Floats Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Briggs, Ellen M ; Martz, Todd R ; Talley, Lynne D ; Mazloff, Matthew R ; Johnson, Kenneth S Year: 2018 Formatted Citation: Briggs, E. M., T. R. Martz, L. D. Talley, M. R. Mazloff, and K. S. Johnson, 2018 : forcible and biological Drivers of Biogeochemical Tracers Within the Seasonal Sea Ice Zone of the southern Ocean From Profiling Floats. J. Geophys. Res. Ocean., doi:10.1002/2017JC012846 Abstract: n/a Keywords: Biogeochemical cycles, Profiling Float, SOCCOM, Southern Ocean, and model, biogeochemistry, processes ECCO Products Used: SOSEURL: http://dx.doi.org/10.1002/2017JC012846 Other URLs:
Mazloff, M. R.; Cornuelle, B. D.; Gille, S. T.; Verdy, A. (2018). Correlation Lengths for Estimating the Large-Scale Carbon and Heat Content of the Southern Ocean, Journal of Geophysical Research: Oceans, 2 (123), 883-901, 10.1002/2017JC013408. Title: Correlation Lengths for Estimating the large-scale Carbon and Heat Content of the Southern Ocean Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Mazloff, M. R. ; Cornuelle, B. D. ; Gille, S. T. ; Verdy, A. Year: 2018 Formatted Citation: Mazloff, M. R., B. D. Cornuelle, S. T. Gille, and A. Verdy, 2018 : correlation Lengths for Estimating the large-scale Carbon and Heat Content of the Southern Ocean. J. Geophys. Res. Ocean., 123 ( 2 ), 883-901, doi:10.1002/2017JC013408 Abstract: Keywords: ECCO Products Used: SOSEURL: http://doi.wiley.com/10.1002/2017JC013408 Other URLs:
Kumar, Ravi Prakash; Nigam, Tanuja; Pant, Vimlesh (2018). Estimation of oceanic subsurface mixing under a severe cyclonic storm using a coupled atmosphere-ocean-wave model, Ocean Science, 2 (14), 259-272, 10.5194/os-14-259-2018. Title: Estimation of oceanic subsurface mixing under a severe cyclonic storm using a coupled atmosphere-ocean-wave model Type: Journal article Publication: Ocean Science Author(s): Kumar, Ravi Prakash ; Nigam, Tanuja ; Pant, Vimlesh Year: 2018 Formatted Citation: Kumar, R. P., T. Nigam, and V. Pant, 2018 : estimate of oceanic subsurface mixing under a severe cyclonic ramp using a coupled atmosphere-ocean-wave model. Ocean Science, 14 ( 2 ), 259-272, doi:10.5194/os-14-259-2018 Abstract: A couple atmosphere-ocean-wave model was used to examine mix in the upper-oceanic layers under the influence of a very dangerous cyclonic storm Phailin over the Bay of Bengal ( BoB ) during 10-14 October 2013. The copulate model was found to improve the ocean surface temperature over the uncoupled model. Model simulations highlight the outstanding role of cyclone-induced near-inertial oscillations in subsurface mixing up to the thermocline astuteness. The inertial mix introduced by the cyclone played a central character in the deepening of the thermocline and interracial level depth by 40 and 15m, respectively. For the first gear time over the BoB, a detail analysis of inertial oscillation kinetic energy genesis, propagation, and dissipation was carried out using an atmosphere-ocean-wave couple model during a cyclone. A quantitative appraisal of kinetic energy in the oceanic water column, its propagation, and its dissipation mechanisms were explained using the coupled atmosphere-ocean-wave model. The big shear generated by the inertial oscillations was found to overcome the stratification and initiate mix at the al-qaeda of the desegregate layer. Greater shuffle was found at the depths where the eddy kinetic diffusivity was large. The baroclinic current, holding a larger divide of kinetic energy than the barotropic current, weakened quickly after the passage of the cyclone. The shear induced by inertial oscillations was found to decrease quickly with increasing depth below the thermocline. The muffle of the mix process below the thermocline was explained through the enhance profligacy rate of disruptive kinetic energy upon approaching the thermocline layer. The wave-current interaction and nonlinear wave-wave interaction were found to affect the process of down mix and cause the waste of inertial oscillations. Keywords: ECCO Products Used: ECCO2URL: https://www.ocean-sci.net/14/259/2018/ Other URLs:
Naughten, Kaitlin A.; Meissner, Katrin J.; Galton-Fenzi, Benjamin K.; England, Matthew H.; Timmermann, Ralph; Hellmer, Hartmut H. (2018). Future Projections of Antarctic Ice Shelf Melting Based on CMIP5 Scenarios, Journal of Climate, 13 (31), 5243-5261, 10.1175/JCLI-D-17-0854.1. Title: Future Projections of Antarctic Ice Shelf Melting Based on CMIP5 Scenarios Type: Journal article Publication: Journal of Climate Author(s): Naughten, Kaitlin A. ; Meissner, Katrin J. ; Galton-Fenzi, Benjamin K. ; England, Matthew H. ; Timmermann, Ralph ; Hellmer, Hartmut H. Year: 2018 Formatted Citation: Naughten, K. A., K. J. Meissner, B. K. Galton-Fenzi, M. H. England, R. Timmermann, and H. H. Hellmer, 2018 : future Projections of Antarctic Ice Shelf Melting Based on CMIP5 Scenarios. J. Clim., 31 ( 13 ), 5243-5261, doi:10.1175/JCLI-D-17-0854.1 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/10.1175/JCLI-D-17-0854.1 Other URLs:
Greene, Chad A.; Young, Duncan A.; Gwyther, David E.; Galton-Fenzi, Benjamin K.; Blankenship, Donald D. (2018). Seasonal dynamics of Totten Ice Shelf controlled by sea ice buttressing, The Cryosphere, 9 (12), 2869-2882, 10.5194/tc-12-2869-2018. Title: Seasonal dynamics of Totten Ice Shelf controlled by sea frost buttress Type: Journal article Publication: The Cryosphere Author(s): Greene, Chad A. ; Young, Duncan A. ; Gwyther, David E. ; Galton-Fenzi, Benjamin K. ; Blankenship, Donald D. Year: 2018 Formatted Citation: Greene, C. A., D. A. Young, D. E. Gwyther, B. K. Galton-Fenzi, and D. D. Blankenship, 2018 : seasonal worker dynamics of Totten Ice Shelf controlled by ocean ice buttress. Cryosph., 12 ( 9 ), 2869-2882, doi:10.5194/tc-12-2869-2018 Abstract: previous studies of Totten Ice Shelf have employed surface speed measurements to estimate its mass proportion and understand its sensitivities to interannual changes in climate coerce. however, supplanting measurements acquired over timescales of days to weeks may not accurately characterize long-run flow rates wherein methamphetamine speed fluctuates with the seasons. Quantifying annual mass budgets or analyzing interannual changes in frost speed requires knowing when and where observations of glacier speed could be aliased by subannual variability. here, we analyze 16 years of speed data for Totten Ice Shelf, which we generate at subannual resoluteness by applying feature-tracking algorithm to several hundred satellite image pairs. We identify a seasonal cycle characterized by a spring to autumn acceleration of more than 100myr−1 stopping point to the ice front. The amplitude of the seasonal cycle diminishes with distance from the open ocean, suggesting the presence of a resistive back stress at the ice battlefront that is strongest in winter. Springtime acceleration precedes summer surface dissolve and is not attributable to thinning from radical melt. We attribute the onset of methamphetamine shelf acceleration each spring to the personnel casualty of buttressing from the separation of seasonal landfast sea ice. ] ] > Keywords: ECCO Products Used: ECCO2URL: https://www.the-cryosphere.net/12/2869/2018/ Other URLs:
Tesdal, Jan-Erik; Abernathey, Ryan P.; Goes, Joaquim I.; Gordon, Arnold L.; Haine, Thomas W. N. (2018). Salinity Trends within the Upper Layers of the Subpolar North Atlantic, Journal of Climate, 7 (31), 2675-2698, 10.1175/JCLI-D-17-0532.1. Title: Salinity Trends within the Upper Layers of the Subpolar North Atlantic Type: Journal article Publication: Journal of Climate Author(s): Tesdal, Jan-Erik ; Abernathey, Ryan P. ; Goes, Joaquim I. ; Gordon, Arnold L. ; Haine, Thomas W. N. Year: 2018 Formatted Citation: Tesdal, J., R. P. Abernathey, J. I. Goes, A. L. Gordon, and T. W. N. Haine, 2018 : brininess Trends within the Upper Layers of the Subpolar North Atlantic. J. Clim., 31 ( 7 ), 2675-2698, doi:10.1175/JCLI-D-17-0532.1 Abstract: Examination of a image of salt products jointly suggests widespread refresh of the North Atlantic from the mid-2000s to the present. monthly brininess fields reveal negative trends that differ in magnitude and significance between westerly and eastern regions of the North Atlantic. These differences can be attributed to the large negative interannual excursions in salt in the western subpolar coil and the Labrador Sea, which are not apparent in the central or eastern subpolar coil. This study demonstrates that temporal trends in salt in the northwest ( including the Labrador Sea ) are subject to mechanisms that are distinct from those responsible for the brininess trends in the central and easterly North Atlantic. In the western subpolar coil a damaging correlation between near-surface salt and the circulation strength of the subpolar coil suggests that negative salt anomalies are connected to an intensification of the subpolar coil, which is causing increased liquefy of fresh water from the East Greenland Current and subsequent transport into the Labrador Sea during the fade season. Analyses of sea surface wind fields suggest that the potency of the subpolar coil is linked to the North Atlantic Oscillation- and Arctic Oscillation-driven changes in hoist stress curl in the eastern subpolar coil. If this swerve of decreasing brininess continues, it has the potential to enhance water column stratification, reduce upright fluxes of nutrients, and cause a decline in biological production and carbon export in the North Atlantic Ocean. Keywords: ECCO Products Used: ECCO-V4URL: http://journals.ametsoc.org/doi/10.1175/JCLI-D-17-0532.1 Other URLs:
Arbic, Brian K; Alford, Matthew H; Ansong, Joseph K; Buijsman, Maarten C; Ciotti, Robert B; Farrar, J Thomas; Hallberg, Robert W; Henze, Christopher E; Hill, Christopher N; Luecke, Conrad A; Menemenlis, Dimitris; Metzger, E Joseph; Müller, Malte; Nelson, Arin D; Nelson, Bron C; Ngodock, Hans E; Ponte, Rui M; Richman, James G; Savage, Anna C; Scott, Robert B; Shriver, Jay F; Simmons, Harper L; Souopgui, Innocent; Timko, Patrick G; Wallcraft, Allan J; Zamudio, Luis; Zhao, Zhongxiang (2018). A Primer on Global Internal Tide and Internal Gravity Wave Continuum Modeling in HYCOM and MITgcm, New Front. Oper. Oceanogr., 307-392, 10.17125/gov2018.ch13. Title: A Primer on Global Internal Tide and Internal Gravity Wave Continuum Modeling in HYCOM and MITgcm Type: Book incision Publication: New Front. Oper. Oceanogr. Author(s): Arbic, Brian K ; Alford, Matthew H ; Ansong, Joseph K ; Buijsman, Maarten C ; Ciotti, Robert B ; Farrar, J Thomas ; Hallberg, Robert W ; Henze, Christopher E ; Hill, Christopher N ; Luecke, Conrad A ; Menemenlis, Dimitris ; Metzger, E Joseph ; Müller, Malte ; Nelson, Arin D ; Nelson, Bron C ; Ngodock, Hans E ; Ponte, Rui M ; Richman, James G ; Savage, Anna C ; Scott, Robert B ; Shriver, Jay F ; Simmons, Harper L ; Souopgui, Innocent ; Timko, Patrick G ; Wallcraft, Allan J ; Zamudio, Luis ; Zhao, Zhongxiang Year: 2018 Formatted Citation: Arbic, B. K. and Coauthors, 2018 : A Primer on Global Internal Tide and Internal Gravity Wave Continuum Modeling in HYCOM and MITgcm. New Front. Oper. Oceanogr., E. P. Chassignet, A. Pascual, J. Tintoré, and J. Verron, Eds., 307-392, doi:10.17125/gov2018.ch13 Abstract: Keywords: ECCO Products Used: LLC_hires URL: Other URLs:
Zhu, Yanan; Qiu, Bo; Lin, Xiaopei; Wang, Fan (2018). Interannual Eddy Kinetic Energy Modulations in the Agulhas Return Current, Journal of Geophysical Research: Oceans, 9 (123), 6449-6462, 10.1029/2018JC014333. Title: Interannual Eddy Kinetic Energy Modulations in the Agulhas Return Current Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Zhu, Yanan ; Qiu, Bo ; Lin, Xiaopei ; Wang, Fan Year: 2018 Formatted Citation: Zhu, Y., B. Qiu, X. Lin, and F. Wang, 2018 : Interannual Eddy Kinetic Energy Modulations in the Agulhas Return Current. J. Geophys. Res. Ocean., 123 ( 9 ), 6449-6462, doi:10.1029/2018JC014333 Abstract: Interannual unevenness in the mesoscale eddy field in the Agulhas Return Current ( ARC ) of 32-42°S and 15-35°E is investigated based on satellite altimeter observations and submit calculate from the Estimating the Circulation and Climate of the Ocean, Phase II from 1993 to 2016. It is found that the interannual modulation of eddy energizing energy in the ARC area is outwardly mediated by the wind stress forcing that generates the west propagating sea airfoil stature anomalies across the South indian Ocean subtropical coil. The wind-forced ocean surface altitude anomalies influence the upstream Agulhas Current volume transports. By modulating the saturation of barotropic instability of the ARC hateful run centered around the retroflection region, the Agulhas Current inflow unevenness leads to the downstream interannual eddy energizing energy fluctuations in the ARC region. Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1029/2018JC014333 Other URLs:
Ardhuin, Fabrice; Aksenov, Yevgueny; Benetazzo, Alvise; Bertino, Laurent; Brandt, Peter; Caubet, Eric; Chapron, Bertrand; Collard, Fabrice; Cravatte, Sophie; Delouis, Jean Marc; Dias, Frederic; Dibarboure, Gérald; Gaultier, Lucile; Johannessen, Johnny; Korosov, Anton; Manucharyan, Georgy; Menemenlis, Dimitris; Menendez, Melisa; Monnier, Goulven; Mouche, Alexis; Nouguier, Frédéric; Nurser, George; Rampal, Pierre; Reniers, Ad; Rodriguez, Ernesto; Stopa, Justin; Tison, Céline; Ubelmann, Clément; van Sebille, Erik; Xie, Jiping (2018). Measuring currents, ice drift, and waves from space: The Sea surface KInematics Multiscale monitoring (SKIM) concept, Ocean Sci., 3 (14), 337-354, 10.5194/os-14-337-2018. Title: Measuring currents, ice stray, and waves from space : The Sea airfoil KInematics Multiscale monitor ( SKIM ) concept Type: Journal article Publication: Ocean Sci. Author(s): Ardhuin, Fabrice ; Aksenov, Yevgueny ; Benetazzo, Alvise ; Bertino, Laurent ; Brandt, Peter ; Caubet, Eric ; Chapron, Bertrand ; Collard, Fabrice ; Cravatte, Sophie ; Delouis, Jean Marc ; Dias, Frederic ; Dibarboure, Gérald ; Gaultier, Lucile ; Johannessen, Johnny ; Korosov, Anton ; Manucharyan, Georgy ; Menemenlis, Dimitris ; Menendez, Melisa ; Monnier, Goulven ; Mouche, Alexis ; Nouguier, Frédéric ; Nurser, George ; Rampal, Pierre ; Reniers, Ad ; Rodriguez, Ernesto ; Stopa, Justin ; Tison, Céline ; Ubelmann, Clément ; van Sebille, Erik ; Xie, Jiping Year: 2018 Formatted Citation: Ardhuin, F. and Coauthors, 2018 : Measuring currents, ice freewheel, and waves from space : The Sea surface KInematics Multiscale monitor ( SKIM ) concept. Ocean Sci., 14 ( 3 ), 337-354, doi:10.5194/os-14-337-2018 Abstract: We propose a new satellite mission that uses a near-nadir Ka-band Doppler radar to measure surface currents, ice drift and ocean waves at spatial scales of 40 km and more, with snapshots at least every day for latitudes 75 to 82, and every few days differently. The use of incidence angles at 6 and 12 degrees allows a measurement of the directional wave spectrum which yields accurate corrections of the wave-induced bias in the current measurements. The legal document principle, algorithm for current speed and mission performance are presented hera. The proposed legal document can reveal features on tropical ocean and borderline internal-combustion engine zone dynamics that are inaccessible to early measurement systems, deoxyadenosine monophosphate well as a ball-shaped monitor of the ocean mesoscale that surpasses the capability of today ‘s nadir altimeters. Measuring ocean beckon properties facilitates many applications, from wave-current interactions and air-sea fluxes to the transport and convergence of marine formative debris and appraisal of marine and coastal hazards. Keywords: ECCO Products Used: LLC_hires URL: Other URLs:
Hoteit, Ibrahim; Luo, Xiaodong; Bocquet, Marc; Kӧhl, Armin; Ait-El-Fquih, Boujemaa (2018). Data Assimilation in Oceanography: Current Status and New Directions, New Frontiers in Operational Oceanography, 465-511, 10.17125/gov2018.ch17. Title: Data Assimilation in Oceanography : stream Status and New Directions Type: Book section Publication: New Frontiers in Operational Oceanography Author(s): Hoteit, Ibrahim ; Luo, Xiaodong ; Bocquet, Marc ; Kӧhl, Armin ; Ait-El-Fquih, Boujemaa Year: 2018 Formatted Citation: Hoteit, I., X. Luo, M. Bocquet, A. Kӧhl, and B. Ait-El-Fquih, 2018 : Data Assimilation in Oceanography : current Status and New Directions. New Frontiers in Operational Oceanography, GODAE OceanView, 465-511, doi:10.17125/gov2018.ch17 Abstract: Keywords: ECCO Products Used: ECCO-V2 ; GECCOURL: http://purl.flvc.org/fsu/fd/FSU_libsubv1_scholarship_submission_1536243251_5afbe0aa Other URLs:
Wang, Tianyu; Gille, Sarah T; Mazloff, Matthew R; Zilberman, Nathalie V; Du, Yan (2018). Numerical simulations to project Argo float positions in the mid-depth and deep southwest Pacific, Journal of Atmospheric and Oceanic TechnologyJournal of Atmospheric and Oceanic Technology. Title: Numerical simulations to project Argo ice-cream soda positions in the mid-depth and deeply southwest Pacific Type: Journal article Publication: Journal of Atmospheric and Oceanic TechnologyJournal of Atmospheric and Oceanic Technology Author(s): Wang, Tianyu ; Gille, Sarah T ; Mazloff, Matthew R ; Zilberman, Nathalie V ; Du, Yan Year: 2018 Formatted Citation: Wang, T., S. T. Gille, M. R. Mazloff, N. V. Zilberman, and Y. Du, 2018 : numerical simulations to project Argo float positions in the mid-depth and deeply southwest Pacific. Journal of Atmospheric and Oceanic TechnologyJournal of Atmospheric and Oceanic Technology, hypertext transfer protocol : //doi.org/10.1175/JTECH-D-17-0214.1 Abstract: Argo ice-cream soda trajectories are simulated in the Southwest Pacific Basin ( 170 { \textdegree } E-165 { \textdegree } W, 25 { \textdegree } S-45 { \textdegree } S ) using speed fields from a 1/12 { \textdegree } southerly Ocean model and a Lagrangian particle tracking model programmed to represent the vertical motions of profiling Argo floats. The organization is applied to simulate both core Argo floats ( typically parked at 1000-m astuteness and profiling to 2000-m depth ) and Deep Argo floats ( parked 500 m above the seafloor ). The finish is to estimate Probability Density Functions ( PDFs ) predicting future float positions. Differences are expected in the trajectory statistics, largely because of limitations in the temporal role and spatial resolution of the model fields and uncertainties associated with a random walk part included in the atom advection scheme to represent this unsolved unevenness. however, the congress of racial equality Argo float displacements over ~100-day clock intervals are largely coherent with the derive PDFs, peculiarly in regions with stable mid-layer flows. For the Deep Argo floats, which are released in the open ocean and parked near the bottom, the simulations predict an average total translation of less than 50 km within 100 days, in good agreement with the Deep Argo floats deployed as depart of a fender cogitation. The sketch explores both the representativeness and the predictability of float displacements, with an aim to contribute to planning for the float observing system.AbstractArgo float trajectories are simulated in the Southwest Pacific Basin ( 170 { \textdegree } E-165 { \textdegree } W, 25 { \textdegree } S-45 { \textdegree } S ) using speed fields from a 1/12 { \textdegree } southern Ocean model and a Lagrangian atom tracking model programmed to represent the upright motions of profiling Argo floats. The system is applied to simulate both core Argo floats ( typically parked at 1000-m depth and profiling to 2000-m depth ) and Deep Argo floats ( parked 500 m above the seafloor ). The goal is to estimate Probability Density Functions ( PDFs ) predicting future float positions. Differences are expected in the trajectory statistics, largely because of limitations in the temporal and spatial resolution of the model fields and uncertainties associated with a random walk of life part included in the particle advection outline to represent this unresolved unevenness. however, the core Argo float displacements over ~100-day time intervals are largely coherent with the derive PDFs, peculiarly in regions with stable mid-layer flows. For the Deep Argo floats, which are released in the assailable ocean and parked near the bottomland, the simulations predict an average total supplanting of less than 50 km within 100 days, in good agreement with the Deep Argo floats deployed as part of a navigate study. The study explores both the representativeness and the predictability of float displacements, with an target to contribute to planning for the float observing organization. Keywords: ECCO Products Used: SOSEURL: https://doi.org/10.1175/JTECH-D-17-0214.1 Other URLs:
Foukal, Nicholas P; Lozier, M Susan (2018). Examining the Origins of Ocean Heat Content Variability in the Eastern North Atlantic Subpolar Gyre, Geophysical Research Letters, 20 (45), 11,211-275,283, 10.1029/2018GL079122. Title: Examining the Origins of Ocean Heat Content Variability in the Eastern North Atlantic Subpolar Gyre Type: Journal article Publication: Geophysical Research Letters Author(s): Foukal, Nicholas P ; Lozier, M Susan Year: 2018 Formatted Citation: Foukal, N. P., and M. S. Lozier, 2018 : Examining the Origins of Ocean Heat Content Variability in the Eastern North Atlantic Subpolar Gyre. Geophys. Res. Lett., 45 ( 20 ), 11,211-275,283, doi:10.1029/2018GL079122 Abstract: We analyze sources of ocean heat content ( OHC ) unevenness in the eastern North Atlantic subpolar coil from both Eulerian and Lagrangian perspectives within two ocean simulations from 1990 to 2015. Heat budgets reveal that while the OHC seasonal motorbike is driven by air-sea fluxes, interannual OHC unevenness is driven by both air-sea fluxes and the divergence of ocean heat tape drive, the latter of which is dominated by the oceanic flux through the southern face of the study area. Lagrangian trajectories initialized along the southerly boldness and run backward in clock time indicate that interannual unevenness in the subtropical-origin volume flux ( i.e., the upper limb of the overturning circulation ) drives variability in the temperature flux through the southerly face. As such, the heat carried by the spell subtropical waters is an important component of the easterly subpolar coil heat budget on interannual time scales. Keywords: Lagrangian trajectories, Overturning circulation, Subpolar coil, Subtropical coil, hotness budget, ocean heat content ECCO Products Used: ECCO-V4URL: https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2018GL079122 Other URLs:
Porter, David F.; Tinto, Kirsty J.; Boghosian, Alexandra L.; Csatho, Beata M.; Bell, Robin E.; Cochran, James R. (2018). Identifying Spatial Variability in Greenland’s Outlet Glacier Response to Ocean Heat, Frontiers in Earth Science (6), 10.3389/feart.2018.00090. Title: Identifying Spatial Variability in Greenland ’ s Outlet Glacier Response to Ocean Heat Type: Journal article Publication: Frontiers in Earth Science Author(s): Porter, David F. ; Tinto, Kirsty J. ; Boghosian, Alexandra L. ; Csatho, Beata M. ; Bell, Robin E. ; Cochran, James R. Year: 2018 Formatted Citation: Porter, D. F., K. J. Tinto, A. L. Boghosian, B. M. Csatho, R. E. Bell, and J. R. Cochran, 2018 : Identifying Spatial Variability in Greenland ‘s Outlet Glacier Response to Ocean Heat. Frontiers in Earth Science, 6, doi:10.3389/feart.2018.00090 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://www.frontiersin.org/article/10.3389/feart.2018.00090/full Other URLs:
Vigo, María; García-García, David; Sempere, María; Chao, Ben (2018). 3D Geostrophy and Volume Transport in the Southern Ocean, Remote Sensing, 5 (10), 715, 10.3390/rs10050715. Title: 3D Geostrophy and volume Transport in the southern Ocean Type: Journal article Publication: Remote Sensing Author(s): Vigo, María ; García-García, David ; Sempere, María ; Chao, Ben Year: 2018 Formatted Citation: Vigo, M., D. García-García, M. Sempere, and B. Chao, 2018 : 3D Geostrophy and volume Transport in the southerly Ocean. Remote Sensing, 10 ( 5 ), 715, doi:10.3390/rs10050715 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: http://www.mdpi.com/2072-4292/10/5/715 Other URLs:
Zhang, Ying; Feng, Ming; Du, Yan; Phillips, Helen E; Bindoff, Nathaniel L; McPhaden, Michael J (2018). Strengthened Indonesian Throughflow Drives Decadal Warming in the Southern Indian Ocean, Geophysical Research Letters, 12 (45), 6167-6175, 10.1029/2018GL078265. Title: Strengthened indonesian Throughflow Drives Decadal Warming in the Southern Indian Ocean Type: Journal article Publication: Geophysical Research Letters Author(s): Zhang, Ying ; Feng, Ming ; Du, Yan ; Phillips, Helen E ; Bindoff, Nathaniel L ; McPhaden, Michael J Year: 2018 Formatted Citation: Zhang, Y., M. Feng, Y. Du, H. E. Phillips, N. L. Bindoff, and M. J. McPhaden, 2018 : Strengthened indonesian Throughflow Drives Decadal Warming in the Southern indian Ocean. Geophys. Res. Lett., 45 ( 12 ), 6167-6175, doi:10.1029/2018GL078265 Abstract: remarkable warm of the Southern amerind Ocean during the late two decades is assessed using a estrus budget analysis based on the Estimating the Circulation and Climate of the Ocean interpretation 4 release 3 model results. The annual mean temperature averaged in the upper-700 m Southern Indian Ocean during 1998-2015 has experienced significant warming at a rate of 1.03 × 10−2 °C/year. A heat budget psychoanalysis indicates that the addition is by and large driven by decrease cooling from internet air-sea heating system flux and increased warming from heat advection. Increased indonesian Throughflow advection is the largest subscriber to warming the upper 700 megabyte of the Southern Indian Ocean, while the decrease of surface disruptive heat flux is of secondary importance. These results expand our understand of the decadal estrus libra in the indian Ocean and of Indo-Pacific decadal climate variability. Keywords: Ekman transport, indonesian Throughflow, air-sea magnetic field, heat budget, ocean limit current, upper ocean ECCO Products Used: ECCO-V4URL: https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2018GL078265 Other URLs:
Śliwińska, Justyna; Wińska, Małgorzata; Nastula, Jolanta (2018). Terrestrial water storage variations and their effect on polar motion, Acta Geophysica, 10.1007/s11600-018-0227-x. Title: Terrestrial urine repositing variations and their consequence on arctic motion Type: Journal article Publication: Acta Geophysica Author(s): Śliwińska, Justyna ; Wińska, Małgorzata ; Nastula, Jolanta Year: 2018 Formatted Citation: Śliwińska, J., M. Wińska, and J. Nastula, 2018 : terrestrial water memory variations and their effect on polar movement. Acta Geophysica, doi:10.1007/s11600-018-0227-x Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: http://link.springer.com/10.1007/s11600-018-0227-x Other URLs:
Nakayama, Yoshihiro; Menemenlis, Dimitris; Zhang, Hong; Schodlok, Michael; Rignot, Eric (2018). Origin of Circumpolar Deep Water intruding onto the Amundsen and Bellingshausen Sea continental shelves, Nat. Commun., 1 (9), 3403, 10.1038/s41467-018-05813-1. Title: Origin of Circumpolar Deep Water intruding onto the Amundsen and Bellingshausen Sea continental shelves Type: Journal article Publication: Nat. Commun. Author(s): Nakayama, Yoshihiro ; Menemenlis, Dimitris ; Zhang, Hong ; Schodlok, Michael ; Rignot, Eric Year: 2018 Formatted Citation: Nakayama, Y., D. Menemenlis, H. Zhang, M. Schodlok, and E. Rignot, 2018 : origin of Circumpolar Deep Water intruding onto the Amundsen and Bellingshausen Sea continental shelves. Nat. Commun., 9 ( 1 ), 3403, doi:10.1038/s41467-018-05813-1 Abstract: Melting of West Antarctic internal-combustion engine shelves is enhanced by Circumpolar Deep Water ( CDW ) intruding onto the Amundsen and Bellingshausen Seas ( ABS ) continental shelves. Despite existing studies of cross-shelf and on-shelf CDW transports, CDW pathways onto the ABS originating from far offshore have never been investigated. here, we investigate CDW pathways onto the ABS using a regional ocean model. Simulated CDW tracers from a zonal part across 67°S ( S04P ) circulate along the Antarctic Circumpolar Current ( ACC ) and Ross Gyre ( RG ) and travel into ABS continental shelf after 3-5 years, but source locations are shifted westbound by $ ~ $ 900 kilometer along S04P in 2001-2006 compared to 2009-2014. We find that simulated on-and off-shelf CDW is $ ~ $ 0.1-0.2 °C quick in the 2009-2014 case than in the 2001-2006 case together with changes in fake ocean circulation. These differences are primarily caused by lateral, preferably than surface, boundary conditions, implying that large-scale atmospheric and ocean circulations are able to control CDW pathways and therefore off-and on-shelf CDW properties. Keywords: ECCO Products Used: IceSheet ; LLC270 ; LLC_hiresURL: http://www.nature.com/naturecommunications Other URLs:
Volkov, Denis L.; Baringer, Molly; Smeed, David; Johns, William; Landerer, Felix W. (2018). Teleconnection between the Atlantic Meridional Overturning Circulation and sea level in the Mediterranean Sea, Journal of Climate, JCLI-D-18-0474.1, 10.1175/JCLI-D-18-0474.1. Title: Teleconnection between the Atlantic Meridional Overturning Circulation and ocean level in the Mediterranean Sea Type: Journal article Publication: Journal of Climate Author(s): Volkov, Denis L. ; Baringer, Molly ; Smeed, David ; Johns, William ; Landerer, Felix W. Year: 2018 Formatted Citation: Volkov, D. L., M. Baringer, D. Smeed, W. Johns, and F. W. Landerer, 2018 : Teleconnection between the Atlantic Meridional Overturning Circulation and sea level in the Mediterranean Sea. J. Clim., JCLI-D-18-0474.1, doi:10.1175/JCLI-D-18-0474.1 Abstract: Keywords: ECCO Products Used: URL: http://journals.ametsoc.org/doi/10.1175/JCLI-D-18-0474.1 Other URLs:
Hutter, Nils; Losch, Martin; Menemenlis, Dimitris (2018). Scaling Properties of Arctic Sea Ice Deformation in a High-Resolution Viscous-Plastic Sea Ice Model and in Satellite Observations, Journal of Geophysical Research: Oceans, 1 (123), 672-687, 10.1002/2017JC013119. Title: Scaling Properties of Arctic Sea Ice Deformation in a high-resolution Viscous-Plastic Sea Ice Model and in Satellite Observations Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Hutter, Nils ; Losch, Martin ; Menemenlis, Dimitris Year: 2018 Formatted Citation: Hutter, N., M. Losch, and D. Menemenlis, 2018 : Scaling Properties of Arctic Sea Ice Deformation in a high-resolution Viscous-Plastic Sea Ice Model and in Satellite Observations. J. Geophys. Res. Ocean., 123 ( 1 ), 672-687, doi:10.1002/2017JC013119 Abstract: Sea internal-combustion engine models with the traditional viscous-plastic ( VP ) rheology and identical small horizontal grid space can resolve leads and deformation rates localized along Linear Kinematic Features ( LKF ). In a 1 kilometer pan-Arctic sea ice-ocean pretense, the minor sea frost deformations are evaluated with a scale analysis in relation back to satellite observations of the Envisat Geophysical Processor System ( EGPS ) in the Central Arctic. A newfangled coupled scale psychoanalysis for data on Eulerian grids is used to determine the spatial and temporal role scaling and the match between temporal and spatial scales. The spatial scaling of the model sea methamphetamine deformation implies multifractality. It is besides coupled to temporal scales and varies realistically by region and season. The agreement of the spatial scaling with satellite observations challenges previous results with VP models at coarser solution, which did not reproduce the respect scale. The temporal scale analysis shows that the VP model, as configured in this 1 kilometer simulation, does not amply resolve the intermittence of ocean ice contortion that is observed in satellite data. Keywords: Arctic Ocean, high-resolution model, scale, sea frosting contortion, ocean ice rheology ECCO Products Used: LLC_hires ; SeaIceURL: https://doi.org/10.1002/2017JC013119 Other URLs:
Jones, Daniel C; Forget, Gael; Sinha, Bablu; Josey, Simon A; Boland, Emma J D; Meijers, Andrew J S; Shuckburgh, Emily (2018). Local and Remote Influences on the Heat Content of the Labrador Sea: An Adjoint Sensitivity Study, Journal of Geophysical Research: Oceans, 4 (123), 2646-2667, 10.1002/2018JC013774. Title: Local and Remote Influences on the Heat Content of the Labrador Sea : An Adjoint Sensitivity Study Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Jones, Daniel C ; Forget, Gael ; Sinha, Bablu ; Josey, Simon A ; Boland, Emma J D ; Meijers, Andrew J S ; Shuckburgh, Emily Year: 2018 Formatted Citation: Jones, D. C., G. Forget, B. Sinha, S. A. Josey, E. J. D. Boland, A. J. S. Meijers, and E. Shuckburgh, 2018 : local and Remote Influences on the Heat Content of the Labrador Sea : An Adjoint Sensitivity Study. J. Geophys. Res. Ocean., 123 ( 4 ), 2646-2667, doi:10.1002/2018JC013774 Abstract: The Labrador Sea is one of the few regions on the planet where the inside ocean can exchange heat immediately with the standard atmosphere via strong, localized, winter convection, with possible implications for the state of North Atlantic climate and global surface warming. Using an observationally constrained ocean adjoint model, we find that annual-mean Labrador Sea heat content is sensible to temperature/salinity changes ( 1 ) along likely source water pathways ( for example, the subpolar coil, the North Atlantic Current, the Gulf Stream ) and ( 2 ) along the west african and european shelves, which are not significant source water system regions for the Labrador Sea. The west african coastal/shelf allowance mechanism, which may be excited by changes in along-shelf fart tension, involves press anomalies that propagate along a coastal waveguide toward Greenland, changing the across-shelf press gradient in the North Atlantic and altering heat overlap in the Labrador Sea. We besides find that nonlocal ( in space and time ) heat fluxes ( for example, in the Irminger Sea, the seas south of Iceland ) can have a potent impingement on Labrador Sea heat content. agreement and predicting the state of the Labrador Sea and its potential impacts on North Atlantic climate and ball-shaped open thaw will require monitor of oceanic and atmospheric properties at distant sites in the Irminger Sea, the subpolar coil, and along the west african and european shelf/coast organization, among others. Keywords: Labrador Sea, adjoint model, adjoint sensitivity, heating system content, inflame flux, teleconnection ECCO Products Used: ECCO-V4 ; adjointURL: https://doi.org/10.1002/2018JC013774 Other URLs:
Gruszczynska, Marta; Rosat, Severine; Klos, Anna; Gruszczynski, Maciej; Bogusz, Janusz (2018). Multichannel Singular Spectrum Analysis in the Estimates of Common Environmental Effects Affecting GPS Observations, Pure and Applied Geophysics, 5 (175), 1805-1822, 10.1007/s00024-018-1814-0. Title: Multichannel Singular Spectrum Analysis in the Estimates of Common Environmental Effects Affecting GPS Observations Type: Journal article Publication: Pure and Applied Geophysics Author(s): Gruszczynska, Marta ; Rosat, Severine ; Klos, Anna ; Gruszczynski, Maciej ; Bogusz, Janusz Year: 2018 Formatted Citation: Gruszczynska, M., S. Rosat, A. Klos, M. Gruszczynski, and J. Bogusz, 2018 : Multichannel Singular Spectrum Analysis in the Estimates of Common Environmental Effects Affecting GPS Observations. Pure and Applied Geophysics, 175 ( 5 ), 1805-1822, doi:10.1007/s00024-018-1814-0 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://link.springer.com/10.1007/s00024-018-1814-0 Other URLs:
Su, Zhan; Wang, Jinbo; Klein, Patrice; Thompson, Andrew F; Menemenlis, Dimitris (2018). Ocean submesoscales as a key component of the global heat budget, Nat. Commun., 775 (9), 1-8, 10.1038/s41467-018-02983-w. Title: Ocean submesoscales as a key part of the global inflame budget Type: Journal article Publication: Nat. Commun. Author(s): Su, Zhan ; Wang, Jinbo ; Klein, Patrice ; Thompson, Andrew F ; Menemenlis, Dimitris Year: 2018 Formatted Citation: Su, Z., J. Wang, P. Klein, A. F. Thompson, and D. Menemenlis, 2018 : ocean submesoscales as a key component of the ball-shaped heat budget. Nat. Commun., 9 ( 775 ), 1-8, doi:10.1038/s41467-018-02983-w Abstract: Recent studies highlight that oceanic motions associated with horizontal scales smaller than 50 km, defined here as submesoscales, lead to anomalous upright hotness fluxes from cold to warmer waters. This singular transport place is not captured in climate models that have insufficient resoluteness to simulate these submesoscale dynamics. here, we use an ocean model with an unprecedented settlement that, for the first meter, globally resolves sub-mesoscale heat tape drive. Upper-ocean submesoscale turbulence produces a systematically-upward heat transport that is five times larger than mesoscale heat ecstasy, with winter-time averages up to 100 W/m 2 for mid-latitudes. Compared to a lower-resolution model, submesoscale heat transport warms the ocean open up to 0.3 °C and produces an up annual-mean air-sea heating system flux anomaly of 4-10 W/m 2 at mid-latitudes. These results indicate that submesoscale dynamics are critical to the transport of heat between the ocean inside and the atmosphere, and are thus a winder part of the Earth ‘s climate. Keywords: ECCO Products Used: LLC_hiresURL: http://dx.doi.org/10.1038/s41467-018-02983-w Other URLs:
Swart, S; Johnson, K; Mazloff, M R; Meijers, A; Meredith, M P; Newman, L; Sallée, Jean-Baptiste (2018). Southern Ocean in State of the Climate in 2017, Bull. Amer. Meteor. Soc. (99). Title: Southern Ocean in State of the Climate in 2017 Type: Journal article Publication: Bull. Amer. Meteor. Soc. Author(s): Swart, S ; Johnson, K ; Mazloff, M R ; Meijers, A ; Meredith, M P ; Newman, L ; Sallée, Jean-Baptiste Year: 2018 Formatted Citation: Swart, S., K. Johnson, M. R. Mazloff, A. Meijers, M. P. Meredith, L. Newman, and J. Sallée, 2018 : southerly Ocean in State of the Climate in 2017. Bull. Amer. Meteor. Soc., 99 Abstract: Keywords: ECCO Products Used: SOSE URL: Other URLs:
McParland, Erin L.; Levine, Naomi M. (2018). The role of differential DMSP production and community composition in predicting variability of global surface DMSP concentrations, Limnology and Oceanography, 10.1002/lno.11076. Title: The character of differential DMSP production and community typography in predicting unevenness of global coat DMSP concentrations Type: Journal article Publication: Limnology and Oceanography Author(s): McParland, Erin L. ; Levine, Naomi M. Year: 2018 Formatted Citation: McParland, E. L., and N. M. Levine, 2018 : The function of differential DMSP production and community constitution in predicting variability of global surface DMSP concentrations. Limnology and Oceanography, doi:10.1002/lno.11076 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/lno.11076 Other URLs:
Yang, Peiran; Jing, Zhao; Wu, Lixin (2018). An Assessment of Representation of Oceanic Mesoscale Eddy-Atmosphere Interaction in the Current Generation of General Circulation Models and Reanalyses, Geophysical Research Letters, 21 (45), 11,856-11,865, 10.1029/2018GL080678. Title: An judgment of Representation of Oceanic Mesoscale Eddy-Atmosphere Interaction in the Current Generation of General Circulation Models and Reanalyses Type: Journal article Publication: Geophysical Research Letters Author(s): Yang, Peiran ; Jing, Zhao ; Wu, Lixin Year: 2018 Formatted Citation: Yang, P., Z. Jing, and L. Wu, 2018 : An judgment of Representation of Oceanic Mesoscale Eddy-Atmosphere Interaction in the Current Generation of General Circulation Models and Reanalyses. Geophys. Res. Lett., 45 ( 21 ), 11,856-11,865, doi:10.1029/2018GL080678 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1029/2018GL080678 Other URLs:
Ungermann, Mischa; Losch, Martin (2018). An Observationally Based Evaluation of Subgrid Scale Ice Thickness Distributions Simulated in a Large-Scale Sea Ice-Ocean Model of the Arctic Ocean, Journal of Geophysical Research: Oceans, 11 (123), 8052-8067, 10.1029/2018JC014022. Title: An Observationally Based Evaluation of Subgrid Scale Ice Thickness Distributions Simulated in a large-scale Sea Ice-Ocean Model of the Arctic Ocean Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Ungermann, Mischa ; Losch, Martin Year: 2018 Formatted Citation: Ungermann, M., and M. Losch, 2018 : An Observationally Based Evaluation of Subgrid Scale Ice Thickness Distributions Simulated in a large-scale Sea Ice-Ocean Model of the Arctic Ocean. J. Geophys. Res. Ocean., 123 ( 11 ), 8052-8067, doi:10.1029/2018JC014022 Abstract: Keywords: ECCO Products Used: ECCO2 ; SeaIceURL: http://doi.wiley.com/10.1029/2018JC014022 Other URLs:
Bashmachnikov, I. L.; Yurova, A. Yu.; Bobylev, L. P.; Vesman, A. V. (2018). Seasonal and Interannual Variations of Heat Fluxes in the Barents Sea Region, Izvestiya, Atmospheric and Oceanic Physics, 2 (54), 213-222, 10.1134/S0001433818020032. Title: Seasonal and Interannual Variations of Heat Fluxes in the Barents Sea Region Type: Journal article Publication: Izvestiya, Atmospheric and Oceanic Physics Author(s): Bashmachnikov, I. L. ; Yurova, A. Yu. ; Bobylev, L. P. ; Vesman, A. V. Year: 2018 Formatted Citation: Bashmachnikov, I. L., A. Y. Yurova, L. P. Bobylev, and A. V. Vesman, 2018 : seasonal worker and Interannual Variations of Heat Fluxes in the Barents Sea Region. Izvestiya, Atmospheric and Oceanic Physics, 54 ( 2 ), 213-222, doi:10.1134/S0001433818020032 Abstract: © 2018, Pleiades Publishing, Ltd. Seasonal and interannual variations in adjective heat fluxes in the ocean ( dQ oc ) and the convergence of advective heat fluxes in the standard atmosphere ( dQ asynchronous transfer mode ) in the Barents Sea area have been investigated over the period of 1993-2012 using the results of the MIT regional eddy-permitting model and ERA-Interim atmospheric reanalysis. Wavelet analysis and curious spectrum analysis are used to reveal concealed periodicities. seasonal worker 2- to 4- and 5- to 8-year cycles are revealed in the dQ oc and dQ cash machine data. It is besides found that seasonal worker variations in dQ oc are chiefly determined by the integrate book fluxes through the western boundary of the Barents Sea, whereas the 20-year vogue is determined by the temperature variation of the transport water. A cross-wavelet analysis of dQ oc and dQ cash machine in the Barents Sea region shows that the seasonal worker variations in dQ oc and dQ atm are closely in-phase, while their interannual variations are out-of-phase. It is concluded that the washbasin of the Barents Sea plays an crucial character in maintaining the feedback mechanism ( the Bjerknes compensation ) of the ocean-atmosphere arrangement in the Arctic region. Keywords: and the atmosphere, barents sea, bjerknes compensation mechanism, coupled, cycles in the ocean, fluxes, mit eddy-permitting ocean model, oceanic and atmospheric heat, curious spec-, ripple psychoanalysis ECCO Products Used: ECCO2URL: http://link.springer.com/10.1134/S0001433818020032 Other URLs:
Amrhein, Daniel E.; Wunsch, Carl; Marchal, Olivier; Forget, Gael (2018). A global glacial ocean state estimate constrained by upper-ocean temperature proxies, Journal of Climate, 19 (31), 8059-8079, 10.1175/JCLI-D-17-0769.1. Title: A ball-shaped glacial ocean state of matter estimate constrained by upper-ocean temperature proxies Type: Journal article Publication: Journal of Climate Author(s): Amrhein, Daniel E. ; Wunsch, Carl ; Marchal, Olivier ; Forget, Gael Year: 2018 Formatted Citation: Amrhein, D. E., C. Wunsch, O. Marchal, and G. Forget, 2018 : A global arctic ocean express estimate constrained by upper-ocean temperature proxies. J. Clim., 31 ( 19 ), 8059-8079, doi:10.1175/JCLI-D-17-0769.1 Abstract: We use the method of least squares with Lagrange multipliers to fit an ocean general circulation exemplary to the Multiproxy Approach for the Reconstruction of the Glacial Ocean Surface ( MARGO ) estimate of near ocean surface temperature ( NSST ) at the last Glacial Maximum ( LGM, ca. 23 – 19 thousand years ago ). Compared to a modern simulation, the resulting ball-shaped, last-glacial ocean state calculate, which fits the MARGO data within uncertainties in a free-running pair ocean-sea ice simulation, has ball-shaped mean NSSTs that are 2°C lower and greater sea ice extent in all seasons in both Northern and Southern Hemispheres. Increased brine rejection by sea frost formation in the southerly Ocean contributes to a stronger abysmal stratification set chiefly by salt, qualitatively coherent with concentrate fluid measurements. The upper cell of the glacial Atlantic revolutionize circulation is deeper and stronger. Dye release experiments show alike distributions of Southern Ocean source waters in the frigid and thousand … Keywords: Abyssal circulation, Inverse methods, Ocean, Ocean models, Paleoclimate, Sea surface temperature ECCO Products Used: ECCO-V4 URL: Other URLs:
Le Fouest, Vincent; Matsuoka, Atsushi; Manizza, Manfredi; Shernetsky, Mona; Tremblay, Bruno; Babin, Marcel (2018). Towards an assessment of riverine dissolved organic carbon in surface waters of the western Arctic Ocean based on remote sensing and biogeochemical modeling, Biogeosciences, 5 (15), 1335-1346, 10.5194/bg-15-1335-2018. Title: Towards an assessment of riverine dissolved organic carbon paper in surface waters of the westerly Arctic Ocean based on outside sense and biogeochemical model Type: Journal article Publication: Biogeosciences Author(s): Le Fouest, Vincent ; Matsuoka, Atsushi ; Manizza, Manfredi ; Shernetsky, Mona ; Tremblay, Bruno ; Babin, Marcel Year: 2018 Formatted Citation: Le Fouest, V., A. Matsuoka, M. Manizza, M. Shernetsky, B. Tremblay, and M. Babin, 2018 : Towards an assessment of riverine dissolved organic carbon in come on waters of the western Arctic Ocean based on distant sense and biogeochemical model. Biogeosciences, 15 ( 5 ), 1335-1346, doi:10.5194/bg-15-1335-2018 Abstract: Future climate warm of the Arctic could potentially enhance the load of terrigenous dissolved organic carbon paper ( tDOC ) of Arctic rivers due to increased carbon mobilization within watersheds. A greater flux density of tDOC might impact the biogeochemical processes of the coastal Arctic Ocean ( AO ) and ultimately its capacity to absorb atmospheric CO2. In this analyze, we show that sea-surface tDOC concentrations simulated by a physical-biogeochemical conjugate model in the canadian Beaufort Sea for 2003-2011 compare favorably with estimates retrieved by satellite imagination. Our results suggest that, over spring-summer, tDOC of riverine lineage contributes to 35 % of primary production and that an equivalent of ∼10 % of tDOC is exported westwards with the potential of fueling the biological production of the eastern Alaskan nearshore waters. The combination of model and satellite data provides promise results to extend this work to the entire AO therefore as to quantify, in conjunction with in situ data, the expected changes in tDOC fluxes and their potential impingement on the AO biogeochemistry at basin scale. Keywords: ECCO Products Used: ECCO2URL: https://www.biogeosciences.net/15/1335/2018/ Other URLs:
Mu, Longjiang; Losch, Martin; Yang, Qinghua; Ricker, Robert; Loza, Svetlana N.; Nerger, Lars (2018). Arctic-Wide Sea Ice Thickness Estimates From Combining Satellite Remote Sensing Data and a Dynamic Ice-Ocean Model with Data Assimilation During the CryoSat-2 Period, Journal of Geophysical Research: Oceans, 10.1029/2018JC014316. Title: Arctic-Wide Sea Ice Thickness Estimates From Combining Satellite Remote Sensing Data and a Dynamic Ice-Ocean Model with Data Assimilation During the CryoSat-2 Period Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Mu, Longjiang ; Losch, Martin ; Yang, Qinghua ; Ricker, Robert ; Loza, Svetlana N. ; Nerger, Lars Year: 2018 Formatted Citation: Mu, L., M. Losch, Q. Yang, R. Ricker, S. N. Loza, and L. Nerger, 2018 : Arctic-Wide Sea Ice Thickness Estimates From Combining Satellite Remote Sensing Data and a Dynamic Ice-Ocean Model with Data Assimilation During the CryoSat-2 Period. J. Geophys. Res. Ocean., doi:10.1029/2018JC014316 Abstract: Keywords: ECCO Products Used: ECCO2 ; SeaIceURL: http://doi.wiley.com/10.1029/2018JC014316 Other URLs:
Ponte, Rui M; Quinn, Katherine J; Piecuch, Christopher G (2018). Accounting for Gravitational Attraction and Loading Effects from Land Ice on Absolute Sea Level, Journal of Atmospheric and Oceanic Technology, 2 (35), 405-410, 10.1175/JTECH-D-17-0092.1. Title: Accounting for Gravitational Attraction and Loading Effects from Land Ice on Absolute Sea Level Type: Journal article Publication: Journal of Atmospheric and Oceanic Technology Author(s): Ponte, Rui M ; Quinn, Katherine J ; Piecuch, Christopher G Year: 2018 Formatted Citation: Ponte, R. M., K. J. Quinn, and C. G. Piecuch, 2018 : report for Gravitational Attraction and Loading Effects from Land Ice on Absolute Sea Level. Journal of Atmospheric and Oceanic Technology, 35 ( 2 ), 405-410, doi:10.1175/JTECH-D-17-0092.1 Abstract: Gravitational attraction and load ( GAL ) effects associated with ongoing long-run changes in land frosting are expected to cause spatially varying trends in absolute sea level ζ, as measured by satellite altimeters. The largest spatial gradients in ζ trends, predicted from solving the sea grade equation using GRACE retrievals of mass distribution over land for the time period 2005-15, occur near Greenland and West Antarctica, consistent with a impregnable local land frost personnel casualty. Misinterpreting the estimated static GAL trends in ζ as dynamic blackmail gradients can lead to hearty errors in large-scale geostrophic transports across the Southern Ocean and the subpolar North Atlantic over the analyze ten. South of Greenland, where altimeter ocean level and hydrography ( Argo ) data coverage is adept, the remainder ζ minus steric stature trends are like in order of magnitude and sign to the gravitationally based predictions. In addition, estimated GAL-related trends are as large-if not larger than-other factors, such as deep steric altitude, moral force bottom pressure, and arctic isostatic recoil. therefore, accounting for static GAL effects on ζ records, which are normally neglected in oceanographic studies, seems crucial for a quantitative interpretation of the respect ζ trends. Keywords: ECCO Products Used: ECCO-V4URL: https://doi.org/10.1175/JTECH-D-17-0092.1 Other URLs:
Bigdeli, A.; Hara, T.; Loose, B.; Nguyen, A. T. (2018). Wave Attenuation and Gas Exchange Velocity in Marginal Sea Ice Zone, Journal of Geophysical Research: Oceans, 3 (123), 2293-2304, 10.1002/2017JC013380. Title: Wave Attenuation and Gas Exchange Velocity in Marginal Sea Ice Zone Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Bigdeli, A. ; Hara, T. ; Loose, B. ; Nguyen, A. T. Year: 2018 Formatted Citation: Bigdeli, A., T. Hara, B. Loose, and A. T. Nguyen, 2018 : Wave Attenuation and Gas Exchange Velocity in Marginal Sea Ice Zone. J. Geophys. Res. Ocean., 123 ( 3 ), 2293-2304, doi:10.1002/2017JC013380 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2017JC013380 Other URLs:
Stewart, Andrew L; Klocker, Andreas; Menemenlis, Dimitris (2018). Circum-Antarctic Shoreward Heat Transport Derived From an Eddy- and Tide-Resolving Simulation, Geophysical Research Letters, 2 (45), 834-845, 10.1002/2017GL075677. Title: Circum-Antarctic Shoreward Heat Transport Derived From an Eddy- and Tide-Resolving model Type: Journal article Publication: Geophysical Research Letters Author(s): Stewart, Andrew L ; Klocker, Andreas ; Menemenlis, Dimitris Year: 2018 Formatted Citation: Stewart, A. L., A. Klocker, and D. Menemenlis, 2018 : Circum-Antarctic Shoreward Heat Transport Derived From an Eddy- and Tide-Resolving Simulation. Geophys. Res. Lett., 45 ( 2 ), 834-845, doi:10.1002/2017GL075677 Abstract: Almost all heat reaching the bases of Antarctica ‘s internal-combustion engine shelves originates from ardent Circumpolar Deep Water in the open Southern Ocean. This study quantifies the roles of average and transient flows in transporting heat across about the stallion Antarctic continental slope and ledge using an ocean/sea ice model run at eddy- and tide-resolving ( 1/48° ) horizontal settlement. Heat transfer by transient flows is approximately attributed to eddies and tides via a decomposition into time scales shorter than and longer than 1 sidereal day, respectively. It is shown that eddies transfer heat across the continental gradient ( ocean depths greater than 1,500 megabyte ), but tides produce a stronger inshore heating system flux across the shelf interruption ( ocean depths between 500 m and 1,000 m ). however, the tidal heat fluxes are approximately compensated by beggarly flows, leaving the eddy inflame flow to balance the net income inshore estrus transportation. The eddy-driven cross-slope overturning circulation is besides unaccented to account for the eddy heat flux. This suggests that isopycnal eddy rousing is the principal mechanism of inshore heating system transport around Antarctica, though likely modulated by tides and coat coerce. Keywords: Antarctic margins, eddies, heat magnetic field, model, overturning circulation, tides ECCO Products Used: LLC_hiresURL: https://doi.org/10.1002/2017GL075677 Other URLs:
Zhan, Peng (2018). Properties, Mechanisms and Predictability of Eddies in the Red Sea. Title: Properties, Mechanisms and Predictability of Eddies in the Red Sea Type: thesis Publication: Author(s): Zhan, Peng Year: 2018 Formatted Citation: Zhan, P., 2018 : Properties, Mechanisms and Predictability of Eddies in the Red Sea., 163 pp. doi:10.25781/KAUST-1IARG. Abstract: Eddies are one of the key features of the Red Sea circulation. They are not only crucial for energy conversion among dynamics at different scales, but besides for materials transport across the washbasin. This dissertation focuses on studying the characteristics of Red Sea eddies, including their temporal and spatial properties, their energy budget, the mechanisms of their evolution, and their predictability. Remote sensing data, in-situ observations, the oceanic general circulation mannequin, and data acculturation techniques were employed in this thesis. The eddies in the Red Sea were first identified using altimeter data by applying an improved winding-angle method, based on which the statistical properties of those eddies were derived. The results suggested that eddies occur more frequently in the cardinal river basin of the Red Sea and exhibit a significant seasonal worker variation. The mechanism of the eddies ‘ development, particularly the eddy kinetic energy budget, were then investigated based on the outputs of a long-run eddy resolving numeric model configured for the Red Sea with naturalistic wedge. examination of the energy budget revealed that the eddies acquire the huge majority of kinetic energy through conversion of eddy available likely energy via baroclinic instability, which is intensified during winter. The possible factors modulating the behavior of the respective respect eddies in the Red Sea were then revealed by conducting a sensitivity psychoanalysis using the adjoint model. These eddies were found to exhibit different sensitivities to external forcings, suggesting different mechanisms for their development. This is the first known adjoint sensitivity study on specific eddy events in the Red Sea and was hitherto not previously appreciated. The last chapter examines the predictability of Red Sea eddies using an ensemble-based prediction and acculturation system. The calculate sea surface height was used to evaluate the overall operation of the short-run eddy predictability. Different ensemble sampling schemes were implemented, and the investigation among different schemes is followed by a discussion of performance and challenges based on the results of a case survey. The thesis not only enhances understand of the Red Sea dynamics, but besides deepens cognition of the physical-biological and air-sea interactions within the river basin. foster, it is a stepping rock to building a full-bodied regional functional system with polished prediction skills. Keywords: ECCO Products Used: ECCO2URL: http://hdl.handle.net/10754/627650 Other URLs:
Mohammadi-Aragh, M.; Goessling, H. F.; Losch, Martin; Hutter, N.; Jung, T. (2018). Predictability of Arctic sea ice on weather time scales, Scientific Reports, 1 (8), 6514, 10.1038/s41598-018-24660-0. Title: Predictability of Arctic sea ice on weather time scales Type: Journal article Publication: Scientific Reports Author(s): Mohammadi-Aragh, M. ; Goessling, H. F. ; Losch, Martin ; Hutter, N. ; Jung, T. Year: 2018 Formatted Citation: Mohammadi-Aragh, M., H. F. Goessling, M. Losch, N. Hutter, and T. Jung, 2018 : predictability of Arctic ocean frost on weather time scales. Scientific Reports, 8 ( 1 ), 6514, doi:10.1038/s41598-018-24660-0 Abstract: Keywords: ECCO Products Used: ECCO2 ; SeaIceURL: http://www.nature.com/articles/s41598-018-24660-0 Other URLs:
Filmer, M. S.; Hughes, C. W.; Woodworth, P. L.; Featherstone, W. E.; Bingham, R. J. (2018). Comparison between geodetic and oceanographic approaches to estimate mean dynamic topography for vertical datum unification: evaluation of Australian tide gauges, Journal of Geodesy, 12 (92), 1413-1437. Title: Comparison between geodetic and oceanographic approaches to estimate intend dynamic topography for vertical datum union : evaluation of australian tide gauges Type: Journal article Publication: Journal of Geodesy Author(s): Filmer, M. S. ; Hughes, C. W. ; Woodworth, P. L. ; Featherstone, W. E. ; Bingham, R. J. Year: 2018 Formatted Citation: Filmer, M. S., C. W. Hughes, P. L. Woodworth, W. E. Featherstone, and R. J. Bingham, 2018 : comparison between geodetic and oceanographic approaches to estimate mean moral force topography for vertical datum union : evaluation of australian tide gauges. Journal of Geodesy, 92 ( 12 ), 1413-1437, hypertext transfer protocol : //link.springer.com/article/10.1007/s00190-018-1131-5 Abstract: Keywords: ECCO Products Used: ECCO-V4 ; ECCO2 ; GECCOURL: https://link.springer.com/article/10.1007/s00190-018-1131-5 Other URLs:
Andersen, Ole Baltazar; Nielsen, Karina; Knudsen, Per; Hughes, Chris W.; Bingham, Rory; Fenoglio-Marc, Luciana; Gravelle, Médéric; Kern, Michael; Polo, Sara Padilla (2018). Improving the Coastal Mean Dynamic Topography by Geodetic Combination of Tide Gauge and Satellite Altimetry, Marine Geodesy, 1-29, 10.1080/01490419.2018.1530320. Title: Improving the coastal Mean Dynamic Topography by Geodetic Combination of Tide Gauge and Satellite Altimetry Type: Journal article Publication: Marine Geodesy Author(s): Andersen, Ole Baltazar ; Nielsen, Karina ; Knudsen, Per ; Hughes, Chris W. ; Bingham, Rory ; Fenoglio-Marc, Luciana ; Gravelle, Médéric ; Kern, Michael ; Polo, Sara Padilla Year: 2018 Formatted Citation: Andersen, O. B. and Coauthors, 2018 : Improving the coastal Mean Dynamic Topography by Geodetic Combination of Tide Gauge and Satellite Altimetry. Marine Geodesy, 1-29, doi:10.1080/01490419.2018.1530320 Abstract: Keywords: ECCO Products Used: ECCO-V2 ; ECCO2URL: https://www.tandfonline.com/doi/full/10.1080/01490419.2018.1530320 Other URLs:
Rocha, Cesar B. (2018). The turbulent and wavy upper ocean: transition from geostrophic flows to internal waves and stimulated generation of near-inertial waves. Title: The disruptive and wavy upper ocean : transition from geostrophic flows to inner waves and induce generation of near-inertial waves Type: dissertation Publication: Author(s): Rocha, Cesar B. Year: 2018 Formatted Citation: Rocha, C. B., 2018 : The disruptive and crinkled amphetamine ocean : transition from geostrophic flows to internal waves and induce genesis of near-inertial waves., 217 pp. hypertext transfer protocol : //escholarship.org/uc/item/4m893890. Abstract: We study the mesoscale to submesoscale ( 10-300 kilometer ) dynamics of the upper ocean, with particular attention to the breakdown between geostrophic flows and in- ternal waves, and the interaction between these two types of menstruate. Using 13 years of shipboard ADCP transects in Drake Passage, we show that inner waves account for more than one-half of the upper-ocean kinetic energy at scales between 10-40 kilometer ; a transi- tion from the dominance of geostrophic hang to inertia-gravity waves occurs at 40 km. We further show that a ball-shaped numeral model with implant tides reproduces this partitioning between upper-ocean geostrophic flows and inertia-gravity waves. Using the output signal of this model, we show that in the Kuroshio Extension upper-ocean sub- mesoscale ( 10-100 kilometer ) geostrophic flow and inertia-gravity waves undergo vigorous seasonal cycles that are out of phase : geostrophic flows peak in late winter/early spring, while the projection of inertia-gravity waves at the airfoil peaks in late summer/early capitulation. The experimental and modeling evidence of the importance of both geostrophic flows and inner gravity waves at mesoscales to submesoscales hints on the interaction between these two types of stream. To better understand these interactions, we analyze a simple model that couples barotropic quasi-geostrophic menstruate and near-inertial waves. There are two mechanisms of energy remove from geostrophic run to outwardly forced near-inertial waves : the refractive convergence of the wave legal action concentration into anti- cyclones ( and divergence from cyclones ) ; and the enhancement of wave-field gradients by geostrophic strain. Unforced inviscid numerical solutions of this reduce model uncover that geostrophic straining accounts for most of stimulate genesis, which represents 10-20 % of the decay of the initial balance energy. consideration of the dissipative problem reveals that wave profligacy generates both quasi-geostrophic po- tential vorticity locally and geostrophic kinetic energy. This curl streaming mechanism is non-negligible in forced-dissipative solutions, which equilibrate even without penetrate drag. In a separate discipline, we derive a Galerkin approximation for the surface-active quasi-geostrophic arrangement using standard vertical modes. While the Galerkin expansions of streamfunction and potential vorticity do not satisfy the inversion relation back precisely, the series converge with no Gibbs oscillations. With enough modes, the Galerkin series provide a estimable approximation to the streamfunction throughout the domain, which can be used to advect likely vorticity in the inside and buoyancy at the surfaces. Keywords: ECCO Products Used: LLC_hiresURL: https://escholarship.org/uc/item/4m893890 Other URLs:
Uotila, Petteri; Goosse, Hugues; Haines, Keith; Chevallier, Matthieu; Barthélemy, Antoine; Bricaud, Clément; Carton, Jim; Fučkar, Neven; Garric, Gilles; Iovino, Doroteaciro; Kauker, Frank; Korhonen, Meri; Lien, Vidar S.; Marnela, Marika; Massonnet, François; Mignac, Davi; Peterson, K. Andrew; Sadikni, Remon; Shi, Li; Tietsche, Steffen; Toyoda, Takahiro; Xie, Jiping; Zhang, Zhaoru (2018). An assessment of ten ocean reanalyses in the polar regions, Climate Dynamics, 10.1007/s00382-018-4242-z. Title: An appraisal of ten-spot ocean reanalyses in the arctic regions Type: Journal article Publication: Climate Dynamics Author(s): Uotila, Petteri ; Goosse, Hugues ; Haines, Keith ; Chevallier, Matthieu ; Barthélemy, Antoine ; Bricaud, Clément ; Carton, Jim ; Fučkar, Neven ; Garric, Gilles ; Iovino, Doroteaciro ; Kauker, Frank ; Korhonen, Meri ; Lien, Vidar S. ; Marnela, Marika ; Massonnet, François ; Mignac, Davi ; Peterson, K. Andrew ; Sadikni, Remon ; Shi, Li ; Tietsche, Steffen ; Toyoda, Takahiro ; Xie, Jiping ; Zhang, Zhaoru Year: 2018 Formatted Citation: Uotila, P. and Coauthors, 2018 : An assessment of ten ocean reanalyses in the polar regions. Climate Dynamics, doi:10.1007/s00382-018-4242-z Abstract: Keywords: ECCO Products Used: GECCO2URL: http://link.springer.com/10.1007/s00382-018-4242-z Other URLs:
Liu, Junjie; Bowman, Kevin W.; Parazoo, Nicholas C; Bloom, A Anthony; Wunch, Debra; Jiang, Zhe; Gurney, Kevin R; Schimel, Dave (2018). Detecting drought impact on terrestrial biosphere carbon fluxes over contiguous US with satellite observations, Environmental Research Letters, 9 (13), 095003, 10.1088/1748-9326/aad5ef. Title: Detecting drought impact on sublunar biosphere carbon paper fluxes over adjacent US with satellite observations Type: Journal article Publication: Environmental Research Letters Author(s): Liu, Junjie ; Bowman, Kevin W. ; Parazoo, Nicholas C ; Bloom, A Anthony ; Wunch, Debra ; Jiang, Zhe ; Gurney, Kevin R ; Schimel, Dave Year: 2018 Formatted Citation: Liu, J., K. W. Bowman, N. C. Parazoo, A. A. Bloom, D. Wunch, Z. Jiang, K. R. Gurney, and D. Schimel, 2018 : Detecting drought impingement on tellurian biosphere carbon paper fluxes over contiguous US with satellite observations. Environmental Research Letters, 13 ( 9 ), 095003, doi:10.1088/1748-9326/aad5ef Abstract: Keywords: ECCO Products Used: ECCO2URL: http://stacks.iop.org/1748-9326/13/i=9/a=095003?key=crossref.276f85f73e1f494255666d1102ad0dc8 Other URLs:
Naughten, Kaitlin A.; Meissner, Katrin J.; Galton-Fenzi, Benjamin K.; England, Matthew H.; Timmermann, Ralph; Hellmer, Hartmut H.; Hattermann, Tore; Debernard, Jens B. (2018). Intercomparison of Antarctic ice-shelf, ocean, and sea-ice interactions simulated by MetROMS-iceshelf and FESOM 1.4, Geoscientific Model Development, 4 (11), 1257-1292, 10.5194/gmd-11-1257-2018. Title: Intercomparison of Antarctic ice-shelf, ocean, and sea-ice interactions simulated by MetROMS-iceshelf and FESOM 1.4 Type: Journal article Publication: Geoscientific Model Development Author(s): Naughten, Kaitlin A. ; Meissner, Katrin J. ; Galton-Fenzi, Benjamin K. ; England, Matthew H. ; Timmermann, Ralph ; Hellmer, Hartmut H. ; Hattermann, Tore ; Debernard, Jens B. Year: 2018 Formatted Citation: Naughten, K. A., K. J. Meissner, B. K. Galton-Fenzi, M. H. England, R. Timmermann, H. H. Hellmer, T. Hattermann, and J. B. Debernard, 2018 : Intercomparison of Antarctic ice-shelf, ocean, and sea-ice interactions simulated by MetROMS-iceshelf and FESOM 1.4. Geoscientific Model Development, 11 ( 4 ), 1257-1292, doi:10.5194/gmd-11-1257-2018 Abstract: An increasing number of Southern Ocean models now include antarctic ice-shelf cavities, and simulate thermodynamics at the ice-shelf/ocean interface. This adds another level of complexity to Southern Ocean simulations, as ice shelves interact directly with the ocean and indirectly with ocean ice. hera, we present the first gear model intercomparison and evaluation of contemporary ocean/sea-ice/ice-shelf interactions, as simulated by two models : a circumpolar Antarctic configuration of MetROMS ( ROMS : regional Ocean Modelling System coupled to CICE : Community Ice CodE ) and the global exemplary FESOM ( Finite Element Sea-ice Ocean Model ), where the latter is run at two different levels of horizontal resolution. From a circumpolar Antarctic position, we compare and evaluate simulated ice-shelf basal melting and sub-ice-shelf circulation, a well as sea-ice properties and Southern Ocean water bulk characteristics as they influence the sub-ice-shelf processes. Despite their disagree numeral methods, the two models produce broadly like results and share like biases in many cases. Both models reproduce many key features of observations but contend to reproduce others, such as the high melt rates observed in the little warm-cavity ice shelves of the Amundsen and Bellingshausen seas. several differences in model design show a particular influence on the simulations. For exercise, FESOM ‘s greater topographical smooth can alter the geometry of some ice-shelf cavities enough to affect their melt rates ; this improves at higher resolution, since less polish is required. In the interior Southern Ocean, the vertical organize system affects the degree of water batch corrosion due to bastardly diapycnal mix, with MetROMS ‘ terrain-following align leading to more corrosion than FESOM ‘s z align. ultimately, increased horizontal resolving power in FESOM leads to higher radical mellow rates for little ice shelves, through a combination of stronger circulation and small-scale intrusions of warm water from offshore. Keywords: ECCO Products Used: ECCO2URL: https://www.geosci-model-dev.net/11/1257/2018/ Other URLs:
Ferster, Brady S.; Subrahmanyam, Bulusu; Fukumori, Ichiro; Nyadjro, Ebenezer S. (2018). Variability of Southern Ocean Transports, Journal of Physical Oceanography, 11 (48), 2667-2688, 10.1175/JPO-D-18-0055.1. Title: Variability of Southern Ocean Transports Type: Journal article Publication: Journal of Physical Oceanography Author(s): Ferster, Brady S. ; Subrahmanyam, Bulusu ; Fukumori, Ichiro ; Nyadjro, Ebenezer S. Year: 2018 Formatted Citation: Ferster, B. S., B. Subrahmanyam, I. Fukumori, and E. S. Nyadjro, 2018 : unevenness of Southern Ocean Transports. Journal of Physical Oceanography, 48 ( 11 ), 2667-2688, doi:10.1175/JPO-D-18-0055.1 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: http://journals.ametsoc.org/doi/10.1175/JPO-D-18-0055.1 Other URLs:
Russell, Joellen L; Kamenkovich, Igor; Bitz, Cecilia; Ferrari, Raffaele; Gille, Sarah T; Goodman, Paul J; Hallberg, Robert; Johnson, Kenneth; Khazmutdinova, Karina; Marinov, Irina; Mazloff, Matthew; Riser, Stephen; Sarmiento, Jorge L; Speer, Kevin; Talley, Lynne D; Wanninkhof, Rik (2018). Metrics for the Evaluation of the Southern Ocean in Coupled Climate Models and Earth System Models, Journal of Geophysical Research: Oceans, 10.1002/2017JC013461. Title: Metrics for the evaluation of the Southern Ocean in Coupled Climate Models and Earth System Models Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Russell, Joellen L ; Kamenkovich, Igor ; Bitz, Cecilia ; Ferrari, Raffaele ; Gille, Sarah T ; Goodman, Paul J ; Hallberg, Robert ; Johnson, Kenneth ; Khazmutdinova, Karina ; Marinov, Irina ; Mazloff, Matthew ; Riser, Stephen ; Sarmiento, Jorge L ; Speer, Kevin ; Talley, Lynne D ; Wanninkhof, Rik Year: 2018 Formatted Citation: Russell, J. L. and Coauthors, 2018 : Metrics for the evaluation of the Southern Ocean in Coupled Climate Models and Earth System Models. J. Geophys. Res. Ocean., doi:10.1002/2017JC013461 Abstract: n/a Keywords: Arctic and Antarctic oceanography, Carbon cycle, Climate and interannual unevenness, Observationally-based metrics, Southern Ocean, carbon uptake, heat consumption, numeric model ECCO Products Used: SOSEURL: http://dx.doi.org/10.1002/2017JC013461 Other URLs:
Schlegel, Nicole-Jeanne; Seroussi, Hélène; Schodlok, Michael P.; Larour, Eric Y.; Boening, Carmen; Limonadi, Daniel; Watkins, Michael M.; Morlighem, Mathieu; van den Broeke, Michiel R. (2018). Exploration of Antarctic Ice Sheet 100-year contribution to sea level rise and associated model uncertainties using the ISSM framework, The Cryosphere, 11 (12), 3511-3534, 10.5194/tc-12-3511-2018. Title: Exploration of Antarctic Ice Sheet 100-year contribution to sea grade surface and associated model uncertainties using the ISSM framework Type: Journal article Publication: The Cryosphere Author(s): Schlegel, Nicole-Jeanne ; Seroussi, Hélène ; Schodlok, Michael P. ; Larour, Eric Y. ; Boening, Carmen ; Limonadi, Daniel ; Watkins, Michael M. ; Morlighem, Mathieu ; van den Broeke, Michiel R. Year: 2018 Formatted Citation: Schlegel, N. and Coauthors, 2018 : exploration of Antarctic Ice Sheet 100-year contribution to sea level resurrect and associated model uncertainties using the ISSM framework. Cryosph., 12 ( 11 ), 3511-3534, doi:10.5194/tc-12-3511-2018 Abstract: Estimating the future development of the Antarctic Ice Sheet ( AIS ) is critical for improving future sea level rise ( SLR ) projections. numerical methamphetamine sail models are invaluable tools for bounding Antarctic vulnerability ; so far, few continental-scale projections of century-scale AIS SLR contribution exist, and those that do vary by up to an decree of magnitude. This is partially because model projections of future sea tied are inherently uncertain and depend largely on the model ‘s boundary conditions and climate force, which themselves are unknown due to the uncertainty in the projections of future anthropogenetic emissions and subsequent climate reception. here, we aim to improve the understand of how uncertainties in model pull and boundary conditions affect ice sail model simulations. With use of sampling techniques embedded within the Ice Sheet System Model ( ISSM ) framework, we assess how uncertainties in bamboozle accretion, ocean-induced melt, methamphetamine viscosity, basal friction, fundamentals elevation, and the presence of methamphetamine shelves impingement continental-scale 100-year model simulations of AIS future sea degree contribution. overall, we find that AIS sea level contribution is powerfully affected by grounding line retreat, which is driven by the magnitude of ice ledge basal thaw rates and by variations in bedrock topography. In summation, we find that over 1.2m of AIS ball-shaped beggarly ocean level contribution over the next hundred is accomplishable, but not likely, as it is tenable only in response to unrealistically large melt rates and continental frosting shelf collapse. regionally, we find that under our most extreme 100-year warming experiment generalized for the entire ice sheet, the Amundsen Sea sector is the most meaning generator of model doubt ( 1032mm 6σ outspread ) and the region with the largest electric potential for future sea degree contribution ( 297mm ). In contrast, under a more plausible coerce informed regionally by literature and exemplar sensitivity studies, the Ronne river basin has a greater electric potential for local increases in frost ledge radical fade rates. As a result, under this more probable realization, where warm waters reach the continental shelf under the Ronne ice shelf, it is the Ronne basin, particularly the Evans and Rutford ice streams, that are the greatest contributors to potential SLR ( 161mm ) and to simulation uncertainty ( 420mm 6σ spread ). ] ] > Keywords: ECCO Products Used: ECCO2 ; IceSheetURL: https://www.the-cryosphere.net/12/3511/2018/ Other URLs:
Villarino, Ernesto; Watson, James R.; Jönsson, Bror; Gasol, Josep M.; Salazar, Guillem; Acinas, Silvia G.; Estrada, Marta; Massana, Ramón; Logares, Ramiro; Giner, Caterina R.; Pernice, Massimo C.; Olivar, M. Pilar; Citores, Leire; Corell, Jon; Rodríguez-Ezpeleta, Naiara; Acuña, José Luis; Molina-Ramírez, Axayacatl; González-Gordillo, J. Ignacio; Cózar, Andrés; Martí, Elisa; Cuesta, José A.; Agustí, Susana; Fraile-Nuez, Eugenio; Duarte, Carlos M.; Irigoien, Xabier; Chust, Guillem (2018). Large-scale ocean connectivity and planktonic body size, Nature Communications, 1 (9), 142, 10.1038/s41467-017-02535-8. Title: large-scale ocean connectivity and planktonic body size Type: Journal article Publication: Nature Communications Author(s): Villarino, Ernesto ; Watson, James R. ; Jönsson, Bror ; Gasol, Josep M. ; Salazar, Guillem ; Acinas, Silvia G. ; Estrada, Marta ; Massana, Ramón ; Logares, Ramiro ; Giner, Caterina R. ; Pernice, Massimo C. ; Olivar, M. Pilar ; Citores, Leire ; Corell, Jon ; Rodríguez-Ezpeleta, Naiara ; Acuña, José Luis ; Molina-Ramírez, Axayacatl ; González-Gordillo, J. Ignacio ; Cózar, Andrés ; Martí, Elisa ; Cuesta, José A. ; Agustí, Susana ; Fraile-Nuez, Eugenio ; Duarte, Carlos M. ; Irigoien, Xabier ; Chust, Guillem Year: 2018 Formatted Citation: Villarino, E. and Coauthors, 2018 : large-scale ocean connectivity and planktonic body size. nature Communications, 9 ( 1 ), 142, doi:10.1038/s41467-017-02535-8 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://www.nature.com/articles/s41467-017-02535-8 Other URLs:
Wang, Jinbo; Qiu, Bo; Menemenlis, Dimitris; Thomas Farrar, J; Chao, Yi; Thompson, Andrew F; Flexas, Mar M; Fu, Lee Lueng; Qiu, Bo; Menemenlis, Dimitris; Thomas Farrar, J; Chao, Yi; Thompson, Andrew F; Flexas, Mar M (2018). An observing system simulation experiment for the calibration and validation of the Surface Water Ocean Topography Sea surface height measurement using in situ platforms, J. Atmos. Ocean. Technol., 2 (35), 281-297, 10.1175/JTECH-D-17-0076.1. Title: An detect system simulation experiment for the calibration and establishment of the Surface Water Ocean Topography Sea surface height measurement using in situ platforms Type: Journal article Publication: J. Atmos. Ocean. Technol. Author(s): Wang, Jinbo ; Qiu, Bo ; Menemenlis, Dimitris ; Thomas Farrar, J ; Chao, Yi ; Thompson, Andrew F ; Flexas, Mar M ; Fu, Lee Lueng ; Qiu, Bo ; Menemenlis, Dimitris ; Thomas Farrar, J ; Chao, Yi ; Thompson, Andrew F ; Flexas, Mar M Year: 2018 Formatted Citation: Wang, J. and Coauthors, 2018 : An observing system pretense experiment for the calibration and establishment of the Surface Water Ocean Topography Sea coat height measurement using in situ platforms. J. Atmos. Ocean. Technol., 35 ( 2 ), 281-297, doi:10.1175/JTECH-D-17-0076.1 Abstract: The wavenumber spectrum of sea surface stature ( SSH ) is an authoritative index of the dynamics of the ocean interior. While the SSH wavenumber spectrum has been well studied at mesoscale wavelengths and longer, using both in situ oceanographic measurements and satellite altimetry, it remains largely unknown for wavelengths less than $ ~ $ 70 kilometer. The Surface Water Ocean Topography ( SWOT ) satellite mission aims to resolve the SSH wavenumber spectrum at 15-150-km wavelengths, which is specified as one of the mission requirements. The mission calibration and establishment ( CalVal ) requires the earth truth of a synoptic SSH playing field to resolve the target wavelengths, but no existing experimental network is able to fulfill the job. A high-resolution global ocean pretense is used to conduct an observe system simulation experiment ( OSSE ) to identify the desirable oceanographic in situ measurements for SWOT SSH CalVal. After fixing 20 measure locations ( the minimum number for resolving 15-150-km wavelengths ) … Keywords: Altimetry, In situ oceanic observations, LLC4320, Oceanic, Planning, Profilers, Satellite observations, Sensitivity studies ECCO Products Used: LLC_hiresURL: http://www.soest.hawaii.edu/oceanography/bo/Wang_etal_JAOT2018.pdf Other URLs:
Delman, Andrew S.; Lee, Tong; Qiu, Bo (2018). Interannual to Multidecadal Forcing of Mesoscale Eddy Kinetic Energy in the Subtropical Southern Indian Ocean, Journal of Geophysical Research: Oceans, 10.1029/2018JC013945. Title: Interannual to Multidecadal Forcing of Mesoscale Eddy Kinetic Energy in the Subtropical Southern Indian Ocean Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Delman, Andrew S. ; Lee, Tong ; Qiu, Bo Year: 2018 Formatted Citation: Delman, A. S., T. Lee, and B. Qiu, 2018 : Interannual to Multidecadal Forcing of Mesoscale Eddy Kinetic Energy in the Subtropical Southern Indian Ocean. J. Geophys. Res. Ocean., doi:10.1029/2018JC013945 Abstract: A region of exalted mesoscale eddy natural process spans the subtropical southern indian Ocean ( SSIO ) between Madagascar and Australia. The interannual and decadal changes in eddy activeness in the SSIO eddy isthmus, as represented by the unevenness of eddy kinetic energy ( EKE ), have implications for the large-scale circulation, mixed-layer budgets, and biological natural process. An analysis of closely two and a half decades of sea level anomaly ( SLA ) datum from merged satellite altimetry shows that, in the southeast indian Ocean east of 90°E, the variations of EKE and SLA are positively correlated on interannual and decadal prison term scales. furthermore, EKE exhibits a multidecadal increasing linear tendency that corresponds to an increasing course of SLA in the area. The EKE-SLA covariability in the southeast amerind Ocean does not appear to be associated with a predilection for anticyclonic over cyclonic eddy natural process ; quite, it can be attributed to the coarse distant forcing from the tropical Pacific associated with the El Niño-Southern Oscillation and the Pacific Decadal Oscillation. In the west cardinal SSIO, scent tension curl barely south of the eddy band forces electric potential vorticity anomalies that affect conditions for imbalance in the west central SSIO ; potential density and potential vorticity gradient anomalies besides suggest a remote control impel mechanism originating in the region southwest of Australia. The interannual to multidecadal variability of EKE in the SSIO and its kinship with large-scale SLA has implications for mixed-layer dynamics and biogeochemistry and provides a footing for assessment of model simulations of eddy action in the region. Keywords: ECCO Products Used: ECCO2URL: https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2018JC013945 Other URLs: hypertext transfer protocol : //doi.wiley.com/10.1029/2018JC013945
Giglio, D; Lyubchich, V; Mazloff, M R (2018). Estimating Oxygen in the Southern Ocean using Argo Temperature and Salinity, Journal of Geophysical Research: Oceans, doi:10.1029/2017JC013404. Title: Estimating Oxygen in the Southern Ocean using Argo Temperature and Salinity Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Giglio, D ; Lyubchich, V ; Mazloff, M R Year: 2018 Formatted Citation: Giglio, D., V. Lyubchich, and M. R. Mazloff, 2018 : Estimating oxygen in the Southern Ocean using Argo Temperature and Salinity. J. Geophys. Res. Ocean., department of the interior : doi:10.1029/2017JC013404 Abstract: An Argo based appraisal of Oxygen ( O2 ) at 150 thousand is presented for the southerly Ocean ( SO ) from temperature ( T ), Salinity ( S ), and O2 Argo profiles collected during 2008-2012. The method acting is based on a oversee machine learning algorithm known as Random Forest ( RF ) arrested development, and provides an estimate for O2 given T, S, location and time information. The method acting is validated by attempting to reproduce the southern Ocean State Estimate ( SOSE ) O2 field using celluloid data sampled from SOSE. The RF mapping shows skill in the majority of the domain, but is debatable in eastern boundary regions. Maps of O2 at 150 m derived from ascertained profiles suggest that SOSE and the World Ocean Atlas 2013 climatology may overestimate annual think of O2 in the SO, both on a ball-shaped and river basin scale. A big regional diagonal is found east of Argentina, where high O2 values in the Argo based estimate are confined closer to the seashore compared to other products. SOSE may besides underestimate the annual motorbike of O2. evaluation of the RF based method acting demonstrates its likely to improve reason of O2 annual mean fields and variability from sparse O2 measurements. This implies the algorithm will besides be effective for mapping early biogeochemical variables ( e.g. nutrients and carbon ). furthermore, our RF evaluation results can be used to inform the design of future enhancements to the current range of O2 profiling floats. Keywords: Argo and BGC-Argo, Machine eruditeness, Mapping methods, Southern Ocean, Southern Ocean State Estimate ( SOSE ), oxygen ECCO Products Used: SOSEURL: https://doi.org/10.1029/2017JC013404 Other URLs:
Pillar, Helen R; Johnson, Helen L; Marshall, David P; Heimbach, Patrick; Takao, So (2018). Impacts of Atmospheric Reanalysis Uncertainty on Atlantic Overturning Estimates at 25°N, Journal of Climate, 21 (31), 8719-8744, 10.1175/JCLI-D-18-0241.1. Title: Impacts of Atmospheric Reanalysis Uncertainty on Atlantic Overturning Estimates at 25°N Type: Journal article Publication: Journal of Climate Author(s): Pillar, Helen R ; Johnson, Helen L ; Marshall, David P ; Heimbach, Patrick ; Takao, So Year: 2018 Formatted Citation: Pillar, H. R., H. L. Johnson, D. P. Marshall, P. Heimbach, and S. Takao, 2018 : Impacts of Atmospheric Reanalysis Uncertainty on Atlantic Overturning Estimates at 25°N. J. Clim., 31 ( 21 ), 8719-8744, doi:10.1175/JCLI-D-18-0241.1 Abstract: Atmospheric reanalyses are normally used to force numerical ocean models, but despite bombastic discrepancies reported between unlike products, the impingement of reanalysis doubt on the model ocean submit is rarely measure. In this cogitation, the impact of doubt in coat fluxes of airiness and momentum on the modeled Atlantic meridional overthrow at 25°N is quantified for the period January 1994-December 2011. By using an ocean-only climate exemplar and its adjoint, the space and prison term origins of overturning doubt resulting from air-sea blend uncertainty are amply explored. doubt in overturning induced by prior air-sea flux doubt can exceed 4 Sv ( where 1 Sv ≡ 106 m3 s-1 ) within 15 year, at times exceeding the amplitude of the ensemble-mean overturn anomaly. A key solution is that, on average, uncertainty in the overturn at 25°N is dominated by uncertainty in the zonal wind at lags of up to 6.5 yr and by doubt in surface heat fluxes thereafter, with winter estrus flux doubt over the Labrador Sea appearing to play a critically significant function. Keywords: ECCO Products Used: Adjoint ; ECCO-V3URL: https://doi.org/10.1175/JCLI-D-18-0241.1 Other URLs:
Khatiwala, Samar; Graven, Heather; Payne, Sarah; Heimbach, Patrick (2018). Changes to the Air-Sea Flux and Distribution of Radiocarbon in the Ocean Over the 21st Century, Geophysical Research Letters, 11 (45), 5617-5626, 10.1029/2018GL078172. Title: Changes to the Air-Sea Flux and Distribution of Radiocarbon in the Ocean Over the twenty-first hundred Type: Journal article Publication: Geophysical Research Letters Author(s): Khatiwala, Samar ; Graven, Heather ; Payne, Sarah ; Heimbach, Patrick Year: 2018 Formatted Citation: Khatiwala, S., H. Graven, S. Payne, and P. Heimbach, 2018 : Changes to the Air-Sea Flux and Distribution of Radiocarbon in the Ocean Over the twenty-first Century. Geophys. Res. Lett., 45 ( 11 ), 5617-5626, doi:10.1029/2018GL078172 Abstract: We investigate the spatiotemporal development of radiocarbon ( Δ14C ) in the ocean over the twenty-first hundred under different scenarios for anthropogenetic CO2 emissions and atmospheric CO2 and radiocarbon changes using a three-d ocean carbon motorbike model. potent decreases in atmospheric Δ14C in the high-emission scenario leave in strong outgassing of 14C over 2050-2100, causing Δ14C spatial gradients in the surface ocean and vertical gradients between the surface and intermediate waters to reverse augury. Surface Δ14C in the subtropical gyres is lower than Δ14C in Pacific Deep Water and Southern Ocean surface water in 2100. In the low-emission scenario, ocean Δ14C remains slenderly higher than in 1950 and relatively constant over 2050-2100. Over the future 20 years we find decadal changes in Δ14C of −30‰ to +5‰ in the upper 2 kilometer of the ocean, which should be detectable with continue hydrographic surveys. Our simulations can help in planning future observations, and they provide a service line for investigating natural or anthropogenetic changes in ocean circulation using ocean Δ14C observations and models. Keywords: ECCO Products Used: ECCO-V2URL: http://doi.wiley.com/10.1029/2018GL078172 Other URLs:
Prowe, A. E. Friederike; Visser, André W.; Andersen, Ken H.; Chiba, Sanae; Kiørboe, Thomas (2018). Biogeography of zooplankton feeding strategy, Limnology and Oceanography, lno.11067, 10.1002/lno.11067. Title: Biogeography of zooplankton feeding strategy Type: Journal article Publication: Limnology and Oceanography Author(s): Prowe, A. E. Friederike ; Visser, André W. ; Andersen, Ken H. ; Chiba, Sanae ; Kiørboe, Thomas Year: 2018 Formatted Citation: Prowe, A. E. F., A. W. Visser, K. H. Andersen, S. Chiba, and T. Kiørboe, 2018 : biogeography of zooplankton feed scheme. Limnology and Oceanography, lno.11067, doi:10.1002/lno.11067 Abstract: Keywords: ECCO Products Used: ECCO-V2URL: https://onlinelibrary.wiley.com/doi/abs/10.1002/lno.11067 Other URLs:
Sonnewald, Maike; Wunsch, Carl; Heimbach, Patrick (2018). Linear Predictability: A Sea Surface Height Case Study, Journal of Climate, 7 (31), 2599-2611, 10.1175/JCLI-D-17-0142.1. Title: Linear Predictability : A Sea Surface Height Case Study Type: Journal article Publication: Journal of Climate Author(s): Sonnewald, Maike ; Wunsch, Carl ; Heimbach, Patrick Year: 2018 Formatted Citation: Sonnewald, M., C. Wunsch, and P. Heimbach, 2018 : linear predictability : A Sea Surface Height Case Study. J. Clim., 31 ( 7 ), 2599-2611, doi:10.1175/JCLI-D-17-0142.1 Abstract: A benchmark of analogue predictability of sea surface height ( SSH ) globally is presented, complementing more complicate studies of SSH predictability. Twenty years of the Estimating the circulation and Cli- spouse of the Ocean ( ECCOv4 ) state of matter estimate ( 1992-2011 ) are used, fitting autoregressive moving average [ ARMA ( n, megabyte ) ] models where the order of the coefficients is chosen by the Akaike data criteria ( AIC ). Up to 50 % of the ocean SSH variability is dominated by the seasonal worker sign. The discrepancy accounted for by the nonseasonal SSH is particularly discrete in the Southern and Pacific Oceans, containing .95 % of the total SSH variation, and the expected prediction mistake emergence takes a few months to reach a threshold of 1 curium. isolated regions take 12 months or more to cross an accuracy doorsill of 1 cm. Including the drift importantly increases the prison term taken to reach the doorsill, particularly in the South Pacific. Annual average has expected pre- wording erroneousness growth of a few years to reach a threshold of 1 cm. Including the vogue chiefly increases the time taken to reach the threshold, but the clock series is short and noisy. Keywords: ECCO Products Used: ECCO-V4URL: http://journals.ametsoc.org/doi/10.1175/JCLI-D-17-0142.1 Other URLs:
Liang, Yu-Chiao; Mazloff, Matthew R; Rosso, Isabella; Fang, Shih-Wei; Yu, Jin-Yi (2018). A Multi-variate Empirical Orthogonal Function Method to Construct Nitrate Maps in the Southern Ocean, Journal of Atmospheric and Oceanic Technology, doi.org/10.1175/JTECH-D-18-0018.1. Title: A Multi-variate Empirical Orthogonal Function Method to Construct Nitrate Maps in the southern Ocean Type: Journal article Publication: Journal of Atmospheric and Oceanic Technology Author(s): Liang, Yu-Chiao ; Mazloff, Matthew R ; Rosso, Isabella ; Fang, Shih-Wei ; Yu, Jin-Yi Year: 2018 Formatted Citation: Liang, Y., M. R. Mazloff, I. Rosso, S. Fang, and J. Yu, 2018 : A Multi-variate Empirical Orthogonal Function Method to Construct Nitrate Maps in the southern Ocean. Journal of Atmospheric and Oceanic Technology, department of the interior : doi.org/10.1175/JTECH-D-18-0018.1 Abstract: The ability to construct nitrate maps in the southern Ocean ( SO ) from sparse observations is authoritative for marine biogeochemistry research, as it offers a geographic estimate of biological productivity. The goal of this survey is to infer the skill of constructed SO nitrate maps using varying data sampling strategies. The map method uses multi-variate Empirical Orthogonal Functions ( MEOFs ) constructed from nitrate, brininess, and electric potential temperature ( N-S-T ) fields from a biogeochemical general circulation model model. man-made N-S-T datasets are created by sampling modeled N-S-T fields in particular regions, either determined by random selection or by selecting regions over a sealed doorway of nitrate temporal variances. The first five hundred MEOF modes, determined by their capability to reconstruct the original N-S-T fields, are projected onto these synthetic N-S-T datum to construct time-varying nitrate maps. Normalized root-mean-square errors ( NRMSEs ) are calculated between the construct nitrate maps and the original model fields for different sampling strategies. The sample strategy according to nitrate variances is shown to yield maps with lower NRMSEs than mapping adopting random sampling. A K-means cluster method acting that considers the N-S-T combined variances to identify key regions to insert data is most effective in reducing the mapping errors. These findings are far quantified by a series of mapping error analyses that besides address the meaning of data sampling concentration. The results provide a sampling framework to prioritize the deployment of biogeochemical Argo floats for constructing nitrate maps.AbstractThe ability to construct nitrate maps in the southern Ocean ( SO ) from sparse observations is important for nautical biogeochemistry research, as it offers a geographic estimate of biological productivity. The finish of this survey is to infer the skill of constructed SO nitrate maps using varying data sampling strategies. The map method acting uses multi-variate Empirical Orthogonal Functions ( MEOFs ) constructed from nitrate, salt, and electric potential temperature ( N-S-T ) fields from a biogeochemical general circulation model simulation. man-made N-S-T datasets are created by sampling modeled N-S-T fields in specific regions, either determined by random excerpt or by selecting regions over a certain threshold of nitrate temporal variances. The first gear five hundred MEOF modes, determined by their capability to reconstruct the original N-S-T fields, are projected onto these celluloid N-S-T data to construct time-varying nitrate maps. Normalized root-mean-square errors ( NRMSEs ) are calculated between the construct nitrate maps and the original model fields for different sampling strategies. The sample distribution strategy according to nitrate variances is shown to yield maps with lower NRMSEs than mapping adopting random sampling. A K-means bunch method acting that considers the N-S-T combined variances to identify key regions to insert data is most effective in reducing the map errors. These findings are far quantified by a series of mapping erroneousness analyses that besides address the meaning of data sampling concentration. The results provide a sample framework to prioritize the deployment of biogeochemical Argo floats for constructing nitrate maps. Keywords: ECCO Products Used: SOSEURL: https://doi.org/10.1175/JTECH-D-18-0018.1 Other URLs:
Smith, Timothy; Heimbach, Patrick (2018). Atmospheric origins of variability in the South Atlantic meridional overturning circulation, Journal of Climate, JCLI-D-18-0311.1, 10.1175/JCLI-D-18-0311.1. Title: Atmospheric origins of unevenness in the South Atlantic meridional overthrow circulation Type: Journal article Publication: Journal of Climate Author(s): Smith, Timothy ; Heimbach, Patrick Year: 2018 Formatted Citation: Smith, T., and P. Heimbach, 2018 : atmospheric origins of unevenness in the South Atlantic meridional overturning circulation. J. Clim., JCLI-D-18-0311.1, doi:10.1175/JCLI-D-18-0311.1 Abstract: Keywords: ECCO Products Used: ECCO-V4 ; adjointURL: http://journals.ametsoc.org/doi/10.1175/JCLI-D-18-0311.1 Other URLs:
Thompson, Andrew F.; Stewart, Andrew L.; Spence, Paul; Heywood, Karen J. (2018). The Antarctic Slope Current in a Changing Climate, Reviews of Geophysics, 4 (56), 741-770, 10.1029/2018RG000624. Title: The Antarctic Slope Current in a Changing climate Type: Journal article Publication: Reviews of Geophysics Author(s): Thompson, Andrew F. ; Stewart, Andrew L. ; Spence, Paul ; Heywood, Karen J. Year: 2018 Formatted Citation: Thompson, A. F., A. L. Stewart, P. Spence, and K. J. Heywood, 2018 : The Antarctic Slope Current in a Changing Climate. Reviews of Geophysics, 56 ( 4 ), 741-770, doi:10.1029/2018RG000624 Abstract: Keywords: ECCO Products Used: LLC_hiresURL: http://doi.wiley.com/10.1029/2018RG000624 Other URLs:
Hameed, Sultan; Wolfe, Christopher L P; Chi, Lequan (2018). Impact of the Atlantic Meridional Mode on Gulf Stream North Wall Position, Journal of Climate, 21 (31), 8875-8894, 10.1175/JCLI-D-18-0098.1. Title: Impact of the Atlantic Meridional Mode on Gulf Stream North Wall Position Type: Journal article Publication: Journal of Climate Author(s): Hameed, Sultan ; Wolfe, Christopher L P ; Chi, Lequan Year: 2018 Formatted Citation: Hameed, S., C. L. P. Wolfe, and L. Chi, 2018 : affect of the Atlantic Meridional Mode on Gulf Stream North Wall Position. J. Clim., 31 ( 21 ), 8875-8894, doi:10.1175/JCLI-D-18-0098.1 Abstract: The path of the Gulf Stream as it leaves the continental shelf near Cape Hatteras is marked by a sharply gradient in ocean temperature known as the North Wall. previous work in the literature has considered processes related to the North Atlantic Oscillation ( NAO ) in triggering latitudinal displacements of the North Wall position. This wallpaper presents evidence that the Atlantic meridional modality ( AMM ) besides impacts interannual variations of the North Wall place. The AMM signal from the tropics propagates to the Gulf Stream near the 200-m depth, and there are two time scales for this interaction. anomalous Ekman suction induced by AMM cools the tropical Atlantic. The cold water in the Caribbean Sea is entrained into the currents feeding the Gulf Stream, and this cooling signal reaches the North Wall within a year. A second mechanism involves cold anomalies in the western tropical Atlantic, which initially propagate westward as baroclinic erratic waves, reaching the Gulf Stream and resulting in a southerly shift in the North Wall military position after a delay of about one year. In an psychoanalysis for the time period 1961-2015, AMM ‘s signal dominates North Wall fluctuations in the upper 300 thousand, while NAO is the major influence below ~500 thousand ; the determine of both the teleconnections is seen between 300 and 500 m. The relationship between the Atlantic meridional overturning circulation ( AMOC ) and the North Wall is investigated for the 2005-15 period and found to be statistically significant entirely at the sea open in one of the three North Wall indices used. Keywords: ECCO Products Used: ECCO-V4URL: https://doi.org/10.1175/JCLI-D-18-0098.1 Other URLs:
Ponte, R M; Piecuch, C G (2018). Mechanisms Controlling Global Mean Sea Surface Temperature Determined From a State Estimate, Geophysical Research Letters, 7 (45), 3221-3227, 10.1002/2017GL076821. Title: Mechanisms Controlling Global Mean Sea Surface Temperature Determined From a State estimate Type: Journal article Publication: Geophysical Research Letters Author(s): Ponte, R M ; Piecuch, C G Year: 2018 Formatted Citation: Ponte, R. M., and C. G. Piecuch, 2018 : Mechanisms Controlling Global Mean Sea Surface Temperature Determined From a State Estimate. Geophys. Res. Lett., 45 ( 7 ), 3221-3227, doi:10.1002/2017GL076821 Abstract: Global mean sea surface temperature ( ) is a variable of primary sake in studies of climate variability and change. The temporal evolution of can be influenced by surface heat fluxes ( ) and by diffusion ( ) and advection ( ) processes inner to the ocean, but quantifying the contribution of these different factors from data alone is prone to solid uncertainties. here we derive a conclude budget for the period 1993-2015 based on a global ocean submit estimate, which is an accurate solution of a general circulation model constrained to most extant ocean observations through advance optimization methods. The calculate average temperature of the top ( 10-m thick ) level in the model, taken to represent, shows relatively small unevenness at most time scales compared to, , or, reflecting the tendency for largely balancing effects from all the latter terms. The seasonal cycle in is by and large determined by humble imbalances between and, with negligible contributions from. While seems to plainly damp at the annual period, a different dynamic character for at semiannual period is suggested by it being larger than. At periods longer than annual, contributes importantly to variability, pointing to the direct influence of the variable ocean circulation on and mean come on climate. Keywords: ocean surface temperature ECCO Products Used: ECCO-V4URL: https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1002/2017GL076821 Other URLs:
Andrei, Constantin-Octavian; Lahtinen, Sonja; Nordman, Maaria; Näränen, Jyri; Koivula, Hannu; Poutanen, Markku; Hyyppä, Juha (2018). GPS Time Series Analysis from Aboa the Finnish Antarctic Research Station, Remote Sensing, 12 (10), 1937, 10.3390/rs10121937. Title: GPS Time Series Analysis from Aboa the Finnish Antarctic Research Station Type: Journal article Publication: Remote Sensing Author(s): Andrei, Constantin-Octavian ; Lahtinen, Sonja ; Nordman, Maaria ; Näränen, Jyri ; Koivula, Hannu ; Poutanen, Markku ; Hyyppä, Juha Year: 2018 Formatted Citation: Andrei, C., S. Lahtinen, M. Nordman, J. Näränen, H. Koivula, M. Poutanen, and J. Hyyppä, 2018 : GPS Time Series Analysis from Aboa the Finnish Antarctic Research Station. Remote Sensing, 10 ( 12 ), 1937, doi:10.3390/rs10121937 Abstract: continuous Global Positioning System ( GPS ) observations have been logged at the Finnish Antarctic inquiry post ( Aboa ) since February 2003. The station is located in Dronning Maud Land, East Antarctica. Almost 5000 casual notice files have been archived based on annually scientific expeditions. These files have not been amply analysed until now. This report reports for the foremost time on the coherent and homogeneous data process and analysis of the 15-year long clock time series. daily coordinates are obtained using Precise Point Positioning ( PPP ) serve based on two approaches. The first approach is based on the Kalman filter and uses the RTKLIB open source library to produce casual solutions by unconventionally running the percolate in the advancing and backward commission. The second approach uses APPS web service and is based on GIPSY scientific process locomotive. The two approaches show an excellent agreement with less than 3 millimeter rms error horizontally and 6 millimeter rms error vertically. The derive position prison term series is analysed in terms of vogue, cyclicity and noise characteristics. The randomness of the time series was found to be power-law make noise model with spectral index closer to flicker noise. In addition, respective periodic signals were found at 5, 14, 183 and 362 days. furthermore, most of the horizontal motion was found to be in the North steering at a pace of 11.23 ± 0.09 mm/y, whereas the rate in the East focus was estimated to be 1.46 ± 0.05 mm/y. last, the 15-year long fourth dimension series revealed a bowel movement upwards at a rate of 0.79 ± 0.35 mm/y. Despite being an unattended station, Aboa provides one of the most continuous and longest GPS time series in Antarctica. therefore, we believe that this inquiry increases the awareness of local geophysical phenomenon in a less report area of the Antarctic celibate. Keywords: ECCO Products Used: ECCO2URL: http://www.mdpi.com/2072-4292/10/12/1937 Other URLs:
Zhang, Hong; Menemenlis, Dimitris; Fenty, Ian (2018). ECCO LLC270 Ocean-Ice State Estimate. Title: ECCO LLC270 Ocean-Ice State Estimate Type: Report Publication: Author(s): Zhang, Hong ; Menemenlis, Dimitris ; Fenty, Ian Year: 2018 Formatted Citation: Zhang, H., D. Menemenlis, and I. Fenty, 2018 : ECCO LLC270 Ocean-Ice State Estimate., 7 pp. doi:1721.1/119821. Abstract: This text file provides a brief introduction to ECCO LLC270, an ongoing global ocean- frost state estimate. As a pilot burner experiment, the first ECCO LLC270 merchandise covers the time-period of 2001 to 2015 ( late extended to 2017 ). This is peculiarly useful for ocean-ice sheet interaction studies. Extension back to 1992 is afoot. Keywords: Ocean Data Assimilation, Ocean State Estimation ECCO Products Used: LLC270URL: http://hdl.handle.net/1721.1/119821 Other URLs: hypertext transfer protocol : //dspace.mit.edu/handle/1721.1/119821
Fukumori, Ichiro; Heimbach, Patrick; Ponte, Rui M; Wunsch, Carl (2018). A Dynamically Consistent, Multivariable Ocean Climatology, Bulletin of the American Meteorological Society, 10 (99), 2107-2128, 10.1175/BAMS-D-17-0213.1. Title: A Dynamically Consistent, Multivariable Ocean Climatology Type: Journal article Publication: Bulletin of the american Meteorological society Author(s): Fukumori, Ichiro ; Heimbach, Patrick ; Ponte, Rui M ; Wunsch, Carl Year: 2018 Formatted Citation: Fukumori, I., P. Heimbach, R. M. Ponte, and C. Wunsch, 2018 : A Dynamically Consistent, Multivariable Ocean Climatology. Bull. Am. Meteorol. Soc., 99 ( 10 ), 2107-2128, doi:10.1175/BAMS-D-17-0213.1 Abstract: A dynamically reproducible 20-yr average ocean climatology based on monthly values during the years 1994-2013 has been produced from the most recent state calculate of the Estimating the Circulation and Climate of the Ocean ( ECCO ) project, globally, top to bottom. The appraisal was produced from a least feather fit of a free-running ocean general circulation mannequin to about all available near-global data. Data coverage in space and time during this period is far more homogeneous than in any earlier interval and includes CTD, elephant seal, and Argo temperature and brininess profiles ; sea internal-combustion engine coverage ; fully altimetric and gravity-field coverage ; satellite ocean come on temperatures ; and the format meteorologic coverage from the European Centre for Medium-Range Weather Forecasts ( ECMWF ) interim reanalysis ( ERA-Interim ). dominant remaining data inhomogeneity arises from increasing coverage from the Argo profiles from about 2000 to the present. The state of matter estimate precisely satisfies the primitive equations of the free-running Massachusetts Institute of Technology General Circulation Model ( MITgcm ) at all times and hence produces values satisfying the fundamental conservation laws of energy, fresh water, and sol forth, permitting its consumption for climate change studies. Quantities such as calculate hotness subject count upon all observations, not just temperature, for model, altimetric stature and meteorologic exchanges. end product files are publicly available in Network Common Data Form ( netCDF ) and MATLAB mannequin and include hydrographic variables, three components of speed, and imperativeness at all depths, adenine well as other variables, including deduce air-sea momentum and irrepressibility fluxes, 3D shuffle parameters, and sea ice rink traverse. Keywords: ECCO Products Used: ECCO-V4URL: https://doi.org/10.1175/BAMS-D-17-0213.1 Other URLs:
Ferreira, David; Cessi, Paola; Coxall, Helen K; de Boer, Agatha; Dijkstra, Henk A; Drijfhout, Sybren S; Eldevik, Tor; Harnik, Nili; McManus, Jerry F; Marshall, David P; Nilsson, Johan; Roquet, Fabien; Schneider, Tapio; Wills, Robert C (2018). Atlantic-Pacific Asymmetry in Deep Water Formation, Annual Review of Earth and Planetary Sciences, 1 (46), 327-352, 10.1146/annurev-earth-082517-010045. Title: Atlantic-Pacific Asymmetry in Deep Water Formation Type: Journal article Publication: Annual Review of Earth and Planetary Sciences Author(s): Ferreira, David ; Cessi, Paola ; Coxall, Helen K ; de Boer, Agatha ; Dijkstra, Henk A ; Drijfhout, Sybren S ; Eldevik, Tor ; Harnik, Nili ; McManus, Jerry F ; Marshall, David P ; Nilsson, Johan ; Roquet, Fabien ; Schneider, Tapio ; Wills, Robert C Year: 2018 Formatted Citation: Ferreira, D. and Coauthors, 2018 : Atlantic-Pacific Asymmetry in Deep Water Formation. Annual Review of Earth and Planetary Sciences, 46 ( 1 ), 327-352, doi:10.1146/annurev-earth-082517-010045 Abstract: While the Atlantic Ocean is ventilated by high-latitude bass water formation and exhibits a pole-to-pole overrule circulation, the Pacific Ocean does not. This asymmetrical global revoke practice has persisted for the by 2-3 million years, with evidence for unlike breathing modes in the deeper past. In the current climate, the Atlantic-Pacific asymmetry occurs because the Atlantic is more saline solution, enabling thick convection. To what extent the brininess contrast between the two basins is dominated by atmospheric processes ( larger net vaporization over the Atlantic ) or oceanic processes ( salt conveyance into the Atlantic ) remains an outstanding question. numerical simulations have provided back for both mechanisms ; observations of the present climate support a impregnable character for atmospheric processes adenine well as some transition by oceanic processes. A major avenue for future work is the quantification of the respective processes at play to identify which mechanisms are elementary in different climate states. Keywords: ECCO Products Used: ECCO-V4URL: https://doi.org/10.1146/annurev-earth-082517-010045 Other URLs:
Foss, Greg; Nguyen, An; Ocaña, Victor; Heimbach, Patrick (2018). Arctic Ocean-Sea Ice Interactions, Proceedings of the Practice and Experience on Advanced Research Computing – PEARC ’18, 1-2, 10.1145/3219104.3229429. Title: Arctic Ocean-Sea Ice Interactions Type: Conference Proceedings Publication: Proceedings of the Practice and Experience on Advanced Research Computing – PEARC ’18 Author(s): Foss, Greg ; Nguyen, An ; Ocaña, Victor ; Heimbach, Patrick Year: 2018 Formatted Citation: Foss, G., A. Nguyen, V. Ocaña, and P. Heimbach, 2018 : arctic Ocean-Sea Ice Interactions. Proceedings of the Practice and Experience on Advanced Research Computing – PEARC ’18 ACM Press, New York, New York, USA, 1-2 pp. doi:10.1145/3219104.3229429. Abstract: Keywords: ECCO Products Used: ASTEURL: http://dl.acm.org/citation.cfm?doid=3219104.3229429 Other URLs:
Van der Stocken, Tom; Carroll, Dustin; Menemenlis, Dimitris; Simard, Marc; Koedam, Nico (2018). Global-scale dispersal and connectivity in mangroves, Proceedings of the National Academy of Sciences, 201812470, 10.1073/pnas.1812470116. Title: Global-scale dispersion and connectivity in mangroves Type: Journal article Publication: Proceedings of the National Academy of Sciences Author(s): Van five hundred Stocken, Tom ; Carroll, Dustin ; Menemenlis, Dimitris ; Simard, Marc ; Koedam, Nico Year: 2018 Formatted Citation: Van five hundred Stocken, T., D. Carroll, D. Menemenlis, M. Simard, and N. Koedam, 2018 : Global-scale dispersion and connectivity in mangroves. Proceedings of the National Academy of Sciences, 201812470, doi:10.1073/pnas.1812470116 Abstract: Dispersal provides a key mechanism for geographic range shifts in reply to changing environmental conditions. For mangroves, which are highly susceptible to climate deepen, the spatial plate of dispersion remains largely unknown. here we use a high-resolution, eddy- and tide-resolving numeral ocean model to simulate mangrove propagule dispersion across the ball-shaped ocean and generate connectivity matrices between mangrove habitats using a scope of floating periods. We find high rates of along-coast conveyance and transoceanic dispersion across the Atlantic, Pacific, and indian Oceans. No connectivity is observed between populations on either side of the American and african continents. Archipelagos, such as the Galapagos and those found in Polynesia, Micronesia, and Melanesia, act as critical stepping-stones for dispersion across the Pacific Ocean. Direct and reciprocal cross dispersion routes across the indian Ocean via the South Equatorial Current and seasonally reversing monsoon currents, respectively, leave connectivity between western indian Ocean and Indo-West Pacific sites. We demonstrate the isolation of the Hawaii Islands and help explain the presence of mangroves on the latitudinal outlier Bermuda. ultimately, we find that dispersion distance and connectivity are highly sensible to the minimum and utmost float periods. We anticipate that our findings will guide future research agendas to quantify biophysical factors that determine mangrove dispersion and connectivity, including the charm of ocean coat water properties on metabolic processes and irrepressibility demeanor, which may determine the potential of viably reaching a suitable habitat. ultimately, this will lead to a better agreement of ball-shaped mangrove species distributions and their response to changing climate conditions. Keywords: ECCO Products Used: LLC_hiresURL: http://www.pnas.org/lookup/doi/10.1073/pnas.1812470116 Other URLs:
Jordan, James R; Holland, Paul R; Goldberg, Dan; Snow, Kate; Arthern, Robert; Campin, Jean-Michel; Heimbach, Patrick; Jenkins, Adrian (2018). Ocean-Forced Ice-Shelf Thinning in a Synchronously Coupled Ice-Ocean Model, Journal of Geophysical Research: Oceans, 9 (125), 2219-2293, 10.1002/2017JC013251. Title: Ocean-Forced Ice-Shelf Thinning in a Synchronously Coupled Ice-Ocean Model Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Jordan, James R ; Holland, Paul R ; Goldberg, Dan ; Snow, Kate ; Arthern, Robert ; Campin, Jean-Michel ; Heimbach, Patrick ; Jenkins, adrian Year: 2018 Formatted Citation: Jordan, J. R., P. R. Holland, D. Goldberg, K. Snow, R. Arthern, J. Campin, P. Heimbach, and A. Jenkins, 2018 : Ocean-Forced Ice-Shelf Thinning in a Synchronously Coupled Ice-Ocean Model. J. Geophys. Res. Ocean., 125 ( 9 ), 2219-2293, doi:10.1002/2017JC013251 Abstract: The first amply synchronous, copulate ice shelf-ocean model with a fixed ground line and levy upstream frosting speed has been developed using the MITgcm ( Massachusetts Institute of Technol- ogy general circulation model ). Unlike former, asynchronous, approaches to coupled modeling our approach is amply cautious of heat, salt, and bulk. synchronous couple is achieved by continuously updating the ice-shelf thickness on the ocean prison term step. By simulating an idealized, warm-water ice shelf we show how raising the pycnocline leads to a decrease in both ice-shelf multitude and back stress, and hence buttress. Coupled runs show the formation of a western limit channel in the ice-shelf base due to increased melting on the western boundary due to Coriolis enhanced flow. eastern boundary ice thicken is besides observed. This is not the case when using a childlike depth-dependent parameterized thaw, as the internal-combustion engine ledge has relatively thin sides and a thick central ”bulge ” for a given ice-shelf mass. Ice-shelf geometry arising from the parameterized thaw rate tends to underestimate backstress ( and therefore buttress ) for a given ice-shelf multitude ascribable to a dilutant internal-combustion engine ledge at the boundaries when compared to coupled model simulations. Keywords: ECCO Products Used: URL: http://doi.wiley.com/10.1002/2017JC013251 Other URLs:
Kumar, Anurag; Dwivedi, Suneet; Pandey, Avinash C. (2018). Quantifying predictability of sea ice around the Indian Antarctic stations using coupled ocean sea ice model with shelf ice, Polar Science (18), 83-93, 10.1016/j.polar.2018.04.003. Title: Quantifying predictability of sea ice around the amerind Antarctic stations using coupled ocean ocean methamphetamine model with ledge ice rink Type: Journal article Publication: Polar science Author(s): Kumar, Anurag ; Dwivedi, Suneet ; Pandey, Avinash C. Year: 2018 Formatted Citation: Kumar, A., S. Dwivedi, and A. C. Pandey, 2018 : Quantifying predictability of sea ice around the indian Antarctic stations using coupled ocean sea methamphetamine model with ledge frost. polar Science, 18, 83-93, doi:10.1016/j.polar.2018.04.003 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://linkinghub.elsevier.com/retrieve/pii/S1873965218300148 Other URLs:
Chen, Guo; Zhao, Qile; Wei, Na; Li, Min (2018). Effect of Helmert Transformation Parameters and Weight Matrix on Seasonal Signals in GNSS Coordinate Time Series, Sensors, 7 (18), 2127, 10.3390/s18072127. Title: Effect of Helmert Transformation Parameters and Weight Matrix on Seasonal Signals in GNSS Coordinate Time Series Type: Journal article Publication: Sensors Author(s): Chen, Guo ; Zhao, Qile ; Wei, Na ; Li, Min Year: 2018 Formatted Citation: Chen, G., Q. Zhao, N. Wei, and M. Li, 2018 : effect of Helmert Transformation Parameters and Weight Matrix on Seasonal Signals in GNSS Coordinate Time Series. Sensors, 18 ( 7 ), 2127, doi:10.3390/s18072127 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://www.mdpi.com/1424-8220/18/7/2127 Other URLs:
Klos, Anna; Gruszczynska, Marta; Bos, Machiel Simon; Boy, Jean-Paul; Bogusz, Janusz (2018). Estimates of Vertical Velocity Errors for IGS ITRF2014 Stations by Applying the Improved Singular Spectrum Analysis Method and Environmental Loading Models, Pure and Applied Geophysics, 5 (175), 1823-1840, 10.1007/s00024-017-1494-1. Title: Estimates of Vertical Velocity Errors for IGS ITRF2014 Stations by Applying the Improved Singular Spectrum Analysis Method and Environmental Loading Models Type: Journal article Publication: Pure and Applied Geophysics Author(s): Klos, Anna ; Gruszczynska, Marta ; Bos, Machiel Simon ; Boy, Jean-Paul ; Bogusz, Janusz Year: 2018 Formatted Citation: Klos, A., M. Gruszczynska, M. S. Bos, J. Boy, and J. Bogusz, 2018 : Estimates of Vertical Velocity Errors for IGS ITRF2014 Stations by Applying the Improved Singular Spectrum Analysis Method and Environmental Loading Models. Pure and Applied Geophysics, 175 ( 5 ), 1823-1840, doi:10.1007/s00024-017-1494-1 Abstract: © 2017, Springer International Publishing. A dependable subtraction of seasonal worker signals from the Global Positioning System ( GPS ) status meter series is beneficial for the accuracy of deduce velocities. In this inquiry, we propose a two-stage solution of the trouble of a proper determination of seasonal worker changes. We employ environmental load models ( atmospheric, hydrological and ocean non-tidal ) with a dominant allele annual sign of amplitudes in their principle of superposition of up to 12 mm and study the seasonal worker signal ( annual and semi-annual ) estimates that change over time using improved remarkable spectrum analysis ( ISSA ). then, this deterministic model is subtracted from GPS position time series. We studied data from 376 permanent International GNSS Service ( IGS ) stations, derived as the official contribution to International Terrestrial Reference Frame ( ITRF2014 ) to measure the influence of applying environmental load models on the estimated vertical speed. Having removed the environmental loadings directly from the position time series, we noticed the apparent exchange in the might spectrum for frequencies between 4 and 80 cpy. therefore, we modelled the seasonal signal in environmental models using the ISSA approach and subtracted it from GPS erect clock time series to leave the noise character of the time series entire. We estimated the speed dilution of preciseness ( DP ) as a proportion between classical Weighted Least Squares and ISSA overture. For a total numeral of 298 out of the 376 stations analysed, the DP was lower than 1. This indicates that when the ISSA-derived crook was removed from the GPS data, the mistake of speed becomes lower than it was earlier. Keywords: GPS, ITRF2014, dilution of preciseness, environmental loadings, seasonal worker signals, singular spectrum analysis ECCO Products Used: ECCO2URL: https://doi.org/10.1007/978-3-319-96277-1_18 Other URLs: hypertext transfer protocol : //doi.org/10.1007/s00024-017-1494-1 % 0A, hypertext transfer protocol : //link.springer.com/10.1007/s00024-017-1494-1
Roberts, Jason; Galton-Fenzi, Benjamin K.; Paolo, Fernando S.; Donnelly, Claire; Gwyther, David E.; Padman, Laurie; Young, Duncan; Warner, Roland; Greenbaum, Jamin; Fricker, Helen A.; Payne, Antony J.; Cornford, Stephen; Le Brocq, Anne; van Ommen, Tas; Blankenship, Don; Siegert, Martin J. (2018). Ocean forced variability of Totten Glacier mass loss, Geological Society, London, Special Publications, 1 (461), 175-186, 10.1144/SP461.6. Title: Ocean forced unevenness of Totten Glacier mass loss Type: Journal article Publication: Geological Society, London, Special Publications Author(s): Roberts, Jason ; Galton-Fenzi, Benjamin K. ; Paolo, Fernando S. ; Donnelly, Claire ; Gwyther, David E. ; Padman, Laurie ; Young, Duncan ; Warner, Roland ; Greenbaum, Jamin ; Fricker, Helen A. ; Payne, Antony J. ; Cornford, Stephen ; Le Brocq, Anne ; van Ommen, Tas ; Blankenship, Don ; Siegert, Martin J. Year: 2018 Formatted Citation: Roberts, J. and Coauthors, 2018 : Ocean forced unevenness of Totten Glacier mass loss. geological Society, London, Special Publications, 461 ( 1 ), 175-186, doi:10.1144/SP461.6 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://sp.lyellcollection.org/lookup/doi/10.1144/SP461.6 Other URLs:
Vaňková, Irena (2018). Ice and Ocean Dynamics in a Glacier Fjord. Title: Ice and Ocean Dynamics in a Glacier Fjord Type: dissertation Publication: Author(s): Vaňková, Irena Year: 2018 Formatted Citation: Vaňková, I., 2018 : ice and Ocean Dynamics in a Glacier Fjord., 178 pp. hypertext transfer protocol : //drive.google.com/file/d/1BwrgBIl8jpqld8nKl6ldtyF1qRhfPRzT/view ? usp=sharingl % 0A. Abstract: This dissertation consists of four topics in the dynamics of glacier fjords : ( 1 ) sources of hydrographic unevenness in deep glacier fjord waters, ( 2 ) moral force interactions within the frosting mélange, ( 3 ) englacial hydrology at a marine-terminating glacier, and ( 4 ) calving generated ocean waves. Greenland ‘s fjords play the authoritative function of connecting glacier terminus with the con- tinental ledge and exposing them to oceanic unevenness, affecting ice-sheet stability via variable thaw rates at the ice-ocean interface. Observations collected in Sermilik Fjord were used to identify timescales of hydrographic variability of deep, affectionate waters and an ocean state estimate was used to identify sources of this variability. It is shown that inter- annual variability is set by the extent of deep convection in the Irminger Sea. furthermore, it is found that seasonal worker unevenness in fjord density is introduced at the continental shelf interrupt by Ekman transportation, which in turn governs seasonal unevenness of the fjord ‘s deep hydrographic properties due to the presence of vertical temperature and brininess gradients. The frosting mélange is a assortment of ocean frosting and iceberg, which can be important for glacier stability, due to its likely to provide backstress via buttress, preventing calving. A new set about to modeling the ice mélange is developed here. The rheology of an existing continuum sea-ice model is modified to incorporate the mechanical effect of crisphead lettuce and a semi-Lagrangian time-stepping system is adopted to preserve crisphead lettuce form through time. Meltwater conveyance through glaciers affects material properties of glacial ice and controls the ice flow by setting its limit conditions. however, since the arctic home is under-observed in both space and time, little is known about how this meltwater trans- interface occurs. New observations of the glacier inside showed a diurnal signal coherent with the being of an englacial diurnal meltwater bicycle, indicating a dense and complex hydrologic network inside the glacier. Barotropic waves in glacier fjords and their relation back to calving were explored. Observa- tional data from high-frequency imperativeness sensors placed in an array on the fjord sea floor captured tsunamis which were proceeded by big calving events. A numerical exemplar was used to infer the push at the glacier-ocean boundary producing these tsunamis, yielding a timescale over which calving at Helheim Glacier occurs. Keywords: ECCO Products Used: ECCO2 ; IceSheet ; SeaIceURL: https://drive.google.com/file/d/1BwrgBIl8jpqld8nKl6ldtyF1qRhfPRzT/view?usp=sharingl%0A Other URLs:
Strobach, Ehud; Molod, Andrea; Forget, Gael; Campin, Jean-Michel; Hill, Chris; Menemenlis, Dimitris; Heimbach, Patrick (2018). Consequences of different air-sea feedbacks on ocean using MITgcm and MERRA-2 forcing: Implications for coupled data assimilation systems, Ocean Modelling (132), 91-111, 10.1016/j.ocemod.2018.10.006. Title: Consequences of different air-sea feedbacks on ocean using MITgcm and MERRA-2 impel : Implications for coupled datum assimilation systems Type: Journal article Publication: Ocean Modelling Author(s): Strobach, Ehud ; Molod, Andrea ; Forget, Gael ; Campin, Jean-Michel ; Hill, Chris ; Menemenlis, Dimitris ; Heimbach, Patrick Year: 2018 Formatted Citation: Strobach, E., A. Molod, G. Forget, J. Campin, C. Hill, D. Menemenlis, and P. Heimbach, 2018 : Consequences of different air-sea feedbacks on ocean using MITgcm and MERRA-2 wedge : Implications for coupled datum acculturation systems. Ocean Modelling, 132, 91-111, doi:10.1016/j.ocemod.2018.10.006 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://linkinghub.elsevier.com/retrieve/pii/S1463500318301501 Other URLs:
Viglione, Giuliana A.; Thompson, Andrew F.; Flexas, M. Mar; Sprintall, Janet; Swart, Sebastiaan (2018). Abrupt Transitions in Submesoscale Structure in Southern Drake Passage: Glider Observations and Model Results, Journal of Physical Oceanography, 9 (48), 2011-2027, 10.1175/JPO-D-17-0192.1. Title: Abrupt Transitions in Submesoscale Structure in Southern Drake passing : Glider Observations and Model Results Type: Journal article Publication: Journal of Physical Oceanography Author(s): Viglione, Giuliana A. ; Thompson, Andrew F. ; Flexas, M. Mar ; Sprintall, Janet ; Swart, Sebastiaan Year: 2018 Formatted Citation: Viglione, G. A., A. F. Thompson, M. M. Flexas, J. Sprintall, and S. Swart, 2018 : abrupt Transitions in Submesoscale Structure in Southern Drake passage : Glider Observations and Model Results. Journal of Physical Oceanography, 48 ( 9 ), 2011-2027, doi:10.1175/JPO-D-17-0192.1 Abstract: Enhanced vertical velocities associated with submesoscale motions may quickly modify shuffle layer depths and increase commute between the mix layer and the ocean interior. These dynamics are of particular importance in the Southern Ocean, where the public discussion of many concentration classes occurs. here we present results from an experimental field plan in southern Drake Passage, a region preconditioned for submesoscale instability owing to its potent mesoscale eddy field, persistent fronts, strong down-front winds, and watery erect stratification. Two gliders sampled from December 2014 through March 2015 upstream and downriver of the Shackleton Fracture Zone ( SFZ ). The develop time series of mix layer depths and buoyancy gradients enabled calculations of electric potential vorticity and classifications of submesoscale instabilities. The regions flanking the SFZ displayed signally different characteristics despite similar surface impel. Mixed layer depths were closely twice angstrom deep, and horizontal buoyancy gradients were larger downriver of the SFZ. upstream of the SFZ, submesoscale variability was confined to the edges of topographically steer fronts, whereas downstream these motions were more broadly distributed. Comparisons to a unidimensional ( 1D ) mixing model demonstrate the role of submesoscale instabilities in generating mix layer variance. numerical end product from a submesoscale-resolving simulation indicates that submesoscale instabilities are all-important for correctly reproducing upper-ocean stratification. These results show that bathymetry can play a key character in generating dynamically distinct submesoscale characteristics over short spatial scales and that submesoscale motions can be locally active during summer months. Keywords: ECCO Products Used: LLC_hiresURL: http://journals.ametsoc.org/doi/10.1175/JPO-D-17-0192.1 Other URLs:
Liu, Chengyan; Wang, Zhaomin; Cheng, Chen; Wu, Yang; Xia, Ruibin; Li, Bingrui; Li, Xiang (2018). On the Modified Circumpolar Deep Water Upwelling Over the Four Ladies Bank in Prydz Bay, East Antarctica, Journal of Geophysical Research: Oceans, 10.1029/2018JC014026. Title: On the Modified Circumpolar Deep Water Upwelling Over the Four Ladies Bank in Prydz Bay, East Antarctica Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Liu, Chengyan ; Wang, Zhaomin ; Cheng, Chen ; Wu, Yang ; Xia, Ruibin ; Li, Bingrui ; Li, Xiang Year: 2018 Formatted Citation: Liu, C., Z. Wang, C. Cheng, Y. Wu, R. Xia, B. Li, and X. Li, 2018 : On the Modified Circumpolar Deep Water Upwelling Over the Four Ladies Bank in Prydz Bay, East Antarctica. J. Geophys. Res. Ocean., doi:10.1029/2018JC014026 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1029/2018JC014026 Other URLs:
Bashmachnikov, Igor; Belonenko, Tatyana; Kuibin, Pavel; Volkov, Denis L.; Foux, Victor (2018). Pattern of vertical velocity in the Lofoten vortex (the Norwegian Sea), Ocean Dynamics, 12 (68), 1711-1725, 10.1007/s10236-018-1213-1. Title: Pattern of vertical speed in the Lofoten whirlpool ( the Norwegian Sea ) Type: Journal article Publication: Ocean Dynamics Author(s): Bashmachnikov, Igor ; Belonenko, Tatyana ; Kuibin, Pavel ; Volkov, Denis L. ; Foux, Victor Year: 2018 Formatted Citation: Bashmachnikov, I., T. Belonenko, P. Kuibin, D. L. Volkov, and V. Foux, 2018 : pattern of upright speed in the Lofoten whirlpool ( the Norwegian Sea ). Ocean Dynamics, 68 ( 12 ), 1711-1725, doi:10.1007/s10236-018-1213-1 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://link.springer.com/10.1007/s10236-018-1213-1 Other URLs:
Ubelmann, Clément; Dibarboure, Gérald; Dubois, Pierre (2018). A Cross-Spectral Approach to Measure the Error Budget of the SWOT Altimetry Mission over the Ocean, Journal of Atmospheric and Oceanic Technology, 4 (35), 845-857, 10.1175/JTECH-D-17-0061.1. Title: A Cross-Spectral approach to Measure the Error Budget of the SWOT Altimetry Mission over the Ocean Type: Journal article Publication: Journal of Atmospheric and Oceanic Technology Author(s): Ubelmann, Clément ; Dibarboure, Gérald ; Dubois, Pierre Year: 2018 Formatted Citation: Ubelmann, C., G. Dibarboure, and P. Dubois, 2018 : A Cross-Spectral approach to Measure the Error Budget of the SWOT Altimetry Mission over the Ocean. Journal of Atmospheric and Oceanic Technology, 35 ( 4 ), 845-857, doi:10.1175/JTECH-D-17-0061.1 Abstract: Keywords: ECCO Products Used: LLC_hiresURL: http://journals.ametsoc.org/doi/10.1175/JTECH-D-17-0061.1 Other URLs:
Wei, Jianfen; Zhang, Xiangdong; Wang, Zhaomin (2018). Impacts of extratropical storm tracks on Arctic sea ice export through Fram Strait, Climate Dynamics, 10.1007/s00382-018-4254-8. Title: Impacts of extratropical storm tracks on Arctic ocean ice rink export through Fram Strait Type: Journal article Publication: Climate Dynamics Author(s): Wei, Jianfen ; Zhang, Xiangdong ; Wang, Zhaomin Year: 2018 Formatted Citation: Wei, J., X. Zhang, and Z. Wang, 2018 : Impacts of extratropical storm tracks on Arctic sea frost export through Fram Strait. Climate Dynamics, doi:10.1007/s00382-018-4254-8 Abstract: Studies have indicated government shifts in atmospheric circulation, and associated changes in extratropical storm tracks and Arctic storm activity, in detail on the North Atlantic side of the Arctic Ocean. To improve sympathize of changes in Arctic sea ice bulk proportion, we examined the impacts of the changed storm tracks and cyclone action on Arctic sea internal-combustion engine export through Fram Strait by using a gamey resolution global ocean-sea internal-combustion engine exemplar, MITgcm-ECCO2. The exemplary was forced by the japanese 25-year Reanalysis ( JRA-25 ) dataset. The results show that storm-induced strong northerly wind stress can cause coincident answer of daily sea ice export and, in turning, exert accumulative effects on interannual unevenness and long-run changes of ocean internal-combustion engine export. further analysis indicates that ramp shock on ocean ice rink export is spatially dependent. The storms occurring southeast of Fram Strait exhibit the largest impacts. The weaken intensity of winter ( in this study winter is defined as October-March and summer as April-September ) storms in this area after 1994/95 could be responsible for the decrease of total winter sea ice export during the same time period. Keywords: ECCO Products Used: ECCO2URL: http://link.springer.com/10.1007/s00382-018-4254-8 Other URLs:
Wood, M; Rignot, E; Fenty, Ian; Menemenlis, Dimitris; Millan, R; Morlighem, M; Mouginot, J; Seroussi, Hélène (2018). Ocean-Induced Melt Triggers Glacier Retreat in Northwest Greenland, Geophysical Research Letters, 10.1029/2018GL078024. Title: Ocean-Induced Melt Triggers Glacier Retreat in Northwest Greenland Type: Journal article Publication: Geophysical Research Letters Author(s): Wood, M ; Rignot, E ; Fenty, Ian ; Menemenlis, Dimitris ; Millan, R ; Morlighem, M ; Mouginot, J ; Seroussi, Hélène Year: 2018 Formatted Citation: Wood, M., E. Rignot, I. Fenty, D. Menemenlis, R. Millan, M. Morlighem, J. Mouginot, and H. Seroussi, 2018 : Ocean-Induced Melt Triggers Glacier Retreat in Northwest Greenland. Geophys. Res. Lett., doi:10.1029/2018GL078024 Abstract: In recent decades, tidewater glaciers in Northwest Greenland contributed importantly to sea horizontal surface ascend but exhibited a complex spatial traffic pattern of retrograde. here, we use novel observations of bathymetry and water temperature from NASA ‘s Ocean Melting Greenland mission to quantify the role of warm, piquant Atlantic Water in controlling the development of 37 glaciers. Modeled ocean-induced undercut of calving margins compared with ice advection and ice-front retreat observed by satellites from 1985 to 2015 indicate that 35 glaciers retreated when accumulative anomalies in ocean-induced undercut rose above the scope of seasonal unevenness of calving-front positions, while 2 glaciers standing on shallow sills and cold water did not retreat. Deviations in the observe time of retreat are explained by residual uncertainties in bathymetry, ineffective desegregate of waters in shallow fjords, and the presence of small floating sections. overall, warm ocean temperature triggered the hideaway, but calving processes dominate ablation ( 71 % ). Keywords: Greenland ice rink sheet, glacier retreat, ice rink front undercut, methamphetamine fronts, ice-ocean interactions, ocean warming ECCO Products Used: ECCO2 ; IceSheet ; LLC270URL: http://doi.wiley.com/10.1029/2018GL078024 Other URLs:
Carton, James A.; Chepurin, Gennady A.; Chen, Ligan; Grodsky, Semyon A. (2018). Improved Global Net Surface Heat Flux, Journal of Geophysical Research: Oceans, 5 (123), 3144-3163, 10.1002/2017JC013137. Title: Improved Global Net Surface Heat Flux Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Carton, James A. ; Chepurin, Gennady A. ; Chen, Ligan ; Grodsky, Semyon A. Year: 2018 Formatted Citation: Carton, J. A., G. A. Chepurin, L. Chen, and S. A. Grodsky, 2018 : Improved global net Surface Heat Flux. J. Geophys. Res. Ocean., 123 ( 5 ), 3144-3163, doi:10.1002/2017JC013137 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: http://doi.wiley.com/10.1002/2017JC013137 Other URLs:
Tamsitt, V; Abernathey, R P; Mazloff, M R; Wang, J; Talley, L D (2018). Transformation of Deep Water Masses Along Lagrangian Upwelling Pathways in the Southern Ocean, Journal of Geophysical Research: Oceans, 10.1002/2017JC013409. Title: Transformation of Deep Water Masses Along Lagrangian Upwelling Pathways in the southerly Ocean Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Tamsitt, V ; Abernathey, R P ; Mazloff, M R ; Wang, J ; Talley, L D Year: 2018 Formatted Citation: Tamsitt, V., R. P. Abernathey, M. R. Mazloff, J. Wang, and L. D. Talley, 2018 : transformation of Deep Water Masses Along Lagrangian Upwelling Pathways in the southerly Ocean. J. Geophys. Res. Ocean., doi:10.1002/2017JC013409 Abstract: n/a Keywords: Southern Ocean, Topographic/bathymetric interactions, Upwelling and convergences, and mixing processes, dissemination, lagrangian, desegregate, numerical model, topography, turbulence, upwelling, water batch transformation, water masses ECCO Products Used: SOSEURL: http://dx.doi.org/10.1002/2017JC013409 Other URLs:
Qiu, Bo; Chen, Shuiming; Klein, Patrice; Wang, Jinbo; Torres, Hector S; Fu, Lee-Lueng; Menemenlis, Dimitris (2018). Seasonality in Transition Scale from Balanced to Unbalanced Motions in the World Ocean, J. Phys. Oceanogr., 3 (48), 591-605, 10.1175/JPO-D-17-0169.1. Title: Seasonality in Transition Scale from Balanced to Unbalanced Motions in the World Ocean Type: Journal article Publication: J. Phys. Oceanogr. Author(s): Qiu, Bo ; Chen, Shuiming ; Klein, Patrice ; Wang, Jinbo ; Torres, Hector S ; Fu, Lee-Lueng ; Menemenlis, Dimitris Year: 2018 Formatted Citation: Qiu, B., S. Chen, P. Klein, J. Wang, H. S. Torres, L. Fu, and D. Menemenlis, 2018 : Seasonality in Transition Scale from Balanced to Unbalanced Motions in the World Ocean. J. Phys. Oceanogr., 48 ( 3 ), 591-605, doi:10.1175/JPO-D-17-0169.1 Abstract: The transition scale Lt from balanced geostrophic motions to unbalance wave motions, including near-inertial flows, inner tides, and inertia-gravity wave continuum, is explored using the output signal from a ball-shaped 1/48° horizontal resolving power Massachusetts Institute of Technology general circulation model ( MITgcm ) pretense. Defined as the wavelength with equal balanced and unbalanced motion energizing energy ( KE ) apparitional concentration, Lt is detected to be geographically highly inhomogeneous : it falls below 40 kilometer in the westerly limit current and antarctic Circumpolar Current regions, increases to 40-100 kilometer in the interior subtropical and subpolar gyres, and exceeds, in cosmopolitan, 200 kilometer in the tropical oceans. With the exception of the Pacific and indian sectors of the Southern Ocean, the seasonal worker KE fluctuations of the surface balanced and unbalance motions are out of phase because of the happening of assorted layer instability in winter and trap of unbalanced apparent motion KE in shallow mix layer in summe … Keywords: Altimetry, General circulation models, Inertia-gravity waves, LLC4320, Mesoscale processes, Seasonal unevenness, Small scale processes ECCO Products Used: LLC_hiresURL: http://journals.ametsoc.org/doi/10.1175/JPO-D-17-0169.1 Other URLs:
Zaba, Katherine D; Rudnick, Daniel L; Cornuelle, Bruce D; Gopalakrishnan, Ganesh; Mazloff, Matthew R (2018). Annual and Interannual Variability in the California Current System: Comparison of an Ocean State Estimate with a Network of Underwater Gliders, Journal of Physical Oceanography, 12 (48), 2965-2988, 10.1175/JPO-D-18-0037.1. Title: Annual and Interannual Variability in the California Current system : Comparison of an Ocean State Estimate with a Network of Underwater Gliders Type: Journal article Publication: Journal of Physical Oceanography Author(s): Zaba, Katherine D ; Rudnick, Daniel L ; Cornuelle, Bruce D ; Gopalakrishnan, Ganesh ; Mazloff, Matthew R Year: 2018 Formatted Citation: Zaba, K. D., D. L. Rudnick, B. D. Cornuelle, G. Gopalakrishnan, and M. R. Mazloff, 2018 : annual and Interannual Variability in the California Current system : Comparison of an Ocean State Estimate with a Network of Underwater Gliders. Journal of Physical Oceanography, 48 ( 12 ), 2965-2988, doi:10.1175/JPO-D-18-0037.1 Abstract: A data-constrained country estimate of the southerly California Current System ( CCS ) is presented and compared with withhold California Cooperative Oceanic Fisheries Investigations ( CalCOFI ) datum and absorb glider data over 2007-17. The objective of this comparison is to assess the ability of the California State Estimate ( CASE ) to reproduce the key forcible features of the CCS beggarly express, annual cycles, and interannual variability along the three sections of the California Underwater Glider Network ( CUGN ). The assessment focuses on respective oceanic metrics deemed most important for characterizing physical variability in the CCS : 50-m potential temperature, 80-m brininess, and 26 kg m-3 isopycnal depth and salt. In the time think of, the CASE reproduces large-scale thermohaline and circulation structures, including respect temperature gradients, shoaling isopycnals, and the locations and magnitudes of the equatorward California Current and poleward California Undercurrent. With respect to the annual bicycle, the CASE captures the phase and, to a lesser extent, the magnitude of upper-ocean thaw and stratification from late summer to early fall and of isopycnal heave during spring upwelling. The CASE besides realistically captures near-surface diapycnal blend during upwelling season and the semiannual bicycle of the California Undercurrent. In terms of interannual variability, the most marked signals are the dogged heating and downwelling anomalies of 2014-16 and a cocksure isopycnal salt anomaly that peaked with the 2015-16 El Niño. Keywords: ECCO Products Used: SOSEURL: https://doi.org/10.1175/JPO-D-18-0037.1 Other URLs:
Adcroft, Alistair J.; Campin, Jean-Michel; Dutkiewicz, Stephanie; Evangelinos, Constantinos; Ferreira, David; Forget, Gael; Fox-Kemper, Baylor; Heimbach, Patrick; Hill, Chris; Hill, Ed; Hill, Helen; Jahn, Oliver; Losch, Martin; Marshall, John; Maze, Guillaume; Menemenlis, Dimitris; Molod, Andrea (2018). MITgcm User Manual. Title: MITgcm User Manual Type: Report Publication: Author(s): Adcroft, Alistair J. ; Campin, Jean-Michel ; Dutkiewicz, Stephanie ; Evangelinos, Constantinos ; Ferreira, David ; Forget, Gael ; Fox-Kemper, Baylor ; Heimbach, Patrick ; Hill, Chris ; Hill, Ed ; Hill, Helen ; Jahn, Oliver ; Losch, Martin ; Marshall, John ; Maze, Guillaume ; Menemenlis, Dimitris ; Molod, Andrea Year: 2018 Formatted Citation: Adcroft, A. J. and Coauthors, 2018 : MITgcm User Manual., Cambridge, MA, 485 pp. doi:1721.1/117188. Abstract: User manual for the MIT General Circulation Model ( MITgcm ). Keywords: ECCO Products Used: URL: http://hdl.handle.net/1721.1/117188 Other URLs: hypertext transfer protocol : //dspace.mit.edu/handle/1721.1/117188
Mukherjee, A.; Shankar, D.; Chatterjee, Abhisek; Vinayachandran, P. N. (2018). Numerical simulation of the observed near-surface East India Coastal Current on the continental slope, Climate Dynamics, 11-12 (50), 3949-3980, 10.1007/s00382-017-3856-x. Title: Numerical simulation of the note near-surface East India Coastal Current on the continental slope Type: Journal article Publication: Climate Dynamics Author(s): Mukherjee, A. ; Shankar, D. ; Chatterjee, Abhisek ; Vinayachandran, P. N. Year: 2018 Formatted Citation: Mukherjee, A., D. Shankar, A. Chatterjee, and P. N. Vinayachandran, 2018 : numerical model of the observe near-surface East India Coastal Current on the continental slope. Climate Dynamics, 50 ( 11-12 ), 3949-3980, doi:10.1007/s00382-017-3856-x Abstract: Keywords: ECCO Products Used: ECCO2URL: http://link.springer.com/10.1007/s00382-017-3856-x Other URLs:
Yu, Y.; Chao, B.F.; García-García, D.; Luo, Z. (2018). Variations of the Argentine Gyre Observed in the GRACE Time-Variable Gravity and Ocean Altimetry Measurements, Journal of Geophysical Research: Oceans, 8 (123), 5375-5387, 10.1029/2018JC01418. Title: Variations of the Argentine Gyre Observed in the GRACE Time-Variable Gravity and Ocean Altimetry Measurements Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Yu, Y. ; Chao, B.F. ; García-García, D. ; Luo, Z. Year: 2018 Formatted Citation: Yu, Y., B.F. Chao, D. García-García, and Z. Luo, 2018 : Variations of the Argentine Gyre Observed in the GRACE Time-Variable Gravity and Ocean Altimetry Measurements. Journal of Geophysical Research : Oceans, 123 ( 8 ), 5375-5387, doi:10.1029/2018JC01418 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2018JC014189 Other URLs:
Sonke, Jeroen E.; Teisserenc, Roman; Heimbürger-Boavida, Lars-Eric; Petrova, Mariia V.; Marusczak, Nicolas; Le Dantec, Theo; Chupakov, Artem V.; Li, Chuxian; Thackray, Colin P.; Sunderland, Elsie M.; Tananaev, Nikita; Pokrovsky, Oleg S. (2018). Eurasian river spring flood observations support net Arctic Ocean mercury export to the atmosphere and Atlantic Ocean, Proceedings of the National Academy of Sciences, 50 (115), E11586-E11594, 10.1073/pnas.1811957115. Title: Eurasian river give flood observations support net Arctic Ocean mercury export to the atmosphere and Atlantic Ocean Type: Journal article Publication: Proceedings of the National Academy of Sciences Author(s): Sonke, Jeroen E. ; Teisserenc, Roman ; Heimbürger-Boavida, Lars-Eric ; Petrova, Mariia V. ; Marusczak, Nicolas ; Le Dantec, Theo ; Chupakov, Artem V. ; Li, Chuxian ; Thackray, Colin P. ; Sunderland, Elsie M. ; Tananaev, Nikita ; Pokrovsky, Oleg S. Year: 2018 Formatted Citation: Sonke, J.E., R. Teisserenc, L-E. Heimbürger-Boavida, M.V. Petrova, N. Marusczak, T. Le Dantec, A.V. Chupakov, C. Li, C.P. Thackray, E.M. Sunderland, N. Tananaev, and O.S. Pokrovsky, 2018 : eurasian river spring flood observations support net Arctic Ocean mercury export to the atmosphere and Atlantic Ocean. Proceedings of the National Academy of Sciences, 115 ( 50 ), E11586-E11594, doi:10.1073/pnas.1811957115 Abstract: Midlatitude anthropogenetic mercury ( Hg ) emissions and discharge reach the Arctic Ocean ( AO ) by atmospheric and oceanic transport. recent studies suggest that Arctic river Hg inputs have been a potentially overlooked source of Hg to the AO. Observations on Hg in eurasian rivers, which represent 80 % of fresh water inputs to the AO, are quasi-inexistent, however, putting firm agreement of the Arctic Hg bicycle on handle. here, we present comprehensive examination seasonal observations on dissolve Hg ( DHg ) and particulate Hg ( PHg ) concentrations and fluxes for two large eurasian rivers, the Yenisei and the Severnaya Dvina. We find large DHg and PHg fluxes during the give flood tide, followed by a second pulse during the fall flood. We observe chiseled water vs. Hg overflow relationships for eurasian and north american Hg fluxes to the AO and for canadian Hg flux into the larger Hudson Bay area. extrapolation to pan-Arctic rivers and watersheds gives a total Hg river blend to the AO of 44 ± 4 Mg per class ( 1σ ), in agreement with the late model-based estimates of 16 to 46 Mg per class and Hg/dissolved organic carbon paper ( DOC ) observation-based estimate of 50 Mg per year. The river Hg budget, together with late observations on tundra Hg uptake and AO Hg dynamics, provide a reproducible view of the Arctic Hg cycle in which continental ecosystems traffic anthropogenetic Hg emissions to the AO via rivers, and the AO exports Hg to the atmosphere, to the Atlantic Ocean, and to AO marine sediments. Keywords: ECCO Products Used: ECCO2URL: http://www.pnas.org/lookup/doi/10.1073/pnas.1811957115 Other URLs:
Zaron, Edward D.; Rocha, Cesar B. (2018). Internal Gravity Waves and Meso/Submesoscale Currents in the Ocean: Anticipating High-Resolution Observations from the SWOT Swath Altimeter Mission, Bulletin of the American Meteorological Society, 9 (99), ES155-ES157, 10.1175/BAMS-D-18-0133.1. Title: Internal Gravity Waves and Meso/Submesoscale Currents in the ocean : predict high-resolution Observations from the SWOT Swath Altimeter Mission Type: Journal article Publication: Bulletin of the american Meteorological company Author(s): Zaron, Edward D. ; Rocha, Cesar B. Year: 2018 Formatted Citation: Zaron, E.D. and C.B. Rocha, 2018 : Internal Gravity Waves and Meso/Submesoscale Currents in the ocean : anticipate high-resolution Observations from the SWOT Swath Altimeter Mission. Bulletin of the american english Meteorological Society, 99 ( 9 ), ES155-ES157, doi:10.1175/BAMS-D-18-0133.1 Abstract: Keywords: ECCO Products Used: LLC_hiresURL: https://journals.ametsoc.org/view/journals/bams/99/9/bams-d-18-0133.1.xml Other URLs:
Sarah T. Gille, Michael P. Meredith (2017). The Southern Ocean, Satellite Altimetry over Oceans and Land Surfaces, 18. Title: The Southern Ocean Type: Book incision Publication: Satellite Altimetry over Oceans and Land Surfaces Author(s): Sarah T. Gille, Michael P. Meredith Year: 2017 Formatted Citation: Sarah T. Gille, M. P. M., 2017 : The southern Ocean. Satellite Altimetry over Oceans and Land Surfaces, 18, hypertext transfer protocol : //www.taylorfrancis.com/chapters/edit/10.1201/9781315151779-9/southern-ocean-sarah-gille-michael-meredith Abstract: This chapter highlights how satellite altimetry has helped to illuminate the circulation and dynamics of the Southern Ocean and shows how altimetry has been used to identify the position of the Antarctic Circumpolar Current fronts. It describes the use of altimetry to characterize the four-dimensional temperature and salt structure of the Southern Ocean and evaluates transportation unevenness and changes in the persuasiveness of the current. The chapter considers the dynamics governing the southern Ocean circulation through the lens of eddy energizing energy and its temporal changes, as seen from altimetry. It deals with the key contributions from altimetry to Southern Ocean research and considers where future research might lead. spatial variations in the Earth ‘s geoid determine roughly 99 % of the time-averaged spatial structure of the absolute sea surface measured by altimetry. Satellite altimetry can observe large-scale, time-varying spatial structures but nothing below the ocean surface, so satellites are not constantly the obvious tool for reconstructing cubic oceanic fields. Keywords: ECCO Products Used: SOSEURL: https://www.taylorfrancis.com/chapters/edit/10.1201/9781315151779-9/southern-ocean-sarah-gille-michael-meredith Other URLs:
Rosemary Morrow, Lee-Lueng Fu, J. Thomas Farrar, Hyodae Seo, Pierre-Yves Le Traon (2017). Ocean Eddies and Mesoscale Variability, Satellite Altimetry over Oceans and Land Surfaces, 28, https://doi.org/10.1201/9781315151779. Title: Ocean Eddies and Mesoscale Variability Type: Book section Publication: Satellite Altimetry over Oceans and Land Surfaces Author(s): Rosemary Morrow, Lee-Lueng Fu, J. Thomas Farrar, Hyodae Seo, Pierre-Yves Le Traon Year: 2017 Formatted Citation: Rosemary Morrow, L. F., 2017 : ocean Eddies and Mesoscale Variability. Satellite Altimetry over Oceans and Land Surfaces, 28, department of the interior : hypertext transfer protocol : //doi.org/10.1201/9781315151779 Abstract: This chapter presents a review of the advances in observing the ocean eddy field with satellite altimetry over the last 10 years and addresses the techniques being used to study the finer-scale ocean dynamics. It provides an overview of the recycle of along-track data, both from ceremonious altimetry and the newly engineering missions, and looks at the improvements in mapping the multi-mission data for mesoscale studies. The chapter reviews diverse scientific applications of the fine-scale ocean eddies. These include analyses of mesoscale eddies and jets in the ball-shaped ocean and regional seas and analyses of along-track spectrum from unlike altimetric missions and their relation with instability regimes in the ocean. The chapter covers the likely and limits of resolving higher-order dynamic processes from the mapped data and deals with the raw challenges in separating the home wave signal from the smaller mesoscale ocean coat altitude signals. Keywords: ECCO Products Used: LLC_hiresURL: https://www.taylorfrancis.com/chapters/edit/10.1201/9781315151779-10/ocean-eddies-mesoscale-variability-rosemary-morrow-lee-lueng-fu-thomas-farrar-hyodae-seo-pierre-yves-le-traon Other URLs:
Lemieux, Jean-François; Bouillon, Sylvain; Dupont, Frédéric; Flato, Gregory; Losch, Martin; Rampal, Pierre; Tremblay, Louis-Bruno; Vancoppenolle, Martin; Williams, Timothy (2017). Sea Ice Physics and Modelling, Sea Ice Analysis and Forecasting, 10.1017/9781108277600.003. Title: Sea Ice Physics and Modelling Type: Book section Publication: Sea Ice Analysis and Forecasting Author(s): Lemieux, Jean-François ; Bouillon, Sylvain ; Dupont, Frédéric ; Flato, Gregory ; Losch, Martin ; Rampal, Pierre ; Tremblay, Louis-Bruno ; Vancoppenolle, Martin ; Williams, Timothy Year: 2017 Formatted Citation: Lemieux, J. and Coauthors, 2017 : Sea Ice Physics and Modelling. Sea Ice Analysis and Forecasting, Cambridge University Press, doi:10.1017/9781108277600.003 Abstract: Keywords: ECCO Products Used: LLC_hiresURL: https://www.cambridge.org/core/product/identifier/9781108277600%23CN-bp-2/type/book_part Other URLs:
Stewart, K.D.; Hogg, A.McC.; Griffies, S.M.; Heerdegen, A.P.; Ward, M.L.; Spence, P.; England, M.H. (2017). Vertical resolution of baroclinic modes in global ocean models, Ocean Modelling (113), 50-65, 10.1016/j.ocemod.2017.03.012. Title: Vertical resolution of baroclinic modes in ball-shaped ocean models Type: Journal article Publication: Ocean Modelling Author(s): Stewart, K.D. ; Hogg, A.McC. ; Griffies, S.M. ; Heerdegen, A.P. ; Ward, M.L. ; Spence, P. ; England, M.H. Year: 2017 Formatted Citation: Stewart, K., A. Hogg, S. Griffies, A. Heerdegen, M. Ward, P. Spence, and M. England, 2017 : vertical resoluteness of baroclinic modes in global ocean models. Ocean Modelling, 113, 50-65, doi:10.1016/j.ocemod.2017.03.012 Abstract: Keywords: ECCO Products Used: LLC_hiresURL: https://linkinghub.elsevier.com/retrieve/pii/S1463500317300434 Other URLs:
Watkins, Andrew (2017). Earth Rotation and Deformation Signals Caused by Deep Earth Processes, Bowling Green State University, 58. Title: Earth Rotation and Deformation Signals Caused by Deep Earth Processes Type: thesis Publication: Bowling Green State University Author(s): Watkins, Andrew Year: 2017 Formatted Citation: Watkins, A., 2017, Earth Rotation and Deformation Signals Caused by Deep Earth Processes, Bowling Green State University, 58 Abstract: The length of a day on Earth ( abbreviated LOD ) is not precisely 24 hours. There is a small excess LOD that varies on timescales ranging from a few days to thousands of years, broadly on the order of milliseconds. One characteristic of LOD variations is a sinusoidal component with a time period of ~6 years. The cause of the ~6-year signal is nameless, but is broadly suspected to be exchanges of angular momentum between the cape and the core. This cogitation aimed to test the guess that the ~6-year LOD signal is due to coupling between the cape and fluent out core. The flow of the core ‘s fluid deforms the basis of the mantle, leading to redistribution of Earth ‘s bulk ( causing changes in the gravitational field ) and deformation of the overlying crust. Surface deformation data from a ball-shaped network of high-precision Global Positioning System ( GPS ) stations was analyzed, and the component that acts on the ~6-year timescale was isolated and inverted for the core ‘s flow. Resulting angular momentum changes were computed for the out core and compared to the LOD sign to search for attest of core-mantle yoke. Outer core angular momentum changes obtained from GPS deformation data show testify of the distrust core-mantle couple, but this result is sensitive to inversion parameters. Changes in the gravitational field were besides modeled and found to be smaller than the errors in the presently available data. Keywords: ECCO Products Used: ECCO-KFSURL: https://etd.ohiolink.edu/apexprod/rws_olink/r/1501/10?clear=10&p10_accession_num=bgsu1510767104519046 Other URLs:
Gulliver, Larry T. (2017). Direct and Remote Effects of Topography and Orientation, and the Dynamics of Mesoscale Eddies. Title: Direct and Remote Effects of Topography and Orientation, and the Dynamics of Mesoscale Eddies Type: thesis Publication: Author(s): Gulliver, Larry T. Year: 2017 Formatted Citation: Gulliver, L.T., 2017 : calculate and outback Effects of Topography and Orientation, and the Dynamics of Mesoscale Eddies, Abstract: Baroclinic instability in the ocean is a primary campaign of mesoscale eddies, which are pockets of water system in the scale of 100km that have unlike density, thermal, and rotational characteristics than their surroundings. First observed in the early on 1900s, eddies are thought to be a prevailing reason for the heat flux between the equator and the poles in both the ocean and the atmosphere. In attack to understand this work well, this study uses a series of numeral simulations performed on high performance computing systems. The calculations are based on the Massachusetts Institute of Technology cosmopolitan circulation model, which is used to compare lateral pass heat enchant between different simulations. The specific objectives of this plan include iodine ) Comparison the direct and distant interactions of shear with topographical slope.The direct scenario is one in which the fleece extends throughout the entire ocean depth and is consequently in direct reach with the sea floor, whereas in the remote control scenario there is a spatial separation between the fleece in the upper one-half of the basin and the buttocks topography, two ) analysis of the system reaction to changes in the zonal and meridionalseafloor slope, and three ) probe of the effect of orientation changes in the mean large-scale stream on cross-flow fluxes. The lateral heat transport and diffusivity of these simulations are then compared to our analytic model, known as Growth Rate Balance, which is based on the libra between growth pace ( chief ) instabilities deduced from linear theory and numerically generated secondary instabilities. Keywords: ECCO Products Used: ECCO2URL: https://apps.dtic.mil/sti/citations/AD1046840 Other URLs:
Pfeffer, J.; Spada, G.; Mémin, A.; Boy, J.-P.; Allemand, P. (2017). Decoding the origins of vertical land motions observed today at coasts, Geophysical Journal International, 1 (210), 148-165, 10.1093/gji/ggx142. Title: Decoding the origins of upright land motions observed today at coasts Type: Journal article Publication: Geophysical Journal International Author(s): Pfeffer, J. ; Spada, G. ; Mémin, A. ; Boy, J.-P. ; Allemand, P. Year: 2017 Formatted Citation: Pfeffer, J., G. Spada, A. Mémin, J.-P. Boy, and P. Allemand, 2017 : Decoding the origins of vertical nation motions observed today at coasts, Geophysical Journal International, 210 ( 1 ), 148-165, department of the interior : 10.1093/gji/ggx142 Abstract: In recent decades, geodetic techniques have allowed detecting vertical land motions and low-lying changes of a few millimetres per year, based on measurements taken at the coast ( tide gauges ), on board of satellite platforms ( satellite altimetry ) or both ( Global Navigation Satellite System ). hera, contemporaneous vertical land motions are analysed from January 1993 to July 2013 at 849 globally distributed coastal sites. The vertical displacement of the coastal platform due to surface bulk changes is modelled using elastic and viscoelastic Green ’ s functions. special attention is paid to the effects of glacial isostatic alteration induced by past and contemporary ice melting. respective rheologic and load parameters are explored to provide a set of scenarios that could explain the coastal observations of erect estate motions globally. In well-instrumented regions, predicted upright farming motions explain more than 80 per cent of the division observed at scales larger than a few hundred kilometres. residual vertical land motions show a strong local unevenness, particularly in the vicinity of plate boundaries ascribable to the earthquake cycle. meaning remainder signals are besides observed at scales of a few hundred kilometres over nine well-instrumented regions forming notice windows on unmodelled geophysical processes. This study highlights the potential of our multitechnique database to detect geodynamical processes, driven by anthropogenetic influence, airfoil mass changes ( surface load and frigid isostatic allowance ) and tectonic activeness ( including the earthquake cycle, sediment and volcanic load, deoxyadenosine monophosphate well as regional tectonic constraints ). future improvements should be aimed at densifying the implemental network and at investigating more thoroughly the uncertainties associated with frigid isostatic alteration models. Keywords: ECCO Products Used: ECCO-V3URL: https://academic.oup.com/gji/article/210/1/148/3739342 Other URLs:
Le Bras, Isabela Astiz (2017). Dynamics of North Atlantic western boundary currents, MIT Libraries. Title: Dynamics of North Atlantic western limit currents Type: thesis Publication: MIT Libraries Author(s): Le Bras, Isabela Astiz Year: 2017 Formatted Citation: Le Bras, I.A., 2017 : Dynamics of North Atlantic western boundary currents, Abstract: The Gulf Stream and Deep Western Boundary Current ( DWBC ) shape the distribution of estrus and carbon paper in the North Atlantic, with consequences for ball-shaped climate. This dissertation employs a combination of hypothesis, observations and models to probe the dynamics of these two westerly limit currents. First, to diagnose the dynamic balance of the Gulf Stream, a depth-averaged vorticity budget model is developed. This model is applied to observations and a state estimate in the subtropical North Atlantic. Budget terms indicate a primary proportion of vorticity between wind tension wedge and profligacy, and that the Gulf Stream has a meaning inertial component. The future chapter weighs in on an ongoing debate over how the deep ocean is filled with water from high latitude sources. Measurements of the DWBC at Line W, on the continental gradient southeast of New England, unwrap water multitude changes that are reproducible with changes in the Labrador Sea, one of the sources of deep water system thousands of kilometers upriver. Coherent patterns of change are besides found along the path of the DWBC. These changes are reproducible with an advective-diffusive model, which is used to quantify transportation system meter distributions between the Labrador Sea and Line W. Advection and stirring are both found to play leading order roles in the propagation of water batch anomalies in the DWBC. The final examination study brings the two currents together in a quasi-geostrophic process model, focusing on the interaction between the Gulf Stream ‘s northern recirculation coil and the continental slope along which the DWBC travels. We demonstrate that the continental slope restricts the extent of the recirculation coil and alters its impel mechanism. The recirculation coil can besides merge with the DWBC at astuteness, and its adjustment is associated with eddy fluxes that stir the DWBC with the department of the interior. This thesis provides a quantitative description of the social organization of the overturning circulation in the western North Atlantic, which is an significant step towards understanding its character in the climate organization. Keywords: ECCO Products Used: ECCO-V4URL: https://dspace.mit.edu/handle/1721.1/109056 Other URLs:
Buchan, Jian (2017). Impacts of oceanic re-emergence on North Atlantic winter climate, University of Southhampton, 163. Title: Impacts of oceanic re-emergence on North Atlantic winter climate Type: dissertation Publication: University of Southhampton Author(s): Buchan, Jian Year: 2017 Formatted Citation: Buchan, J., 2021 : Impacts of oceanic re-emergence on North Atlantic winter climate, University of Southhampton Abstract: The aim of this thesis is to provide a more comprehensive examination reason of the character played by the North Atlantic Ocean in influencing North Atlantic and European atmospheric circulation and surface temperatures using climate models and observations. In this dissertation the radiation pattern of occurrences of re-emergence of ocean surface temperature anomalies and convinced and minus North Atlantic Oscillation ( NAO ) events over the last 140 years ( 1871-2011 ) from historic observations are examined to understand the historic relationship between the ocean and atmosphere. The findings are compared with CMIP5 historical ensemble model output signal ( 1850-2005 ). The bearing is to understand how these models which have been used to simulate changes in the Earth ’ mho climate through the twentieth and early on twenty-first centuries perform in terms of their ability to simulate the note links between re-emergence and the state of matter of the NAO. finally, in an ocean-atmosphere model simulation, the function played by North Atlantic sea airfoil temperatures ( SSTs ) on unretentive ( monthly ) timescales is investigated in two recent european cold upwind events that both coincided with similarly humble NAO values : the winter of 2009/2010 and the early winter of 2010/2011. The attest from the model report of the recent cold winters indicates that the NAO was influenced by the pattern of ocean surface temperatures occurring in October to December 2010 and re-emergence of SST anomalies in the North Atlantic contributed towards the development of an SST anomaly design, which favoured the perseverance of a negative NAO resulting in the cold weather anomaly of December 2010 in Northern Europe. Observations show a link between NAO intensity and re-emergence after negative NAO winters. The happening of a reemergence event increases the luck of predicting the atmospheric state of matter in the second gear winter. The analysis of the CMIP5 model output suggests that the majority of the models do not correctly represent re-emergence processes in the North Atlantic and are limited in their ability to reproduce the variability in oceanic and atmospheric conditions seen in observations. historical observations show a liaison between the NAO intensity and re-emergence, but likely re-emergence events can not be predicted from the atmospheric state alone. Whilst this thesis has identified factors which point to when these events are probably to occur there hush remains considerable doubt in our ability to predict them. Keywords: ECCO Products Used: OCCAURL: https://eprints.soton.ac.uk/417984/ Other URLs:
Zakem, Emily Juliette (2017). Linking microbes and climate: insights into the marine oxygen and nitrogen cycles with microbial metabolic functional types, Massachusetts Institute of Technology. Title: Linking microbes and climate : insights into the nautical oxygen and nitrogen cycles with microbial metabolic functional types Type: thesis Publication: Massachusetts Institute of Technology Author(s): Zakem, Emily Juliette Year: 2017 Formatted Citation: Zakem, E.J., 2017 : Linking microbes and climate : insights into the marine oxygen and nitrogen cycles with microbial metabolic functional types, Massachusetts Institute of Technology Abstract: This thesis posits that understanding the controls on microbially-mediated marine biogeochemical bicycle requires a mechanistic description of microbial natural process in biogeochemical models. In the work here, the diverse microbial community is resolved using metabolic functional types, which represent metabolisms as a officiate of their fundamental oxidation-reduction chemistry and physiology. In chapter 2, I use a elementary exemplary to predict the specify oxygen concentration of aerobic microbial growth in an ecosystem. This confining concentration is in the nanomolar roll for much of the argument space that describes microbial natural process in marine environments, and so anticipates the holocene measurements of oxygen to nanomolar concentrations or lower in anoxic zones. Anaerobic metamorphosis should become golden at this limiting concentration. The model provides a parameterization for moral force oxygen depletion and limitation, without a appointed critical oxygen concentration. In chapter 3, I extend the above analysis to determine the full moon set of conditions required for friendly anaerobic metabolism. Resource proportion theory is used to explain the competitive ejection of anaerobic metabolisms in oxygenate environments adenine well as the stable coexistence of aerobic and anaerobic metabolisms when oxygen is limiting. The onset of this coexistence is a function of the relative handiness of oxygen and a mutually ask substrate. Results hypothesize the likelihood of coexisting aerobic and anaerobic metabolisms at limiting oxygen concentrations, which is reproducible with observations. These dynamics are demonstrated in an idealize oxygen minimum zone exemplary. In chapter 4, I use a mechanistic description of nitrification to explain the location and volume of the primary nitrite maximal. First, competition with phytoplankton excludes nitrification from the sunlit level of the ocean, resulting in extremum nitrification at astuteness, as wide observed. Second, differences in the metamorphosis of the microbial clades responsible for the two steps of nitrification explain why nitrite accumulates systematically as an intermediate. The model provides a active resolution of nitrification in the ocean. It predicts that nitrification is favorable in sunlit waters where phytoplankton growth is limited by light or by a substrate other than reduced inorganic nitrogen. Keywords: ECCO Products Used: OCCAURL: https://dspace.mit.edu/handle/1721.1/112430 Other URLs:
Compton, Kathleen; Bennett, Richard A.; Hreinsdóttir, Sigrún; van Dam, Tonie; Bordoni, Andrea; Barletta, Valentina; Spada, Giorgio (2017). Short-term variations of Icelandic ice cap mass inferred from cGPS coordinate time series, Geochemistry, Geophysics, Geosystems, 6 (18), 2099-2119, 10.1002/2017GC006831. Title: short-run variations of Icelandic ice cap mass inferred from cGPS coordinate time series Type: Journal article Publication: Geochemistry, Geophysics, Geosystems Author(s): Compton, Kathleen ; Bennett, Richard A. ; Hreinsdóttir, Sigrún ; vanguard Dam, Tonie ; Bordoni, Andrea ; Barletta, Valentina ; Spada, Giorgio Year: 2017 Formatted Citation: Compton, K., R. A. Bennett, S. Hreinsdóttir, T. avant-garde Dam, A. Bordoni, V. Barletta, and G. Spada, 2017 : short-run variations of Icelandic ice cap mass inferred from cGPS align time series. Geochemistry, Geophysics, Geosystems, 18 ( 6 ), 2099-2119, doi:10.1002/2017GC006831 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: http://doi.wiley.com/10.1002/2017GC006831 Other URLs:
Liu, Lin; Khan, Shfaqat Abbas; van Dam, Tonie; Ma, Joseph Ho Yin; Bevis, Michael (2017). Annual variations in GPS-measured vertical displacements near Upernavik Isstrøm (Greenland) and contributions from surface mass loading, Journal of Geophysical Research: Solid Earth, 1 (122), 677-691, 10.1002/2016JB013494. Title: Annual variations in GPS-measured erect displacements near Upernavik Isstrøm ( Greenland ) and contributions from coat mass load Type: Journal article Publication: Journal of Geophysical Research : solid land Author(s): Liu, Lin ; Khan, Shfaqat Abbas ; van Dam, Tonie ; Ma, Joseph Ho Yin ; Bevis, Michael Year: 2017 Formatted Citation: Liu, L., S. A. Khan, T. avant-garde Dam, J. H. Y. Ma, and M. Bevis, 2017 : annual variations in GPS-measured erect displacements near Upernavik Isstrøm ( Greenland ) and contributions from open batch loading. Journal of Geophysical Research : solid Earth, 122 ( 1 ), 677-691, doi:10.1002/2016JB013494 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: https://onlinelibrary.wiley.com/doi/abs/10.1002/2016JB013494 Other URLs:
Pennisi, Elizabeth (2017). Making waves, Science, 6329 (355), 1006-1009, 10.1126/science.355.6329.1006. Title: Making waves Type: Magazine article Publication: science Author(s): Pennisi, Elizabeth Year: 2017 Formatted Citation: Pennisi, E., 2017 : Making waves. Science, 355 ( 6329 ), 1006-1009 pp. doi:10.1126/science.355.6329.1006. Abstract: Keywords: ECCO Products Used: ECCO2URL: http://www.sciencemag.org/lookup/doi/10.1126/science.355.6329.1006 Other URLs:
Walker, C.C.; Gardner, A.S. (2017). Rapid drawdown of Antarctica’s Wordie Ice Shelf glaciers in response to ENSO/Southern Annular Mode-driven warming in the Southern Ocean, Earth and Planetary Science Letters (476), 100-110, 10.1016/j.epsl.2017.08.005. Title: Rapid drawdown of Antarctica ’ s Wordie Ice Shelf glaciers in response to ENSO/Southern Annular Mode-driven warm in the southern Ocean Type: Journal article Publication: Earth and Planetary Science Letters Author(s): Walker, C.C. ; Gardner, A.S. Year: 2017 Formatted Citation: Walker, C., and A. Gardner, 2017 : rapid drawdown of Antarctica ‘s Wordie Ice Shelf glaciers in reception to ENSO/Southern Annular Mode-driven thaw in the southern Ocean. land and Planetary Science Letters, 476, 100-110, doi:10.1016/j.epsl.2017.08.005 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://linkinghub.elsevier.com/retrieve/pii/S0012821X17304442 Other URLs:
Mazloff, M R; Sallée, J.-B.; Menezes, V V; Macdonald, A M; Meredith, M P; Newman, L; Pellichero, V; Roquet, F; Swart, S; W\r ahlin, A (2017). Southern Ocean in State of the Climate in 2016, Bull. Amer. Meteor. Soc. (98). Title: Southern Ocean in State of the Climate in 2016 Type: Journal article Publication: Bull. Amer. Meteor. Soc. Author(s): Mazloff, M R ; Sallée, J.-B. ; Menezes, V V ; Macdonald, A M ; Meredith, M P ; Newman, L ; Pellichero, V ; Roquet, F ; Swart, S ; W\r ahlin, A Year: 2017 Formatted Citation: Mazloff, M. R. and Coauthors, 2017 : southerly Ocean in State of the Climate in 2016. Bull. Amer. Meteor. Soc., 98 Abstract: Keywords: ECCO Products Used: SOSE URL: Other URLs:
Ma, Qiang; Wang, Jianing; Wang, Fan (2017). Deep-layer circulations in Tropical Western Pacific Ocean based on six ocean models outputs, Oceanologia et Limnologia Sinica, 6 (48), 1302-1317, 10.11693/hyhz20170600159. Title: Deep-layer circulations in Tropical Western Pacific Ocean based on six ocean models outputs Type: Journal article Publication: Oceanologia et Limnologia Sinica Author(s): Ma, Qiang ; Wang, Jianing ; Wang, Fan Year: 2017 Formatted Citation: Ma, Q., J. Wang, and F. Wang, 2017 : Deep-layer circulations in Tropical Western Pacific Ocean based on six ocean models outputs. Oceanologia et Limnologia Sinica, 48 ( 6 ), 1302-1317, doi:10.11693/hyhz20170600159 Abstract: We conducted a preliminary psychoanalysis on deep-layer circulation in the tropical westerly Pacific using six ocean models outputs. In comparison with WOA13, the HYCOM ‘s deep temperature deviation at 3000 m is chiefly positive, while other five models ‘ are damaging. The trench temperature deviations increase with astuteness. The deep salt deviations of HYCOM and OFES are chiefly incontrovertible, while other models ‘ are chiefly negative. Both the worldly trends of entail temperature and brininess deviations are different from the observations. The currents between 1000 and 3000m are dominated by alternating west and east zonal jets. The zonal speed decreases cursorily below 3000m, and the circulations are separated by different basins between 3000 and 5000m, but the seawater substitution can take place through deep-layer passages among basins. The transmit in deep-layer passages shows seasonal variability ; moreover, the steering of current in some deep layers could be diametric in different seasons. The traffic pattern of circulation is controlled by potential vorticity constraint equality, and thus besides shows seasonal worker variation, indicating worldly difference in the form of major rotations in these basins. In addition, we discussed the impacts of T/S initial value, tide, and other factors on the deep circulations, and proposed suggestions for future improvement in the model. Keywords: ECCO Products Used: ECCO2 URL: Other URLs:
Chin, Toshio Michael; Vazquez-Cuervo, Jorge; Armstrong, Edward M. (2017). A multi-scale high-resolution analysis of global sea surface temperature, Remote Sensing of Environment (200), 154-169, 10.1016/j.rse.2017.07.029. Title: A multi-scale high-resolution analysis of ball-shaped ocean surface temperature Type: Journal article Publication: Remote Sensing of Environment Author(s): Chin, Toshio Michael ; Vazquez-Cuervo, Jorge ; Armstrong, Edward M. Year: 2017 Formatted Citation: Chin, T. M., J. Vazquez-Cuervo, and E. M. Armstrong, 2017 : A multi-scale high-resolution analysis of global sea surface temperature. Remote Sensing of Environment, 200, 154-169, doi:10.1016/j.rse.2017.07.029 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://linkinghub.elsevier.com/retrieve/pii/S0034425717303462 Other URLs:
Song, Xiangzhou; Yu, Lisan (2017). Air-sea heat flux climatologies in the Mediterranean Sea: Surface energy balance and its consistency with ocean heat storage, Journal of Geophysical Research: Oceans, 5 (122), 4068-4087, 10.1002/2016JC012254. Title: Air-sea heat flow climatologies in the Mediterranean Sea : Surface energy libra and its consistency with ocean estrus storage Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Song, Xiangzhou ; Yu, Lisan Year: 2017 Formatted Citation: Song, X., and L. Yu, 2017 : Air-sea heating system flux climatologies in the Mediterranean Sea : Surface energy poise and its consistency with ocean heating system memory. J. Geophys. Res. Ocean., 122 ( 5 ), 4068-4087, doi:10.1002/2016JC012254 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: http://doi.wiley.com/10.1002/2016JC012254 Other URLs:
Tamsitt, Veronica; Drake, Henri F; Morrison, Adele K; Talley, Lynne D; Dufour, Carolina O; Gray, Alison R; Griffies, Stephen M; Mazloff, Matthew R; Sarmiento, Jorge L; Wang, Jinbo; Weijer, Wilbert (2017). Spiraling pathways of global deep waters to the surface of the Southern Ocean, Nature Communications (8), 172, 0.1038/s41467-017-00197-0. Title: Spiraling pathways of ball-shaped deep waters to the surface of the Southern Ocean Type: Journal article Publication: Nature Communications Author(s): Tamsitt, Veronica ; Drake, Henri F ; Morrison, Adele K ; Talley, Lynne D ; Dufour, Carolina O ; Gray, Alison R ; Griffies, Stephen M ; Mazloff, Matthew R ; Sarmiento, Jorge L ; Wang, Jinbo ; Weijer, Wilbert Year: 2017 Formatted Citation: Tamsitt, V. and Coauthors, 2017 : Spiraling pathways of ball-shaped deep waters to the surface of the Southern Ocean. nature Communications, 8, 172, doi:0.1038/s41467-017-00197-0 Abstract: Upwelling of global deep waters to the sea surface in the southern Ocean closes the ball-shaped overturn circulation and is basically significant for oceanic uptake of carbon and heat, food resupply for sustaining oceanic biological production, and the melt rate of ice shelves. however, the demand pathways and function of topography in Southern Ocean upwelling remain largely stranger. hera we show detail upwelling pathways in three dimensions, using hydrographic observations and particle track in high-resolution models. The analysis reveals that the northern-sourced deep waters enter the Antarctic Circumpolar Current via southbound flow along the boundaries of the three ocean basins, before spiraling southeastward and up through the Antarctic Circumpolar Current. Upwelling is greatly enhanced at five major topographical features, associated with vigorous mesoscale eddy bodily process. cryptic water system reaches the upper berth ocean predominantly confederacy of the Antarctic Circumpolar Current, with a spatially inhomogeneous distribution. The timescale for half of the deep water to upwell from 30 { \textdegree } S to the blend layer is ~60-90 years. Keywords: ECCO Products Used: SOSEURL: https://doi.org/10.1038/s41467-017-00197-0 Other URLs:
Fenty, Ian; Menemenlis, Dimitris; Zhang, Hong (2017). Global coupled sea ice-ocean state estimation, Climate Dynamics, 3 (49), 931-956, 10.1007/s00382-015-2796-6. Title: Global coupled ocean ice-ocean department of state estimate Type: Journal article Publication: Climate Dynamics Author(s): Fenty, Ian ; Menemenlis, Dimitris ; Zhang, Hong Year: 2017 Formatted Citation: Fenty, I., D. Menemenlis, and H. Zhang, 2017 : Global coupled sea ice-ocean state estimate. Climate Dynamics, 49 ( 3 ), 931-956, doi:10.1007/s00382-015-2796-6 Abstract: Keywords: 4DVAR, Adjoint, Assimilation, Coupled ocean model, ECCO2, Sea frost, Sea ice concentration data, State estimate ECCO Products Used: ECCO2 ; SeaIceURL: http://dx.doi.org/10.1007/s00382-015-2796-6 Other URLs: hypertext transfer protocol : //link.springer.com/10.1007/s00382-015-2796-6
Mu, Longjiang; Zhao, Jinping; Zhong, Wenli (2017). Regime shift of the dominant factor for halocline depth in the Canada Basin during 1990-2008, Acta Oceanologica Sinica, 1 (36), 35-43, 10.1007/s13131-016-0883-0. Title: Regime shift of the dominant allele agent for halocline depth in the Canada Basin during 1990-2008 Type: Journal article Publication: Acta Oceanologica Sinica Author(s): Mu, Longjiang ; Zhao, Jinping ; Zhong, Wenli Year: 2017 Formatted Citation: Mu, L., J. Zhao, and W. Zhong, 2017 : government shift of the dominant agent for halocline depth in the Canada Basin during 1990-2008. Acta Oceanologica Sinica, 36 ( 1 ), 35-43, doi:10.1007/s13131-016-0883-0 Abstract: © 2017, The chinese Society of Oceanography and Springer-Verlag Berlin Heidelberg.The World Ocean Database ( WOD ) is used to evaluate the halocline astuteness simulated by an ice-ocean pair model in the Canada Basin during 1990-2008. statistical results show that the model halocline is authentic. compare of the September sea ice extent between pretense and SSM/I dataset, a reproducible interannual variability is found between them. furthermore, both the simulated and observe September sea internal-combustion engine extent picture stairway declines in 2000-2008 compared to 1990-1999. That supports that the abrupt variations of the ocean surface stress curl anomaly in 2000-2008 are caused by rapid sea frosting melt and besides in favor of the naturalistic universe of the fake variations. Responses to these changes can be found in the upper berth ocean circulation and the intercede current variations in these two phases a well. The analysis shows that seasonal worker variations of the halocline are regulated by the seasonal worker variations of the Ekman pump. On interannual prison term scale, the variations of the halocline have an inverse relationship with the ocean airfoil stress coil anomaly after 2000, while this relationship no longer applies in the 1990s. It is pointed out that the regimen transfer in the Canada Basin can be derived to illustrate this phenomenon. specifically, the halocline variations are dominated by advection in the 1990s and Ekman pumping in the 2000s respectively. furthermore, the regimen shift key is caused by changing transpolar Drift pathway and Ekman pumping area ascribable to spatial distortion of the center Beaufort high ( BH ) relative to climatology. Keywords: Beaufort high, Canada Basin, Transpolar Drift, circumpolar limit stream, fresh water, halocline depth ECCO Products Used: ECCO2 URL: Other URLs:
Hsu, Chia-Wei; Velicogna, Isabella (2017). Detection of sea level fingerprints derived from GRACE gravity data, Geophysical Research Letters, 17 (44), 8953-8961, 10.1002/2017GL074070. Title: Detection of sea level fingerprints derived from GRACE graveness data Type: Journal article Publication: Geophysical Research Letters Author(s): Hsu, Chia-Wei ; Velicogna, Isabella Year: 2017 Formatted Citation: Hsu, C., and I. Velicogna, 2017 : detection of sea degree fingerprints derived from GRACE gravity data. Geophys. Res. Lett., 44 ( 17 ), 8953-8961, doi:10.1002/2017GL074070 Abstract: Keywords: ECCO Products Used: ECCO-V4 ; ECCO2URL: http://doi.wiley.com/10.1002/2017GL074070 Other URLs:
Liang, Xinfeng; Spall, Michael; Wunsch, Carl (2017). Global Ocean Vertical Velocity From a Dynamically Consistent Ocean State Estimate, Journal of Geophysical Research: Oceans, 10 (122), 8208-8224, 10.1002/2017JC012985. Title: Global Ocean Vertical Velocity From a Dynamically Consistent Ocean State Estimate Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Liang, Xinfeng ; Spall, Michael ; Wunsch, Carl Year: 2017 Formatted Citation: Liang, X., M. Spall, and C. Wunsch, 2017 : global Ocean Vertical Velocity From a Dynamically Consistent Ocean State Estimate. J. Geophys. Res. Ocean., 122 ( 10 ), 8208-8224, doi:10.1002/2017JC012985 Abstract: Estimates of the global ocean vertical velocities ( Eulerian, eddy-induced, and remainder ) from a dynamically reproducible and data-constrained ocean state estimate are presented and analyzed. conventional patterns of vertical speed, Ekman pumping, appear in the upper ocean, with topographical laterality at depth. Intense and vertically coherent upwelling and downwelling occur in the Southern Ocean, which are probably due to the interaction of the Antarctic Circumpolar Current and large-scale topographical features and are generally canceled out in the conventional zonally average results. These “ elevators ” at high latitudes connect the upper to the deep and abysmal oceans and working together with isopycnal mix are likely a mechanism, in addition to the formation of deep and abyssal waters, for fast responses of the thick and abyssal oceans to the changing climate. besides, Eulerian and parameterized eddy-induced components are of opposite signs in numerous regions around the global ocean, peculiarly in the ocean interior away from surface and bottom. Nevertheless, residual vertical speed is primarily determined by the Eulerian part, and related to winds and large-scale topographical features. The current estimates of vertical velocities can serve as a utilitarian character for investigating the vertical exchange of ocean properties and tracers, and its complex spatial social organization ultimately permits regional tests of basic oceanographic concepts such as Sverdrup libra and coastal upwelling/downwelling. Keywords: 4220 Coral reef systems, 4260 Ocean data assimilation and reanalysis, 4279 Upwelling and convergences, 4532 General circulation, Southern Ocean, climate transfer, ocean state calculate, vertical exchange, vertical transportation, vertical speed ECCO Products Used: ECCO-V4URL: http://dx.doi.org/10.1002/2017JC012985 Other URLs:
Vondrák, Jan; Ron, C.; Chapanov, Ya. (2017). New determination of period and quality factor of Chandler wobble, considering geophysical excitations, Advances in Space Research, 5 (59), 1395-1407, 10.1016/j.asr.2016.12.001. Title: New determination of period and quality divisor of Chandler careen, considering geophysical excitations Type: Journal article Publication: Advances in Space Research Author(s): Vondrák, Jan ; Ron, C. ; Chapanov, Ya. Year: 2017 Formatted Citation: Vondrák, J., C. Ron, and Y. Chapanov, 2017 : New determination of period and quality factor of Chandler shimmy, considering geophysical excitations. Advances in Space Research, 59 ( 5 ), 1395-1407, doi:10.1016/j.asr.2016.12.001 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: https://linkinghub.elsevier.com/retrieve/pii/S027311771630686X Other URLs:
Seroussi, Hélène; Nakayama, Y.; Larour, E.; Menemenlis, Dimitris; Morlighem, M.; Rignot, E.; Khazendar, A. (2017). Continued retreat of Thwaites Glacier, West Antarctica, controlled by bed topography and ocean circulation, Geophysical Research Letters, 12 (44), 6191-6199, 10.1002/2017GL072910. Title: Continued retreat of Thwaites Glacier, West Antarctica, controlled by bed topography and ocean circulation Type: Journal article Publication: Geophysical Research Letters Author(s): Seroussi, Hélène ; Nakayama, Y. ; Larour, E. ; Menemenlis, Dimitris ; Morlighem, M. ; Rignot, E. ; Khazendar, A. Year: 2017 Formatted Citation: Seroussi, H., Y. Nakayama, E. Larour, D. Menemenlis, M. Morlighem, E. Rignot, and A. Khazendar, 2017 : Continued retreat of Thwaites Glacier, West Antarctica, controlled by bed topography and ocean circulation. Geophys. Res. Lett., 44 ( 12 ), 6191-6199, doi:10.1002/2017GL072910 Abstract: Keywords: ECCO Products Used: ECCO2 ; IceSheetURL: http://doi.wiley.com/10.1002/2017GL072910 Other URLs:
Volkov, Denis L.; Lee, Sang-Ki; Landerer, Felix W.; Lumpkin, Rick (2017). Decade-long deep-ocean warming detected in the subtropical South Pacific, Geophysical Research Letters, 2 (44), 927-936, 10.1002/2016GL071661. Title: Decade-long deep-ocean calefacient detected in the subtropical South Pacific Type: Journal article Publication: Geophysical Research Letters Author(s): Volkov, Denis L. ; Lee, Sang-Ki ; Landerer, Felix W. ; Lumpkin, Rick Year: 2017 Formatted Citation: Volkov, D. L., S. Lee, F. W. Landerer, and R. Lumpkin, 2017 : Decade-long deep-ocean calefacient detected in the subtropical South Pacific. Geophys. Res. Lett., 44 ( 2 ), 927-936, doi:10.1002/2016GL071661 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2016GL071661 Other URLs:
Fukumori, Ichiro; Wang, Ou; Fenty, Ian; Forget, Gael; Heimbach, Patrick; Ponte, Rui M. (2017). ECCO Version 4 Release 3. Title: ECCO Version 4 Release 3 Type: Report Publication: Author(s): Fukumori, Ichiro ; Wang, Ou ; Fenty, Ian ; Forget, Gael ; Heimbach, Patrick ; Ponte, Rui M. Year: 2017 Formatted Citation: Fukumori, I., O. Wang, I. Fenty, G. Forget, P. Heimbach, and R. M. Ponte, 2017 : ECCO Version 4 Release 3., 10 pp. doi:1721.1/110380. Abstract: This notice provides a brief outline of ECCO Version 4 Release 3, an update edition to the ball-shaped ocean department of state estimate described by Forget et aluminum. ( 2015b, 2016 ), covering the period 1992-2015. Keywords: ECCO Products Used: ECCO-V4 ; LLC_hiresURL: https://dspace.mit.edu/handle/1721.1/110380 Other URLs: hypertext transfer protocol : //hdl.handle.net/1721.1/110380
Piecuch, Christopher G; Ponte, Rui M; Little, Christopher M; Buckley, Martha W; Fukumori, Ichiro (2017). Mechanisms underlying recent decadal changes in subpolar North Atlantic Ocean heat content, Journal of Geophysical Research: Oceans, 9 (122), 7181-7197, 10.1002/2017JC012845. Title: Mechanisms underlying late decadal changes in subpolar North Atlantic Ocean estrus capacity Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Piecuch, Christopher G ; Ponte, Rui M ; Little, Christopher M ; Buckley, Martha W ; Fukumori, Ichiro Year: 2017 Formatted Citation: Piecuch, C. G., R. M. Ponte, C. M. Little, M. W. Buckley, and I. Fukumori, 2017 : Mechanisms underlying holocene decadal changes in subpolar North Atlantic Ocean heat message. J. Geophys. Res. Ocean., 122 ( 9 ), 7181-7197, doi:10.1002/2017JC012845 Abstract: The subpolar North Atlantic ( SPNA ) is submit to strong decadal unevenness, with implications for come on climate and its predictability. In 2004-2005, SPNA decadal upper ocean and sea-surface temperature trends reversed from warming during 1994-2004 to cooling over 2005-2015. This late decadal course reversal in SPNA ocean estrus content ( OHC ) is studied using a physically coherent, observationally constrained ball-shaped ocean state estimate covering 1992-2015. The calculate ‘s physical consistency facilitates quantitative causal attribution of ocean variations. Closed inflame budget diagnostics reveal that the SPNA OHC drift reversal is the solution of hotness advection by midlatitude ocean circulation. Kinematic decompositions reveal that changes in the deep and intermediate upright overturning circulation can not account for the vogue reversal, but quite ocean heat transports by horizontal coil circulations render the basal contributions. The transformation in horizontal coil advection reflects anomalous circulation acting on the beggarly temperature gradients. maximal covariance analysis ( MCA ) reveals impregnable covariation between the anomalous horizontal coil circulation and variations in the local anesthetic wind instrument stress coil, suggestive of a Sverdrup response. Results have implications for decadal predictability. Keywords: 1616 Climate variability, 3305 Climate transfer and unevenness, 4513 Decadal ocean variability, 4532 General circulation, Atlantic multidecadal unevenness, Sverdrup poise, decadal unevenness, heat content, ocean state estimate, overturning circulation ECCO Products Used: ECCO-V4URL: http://dx.doi.org/10.1002/2017JC012845 Other URLs:
Schwedes, Tobias; Ham, David A.; Funke, Simon W.; Piggott, Matthew D. (2017). Introduction to PDE-constrained optimisation, Mesh Dependence in PDE-Constrained Optimisation, 1-52, 10.1007/978-3-319-59483-5_1. Title: Introduction to PDE-constrained optimization Type: Book section Publication: Mesh Dependence in PDE-Constrained Optimisation Author(s): Schwedes, Tobias ; Ham, David A. ; Funke, Simon W. ; Piggott, Matthew D. Year: 2017 Formatted Citation: Schwedes, T., D. A. Ham, S. W. Funke, and M. D. Piggott, 2017 : introduction to PDE-constrained optimization. engagement addiction in PDE-Constrained Optimisation, Springer International Publishing, 1-52, doi:10.1007/978-3-319-59483-5_1 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://link.springer.com/10.1007/978-3-319-59483-5_1 Other URLs:
Harrison, Daniel P. (2017). Global negative emissions capacity of ocean macronutrient fertilization, Environmental Research Letters, 3 (12), 035001, 10.1088/1748-9326/aa5ef5. Title: Global minus emissions capacity of ocean macronutrient fertilization Type: Journal article Publication: Environmental Research Letters Author(s): Harrison, Daniel P. Year: 2017 Formatted Citation: Harrison, D. P., 2017 : Global negative emissions capacity of ocean macronutrient fertilization. environmental Research Letters, 12 ( 3 ), 035001, doi:10.1088/1748-9326/aa5ef5 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://stacks.iop.org/1748-9326/12/i=3/a=035001?key=crossref.c48b784e5caabd045debab6fa4036e0d Other URLs:
Ngeve, Magdalene N; Van der Stocken, Tom; Menemenlis, Dimitris; Koedam, Nico; Triest, Ludwig (2017). Hidden founders? Strong bottlenecks and fine-scale genetic structure in mangrove populations of the Cameroon Estuary complex, Hydrobiologia, 1 (803), 189-207, 10.1007/s10750-017-3369-y. Title: Hidden founders ? impregnable bottlenecks and fine-scale familial social organization in mangrove populations of the Cameroon Estuary complex Type: Journal article Publication: Hydrobiologia Author(s): Ngeve, Magdalene N ; Van five hundred Stocken, Tom ; Menemenlis, Dimitris ; Koedam, Nico ; Triest, Ludwig Year: 2017 Formatted Citation: Ngeve, M. N., T. Van five hundred Stocken, D. Menemenlis, N. Koedam, and L. Triest, 2017 : Hidden founders ? strong bottlenecks and fine-scale genetic social organization in mangrove populations of the Cameroon Estuary building complex. Hydrobiologia, 803 ( 1 ), 189-207, doi:10.1007/s10750-017-3369-y Abstract: Fine-scale genetic structure ( FSGS ) is common in plants, driven by several ecological and evolutionary processes, among which is gene stream. Mangrove trees trust on ocean coat currents to spread their hydrochorous propagules through space. Since pollen dispersion is by and large restricted to local scales, high degree of short-distance propagule dispersion is expected to result in FSGS in Rhizophora spp. We investigated FSGS, holocene bottleneck events, a well as historical and contemporary expansion patterns in Rhizophora racemosa populations from the entire coast of Cameroon, using 11 polymorphic microsatellite markers. Populations of the Cameroon Estuary complex ( CEC ) showed significant FSGS and significant decrease in effective population sizes ( holocene bottlenecks ), compared to the other areas. additionally, our results indicate austere differences between diachronic and contemporary expansion models. These suggest that contemporary processes such as restrict propagule dispersion, constriction events from high indirect and direct anthropogenetic pressure, and recolonization by founders from ancient local anesthetic pockets/refugia most credibly shape the patterns of FSGS in the CEC. Keywords: ECCO Products Used: LLC_hiresURL: https://doi.org/10.1007/s10750-017-3369-y Other URLs:
Marshall, John; Scott, Jeffery; Proshutinsky, Andrey (2017). “Climate response functions” for the Arctic Ocean: a proposed coordinated modelling experiment, Geoscientific Model Development, 7 (10), 2833-2848, 10.5194/gmd-10-2833-2017. Title: “ Climate reception functions ” for the Arctic Ocean : a proposed coordinated modelling experiment Type: Journal article Publication: Geoscientific Model Development Author(s): Marshall, John ; Scott, Jeffery ; Proshutinsky, Andrey Year: 2017 Formatted Citation: Marshall, J., J. Scott, and A. Proshutinsky, 2017 : “ Climate response functions ” for the Arctic Ocean : a proposed coordinated modelling experiment. Geoscientific Model Development, 10 ( 7 ), 2833-2848, doi:10.5194/gmd-10-2833-2017 Abstract: A align set of Arctic model experiments, which explore how the Arctic responds to changes in external pull, is proposed. Our goal is to compute and compare climate response functions ( CRFs ) – the ephemeral reception of winder discernible indicators such as sea-ice extent, fresh water content of the Beaufort Gyre, etc. – to abrupt footstep changes in forcing fields across a count of Arctic models. Changes in fart, fresh water sources, and inflows to the Arctic basin are considered. Convolutions of known or postulated time series of these forcing fields with their respective CRFs then yield the ( linear ) response of these observables. This allows the plan to inform, and interface directly with, Arctic observations and observers and the climate change community. here we outline the rationale behind such experiments and illustrate our approach in the context of a coarse-resolution model of the Arctic based on the MITgcm. We conclude by summarizing the expect benefits of such an activity and encourage other modelling groups to compute CRFs with their own models so that we might begin to document their robustness to model conceptualization, resoluteness, and parameterization. Keywords: ECCO Products Used: ECCO2URL: https://www.geosci-model-dev.net/10/2833/2017/ Other URLs:
Clayton, Sophie; Dutkiewicz, Stephanie; Jahn, Oliver; Hill, Christopher; Heimbach, Patrick; Follows, Michael J. (2017). Biogeochemical versus ecological consequences of modeled ocean physics, Biogeosciences, 11 (14), 2877-2889, 10.5194/bg-14-2877-2017. Title: Biogeochemical versus ecological consequences of model ocean physics Type: Journal article Publication: Biogeosciences Author(s): Clayton, Sophie ; Dutkiewicz, Stephanie ; Jahn, Oliver ; Hill, Christopher ; Heimbach, Patrick ; Follows, Michael J. Year: 2017 Formatted Citation: Clayton, S., S. Dutkiewicz, O. Jahn, C. Hill, P. Heimbach, and M. J. Follows, 2017 : Biogeochemical versus ecological consequences of modeled ocean physics. Biogeosciences, 14 ( 11 ), 2877-2889, doi:10.5194/bg-14-2877-2017 Abstract: We present a taxonomic study of the differences generated by coupling the like ecological-biogeochemical model to a 1°, coarse-resolution, and 1∕6°, eddy-permitting, ball-shaped ocean circulation model to ( a ) biogeochemistry ( for example, primary output ) and ( barn ) phytoplankton community structure. surprisingly, we find that the model phytoplankton community is largely unchanged, with the same phenotypes dominating in both cases. conversely, there are large regional and seasonal worker variations in primary production, phytoplankton and zooplankton biomass. In the subtropics, interracial layer depths ( MLDs ) are, on median, deep in the eddy-permitting model, resulting in higher nutrient supply driving increases in primary output and phytoplankton biomass. In the higher latitudes, differences in winter interracial layer depths, the time of the attack of the leap efflorescence and erect nutrient supply result in lower primary coil production in the eddy-permitting model. counterintuitively, this does not drive a decrease in phytoplankton biomass but results in lower zooplankton biomass. We explain these similarities and differences in the exemplar using the framework of resource competition theory, and find that they are the consequence of changes in the regional and seasonal food supply and light environment, mediated by differences in the model assorted layer depths. Although previous oeuvre has suggested that complex models may respond chaotically and erratically to changes in force, we find that our exemplary responds in a predictable direction to different ocean circulation coerce, despite its complexity. The practice of frameworks, such as resource competition hypothesis, provides a amenable way to explore the differences and similarities that occur. As this model has many similarities to other widely used biogeochemical models that besides resolve multiple phytoplankton phenotypes, this report provides crucial insights into how the results of running these models under different physical conditions might be more well understand. Keywords: ECCO Products Used: ECCO-V3 ; ECCO2URL: http://www.biogeosciences.net/14/2877/2017/ Other URLs: hypertext transfer protocol : //www.biogeosciences.net/14/2877/2017/
Bashmachnikov, I. L.; Belonenko, T. V.; Kuibin, P. A. (2017). Application of the theory of columnar Q-vortices with helical structure for the Lofoten vortex in the Norwegian Sea, Bulletin of Saint-Petersburg University Earth Sciences, 62 (3), 221-236. Title: Application of the hypothesis of columniform Q-vortices with coiling structure for the Lofoten whirl in the norwegian Sea Type: Journal article Publication: Bulletin of Saint-Petersburg University Earth Sciences Author(s): Bashmachnikov, I. L. ; Belonenko, T. V. ; Kuibin, P. A. Year: 2017 Formatted Citation: Bashmachnikov, I. L., T. V. Belonenko, and P. A. Kuibin, 2017 : application of the theory of columnar Q-vortices with coiling structure for the Lofoten whirlpool in the norwegian Sea. Bulletin of Saint-Petersburg University Earth Sciences, 3 ( 62 ), 221-236, hypertext transfer protocol : //dspace.spbu.ru/bitstream/11701/8985/1/01-Bashmachnikov.pdf Abstract: In this paper, active characteristics of mesoscale vortices in the ocean are considered using the theory of columnar vortices with a coiling structure. The radial profile of the relative vorticity is ap- proximated with the Q-distribution. Expressions connecting the distributions of the horizontal and upright speed components in this type of vortices are obtained. The limitations for the applicability of the analytic solution are derived. The advantages and disadvantages of this model are shown in comparison with the radial distributions of the represent parameters in Scully and in Rayleigh vortices. In especial, it is shown that the Q-distribution can, in some common sense, be considered as a com- promise solution between the two distributions above. The hypothesis of columnar Q-vortices with coiling social organization is applied to the permanently existing anticyclonic Lofoten whirl of the norwegian Sea. The average radial distributions of respective dynamics characteristics of the Lofoten whirl are obtained using simulations with the regional hydrodynamic model MIT. The reasons for geological formation of the note vertical speed structure are analyzed. It is shown that, in contrast to atmospheric synoptic structures, divergence of Ekman fluxes in the bottom layer affects only the lower depart of the whirlpool. In the upper ocean, ascending upright apparent motion is observed in the Lofoten whirl. It is assumed that horizontal dis- persion of whirl energy, the most acute in the airfoil level, plays an essential function in the formation of the field of erect velocities in the upper region of its effect. Keywords: Lofoten whirl, MIT hydrodynamics model, norwegian Sea, Q-vortex, discrepancy, radial speed structure ECCO Products Used: ECCO2URL: https://dspace.spbu.ru/bitstream/11701/8985/1/01-Bashmachnikov.pdf Other URLs:
Wagner, Till J. W.; Dell, Rebecca W.; Eisenman, Ian (2017). An Analytical Model of Iceberg Drift, Journal of Physical Oceanography, 7 (47), 1605-1616, 10.1175/JPO-D-16-0262.1. Title: An analytic model of Iceberg Drift Type: Journal article Publication: Journal of Physical Oceanography Author(s): Wagner, Till J. W. ; Dell, Rebecca W. ; Eisenman, Ian Year: 2017 Formatted Citation: Wagner, T. J. W., R. W. Dell, and I. Eisenman, 2017 : An analytic model of Iceberg Drift. Journal of Physical Oceanography, 47 ( 7 ), 1605-1616, doi:10.1175/JPO-D-16-0262.1 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/10.1175/JPO-D-16-0262.1 Other URLs:
Han, Bing (2017). The conversion rate of lee waves and the energetics of internal tides. Title: The conversion rate of lee waves and the energetics of home tides Type: thesis Publication: Author(s): Han, Bing Year: 2017 Formatted Citation: Han, B., 2017 : The conversion rate of lee waves and the energetics of internal tides., 130 pp. Abstract: Tides and geostrophic flows are two significant energy sources for the desegregate in the deep ocean. The ball-shaped conversion rate of internal lee waves generated by geostrophic flows, the baroclinic tide generated by the barotropic tide over sinusoidal topography and the energy budgets of home waves at the Luzon ridge calculated from both planar and cubic simulations are investigated in this newspaper. It is aimed to give us a better understanding of the role of tides and geostrophic flows in ocean dynamics. This wallpaper consists of four parts. first, the conversion rate of internal downwind waves generated by geostrophic flows is calculated based on linear hypothesis. In decree to get a more accurate value, we use two methods to deal with the topographical spectrum. The individual balance beam sounding astuteness data, ball-shaped predicted abyssal mound rms heights, WOCE hydrographic atlas, speed data from SODA and ECCO2, average hang and eddy speed from the global eddy-permitting STORM model in a 1° × 1° grid are used for the calculations. By using these data, we can not merely compare with the results from different speed and topography databases, but besides get the deviation between the conversion rate from the eddies and from the mean hang. The results show that the conversion rates calculated using SODA, ECCO2, entail flow and eddy speed from the global eddy-permitting STORM model are between 0.03 and 0.23 TW, and the difference between the conversion rate from the eddies and from the bastardly flow is between 0.05 and 0.11 TW. second, a serial of experiments are set up to investigate the baroclinic tide generated by barotropic tide over sinusoidal topography. The baroclinic speed fields generated are quite different between in subcritical cases and in supercritical cases. The effects of the height of the topography, the amplitude of the barotropic tidal speed, the stratification and the width of the topography on the baroclinic tide generated are studied in this chapter. The results show that the energy flux is about proportional to the squarely of the height of the topography and the square of the amplitude of the barotropic tide ; the energy flow will be larger when the width of topography is smaller and the stratification is stronger ; there is about no energy flow generated in experiments with besides weak stratification or besides wide topogaphy. The results predicted by the linear theory agree well with the results calculated by C1 ( energy flow ) in most cases, and the results calculated by C2 ( conversion pace ) are larger than the results calculated by C1 in most cases ( the definitions of C1 and C2 could be found in Chapter 3 ). third, planar MIT General Circulation Model ( MITgcm ) is used to simulate internal waves at the Luzon ridge. here, the topography is represented by two ideal gaussian hills. The baroclinic energy budget of inner waves is studied and the conversion rate is chiefly balanced by the energy flux. The effects of the stature of the west ridge, the distance between the two ridges and the amplitude of the barotropic tide on the energy flow and conversion pace are besides investigated. It is found that as the height of the west ridge increases, the westbound department of energy flow increases ; the home tides can be enhanced due to a suitable distance between the two ridges ; the amplitude of the barotropic tide is one of the crucial factors to determine whether the internal solitary confinement waves would be generated or not, furthermore, when the amplitude of the barotropic tide is larger, the amphetamine of the internal lone waves generated will be larger. finally, cubic simulations of inner tides at the Luzon ridge are shown. The MITgcm is used to study the M2 and K1 inner tides and the datum from WOCE and SODA are used to give the stratification hera. In this chapter, not entirely the barotropic energy budget and baroclinic energy budget but besides the barotropic kinetic energy budget and baroclinic energizing energy budget are analyzed. About 15.1 GW is transferred from the M2 barotropic tide to the baroclinic tide, which is about 88 % of the barotropic input. The energy flux is about 4.5 GW, and the total profligacy is about 11.3 GW. The convention ( Nycander, 2005 ) may underestimate the conversion rate at the Luzon ridge. Keywords: ECCO Products Used: ECCO2URL: http://ediss.sub.uni-hamburg.de/volltexte/2017/8667/pdf/Dissertation.pdf Other URLs: hypertext transfer protocol : //d-nb.info/1138359890/34
Liu, Chengyan; Wang, Zhaomin; Cheng, Chen; Xia, Ruibin; Li, Bingrui; Xie, Zelin (2017). Modeling modified Circumpolar Deep Water intrusions onto the Prydz Bay continental shelf, East Antarctica, Journal of Geophysical Research: Oceans, 7 (122), 5198-5217, 10.1002/2016JC012336. Title: Modeling modified Circumpolar Deep Water intrusions onto the Prydz Bay continental shelf, East Antarctica Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Liu, Chengyan ; Wang, Zhaomin ; Cheng, Chen ; Xia, Ruibin ; Li, Bingrui ; Xie, Zelin Year: 2017 Formatted Citation: Liu, C., Z. Wang, C. Cheng, R. Xia, B. Li, and Z. Xie, 2017 : Modeling modified circumpolar Deep Water intrusions onto the Prydz Bay continental ledge, East Antarctica. J. Geophys. Res. Ocean., 122 ( 7 ), 5198-5217, doi:10.1002/2016JC012336 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2016JC012336 Other URLs:
Kleinherenbrink, Marcel; Riva, Riccardo; Frederikse, Thomas; Merrifield, Mark; Wada, Yoshihide (2017). Trends and interannual variability of mass and steric sea level in the Tropical Asian Seas, Journal of Geophysical Research: Oceans, 8 (122), 6254-6276, 10.1002/2017JC012792. Title: Trends and interannual variability of mass and steric sea level in the Tropical Asian Seas Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Kleinherenbrink, Marcel ; Riva, Riccardo ; Frederikse, Thomas ; Merrifield, Mark ; Wada, Yoshihide Year: 2017 Formatted Citation: Kleinherenbrink, M., R. Riva, T. Frederikse, M. Merrifield, and Y. Wada, 2017 : Trends and interannual unevenness of mass and steric ocean tied in the Tropical Asian Seas. J. Geophys. Res. Ocean., 122 ( 8 ), 6254-6276, doi:10.1002/2017JC012792 Abstract: Keywords: ECCO Products Used: ECCO-KFS ; ECCO-V4URL: http://doi.wiley.com/10.1002/2017JC012792 Other URLs:
Cai, Cilan; Rignot, Eric; Menemenlis, Dimitris; Nakayama, Yoshihiro (2017). Observations and modeling of ocean-induced melt beneath Petermann Glacier Ice Shelf in northwestern Greenland, Geophysical Research Letters, 16 (44), 8396-8403, 10.1002/2017GL073711. Title: Observations and model of ocean-induced melt beneath Petermann Glacier Ice Shelf in northwestern Greenland Type: Journal article Publication: Geophysical Research Letters Author(s): Cai, Cilan ; Rignot, Eric ; Menemenlis, Dimitris ; Nakayama, Yoshihiro Year: 2017 Formatted Citation: Cai, C., E. Rignot, D. Menemenlis, and Y. Nakayama, 2017 : Observations and model of ocean-induced melt beneath Petermann Glacier Ice Shelf in northwestern Greenland. Geophys. Res. Lett., 44 ( 16 ), 8396-8403, doi:10.1002/2017GL073711 Abstract: Keywords: ECCO Products Used: IceSheetURL: http://doi.wiley.com/10.1002/2017GL073711 Other URLs:
Blunden, Jessica; Arndt, Derek S. (2017). State of the Climate in 2016, Bulletin of the American Meteorological Society, 8 (98), Si-S280, 10.1175/2017BAMSStateoftheClimate.1. Title: State of the Climate in 2016 Type: Journal article Publication: Bulletin of the american Meteorological society Author(s): Blunden, Jessica ; Arndt, Derek S. Year: 2017 Formatted Citation: Blunden, J., and D. S. Arndt, 2017 : state of the Climate in 2016. Bull. Am. Meteorol. Soc., 98 ( 8 ), Si-S280, doi:10.1175/2017BAMSStateoftheClimate.1 Abstract: Editor ‘s note : For easy download the posted pdf of the State of the Climate for 2017 is a low-resolution charge. A high-resolution copy of the report is available by clicking here. Please be patient as it may take a few minutes for the high-resolution file to download. Keywords: ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/10.1175/2017BAMSStateoftheClimate.1 Other URLs: hypertext transfer protocol : //journals.ametsoc.org/bams/article/98/8/Si/216075/State-of-the-Climate-in-2016
Chalamalla, Vamsi K; Santilli, Edward; Scotti, Alberto; Jalali, Masoud; Sarkar, Sutanu (2017). SOMAR-LES: A framework for multi-scale modeling of turbulent stratified oceanic flows, Ocean Modelling (120), 101-119, 10.1016/j.ocemod.2017.11.003. Title: SOMAR-LES : A framework for multi-scale model of disruptive stratified oceanic flows Type: Journal article Publication: Ocean Modelling Author(s): Chalamalla, Vamsi K ; Santilli, Edward ; Scotti, Alberto ; Jalali, Masoud ; Sarkar, Sutanu Year: 2017 Formatted Citation: Chalamalla, V. K., E. Santilli, A. Scotti, M. Jalali, and S. Sarkar, 2017 : SOMAR-LES : A framework for multi-scale modeling of churning stratified oceanic flows. Ocean Modelling, 120, 101-119, doi:10.1016/j.ocemod.2017.11.003 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://linkinghub.elsevier.com/retrieve/pii/S1463500317301786 Other URLs:
Wagner, Till J.W.; Stern, Alon A.; Dell, Rebecca W.; Eisenman, Ian (2017). On the representation of capsizing in iceberg models, Ocean Modelling (117), 88-96, 10.1016/j.ocemod.2017.07.003. Title: On the representation of capsizing in iceberg models Type: Journal article Publication: Ocean Modelling Author(s): Wagner, Till J.W. ; Stern, Alon A. ; Dell, Rebecca W. ; Eisenman, Ian Year: 2017 Formatted Citation: Wagner, T. J., A. A. Stern, R. W. Dell, and I. Eisenman, 2017 : On the representation of capsizing in crisphead lettuce models. Ocean Modelling, 117, 88-96, doi:10.1016/j.ocemod.2017.07.003 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://linkinghub.elsevier.com/retrieve/pii/S1463500317301129 Other URLs:
Zhang, Xianming; Zhang, Yanxu; Dassuncao, Clifton; Lohmann, Rainer; Sunderland, Elsie M. (2017). North Atlantic Deep Water formation inhibits high Arctic contamination by continental perfluorooctane sulfonate discharges, Global Biogeochemical Cycles, 8 (31), 1332-1343, 10.1002/2017GB005624. Title: North Atlantic Deep Water formation inhibits high Arctic contamination by continental perfluorooctane sulfonate discharges Type: Journal article Publication: Global Biogeochemical Cycles Author(s): Zhang, Xianming ; Zhang, Yanxu ; Dassuncao, Clifton ; Lohmann, Rainer ; Sunderland, Elsie M. Year: 2017 Formatted Citation: Zhang, X., Y. Zhang, C. Dassuncao, R. Lohmann, and E. M. Sunderland, 2017 : North Atlantic Deep Water geological formation inhibits high Arctic contaminant by continental perfluorooctane sulfonate discharges. Global Biogeochemical Cycles, 31 ( 8 ), 1332-1343, doi:10.1002/2017GB005624 Abstract: Keywords: ECCO Products Used: ECCO-V3URL: http://doi.wiley.com/10.1002/2017GB005624 Other URLs:
Bigdeli, Arash; Loose, Brice; Nguyen, An T.; Cole, Sylvia T. (2017). Numerical investigation of the Arctic ice-ocean boundary layer and implications for air-sea gas fluxes, Ocean Science, 1 (13), 61-75, 10.5194/os-13-61-2017. Title: numeric probe of the Arctic ice-ocean boundary layer and implications for air-sea gas fluxes Type: Journal article Publication: Ocean Science Author(s): Bigdeli, Arash ; Loose, Brice ; Nguyen, An T. ; Cole, Sylvia T. Year: 2017 Formatted Citation: Bigdeli, A., B. Loose, A. T. Nguyen, and S. T. Cole, 2017 : numeral probe of the Arctic ice-ocean limit layer and implications for air-sea natural gas fluxes. Ocean Science, 13 ( 1 ), 61-75, doi:10.5194/os-13-61-2017 Abstract: In ice-covered regions it is challenging to determine constituent budgets – for heat and momentum, but besides for biologically and climatically active gases like carbon paper dioxide and methane. The harsh environment and relative data scarcity make it unmanageable to characterize even the physical properties of the ocean surface. here, we sought to evaluate if numeric model output helps us to better estimate the forcible storm that drives the air-sea flatulence substitution rate ( kilobyte ) in ocean ice zones. We used the budget of radioactive 222Rn in the blend layer to illustrate the impression that ocean internal-combustion engine force has on gasoline budgets and air-sea gas substitute. Appropriate constraint of the 222Rn budget requires estimates of sea ice speed, concentration, mixed-layer depth, and water velocities, arsenic well as their evolution in time and distance along the Lagrangian drift track of a mixed-layer water parcel. We used 36, 9 and 2km horizontal resolving power of regional Massachusetts Institute of Technology general circulation model ( MITgcm ) shape with ticket vertical spacing to evaluate the capability of the model to reproduce these parameters. We then compared the model results to existing field data including satellite, moorings and ice-tethered profilers. We found that mood sea ice rink coverage agrees with satellite-derived notice 88 to 98 % of the time when averaged over the Beaufort Gyre, and exemplary ocean ice speeds have 82 % correlation with observations. The model demonstrated the capability to capture the wide trends in the mix layer, although with a significant bias. Model water system velocities showed only 29 % correlation coefficient with point-wise in situ data. This correlation remained humble in all three model resolution simulations and we argued that is largely ascribable to the quality of the input atmospheric force. overall, we found that even the coarse-resolution model can make a meek contribution to gas exchange parameterization, by resolving the time variation of parameters that drive the 222Rn budget, including pace of mixed-layer variety and ocean frost forcings. Keywords: ECCO Products Used: ECCO2 ; SeaIceURL: https://www.ocean-sci.net/13/61/2017/ Other URLs:
Qiu, Bo; Chen, Shuiming; Schneider, Niklas (2017). Dynamical Links between the Decadal Variability of the Oyashio and Kuroshio Extensions, Journal of Climate, 23 (30), 9591-9605, 10.1175/jcli-d-17-0397.1. Title: Dynamical Links between the Decadal Variability of the Oyashio and Kuroshio Extensions Type: Journal article Publication: Journal of Climate Author(s): Qiu, Bo ; Chen, Shuiming ; Schneider, Niklas Year: 2017 Formatted Citation: Qiu, B., S. Chen, and N. Schneider, 2017 : dynamic Links between the Decadal Variability of the Oyashio and Kuroshio Extensions. J. Clim., 30 ( 23 ), 9591-9605, doi:10.1175/jcli-d-17-0397.1 Abstract: Rather than a unmarried and continuous boundary current outflow, long-run satellite observations reveal that the Oyashio Extension ( OE ) in the North Pacific Subarctic Gyre comprises two freelancer, northeast-southwest-slanted presence systems. With a mean latitude along 40°N, the western OE front exists chiefly west of 153°E and is a lengthiness of the subarctic coil western boundary current. The eastern OE battlefront, besides appearing along 40°N, is located between 153° and 170°E, whose entity is disconnected from its western counterpart. During 1982-2016, both of the OE fronts exhibit big decadal fluctuations, although their signals show little coetaneous correlation coefficient. An upper-ocean temperature budget psychoanalysis based on the Estimating the Circulation and Climate of the Ocean, phase II ( ECCO2 ), express estimate reveals that the advective temperature flux overlap plays a critical character in determining the low-frequency temperature changes relating to the OE fronts. specifically, the western OE front variability is controlled by the decadal mesoscale eddy modulations in the upstream Kuroshio Extension ( KE ). An enhance eddy activeness increases the poleward heat transport and works to strengthen the western OE front. The easterly OE front unevenness, on the other hand, is dictated by both the meridional shift of the KE position and the circulation intensity change immediately north of the easterly OE. Different baroclinic adaptation speeds for the KE and OE are found to cause the in-phase changes between these latter two processes. Lack of contemporaneous correlation coefficient between the decadal western and eastern OE variability is found to be related to the interaction of the meridionally migrating KE jet with the Shatsky Rise near 159°E. Keywords: Advection, Atmosphere-ocean interaction, Boundary currents, Decadal variability, Fronts, Oceanic unevenness ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/abs/10.1175/JCLI-D-17-0397.1 Other URLs:
Mukherjee, Arnab (2017). Intraseasonal variability of currents along east coast of India. Title: Intraseasonal unevenness of currents along east coast of India Type: thesis Publication: Author(s): Mukherjee, Arnab Year: 2017 Formatted Citation: Mukherjee, A., 2017 : Intraseasonal variability of currents along east coast of India., 194 pp. hypertext transfer protocol : //irgu.unigoa.ac.in/drs/bitstream/handle/unigoa/5539/mukherjee_a_2017.pdf ? sequence=1. Abstract: Keywords: ECCO Products Used: ECCO2URL: http://irgu.unigoa.ac.in/drs/bitstream/handle/unigoa/5539/mukherjee_a_2017.pdf?sequence=1 Other URLs:
Aguiar, Wilton; Mata, Mauricio M.; Kerr, Rodrigo (2017). On deep convection events and Antarctic Bottom Water formation in ocean reanalysis products, Ocean Science, 6 (13), 851-872, 10.5194/os-13-851-2017. Title: On deep convection events and Antarctic Bottom Water formation in ocean reanalysis products Type: Journal article Publication: Ocean Science Author(s): Aguiar, Wilton ; Mata, Mauricio M. ; Kerr, Rodrigo Year: 2017 Formatted Citation: Aguiar, W., M. M. Mata, and R. Kerr, 2017 : On deep convection events and Antarctic Bottom Water formation in ocean reanalysis products. Ocean Science, 13 ( 6 ), 851-872, doi:10.5194/os-13-851-2017 Abstract: Open ocean deep convection is a coarse reservoir of mistake in the representation of Antarctic Bottom Water ( AABW ) formation in ocean general circulation models. Although those events are well described in non-assimilatory ocean simulations, the holocene appearance of a massive open ocean polynya in the Estimating the Circulation and Climate of the Ocean Phase II reanalysis merchandise ( ECCO2 ) raises questions on which mechanisms are responsible for those specious events and whether they are besides give in other state-of-the-art assimilating reanalysis products. To investigate this issue, we evaluate how three recently released high-resolution ocean reanalysis products form AABW in their simulations. We found that two of the products create AABW by open ocean deep convection events in the Weddell Sea that are triggered by the interaction of sea frost with the Warm Deep Water, which shows that the assimilation of ocean internal-combustion engine is not enough to avoid the appearance of overt ocean polynya. The one-third reanalysis, My Ocean University Reading UR025.4, creates AABW using a quite dynamically accurate mechanism. The UR025.4 product depicts both continental ledge convection and the export of Dense Shelf Water to the capable ocean. Although the accuracy of the AABW geological formation in this reanalysis product represents an advancement in the representation of the Southern Ocean dynamics, the differences between the real and simulate processes suggest that hearty improvements in the ocean reanalysis products are distillery needed to accurately represent AABW formation. Keywords: ECCO Products Used: ECCO2URL: https://www.ocean-sci.net/13/851/2017/ Other URLs:
Ardhuin, Fabrice; Gille, Sarah T.; Menemenlis, Dimitris; Rocha, Cesar B.; Rascle, Nicolas; Chapron, Bertrand; Gula, Jonathan; Molemaker, Jeroen (2017). Small-scale open ocean currents have large effects on wind wave heights, Journal of Geophysical Research: Oceans, 6 (122), 4500-4517, 10.1002/2016JC012413. Title: Small-scale open ocean currents have large effects on wind wave heights Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Ardhuin, Fabrice ; Gille, Sarah T. ; Menemenlis, Dimitris ; Rocha, Cesar B. ; Rascle, Nicolas ; Chapron, Bertrand ; Gula, Jonathan ; Molemaker, Jeroen Year: 2017 Formatted Citation: Ardhuin, F., S. T. Gille, D. Menemenlis, C. B. Rocha, N. Rascle, B. Chapron, J. Gula, and J. Molemaker, 2017 : small-scale open ocean currents have large effects on wreathe brandish heights. J. Geophys. Res. Ocean., 122 ( 6 ), 4500-4517, doi:10.1002/2016JC012413 Abstract: Keywords: ECCO Products Used: LLC_hiresURL: http://doi.wiley.com/10.1002/2016JC012413 Other URLs:
Liu, Wei; Xie, Shang-Ping; Liu, Zhengyu; Zhu, Jiang (2017). Overlooked possibility of a collapsed Atlantic Meridional Overturning Circulation in warming climate, Science Advances, 1 (3). Title: Overlooked possibility of a crack up Atlantic Meridional Overturning Circulation in warming climate Type: Journal article Publication: Science Advances Author(s): Liu, Wei ; Xie, Shang-Ping ; Liu, Zhengyu ; Zhu, Jiang Year: 2017 Formatted Citation: Liu, W., S. Xie, Z. Liu, and J. Zhu, 2017 : Overlooked possibility of a break down Atlantic Meridional Overturning Circulation in warming climate. skill Advances, 3 ( 1 ), hypertext transfer protocol : //advances.sciencemag.org/content/3/1/e1601666.abstract Abstract: Changes in the Atlantic Meridional Overturning Circulation ( AMOC ) are moderate in most climate mannequin projections under increasing greenhouse gas force. This intermodel consensus may be an artifact of coarse model biases that favor a stable AMOC. Observationally based fresh water budget analyses suggest that the AMOC is in an fluid regimen susceptible for big changes in response to perturbations. By correcting the model biases, we show that the AMOC collapses 300 years after the atmospheric CO2 assiduity is abruptly doubled from the 1990 grade. Compared to an uncorrected model, the AMOC collapse brings about large, markedly unlike climate responses : a outstanding cool over the northerly North Atlantic and neighboring areas, sea internal-combustion engine increases over the Greenland-Iceland-Norwegian seas and to the south of Greenland, and a significant south rain-belt migration over the tropical Atlantic. Our results highlight the want to develop dynamic metrics to constrain models and the importance of reducing model biases in long-run climate projection. Keywords: ECCO Products Used: ECCO-V4URL: http://advances.sciencemag.org/content/3/1/e1601666.abstract Other URLs:
Liang, Xinfeng; Piecuch, Christopher G; Ponte, Rui M; Forget, Gael; Wunsch, Carl; Heimbach, Patrick (2017). Change of the Global Ocean Vertical Heat Transport over 1993-2010, Journal of Climate, 14 (30), 5319-5327, 10.1175/jcli-d-16-0569.1. Title: Change of the Global Ocean Vertical Heat Transport over 1993-2010 Type: Journal article Publication: Journal of Climate Author(s): Liang, Xinfeng ; Piecuch, Christopher G ; Ponte, Rui M ; Forget, Gael ; Wunsch, Carl ; Heimbach, Patrick Year: 2017 Formatted Citation: Liang, X., C. G. Piecuch, R. M. Ponte, G. Forget, C. Wunsch, and P. Heimbach, 2017 : switch of the Global Ocean Vertical Heat Transport over 1993-2010. J. Clim., 30 ( 14 ), 5319-5327, doi:10.1175/jcli-d-16-0569.1 Abstract: A dynamically and data-consistent ocean department of state estimate during 1993-2010 is analyzed for bidecadal changes in the mechanism of heat exchange between the upper and lower oceans. many patterns of change are consistent with prior studies. however, at respective levels above 1800 m the global integral of the change in ocean erect heat flux involves the summation of positive and negative regional contributions and is not statistically significant. The nonsignificance of transfer in the ball-shaped ocean upright heat tape drive from an ocean state appraisal that provides global coverage and regular sampling, spatially and temporally, raises the question of whether an adequate experimental database exists to assess changes in the amphetamine ocean inflame content over the by few decades. besides, whereas the advective terminus largely determines the spatial pattern of the change in ocean vertical heating system blend, its global integral is not significantly different from zero. In contrast, the diffusing condition, although regionally faint except in high-latitude oceans, produces a statistically significant extra down heat blend during the 2000s. This result suggests that besides ocean advection, ocean mix processes, including isopycnal and diapycnal deoxyadenosine monophosphate good as convective mix, are significant for the decadal mutant of the estrus exchange between upper and deep oceans equally well. Furthermore, the analyses herein indicate that focusing on any detail region in explaining changes of the global ocean heat contentedness is misleading. Keywords: Climate unevenness, Data assimilation, Decadal variability, Mixing, Ocean circulation ECCO Products Used: ECCO-V4URL: http://journals.ametsoc.org/doi/abs/10.1175/JCLI-D-16-0569.1 Other URLs:
King, Jennifer; Spreen, Gunnar; Gerland, Sebastian; Haas, Christian; Hendricks, Stefan; Kaleschke, Lars; Wang, Caixin (2017). Sea-ice thickness from field measurements in the northwestern Barents Sea, Journal of Geophysical Research: Oceans, 2 (122), 1497-1512, 10.1002/2016JC012199. Title: Sea-ice thickness from field measurements in the northwestern Barents Sea Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): King, Jennifer ; Spreen, Gunnar ; Gerland, Sebastian ; Haas, Christian ; Hendricks, Stefan ; Kaleschke, Lars ; Wang, Caixin Year: 2017 Formatted Citation: King, J., G. Spreen, S. Gerland, C. Haas, S. Hendricks, L. Kaleschke, and C. Wang, 2017 : Sea-ice thickness from field measurements in the northwestern Barents Sea. J. Geophys. Res. Ocean., 122 ( 2 ), 1497-1512, doi:10.1002/2016JC012199 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2016JC012199 Other URLs:
Belonenko, T. V.; Bashmachnikov, I. L.; Koldunov, A. V.; Kuibin, P. A. (2017). On the vertical velocity component in the mesoscale Lofoten vortex of the Norwegian Sea, Izvestiya, Atmospheric and Oceanic Physics, 6 (53), 641-649, 10.1134/S0001433817060032. Title: On the vertical speed component in the mesoscale Lofoten whirlpool of the norwegian Sea Type: Journal article Publication: Izvestiya, Atmospheric and Oceanic Physics Author(s): Belonenko, T. V. ; Bashmachnikov, I. L. ; Koldunov, A. V. ; Kuibin, P. A. Year: 2017 Formatted Citation: Belonenko, T. V., I. L. Bashmachnikov, A. V. Koldunov, and P. A. Kuibin, 2017 : On the erect speed component in the mesoscale Lofoten whirlpool of the norwegian Sea. Izvestiya, Atmospheric and Oceanic Physics, 53 ( 6 ), 641-649, doi:10.1134/S0001433817060032 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://link.springer.com/10.1134/S0001433817060032 Other URLs:
Cougnon, E. A.; Galton-Fenzi, B. K.; Rintoul, S. R.; Legrésy, B.; Williams, G. D.; Fraser, A. D.; Hunter, J. R. (2017). Regional Changes in Icescape Impact Shelf Circulation and Basal Melting, Geophysical Research Letters, 22 (44), 11,519-11,527, 10.1002/2017GL074943. Title: Regional Changes in Icescape Impact Shelf Circulation and Basal Melting Type: Journal article Publication: Geophysical Research Letters Author(s): Cougnon, E. A. ; Galton-Fenzi, B. K. ; Rintoul, S. R. ; Legrésy, B. ; Williams, G. D. ; Fraser, A. D. ; Hunter, J. R. Year: 2017 Formatted Citation: Cougnon, E. A., B. K. Galton-Fenzi, S. R. Rintoul, B. Legrésy, G. D. Williams, A. D. Fraser, and J. R. Hunter, 2017 : regional Changes in Icescape Impact Shelf Circulation and Basal Melting. Geophys. Res. Lett., 44 ( 22 ), 11,519-11,527, doi:10.1002/2017GL074943 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2017GL074943 Other URLs:
Verdy, A; Mazloff, M R (2017). A data assimilating model for estimating Southern Ocean biogeochemistry, Journal of Geophysical Research: Oceans, 9 (122), 6968-6988, 10.1002/2016JC012650. Title: A data assimilate mannequin for estimating southern Ocean biogeochemistry Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Verdy, A ; Mazloff, M R Year: 2017 Formatted Citation: Verdy, A., and M. R. Mazloff, 2017 : A data assimilate model for estimating southerly Ocean biogeochemistry. J. Geophys. Res. Ocean., 122 ( 9 ), 6968-6988, doi:10.1002/2016JC012650 Abstract: A Biogeochemical Southern Ocean State Estimate ( B-SOSE ) is introduced that includes carbon and oxygen fields a well as nutrient cycles. The country estimate is constrained with observations while maintaining close budgets and obeying dynamic and thermodynamic balances. Observations from profiling floats, shipboard data, afoot measurements, and satellites are used for assimilation. The years 2008-2012 are chosen due to the relative abundance of oxygen observations from Argo floats during this time. The skill of the state estimate at fitting the data is assessed. The agreement is best for fields that are constrained with the most observations, such as coat pCO2 in Drake Passage ( 44 % of the division captured ) and oxygen profiles ( over 60 % of the division captured at 200 and 1000 megabyte ). The validity of adjoint method acting optimization for coupled physical-biogeochemical country appraisal is demonstrated with a serial of gradient check experiments. The method is shown to be mature and ready to synthesize in situ biogeochemical observations as they become more available. Documenting the B-SOSE configuration and diagnosing the strengths and weaknesses of the solution informs usage of this product as both a climate baseline and as a way to test hypotheses. Transport of Intermediate Waters across 32°S supplies meaning amounts of nitrate to the Atlantic Ocean ( 5.57 ± 2.94 Tmol yr−1 ) and indian Ocean ( 5.09 ± 3.06 Tmol yr−1 ), but much less nitrate reaches the Pacific Ocean ( 1.78 ± 1.91 Tmol yr−1 ). Estimates of air-sea carbon paper dioxide fluxes south of 50°S suggest a mean uptake of 0.18 Pg C/yr for the time period analyzed. Keywords: 0414 Biogeochemical cycles, 4260 Ocean data assimilation and reanalysis, 4806 Carbon cycle, Southern Ocean, and model, biogeochemistry, processes, state estimate ECCO Products Used: ECCO-V4 ; SOSEURL: http://dx.doi.org/10.1002/2016JC012650 Other URLs:
Santoso, Agus; Mcphaden, Michael J.; Cai, Wenju (2017). The Defining Characteristics of ENSO Extremes and the Strong 2015/2016 El Niño, Reviews of Geophysics, 4 (55), 1079-1129, 10.1002/2017RG000560. Title: The Defining Characteristics of ENSO Extremes and the Strong 2015/2016 El Niño Type: Journal article Publication: Reviews of Geophysics Author(s): Santoso, Agus ; Mcphaden, Michael J. ; Cai, Wenju Year: 2017 Formatted Citation: Santoso, A., M. J. Mcphaden, and W. Cai, 2017 : The Defining Characteristics of ENSO Extremes and the Strong 2015/2016 El Niño. Reviews of Geophysics, 55 ( 4 ), 1079-1129, doi:10.1002/2017RG000560 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2017RG000560 Other URLs: hypertext transfer protocol : //agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2017RG000560
Ungermann, Mischa; Tremblay, L. Bruno; Martin, Torge; Losch, Martin (2017). Impact of the ice strength formulation on the performance of a sea ice thickness distribution model in the Arctic, Journal of Geophysical Research: Oceans, 3 (122), 2090-2107, 10.1002/2016JC012128. Title: Impact of the ice strength formulation on the performance of a sea frost thickness distribution model in the Arctic Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Ungermann, Mischa ; Tremblay, L. Bruno ; Martin, Torge ; Losch, Martin Year: 2017 Formatted Citation: Ungermann, M., L. B. Tremblay, T. Martin, and M. Losch, 2017 : impact of the ice strength formulation on the performance of a sea ice thickness distribution model in the Arctic. J. Geophys. Res. Ocean., 122 ( 3 ), 2090-2107, doi:10.1002/2016JC012128 Abstract: Keywords: ECCO Products Used: ECCO2 ; GreenFunctions ; SeaIceURL: http://doi.wiley.com/10.1002/2016JC012128 Other URLs:
Savage, Anna C; Arbic, Brian K; Alford, Matthew H; Ansong, Joseph K; Farrar, J Thomas; Menemenlis, Dimitris; O’Rourke, Amanda K; Richman, James G; Shriver, Jay F; Voet, Gunnar; Wallcraft, Alan J; Zamudio, Luis (2017). Spectral decomposition of internal gravity wave sea surface height in global models, J. Geophys. Res. Ocean. (122), 10.1002/2017JC013009. Title: Spectral decomposition of inner gravity wave sea come on altitude in ball-shaped models Type: Journal article Publication: J. Geophys. Res. Ocean. Author(s): Savage, Anna C ; Arbic, Brian K ; Alford, Matthew H ; Ansong, Joseph K ; Farrar, J Thomas ; Menemenlis, Dimitris ; O’Rourke, Amanda K ; Richman, James G ; Shriver, Jay F ; Voet, Gunnar ; Wallcraft, Alan J ; Zamudio, Luis Year: 2017 Formatted Citation: Savage, A. C. and Coauthors, 2017 : spectral decomposition of inner graveness wave sea surface altitude in ball-shaped models. J. Geophys. Res. Ocean., 122, doi:10.1002/2017JC013009 Abstract: Two global ocean models ranging in horizontal resolution from 1/128 to 1/488 are used to study the distance and clock time scales of sea open height ( SSH ) signals associated with inner gravity waves ( IGWs ). Frequency-horizontal wavenumber SSH apparitional densities are computed over seven regions of the universe ocean from two simulations of the HYbrid Coordinate Ocean Model ( HYCOM ) and three simulations of the Massachusetts Institute of Technology general circulation model ( MITgcm ). high wavenumber, high-frequency SSH discrepancy follows the bode IGW linear distribution curves. The realism of high-frequency motions ( > 0:87 cpd ) in the models is tested through comparison of the frequency spectral density of dynamic height discrepancy computed from the highest-resolution runs of each model ( 1/258 HYCOM and 1/488 MITgcm ) with dynamic acme variance frequency spectral density computed from nine in situ profiling instruments. These high-frequency motions are of especial interest because of their contributions to the small-scale SSH unevenness that will be observed on a global scale in the approaching Surface Water and Ocean Topography ( SWOT ) satellite altimetry mission. The variance at supertidal frequencies can be comparable to the tidal and low-frequency discrepancy for high wavenumbers ( distance scales smaller than 50 kilometer ), specially in the higher-resolution simulations. In the highest-resolution simulations, the high-frequency discrepancy can be greater than the low-frequency discrepancy at these scales. Keywords: ECCO Products Used: LLC_hiresURL: http://doi.wiley.com/10.1002/2017JC013009 Other URLs:
Timmermans, Mary-Louise; Marshall, John; Proshutinsky, Andrey; Scott, Jeffery (2017). Seasonally derived components of the Canada Basin halocline, Geophysical Research Letters, 10 (44), 5008-5015, 10.1002/2017GL073042. Title: seasonally derived components of the Canada Basin halocline Type: Journal article Publication: Geophysical Research Letters Author(s): Timmermans, Mary-Louise ; Marshall, John ; Proshutinsky, Andrey ; Scott, Jeffery Year: 2017 Formatted Citation: Timmermans, M., J. Marshall, A. Proshutinsky, and J. Scott, 2017 : seasonally derived components of the Canada Basin halocline. Geophys. Res. Lett., 44 ( 10 ), 5008-5015, doi:10.1002/2017GL073042 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2017GL073042 Other URLs:
Masuda, Shuhei (2017). Improved ocean state estimation by controlling ocean-mixing: toward synthesis of ocean-mixing observations, Oceanography in Japan, 5 (26), 209xxxXXX#8722;215. Title: Improved ocean department of state estimate by controlling ocean-mixing : toward synthesis of ocean-mixing observations Type: Journal article Publication: Oceanography in Japan Author(s): Masuda, Shuhei Year: 2017 Formatted Citation: Masuda, S., 2017 : Improved ocean state estimate by controlling ocean-mixing : toward synthesis of ocean-mixing observations. oceanography in Japan, 26 ( 5 ), 209−215, hypertext transfer protocol : //kaiyo-gakkai.jp/jos/uminokenkyu/vol26/26-5/26-5-masuda.pdf Abstract: Ocean-mixing plays an essential character in ocean currents, particularly meridional overturn- ing. In junction with increase observations, there has been a stress on synthesis of ocean- blend data. This newspaper discusses current ocean state of matter appraisal and potential deduction of ocean-mixing observations. Keywords: data assimilation, ocean circulation, vertical blend ECCO Products Used: GECCOURL: http://kaiyo-gakkai.jp/jos/uminokenkyu/vol26/26-5/26-5-masuda.pdf Other URLs:
Dushaw, Brian D. (2017). Acoustic tomography as a component the Atlantic Ocean Observing System: Opportunities and Challenges, 8th EuroGOOS Conference, October, 5. Title: Acoustic imaging as a part the Atlantic Ocean Observing System : Opportunities and Challenges Type: Conference Proceedings Publication: 8th EuroGOOS Conference Author(s): Dushaw, Brian D. Year: 2017 Formatted Citation: Dushaw, B. D., 2017 : acoustic imaging as a part the Atlantic Ocean Observing System : Opportunities and Challenges. 8th EuroGOOS Conference Nansen Environmental and Remote Sensing Center, Bergen, Norway ( October ), 5 pp. hypertext transfer protocol : //staff.washington.edu/dushaw/epubs/Dushaw_Tomography_8thEuroGOOSConference_2017.pdf. Abstract: Ocean acoustic imaging is a unique measurement of large-scale ocean variability. The travel times of acoustic signals measure large-scale temperature, barotropic current, and, with an range of transceivers, relative vorticity. Applications include measurements of currents in shallow harbors, basin- and global-scale temperature, and deep-water formation events at high latitudes. acoustic observations in ice-covered regions are compelling. All such systems provide for subaqueous GPS. The common perception that the Argo float arrangement obviates the need for acoustic imaging is an error. While tomographic systems as components of regional or global-scale Ocean Observing Systems represent real number opportunities for modern insights into long-run ocean variability, the hardheaded implementations of free burning acoustic systems are challenging. such challenges are programmatic or cultural, preferably than scientific, however. Given the extraordinary climatological changes soon occurring, it is imperative mood that all available experimental capabilities be thoroughly considered. Studies employing numerical ocean models are required to design optimum observing strategies that exploit the complemental nature of different measurements. Observing Systems require practical techniques to implement data assimilation with the tomographic measurements. Programmatic technical capability and work force to sustain acoustic measurements is lacking. successful execution of tomographic systems will require a stronger symbiotic relation between acousticians and oceanographers. Keywords: basin-scale acoustics, integrated temperature measurement, long-range acoustic propagation, ocean acoustic imaging, physical oceanography, submerged GPS ECCO Products Used: ECCO2URL: http://staff.washington.edu/dushaw/epubs/Dushaw_Tomography_8thEuroGOOSConference_2017.pdf Other URLs:
Naughten, Kaitlin A.; Galton-Fenzi, Benjamin K.; Meissner, Katrin J.; England, Matthew H.; Brassington, Gary B.; Colberg, Frank; Hattermann, Tore; Debernard, Jens B. (2017). Spurious sea ice formation caused by oscillatory ocean tracer advection schemes, Ocean Modelling (116), 108-117, 10.1016/j.ocemod.2017.06.010. Title: bastardly sea frosting formation caused by oscillatory ocean tracer advection schemes Type: Journal article Publication: Ocean Modelling Author(s): Naughten, Kaitlin A. ; Galton-Fenzi, Benjamin K. ; Meissner, Katrin J. ; England, Matthew H. ; Brassington, Gary B. ; Colberg, Frank ; Hattermann, Tore ; Debernard, Jens B. Year: 2017 Formatted Citation: Naughten, K. A., B. K. Galton-Fenzi, K. J. Meissner, M. H. England, G. B. Brassington, F. Colberg, T. Hattermann, and J. B. Debernard, 2017 : inauthentic ocean frost geological formation caused by oscillatory ocean tracer advection schemes. Ocean Modelling, 116, 108-117, doi:10.1016/j.ocemod.2017.06.010 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://linkinghub.elsevier.com/retrieve/pii/S1463500317300999 Other URLs:
Liu, Chengyan; Wang, Zhaomin; Li, Bingrui; Cheng, Chen; Xia, Ruibin (2017). On the response of subduction in the South Pacific to an intensification of westerlies and heat flux in an eddy permitting ocean model, Advances in Atmospheric Sciences, 4 (34), 521-531, 10.1007/s00376-016-6021-2. Title: On the response of subduction in the South Pacific to an intensification of westerlies and heat liquefy in an eddy permitting ocean model Type: Journal article Publication: Advances in Atmospheric Sciences Author(s): Liu, Chengyan ; Wang, Zhaomin ; Li, Bingrui ; Cheng, Chen ; Xia, Ruibin Year: 2017 Formatted Citation: Liu, C., Z. Wang, B. Li, C. Cheng, and R. Xia, 2017 : On the response of subduction in the South Pacific to an intensification of westerlies and inflame liquefy in an eddy permitting ocean mannequin. Advances in Atmospheric Sciences, 34 ( 4 ), 521-531, doi:10.1007/s00376-016-6021-2 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://link.springer.com/10.1007/s00376-016-6021-2 Other URLs:
Liu, Junjie; Bowman, Kevin W.; Schimel, David S.; Parazoo, Nicolas C.; Jiang, Zhe; Lee, Meemong; Bloom, A. Anthony; Wunch, Debra; Frankenberg, Christian; Sun, Ying; O’Dell, Christopher W.; Gurney, Kevin R.; Menemenlis, Dimitris; Gierach, Michelle; Crisp, David; Eldering, Annmarie (2017). Contrasting carbon cycle responses of the tropical continents to the 2015-2016 El Niño, Science, 6360 (358), eaam5690, 10.1126/science.aam5690. Title: Contrasting carbon cycle responses of the tropical continents to the 2015-2016 El Niño Type: Journal article Publication: skill Author(s): Liu, Junjie ; Bowman, Kevin W. ; Schimel, David S. ; Parazoo, Nicolas C. ; Jiang, Zhe ; Lee, Meemong ; Bloom, A. Anthony ; Wunch, Debra ; Frankenberg, Christian ; Sun, Ying ; O’Dell, Christopher W. ; Gurney, Kevin R. ; Menemenlis, Dimitris ; Gierach, Michelle ; Crisp, David ; Eldering, Annmarie Year: 2017 Formatted Citation: Liu, J. and Coauthors, 2017 : Contrasting carbon paper motorbike responses of the tropical continents to the 2015-2016 El Niño. Science, 358 ( 6360 ), eaam5690, doi:10.1126/science.aam5690 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://www.sciencemag.org/lookup/doi/10.1126/science.aam5690 Other URLs: hypertext transfer protocol : //science.sciencemag.org/content/358/6360/eaam5690
Craig, Philip M.; Ferreira, David; Methven, John (2017). The contrast between Atlantic and Pacific surface water fluxes, Tellus A: Dynamic Meteorology and Oceanography, 1 (69), 1330454, 10.1080/16000870.2017.1330454. Title: The contrast between Atlantic and Pacific surface water system fluxes Type: Journal article Publication: Tellus A : Dynamic Meteorology and Oceanography Author(s): Craig, Philip M. ; Ferreira, David ; Methven, John Year: 2017 Formatted Citation: Craig, P. M., D. Ferreira, and J. Methven, 2017 : The contrast between Atlantic and Pacific surface water fluxes. Tellus A : Dynamic Meteorology and Oceanography, 69 ( 1 ), 1330454, doi:10.1080/16000870.2017.1330454 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://www.tandfonline.com/doi/full/10.1080/16000870.2017.1330454 Other URLs:
Storto, Andrea; Masina, Simona; Balmaseda, Magdalena; Guinehut, Stéphanie; Xue, Yan; Szekely, Tanguy; Fukumori, Ichiro; Forget, Gael; Chang, You-Soon; Good, Simon A; Köhl, Armin; Vernieres, Guillaume; Ferry, Nicolas; Peterson, K Andrew; Behringer, David; Ishii, Masayoshi; Masuda, Shuhei; Fujii, Yosuke; Toyoda, Takahiro; Yin, Yonghong; Valdivieso, Maria; Barnier, Bernard; Boyer, Tim; Lee, Tony; Gourrion, Jérome; Wang, Ou; Heimbach, Patrick; Rosati, Anthony; Kovach, Robin; Hernandez, Fabrice; Martin, Matthew J; Kamachi, Masafumi; Kuragano, Tsurane; Mogensen, Kristian; Alves, Oscar; Haines, Keith; Wang, Xiaochun (2017). Steric sea level variability (1993-2010) in an ensemble of ocean reanalyses and objective analyses, Climate Dynamics, 3 (49), 709-729, 10.1007/s00382-015-2554-9. Title: Steric sea level variability ( 1993-2010 ) in an ensemble of ocean reanalyses and objective analyses Type: Journal article Publication: Climate Dynamics Author(s): Storto, Andrea ; Masina, Simona ; Balmaseda, Magdalena ; Guinehut, Stéphanie ; Xue, Yan ; Szekely, Tanguy ; Fukumori, Ichiro ; Forget, Gael ; Chang, You-Soon ; Good, Simon A ; Köhl, Armin ; Vernieres, Guillaume ; Ferry, Nicolas ; Peterson, K Andrew ; Behringer, David ; Ishii, Masayoshi ; Masuda, Shuhei ; Fujii, Yosuke ; Toyoda, Takahiro ; Yin, Yonghong ; Valdivieso, Maria ; Barnier, Bernard ; Boyer, Tim ; Lee, Tony ; Gourrion, Jérome ; Wang, Ou ; Heimbach, Patrick ; Rosati, Anthony ; Kovach, Robin ; Hernandez, Fabrice ; Martin, Matthew J ; Kamachi, Masafumi ; Kuragano, Tsurane ; Mogensen, Kristian ; Alves, Oscar ; Haines, Keith ; Wang, Xiaochun Year: 2017 Formatted Citation: Storto, A. and Coauthors, 2017 : Steric sea degree unevenness ( 1993-2010 ) in an ensemble of ocean reanalyses and objective analyses. Climate Dynamics, 49 ( 3 ), 709-729, doi:10.1007/s00382-015-2554-9 Abstract: Quantifying the effect of the seawater concentration changes on sea degree unevenness is of all-important importance for climate change studies, as the sea grade accumulative heighten can be regarded as both an significant climate deepen index and a possible danger for homo activities in coastal areas. In this work, as depart of the Ocean Reanalysis Intercomparison Project, the global and regional steric sea tied changes are estimated and compared from an ensemble of 16 ocean reanalyses and 4 objective analyses. These estimates are initially compared with a satellite-derived ( altimetry minus hydrometry ) dataset for a shortstop period ( 2003-2010 ). The ensemble mean exhibits a significant high correlation at both global and regional scale, and the ensemble of ocean reanalyses outperforms that of objective analyses, in finical in the southern Ocean. The reanalysis ensemble bastardly frankincense represents a valuable creature for far analyses, although big uncertainties remain for the inter-annual trends. Within the extend intercomparison period that spans the altimetry earned run average ( 1993-2010 ), we find that the corps de ballet of reanalyses and aim analyses are in good agreement, and both detect a swerve of the ball-shaped steric sea charge of 1.0 and 1.1 ± 0.05 mm/year, respectively. however, the spread among the products of the halosteric component course exceeds the mean tendency itself, questioning the dependability of its estimate. This is related to the scarcity of salt observations before the Argo era. furthermore, the impingement of deep ocean layers is non-negligible on the steric sea degree unevenness ( 22 and 12 % for the layers below 700 and 1500 megabyte of depth, respectively ), although the little thick ocean trends are not significant with respect to the products spread. Keywords: ECCO Products Used: ECCO-KFS ; ECCO-V4 ; GECCO2URL: https://doi.org/10.1007/s00382-015-2554-9 Other URLs:
Wu, Quran; Zhang, Xuebin; Church, John A.; Hu, Jianyu (2017). Variability and change of sea level and its components in the Indo-Pacific region during the altimetry era, Journal of Geophysical Research: Oceans, 3 (122), 1862-1881, 10.1002/2016JC012345. Title: Variability and change of ocean level and its components in the Indo-Pacific area during the altimetry earned run average Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Wu, Quran ; Zhang, Xuebin ; Church, John A. ; Hu, Jianyu Year: 2017 Formatted Citation: Wu, Q., X. Zhang, J. A. church, and J. Hu, 2017 : variability and variety of sea level and its components in the Indo-Pacific region during the altimetry era. J. Geophys. Res. Ocean., 122 ( 3 ), 1862-1881, doi:10.1002/2016JC012345 Abstract: previous studies have shown that regional sea level exhibits interannual and decadal variations associated with the modes of climate unevenness. A better understand of those low-frequency ocean level variations benefits the detection and attribution of climate change signals. however, the contributions of thermosteric, halosteric, and mass sea level components to sea charge unevenness and drift patterns remain indecipherable. By focusing on signals associated with prevailing climate modes in the Indo-Pacific region, we estimate the interannual and decadal fingerprints and course of each sea level component utilizing a multivariate linear regression of two adjoint-based ocean reanalyses. Sea level interannual, decadal, and tendency patterns chiefly come from thermosteric sea level ( TSSL ). Halosteric ocean level ( HSSL ) is of regional importance in the Pacific Ocean on decadal time scale and dominates sea horizontal surface trends in the northeastern subtropical Pacific. The compensation between TSSL and HSSL is identified in their decadal variability and trends. The interannual and decadal variability of temperature by and large peak at subsurface around 100 m but that of salt tend to be surface-intensified. Decadal temperature and brininess signals extend deeper into the ocean in some regions than their interannual equivalents. Mass sea charge ( MassSL ) is critical for the interannual and decadal variability of sea horizontal surface over ledge seas. Inconsistencies exist in MassSL course patterns among respective estimates. This report highlights regions where multiple processes work together to control ocean level variability and deepen. promote exercise is required to better understand the interaction of different processes in those regions. Keywords: 1641 Sea horizontal surface change, 4513 Decadal ocean variability, 4522 ENSO, 4556 Sea degree : variations and mean, interannual and decadal unevenness, linear swerve, mass-induced sea level, sea level, steric sea flat ECCO Products Used: ECCO-V4URL: http://dx.doi.org/10.1002/2016JC012345 Other URLs: hypertext transfer protocol : //doi.wiley.com/10.1002/2016JC012345
Vinogradova, Nadya T.; Ponte, Rui M. (2017). In Search of Fingerprints of the Recent Intensification of the Ocean Water Cycle, Journal of Climate, 14 (30), 5513-5528, 10.1175/JCLI-D-16-0626.1. Title: In Search of Fingerprints of the Recent Intensification of the Ocean Water Cycle Type: Journal article Publication: Journal of Climate Author(s): Vinogradova, Nadya T. ; Ponte, Rui M. Year: 2017 Formatted Citation: Vinogradova, N. T., and R. M. Ponte, 2017 : In Search of Fingerprints of the Recent Intensification of the Ocean Water Cycle. J. Clim., 30 ( 14 ), 5513-5528, doi:10.1175/JCLI-D-16-0626.1 Abstract: Unprecedented changes in Earth ‘s water budget and a holocene smash in salt observations prompted the use of long-run salt trends to fingerprint the total of fresh water entering and leaving the oceans ( the ocean water cycle ). here changes in the ocean water system cycle in the past two decades are examined to evaluate whether the rain-gauge notion can be extended to shorter time scales. Using a novel framework it is demonstrated that there have been haunting changes ( defined as significant trends ) in both salt and the ocean water cycle in many ocean regions, including the subtropical gyres in both hemispheres, low latitudes of the tropical Pacific, the North Atlantic Subpolar Gyre, and the Arctic Ocean. On average, the ocean urine cycle has amplified by approximately 5 % since 1993, but strong regional variations exist ( ampere well as colony on the surface fresh water flux products chosen ). Despite an intensify ocean water bicycle in the last two decades, changes in come on brininess do not follow expected patterns of magnify salt contrasts, challenging the percept that if it rains more the sea always get fresh and if it evaporates more the sea constantly get saltier. These findings imply a time of emergence of anthropogenetic hydrological signals shorter in surface fresh water fluxes than in surface brininess and point to the importance of ocean circulation, salt transports, and natural climate unevenness in shaping patterns of decadal switch in surface brininess. therefore, the function of salt measurements in conjunction with ocean salt fluxes can provide a more meaningful room of fingerprinting changes in the ball-shaped urine cycle on decadal time scales. Keywords: ECCO Products Used: ECCO-V4URL: https://doi.org/10.1175/JCLI-D-16-0626.1 Other URLs: hypertext transfer protocol : //journals.ametsoc.org/doi/10.1175/JCLI-D-16-0626.1
Wilson, Nat; Straneo, Fiammetta; Heimbach, Patrick (2017). Satellite-derived submarine melt rates and mass balance (2011-2015) for Greenland’s largest remaining ice tongues, The Cryosphere, 6 (11), 2773-2782, 10.5194/tc-11-2773-2017. Title: Satellite-derived submarine dissolve rates and mass libra ( 2011-2015 ) for Greenland ’ south largest remaining ice tongues Type: Journal article Publication: The Cryosphere Author(s): Wilson, Nat ; Straneo, Fiammetta ; Heimbach, Patrick Year: 2017 Formatted Citation: Wilson, N., F. Straneo, and P. Heimbach, 2017 : Satellite-derived submarine fade rates and mass balance ( 2011-2015 ) for Greenland ‘s largest remaining ice tongues. Cryosph., 11 ( 6 ), 2773-2782, doi:10.5194/tc-11-2773-2017 Abstract: Ice-shelf-like floating extensions at the terminus of Greenland glaciers are undergoing rapid changes with po- tential implications for the constancy of upriver glaciers and the methamphetamine sheet as a whole. While submarine liquescent is recog- nized as a major subscriber to mass personnel casualty, the spatial distri- bution of bomber dissolve and its contribution to the to- tal mass balance of these floating extensions is incompletely known and understand. here, we use high-resolution World- View satellite imagination collected between 2011 and 2015 to infer the order of magnitude and spatial variability of melt rates un- five hundred Greenland ‘s largest remaining ice tongues – Nioghalvf- jerdsbræ ( 79 North Glacier, 79N ), Ryder Glacier ( RG ), and Petermann Glacier ( PG ). Submarine mellow rates under the ice tongues vary well, exceeding 50ma−1 near the grounding zone and decaying quickly downriver. Channels, likely originating from upstream subglacial channels, give arise to large fade variations across the ice tongues. We com- pare the entire melt rates to the inflow of ice to the ice rink tongue to assess their contribution to the current mass libra. At Petermann Glacier and Ryder Glacier, we find that the com- bined submarine and aerial melt approximately balances the ice flux from the anchor internal-combustion engine plane. At Nioghalvfjerdsbræ the entire fade magnetic field ( 14.2 ± 0.96 km3 a−1 w.e., water equiva- lend ) exceeds the inflow of methamphetamine ( 10.2 ± 0.59 km3 a−1 w.e. ), in- dicating present cutting of the ice rink tongue. Keywords: ECCO Products Used: URL: https://www.the-cryosphere.net/11/2773/2017/ Other URLs:
Dushaw, Brian D.; Colosi, John; Duda, Timothy; Dzieciuch, Matthew; Howe, Bruce; Kaneko, Arata; Sagen, Hanne; Skarsoulis, Emmanuel; Zhu, Xiaohua (2017). Ocean Acoustic Tomography : a Missing Element of the Ocean Observing System, Proceedings Underwater Acoustics Conference and Exhibition, 12. Title: Ocean Acoustic Tomography : a Missing component of the Ocean Observing System Type: Conference Proceedings Publication: Proceedings Underwater Acoustics Conference and Exhibition Author(s): Dushaw, Brian D. ; Colosi, John ; Duda, Timothy ; Dzieciuch, Matthew ; Howe, Bruce ; Kaneko, Arata ; Sagen, Hanne ; Skarsoulis, Emmanuel ; Zhu, Xiaohua Year: 2017 Formatted Citation: Dushaw, B. D. and Coauthors, 2017 : Ocean Acoustic Tomography : a Missing component of the Ocean Observing System. Proceedings Underwater Acoustics Conference and Exhibition, 12 pp. hypertext transfer protocol : //staff.washington.edu/dushaw/epubs/Dushaw_Tomography_UACE2017.pdf. Abstract: Ocean acoustic imaging immediately has a farseeing history with many observations and experiments that highlight the unique capabilities of this border on to detecting and sympathy ocean unevenness. Examples include observations of thick mix in the Greenland Sea, mode-1 internal tides radiating far into the ocean inside ( coherent in clock time and space ), relative vorticity on multiple scales, basin-wide and antipodal measures of temperature, barotropic currents, coastal processes in shallow urine, and Arctic climate change. Despite the capabilities, imaging, and its simplified form thermometry, are not yet congress of racial equality observations within the Ocean Observing Systems ( OOS ). These observing systems could benefit greatly from applied acoustic oceanography, and both the world ‘s climatic circumstance and the trouble in ocean observation argue that all available techniques should be implemented. A perception that the being of the Argo float arrangement obviates the need for the acoustic observations has been shown to be false ; observations of ocean unevenness by imaging are distinct from those of floats or gliders. The growing application of acoustic measurements as part of the observe organization ( e.g., IQOE orunderwater GPS systems ) make imaging a natural part of OOSes. The developing INTAROS system is demonstrating the integration of divers observations, including passive and active agent acoustic applications, into a coherent, functional system – part of the Arctic Ocean Observing System. Within the Framework for Ocean Observing ( FOO ), we reiterate the recommendation of the OceanObs’99 league and advocate a imaging system in the western North Atlantic as an initial contribution. Such a system would provide unique measurements of large-scale temperature, barotropic currents, vorticity, fluxes, and abysmal unevenness, while providing tracking capabilities for thick floats and gliders. This initial design, and the hold system that would evolve from it, would result in a more complete fit-for-purpose overall observe arrangement for all-important ocean variables ( EOVs ) and derive quantities. Keywords: basin-scale acoustics, integrated temperature measurement, long-range acoustic propagation, ocean acoustic imaging, physcial oceanography, submerged GPS ECCO Products Used: ECCO2URL: http://staff.washington.edu/dushaw/epubs/Dushaw_Tomography_UACE2017.pdf Other URLs:
Rosso, Isabella; Mazloff, Matthew R; Verdy, Ariane; Talley, Lynne D (2017). Space and time variability of the Southern Ocean carbon budget, Journal of Geophysical Research: Oceans, 9 (122), 7407-7432, 10.1002/2016JC012646. Title: Space and time unevenness of the Southern Ocean carbon budget Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Rosso, Isabella ; Mazloff, Matthew R ; Verdy, Ariane ; Talley, Lynne D Year: 2017 Formatted Citation: Rosso, I., M. R. Mazloff, A. Verdy, and L. D. Talley, 2017 : space and time variability of the Southern Ocean carbon budget. J. Geophys. Res. Ocean., 122 ( 9 ), 7407-7432, doi:10.1002/2016JC012646 Abstract: The amphetamine ocean dissolved inorganic carbon paper ( DIC ) concentration is regulated by advective and diffusing transportation deviation, biological processes, fresh water, and air-sea CO2 fluxes. The proportional importance of these mechanisms in the southern Ocean is uncertain, as year-round observations in this area have been limited. We use a novel physical-biogeochemical state estimate of the Southern Ocean to construct a close DIC budget of the top 650 molarity and investigate the spatial and temporal unevenness of the different components of the carbon paper system. The dominant allele mechanism of unevenness in upper ocean DIC depend on localization and time and space scales considered. advective transport is the most influential mechanism and governs the local anesthetic DIC budget across the 10 day-5 year timescales analyzed. diffusing effects are closely negligible. The large-scale transportation structure is primarily set by upwelling and downwelling, though both the lateral pass ageostrophic and geostrophic transports are significant. In the Antarctic Circumpolar Current, the carbon paper budget components are besides influenced by the presence of topography and biological hot spots. In the subtropics, vaporization and air-sea CO2 flux chiefly balances the sink due to biological production and advective tape drive. ultimately, in the subpolar region ocean frost processes, which change the seawater volume and therefore the DIC concentration, compensate the large affect of the advective transmit and modulate the timing of biological bodily process and air-sea CO2 flux. Keywords: 4207 Arctic and Antarctic oceanography, 4255 Numerical modeling, 4805 Biogeochemical cycles, 4806 Carbon cycle, Southern Ocean, and model, carbon budget, processes, express estimate ECCO Products Used: ECCO-V4 ; SOSEURL: http://dx.doi.org/10.1002/2016JC012646 Other URLs:
Verdy, Ariane; Cornuelle, Bruce; Mazloff, Matthew R.; Rudnick, Daniel L. (2017). Estimation of the Tropical Pacific Ocean State 2010-13, Journal of Atmospheric and Oceanic Technology, 7 (34), 1501-1517, 10.1175/JTECH-D-16-0223.1. Title: Estimation of the Tropical Pacific Ocean State 2010-13 Type: Journal article Publication: Journal of Atmospheric and Oceanic Technology Author(s): Verdy, Ariane ; Cornuelle, Bruce ; Mazloff, Matthew R. ; Rudnick, Daniel L. Year: 2017 Formatted Citation: Verdy, A., B. Cornuelle, M. R. Mazloff, and D. L. Rudnick, 2017 : estimate of the Tropical Pacific Ocean State 2010-13. Journal of Atmospheric and Oceanic Technology, 34 ( 7 ), 1501-1517, doi:10.1175/JTECH-D-16-0223.1 Abstract: Keywords: ECCO Products Used: SOSEURL: http://journals.ametsoc.org/doi/10.1175/JTECH-D-16-0223.1 Other URLs:
Villas Bôas, Ana B; Gille, Sarah T; Mazloff, Matthew R; Cornuelle, Bruce D (2017). Characterization of the Deep-Water Surface Wave Variability in the California Current Region, Journal of Geophysical Research: Oceans, 10.1002/2017JC013280. Title: Characterization of the Deep-Water Surface Wave Variability in the California Current region Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Villas Bôas, Ana B ; Gille, Sarah T ; Mazloff, Matthew R ; Cornuelle, Bruce D Year: 2017 Formatted Citation: Villas Bôas, A. B., S. T. Gille, M. R. Mazloff, and B. D. Cornuelle, 2017 : characterization of the Deep-Water Surface Wave Variability in the California Current Region. J. Geophys. Res. Ocean., doi:10.1002/2017JC013280 Abstract: n/a Keywords: Remote sense and electromagnetic processes, SWOT, Surface waves and tides, air/sea interactions, california current, expansion fan winds, satellite altimetry, open waves ECCO Products Used: SOSEURL: http://dx.doi.org/10.1002/2017JC013280 Other URLs:
Nakayama, Yoshihiro; Menemenlis, Dimitris; Schodlok, Michael P; Rignot, Eric J (2017). Amundsen and Bellingshausen Seas simulation with optimized ocean, sea ice, and thermodynamic ice shelf model parameters, J. Geophys. Res. Ocean., 1-16, 10.1002/2016JC012538. Title: Amundsen and Bellingshausen Seas model with optimize ocean, sea frost, and thermodynamic ice ledge model parameters Type: Journal article Publication: J. Geophys. Res. Ocean. Author(s): Nakayama, Yoshihiro ; Menemenlis, Dimitris ; Schodlok, Michael P ; Rignot, Eric J Year: 2017 Formatted Citation: Nakayama, Y., D. Menemenlis, M. P. Schodlok, and E. J. Rignot, 2017 : Amundsen and Bellingshausen Seas simulation with optimize ocean, sea ice, and thermodynamic ice shelf model parameters. J. Geophys. Res. Ocean., 1-16, doi:10.1002/2016JC012538 Abstract: Keywords: Amundsen Sea, Bellingshausen Sea, Glacial melt water, Pine Island Glacier, Thermocline, Winter water system ECCO Products Used: IceSheet ; LLC270 URL: Other URLs:
Harrison, Daniel P.; Hinton, Michael G.; Kohin, Suzanne; Armstrong, Edward M.; Snyder, Stephanie; O’Brien, Frank; Kiefer, Dale K. (2017). The pelagic habitat analysis module for ecosystem-based fisheries science and management, Fisheries Oceanography, 3 (26), 316-335, 10.1111/fog.12194. Title: The oceanic habitat analysis module for ecosystem-based fisheries skill and management Type: Journal article Publication: Fisheries Oceanography Author(s): Harrison, Daniel P. ; Hinton, Michael G. ; Kohin, Suzanne ; Armstrong, Edward M. ; Snyder, Stephanie ; O’Brien, Frank ; Kiefer, Dale K. Year: 2017 Formatted Citation: Harrison, D. P., M. G. Hinton, S. Kohin, E. M. Armstrong, S. Snyder, F. O’Brien, and D. K. Kiefer, 2017 : The oceanic habitat analysis module for ecosystem-based fisheries science and management. Fisheries Oceanography, 26 ( 3 ), 316-335, doi:10.1111/fog.12194 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1111/fog.12194 Other URLs:
Davis, James; Vinogradova, Nadya (2017). Causes of accelerating sea level on the East Coast of North America, Geophysical Research Letters (44), 10.1002/2017GL072845. Title: Causes of accelerating sea level on the East Coast of North America Type: Journal article Publication: Geophysical Research Letters Author(s): Davis, James ; Vinogradova, Nadya Year: 2017 Formatted Citation: Davis, J., and N. Vinogradova, 2017 : Causes of accelerating sea tied on the East Coast of North America. Geophys. Res. Lett., 44, doi:10.1002/2017GL072845 Abstract: The tide-gauge record from the north american East Coast reveals significant accelerations in sea level starting in the late twentieth century. The estimate post-1990 accelerations range from near zero to ∼0.3 millimeter yr-2. We find that the observe sea level acceleration is well modeled using several processes : mass change in Greenland and Antarctica as measured by the Gravity Recovery and Climate Experiment satellites ; ocean dynamic and steric variability provided by the GECCO2 ocean synthesis ; and the anatropous barometer effect. however, to achieve this equip requires estimate of an entree for the dynamic and steric contribution, possibly due to the coarse resolution of this analysis or to simplifications associated with parameterization of bottom friction in the shallow coastal areas. The acceleration from ice passing alone is equivalent to a regional ocean level heighten in one hundred of 0.2 m in the north and 0.75 megabyte in the south of this region. Keywords: ECCO Products Used: GECCO2URL: https://doi.org/10.1002/2017GL072845 Other URLs:
Gregor, Luke; Kok, Schalk; Monteiro, Pedro M. S. (2017). Empirical methods for the estimation of Southern Ocean CO2: support vector and random forest regression, Biogeosciences, 23 (14), 5551-5569, 10.5194/bg-14-5551-2017. Title: Empirical methods for the estimate of Southern Ocean CO2 : support vector and random forest regression Type: Journal article Publication: Biogeosciences Author(s): Gregor, Luke ; Kok, Schalk ; Monteiro, Pedro M. S. Year: 2017 Formatted Citation: Gregor, L., S. Kok, and P. M. S. Monteiro, 2017 : empiric methods for the estimate of Southern Ocean CO2 : support vector and random forest regression. Biogeosciences, 14 ( 23 ), 5551-5569, doi:10.5194/bg-14-5551-2017 Abstract: The Southern Ocean accounts for 40 % of oceanic CO2 uptake, but the estimates are bound by big uncertainties due to a dearth in observations. Gap-filling empirical methods have been used to good effect to approximate pCO2 from satellite discernible variables in other parts of the ocean, but many of these methods are not in agreement in the southern Ocean. In this study we propose two extra methods that perform well in the southern ocean : support vector regression ( SVR ) and random forest regression ( RFR ). The methods are used to estimate ΔpCO2 in the Southern Ocean based on SOCAT v3, achieving like trends to the SOM-FFN method acting by Landschützer et alabama. ( 2014 ). Results show that the SOM-FFN and RFR approaches have RMSEs of exchangeable magnitude ( 14.84 and 16.45µatm, where 1atm = 101325Pa ) where the SVR method has a larger RMSE ( 24.40µatm ). however, the larger errors for SVR and RFR are, in part, ascribable to an increase in coastal observations from SOCAT v2 to v3, where the SOM-FFN method used v2 data. The success of both SOM-FFN and RFR depends on the ability to adapt to different modes of unevenness. The SOM-FFN achieves this by having autonomous regression models for each bunch, while this flexibility is intrinsic to the RFR method acting. Analyses of the estimates shows that the SVR and RFR ‘s respective sensitivity and robustness to outliers define the result significantly. promote analyses on the methods were performed by using a man-made dataset to assess the stick to : which method acting ( RFR or SVR ) has the best performance ? What is the effect of using time, latitude and longitude as proxy variables on ΔpCO2 ? What is the impact of the sampling diagonal in the SOCAT v3 dataset on the estimates ? We find that while RFR is indeed better than SVR, the ensemble of the two methods outperforms either one, ascribable to complementary color strengths and weaknesses of the methods. Results besides show that for the RFR and SVR implementations, it is better to include coordinates as proxy variables as RMSE scores are lowered and the phase of the seasonal worker cycle is more accurate. last, we show that there is only a unaccented diagonal due to undersampling. The synthetic data provide a utilitarian framework to test methods in regions of sparse data coverage and show electric potential as a utilitarian tool to evaluate methods in future studies. Keywords: ECCO Products Used: ECCO2URL: https://www.biogeosciences.net/14/5551/2017/ Other URLs:
Chevallier, Matthieu; Smith, Gregory C; Dupont, Frédéric; Lemieux, Jean-François; Forget, Gael; Fujii, Yosuke; Hernandez, Fabrice; Msadek, Rym; Peterson, K Andrew; Storto, Andrea; Toyoda, Takahiro; Valdivieso, Maria; Vernieres, Guillaume; Zuo, Hao; Balmaseda, Magdalena; Chang, You-Soon; Ferry, Nicolas; Garric, Gilles; Haines, Keith; Keeley, Sarah; Kovach, Robin M; Kuragano, Tsurane; Masina, Simona; Tang, Yongming; Tsujino, Hiroyuki; Wang, Xiaochun (2017). Intercomparison of the Arctic sea ice cover in global ocean-sea ice reanalyses from the ORA-IP project, Climate Dynamics, 3 (49), 1107-1136, 10.1007/s00382-016-2985-y. Title: Intercomparison of the Arctic ocean ice traverse in ball-shaped ocean-sea ice rink reanalyses from the ORA-IP project Type: Journal article Publication: Climate Dynamics Author(s): Chevallier, Matthieu ; Smith, Gregory C ; Dupont, Frédéric ; Lemieux, Jean-François ; Forget, Gael ; Fujii, Yosuke ; Hernandez, Fabrice ; Msadek, Rym ; Peterson, K Andrew ; Storto, Andrea ; Toyoda, Takahiro ; Valdivieso, Maria ; Vernieres, Guillaume ; Zuo, Hao ; Balmaseda, Magdalena ; Chang, You-Soon ; Ferry, Nicolas ; Garric, Gilles ; Haines, Keith ; Keeley, Sarah ; Kovach, Robin M ; Kuragano, Tsurane ; Masina, Simona ; Tang, Yongming ; Tsujino, Hiroyuki ; Wang, Xiaochun Year: 2017 Formatted Citation: Chevallier, M. and Coauthors, 2017 : Intercomparison of the Arctic sea ice overlay in global ocean-sea ice reanalyses from the ORA-IP stick out. Climate Dynamics, 49 ( 3 ), 1107-1136, doi:10.1007/s00382-016-2985-y Abstract: Ocean-sea ice reanalyses are all-important for assessing the unevenness and late trends in the Arctic sea frost cover. This is particularly true for ocean ice volume, as long-run and boastfully scale ocean frost thickness observations are inexistent. Results from the Ocean ReAnalyses Intercomparison Project ( ORA-IP ) are presented, with a focus on Arctic ocean ice fields reconstructed by state-of-the-art ball-shaped ocean reanalyses. Differences between the respective reanalyses are explored in terms of the effects of data assimilation, model physics and atmospheric coerce on properties of the sea ice rink cover, including concentration, thickness, speed and snow. Amongst the 14 reanalyses studied here, 9 assimilate sea frost concentration, and none assimilate sea ice thickness data. The comparison reveals an overall agreement in the remodel concentration fields, chiefly because of the constraints in come on temperature imposed by mastermind assimilation of ocean observations, prescribed or assimilated atmospheric force and assimilation of sea ice assiduity. however, some unfold still exists amongst the reanalyses, due to a assortment of factors. In finical, a large spread in sea frost thickness is found within the ensemble of reanalyses, partially caused by the biases inherited from their ocean ice exemplar components. Biases are besides affected by the assimilation of sea ice concentration and the treatment of sea frosting thickness in the data assimilation action. An authoritative result of this study is that the spatial distribution of ice volume varies widely between products, with no reanalysis standing out as clearly superscript as compared to altimetry estimates. The frost thickness from systems without assimilation of ocean frosting concentration is not worse than that from systems constrained with ocean ice observations. An evaluation of the ocean ice rink speed fields reveals that ice drifts besides fast in most systems. As an ensemble, the ORA-IP reanalyses capture trends in Arctic ocean ice area and extent relatively well. however, the corps de ballet can not be used to get a robust appraisal of holocene trends in the Arctic sea ice volume. Biases in the reanalyses surely impact the simulate air-sea fluxes in the polar regions, and questions the suitability of current sea ice reanalyses to initialize seasonal forecasts. Keywords: ECCO Products Used: ECCO-V4URL: https://doi.org/10.1007/s00382-016-2985-y Other URLs:
Bashmachnikov, I.L.; Sokolovskiy, M.A.; Belonenko, T.V.; Volkov, Denis L.; Isachsen, P.E.; Carton, X. (2017). On the vertical structure and stability of the Lofoten vortex in the Norwegian Sea, Deep Sea Research Part I: Oceanographic Research Papers (128), 1-27, 10.1016/j.dsr.2017.08.001. Title: On the vertical structure and stability of the Lofoten whirl in the norwegian Sea Type: Journal article Publication: Deep Sea Research Part I : Oceanographic Research Papers Author(s): Bashmachnikov, I.L. ; Sokolovskiy, M.A. ; Belonenko, T.V. ; Volkov, Denis L. ; Isachsen, P.E. ; Carton, X. Year: 2017 Formatted Citation: Bashmachnikov, I., M. Sokolovskiy, T. Belonenko, D. L. Volkov, P. Isachsen, and X. Carton, 2017 : On the erect structure and constancy of the Lofoten whirl in the norwegian Sea. Deep Sea Research Part I : Oceanographic Research Papers, 128, 1-27, doi:10.1016/j.dsr.2017.08.001 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://linkinghub.elsevier.com/retrieve/pii/S0967063716300243 Other URLs:
Wagner, Till J. W.; Eisenman, Ian (2017). How climate model biases skew the distribution of iceberg meltwater, Geophysical Research Letters, 8 (44), 3691-3699, 10.1002/2016GL071645. Title: How climate model biases skew the distribution of iceberg meltwater Type: Journal article Publication: Geophysical Research Letters Author(s): Wagner, Till J. W. ; Eisenman, Ian Year: 2017 Formatted Citation: Wagner, T. J. W., and I. Eisenman, 2017 : How climate model biases skew the distribution of iceberg meltwater. Geophys. Res. Lett., 44 ( 8 ), 3691-3699, doi:10.1002/2016GL071645 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2016GL071645 Other URLs:
Karspeck, A R; Stammer, D; Köhl, A; Danabasoglu, G; Balmaseda, M; Smith, D M; Fujii, Y; Zhang, S; Giese, B; Tsujino, H; Rosati, A (2017). Comparison of the Atlantic meridional overturning circulation between 1960 and 2007 in six ocean reanalysis products, Climate Dynamics, 3 (49), 957-982, 10.1007/s00382-015-2787-7. Title: Comparison of the Atlantic meridional overturning circulation between 1960 and 2007 in six ocean reanalysis products Type: Journal article Publication: Climate Dynamics Author(s): Karspeck, A R ; Stammer, D ; Köhl, A ; Danabasoglu, G ; Balmaseda, M ; Smith, D M ; Fujii, Y ; Zhang, S ; Giese, B ; Tsujino, H ; Rosati, A Year: 2017 Formatted Citation: Karspeck, A. R. and Coauthors, 2017 : comparison of the Atlantic meridional overturning circulation between 1960 and 2007 in six ocean reanalysis products. Climate Dynamics, 49 ( 3 ), 957-982, doi:10.1007/s00382-015-2787-7 Abstract: The intend and variability of the Atlantic meridional overturning circulation ( AMOC ), as represented in six ocean reanalysis products, are analyzed over the period 1960-2007. especial focus is on multi-decadal trends and interannual unevenness at 26.5°N and 45°N. For four of the six reanalysis products, corresponding mention simulations obtained from the lapp models and forcing datasets but without the imposition of subsurface data constraints are included for comparison. An vehemence is placed on identifying general characteristics of the reanalysis representation of AMOC relative to their citation simulations without subsurface data constraints. The AMOC as simulated in these two sets are presented in the context of results from the Coordinated Ocean-ice Reference Experiments phase II ( CORE-II ) effort, wherein a common interannually varying atmospheric forcing data set was used to force a bombastic and divers set of ball-shaped ocean-ice models. relative to the character simulations and CORE-II forced exemplary simulations it is shown that ( 1 ) the reanalysis products tend to have greater AMOC beggarly potency and enhanced variation and ( 2 ) the reanalysis products are less consistent in their year-to-year AMOC changes. We besides find that relative to the reference simulations ( but not the CORE-II forced model simulations ) the reanalysis products tend to have enhanced multi-decadal trends ( from 1975-1995 to 1995-2007 ) in the mid to high latitudes of the northern hemisphere. Keywords: ECCO Products Used: GECCO2URL: https://doi.org/10.1007/s00382-015-2787-7 Other URLs:
Toyoda, Takahiro; Fujii, Yosuke; Kuragano, Tsurane; Kamachi, Masafumi; Ishikawa, Yoichi; Masuda, Shuhei; Sato, Kanako; Awaji, Toshiyuki; Hernandez, Fabrice; Ferry, Nicolas; Guinehut, Stéphanie; Martin, Matthew J; Peterson, K Andrew; Good, Simon A; Valdivieso, Maria; Haines, Keith; Storto, Andrea; Masina, Simona; Köhl, Armin; Zuo, Hao; Balmaseda, Magdalena; Yin, Yonghong; Shi, Li; Alves, Oscar; Smith, Gregory; Chang, You-Soon; Vernieres, Guillaume; Wang, Xiaochun; Forget, Gael; Heimbach, Patrick; Wang, Ou; Fukumori, Ichiro; Lee, Tong (2017). Intercomparison and validation of the mixed layer depth fields of global ocean syntheses, Climate Dynamics, 3 (49), 753-773, 10.1007/s00382-015-2637-7. Title: Intercomparison and validation of the mix level depth fields of ball-shaped ocean syntheses Type: Journal article Publication: Climate Dynamics Author(s): Toyoda, Takahiro ; Fujii, Yosuke ; Kuragano, Tsurane ; Kamachi, Masafumi ; Ishikawa, Yoichi ; Masuda, Shuhei ; Sato, Kanako ; Awaji, Toshiyuki ; Hernandez, Fabrice ; Ferry, Nicolas ; Guinehut, Stéphanie ; Martin, Matthew J ; Peterson, K Andrew ; Good, Simon A ; Valdivieso, Maria ; Haines, Keith ; Storto, Andrea ; Masina, Simona ; Köhl, Armin ; Zuo, Hao ; Balmaseda, Magdalena ; Yin, Yonghong ; Shi, Li ; Alves, Oscar ; Smith, Gregory ; Chang, You-Soon ; Vernieres, Guillaume ; Wang, Xiaochun ; Forget, Gael ; Heimbach, Patrick ; Wang, Ou ; Fukumori, Ichiro ; Lee, Tong Year: 2017 Formatted Citation: Toyoda, T. and Coauthors, 2017 : Intercomparison and establishment of the assorted level depth fields of global ocean syntheses. Climate Dynamics, 49 ( 3 ), 753-773, doi:10.1007/s00382-015-2637-7 Abstract: Intercomparison and evaluation of the ball-shaped ocean coat blend layer depth ( MLD ) fields estimated from a suite of major ocean syntheses are conducted. Compared with the mention MLDs calculated from individual profiles, MLDs calculated from monthly hateful and gridded profiles show negative biases of 10-20 m in early spring related to the re-stratification process of relatively deep blend layers. erect resolution of profiles besides influences the MLD estimate. MLDs are underestimated by approximately 5-7 ( 14-16 ) thousand with the vertical resolution of 25 ( 50 ) megabyte when the criterion of potential concentration exceeding the 10-m respect by 0.03 kg m−3 is used for the MLD estimate. Using the larger standard ( 0.125 kg m−3 ) by and large reduces the underestimations. In addition, positive biases greater than 100 m are found in winter subpolar regions when MLD criteria based on temperature are used. Biases of the reanalyses are due to both model errors and errors related to differences between the assimilation methods. The resultant role shows that these errors are partially cancelled out through the ensemble average. furthermore, the bias in the ensemble beggarly field of the reanalyses is smaller than in the observation-only analyses. This is largely attributed to comparably higher resolutions of the reanalyses. The robust reproduction of both the seasonal cycle and interannual variability by the corps de ballet bastardly of the reanalyses indicates a great electric potential of the ensemble mean MLD field for investigating and monitoring amphetamine ocean processes. Keywords: ECCO Products Used: ECCO-KFS ; ECCO-V4 ; GECCO2URL: https://doi.org/10.1007/s00382-015-2637-7 Other URLs:
Wu, Yang; Wang, Zhaomin; Liu, Chengyan (2017). On the response of the Lorenz energy cycle for the Southern Ocean to intensified westerlies, Journal of Geophysical Research: Oceans, 3 (122), 2465-2493, 10.1002/2016JC012539. Title: On the reaction of the Lorenz energy cycle for the southern Ocean to intensified westerlies Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Wu, Yang ; Wang, Zhaomin ; Liu, Chengyan Year: 2017 Formatted Citation: Wu, Y., Z. Wang, and C. Liu, 2017 : On the reaction of the Lorenz energy cycle for the southerly Ocean to intensified westerlies. J. Geophys. Res. Ocean., 122 ( 3 ), 2465-2493, doi:10.1002/2016JC012539 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2016JC012539 Other URLs:
Bigdeli, Arash (2017). Modeling Gas Budgets in Marginal Sea Ice Zones. Title: Modeling Gas Budgets in Marginal Sea Ice Zones Type: dissertation Publication: Author(s): Bigdeli, Arash Year: 2017 Formatted Citation: Bigdeli, A., 2017 : Modeling Gas Budgets in Marginal Sea Ice Zones., 114 pp. hypertext transfer protocol : //digitalcommons.uri.edu/oa_diss/678https : //digitalcommons.uri.edu/oa_diss/678. Abstract: Biogeochemical gas budgets at high-latitude regions and sea ice zones are a source of doubt in climate models. The four chief processes that regulate these budgets include advection, public discussion, blend, and accumulation/release from sea ice. Considering the scarcity of data in sea ice zones, specifically during winter time, the environment is excessively ill sampled to constrain these processes through steer measurements ; therefore we proposed models to systematically investigate these processes. The models proposed in this dissertation consist of regional numeric ice-ocean models, 1D forward and inversion numeral models, and analytic models. Keywords: ECCO Products Used: ECCO2URL: https://digitalcommons.uri.edu/oa_diss/678https://digitalcommons.uri.edu/oa_diss/678 Other URLs:
Gelderloos, Renske; Haine, Thomas W. N.; Koszalka, Inga M.; Magaldi, Marcello G. (2017). Seasonal Variability in Warm-Water Inflow toward Kangerdlugssuaq Fjord, Journal of Physical Oceanography, 7 (47), 1685-1699, 10.1175/JPO-D-16-0202.1. Title: Seasonal Variability in Warm-Water Inflow toward Kangerdlugssuaq Fjord Type: Journal article Publication: Journal of Physical Oceanography Author(s): Gelderloos, Renske ; Haine, Thomas W. N. ; Koszalka, Inga M. ; Magaldi, Marcello G. Year: 2017 Formatted Citation: Gelderloos, R., T. W. N. Haine, I. M. Koszalka, and M. G. Magaldi, 2017 : seasonal worker Variability in Warm-Water Inflow toward Kangerdlugssuaq Fjord. Journal of Physical Oceanography, 47 ( 7 ), 1685-1699, doi:10.1175/JPO-D-16-0202.1 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/10.1175/JPO-D-16-0202.1 Other URLs:
Yang, Yang; San Liang, X; Qiu, Bo; Chen, Shuiming (2017). On the Decadal Variability of the Eddy Kinetic Energy in the Kuroshio Extension, Journal of Physical Oceanography, 5 (47), 1169-1187, 10.1175/JPO-D-16-0201.1. Title: On the Decadal Variability of the Eddy Kinetic Energy in the Kuroshio Extension Type: Journal article Publication: Journal of Physical Oceanography Author(s): Yang, Yang ; San Liang, X ; Qiu, Bo ; Chen, Shuiming Year: 2017 Formatted Citation: Yang, Y., X. San Liang, B. Qiu, and S. Chen, 2017 : On the Decadal Variability of the Eddy Kinetic Energy in the Kuroshio Extension. Journal of Physical Oceanography, 47 ( 5 ), 1169-1187, doi:10.1175/JPO-D-16-0201.1 Abstract: previous studies have found that the decadal unevenness of eddy kinetic energy ( EKE ) in the upstream Kuroshio Extension is negatively correlated with the jet strength, which seems counterintuitive at inaugural glance because linear stability psychoanalysis normally suggests that a stronger jet would favor baroclinic instability and therefore lead to stronger eddy activities. Using a time-varying energetics diagnostic methodology, namely, the localize multiscale energy and vorticity analysis ( MS-EVA ), and the MS-EVA-based nonlinear instability theory, this study investigates the forcible mechanism responsible for such variations with the state estimate from the Estimating the Circulation and Climate of the Ocean ( ECCO ), Phase II. For the beginning time, it is found that the decadal modulation of EKE is chiefly controlled by the barotropic instability of the background run. During the high-EKE state, violent meanderings efficiently induce strong barotropic energy transportation from bastardly kinetic energy ( MKE ) to EKE despite the rather weak jet strength. The reverse is on-key in the low-EKE submit. Although the enhance ramble in the high-EKE state besides transfers a significant dowry of energy from mean available potential energy ( MAPE ) to eddy available electric potential department of energy ( EAPE ) through baroclinic instability, the EAPE is not efficiently converted to EKE as the two processes are not well correlated at moo frequencies revealed in the time-varying energetics. The decadal transition of barotropic imbalance is found to be in pace with the North Pacific Gyre Oscillation but with a time slowdown of approximately 2 years. Keywords: ECCO Products Used: ECCO2URL: https://doi.org/10.1175/JPO-D-16-0201.1 Other URLs:
Chen, Wei; Li, Jiancheng; Ray, Jim; Cheng, Minkang (2017). Improved geophysical excitations constrained by polar motion observations and GRACE/SLR time-dependent gravity, Geodesy and Geodynamics, 6 (8), 377-388, 10.1016/j.geog.2017.04.006. Title: Improved geophysical excitations constrained by polar motion observations and GRACE/SLR time-dependent gravity Type: Journal article Publication: Geodesy and Geodynamics Author(s): Chen, Wei ; Li, Jiancheng ; Ray, Jim ; Cheng, Minkang Year: 2017 Formatted Citation: Chen, W., J. Li, J. Ray, and M. Cheng, 2017 : Improved geophysical excitations constrained by polar gesture observations and GRACE/SLR time-dependent graveness. Geodesy and Geodynamics, 8 ( 6 ), 377-388, doi:10.1016/j.geog.2017.04.006 Abstract: At seasonal worker and intraseasonal time scales, polar motions are chiefly excited by angular momentum fluctuations ascribable to mass redistributions and proportional motions in the atmosphere, oceans, and continental water, snow, and ice, which are normally provided by assorted global atmospheric, oceanic, and hydrological models ( some with meteorologic observations assimilated ; for example, NCEP, ECCO, ECMWF, OMCT and LSDM and so forth ). unfortunately, these model outputs are far from perfect and have luminary discrepancies with respect to pivotal motion observations, due to non-uniform distributions of meteorologic observatories, a well as theoretical approximations and non-global mass conservation in these models. In this learn, the LDC ( Least Difference Combination ) method is adopted to obtain some improved atmospheric, oceanic, and hydrological/crospheric angular momentum ( AAM, OAM and HAM/CAM, respectively ) functions and excitation functions ( termed as the LDCgsm solutions ). respective GRACE ( Gravity Recovery and Climate Experiment ) and SLR ( Satellite Laser Ranging ) geopotential data are adopted to correct the non-global mass conservation trouble, while diametric gesture data are used as general constraints. The LDCgsm solutions can reveal not only periodic fluctuations but besides profane trends in AAM, OAM and HAM/CAM, and are in better agreement with diametric motion observations, reducing the unexplained excitation to the level of about 5.5 mas ( standard derivation prize ; about 1/5-1/4 of those corresponding to the original model outputs ). Keywords: Atmospheric, GRACE, Least deviation combination, Polar motion, SLR, and hydrological/crospheric excitation, oceanic ECCO Products Used: ECCO-KFSURL: http://www.sciencedirect.com/science/article/pii/S1674984717300800 Other URLs:
Spreen, Gunnar; Kwok, Ronald; Menemenlis, Dimitris; Nguyen, An T (2017). Sea-ice deformation in a coupled ocean-sea-ice model and in satellite remote sensing data, Cryosph., 1, 1-37, 10.5194/tc-2016-13. Title: Sea-ice distortion in a conjugate ocean-sea-ice model and in satellite distant sense data Type: Journal article Publication: Cryosph. Author(s): Spreen, Gunnar ; Kwok, Ronald ; Menemenlis, Dimitris ; Nguyen, An triiodothyronine Year: 2017 Formatted Citation: Spreen, G., R. Kwok, D. Menemenlis, and A. T. Nguyen, 2017 : Sea-ice deformation in a copulate ocean-sea-ice model and in satellite distant sensing data. Cryosph. ( 1 ), 1-37, doi:10.5194/tc-2016-13 Abstract: A realistic representation of sea-ice contortion in models is significant for accurate model of the sea-ice mass balance. simulate sea-ice distortion from numerical simulations with 4.5, 9, and 18 km horizontal grid spacing and a viscous-plastic ( VP ) sea-ice rheology are compared with man-made aperture radar ( SAR ) satellite observations ( RGPS, RADARSAT Geophysical Processor System ) for the time period 1996-2008. All three simulations can reproduce the large-scale ice distortion patterns, but minor sea- internal-combustion engine deformations and linear kinematic features ( LKFs ) are not adequately reproduced. The mean sea-ice total deforma- tion rate is about 40 % lower in all exemplar solutions than in the satellite observations, particularly in the seasonal worker sea-ice partition. A decrease in model grid spacing, however, produces a higher concentration and more localized ice contortion fea- tures. The 4.5 km simulation produces some linear kinematic features, but not with the right frequency. The addiction on distance scale and probability concentration functions ( PDFs ) of absolute divergence and fleece for all three model solutions show a power-law scaling demeanor similar to RGPS obser- vations, contrary to what was found in some previous studies. overall, the 4.5km pretense produces the most realistic divergence, vorticity, and shear when compared with RGPS data. This study provides an evaluation of high and coarse- resolution viscous-plastic sea-ice simulations based on spa- tial distribution, time series, and power-law scale metrics. Keywords: ECCO Products Used: ECCO2 ; SeaIceURL: http://www.the-cryosphere-discuss.net/tc-2016-13/ Other URLs:
Jia, Fan; Hu, Dunxin; Hu, Shijian; Feng, Junqiao (2017). Niño4 as a Key Region for the Interannual Variability of the Western Pacific Warm Pool, Journal of Geophysical Research: Oceans, 11 (122), 9299-9314, 10.1002/2017JC013208. Title: Niño4 as a Key Region for the Interannual Variability of the Western Pacific Warm Pool Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Jia, Fan ; Hu, Dunxin ; Hu, Shijian ; Feng, Junqiao Year: 2017 Formatted Citation: Jia, F., D. Hu, S. Hu, and J. Feng, 2017 : Niño4 as a Key Region for the Interannual Variability of the Western Pacific Warm Pool. J. Geophys. Res. Ocean., 122 ( 11 ), 9299-9314, doi:10.1002/2017JC013208 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2017JC013208 Other URLs:
Su, Zhan (2017). Preconditioning of Antarctic maximum sea ice extent by upper ocean stratification on a seasonal timescale, Geophysical Research Letters, 12 (44), 6307-6315, 10.1002/2017GL073236. Title: Preconditioning of Antarctic maximal ocean ice extent by upper berth ocean stratification on a seasonal worker timescale Type: Journal article Publication: Geophysical Research Letters Author(s): Su, Zhan Year: 2017 Formatted Citation: Su, Z., 2017 : precondition of Antarctic maximum ocean ice extent by upper ocean stratification on a seasonal worker timescale. Geophys. Res. Lett., 44 ( 12 ), 6307-6315, doi:10.1002/2017GL073236 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: http://doi.wiley.com/10.1002/2017GL073236 Other URLs:
Bowman, Kevin W.; Liu, J; Bloom, A A; Parazoo, N C; Lee, M; Jiang, Z; Menemenlis, Dimitris; Gierach, M M; Collatz, G J; Gurney, K R; Wunch, D (2017). Global and Brazilian Carbon Response to El Niño Modoki 2011-2010, Earth and Space Science, 10 (4), 637-660, 10.1002/2016EA000204. Title: Global and brazilian Carbon Response to El Niño Modoki 2011-2010 Type: Journal article Publication: Earth and Space Science Author(s): Bowman, Kevin W. ; Liu, J ; Bloom, A A ; Parazoo, N C ; Lee, M ; Jiang, Z ; Menemenlis, Dimitris ; Gierach, M M ; Collatz, G J ; Gurney, K R ; Wunch, D Year: 2017 Formatted Citation: Bowman, K. W. and Coauthors, 2017 : Global and brazilian Carbon Response to El Niño Modoki 2011-2010. earth and Space Science, 4 ( 10 ), 637-660, doi:10.1002/2016EA000204 Abstract: The El Niño Modoki in 2010 led to historic droughts in Brazil. In order to understand its impact on carbon paper cycle variability, we derive the 2011-2010 annual carbon paper blend change ( δF↑ ) globally and specifically to Brazil using the NASA Carbon Monitoring System Flux ( CMS-Flux ) model. Satellite observations of CO2, CO, and solar-induced fluorescence ( SIF ) are ingested into a 4D-variational assimilation system driven by carbon bicycle models to infer spatially resolved carbon fluxes including net ecosystem product, biomass burn, and gross elementary productivity ( GPP ). The ball-shaped 2011-2010 net carbon magnetic field change was estimated to be δF↑=-1.60 PgC, while the brazilian carbon magnetic field change was -0.24 ± 0.11 PgC. This calculate is broadly within the uncertainty of former aircraft-based estimates restricted to the Amazon washbasin. The 2011-2010 biomass burning change in Brazil was -0.24 ± 0.036 PgC, which implies a near-zero 2011-2010 change of the net ecosystem production ( NEP ) : The near-zero NEP variety is the leave of quantitatively comparable increases GPP ( 0.31 ± 0.20 PgC ) and breathing in 2011. Comparisons between brazilian and global part carbon flow changes reveal complex interactions between the processes controlling annual land-atmosphere CO2 exchanges. These results show the potential of multiple satellite observations to help quantify and spatially resolve the reply of productiveness and breathing fluxes to climate variability. Keywords: assimilation, carbon hertz, satellite ECCO Products Used: ECCO2URL: https://doi.org/10.1002/2016EA000204 Other URLs:
Ellsworth, David A.; Henze, Christopher E.; Nelson, Bron C. (2017). Interactive visualization of high-dimensional petascale ocean data, 2017 IEEE 7th Symposium on Large Data Analysis and Visualization (LDAV), 36-44, 10.1109/LDAV.2017.8231849. Title: synergistic visual image of high-dimensional petascale ocean data Type: Conference Proceedings Publication: 2017 IEEE 7th Symposium on Large Data Analysis and Visualization ( LDAV ) Author(s): Ellsworth, David A. ; Henze, Christopher E. ; Nelson, Bron C. Year: 2017 Formatted Citation: Ellsworth, D. A., C. E. Henze, and B. C. Nelson, 2017 : synergistic visual image of high-dimensional petascale ocean data. 2017 IEEE 7th Symposium on Large Data Analysis and Visualization ( LDAV ) IEEE, 36-44 pp. doi:10.1109/LDAV.2017.8231849. Abstract: We describe an lotion for synergistic visual image of 5 petabytes of time-varying multivariate data from a high-resolution global ocean circulation model. The input signal data are 10311 hourly ( ocean time ) time steps of respective 2D and 3D fields from a 22-billion point 1/48-degree “ lat-lon capital ” configuration of the MIT General Circulation Model ( MITgcm ). We map the ball-shaped horizontal model sphere onto our 128-screen ( 8×16 ) tiled expose wall to produce a canonic tile with approximately one MITgcm grid point per display pixel, and using this tiling we encode the integral meter serial for multiple native and computed scalar quantities at a collection of ocean depths. We reduce disk bandwidth requirements by converting the model ‘s float point data to 16-bit fix point values, and compressing those values with a lossless video recording encoder, which in concert allow synchronized playback at 24 time steps per second base across all 128 displays. The application allows active assignment of any two encoded tiles to any display, and has multiple interfaces for promptly specifying assorted orderly arrangements of tiles. All subsequent render is done on the flee, with run time see of colormaps, transplant functions, histogram equalization, and labeling. The two data streams on each sieve can be rendered independently and combined in assorted ways, including shading, differencing, horizontal/vertical wipes, and checkerboarding. The two data streams on any screen can optionally be displayed as a scatterplot in their joint attribute outer space. All scatterplots and map-view plots from the lapp x/y localization and astuteness are linked so they all show the current brushable choice. ocean scientists have used the system, and have found previously unidentified features in the data. Keywords: ECCO Products Used: LLC_hiresURL: http://ieeexplore.ieee.org/document/8231849/ Other URLs:
Gregor, Luke (2017). Improved estimates and understanding of interannual trends of CO₂ fluxes in the Southern Ocean. Title: Improved estimates and understanding of interannual trends of CO₂ fluxes in the southerly Ocean Type: dissertation Publication: Author(s): Gregor, Luke Year: 2017 Formatted Citation: Gregor, L., 2017 : Improved estimates and understand of interannual trends of CO₂ fluxes in the Southern Ocean., 176 pp. Abstract: The southerly Ocean plays an significant function in mitigating the effects of anthropogenically drive climate switch. The region accounts for 43 % of oceanic uptake of anthropogenetic carbon dioxide ( CO₂ ). This is anticipate to change with increasing greenhouse boast emissions due to ocean chemistry and climate feedbacks that regulate the carbon cycle in the southerly Ocean. Studies have already shown that Southern Ocean CO₂ is national to interannual unevenness. Measuring and understanding this change has been unmanageable due to sparse experimental data that is biased toward summer. This leaves a all-important break in our understand of the Southern Ocean CO₂ seasonal worker cycle, which needs to be resolved to adequately monitor change and acquire penetration into the drivers of interannual variability. Machine determine has been successful in estimating CO₂ in may parts of the ocean by extrapolating existing data with satellite measurements of proxy variables of CO₂. however, in the southerly Ocean machine learning has proven less successful. large differences between machine learning estimates stem from the dearth of data and complexity of the mechanisms that drive CO₂. In this study the calculate is to reduce the uncertainty of estimates, progress our understand of the interannual drivers, and optimize sampling of CO₂ in the southerly Ocean. Improving the estimates of CO₂ was achieved by investigating : the impact of increasing the gridding resolution of input data and proxy variables, and Support vector regression ( SVR ) and Random Forest Regression ( RFR ) as alternate machine learning methods. It was found that the improvement gained by increasing gridding resolution was minimal and only RFR was able to improve on existing erroneousness estimates. yet, there was commodity agreement of the seasonal worker cycle and interannual trends between RFR, SVR and estimates from the literature. The ensemble base of these methods was used to investigate the unevenness and interannual trends of CO₂ in the southern Ocean. The interannual trends of the ensemble confirmed trends reported in the literature. A dampen of the sink in the early 2000 ‘s, followed by a strengthening a strengthening of the sink into the early 2010 ‘s. Wind was the overall driver of dominant allele decadal interannual trends, being more important during winter due to the increased efficacy of entrainment processes. Summer interannual variability of CO₂ was driven primarily by chlorophyll, which responded to basin scale changes in drivers by the complex interaction with implicit in physics and possibly sub-mesoscale processes. last CO₂ sampling platforms, namely ships, profiling floats and moorings, were tested in an idealized simulated model environment using a machine learning approach path. Ships, simulated from existing cruise tracks, failed to adequately resolve CO₂ below the uncertainty doorway that is required to resolve the seasonal worker cycle of Southern Ocean CO₂. Eight high frequency sampling moorings narrowly outperformed 200 profiling floats, which were both able to adequately resolve the seasonal worker cycle. Though, a combination of ships and profiling floats achieved the smallest error. Keywords: ECCO Products Used: ECCO2URL: http://open.uct.ac.za/bitstream/handle/11427/25320/thesis_sci_2017_gregor_luke.pdf?sequence=1&isAllowed=y Other URLs: hypertext transfer protocol : //open.uct.ac.za/handle/11427/25320, hypertext transfer protocol : //hdl.handle.net/11427/25320
Abbondanza, Claudio; Chin, Toshio M; Gross, Richard S; Heflin, Michael B; Parker, Jay W; Soja, Benedikt S; van Dam, Tonie; Wu, Xiaoping (2017). JTRF2014, the JPL Kalman filter and smoother realization of the International Terrestrial Reference System, Journal of Geophysical Research: Solid Earth, 10 (122), 8474-8510, 10.1002/2017JB014360. Title: JTRF2014, the JPL Kalman filter and smoother realization of the International Terrestrial Reference System Type: Journal article Publication: Journal of Geophysical Research : solid earth Author(s): Abbondanza, Claudio ; Chin, Toshio M ; Gross, Richard S ; Heflin, Michael B ; Parker, Jay W ; Soja, Benedikt S ; avant-garde Dam, Tonie ; Wu, Xiaoping Year: 2017 Formatted Citation: Abbondanza, C., T. M. Chin, R. S. Gross, M. B. Heflin, J. W. Parker, B. S. Soja, T. vanguard Dam, and X. Wu, 2017 : JTRF2014, the JPL Kalman filter and smoother realization of the International Terrestrial Reference System. Journal of Geophysical Research : solid Earth, 122 ( 10 ), 8474-8510, department of the interior : 10.1002/2017JB014360 Abstract: We deliver and discourse JTRF2014, the Terrestrial Reference Frame ( TRF ) the Jet Propulsion Laboratory constructed by combining space-geodetic inputs from very long baseline interferometry ( VLBI ), satellite laser range ( SLR ), Global Navigation Satellite Systems ( GNSS ), and Doppler orbitography and radiopositioning integrated by satellite submitted for the realization of ITRF2014. Determined through a Kalman filter and Rauch-Tung-Striebel smooth assimilating position observations, Earth orientation parameters, and local ties, JTRF2014 is a subsecular, time series-based TRF whose origin is at the quasi-instantaneous kernel of mass ( CM ) as sensed by SLR and whose scale is determined by the quasi-instantaneous VLBI and SLR scales. The dynamic evolution of the positions accounts for a secular motion term, annual, and semiannual periodic modes. Site-dependent variances based on the analysis of loading displacements induced by mass redistributions of tellurian fluids have been used to control the extent of random walk adopted in the combination. With differences in the amplitude of the annual signal within the image 0.5-0.8 millimeter, JTRF2014-derived focus on of network-to-center of mass ( CM-CN ) is in noteworthy agreement with the geocenter motion obtained via apparitional inversion of GNSS, Gravity Recovery and Climate Experiment ( GRACE ) observations and modeled ocean bottom atmospheric pressure from Estimating the Circulation and Climate of the Ocean ( ECCO ). Comparisons of JTRF2014 to ITRF2014 suggest high-level consistency with prison term derivatives of the Helmert transformation parameters connecting the two frames below 0.18 mm/yr and weighted root-mean-square differences of the polar gesticulate ( polar movement rate ) in the arrange of 30 μas ( 17 μas/d ). Keywords: Earth rotation, GNSS VLBI SLR DORIS, Kalman filter, Terrestrial Reference Frames, geocenter motion, meter series ECCO Products Used: ECCO-KFSURL: https://doi.org/10.1002/2017JB014360 Other URLs:
Dushaw, Brian D.; Gaillard, Fabienne; Terre, Thierry (2017). Acoustic Tomography in the Canary Basin: Meddies and Tides, Journal of Geophysical Research: Oceans, 11 (122), 8983-9003, 10.1002/2017JC013356. Title: Acoustic Tomography in the Canary Basin : Meddies and Tides Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Dushaw, Brian D. ; Gaillard, Fabienne ; Terre, Thierry Year: 2017 Formatted Citation: Dushaw, B. D., F. Gaillard, and T. Terre, 2017 : acoustic imaging in the Canary Basin : Meddies and Tides. J. Geophys. Res. Ocean., 122 ( 11 ), 8983-9003, doi:10.1002/2017JC013356 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2017JC013356 Other URLs:
Parkinson, Samuel D.; Funke, Simon W.; Hill, Jon; Piggott, Matthew D.; Allison, Peter A. (2017). Application of the adjoint approach to optimise the initial conditions of a turbidity current with the AdjointTurbidity 1.0 model, Geoscientific Model Development, 3 (10), 1051-1068, 10.5194/gmd-10-1051-2017. Title: Application of the adjoint access to optimise the initial conditions of a turbidity current with the AdjointTurbidity 1.0 model Type: Journal article Publication: Geoscientific Model Development Author(s): Parkinson, Samuel D. ; Funke, Simon W. ; Hill, Jon ; Piggott, Matthew D. ; Allison, Peter A. Year: 2017 Formatted Citation: Parkinson, S. D., S. W. Funke, J. Hill, M. D. Piggott, and P. A. Allison, 2017 : application of the adjoint overture to optimise the initial conditions of a turbidity current with the AdjointTurbidity 1.0 model. Geoscientific Model Development, 10 ( 3 ), 1051-1068, doi:10.5194/gmd-10-1051-2017 Abstract: Turbidity currents are one of the main drivers of sediment transmit from the continental shelf to the deep ocean. The leave sediment deposits can reach hundreds of kilometres into the ocean. Computer models that simulate turbidity currents and the result sediment deposit can help us to understand their cosmopolitan behavior. however, in order to recreate real-world scenarios, the challenge is to find the turbidity stream parameters that reproduce the observations of sediment deposits. This paper demonstrates a solution to the inverse sediment transportation system problem : for a sleep together aqueous deposition, the develop exemplary reconstructs details about the turbidity stream that produced the deposit. The reconstruction is constrained here by a shallow water sediment-laden concentration stream model, which is discretised by the finite-element method acting and an adaptive time-stepping outline. The model is differentiated using the adjoint overture, and an effective gradient-based optimization method acting is applied to identify the turbidity parameters which minimise the misfit between the modelled and the ascertained field sediment deposits. The capabilities of this approach are demonstrated using measurements taken in the Miocene Marnoso-arenacea Formation ( Italy ). We find that whilst the model can not match the sediment precisely due to limitations in the physical processes simulated, it provides valuable insights into the depositional processes and represents a meaning progress in our toolset for interpreting turbidity current deposits. Keywords: ECCO Products Used: ECCO2URL: https://www.geosci-model-dev.net/10/1051/2017/ Other URLs:
Vazquez-Cuervo, Jorge; Torres, Hector S; Menemenlis, Dimitris; Chin, Toshio M; Armstrong, Edward M (2017). Relationship between SST gradients and upwelling off Peru and Chile: model/satellite data analysis, Int. J. Remote Sens., 23 (38), 6599-6622, 10.1080/01431161.2017.1362130. Title: Relationship between SST gradients and upwelling off Peru and Chile : model/satellite data analysis Type: Journal article Publication: Int. J. Remote Sens. Author(s): Vazquez-Cuervo, Jorge ; Torres, Hector S ; Menemenlis, Dimitris ; Chin, Toshio M ; Armstrong, Edward M Year: 2017 Formatted Citation: Vazquez-Cuervo, J., H. S. Torres, D. Menemenlis, T. M. Chin, and E. M. Armstrong, 2017 : relationship between SST gradients and upwelling off Peru and Chile : model/satellite data psychoanalysis. Int. J. Remote Sens., 38 ( 23 ), 6599-6622, doi:10.1080/01431161.2017.1362130 Abstract: The upwelling system off Peru/Chile is characterized by significant mesoscale to submesoscale open variability that results from the instability of the coastal currents ( ascribable to the strong erect and horizontal shears ) and to the mark density cross-shore gradients ( associated with the mean upwelling ). here we investigate to what extent upwelling intensity can be inferred from ocean surface tem- perature ( SST ) derived from remote control sensing. As a first tone in validation, a comparison between SST observations is performed, which indicates that the 1 kilometer gridded multi-scale ultra-high-resolu- tion ( MUR ) SST data hardened is defining a zone of maximum SST gradi- ents closer to shore than the low-resolution National Centers for Environmental Information 0.25° resoluteness data set. Two model versions, at nominal resolutions of 2 km and 4 kilometer, of the Massachusetts Institute of Technology general circulation model are analysed. A high-resolution translation at 2 kilometer is examined for the period 13 September 2011-23 January 2013, while a 4 kilometer version is examined for 6 March 2011-22 April 2013. MUR shows maxima SST gradients in the rate of 0.03 ± 0.02 K km−1 while the model showed higher gradients around 0.05 ± 0.02 K km−1. Based on coherence spectrum, the kinship between upwelling rate ( as inferred from the vertical speed ) and SST gradient is documented in the model from intraseasonal to annual timescales. It suggests that changes in SST gradient magnitudes are related to changes in the saturation of coastal upwelling off Peru and Chile. Such a relation- ship between SST gradients and upright speed would allow for the use of satellite-derived SSTs to monitor the intensity of coastal upwelling from the intraseasonal to annual timescales. Keywords: ECCO Products Used: LLC_hiresURL: https://doi.org/10.1080/01431161.2017.1362130 Other URLs:
Blanken, Hauke; Tremblay, Louis Bruno; Gaskin, Susan; Slavin, Alexander (2017). Modelling the long-term evolution of worst-case Arctic oil spills, Marine Pollution Bulletin, 1-2 (116), 315-331, 10.1016/j.marpolbul.2016.12.070. Title: Modelling the long-run evolution of worst-case Arctic oil spills Type: Journal article Publication: Marine Pollution Bulletin Author(s): Blanken, Hauke ; Tremblay, Louis Bruno ; Gaskin, Susan ; Slavin, Alexander Year: 2017 Formatted Citation: Blanken, H., L. B. Tremblay, S. Gaskin, and A. Slavin, 2017 : Modelling the long-run evolution of worst-case Arctic petroleum spills. Marine Pollution Bulletin, 116 ( 1-2 ), 315-331, doi:10.1016/j.marpolbul.2016.12.070 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://linkinghub.elsevier.com/retrieve/pii/S0025326X16310748 Other URLs:
Van der Stocken, Tom; Menemenlis, Dimitris (2017). Modelling mangrove propagule dispersal trajectories using high-resolution estimates of ocean surface winds and currents, Biotropica, 4 (49), 472-481, 10.1111/btp.12440. Title: Modelling mangrove propagule dispersion trajectories using high-resolution estimates of ocean surface winds and currents Type: Journal article Publication: Biotropica Author(s): Van five hundred Stocken, Tom ; Menemenlis, Dimitris Year: 2017 Formatted Citation: Van five hundred Stocken, T., and D. Menemenlis, 2017 : Modelling mangrove propagule dispersion trajectories using high-resolution estimates of ocean airfoil winds and currents. Biotropica, 49 ( 4 ), 472-481, doi:10.1111/btp.12440 Abstract: Mangrove forests are systems that provide ecosystem services and rely on floating propagules of which the dispersion trajectories are determined by ocean currents and winds. Quantitating connectivity of mangrove patches is an authoritative conservation concern. Current estimates of connectivity, however, fail to integrate the radio link between ocean currents at different spatial scales and dispersion trajectories. here, we use high-resolution estimates of ocean currents and surface winds from meteorologic and oceanographic analyses, in conjunction with experimental data on propagule traits ( for example, density, size, and shape ) and dispersion vector properties ( for example, military capability and direction of water system and wind currents ). We incorporate these data in a dispersion model to illustrate the potential impression of tip on dispersion trajectories of hydrochorous propagules from different mangrove species. We focus on the western amerind Ocean, including the Mozambique Channel, which has received much attention because of its reported oceanic complexity, to illustrate the consequence of oceanic features such as eddy currents and tides. In malice of the complex design of ocean surface currents and winds, some propagules are able to cross the Mozambique Channel. Eddy currents and tides may delay arrival at a desirable web site. experimentally prove differences in tip sensitivity among propagule types were shown to affect the probability of deviation and the shape of dispersion trajectories. The model could be used to reconstruct current fluxes of mangrove propagules that may help explain past and current distributions of mangrove forests and assess the potential for natural expansion of these forests. Keywords: Mozambique Channel, Western Indian Ocean, connectivity, eddy currents, long distance dispersion, tidal motion ECCO Products Used: LLC_hiresURL: https://doi.org/10.1111/btp.12440 Other URLs: hypertext transfer protocol : //doi.wiley.com/10.1111/btp.12440
Evans, Dafydd Gwyn; Toole, John; Forget, Gael; Zika, Jan D; Garabato, Alberto C Naveira; Nurser, A J George; Yu, Lisan (2017). Recent Wind-Driven Variability in Atlantic Water Mass Distribution and Meridional Overturning Circulation, Journal of Physical Oceanography, 3 (47), 633-647, 10.1175/jpo-d-16-0089.1. Title: Recent Wind-Driven Variability in Atlantic Water Mass Distribution and Meridional Overturning Circulation Type: Journal article Publication: Journal of Physical Oceanography Author(s): Evans, Dafydd Gwyn ; Toole, John ; Forget, Gael ; Zika, Jan D ; Garabato, Alberto C Naveira ; Nurser, A J George ; Yu, Lisan Year: 2017 Formatted Citation: Evans, D. G., J. Toole, G. Forget, J. D. Zika, A. C. N. Garabato, A. J. G. Nurser, and L. Yu, 2017 : late Wind-Driven Variability in Atlantic Water Mass Distribution and Meridional Overturning Circulation. Journal of Physical Oceanography, 47 ( 3 ), 633-647, doi:10.1175/jpo-d-16-0089.1 Abstract: Interannual unevenness in the volumetric water mass distribution within the North Atlantic Subtropical Gyre is described in sexual intercourse to unevenness in the Atlantic meridional overturning circulation. The relative roles of diabatic and adiabatic processes in the volume and heating system budgets of the subtropical coil are investigated by projecting data into temperature coordinates as volumes of water using an Argo-based climatology and an ocean state estimate ( ECCO version 4 ). This highlights that variations in the subtropical coil volume budget are predominantly set by transport deviation in the coil. A potent correlation coefficient between the bulk anomaly due to transport deviation and the variability of both thermocline depth and Ekman pumping over the coil suggests that wind-driven heave drives transportation anomalies at the coil boundaries. This wind-driven heave contributes importantly to variations in the inflame content of the coil, as make anomalies in the air-sea fluxes. The analysis presented suggests that wind forcing plays an significant function in driving interannual unevenness in the Atlantic meridional overturning circulation and that this unevenness can be unraveled from spatially distributed hydrographic observations using the model presented here. Keywords: Atmosphere-ocean interaction, Ekman pumping/transport, Inverse methods, North Atlantic Ocean, Ocean circulation, Water masses ECCO Products Used: ECCO-V4URL: http://journals.ametsoc.org/doi/abs/10.1175/JPO-D-16-0089.1 Other URLs:
Dushaw, Brian D.; Sagen, Hanne (2017). The role of simulated small-scale ocean variability in inverse computations for ocean acoustic tomography, The Journal of the Acoustical Society of America, 6 (142), 3541-3552, 10.1121/1.5016816. Title: The function of imitate minor ocean variability in inverse computations for ocean acoustic imaging Type: Journal article Publication: The Journal of the Acoustical Society of America Author(s): Dushaw, Brian D. ; Sagen, Hanne Year: 2017 Formatted Citation: Dushaw, B. D., and H. Sagen, 2017 : The character of simulated minor ocean unevenness in inverse computations for ocean acoustic imaging. The Journal of the Acoustical Society of America, 142 ( 6 ), 3541-3552, doi:10.1121/1.5016816 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://asa.scitation.org/doi/10.1121/1.5016816 Other URLs:
Schwab, Julia Maria (2017). Sediment dynamic, slope instability and potential tsunami hazard at the outer Thai shelf margin, Mergui Ridge, Andaman Sea. Title: Sediment dynamic, slope instability and electric potential tsunami venture at the outer Thai ledge allowance, Mergui Ridge, Andaman Sea Type: dissertation Publication: Author(s): Schwab, Julia Maria Year: 2017 Formatted Citation: Schwab, J. M., 2017 : sediment dynamic, slope instability and electric potential tsunami hazard at the knocked out Thai ledge margin, Mergui Ridge, Andaman Sea., 137 pp. Abstract: The Thai Andaman Sea coast, located in the vicinity of the Sunda Trench, has been repeatedly struck by tsunami, one of them being the catastrophic and highly destructive 2004 indian Ocean Tsunami, which was caused by an extreme earthquake at the Sunda Trench. More than 227000 people lost their lives during this catastrophe, 8200 of them in Thailand alone. Based on tsunami event layers retrieved at the Thai seashore, the geological record shows that this was not the beginning tsunami that hit the area, and possible predecessors to the 2004 Tsunami have been identified in the geological phonograph record for the last two millennium. Most of the tsunami cosmopolitan are of tectonic lineage, but it is well known, that earthquakes are not the alone reservoir for tsunami. Submarine landslides can cause destructive tsunami a well. Submarine landslides occur when a gradient becomes unstable and fails. The stability of a gradient depends largely on the sedimentary conditions, as these conditions govern the properties and the morphology of the aqueous deposits. Thereby they dictate, whether failure preconditioning factors, such as rapid deposit, overpressure buildup or the presence of weak layers are developed. In order to assess the tsunami likely that may arise from a specific slope it is hence all-important to know the aqueous processes and conditions that shape a allowance. furthermore, it is important to know the failure history in order to estimate the frequency of failures and their dimensions. All this information may besides help to assess the likely for future failures and for landslide tsunami. The outer Thai shelf margin in the Andaman Sea has previously not been investigated in detail with regard to sediment dynamics and associated gradient stability. consequently, it was unknown so far, whether bomber mass atrophy at this allowance does occur and whether it may add to the tsunami luck likely for the adjacent coasts. In order to examine the sedimentary development of this slope and in decree to evaluate the express of the slope with regard to its constancy and tsunami potential a modern multibeam bathymetry and high settlement 2D multichannel expression seismic datum bent was acquired during three subsequent research cruises ( MASS I, MASS II and MASS III ) in 2006, 2007 and 2011 from the Mergui Ridge area at the Thai knocked out shelf approximately 250km west off Phuket. The analysis of the newly acquired data shows that the Mergui Ridge, an area of low sedimentary input, is today shaped by bottom currents. This can be concluded from the presence of drift deposits adjacent to areas of moo deposit or erosion of old sediments. Along-slope currents, fluctuating with the monsoon seasons and potentially besides home waves may be responsible for shaping the margin today. After a phase of uplift and subaerial exposure at the conclusion of the Late Miocene, marked by a marked erosive unconformity, the Mergui Ridge shelf sphere subsided in the Pliocene to its holocene put in up to 800m water depth. tectonic deformation nowadays is ongoing but on a smaller scale than in the past. This geological exploitation is reflected in the older sedimentary deposits present in the Mergui Ridge area. This led to the deposition of a aqueous unit characterized by indicators of local corrosion when the ridge was in shallow water. today a thin clothe of undisturbed sediments partially covers these older sediments. Within the sediments of the Mergui Ridge area, seventeen mass transport deposits have been identified. Most of these deposits occur within drift deposits. Their presence shows that the slope has been unstable and failures have taken put repeatedly. The presence of fluids, imbalance of drift deposits and ongoing tectonic natural process are considered as most crucial precondition factors ; this set may lead to failures in the future. Based on their by and large relative small dimension with volumes between approximately 0.3 and 14km3, and the big water depth where the failures occur, it is improbable for most of these failures to have been tsunamigenic, but triggering of tsunami by such failures can not be excluded. Based on the thickness of hemipelagic layers between events, the recurrence of these failures seems to be long, specially compared to the recurrence of tectonic tsunami. A elementary numeral modeling of landslide tsunami propagation and appraisal of run up heighs based on geometric parameters of the previously identified bulk enchant deposits of up to between 1.0 and 25.8m shows that landslides in the area may produce tsunami. however, modeled tsunami constitute worst subject scenarios and wave heights may be overestimated in the simple model. Keywords: Andaman Sea, Mergui Ridge, Thailand, aggregate waste, multibeam bathymetry, reflection seismic, sediment moral force, slope stability, submarine landslide tsunami ECCO Products Used: ECCO2URL: https://macau.uni-kiel.de/servlets/MCRFileNodeServlet/dissertation_derivate_00007408/dissertation_julia_schwab.pdf Other URLs: hypertext transfer protocol : //macau.uni-kiel.de/receive/dissertation_diss_00022126 ? lang=en
Toyoda, Takahiro; Fujii, Yosuke; Kuragano, Tsurane; Kosugi, Naohiro; Sasano, Daisuke; Kamachi, Masafumi; Ishikawa, Yoichi; Masuda, Shuhei; Sato, Kanako; Awaji, Toshiyuki; Hernandez, Fabrice; Ferry, Nicolas; Guinehut, Stéphanie; Martin, Matthew; Andrew Peterson, K; Good, Simon A; Valdivieso, Maria; Haines, Keith; Storto, Andrea; Masina, Simona; Köhl, Armin; Yin, Yonghong; Shi, Li; Alves, Oscar; Smith, Gregory; Chang, You-Soon; Vernieres, Guillaume; Wang, Xiaochun; Forget, Gael; Heimbach, Patrick; Wang, Ou; Fukumori, Ichiro; Lee, Tong; Zuo, Hao; Balmaseda, Magdalena (2017). Interannual-decadal variability of wintertime mixed layer depths in the North Pacific detected by an ensemble of ocean syntheses, Climate Dynamics, 3 (49), 891-907, 10.1007/s00382-015-2762-3. Title: Interannual-decadal variability of winter interracial layer depths in the North Pacific detected by an ensemble of ocean syntheses Type: Journal article Publication: Climate Dynamics Author(s): Toyoda, Takahiro ; Fujii, Yosuke ; Kuragano, Tsurane ; Kosugi, Naohiro ; Sasano, Daisuke ; Kamachi, Masafumi ; Ishikawa, Yoichi ; Masuda, Shuhei ; Sato, Kanako ; Awaji, Toshiyuki ; Hernandez, Fabrice ; Ferry, Nicolas ; Guinehut, Stéphanie ; Martin, Matthew ; Andrew Peterson, K ; Good, Simon A ; Valdivieso, Maria ; Haines, Keith ; Storto, Andrea ; Masina, Simona ; Köhl, Armin ; Yin, Yonghong ; Shi, Li ; Alves, Oscar ; Smith, Gregory ; Chang, You-Soon ; Vernieres, Guillaume ; Wang, Xiaochun ; Forget, Gael ; Heimbach, Patrick ; Wang, Ou ; Fukumori, Ichiro ; Lee, Tong ; Zuo, Hao ; Balmaseda, Magdalena Year: 2017 Formatted Citation: Toyoda, T. and Coauthors, 2017 : Interannual-decadal variability of winter mix layer depths in the North Pacific detected by an corps de ballet of ocean syntheses. Climate Dynamics, 49 ( 3 ), 891-907, doi:10.1007/s00382-015-2762-3 Abstract: The interannual-decadal unevenness of the winter shuffle layer depths ( MLDs ) over the North Pacific is investigated from an empirical orthogonal officiate ( EOF ) psychoanalysis of an ensemble of global ocean reanalyses. The beginning leading EOF mood represents the interannual MLD anomalies centered in the easterly part of the cardinal modality urine formation region in phase confrontation with those in the eastern subtropics and the central Alaskan Gyre. This first EOF modality is highly correlated with the Pacific decadal cycle index on both the interannual and decadal time scales. The moment go EOF modality represents the MLD unevenness in the subtropical mode water ( STMW ) formation area and has a beneficial correlation with the winter West Pacific ( WP ) index with meter lag of 3 years, suggesting the importance of the oceanic dynamic response to the change in the open hoist field associated with the meridional shifts of the Aleutian Low. The above MLD variabilities are in basic agreement with former experimental and model findings. furthermore the reanalysis corps de ballet provides uncertainty estimates. The interannual MLD anomalies in the inaugural and second EOF modes are systematically represented by the individual reanalyses and the amplitudes of the variabilities broadly exceed the ensemble spread of the reanalyses. Besides, the resulting MLD unevenness indices, spanning the 1948-2012 menstruation, should be helpful for characterizing the North Pacific climate variability. In particular, a 6-year cycle including the WP teleconnection blueprint in the atmosphere and the oceanic MLD unevenness in the STMW geological formation region is first detected. Keywords: ECCO Products Used: ECCO-KFS ; ECCO-V4 ; GECCO2URL: https://doi.org/10.1007/s00382-015-2762-3 Other URLs:
Xu, Houze (2017). Global unification problem of the height system, Acta Geodaetica et Cartographica Sinica, 8 (46), 939-944, 10.11947/j.AGCS.2017.20170406. Title: Global union problem of the stature organization Type: Journal article Publication: Acta Geodaetica et Cartographica Sinica Author(s): Xu, Houze Year: 2017 Formatted Citation: Xu, H., 2017 : ball-shaped fusion problem of the altitude system. Acta Geodaetica et Cartographica Sinica, 46 ( 8 ), 939-944, doi:10.11947/j.AGCS.2017.20170406 Abstract: Some fundamental problems on the administration of the ball-shaped mix stature system, including the geometry and gravity definition of the normal stature, the global union of the regional height systems obtained from leveling measurements, and the determination of geoid potential W0 are discussed. The main conclusions are summarized : ① The definition of normal stature in the sense of geometry level and gravity hypothesis is different, so that h-ζ≠HL, here heat content, ζ and HL are geodetic stature, acme anomaly and levelling altitude respectively. rather of it, we found, in the mountain area, the end discipline term have to be added. ② Based on the merging of GNSS/gravity/regional level, the regional level acme can be transformed into a ball-shaped proportional unified height system, however the value of geoid likely W0 is still needed in order to establish an absolute altitude system. ③ W0 can be determinated from the modern geodetic techniques with a certain accuracy, but it is time variable, so that people may merely define a ball-shaped absolute unified altitude system in a fixate epoch. Some cardinal problems on the administration of the global mix altitude system, including the geometry and gravity definition of the normal altitude, the ball-shaped fusion of the regional altitude systems obtained from leveling measurements, and the decision of geoid electric potential W0 are discussed. The main conclusions are summarized : ① The definition of normal stature in the sense of geometry level and graveness hypothesis is different, so that h-ζ≠HL, here planck’s constant, ζ and HL are geodetic height, acme anomaly and levelling altitude respectively. rather of it, we found, in the mountain sphere, the last correction term have to be added. ② Based on the confluent of GNSS/gravity/regional equalization, the regional level stature can be transformed into a ball-shaped relative unified acme system, however the value of geoid potential W0 is hush needed in decree to establish an absolute height system. ③ W0 can be determinated from the advanced geodetic techniques with a certain accuracy, but it is time variable, so that people may entirely define a global absolute unified altitude system in a situate epoch. Keywords: ECCO Products Used: ECCO2URL: http://html.rhhz.net/CHXB/html/2017-8-939.htm Other URLs:
Wang, Zhaomin; Wu, Yang; Lin, Xia; Liu, Chengyan; Xie, Zelin (2017). Impacts of open-ocean deep convection in the Weddell Sea on coastal and bottom water temperature, Climate Dynamics, 9-10 (48), 2967-2981, 10.1007/s00382-016-3244-y. Title: Impacts of open-ocean deep convection in the Weddell Sea on coastal and bottom water temperature Type: Journal article Publication: Climate Dynamics Author(s): Wang, Zhaomin ; Wu, Yang ; Lin, Xia ; Liu, Chengyan ; Xie, Zelin Year: 2017 Formatted Citation: Wang, Z., Y. Wu, X. Lin, C. Liu, and Z. Xie, 2017 : Impacts of open-ocean thick convection in the Weddell Sea on coastal and bottom water temperature. Climate Dynamics, 48 ( 9-10 ), 2967-2981, doi:10.1007/s00382-016-3244-y Abstract: Keywords: ECCO Products Used: ECCO2URL: http://link.springer.com/10.1007/s00382-016-3244-y Other URLs:
Winska, Malgorzata; Nastula, Jolanta; Salstein, David (2017). Hydrological excitation of polar motion by different variables from the GLDAS models, Journal of Geodesy, 12 (91), 1461-1473, 10.1007/s00190-017-1036-8. Title: Hydrological excitation of arctic motion by different variables from the GLDAS models Type: Journal article Publication: Journal of Geodesy Author(s): Winska, Malgorzata ; Nastula, Jolanta ; Salstein, David Year: 2017 Formatted Citation: Winska, M., J. Nastula, and D. Salstein, 2017 : Hydrological excitation of polar motion by different variables from the GLDAS models. Journal of Geodesy, 91 ( 12 ), 1461-1473, doi:10.1007/s00190-017-1036-8 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: http://link.springer.com/10.1007/s00190-017-1036-8 Other URLs:
Meyssignac, B.; Piecuch, C. G.; Merchant, C. J.; Racault, M.-F.; Palanisamy, H.; MacIntosh, C.; Sathyendranath, S.; Brewin, R. (2017). Causes of the Regional Variability in Observed Sea Level, Sea Surface Temperature and Ocean Colour Over the Period 1993-2011, Surveys in Geophysics, 1 (38), 187-215, 10.1007/s10712-016-9383-1. Title: Causes of the Regional Variability in Observed Sea Level, Sea Surface Temperature and Ocean Colour Over the Period 1993-2011 Type: Journal article Publication: Surveys in Geophysics Author(s): Meyssignac, B. ; Piecuch, C. G. ; Merchant, C. J. ; Racault, M.-F. ; Palanisamy, H. ; MacIntosh, C. ; Sathyendranath, S. ; Brewin, R. Year: 2017 Formatted Citation: Meyssignac, B., C. G. Piecuch, C. J. Merchant, M. Racault, H. Palanisamy, C. MacIntosh, S. Sathyendranath, and R. Brewin, 2017 : Causes of the Regional Variability in Observed Sea Level, Sea Surface Temperature and Ocean Colour Over the Period 1993-2011. Surveys in Geophysics, 38 ( 1 ), 187-215, doi:10.1007/s10712-016-9383-1 Abstract: We analyse the regional variability in observe sea airfoil acme ( SSH ), sea surface temperature ( SST ) and ocean color ( OC ) from the ESA Climate Change Initiative datasets over the period 1993-2011. The analysis focuses on the touch of the ocean large-scale climate fluctuations driven by the atmospheric force and do not address the mesoscale unevenness. We use the ECCO translation 4 ocean reanalysis to unravel the role of ocean transport and come on buoyancy fluxes in the note SSH, SST and OC variability. We show that the SSH regional variability is dominated by the steric impression ( except at high latitude ) and is chiefly shaped by ocean heating system transport divergences with some contributions from the surface heat fluxes forcing that can be significant regionally ( confirming earlier results ). This is in contrast with the SST regional variability, which is the solution of the compensation of surface heat fluxes by ocean inflame transportation in the assorted layer and arises from small departures around this background libra. Bringing together the results of SSH and SST analyses, we show that SSH and SST bear some common variability. This is because both SSH and SST variability show significant contributions from the surface hotness fluxes forcing. It is evidenced by the high correlation coefficient between SST and buoyancy-forced SSH about everywhere in the ocean except at high latitude. OC, which is determined by phytoplankton biomass, is governed by the handiness of light and nutrients that basically depend on climate fluctuations. For this rationality, OC shows meaning correlation with SST and SSH. We show that the correlation coefficient with SST displays the same convention as the correlation coefficient with SSH with a negative correlation in the tropics and subtropics and a positive correlation at high latitude. We discuss the reasons for this blueprint. Keywords: ECCO Products Used: ECCO-V4URL: http://link.springer.com/10.1007/s10712-016-9383-1 Other URLs: hypertext transfer protocol : //doi.org/10.1007/s10712-016-9383-1, hypertext transfer protocol : //dx.doi.org/10.1007/s10712-016-9383-1
Ito, Takamitsu; Wang, Ou (2017). Transit Time Distribution based on the ECCO-JPL Ocean Data Assimilation, Journal of Marine Systems (167), 1-10, 10.1016/j.jmarsys.2016.10.015. Title: Transit Time Distribution based on the ECCO-JPL Ocean Data Assimilation Type: Journal article Publication: Journal of Marine Systems Author(s): Ito, Takamitsu ; Wang, Ou Year: 2017 Formatted Citation: Ito, T., and O. Wang, 2017 : transit Time Distribution based on the ECCO-JPL Ocean Data Assimilation. Journal of Marine Systems, 167, 1-10, doi:10.1016/j.jmarsys.2016.10.015 Abstract: Oceanic water mass is a mix of waters with varying ages, and the Transit Time Distribution ( TTD ) measures its long time spectrum. We construct a model-based TTD using the data-constrained circulation fields from the ECCO-JPL Ocean Data Assimilation, and test it against the observe and directly simulated distribution of pCFC-11 from the Pacific and Atlantic basins. The ECCO-JPL circulation provides overall reliable estimates of the amphetamine ocean ventilation rates suitable for biogeochemical studies. note distributions of pCFC-11 in the upper ocean thermocline are well reproduced by the gyrus integral of the model-based TTD ( entail bias < 6 %, spatial correlation > 0.87 ) but there are meaning regional biases in particular near the base of the thermocline and in the thick water system formation regions. The exemplary underestimates the deep pCFC-11 ( > 2000m ) in the North Atlantic and in the southern Ocean. The proportion between the mean and the spread of the age spectrum ( Γ/Δ ) is close to one ( mean=1.04, median=0.99 ) in the ventilate thermocline of the Pacific washbasin but there are meaning regional variations of the ratio. Keywords: CFC-11, Ocean Data Assimilation, Transit Time Distribution ECCO Products Used: ECCO-KFSURL: https://linkinghub.elsevier.com/retrieve/pii/S0924796316303323 Other URLs: hypertext transfer protocol : //www.sciencedirect.com/science/article/pii/S0924796316303323
Savage, Anna (2017). Sea Surface Height Signatures of Internal Gravity Waves. Title: Sea Surface Height Signatures of Internal Gravity Waves Type: thesis Publication: Author(s): Savage, Anna Year: 2017 Formatted Citation: Savage, A., 2017 : Sea Surface Height Signatures of Internal Gravity Waves., 99 pp. hypertext transfer protocol : //deepblue.lib.umich.edu/bitstream/handle/2027.42/138555/savagea_1.pdf ? sequence=1 & isAllowed=y. Abstract: Sea surface stature ( SSH ) is a fundamental variable in physical oceanography and is the key discernible quantity in global satellite altimetry. SSH is a complicate man- ifestation of many oceanic processes, and, as such, exhibits variability over a wide range of space and fourth dimension scales. It is well known that tides are of inaugural order impor- tance in SSH, but SSH contributions outside of this specialize band are besides of great interest. Satellite altimetry has become an invaluable cock in the study of the global ocean. however, the long repeat period ( of order ten to 40 days ) of altimeters implies that high-frequency motions will be aliased in altimeter records. In order to study the lower-frequency SSH unevenness, the aliased high-frequency variability must beginning be accurately removed. Some of these high-frequency motions, such as the stationary component of come on and home tides, can be adequately removed even from aliased records, via harmonic analysis or reaction methods, american samoa retentive as the signal-to-noise ratio ra- tio is relatively high. however, the challenge of removing SSH signals associated with motions that are less predictable, for example, the non-stationary component of the inner tides, or the internal boom wave ( IGW ) continuum, is much greater. To quantify the magnitude of this challenge, high resoluteness ball-shaped general circulation ocean models are used to simulate and study inner tides, the IGW continuum, and early contributions to sea airfoil unevenness. Using these models, we examine the space- and time-scales of SSH unevenness. For exemplify, we compute frequency- horizontal wavenumber ( ω − K ) spectral densities over a several oceanic regions that jointly represent different regimes of global ocean variability. These ω − K spec- tral densities show high department of energy along lines representing the linear dispersion relations predicted by the Sturm-Liouville problem for internal waves. In many oceanic re- gions, the high-frequency motions dominate the minor ( high-wavenumber ) SSH spectrum. This has implications for upcoming wide-swath satellite altimeter missions, which will focus on high-wavenumber SSH spectrum. In addition to quantifying the frequency-horizontal wavenumber spectral densities, we estimate the SSH variability in subtidal, tidal, and supertidal phenomenon through the use of frequency spectral densities. This temporally drive set about allows us to create global maps of SSH variance in these frequency bands. The ball-shaped band-integrated maps are further di- vided into steric and non-steric SSH components, which far helps to delineate different classes of oceanic motions. These ball-shaped band-integrated maps provide both results consistent with previous studies ( for example, of subtidal steric SSH, dominated by mesoscale eddies and well-measured by current generation satellite altimeters ), american samoa well as unprecedented ball-shaped map of the non-stationary component of the home tides and of the IGW continuum. As global general circulation ocean models have only begun to be able to partially resolve the IGW continuum, we believe that our estimate represents a lower bound of variability in the IGW continuum, and will probable increase with increase horizontal and vertical resolution of ocean models. indeed, comparisons of the models used here with in-situ data powerfully suggest that the mod- els used here underestimate the IGW continuum, while representing other motions with a higher accuracy. Keywords: ECCO Products Used: LLC_hiresURL: https://deepblue.lib.umich.edu/bitstream/handle/2027.42/138555/savagea_1.pdf?sequence=1&isAllowed=y Other URLs:
Palmer, M. D.; Roberts, C. D.; Balmaseda, M.; Chang, Y.-S.; Chepurin, G.; Ferry, N.; Fujii, Y.; Good, S. A.; Guinehut, S.; Haines, K.; Hernandez, F.; Köhl, A.; Lee, T.; Martin, M. J.; Masina, S.; Masuda, S.; Peterson, K. A.; Storto, A.; Toyoda, T.; Valdivieso, M.; Vernieres, G.; Wang, O.; Xue, Y. (2017). Ocean heat content variability and change in an ensemble of ocean reanalyses, Climate Dynamics, 3 (49), 909-930, 10.1007/s00382-015-2801-0. Title: Ocean heat capacity unevenness and change in an ensemble of ocean reanalyses Type: Journal article Publication: Climate Dynamics Author(s): Palmer, M. D. ; Roberts, C. D. ; Balmaseda, M. ; Chang, Y.-S. ; Chepurin, G. ; Ferry, N. ; Fujii, Y. ; Good, S. A. ; Guinehut, S. ; Haines, K. ; Hernandez, F. ; Köhl, A. ; Lee, T. ; Martin, M. J. ; Masina, S. ; Masuda, S. ; Peterson, K. A. ; Storto, A. ; Toyoda, T. ; Valdivieso, M. ; Vernieres, G. ; Wang, O. ; Xue, Y. Year: 2017 Formatted Citation: Palmer, M. D. and Coauthors, 2017 : Ocean heat contented variability and change in an ensemble of ocean reanalyses. Climate Dynamics, 49 ( 3 ), 909-930, doi:10.1007/s00382-015-2801-0 Abstract: Keywords: ECCO Products Used: ECCO-KFS ; ECCO-V4URL: http://link.springer.com/10.1007/s00382-015-2801-0 Other URLs:
Wolfe, Christopher L.; Cessi, Paola; Cornuelle, Bruce D. (2017). An Intrinsic Mode of Interannual Variability in the Indian Ocean, Journal of Physical Oceanography, 3 (47), 701-719, 10.1175/JPO-D-16-0177.1. Title: An intrinsic Mode of Interannual Variability in the amerind Ocean Type: Journal article Publication: Journal of Physical Oceanography Author(s): Wolfe, Christopher L. ; Cessi, Paola ; Cornuelle, Bruce D. Year: 2017 Formatted Citation: Wolfe, C. L., P. Cessi, and B. D. Cornuelle, 2017 : An intrinsic Mode of Interannual Variability in the indian Ocean. Journal of Physical Oceanography, 47 ( 3 ), 701-719, doi:10.1175/JPO-D-16-0177.1 Abstract: An intrinsic mode of self-sustained, interannual unevenness is identified in a coarse-resolution ocean model forced by an per annum repeating atmospheric state. The unevenness has maximum loading in the indian Ocean, with a significant projection into the South Atlantic Ocean. It is argued that this intrinsic modality is caused by baroclinic instability of the model ‘s Leeuwin Current, which radiates out to the tropical indian and South Atlantic Oceans as farseeing Rossby waves at a period of 4 year. This previously undescribed mode has a signally narrowband clock series. however, the variability is not synchronized with the annual motorbike ; the phase of the cycle varies chaotically on decadal time scales. The presence of this home manner reduces the predictability of the ocean circulation by obscuring the reaction to forcing or initial condition perturbations. The signature of this mode can be seen in higher-resolution global ocean models driven by high-frequency atmospheric force, but altimeter and assimilation analyses do not show obvious signatures of such a mode, possibly because of insufficient duration. Keywords: ECCO Products Used: ECCO-V4URL: http://journals.ametsoc.org/doi/10.1175/JPO-D-16-0177.1 Other URLs:
Wu, Yang; Zhai, Xiaoming; Wang, Zhaomin (2017). Decadal-Mean Impact of Including Ocean Surface Currents in Bulk Formulas on Surface Air-Sea Fluxes and Ocean General Circulation, Journal of Climate, 23 (30), 9511-9525, 10.1175/JCLI-D-17-0001.1. Title: Decadal-Mean shock of Including Ocean Surface Currents in Bulk Formulas on Surface Air-Sea Fluxes and Ocean General Circulation Type: Journal article Publication: Journal of Climate Author(s): Wu, Yang ; Zhai, Xiaoming ; Wang, Zhaomin Year: 2017 Formatted Citation: Wu, Y., X. Zhai, and Z. Wang, 2017 : Decadal-Mean affect of Including Ocean Surface Currents in Bulk Formulas on Surface Air-Sea Fluxes and Ocean General Circulation. J. Clim., 30 ( 23 ), 9511-9525, doi:10.1175/JCLI-D-17-0001.1 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/10.1175/JCLI-D-17-0001.1 Other URLs:
Manucharyan, Georgy E.; Thompson, Andrew F. (2017). Submesoscale Sea Ice-Ocean Interactions in Marginal Ice Zones, Journal of Geophysical Research: Oceans, 12 (122), 9455-9475, 10.1002/2017JC012895. Title: Submesoscale Sea Ice-Ocean Interactions in Marginal Ice Zones Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Manucharyan, Georgy E. ; Thompson, Andrew F. Year: 2017 Formatted Citation: Manucharyan, G. E., and A. F. Thompson, 2017 : Submesoscale Sea Ice-Ocean Interactions in Marginal Ice Zones. J. Geophys. Res. Ocean., 122 ( 12 ), 9455-9475, doi:10.1002/2017JC012895 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2017JC012895 Other URLs:
Juricke, Stephan; Palmer, Tim N.; Zanna, Laure (2017). Stochastic Subgrid-Scale Ocean Mixing: Impacts on Low-Frequency Variability, Journal of Climate, 13 (30), 4997-5019, 10.1175/JCLI-D-16-0539.1. Title: Stochastic Subgrid-Scale Ocean Mixing : Impacts on Low-Frequency Variability Type: Journal article Publication: Journal of Climate Author(s): Juricke, Stephan ; Palmer, Tim N. ; Zanna, Laure Year: 2017 Formatted Citation: Juricke, S., T. N. Palmer, and L. Zanna, 2017 : stochastic Subgrid-Scale Ocean Mixing : Impacts on Low-Frequency Variability. J. Clim., 30 ( 13 ), 4997-5019, doi:10.1175/JCLI-D-16-0539.1 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/10.1175/JCLI-D-16-0539.1 Other URLs:
Nguyen, An; Ocaña, Victor; Garg, Vikram; Heimbach, Patrick; Toole, John; Krishfield, Richard; Lee, Craig; Rainville, Luc (2017). On the Benefit of Current and Future ALPS Data for Improving Arctic Coupled Ocean-Sea Ice State Estimation, Oceanography, 2 (30), 69-73, 10.5670/oceanog.2017.223. Title: On the Benefit of Current and Future ALPS Data for Improving Arctic Coupled Ocean-Sea Ice State Estimation Type: Journal article Publication: oceanography Author(s): Nguyen, An ; Ocaña, Victor ; Garg, Vikram ; Heimbach, Patrick ; Toole, John ; Krishfield, Richard ; Lee, Craig ; Rainville, Luc Year: 2017 Formatted Citation: Nguyen, A., V. Ocaña, V. Garg, P. Heimbach, J. Toole, R. Krishfield, C. Lee, and L. Rainville, 2017 : On the Benefit of Current and Future ALPS Data for Improving Arctic Coupled Ocean-Sea Ice State Estimation. Oceanography, 30 ( 2 ), 69-73, doi:10.5670/oceanog.2017.223 Abstract: Autonomous and Lagrangian platforms and sensors ( ALPS ) have revolutionized the way the subsurface ocean is observed. The synergy between ALPS-based observations and coupled ocean-sea ice state of matter and parameter estimate as practiced in the Arctic Subpolar coil country Estimate ( ASTE ) project is illustrated through several examples. In the western Arctic, Ice- Tethered Pro lers have been providing significant hydrographic constraints of the water column down to 800 thousand depth since 2004. ASTE takes advantage of these detailed constraints to infer vertical pro les of diapycnal shuffle rates in the central Canada Basin. The state estimate model is besides used to explore the likely utility of Argo-type oats in regions with sparse data coverage, such as the easterly Arctic and the seasonal ice zones. last, the model is applied to identify likely deployment sites that optimize the impact of oat measurements on bulk oceanographic quantities of interest. Keywords: ECCO Products Used: ASTE ; SeaIceURL: http://doi.org/10.5670/oceanog.2017.223 Other URLs:
Sarkar, S.; Scotti, A. (2017). From Topographic Internal Gravity Waves to Turbulence, Annual Review of Fluid Mechanics, 1 (49), 195-220, 10.1146/annurev-fluid-010816-060013. Title: From Topographic Internal Gravity Waves to Turbulence Type: Journal article Publication: Annual Review of Fluid Mechanics Author(s): Sarkar, S. ; Scotti, A. Year: 2017 Formatted Citation: Sarkar, S., and A. Scotti, 2017 : From Topographic Internal Gravity Waves to Turbulence. Annual Review of Fluid Mechanics, 49 ( 1 ), 195-220, doi:10.1146/annurev-fluid-010816-060013 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://www.annualreviews.org/doi/10.1146/annurev-fluid-010816-060013 Other URLs:
Stepanov, Vladimir Nikolaevich (2017). The Atlantic meridional heat and volume transports from ocean models and observations, Works of Hydrometeorological Research Center of the Russian Federation, 364, 104-130. Title: The Atlantic meridional inflame and volume transports from ocean models and observations Type: Journal article Publication: Works of Hydrometeorological Research Center of the russian federation Author(s): Stepanov, Vladimir Nikolaevich Year: 2017 Formatted Citation: Stepanov, V. N., 2017 : The Atlantic meridional heat and volume transports from ocean models and observations. Works of Hydrometeorological Research Center of the russian Federation ( 364 ), 104-130, hypertext transfer protocol : //method.meteorf.ru/publ/tr/tr364/stepan.pdf Abstract: Atlantic meridional circulation ( AMOC ) plays a major character in moving heat around in the ocean, which significantly affects the Earth ‘s climate on different time scales. In this newspaper an overview of the model and observations-derived estimates of the AMOC and the meridional heating system transport ( MHT ) at 26.5° N, 41° N and 34° S over the 2004-2013 period is presented with vehemence on the model calculations obtained with a 1/16° eddy-resolving ball-shaped model.The reasons of discrepancy between the model values of the AMOC and the MHT and the observations-derived estimates are analysed. The findings in this paper provide guidance in understanding the AMOC and MHT dissimilarities at these three latitudes between ocean models and observation-basedestimates. Keywords: ECCO Products Used: ECCO2URL: http://method.meteorf.ru/publ/tr/tr364/stepan.pdf Other URLs:
Koldunov, Nikolay V.; Köhl, Armin; Serra, Nuno; Stammer, Detlef (2017). Sea ice assimilation into a coupled ocean-sea ice model using its adjoint, The Cryosphere, 5 (11), 2265-2281, 10.5194/tc-11-2265-2017. Title: Sea ice assimilation into a pair ocean-sea ice model using its adjoint Type: Journal article Publication: The Cryosphere Author(s): Koldunov, Nikolay V. ; Köhl, Armin ; Serra, Nuno ; Stammer, Detlef Year: 2017 Formatted Citation: Koldunov, N. V., A. Köhl, N. Serra, and D. Stammer, 2017 : Sea ice assimilation into a pair ocean-sea ice model using its adjoint. Cryosph., 11 ( 5 ), 2265-2281, doi:10.5194/tc-11-2265-2017 Abstract: Satellite ocean ice rink concentrations ( SICs ), together with several ocean parameters, are assimilated into a regional Arctic coupled ocean-sea ice model covering the period of 2000-2008 using the adjoint method acting. There is hearty improvement in the representation of the SIC spatial distribution, in especial with respect to the position of the ice edge and to the concentrations in the cardinal parts of the Arctic Ocean during summer months. seasonal cycles of total Arctic sea internal-combustion engine area show an overall improvement. During summer months, values of sea ice rink extent ( SIE ) integrated over the model sphere become lowball compared to observations, but absolute differences of entail SIE to the data are reduced in about all months and years. Along with the SICs, the ocean frosting thickness fields besides become closer to observations, providing added value by the assimilation. very sparse ocean data in the Arctic, corresponding to a very small contribution to the price serve, prevent ample improvements of assimilate ocean variables, with the exception of the sea surface temperature. Keywords: ECCO Products Used: GECCO2URL: https://www.the-cryosphere.net/11/2265/2017/ Other URLs:
Melzer, B A; Subrahmanyam, B (2017). Evaluation of GRACE Mascon Gravity Solution in Relation to Interannual Oceanic Water Mass Variations, IEEE Transactions on Geoscience and Remote Sensing, 2 (55), 907-914, 10.1109/TGRS.2016.2616760. Title: Evaluation of GRACE Mascon Gravity Solution in Relation to Interannual Oceanic Water Mass Variations Type: Journal article Publication: IEEE Transactions on Geoscience and Remote Sensing Author(s): Melzer, B A ; Subrahmanyam, B Year: 2017 Formatted Citation: Melzer, B. A., and B. Subrahmanyam, 2017 : evaluation of GRACE Mascon Gravity Solution in Relation to Interannual Oceanic Water Mass Variations. IEEE Transactions on Geoscience and Remote Sensing, 55 ( 2 ), 907-914, doi:10.1109/TGRS.2016.2616760 Abstract: With attest of an accelerate water system cycle over the past few decades, we make inferences on the spatial variability of interannual dehydration and haste patterns from 2003 to 2014 graveness anomalies, using the Gravity Recovery and Climate Experiment ( GRACE ) satellite mascon data specify. Comparison of the mascon solution with an ensemble harmonic solution is conducted, along with establishment over the oceans via sea coat altitude from multimission altimetry minus Argo floats data/GECCO2 [ the GECCO2 ocean synthesis is the german contribution to Estimating the Circulation and Climate of the Ocean project ( www.ecco-group.org ) ] steric sea level. The mascon solution was systematically more accurate than its spherical harmonic counterpart across large spatial and temporal role scales, due chiefly to the implicit in smooth from the mascon cells. Comparison of GRACE with both GECCO2 + altimetry and Argo + altimetry mass estimates revealed an outgrowth in phase with involve to the annual cycle, but yielded an rmse of only 5.6 mm in the interannual signal after phase correction. This paper furthers tell of an accelerate water bicycle at a pace of 1.5 % ± 1.1 % at low latitudes, and provides a means of validation for oceanic fresh water budget studies based on salt measurements. Keywords: AD 2003 to 2014, Altimetry, Argo floats data, GECCO2, GRACE mascon graveness solution, GRACE satellite mascon data rig, Gravity, Gravity Recovery and Climate Experiment, Gravity Recovery and Climate Experiment ( GRACE ), Harmonic analysis, Market research, Salinity ( geophysical ), Satellites, Sea tied, accelerated water cycle, gravity, gravity anomaly, altitude measurement, interannual oceanic water mass variation, mascon cellular telephone, multimission altimetry, ocean batch, oceanic fresh water budget study, haste blueprint, remote sense, brininess ( geophysical ), brininess measurements, ocean degree, sea come on altitude, spatial interannual vaporization variability, steric ocean charge, water bicycle ECCO Products Used: GECCO2 URL: Other URLs:
Malpress, Veda; Bestley, Sophie; Corney, Stuart; Welsford, Dirk; Labrousse, Sara; Sumner, Michael; Hindell, Mark (2017). Bio-physical characterisation of polynyas as a key foraging habitat for juvenile male southern elephant seals (Mirounga leonina) in Prydz Bay, East Antarctica, PLOS ONE, 9 (12), e0184536, 10.1371/journal.pone.0184536. Title: Bio-physical word picture of polynya as a identify forage habitat for juvenile male southern elephant seals ( Mirounga leonina ) in Prydz Bay, East Antarctica Type: Journal article Publication: PLOS ONE Author(s): Malpress, Veda ; Bestley, Sophie ; Corney, Stuart ; Welsford, Dirk ; Labrousse, Sara ; Sumner, Michael ; Hindell, Mark Year: 2017 Formatted Citation: Malpress, V., S. Bestley, S. Corney, D. Welsford, S. Labrousse, M. Sumner, and M. Hindell, 2017 : Bio-physical characterization of polynya as a key foraging habitat for adolescent male southern elephant seals ( Mirounga leonina ) in Prydz Bay, East Antarctica. PLOS ONE, 12 ( 9 ), e0184536, doi:10.1371/journal.pone.0184536 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://dx.plos.org/10.1371/journal.pone.0184536 Other URLs:
Fogwill, Christopher J.; van Sebille, Erik; Cougnon, Eva A.; Turney, Chris S. M.; Rintoul, Steve R.; Galton-Fenzi, Benjamin K.; Clark, Graeme F.; Marzinelli, E. M.; Rainsley, Eleanor B.; Carter, Lionel (2016). Brief communication: Impacts of a developing polynya off Commonwealth Bay, East Antarctica, triggered by grounding of iceberg B09B, The Cryosphere, 6 (10), 2603-2609, 10.5194/tc-10-2603-2016. Title: Brief communication : Impacts of a developing polynya off Commonwealth Bay, East Antarctica, triggered by grounding of crisphead lettuce B09B Type: Journal article Publication: The Cryosphere Author(s): Fogwill, Christopher J. ; van Sebille, Erik ; Cougnon, Eva A. ; Turney, Chris S. M. ; Rintoul, Steve R. ; Galton-Fenzi, Benjamin K. ; Clark, Graeme F. ; Marzinelli, E. M. ; Rainsley, Eleanor B. ; Carter, Lionel Year: 2016 Formatted Citation: Fogwill, C.J., E. van Sebille, E.A. Cougnon, C.S.M.Turney, S.R. Rintoul, B.K. Galton-Fenzi, G.F. Clark, E.M. Marzinelli, E.B. Rainsley, and L. Carter, 2016 : abbreviated communication : Impacts of a developing polynya off Commonwealth Bay, East Antarctica, triggered by grounding of crisphead lettuce B09B, The Cryosphere, 10 ( 6 ), 2603-2609, department of the interior : 10.5194/tc-10-2603-2016 Abstract: The dramatic calve of the Mertz Glacier spit in 2010, precipitated by the movement of crisphead lettuce B09B, reshaped the oceanographic regimen across the Mertz Polynya and Commonwealth Bay, regions where high-salinity shelf water ( HSSW ) – the precursor to Antarctic bottomland water ( AABW ) – is formed. here we confront post-calving observations that suggest that this reconfiguration and subsequent anchor of B09B have driven the exploitation of a modern polynya and associate HSSW production off Commonwealth Bay. Supported by satellite observations and model, our findings demonstrate how local icescape changes may impact the formation of HSSW, with electric potential implications for large-scale ocean circulation. Keywords: ECCO Products Used: ECCO2URL: https://tc.copernicus.org/articles/10/2603/2016/ Other URLs:
Spatar, Ciprian Bogdan (2016). Observability and estimation of geocentremotion using multi-satellite laser ranging, Newcastle University. Title: Observability and estimate of geocentremotion using multi-satellite laser ranging Type: dissertation Publication: Newcastle University Author(s): Spatar, Ciprian Bogdan Year: 2016 Formatted Citation: Spatar, C.B., 2016 : Observability and estimate of geocentremotion using multi-satellite laser roll, Newcastle University Abstract: Artificial satellites orbit about the Earth ‘s system center of mass, a steer known as the geocentre that conventionally defines the long-run lineage of the sublunar reference frame ( TRF ). In a frame attached to the Earth ‘s crust, the geocentre exhibits motions on subdaily to secular time scales ascribable to assorted geophysical processes. annual variations induced by the redistribution of fluid mass in the Earth ‘s airfoil level are most big and can bias ice rink mass balance and sea charge change estimates if neglected. theoretically, these annual variations are directly discernible by any satellite geodetic technique, but scope model complications affect the recovery of geocentre motion from Global Navigation Satellite Systems ( GNSS ) and Doppler Orbitography and Radiopositioning Integrated by Satellite ( DORIS ) datum. This study focuses on Satellite Laser Ranging ( SLR ), the only proficiency prove to yield dependable geocentre motion estimates via translational approaches. By means of collinearity diagnosis applied to the determination of geocentre apparent motion using the network shift overture, it is shown that, subject to certain parameterisation constraints, the depleted earth orbiters ( LEOs ) Starlette, Ajisai and the Laser Relativity Satellite ( LARES ) can beneficially supplement the traditionally employed pair Laser Geodynamics Satellite ( LAGEOS ) 1 and 2. In particular, the combination of LAGEOS-1 and 2 with LARES data can improve the observability of the geocentre coordinates by 25-30 % on average compared to LAGEOS-only solutions due to both the larger numeral of observations and the rise higher sensitivity of LARES to geocentre gesture. Tests involving different satellite combinations show that the contribution of Stella is minor owing to its quasi-polar sphere, whereas observations to the medium earth orbiters ( MEOs ) Etalon-1 and 2 are besides infrequently acquired to benefit the recovery of geocentre apparent motion and possibly early parameters of geophysical concern. An analysis of SLR data spanning two decades partitioned in weekly batches reveals that geocentre gesture estimates derived from LAGEOS-Starlette-Stella-Ajisai combinations are contaminated by modelling errors to a larger extent than in LAGEOS-only solutions and, without considerable advances in sphere model, the exploitation of the high sensitivity of Starlette and Ajisai to geocentre gesticulate appears outside. Compounded by the short tracking history of LARES, a conclusive assessment of the long-run quality of LAGEOS-LARES solutions is impracticable at present. iv exchangeable to other geodetic parameters, the geocentre coordinates display temporal correlations that have been typically neglected in former studies. The power spectral densities ( PSDs ) of weekly derived geocentre coordinates display a power-law behavior at long periods and white noise flatten for frequencies above 4 cycles per class ( cpy ). When temporal role dependencies are appropriately modelled using one of the readily available maximum likelihood estimate ( MLE ) software implementations, the uncertainties of the annual amplitude and phase estimates inflate by an average factor of 1.6 for hebdomadally prison term series over 12 years in distance. The formal errors of the linear and quadratic tendency estimates amplify by a larger factor of 2.2-2.3. First-order autoregressive noise plus white noise and power-law make noise are the prefer stochastic models in most cases based on model-selection criteria. As demonstrated through the analysis of freelancer time series, for sampling periods longer than one workweek the first-order autoregressive model becomes more competitive on its own due to the inhibition of white noise at high frequencies, but the power-law make noise model is besides occasionally preferred. Kinematic estimates of geocentre coordinates are highly coherent with network switch results across the entire frequency range only when post positions are simultaneously solved for. Additionally, network chemise estimates are more coherent with kinematic results when the plate parameter is omitted from the functional model of the similarity transformation linking the quasi-instantaneous frames and the layman skeletal system. In addition to draconitic errors related to solar radiation pressure model, long-period tidal aliases due to mismodelled tidal constituents besides contaminate geocentre motion estimates. Independent geodetic estimates and geophysical mannequin predictions validating the results from this survey agree that the annual geocentre gesticulate signals have amplitudes of 2-3 millimeter in the equatorial components and 4-6 millimeter in the Z part. The utmost geocentre vector magnitude of about 7 millimeter is attained in July. Keywords: ECCO Products Used: ECCO-V3URL: https://theses.ncl.ac.uk/jspui/handle/10443/3333 Other URLs:
Buckley, Martha W.; Marshall, John (2016). Observations, inferences, and mechanisms of the Atlantic Meridional Overturning Circulation: A review, Reviews of Geophysics, 1 (54), 5-63, 10.1002/2015RG000493. Title: Observations, inferences, and mechanisms of the Atlantic Meridional Overturning Circulation : A review Type: Journal article Publication: Reviews of Geophysics Author(s): Buckley, Martha W. ; Marshall, John Year: 2016 Formatted Citation: Buckley, M, W. and J. Marshall, 2016 : Observations, inferences, and mechanisms of the Atlantic Meridional Overturning Circulation : A review, Reviews of Geophysics, 54 ( 1 ), 5-63, department of the interior : 10.1002/2015RG000493 Abstract: This is a review about the Atlantic Meridional Overturning Circulation ( AMOC ), its mean structure, temporal variability, controlling mechanisms, and role in the coupled climate system. The AMOC plays a cardinal function in climate through its heat and fresh water transports. Northward ocean heat enchant achieved by the AMOC is responsible for the relative affectionateness of the Northern Hemisphere compared to the Southern Hemisphere and is thought to play a function in setting the intend placement of the Intertropical Convergence Zone north of the equator. The AMOC is a key means by which hotness anomalies are sequestered into the ocean ‘s department of the interior and therefore modulates the trajectory of climate switch. Fluctuations in the AMOC have been linked to low-frequency unevenness of Atlantic sea coat temperatures with a host of implications for climate variability over surrounding landmasses. On intra-annual timescales, variability in AMOC is large and primarily reflects the reply to local wreathe push ; meridional coherence of anomalies is limited to that of the wind field. On interannual to decadal timescales, AMOC changes are chiefly geostrophic and related to buoyancy anomalies on the western limit. A pacesetter area for decadal AMOC changes is located in a western “ passage zone ” along the limit between the subtropical and subpolar gyres. Decadal AMOC anomalies are communicated meridionally from this area. AMOC observations, arsenic well as the expanded ocean experimental network provided by the Argo range and satellite altimetry, are inspiring efforts to develop decadal predictability systems using couple atmosphere-ocean models initialized by ocean data. Keywords: ECCO Products Used: ECCO-V4URL: https://onlinelibrary.wiley.com/doi/10.1002/2015RG000493 Other URLs:
Ward, Ben A.; Follows, Michael J. (2016). Marine mixotrophy increases trophic transfer efficiency, mean organism size, and vertical carbon flux, Proceedings of the National Academy of Sciences, 11 (113), 2958-2963, 10.1073/pnas.1517118113. Title: Marine mixotrophy increases trophic transfer efficiency, mean organism size, and erect carbon paper flow Type: Journal article Publication: Proceedings of the National Academy of Sciences Author(s): Ward, Ben A. ; Follows, Michael J. Year: 2016 Formatted Citation: Ward, B.A. and M.J. Follows, 2016, Marine mixotrophy increases trophic transfer efficiency, average organism size, and vertical carbon liquefy, Proceedings of the National Academy of Sciences, 113 ( 11 ), 2958-2963, department of the interior : 10.1073/pnas.1517118113 Abstract: Mixotrophic plankton, which combine the consumption of inorganic resources and the consumption of populate prey, are omnipresent in marine ecosystems, but their integrated biogeochemical impacts remain ill-defined. We address this return by removing the rigorous eminence between phytoplankton and zooplankton from a ball-shaped model of the marine plankton food network. This simplification allows the egress of a realistic trophic network with increased fidelity to empiric estimates of plankton community structure and elemental stoichiometry, proportional to a system in which autotrophy and heterotrophy are mutually exclusive. Mixotrophy enhances the transfer of biomass to larger sizes classes further up the food chain, leading to an approximately treble addition in global average organism size and an ~35 % increase in sinking carbon liquefy. Keywords: ECCO Products Used: ECCO-V3URL: https://www.pnas.org/content/113/11/2958 Other URLs:
Monteiro, Fanny M.; Bach, Lennart T.; Brownlee, Colin; Bown, Paul; Rickaby, Rosalind E. M.; Poulton, Alex J.; Tyrrell, Toby; Beaufort, Luc; Dutkiewicz, Stephanie; Gibbs, Samantha; Gutowska, Magdalena A.; Lee, Renee; Riebesell, Ulf; Young, Jeremy; Ridgwell, Andy (2016). Why marine phytoplankton calcify, Science Advances, 7 (2), e1501822, 10.1126/sciadv.1501822. Title: Why marine phytoplankton calcify Type: Journal article Publication: Science Advances Author(s): Monteiro, Fanny M. ; Bach, Lennart T. ; Brownlee, Colin ; Bown, Paul ; Rickaby, Rosalind E. M. ; Poulton, Alex J. ; Tyrrell, Toby ; Beaufort, Luc ; Dutkiewicz, Stephanie ; Gibbs, Samantha ; Gutowska, Magdalena A. ; Lee, Renee ; Riebesell, Ulf ; Young, Jeremy ; Ridgwell, Andy Year: 2016 Formatted Citation: Monteiro, F.M. L.T. Bach, C. Brownlee, P. Bown, R.E.M. Rickaby, A.J. Poulton, T. Tyrrell, L. Beaufort, S. Dutkiewicz, S. Gibbs, M.A. Gutowska, R. Lee, U. Riebesell, J. Young, and A. Ridgwell, 2016 : Why marine phytoplankton calcify, Science Advances, 2 ( 7 ), e1501822, department of the interior : 10.1126/sciadv.1501822 Abstract: Calcifying marine phytoplankton – coccolithophores – are some of the most successful yet enigmatic organisms in the ocean and are at risk from ball-shaped change. To better understand how they will be affected, we need to know “ why ” coccolithophores calcify. We review coccolithophorid evolutionary history and cell biota a well as insights from holocene experiments to provide a critical judgment of the costs and benefits of calcification. We conclude that calcification has gamey department of energy demands and that coccolithophores might have calcified initially to reduce crop imperativeness but that extra benefits such as protection from photodamage and viral/bacterial attack further explain their eminent diversity and broad spectrum ecology. The cost-benefit aspect of these traits is illustrated by novel ecosystem model, although conclusive observations remain limited. In the future ocean, the tradeoff between changing ecological and physiological costs of calcification and their benefits will ultimately decide how this authoritative group is affected by ocean acidification and global warm. Keywords: ECCO Products Used: ECCO-V3URL: https://advances.sciencemag.org/lookup/doi/10.1126/sciadv.1501822 Other URLs:
Talmy, D.; Martiny, A.C.; Hill, C.; Hickman, A.E.; Follows, M.J (2016). Microzooplankton regulation of surface ocean POC:PON ratios, Global Biogeochemical Cycles, 2 (30), 311-332, 10.1002/2015GB005273. Title: Microzooplankton regulation of airfoil ocean POC : PON ratios Type: Journal article Publication: Global Biogeochemical Cycles Author(s): Talmy, D. ; Martiny, A.C. ; Hill, C. ; Hickman, A.E. ; Follows, M.J Year: 2016 Formatted Citation: Talmy, D., A.C. Martiny, C. Hill, A.E. Hickman, and M.J. Follows, 2016 : Microzooplankton regulation of open ocean POC : PON ratios, Global Biogeochemical Cycles, 30 ( 2 ), 311-332, department of the interior : 10.1002/2015GB005273 Abstract: The elementary composition of particulate organic topic in the coat ocean importantly affects the efficiency of the ocean ‘s store of carbon. Though the elemental composition of chief producers is an crucial factor, holocene observations from the western North Atlantic Ocean revealed that carbon-to-nitrogen ratios ( C : N ) of phytoplankton were importantly higher than the relatively homeostatic ratio of the entire particulate pool ( particulate organic carbon : particulate constituent nitrogen ; POC : PON ). here we use an idealize ecosystem model to show how interactions between primary coil and secondary producers maintain the intend musical composition of open particulates and the remainder between chief producers and bulk material. Idealized physiologic models of phytoplankton and microzooplankton, constrained by testing ground data, uncover contrasting autotrophic and heterotrophic responses to nitrogen limitation : under nitrogen restriction, phytoplankton roll up carbon in carbohydrates and lipids while microzooplankton deplete inner C reserves to fuel breathing. Global ecosystem simulations yield hypothetical ball-shaped distributions of phytoplankton and microzooplankton C : N ratio predicting elevated phytoplankton C : N ratios in the high-light, low-nutrient regions of the ocean despite a lower, homeostatic POC : PON ratio due to respiration of excess carbon in systems discipline to top-down restraint. The model qualitatively captures and provides a simple rendition for, a ball-shaped compilation of airfoil ocean POC : PON data. Keywords: ECCO Products Used: ECCO-V3URL: https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2015GB005273 Other URLs:
Sun, Yu; Riva, Riccardo; Ditmar, Pavel (2016). Optimizing estimates of annual variations and trends in geocenter motion and J 2 from a combination of GRACE data and geophysical models, Journal of Geophysical Research: Solid Earth, 11 (121), 8352-8370, 10.1002/2016JB013073. Title: Optimizing estimates of annual variations and trends in geocenter gesture and J 2 from a combination of GRACE data and geophysical models Type: Journal article Publication: Journal of Geophysical Research : solid earth Author(s): Sun, Yu ; Riva, Riccardo ; Ditmar, Pavel Year: 2016 Formatted Citation: Sun, Y., R. Riva, and P. Ditmar, 2016 : Optimizing estimates of annual variations and trends in geocenter motion and J 2 from a combination of GRACE data and geophysical models. Journal of Geophysical Research : solid Earth, 121 ( 11 ), 8352-8370, doi:10.1002/2016JB013073 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: https://onlinelibrary.wiley.com/doi/10.1002/2016JB013073 Other URLs:
Mikolaj, M.; Meurers, B.; Güntner, A. (2016). Modelling of global mass effects in hydrology, atmosphere and oceans on surface gravity, Computers & Geosciences (93), 12-20, 10.1016/j.cageo.2016.04.014. Title: Modelling of ball-shaped batch effects in hydrology, atmosphere and oceans on surface graveness Type: Journal article Publication: Computers & Geosciences Author(s): Mikolaj, M. ; Meurers, B. ; Güntner, A. Year: 2016 Formatted Citation: Mikolaj, M., B. Meurers, and A. Güntner, 2016 : model of ball-shaped mass effects in hydrology, atmosphere and oceans on airfoil graveness. Computers & Geosciences, 93, 12-20, doi:10.1016/j.cageo.2016.04.014 Abstract: Keywords: ECCO Products Used: ECCO-KFS ; ECCO2URL: https://linkinghub.elsevier.com/retrieve/pii/S0098300416301157 Other URLs:
Save, Himanshu; Bettadpur, Srinivas; Tapley, Byron D. (2016). High-resolution CSR GRACE RL05 mascons, Journal of Geophysical Research: Solid Earth, 10 (121), 7547-7569, 10.1002/2016JB013007. Title: High-resolution CSR GRACE RL05 mascons Type: Journal article Publication: Journal of Geophysical Research : upstanding earth Author(s): Save, Himanshu ; Bettadpur, Srinivas ; Tapley, Byron D. Year: 2016 Formatted Citation: Save, H., S. Bettadpur, and B. D. Tapley, 2016 : high-resolution CSR GRACE RL05 mascons. Journal of Geophysical Research : solid Earth, 121 ( 10 ), 7547-7569, doi:10.1002/2016JB013007 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: http://doi.wiley.com/10.1002/2016JB013007 Other URLs:
Srivastava, Atul; Dwivedi, Suneet; Mishra, Alok Kumar (2016). Intercomparison of High-Resolution Bay of Bengal Circulation Models Forced with Different Winds, Marine Geodesy, 3-4 (39), 271-289, 10.1080/01490419.2016.1173606. Title: Intercomparison of High-Resolution Bay of Bengal Circulation Models Forced with Different Winds Type: Journal article Publication: Marine Geodesy Author(s): Srivastava, Atul ; Dwivedi, Suneet ; Mishra, Alok Kumar Year: 2016 Formatted Citation: Srivastava, A., S. Dwivedi, and A. K. Mishra, 2016 : Intercomparison of High-Resolution Bay of Bengal Circulation Models Forced with Different Winds. Marine Geodesy, 39 ( 3-4 ), 271-289, doi:10.1080/01490419.2016.1173606 Abstract: Keywords: ECCO Products Used: ECCO-KFS ; ECCO2URL: http://www.tandfonline.com/doi/full/10.1080/01490419.2016.1173606 Other URLs:
Sraj, Ihab; Zedler, Sarah E.; Knio, Omar M.; Jackson, Charles S.; Hoteit, Ibrahim (2016). Polynomial Chaos-Based Bayesian Inference of K-Profile Parameterization in a General Circulation Model of the Tropical Pacific, Monthly Weather Review, 12 (144), 4621-4640, 10.1175/MWR-D-15-0394.1. Title: Polynomial Chaos-Based Bayesian Inference of K-Profile Parameterization in a General Circulation Model of the Tropical Pacific Type: Journal article Publication: Monthly Weather Review Author(s): Sraj, Ihab ; Zedler, Sarah E. ; Knio, Omar M. ; Jackson, Charles S. ; Hoteit, Ibrahim Year: 2016 Formatted Citation: Sraj, I., S. E. Zedler, O. M. Knio, C. S. Jackson, and I. Hoteit, 2016 : polynomial Chaos-Based bayesian inference of K-Profile Parameterization in a General Circulation Model of the Tropical Pacific. Monthly Weather Review, 144 ( 12 ), 4621-4640, doi:10.1175/MWR-D-15-0394.1 Abstract: The authors present a polynomial chaos ( personal computer ) -based bayesian inference method for quantifying the uncertainties of the K-profile parameterization ( KPP ) within the MIT general circulation mannequin ( MITgcm ) of the tropical Pacific. The inference of the unsealed parameters is based on a Markov chain Monte Carlo ( MCMC ) scheme that utilizes a newly formulated test statistic taking into bill the unlike components representing the structures of churning mix on both daily and seasonal time scales in summation to the datum quality, and filters for the effects of argument perturbations over those as a leave of changes in the wind. To avoid the prohibitive computational monetary value of integrating the MITgcm model at each MCMC iteration, a surrogate model for the examination statistic using the personal computer method acting is built. Because of the make noise in the model predictions, a basis-pursuit-denoising ( BPDN ) compressed sensing approach path is employed to determine the personal computer coefficients of a representative foster model. The personal computer deputy is then used to evaluate the test statistic in the MCMC footstep for sampling the back tooth of the unsealed parameters. Results of the posteriors indicate dependable agreement with the default values for two parameters of the KPP model, namely the critical bulk and gradient Richardson numbers ; while the posteriors of the remaining parameters were scantily informative. Keywords: ECCO Products Used: OCCAURL: http://journals.ametsoc.org/doi/10.1175/MWR-D-15-0394.1 Other URLs:
Zedler, S. E.; Jackson, C. S.; Yao, F.; Heimbach, P.; Kohl, A.; Scott, R. B.; Hoteit, I (2016). Calibration of the K-Profile Parameterization of ocean boundary layer mixing. Part I: Development. Title: Calibration of the K-Profile Parameterization of ocean boundary layer blend. character I : Development Type: Journal article Publication: Author(s): Zedler, S. E. ; Jackson, C. S. ; Yao, F. ; Heimbach, P. ; Kohl, A. ; Scott, R. B. ; Hoteit, I Year: 2016 Formatted Citation: Zedler, S. E., C. S. Jackson, F. Yao, P. Heimbach, A. Kohl, R. B. Scott, and I. Hoteit, 2016 : calibration of the K-Profile Parameterization of ocean limit layer mix. part I : Development., department of the interior : hypertext transfer protocol : //arxiv.org/abs/1604.05802 Abstract: In model comparisons with experimental data, not all data contain data that is utilitarian for answering a specific science doubt. If non-relevant or highly changeable data are included in a comparison measured, they can reduce the significance of early observations that matter for the scientific work of sake. Sources of make noise and correlations among total quantities within a comparison metric function affect the significance of a bespeak that is utilitarian for testing model skill. In the place setting of the tropical Pacific, we introduce an “ inquiry dependent ” ( ID ) metric of model-data comparison that determines the relative importance of the TOGA-TAO buoy observations of the ocean temperature, brininess, and horizontal currents for influencing upper-ocean vertical churning mix as represented by the K-Profile Parameterization ( KPP ) embedded in the MIT general circulation model ( MITgcm ) for the 2004-2007 time period. The ID metric function addresses a challenge that the wind force is likely a more meaning source of uncertainty for the ocean state than the turbulence itself, and that the observations are correlated in fourth dimension, space, and across ocean state of matter variables. In this approach the MITgcm is used to infer unevenness and relationships in and among the data, and to determine the reply structures that are most relevant for constraining unsealed parameters. We demonstrate that the ID metric function is able to distinguish the effects due to parameter perturbations from those due to uncertain winds and that it is important to include multiple kinds of data in the comparison, suggesting that the ID measured is appropriate for habit in a calibration of the KPP exemplar parameters using mooring observations of the ocean state. Keywords: ECCO Products Used: OCCAURL: http://arxiv.org/abs/1604.05802 Other URLs:
Song, Hajoon; Marshall, John; Munro, David R.; Dutkiewicz, Stephanie; Sweeney, Colm; McGillicuddy, D. J.; Hausmann, Ute (2016). Mesoscale modulation of air-sea CO 2 flux in Drake Passage, Journal of Geophysical Research: Oceans, 9 (121), 6635-6649, 10.1002/2016JC011714. Title: Mesoscale modulation of air-sea CO 2 blend in Drake passage Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Song, Hajoon ; Marshall, John ; Munro, David R. ; Dutkiewicz, Stephanie ; Sweeney, Colm ; McGillicuddy, D. J. ; Hausmann, Ute Year: 2016 Formatted Citation: Song, H., J. Marshall, D. R. Munro, S. Dutkiewicz, C. Sweeney, D. J. McGillicuddy, and U. Hausmann, 2016 : Mesoscale transition of air-sea CO 2 flux in Drake Passage. J. Geophys. Res. Ocean., 121 ( 9 ), 6635-6649, doi:10.1002/2016JC011714 Abstract: Keywords: ECCO Products Used: OCCAURL: http://doi.wiley.com/10.1002/2016JC011714 Other URLs:
Wunsch, C (2016). Global Ocean Integrals and Means, with Trend Implications, Ann Rev Mar Sci (8), 1-33, 10.1146/annurev-marine-122414-034040. Title: Global Ocean Integrals and Means, with Trend Implications Type: Journal article Publication: Ann Rev Mar Sci Author(s): Wunsch, C Year: 2016 Formatted Citation: Wunsch, C., 2016 : global Ocean Integrals and Means, with Trend Implications. Ann Rev Mar Sci, 8, 1-33, doi:10.1146/annurev-marine-122414-034040 Abstract: Understanding the ocean requires determining and explaining ball-shaped integrals and equivalent average values of temperature ( heat ), salt ( fresh water and salt capacity ), sea level, energy, and other properties. Attempts to determine means, integrals, and climatologies have been hindered by thinly and ill circulate diachronic observations in a system in which both signals and background randomness are spatially very inhomogeneous, leading to potentially big worldly bias errors that must be corrected at the 1 % charge or better. With the exception of the upper ocean in the current altimetric-Argo era, no clear software documentation exists on the best methods for estimating means and their changes for quantities such as heat and fresh water at the levels required for anthropogenetic signals. Underestimates of trends are deoxyadenosine monophosphate likely as overestimates ; for example, recent inferences that multidecadal oceanic inflame uptake has been greatly lowball are plausible. For newly or augmented observing systems, calculating the accuracies and precisions of ball-shaped, multidecadal sampling densities for the entire urine column is necessity to avoid the unrecoverable personnel casualty of scientifically substantive information. Keywords: ECCO Products Used: ECCO-V4 ; ECCO2 URL: Other URLs:
Soccodato, Alice; D’Ovidio, Francesco; Lévy, Marina; Jahn, Oliver; Follows, Michael J.; De Monte, Silvia (2016). Estimating planktonic diversity through spatial dominance patterns in a model ocean, Marine Genomics (29), 9-17, 10.1016/j.margen.2016.04.015. Title: Estimating planktonic diversity through spatial dominance patterns in a model ocean Type: Journal article Publication: Marine Genomics Author(s): Soccodato, Alice ; D’Ovidio, Francesco ; Lévy, Marina ; Jahn, Oliver ; Follows, Michael J. ; De Monte, Silvia Year: 2016 Formatted Citation: Soccodato, A., F. D’Ovidio, M. Lévy, O. Jahn, M. J. Follows, and S. De Monte, 2016 : Estimating planktonic diverseness through spatial authority patterns in a model ocean. Marine Genomics, 29, 9-17, doi:10.1016/j.margen.2016.04.015 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://linkinghub.elsevier.com/retrieve/pii/S1874778716300393 Other URLs:
Erickson, Zachary K; Thompson, Andrew F; Cassar, Nicolas; Sprintall, Janet; Mazloff, Matthew R (2016). An advective mechanism for Deep Chlorophyll Maxima formation in southern Drake Passage, Geophysical Research Letters, n/a-n/a, 10.1002/2016GL070565. Title: An advective mechanism for Deep Chlorophyll Maxima formation in southern Drake passage Type: Journal article Publication: Geophysical Research Letters Author(s): Erickson, Zachary K ; Thompson, Andrew F ; Cassar, Nicolas ; Sprintall, Janet ; Mazloff, Matthew R Year: 2016 Formatted Citation: Erickson, Z. K., A. F. Thompson, N. Cassar, J. Sprintall, and M. R. Mazloff, 2016 : An advective mechanism for Deep Chlorophyll Maxima formation in southerly Drake Passage. Geophys. Res. Lett., n/a-n/a, doi:10.1002/2016GL070565 Abstract: We observe open and sub-surface fluorescence-derived chlorophyll utmost in southerly Drake enactment during austral summer. backscatter measurements indicate that the Deep Chlorophyll Maxima ( DCMs ) are besides cryptic biomass maximum, and euphotic depth estimates show that they lie below the euphotic layer. Sub-surface, off-shore and near-surface, on-shore features lie along the same isopycnal, suggesting advective generation of DCMs. temperature measurements indicate a thaw of surface waters throughout austral summer, capping the winter Water ( WW ) layer and increasing off-shelf stratification in this isopycnal level. The outcrop position of the WW isopycnal level shifts onshore, into a surface phytoplankton blooming. A lateral pass potential vorticity ( PV ) gradient develops, such that a down-gradient PV blend is consistent with offshore, along-isopycnal tracer transport. Model results are consistent with this mechanism. subduction of chlorophyll and biomass along isopycnals represents a biological condition not observed by coat satellite measurements which may contribute importantly to the forte of the biological pump in this region. Keywords: Arctic and Antarctic oceanography, Physical and biogeochemical interactions, Upper ocean and mix layer processes, biophysical interactions, continental shelf and slope processes, bass chlorophyll maximum, eddy tape drive ECCO Products Used: SOSEURL: http://dx.doi.org/10.1002/2016GL070565 Other URLs:
Mazloff, Matthew R; Boening, Carmen (2016). Rapid variability of Antarctic Bottom Water transport into the Pacific Ocean inferred from GRACE, Geophysical Research Letters, 8 (43), 3822-3829, 10.1002/2016GL068474. Title: Rapid unevenness of Antarctic Bottom Water transport into the Pacific Ocean inferred from GRACE Type: Journal article Publication: Geophysical Research Letters Author(s): Mazloff, Matthew R ; Boening, Carmen Year: 2016 Formatted Citation: Mazloff, M. R., and C. Boening, 2016 : rapid variability of Antarctic Bottom Water conveyance into the Pacific Ocean inferred from GRACE. Geophys. Res. Lett., 43 ( 8 ), 3822-3829, doi:10.1002/2016GL068474 Abstract: Air-ice-ocean interactions in the south-polar lead to constitution of the densest waters on earth. These waters convect and spread to fill the ball-shaped abysmal oceans. The heat and carbon paper storage capacity of these water masses, combined with their abysmal residence times that often exceed centuries, makes this circulation pathway the most efficient sequestering mechanism on Earth. Yet monitoring this pathway has proven challenging ascribable to the nature of the formation processes and the depth of the circulation. The Gravity Recovery and Climate Experiment ( GRACE ) graveness mission is providing a time series of ocean mass redistribution and offers a transformative view of the abysmal circulation. here we use the GRACE measurements to infer, for the first time, a 2003-2014 fourth dimension series of Antarctic Bottom Water export into the South Pacific. We find this export highly varying, with a standard deviation of 1.87~sverdrup ( Sv ) and a decorrelation timescale of less than 1~month. A significant course is indiscernible. Keywords: Arctic and Antarctic oceanography, Climate and interannual unevenness, Remote detection and electromagnetic processes, south-polar bottom water, grace, ocean circulation, water masses ECCO Products Used: SOSEURL: http://dx.doi.org/10.1002/2016GL068474 Other URLs:
Brzeziński, Aleksander; Jóźwik, Mieczysław; Kaczorowski, Marek; Kalarus, Maciej; Kasza, Damian; Kosek, Wiesław; Nastula, Jolanta; Szczerbowski, Zbigniew; Wińska, Małgorzata; Wronowski, Roman; Zdunek, Ryszard; Zieliński, Janusz B. (2016). Geodynamic Research at the Department of Planetary Geodesy, SRC PAS, Reports on Geodesy and Geoinformatics, 1 (100), 131-147, 10.1515/rgg-2016-0011. Title: Geodynamic Research at the Department of Planetary Geodesy, SRC PAS Type: Journal article Publication: Reports on Geodesy and Geoinformatics Author(s): Brzeziński, Aleksander ; Jóźwik, Mieczysław ; Kaczorowski, Marek ; Kalarus, Maciej ; Kasza, Damian ; Kosek, Wiesław ; Nastula, Jolanta ; Szczerbowski, Zbigniew ; Wińska, Małgorzata ; Wronowski, Roman ; Zdunek, Ryszard ; Zieliński, Janusz B. Year: 2016 Formatted Citation: Brzeziński, A. and Coauthors, 2016 : Geodynamic Research at the Department of Planetary Geodesy, SRC PAS. Reports on Geodesy and Geoinformatics, 100 ( 1 ), 131-147, doi:10.1515/rgg-2016-0011 Abstract: The Department of Planetary Geodesy of the Space Research Centre PAS has been conducting research on a broad spectrum of problems within a field of global dynamics of the Earth. In this report we describe the investigations on selected subjects concerning polar motion ( modeling and geophysical interpretation of the Chandler careen, hydrological excitement of seasonal signals, research for optimum prediction methods ), tectonic activeness in the area of the Książ Geodynamic Laboratory of the SRC, and last the new joint Polish-Italian plan GalAc analyzing feasibility and utility of equipping second-generation Galileo satellites with accelerometers. Keywords: ECCO Products Used: ECCO-KFSURL: http://content.sciendo.com/view/journals/rgg/100/1/article-p131.xml Other URLs:
Tamsitt, Veronica; Talley, Lynne D.; Mazloff, Matthew R.; Cerovečki, Ivana (2016). Zonal Variations in the Southern Ocean Heat Budget, Journal of Climate, 18 (29), 6563-6579, 10.1175/JCLI-D-15-0630.1. Title: Zonal Variations in the Southern Ocean Heat Budget Type: Journal article Publication: Journal of Climate Author(s): Tamsitt, Veronica ; Talley, Lynne D. ; Mazloff, Matthew R. ; Cerovečki, Ivana Year: 2016 Formatted Citation: Tamsitt, V., L. D. Talley, M. R. Mazloff, and I. Cerovečki, 2016 : zonal Variations in the Southern Ocean Heat Budget. J. Clim., 29 ( 18 ), 6563-6579, doi:10.1175/JCLI-D-15-0630.1 Abstract: Keywords: ECCO Products Used: SOSEURL: http://journals.ametsoc.org/doi/10.1175/JCLI-D-15-0630.1 Other URLs:
Liang, Xinfeng; Yu, Lisan (2016). Variations of the Global Net Air-Sea Heat Flux during the “Hiatus” Period (2001-10), Journal of Climate, 10 (29), 3647-3660, 10.1175/JCLI-D-15-0626.1. Title: Variations of the global internet Air-Sea Heat Flux during the “ Hiatus ” Period ( 2001-10 ) Type: Journal article Publication: Journal of Climate Author(s): Liang, Xinfeng ; Yu, Lisan Year: 2016 Formatted Citation: Liang, X., and L. Yu, 2016 : Variations of the global internet Air-Sea Heat Flux during the “ Hiatus ” Period ( 2001-10 ). J. Clim., 29 ( 10 ), 3647-3660, doi:10.1175/JCLI-D-15-0626.1 Abstract: An assessment is made of the beggarly and unevenness of the net air-sea heat magnetic field, Qnet, from four products ( ECCO, OAFlux-CERES, ERA-Interim, and NCEP1 ) over the global ice-free ocean from January 2001 to December 2010. For the 10-yr “ foramen ” menstruation, all products agree on an overall final heat gain over the ball-shaped ice-free ocean, but the magnitude varies from 1.7 to 9.5 W m−2. The differences among products are particularly large in the Southern Ocean, where they can not tied agree on whether the region gains or loses heat on the annual mean basis. Decadal trends of Qnet differ importantly between products. ECCO and OAFlux-CERES show about no drift, whereas ERA-Interim suggests a downward course and NCEP1 shows an up tendency. therefore, numeral simulations utilizing different surface liquefy forcing products will likely produce diverge trends of the ocean heat content during this period. The down vogue in ERA-Interim started from 2006, driven by a particular pattern change in the tropical regions …. Keywords: ECCO Products Used: ECCO-V4URL: http://journals.ametsoc.org/doi/10.1175/JCLI-D-15-0626.1 Other URLs:
Heaney, Kevin D. (2016). Deep Water Ocean Acoustics. Title: Deep Water Ocean Acoustics Type: Report Publication: Author(s): Heaney, Kevin D. Year: 2016 Formatted Citation: Heaney, K. D., 2016 : abstruse Water Ocean Acoustics., Arlington, VA, 27 pp. hypertext transfer protocol : //apps.dtic.mil/docs/citations/AD1025892. Abstract: In this work for code 32 ( Ocean Acoustics ) of the Office of Naval Research, OASIS has focused on the development of new propagation models and their application to problems in acoustic propagation in thick water, including global scale acoustic generation relevant to geophysics sound sources ( volcanoes/earthquakes ) and the signal detection of nuclear test event. The Peregrine PE model was developed as an re-coding in C of the Range-dependent Acoustic Model ( RAM ). This code was extended to 3-dimensions by applying the split-step Pade kernel in cross-range at each range step. The kernel of Peregrine ( Seahawks ) has been submitted to the Ocean Atmospheric Media Library ( OAML ). Peregrine was applied to hydroacoustic recordings from a comprehensive Test Ban Treaty Organization ( CTBTO ) of a seismic imaging experiment off of Japan, with excellent quantitative agreement in both the energy received and the travel time, both exhibiting strong 3D generation. A newspaper was published on using noise correlations to estimate local sound rush, ampere well as the horizontal deflection caused by mesoscale eddies as they traverse long ranges. generation and ambient noise analysis was conducted on the North Pacific Acoustics Laboratory Philippine Sea tests 2009 and 2010, both of which Dr. Heaney participated as a co-chief scientist. Keywords: ECCO Products Used: ECCO2URL: https://apps.dtic.mil/docs/citations/AD1025892 Other URLs:
Ocaña, Victor; Zorita, Eduardo; Heimbach, Patrick (2016). Stochastic secular trends in sea level rise, Journal of Geophysical Research: Oceans, 4 (121), 2183-2202, 10.1002/2015JC011301. Title: Stochastic secular trends in sea horizontal surface rise Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Ocaña, Victor ; Zorita, Eduardo ; Heimbach, Patrick Year: 2016 Formatted Citation: Ocaña, V., E. Zorita, and P. Heimbach, 2016 : stochastic secular trends in ocean flat rise. J. Geophys. Res. Ocean., 121 ( 4 ), 2183-2202, doi:10.1002/2015JC011301 Abstract: Global mean sea horizontal surface ( GMSL ) has been rising since ( at least ) the nineteenth century and the rate of rise may be increasing. several studies that attempt to explain the long-run swerve of GMSL during the instrumental record plowshare the park assumption that this vogue is deterministic in nature and different from natural variations. hera we show that the tendency can alternatively be explained, at least in partially, as being caused by random variations within the coupled ocean-atmosphere-cryosphere system, and therefore not having a deterministic origin. These random trends, which add to externally forced changes ( for example, through anthropogenetic climate change ), are a consequence of the integrate quality of GMSL, which is the accumulative addition of temporal role contributions that exhibit random character, and whose consolidation results in GMSL variations with continuity on decadal-centennial time scales. The generation of trends by consolidation of random stationary randomness ( i.e., evening in a constant climate ) is a robust and fundamental feature of stochastically forced systems with memory. The integrate character of GMSL results in an intrinsic difficulty in distinguishing internal from externally forced trends. Keywords: 1641 Sea horizontal surface variety, 4215 Climate and interannual unevenness, 4540 Ice mechanics and air/sea/ice exchange proces, 4556 Sea grade : variations and hateful, autoregressive/integrated process, ocean unevenness, ocean degree ECCO Products Used: URL: http://dx.doi.org/10.1002/2015JC011301 Other URLs:
Blunden, Jessica; Arndt, Derek S. (2016). State of the Climate in 2015, Bulletin of the American Meteorological Society, 8 (97), Si-S275, 10.1175/2016BAMSStateoftheClimate.1. Title: State of the Climate in 2015 Type: Journal article Publication: Bulletin of the american Meteorological company Author(s): Blunden, Jessica ; Arndt, Derek S. Year: 2016 Formatted Citation: Blunden, J., and D. S. Arndt, 2016 : submit of the Climate in 2015. Bull. Am. Meteorol. Soc., 97 ( 8 ), Si-S275, doi:10.1175/2016BAMSStateoftheClimate.1 Abstract: Editor ‘s note : For comfortable download the posted pdf of the State of the Climate for 2016 is a identical low-resolution charge. A high-resolution replicate of the report is available by clicking here. Please be patient as it may take a few minutes for the high-resolution file to download. Keywords: ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/10.1175/2016BAMSStateoftheClimate.1 Other URLs: hypertext transfer protocol : //journals.ametsoc.org/bams/article/97/8/Si/215971/State-of-the-Climate-in-2015
Zhang, Min; Zhou, Lei; Fu, Hongli; Jiang, Lianghong; Zhang, Xiangming (2016). Assessment of intraseasonal variabilities in China Ocean Reanalysis (CORA), Acta Oceanologica Sinica, 3 (35), 90-101, 10.1007/s13131-016-0820-2. Title: Assessment of intraseasonal variabilities in China Ocean Reanalysis ( CORA ) Type: Journal article Publication: Acta Oceanologica Sinica Author(s): Zhang, Min ; Zhou, Lei ; Fu, Hongli ; Jiang, Lianghong ; Zhang, Xiangming Year: 2016 Formatted Citation: Zhang, M., L. Zhou, H. Fu, L. Jiang, and X. Zhang, 2016 : assessment of intraseasonal variabilities in China Ocean Reanalysis ( CORA ). Acta Oceanologica Sinica, 35 ( 3 ), 90-101, doi:10.1007/s13131-016-0820-2 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://link.springer.com/10.1007/s13131-016-0820-2 Other URLs:
Aksenov, Yevgeny; Karcher, Michael; Proshutinsky, Andrey; Gerdes, Rüdiger; de Cuevas, Beverly; Golubeva, Elena; Kauker, Frank; Nguyen, An T.; Platov, Gennady A.; Wadley, Martin; Watanabe, Eiji; Coward, Andrew C.; Nurser, A. J. George (2016). Arctic pathways of Pacific Water: Arctic Ocean Model Intercomparison experiments, Journal of Geophysical Research: Oceans, 1 (121), 27-59, 10.1002/2015JC011299. Title: Arctic pathways of Pacific Water : arctic Ocean Model Intercomparison experiments Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Aksenov, Yevgeny ; Karcher, Michael ; Proshutinsky, Andrey ; Gerdes, Rüdiger ; de Cuevas, Beverly ; Golubeva, Elena ; Kauker, Frank ; Nguyen, An T. ; Platov, Gennady A. ; Wadley, Martin ; Watanabe, Eiji ; Coward, Andrew C. ; Nurser, A. J. George Year: 2016 Formatted Citation: Aksenov, Y. and Coauthors, 2016 : Arctic pathways of Pacific Water : arctic Ocean Model Intercomparison experiments. J. Geophys. Res. Ocean., 121 ( 1 ), 27-59, doi:10.1002/2015JC011299 Abstract: Keywords: ECCO Products Used: ECCO2 ; SeaIceURL: http://doi.wiley.com/10.1002/2015JC011299 Other URLs:
Li, Xin; Rignot, Eric; Mouginot, Jeremie; Scheuchl, Bernd (2016). Ice flow dynamics and mass loss of Totten Glacier, East Antarctica, from 1989 to 2015, Geophysical Research Letters, 12 (43), 6366-6373, 10.1002/2016GL069173. Title: Ice menstruate dynamics and mass personnel casualty of Totten Glacier, East Antarctica, from 1989 to 2015 Type: Journal article Publication: Geophysical Research Letters Author(s): Li, Xin ; Rignot, Eric ; Mouginot, Jeremie ; Scheuchl, Bernd Year: 2016 Formatted Citation: Li, X., E. Rignot, J. Mouginot, and B. Scheuchl, 2016 : Ice flow dynamics and mass loss of Totten Glacier, East Antarctica, from 1989 to 2015. Geophys. Res. Lett., 43 ( 12 ), 6366-6373, doi:10.1002/2016GL069173 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2016GL069173 Other URLs:
Vondrák, Jan; Ron, Cyril (2016). Geophysical fluids from different data sources, geomagnetic jerks, and their impact on Earth´s orientation, Acta Geodynamica et Geomaterialia, 3 (13), 241-247, 10.13168/AGG.2016.0005. Title: Geophysical fluids from different data sources, geomagnetic jerks, and their affect on Earth´s orientation Type: Journal article Publication: Acta Geodynamica et Geomaterialia Author(s): Vondrák, Jan ; Ron, Cyril Year: 2016 Formatted Citation: Vondrák, J., and C. Ron, 2016 : geophysical fluids from different data sources, geomagnetic jerks, and their impingement on Earth´s orientation. Acta Geodynamica et Geomaterialia, 13 ( 3 ), 241-247, doi:10.13168/AGG.2016.0005 Abstract: recently we studied the effects of geophysical fluids ( air, oceans ) and geomagnetic jerks in Earth ‘s orientation in space ( Vondrak and Ron, 2010 ; Ron and Vondrak, 2011 ). To this end, we used the american NCEP/NCAR model of the atmosphere and ECCO model of the oceans ( Vondrak and Ron, 2015 ). here we concentrate on early available models of geophysical fluids, such as ERA and MERRA for the atmosphere, and OMCT for the oceans, and compare the results obtained with all of them. We besides test the conjectural effect of geomagnetic jerks together with these alternative models and study how much the agreement with the observe Earth Orientation Parameters is improved. By using numeral consolidation of all five Earth orientation parameters, we demonstrate that unlike models of atmospheric/oceanic excitations lead to slightly different results, fitting relatively well with their note values but showing changes both in amplitude and phase. In all cases the agreement improves well when the effect of geomagnetic jerks is added to geophysical fluids, and the differences in amplitude/phase about vanish. Keywords: ECCO Products Used: ECCO-KFS URL: Other URLs:
Abernathey, Ryan P; Cerovecki, Ivana; Holland, Paul R; Newsom, Emily; Mazloff, Matt; Talley, Lynne D (2016). Water-mass transformation by sea ice in the upper branch of the Southern Ocean overturning, Nature Geoscience, 8 (9), 596-601, 10.1038/ngeo2749. Title: Water-mass transformation by sea ice in the upper arm of the Southern Ocean overturning Type: Journal article Publication: Nature Geoscience Author(s): Abernathey, Ryan P ; Cerovecki, Ivana ; Holland, Paul R ; Newsom, Emily ; Mazloff, Matt ; Talley, Lynne D Year: 2016 Formatted Citation: Abernathey, R. P., I. Cerovecki, P. R. Holland, E. Newsom, M. Mazloff, and L. D. Talley, 2016 : Water-mass transformation by sea internal-combustion engine in the upper branch of the Southern Ocean overturning. nature Geoscience, 9 ( 8 ), 596-601, doi:10.1038/ngeo2749 Abstract: n/a Keywords: ECCO Products Used: SOSEURL: http://dx.doi.org/10.1038/ngeo2749 Other URLs: hypertext transfer protocol : //www.nature.com/articles/ngeo2749
Nie, Xunwei; Gao, Shan; Wang, Fan; Qu, Tangdong (2016). Subduction of North Pacific Tropical Water and its equatorward pathways as shown by a simulated passive tracer, Journal of Geophysical Research: Oceans, 12 (121), 8770-8786, 10.1002/2016JC012305. Title: Subduction of North Pacific Tropical Water and its equatorward pathways as shown by a model passive tracer Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Nie, Xunwei ; Gao, Shan ; Wang, Fan ; Qu, Tangdong Year: 2016 Formatted Citation: Nie, X., S. Gao, F. Wang, and T. Qu, 2016 : subduction of North Pacific Tropical Water and its equatorward pathways as shown by a model passive tracer. J. Geophys. Res. Ocean., 121 ( 12 ), 8770-8786, doi:10.1002/2016JC012305 Abstract: This study investigates the subduction of South Pacific Tropical Water ( SPTW ) and its equatorward pathways using a simulate passive tracer of the consortium Estimating the Circulation & Climate of the Ocean ( ECCO ). The results show that approximately 5.8 Sv ( 1 Sv [ 106m3 s-1 ) of the SPTW is formed in the subtropical South Pacific Ocean within the concentration range between 24.0 and 25.0 kgm-3, of which about 87 % is due to vertical pump and 13 % is ascribable to lateral evocation, comparing sanely well with estimates from climatological data. once subducted, most SPTW spreads in the subtropical South Pacific. Because of the presence of shuffle, some fortune of the body of water is transformed, and its tracer-weighted density steadily increases from an initial value of 24.4 to about 25.0 kgm-3 after 13 years of consolidation. approximately 42 % of the water makes its direction into the equatorial Pacific, either through the western limit or inside pathway. The two equatorward pathways are basically of equal importance. A big ( ~70 % ) dowry of the SPTW entering the equatorial region resurfaces in the cardinal equatorial Pacific. The electric potential impacts of the resurfacing SPTW on the equatorial thermocline and surface stratification are discussed. © 2013 american Meteorological Society. Keywords: 4255 Numerical model, 4283 Water masses, 4572 Upper ocean and interracial layer processes, 4576 western boundary currents, North Pacific Tropical Water, mix, pathway, resurface, subduction ECCO Products Used: ECCO-KFSURL: http://dx.doi.org/10.1002/2016JC012305 Other URLs: hypertext transfer protocol : //doi.org/10.1002/2016JC012305
D’Addezio, Joseph Matthew (2016). Utilization Of Satellite-Derived Salinity To Study Indian Ocean Climate Variability. Title: Utilization Of Satellite-Derived Salinity To Study Indian Ocean Climate Variability Type: thesis Publication: Author(s): D’Addezio, Joseph Matthew Year: 2016 Formatted Citation: D’Addezio, J. M., 2016 : use Of Satellite-Derived Salinity To Study Indian Ocean Climate Variability. hypertext transfer protocol : //scholarcommons.sc.edu/etd/3772/. Abstract: Keywords: ECCO Products Used: ECCO2URL: https://scholarcommons.sc.edu/etd/3772/ Other URLs:
(2016). Frontiers in Decadal Climate Variability. Title: Frontiers in Decadal Climate Variability Type: Book Publication: Author(s): Year: 2016 Formatted Citation: Purcell, A., and N. Huddleston 2016 : Frontiers in Decadal Climate Variability. National Academies Press, Washington, D.C. doi:10.17226/23552. Abstract: Keywords: ECCO Products Used: ECCO-V4URL: http://www.nap.edu/catalog/23552 Other URLs:
Rocha, Cesar B; Chereskin, Teresa K; Gille, Sarah T; Menemenlis, Dimitris (2016). Mesoscale to Submesoscale Wavenumber Spectra in Drake Passage, Journal of Physical Oceanography, 2 (46), 601-620, 10.1175/JPO-D-15-0087.1. Title: Mesoscale to Submesoscale Wavenumber Spectra in Drake passage Type: Journal article Publication: Journal of Physical Oceanography Author(s): Rocha, Cesar B ; Chereskin, Teresa K ; Gille, Sarah T ; Menemenlis, Dimitris Year: 2016 Formatted Citation: Rocha, C. B., T. K. Chereskin, S. T. Gille, and D. Menemenlis, 2016 : Mesoscale to Submesoscale Wavenumber Spectra in Drake Passage. Journal of Physical Oceanography, 46 ( 2 ), 601-620, doi:10.1175/JPO-D-15-0087.1 Abstract: This learn discusses the upper-ocean ( 0-200 thousand ) horizontal wavenumber spectrum in the Drake passage from 13 year of shipboard ADCP measurements, altimeter data, and a high-resolution numerical pretense. At scales between 10 and 200 kilometer, the ADCP kinetic energy spectrum approximately follow a k−3 baron jurisprudence. The ascertained flows are more energetic at the surface, but the condition of the kinetic energy spectrum is freelancer of astuteness. These characteristics resemble predictions of isotropic inside quasigeostrophic turbulence. The proportion of across-track to along-track energizing department of energy spectrum, however, significantly departs from the expectation of isotropic inside quasigeostrophic turbulence. The inconsistency is dramatic at scales smaller than 40 kilometer. A Helmholtz decomposition of the ADCP spectrum and analyses of celluloid and numeric exemplary data show that horizontally divergent, ageostrophic flows account for the discrepancy between the respect spectrum and predictions of isotropic department of the interior quasigeostrophic turbulence. In Drake Passage, ageostrophic motions appear to be dominated by inertia-gravity waves and score for about one-half of the near-surface kinetic department of energy at scales between 10 and 40 kilometer. Model results indicate that ageostrophic flows imprint on the sea surface, accountancy for about half of the ocean surface height variance between 10 and 40 kilometer. Keywords: Atm/Ocean Structure/ Phenomena, Eddies, Observational techniques and algorithm, Oceanic mixed level, Satellite observations, Ship observations, Tides ECCO Products Used: ECCO2 ; LLC_hiresURL: http://journals.ametsoc.org/doi/abs/10.1175/JPO-D-15-0087.1 Other URLs:
Hughes, Chris W.; Williams, Joanne; Hibbert, Angela; Boening, Carmen; Oram, James (2016). A Rossby whistle: A resonant basin mode observed in the Caribbean Sea, Geophysical Research Letters, 13 (43), 7036-7043, 10.1002/2016GL069573. Title: A Rossby whistle : A evocative river basin mood observed in the Caribbean Sea Type: Journal article Publication: Geophysical Research Letters Author(s): Hughes, Chris W. ; Williams, Joanne ; Hibbert, Angela ; Boening, Carmen ; Oram, James Year: 2016 Formatted Citation: Hughes, C. W., J. Williams, A. Hibbert, C. Boening, and J. Oram, 2016 : A Rossby whistle : A evocative basin modality observed in the Caribbean Sea. Geophys. Res. Lett., 43 ( 13 ), 7036-7043, doi:10.1002/2016GL069573 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2016GL069573 Other URLs:
Yang, Qinghua; Losch, Martin; Losa, Svetlana N.; Jung, Thomas; Nerger, Lars; Lavergne, Thomas (2016). Brief communication: The challenge and benefit of using sea ice concentration satellite data products with uncertainty estimates in summer sea ice data assimilation, The Cryosphere, 2 (10), 761-774, 10.5194/tc-10-761-2016. Title: Brief communication : The challenge and profit of using sea methamphetamine concentration satellite data products with doubt estimates in summer ocean ice data acculturation Type: Journal article Publication: The Cryosphere Author(s): Yang, Qinghua ; Losch, Martin ; Losa, Svetlana N. ; Jung, Thomas ; Nerger, Lars ; Lavergne, Thomas Year: 2016 Formatted Citation: Yang, Q., M. Losch, S. N. Losa, T. Jung, L. Nerger, and T. Lavergne, 2016 : abbreviated communication : The challenge and benefit of using sea ice rink concentration satellite data products with uncertainty estimates in summer sea ice data assimilation. Cryosph., 10 ( 2 ), 761-774, doi:10.5194/tc-10-761-2016 Abstract: Data assimilation experiments that aim at improving summer ice concentration and thickness forecasts in the Arctic are carried out. The datum acculturation system used is based on the MIT general circulation model ( MITgcm ) and a local curious evolutive interpolated Kalman ( LSEIK ) percolate. The effect of using sea ice concentration satellite data products with appropriate doubt estimates is assessed by three different experiments using ocean ice rink concentration data of the european Space Agency Sea Ice Climate Change Initiative ( ESA SICCI ) which are provided with a per-grid-cell physically based ocean ice concentration doubt estimate. The inaugural experiment uses the constant doubt, the second one imposes the provide SICCI uncertainty estimate, while the third experiment employs an raise minimal uncertainty to account for a representation mistake. Using the observation uncertainties that are provided with the data improves the ensemble think of prognosis of methamphetamine concentration compared to using changeless datum errors, but the thickness calculate, based on the sparsely available data, appears to be degraded. Further investigating this miss of positive impact on the sea ice rink thicknesses leads us to a fundamental mismatch between the satellite-based radiometric concentration and the model physical internal-combustion engine concentration in summer : the passive voice microwave sensors used for deriving the huge majority of the sea frost concentration satellite-based observations can not distinguish ocean water ( in leads ) from melt urine ( in ponds ). New data assimilation methodologies that in full account or mitigate this mismatch must be designed for successful assimilation of sea ice concentration satellite data in summer melt conditions. In our analyze, thickness forecasts can be slightly improved by adopting the pragmatic solution of raising the minimum notice uncertainty to inflate the data error and corps de ballet spread. Keywords: ECCO Products Used: ECCO2URL: https://www.the-cryosphere.net/10/761/2016/ Other URLs:
Schodlok, M P; Menemenlis, Dimitris; Rignot, E J (2016). Ice shelf basal melt rates around Antarctica from simulations and observations, Journal of Geophysical Research: Oceans, 2 (121), 1085-1109, 10.1002/2015JC011117. Title: Ice shelf basal dissolve rates around Antarctica from simulations and observations Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Schodlok, M P ; Menemenlis, Dimitris ; Rignot, E J Year: 2016 Formatted Citation: Schodlok, M. P., D. Menemenlis, and E. J. Rignot, 2016 : Ice shelf basal fade rates around Antarctica from simulations and observations. J. Geophys. Res. Ocean., 121 ( 2 ), 1085-1109, doi:10.1002/2015JC011117 Abstract: We introduce an explicit representation of Antarctic ice rink shelf cavities in the Estimating the Circulation and Climate of the Ocean, Phase II ( ECCO2 ) ocean retrospective analysis ; and compare resulting radical mellow rates and patterns to mugwump estimates from satellite observations. Two simulations are carried out : the first is based on the original ECCO2 upright discretization ; the moment has higher upright resolution particularly at the depth image of ice rink ledge cavities. The original ECCO2 vertical discretization produces higher than observed mellow rates and leads to a misrepresentation of Southern Ocean body of water mass properties and transports. In general, thick levels at the base of the internal-combustion engine shelves lead to increased dissolve because of their larger heat capacity. This strengthens horizontal gradients and circulation within and outside the cavities and, in turn, warm water transports from the shelf violate to the ice shelves. The simulation with more upright levels produces basal fade rates ( 1735 ± 164 Gt/a ) and patterns that are in better agreement with observations. Thinner levels in the sub-ice-shelf cavities improve the representation of a fresh/cold layer at the ice shelf base and of warm/salty water system near the bottom, leading to a sharper pycnocline and reduce erect mix underneath the ice shelf. improved water column properties lead to more accurate melt rates and patterns, specially for melt/freeze patterns under bombastic cold-water ice shelves. At the 18 kilometer grid spacing of the ECCO2 exemplar configuration, the smaller, warm-water ice shelves can not be by rights represented, with higher than observed thaw rates in both simulations. Keywords: 0728 Ice shelves, 4219 Continental ledge and gradient processes, 4255 Numerical model, Antarctica, Southern Ocean, ice shelf radical melt, frost ledge ocean interaction, numeral model ECCO Products Used: ECCO2 ; IceSheetURL: http://dx.doi.org/10.1002/2015JC011117 Other URLs:
Rocha, Cesar B; Gille, Sarah T; Chereskin, Teresa K; Menemenlis, Dimitris (2016). Seasonality of submesoscale dynamics in the Kuroshio Extension, Geophys. Res. Lett., 21 (43), 11304-11311, 10.1002/2016GL071349. Title: Seasonality of submesoscale dynamics in the Kuroshio Extension Type: Journal article Publication: Geophys. Res. Lett. Author(s): Rocha, Cesar B ; Gille, Sarah T ; Chereskin, Teresa K ; Menemenlis, Dimitris Year: 2016 Formatted Citation: Rocha, C. B., S. T. Gille, T. K. Chereskin, and D. Menemenlis, 2016 : Seasonality of submesoscale dynamics in the Kuroshio Extension. Geophys. Res. Lett., 43 ( 21 ), 11304-11311, doi:10.1002/2016GL071349 Abstract: Recent studies show that the vigorous seasonal cycle of the mix layer modulates upper ocean submesoscale turbulence. here we provide model-based evidence that the seasonally changing upper ocean stratification in the Kuroshio Extension besides modulates submesoscale ( here 10-100 km ) inertia-gravity waves. Summertime restratification weakens submesoscale turbulence but enhances inertia-gravity waves near the surface. frankincense, submesoscale turbulence and inertia-gravity waves undergo vigorous out-of-phase seasonal worker cycles. These results imply a solid seasonal worker transition of the accuracy of geostrophic speed diagnosed from submesoscale sea surface height delivered by the SurfaceWater and Ocean Topography satellite mission. Keywords: COMPIRA, Kuroshio Extension, LLC4320, SWOT, inertia-gravity waves, submesoscale dynamics, submesoscale turbulence ECCO Products Used: ECCO2 ; LLC_hires URL: Other URLs:
Sallée, J.-B.; Mazloff, M; Meredith, M P; Hughes, C W; Rintoul, S; Gomez, R; Metzl, N; Monaco, C Lo; Schmidtko, S; Mata, M M; W\r ahlin, A; Swart, S; Williams, M J M; Naveria-Garabata, A C; Monteiro, P (2016). Southern Ocean in State of the Climate in 2015, Bull. Amer. Meteor. Soc. (97), S166-S168. Title: Southern Ocean in State of the Climate in 2015 Type: Journal article Publication: Bull. Amer. Meteor. Soc. Author(s): Sallée, J.-B. ; Mazloff, M ; Meredith, M P ; Hughes, C W ; Rintoul, S ; Gomez, R ; Metzl, N ; Monaco, C Lo ; Schmidtko, S ; Mata, M M ; W\r ahlin, A ; Swart, S ; Williams, M J M ; Naveria-Garabata, A C ; Monteiro, P Year: 2016 Formatted Citation: Sallée, J. and Coauthors, 2016 : southerly Ocean in State of the Climate in 2015. Bull. Amer. Meteor. Soc., 97, S166-S168 Abstract: Keywords: ECCO Products Used: SOSE URL: Other URLs:
Liu, Junjie; Bowman, Kevin W.; Lee, Meemong (2016). Comparison between the Local Ensemble Transform Kalman Filter (LETKF) and 4D-Var in atmospheric CO 2 flux inversion with the Goddard Earth Observing System-Chem model and the observation impact diagnostics from the LETKF, Journal of Geophysical Research: Atmospheres, 21 (121), 13,066-13,087, 10.1002/2016JD025100. Title: Comparison between the Local Ensemble Transform Kalman Filter ( LETKF ) and 4D-Var in atmospheric CO 2 blend inversion with the Goddard Earth Observing System-Chem model and the observation affect diagnostics from the LETKF Type: Journal article Publication: Journal of Geophysical Research : Atmospheres Author(s): Liu, Junjie ; Bowman, Kevin W. ; Lee, Meemong Year: 2016 Formatted Citation: Liu, J., K. W. Bowman, and M. Lee, 2016 : comparison between the Local Ensemble Transform Kalman Filter ( LETKF ) and 4D-Var in atmospheric CO 2 blend anastrophe with the Goddard Earth Observing System-Chem exemplary and the observation shock diagnostics from the LETKF. Journal of Geophysical Research : Atmospheres, 121 ( 21 ), 13,066-13,087, doi:10.1002/2016JD025100 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2016JD025100 Other URLs:
Jönsson, Bror F.; Watson, James R. (2016). The timescales of global surface-ocean connectivity, Nature Communications, 1 (7), 11239, 10.1038/ncomms11239. Title: The timescales of global surface-ocean connectivity Type: Journal article Publication: Nature Communications Author(s): Jönsson, Bror F. ; Watson, James R. Year: 2016 Formatted Citation: Jönsson, B. F., and J. R. Watson, 2016 : The timescales of ball-shaped surface-ocean connectivity. nature Communications, 7 ( 1 ), 11239, doi:10.1038/ncomms11239 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://www.nature.com/articles/ncomms11239 Other URLs:
Chowdary, Jasti; Srinivas, G.; Fousiya, T.S.; Parekh, Anant; Gnanaseelan, C.; Seo, Hyodae; MacKinnon, Jennifer (2016). Representation of Bay of Bengal Upper-Ocean Salinity in General Circulation Models, Oceanography, 2 (29), 38-49, 10.5670/oceanog.2016.37. Title: Representation of Bay of Bengal Upper-Ocean Salinity in General Circulation Models Type: Journal article Publication: oceanography Author(s): Chowdary, Jasti ; Srinivas, G. ; Fousiya, T.S. ; Parekh, Anant ; Gnanaseelan, C. ; Seo, Hyodae ; MacKinnon, Jennifer Year: 2016 Formatted Citation: Chowdary, J., G. Srinivas, T. Fousiya, A. Parekh, C. Gnanaseelan, H. Seo, and J. MacKinnon, 2016 : representation of Bay of Bengal Upper-Ocean Salinity in General Circulation Models. Oceanography, 29 ( 2 ), 38-49, doi:10.5670/oceanog.2016.37 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://tos.org/oceanography/article/representation-of-bay-of-bengal-upper-ocean-salinity-in-general-circulation Other URLs:
Su, Zhan (2016). High-Latitude Ocean Convection and Gyre Dynamics. Title: High-Latitude Ocean Convection and Gyre Dynamics Type: dissertation Publication: Author(s): Su, Zhan Year: 2016 Formatted Citation: Su, Z., 2016 : High-Latitude Ocean Convection and Gyre Dynamics., 278 pp. doi:10.7907/Z9H12ZZ3. Abstract: High-latitude ocean deep convection well contributes to vertical mix, ver- baht heat ecstasy, deep-water geological formation, and sea-ice budget in the World Ocean. however, the extent of this contribution remains ill constrained. The concept of ocean convective available potential energy ( OCAPE ) is developed to improve the un- derstanding and the prediction for these abstruse convection events. The energizing energy ( KE ) budget of deep convection is explored analytically and numerically based on the observations in the Weddell Sea. OCAPE, which is derived from thermobaricity, is identified as a critical KE generator to might ocean cryptic convection. other significant contributions to the energetics of convection, including diabatic processes related to cabbeling and stratification are besides carefully quantified. An associate hypothesis is de- veloped to predict the maximum astuteness of convection. This study may provide a utilitarian footing for improving the convection parameterization in ocean models. As an lotion of the theory above, basin-scale OCAPE is found to be signifi- cantly built up in North Atlantic at the conclusion of Heinrich Stadial 1 ( ∼17,000 years ago ). This OCAPE is ultimately released to power strong ocean deeply convection in North Atlantic as simulated by numeric models. This causes a ∼2 o C ocean surface warming for the unharmed basin ( ∼700 kilometer ) within a month and exposes a huge inflame reservoir to the air. This may invigorate the Atlantic meridional overturning circu- lation and provides an crucial mechanism to explain the abrupt Bolling-Allerod warm. Mesoscale turbulence is another crucial action for high-latitude ocean dynam- ics. From the physical nature of baroclinic instability, the framework of eddy-size- constrained available Potential Energy ( APE ) concentration is developed, which is capable of good detecting individual eddies and local anesthetic eddy kinetic department of energy ( EKE ) in the World Ocean. This new framework is likely useful in parameterizing mesoscale eddies in ocean GCMs. Mesoscale turbulence are found to be coupled to the wind-driven Ek- valet pumping in determining the temperature and salt budgets in subpolar gyres such as the Weddell Gyre. Topography is shown to be another all-important moral force factor that modulates the electric potential vorticity budget and hence strongly influences the strati- fication of subpolar gyres. Considering these factors, a physical model is developed to predict the observe temperature and brininess unevenness around the Antarctic mar- gins. This model is useful for understanding and predicting the export of Antarctic Bottom Water and therefore the associated high-latitude ocean enchant of heat, salt and nutrients. Keywords: ECCO Products Used: ECCO2 URL: Other URLs:
Pemberton, P.; Nilsson, J. (2016). The response of the central Arctic Ocean stratification to freshwater perturbations, Journal of Geophysical Research: Oceans, 1 (121), 792-817, 10.1002/2015JC011003. Title: The reply of the central Arctic Ocean stratification to freshwater perturbations Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Pemberton, P. ; Nilsson, J. Year: 2016 Formatted Citation: Pemberton, P., and J. Nilsson, 2016 : The response of the cardinal Arctic Ocean stratification to freshwater perturbations. J. Geophys. Res. Ocean., 121 ( 1 ), 792-817, doi:10.1002/2015JC011003 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2015JC011003 Other URLs:
Wineteer, Alexander Grant (2016). Towards Improved Estimates of Upper Ocean Energetics. Title: Towards Improved Estimates of Upper Ocean Energetics Type: thesis Publication: Author(s): Wineteer, Alexander Grant Year: 2016 Formatted Citation: Wineteer, A. G., 2016 : Towards Improved Estimates of Upper Ocean Energetics., San Luis Obispo, California, 67 pp. doi:10.15368/theses.2016.19. Abstract: The energy exchanged between the atmosphere and the ocean is an important parameter in understanding the Earth ‘s climate. One way of quantifying this energy substitution is through the practice of “ wind work, ” or the work done on the ocean by the weave. Since wind study is calculated according to the interaction between ocean open currents and surface scent try, a number of surface current decompositions can be used to decompose weave work calculations. In this inquiry, geostrophic, ageostrophic, Ekman, and entire stream decompositions are all used to calculate wind bring. Geostrophic currents are formed by the remainder of open coerce gradients and the Coriolis impression. Ageostrophic currents, on the early bridge player, are difficult to calculate because they are made up of many types of currents, and are by and large defined as any current not in geostrophic proportion. The main part of ageostrophic currents, Ekman currents, are used in this work to approximate ageostrophic currents. ekman currents are formed by the balance of come on wind stress and the Coriolis effect. last, entire currents are the sum of all currents in the ocean. Using high gear resolution, ball-shaped NASA ocean models, the tip function on the ball-shaped oceans is estimated via a number of decompositions, with results finding about 3.2 TW, .32 TW, and 3.05 TW for total, geostrophic, and Ekman wind exploit respectively, when taking a 7 day window average of coat currents and a 1 day average of surface stress. Averaging period for currents is found to importantly affect the resulting forecast wind work, with greater than 50 percentage difference between 1 and 15 days of averaging. Looking at the like entire, geostrophic, and Ekman wind work results for 1 day averages of tip stress and surface currents finds 5.5 TW, .03 TW, and 6.3 TW respectively. This consequence indicates that high frequency currents are identical authoritative to wind ferment. seasonally, fart ferment is found to be at a maximum during the Northern Hemisphere ( NH ) summer, and at a minimal during the NH winter months. To help motivate the fund of a Doppler Scatterometer, simulations are used to show the capabilities of such an legal document in measuring wreathe work. DopplerScat simulations find that a satellite able of measuring coincident surface vector winds and surface vector currents, with 1.1 m/s wind amphetamine error and .5 m/s current speed error, could estimate ball-shaped fart solve to within 2 percentage accuracy on an 8 day median with daily ball-shaped snapshots. Keywords: ECCO Products Used: LLC_hiresURL: http://digitalcommons.calpoly.edu/theses/1566 Other URLs:
Chaudhuri, A H; Ponte, R M; Forget, G (2016). Impact of uncertainties in atmospheric boundary conditions on ocean model solutions, Ocean Modelling (100), 96-108, 10.1016/j.ocemod.2016.02.003. Title: Impact of uncertainties in atmospheric boundary conditions on ocean model solutions Type: Journal article Publication: Ocean Modelling Author(s): Chaudhuri, A H ; Ponte, R M ; Forget, G Year: 2016 Formatted Citation: Chaudhuri, A. H., R. M. Ponte, and G. Forget, 2016 : affect of uncertainties in atmospheric limit conditions on ocean model solutions. Ocean Modelling, 100, 96-108, doi:10.1016/j.ocemod.2016.02.003 Abstract: We quantify differences in ocean model simulations derived entirely from atmospheric uncertainties and investigate how they relate to overall model errors as inferred from comparisons with data. For this function, we use a ball-shaped shape of the MITgcm to simulate 4 ocean solutions for 2000-2009 using 4 reanalysis products ( JRA-25, MERRA, CFSR and ERA-Interim ) as atmospheric force. The simulations are compared against observations and against each early for selected variables ( temperature, low-lying, sea-ice, streamfunctions, meridional heat and fresh water transports ). Forcing-induced differences are comparable in order of magnitude to model-observation misfits for most near-surface variables in the tropics and sub-tropics, but typically smaller at higher latitudes and pivotal regions. Forcing-derived differences are expectedly largest near the surface and by and large limited to the amphetamine 1000 thousand but can besides be seen deoxyadenosine monophosphate deep as 4000 thousand, specially in regions of deep water formation. Errors are not necessarily local in nature and can be advected to different basins. Results indicate that while forcing adjustments might suffice in optimization procedures of near-surface fields and at low-to-mid latitudes, other control parameters are probable needed elsewhere. Forcing-induced differences can be dominated by big spatial scales and specific time scales ( e.g. annual ), and thus allow error covariances in outer space and time motivation to be considered in optimization methodologies. ( C ) 2016 Elsevier Ltd. All rights reserved. Keywords: Atmospheric doubt, Global ocean model, Reanalysis, arctic-ocean, atlantic, equatorial pacific, era-interim, fluxes, general-circulation mannequin, reanalysis, sea-ice, simulations, surface ECCO Products Used: ECCO-V4 URL: Other URLs:
Scharffenberg, Martin G; Köhl, Armin; Stammer, Detlef (2016). Testing the Quality of Sea-Level Data Using the GECCO Adjoint Assimilation Approach, Surveys in Geophysics, 1 (38), 1-35, 10.1007/s10712-016-9401-3. Title: Testing the quality of Sea-Level Data Using the GECCO Adjoint Assimilation Approach Type: Journal article Publication: Surveys in Geophysics Author(s): Scharffenberg, Martin G ; Köhl, Armin ; Stammer, Detlef Year: 2016 Formatted Citation: Scharffenberg, M. G., A. Köhl, and D. Stammer, 2016 : Testing the quality of Sea-Level Data Using the GECCO Adjoint Assimilation Approach. Surveys in Geophysics, 38 ( 1 ), 1-35, doi:10.1007/s10712-016-9401-3 Abstract: Besides providing an estimate of the changing ocean state, an significant resultant role of the dynamically consistent estimating the circulation and climate of the ocean ( ECCO ) state calculate approach is the planning of a buttocks model-data residuals which contain significant data about elements in the assimilate observations that are inconsistent with the model dynamics or with the information present in other ocean data sets that are being used as constraints in the assimilation procedure. Based on decrease GECCO2 model-data residuals, upon using the altimeter data through the ESA climate change enterprise ( cci ) low-lying ( SL ) project, we show here that the recently reprocessed ESA SL_cci altimeter data set ( SL1 ) has been improved relative to the earlier AVISO altimetry data set and is nowadays more consistent with the GECCO2 estimate and with the information about the changing ocean state embedded in other ocean data sets. The improvement can be shown to exist individually for both TOPEX/POSEIDON and ERS data sets. The study reveals that specially in regions characterized by little sea come on stature ( SSH ) unevenness and minor signal-to-noise ratio ratio in the SSH data, improvements can be on the rate of 30 % of previously existing model-data residuals. however, in some regions we can find degradations, particulary in those where GECCO2 has little skill in representing the altimeter data and where evaluation of the products with GECCO2 is frankincense not advisable. Upon the assimilation of the new SL1 datum set, the GECCO2 synthesis was further improved. however, adding the sea surface temperature ( SST ) from the SST_cci project as extra restrain, no far shock can be identified. Keywords: ECCO Products Used: GECCO2URL: http://dx.doi.org/10.1007/s10712-016-9401-3 Other URLs: hypertext transfer protocol : //doi.org/10.1007/s10712-016-9401-3
Piecuch, Christopher G; Dangendorf, Sönke; Ponte, Rui M; Marcos, Marta (2016). Annual Sea Level Changes on the North American Northeast Coast: Influence of Local Winds and Barotropic Motions, Journal of Climate, 13 (29), 4801-4816, 10.1175/JCLI-D-16-0048.1. Title: Annual Sea Level Changes on the north american Northeast Coast : influence of Local Winds and Barotropic Motions Type: Journal article Publication: Journal of Climate Author(s): Piecuch, Christopher G ; Dangendorf, Sönke ; Ponte, Rui M ; Marcos, Marta Year: 2016 Formatted Citation: Piecuch, C. G., S. Dangendorf, R. M. Ponte, and M. Marcos, 2016 : annual Sea Level Changes on the north american english Northeast Coast : charm of Local Winds and Barotropic Motions. J. Clim., 29 ( 13 ), 4801-4816, doi:10.1175/JCLI-D-16-0048.1 Abstract: Understanding the relationship between coastal sea level and the variable ocean circulation is all-important for interpreting tide bore records and projecting sea flat raise. In this study, annual sea level records ( adjusted for the turn back barometer effect ) from tide gauges along the north american northeast coast over 1980-2010 are compared to a typeset of data-assimilating ocean reanalysis products angstrom well as a ball-shaped barotropic model solution forced with wind stress and barometric atmospheric pressure. parallelism between models and data depends powerfully on model and localization. At sites north of Cape Hatteras, the barotropic mannequin shows arsenic much ( if not more ) skill than ocean reanalyses, explaining about 50 % of the variance in the adjusted annual tide gauge ocean degree records. Additional numeric experiments show that annual ocean tied changes along this coast from the barotropic exemplar are driven by local anesthetic wind stress over the continental ledge and slope. This result is interpreted in the light of a simpleton dynamic model, wherein bottomland friction balances surface wind stress in the alongshore direction and geostrophy holds in the across-shore direction. Results highlight the importance of barotropic dynamics on coastal sea degree changes on interannual and decadal time scales ; they besides have implications for diagnosing the uncertainties in current ocean reanalyses, using tide estimate records to infer past changes in ocean circulation, and identifying the physical mechanism responsible for project future regional sea level advance. Keywords: Atm/Ocean Structure/ Phenomena, Barotropic flows, Circulation/ Dynamics, Decadal variability, Geographic location/entity, Interannual variability, North Atlantic Ocean, Ocean dynamics, Sea horizontal surface, Variability ECCO Products Used: GECCO2URL: http://journals.ametsoc.org/doi/abs/10.1175/JCLI-D-16-0048.1 Other URLs:
DeVaney, Shannon C. (2016). Species Distribution Modeling of Deep Pelagic Eels, Integrative and Comparative Biology, 4 (56), 524-530, 10.1093/icb/icw032. Title: Species Distribution Modeling of Deep Pelagic Eels Type: Journal article Publication: Integrative and Comparative Biology Author(s): DeVaney, Shannon C. Year: 2016 Formatted Citation: DeVaney, S. C., 2016 : Species Distribution Modeling of Deep Pelagic Eels. Integrative and Comparative Biology, 56 ( 4 ), 524-530, doi:10.1093/icb/icw032 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://academic.oup.com/icb/article-lookup/doi/10.1093/icb/icw032 Other URLs:
Li, J.; Liu, K.; Huang, Q. (2016). Utilizing Cloud Computing to Support Scalable Atmospheric Modeling, Cloud Computing in Ocean and Atmospheric Sciences, 347-364, 10.1016/B978-0-12-803192-6.00017-7. Title: Utilizing Cloud Computing to Support Scalable Atmospheric Modeling Type: Book section Publication: Cloud Computing in Ocean and Atmospheric Sciences Author(s): Li, J. ; Liu, K. ; Huang, Q. Year: 2016 Formatted Citation: Li, J., K. Liu, and Q. Huang, 2016 : Utilizing Cloud Computing to Support Scalable Atmospheric Modeling. Cloud Computing in Ocean and Atmospheric Sciences, Elsevier, 347-364, doi:10.1016/B978-0-12-803192-6.00017-7 Abstract: Atmospheric model is an important method acting to generate physical and numeric measurements of climate parameters, quantify the spatiotemporal changes of atmospheric phenomenon over space and time, and predict their occurrences. With fake data sets from atmospheric models, scientists are able to examine the drive forces of atmospheric phenomena and perform advanced analysis. Due to the implicit in complexity and computational intensity of atmospheric models, running such models requires considerable amounts of computing resources. traditionally, high-performance supercomputers or clusters have been used to perform atmospheric model. recently, defile computing solutions are emerged as a cost-efficient access to provide on-demand calculate resources, remove the technical barriers, and reduce the high costs for computing facility management and maintenance. This chapter presents the design and execution of a cloud-based framework to facilitate atmospheric mold. The framework consists of a web portal, cloud instances, and a cloud-based datum depository. To evaluate the feasibility of the model, we have customized and deployed the serial process interpretation of ModelE onto our model. Upon the deployment, we conducted two sets of experiments to evaluate the set of obscure computing resources to support large-scale atmospheric model. experimental results demonstrate the framework provides scalable and customizable computing resources that meet the computational needs of atmospheric mold. Keywords: Atmospheric Modeling, Cloud computer science, Data management, Model evaluation, ModelE, Visualization ECCO Products Used: ECCO2URL: https://doi.org/10.1016/B978-0-12-803192-6.00017-7 Other URLs: hypertext transfer protocol : //www.sciencedirect.com/science/article/pii/B9780128031926000177, hypertext transfer protocol : //linkinghub.elsevier.com/retrieve/pii/B9780128031926000177
Bulgin, C.E.; Embury, O.; Merchant, C.J. (2016). Sampling uncertainty in gridded sea surface temperature products and Advanced Very High Resolution Radiometer (AVHRR) Global Area Coverage (GAC) data, Remote Sensing of Environment (177), 287-294, 10.1016/j.rse.2016.02.021. Title: Sampling uncertainty in gridded ocean come on temperature products and Advanced Very High Resolution Radiometer ( AVHRR ) Global Area Coverage ( GAC ) datum Type: Journal article Publication: Remote Sensing of Environment Author(s): Bulgin, C.E. ; Embury, O. ; Merchant, C.J. Year: 2016 Formatted Citation: Bulgin, C., O. Embury, and C. Merchant, 2016 : Sampling doubt in gridded sea surface temperature products and Advanced Very High Resolution Radiometer ( AVHRR ) Global Area Coverage ( GAC ) data. Remote Sensing of Environment, 177, 287-294, doi:10.1016/j.rse.2016.02.021 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://linkinghub.elsevier.com/retrieve/pii/S0034425716300499 Other URLs:
Cerovečki, Ivana; Giglio, Donata (2016). North Pacific Subtropical Mode Water Volume Decrease in 2006-09 Estimated from Argo Observations: Influence of Surface Formation and Basin-Scale Oceanic Variability, Journal of Climate, 6 (29), 2177-2199, 10.1175/JCLI-D-15-0179.1. Title: North Pacific Subtropical Mode Water volume Decrease in 2006-09 Estimated from Argo Observations : influence of Surface Formation and Basin-Scale Oceanic Variability Type: Journal article Publication: Journal of Climate Author(s): Cerovečki, Ivana ; Giglio, Donata Year: 2016 Formatted Citation: Cerovečki, I., and D. Giglio, 2016 : North Pacific Subtropical Mode Water volume Decrease in 2006-09 Estimated from Argo Observations : influence of Surface Formation and Basin-Scale Oceanic Variability. J. Clim., 29 ( 6 ), 2177-2199, doi:10.1175/JCLI-D-15-0179.1 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/10.1175/JCLI-D-15-0179.1 Other URLs:
Li, Weiwei; van Dam, Tonie; Li, Zhao; Shen, Yunzhong (2016). Annual variation detected by GPS, GRACE and loading models, Studia Geophysica et Geodaetica, 4 (60), 608-621, 10.1007/s11200-016-0205-1. Title: Annual magnetic declination detected by GPS, GRACE and load models Type: Journal article Publication: Studia Geophysica et Geodaetica Author(s): Li, Weiwei ; vanguard Dam, Tonie ; Li, Zhao ; Shen, Yunzhong Year: 2016 Formatted Citation: Li, W., T. avant-garde Dam, Z. Li, and Y. Shen, 2016 : annual pas seul detected by GPS, GRACE and loading models. Studia Geophysica et Geodaetica, 60 ( 4 ), 608-621, doi:10.1007/s11200-016-0205-1 Abstract: Most GPS align time series, airfoil displacements derived from the Gravity Recovery and Climate Experiment ( GRACE ), and loading models display meaning annual signals at many regions. This paper compares the annual signals of the GPS position fourth dimension series from the Crustal Dynamics Data Information System ( CDDIS ), estimates of loading from GRACE monthly gravity discipline models calculated by three process centers ( Center of Spatial Research, CSR ; Jet Propulsion Laboratory, JPL ; GeoForschungsZentrum, GFZ ) and three geophysical fluids models ( National Center for Environmental Prediction, NCEP ; Estimating the Circulation and Climate of the Ocean, ECCO ; Global Land Data Assimilation System, GLDAS ) for 270 globally distribute stations for the period 2003-2011. The results show that annual variations derived from the level-2 products from the three GRACE merchandise centers are identical alike. The absolute deviation in annual amplitude between any two centers is never larger than 1.25 millimeter in the upright and 0.11 millimeter in horizontal shift. The mean phase differences of the GRACE results are less than ten days for all three components. When we correct the GPS vertical align time series using the GRACE annual amplitudes using the products from three GRACE analysis centers, we find that we are able to reduce the GPS annual signal in the vertical at about 80 % stations and the median reduction is about 47 %. In the north and the east, the annual amplitude is reduced on 77 % and 72 % of the stations with the average decrease 32 % and 33 %. We besides compare the annual airfoil supplanting signal derived from two environmental models ; the two models use the lapp atmospheric and non-tidal ocean load and differ only in the continental water storage model that we use, either NCEP or GLDAS. We find that the model containing the GLDAS continental body of water memory is able to better reduce the annual bespeak in the GPS coordinate time series. Keywords: ECCO Products Used: ECCO-KFSURL: https://doi.org/10.1007/s11200-016-0205-1 Other URLs:
Hu, Shijian; Sprintall, Janet (2016). Interannual variability of the Indonesian Throughflow: The salinity effect, Journal of Geophysical Research: Oceans, 4 (121), 2596-2615, 10.1002/2015JC011495. Title: Interannual variability of the indonesian Throughflow : The salt effect Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Hu, Shijian ; Sprintall, Janet Year: 2016 Formatted Citation: Hu, S., and J. Sprintall, 2016 : Interannual variability of the indonesian Throughflow : The brininess effect. J. Geophys. Res. Ocean., 121 ( 4 ), 2596-2615, doi:10.1002/2015JC011495 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2015JC011495 Other URLs:
Bloshkina, Ekaterina Vladimirovna; Makhotin, Mikhail S.; Volkov, Denis L.; Koldunov, N. V. (2016). Comparison the Arctic Ocean the thermohaline characteristics distribution from the observed data and MITgcm model simulated data, Scientific Records of the Russian State Hydrometeorological University, 67-88. Title: Comparison the Arctic Ocean the thermohaline characteristics distribution from the observed data and MITgcm model simulated data Type: Journal article Publication: Scientific Records of the russian State Hydrometeorological University Author(s): Bloshkina, Ekaterina Vladimirovna ; Makhotin, Mikhail S. ; Volkov, Denis L. ; Koldunov, N. V. Year: 2016 Formatted Citation: Bloshkina, E. V., M. S. Makhotin, D. L. Volkov, and N. V. Koldunov, 2016 : Comparison the Arctic Ocean the thermohaline characteristics distribution from the observed data and MITgcm model simulated data. Scientific Records of the russian State Hydrometeorological University, 67-88, hypertext transfer protocol : //www.rshu.ru/university/notes/archive/issue43/uz43-67-88.pdf Abstract: here we show weekly average distribution of temperature and salt in the Arctic Ocean calculated by regional shape of the MITgcm exemplar between 2000 and 2012. Based on comparison simulated and observed data the exemplar shows close estimate of temperature and brininess vertical distribution in the Arctic Basin. Calculated depths of the Atlantic body of water are close to observed data. Modeling results show local anesthetic temperature utmost in the layer of Pacific origin urine characterised by values close to measured. Keywords: Arctic river basin, Arctic ocean, Atlantic waters, ECCO2, Pacific waters, hydrodynamic exemplary MITgcm, thermohalin characteristics, water masses ECCO Products Used: ECCO2URL: http://www.rshu.ru/university/notes/archive/issue43/uz43-67-88.pdf Other URLs:
Su, Zhan; Ingersoll, Andrew P. (2016). On the Minimum Potential Energy State and the Eddy Size-Constrained APE Density, Journal of Physical Oceanography, 9 (46), 2663-2674, 10.1175/JPO-D-16-0074.1. Title: On the Minimum Potential Energy State and the Eddy Size-Constrained APE Density Type: Journal article Publication: Journal of Physical Oceanography Author(s): Su, Zhan ; Ingersoll, Andrew P. Year: 2016 Formatted Citation: Su, Z., and A. P. Ingersoll, 2016 : On the Minimum Potential Energy State and the Eddy Size-Constrained APE Density. Journal of Physical Oceanography, 46 ( 9 ), 2663-2674, doi:10.1175/JPO-D-16-0074.1 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/10.1175/JPO-D-16-0074.1 Other URLs:
Yang, Qingxuan; Zhao, Wei; Liang, Xinfeng; Tian, Jiwei (2016). Three-Dimensional Distribution of Turbulent Mixing in the South China Sea*, Journal of Physical Oceanography, 3 (46), 769-788, 10.1175/JPO-D-14-0220.1. Title: cubic distribution of Turbulent Mixing in the South China Sea* Type: Journal article Publication: Journal of Physical Oceanography Author(s): Yang, Qingxuan ; Zhao, Wei ; Liang, Xinfeng ; Tian, Jiwei Year: 2016 Formatted Citation: Yang, Q., W. Zhao, X. Liang, and J. Tian, 2016 : three-dimensional Distribution of Turbulent Mixing in the South China Sea*. Journal of Physical Oceanography, 46 ( 3 ), 769-788, doi:10.1175/JPO-D-14-0220.1 Abstract: A three-dimensional distribution of churning mix in the South China Sea ( SCS ) is obtained for the first time, using the Gregg-Henyey-Polzin parameterization and hydrographic observations from 2005 to 2012. Results indicate that churning mixing by and large increases with depth in the SCS, reaching the rate of 10−2 m2 s−1 at depth. In the horizontal steering, turbulence is more active in the northerly SCS than in the south and is more active in the east than the west. Two mixing “ hotspots ” are identified in the bottom water of the Luzon Strait and Zhongsha Island Chain area, where diapycnal diffusivity values are around 3 × 10−2 m2 s−1. potential mechanism responsible for these spatial patterns are discussed, which include internal tide, bottom bathymetry, and near-inertial energy. Keywords: ECCO Products Used: ECCO-V4URL: https://journals.ametsoc.org/jpo/article/46/3/769/45033/ThreeDimensional-Distribution-of-Turbulent-Mixing Other URLs:
Chen, Ru; Thompson, Andrew F.; Flierl, Glenn R. (2016). Time-Dependent Eddy-Mean Energy Diagrams and Their Application to the Ocean, Journal of Physical Oceanography, 9 (46), 2827-2850, 10.1175/JPO-D-16-0012.1. Title: Time-Dependent Eddy-Mean Energy Diagrams and Their Application to the Ocean Type: Journal article Publication: Journal of Physical Oceanography Author(s): Chen, Ru ; Thompson, Andrew F. ; Flierl, Glenn R. Year: 2016 Formatted Citation: Chen, R., A. F. Thompson, and G. R. Flierl, 2016 : Time-Dependent Eddy-Mean Energy Diagrams and Their Application to the Ocean. Journal of Physical Oceanography, 46 ( 9 ), 2827-2850, doi:10.1175/JPO-D-16-0012.1 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/10.1175/JPO-D-16-0012.1 Other URLs:
Bloshkina, Ekaterina Vladimirovna; Ivanov, Vladimir Vladimirovich (2016). Convective structures in the Norwegian and Greenland Seas according to results of modeling with a high spatial resolution, Works of Hydrometeorological Research Center of the Russian Federation, 361, 146-168. Title: Convective structures in the norwegian and Greenland Seas according to results of modeling with a high spatial resoluteness Type: Journal article Publication: Works of Hydrometeorological Research Center of the russian confederation Author(s): Bloshkina, Ekaterina Vladimirovna ; Ivanov, Vladimir Vladimirovich Year: 2016 Formatted Citation: Bloshkina, E. V., and V. V. Ivanov, 2016 : Convective structures in the norwegian and Greenland Seas according to results of modeling with a high spatial resolution. Works of Hydrometeorological Research Center of the russian Federation ( 361 ), 146-168, hypertext transfer protocol : //method.meteorf.ru/publ/tr/tr361/blosh.pdf Abstract: Vertical convection is one of the most important processes, which accounts for stable hydrographic conditions in the World Ocean. In winter, cold urine descents in cyclonic gyres of the North-Eurоpean river basin [ Anna1 ] of the Arctic Ocean and in the Baffin Bay, frankincense feeding the south moving deep arm of the ball-shaped thermohaline circulation. Changes in the Arctic climate system in 1990-2000 had affected convective processes in the Nordic seas besides. alternatively of a massive penetration of surface water to a considerable depth in the Greenland Sea, as was observed in the twentieth hundred, deep mesoscale eddies like in structure to the intrapycnocline lenses in the Lofoten Basin of the norwegian Sea started to appear in observations. It is impossible to judge from precisely formal resemblance whether the physical processes leading to the constitution of anomalous structures in two deep-water North-European basins are like. A potential border on to answering this question is mathematical mold, which allows one to follow the evolution of the anomalies. The first pace on this direction is the most close to the world model reconstruction of the thermohaline water structure. The article attempts to assess whether the results of the numeral simulation with high spatial solution are adequate to observation-based features of the erect thermohaline structure in Lofoten and Greenland basins. Keywords: ECCO Products Used: ECCO2URL: http://method.meteorf.ru/publ/tr/tr361/blosh.pdf Other URLs:
Zhang, Yu; Chen, Changsheng; Beardsley, Robert C.; Gao, Guoping; Qi, Jianhua; Lin, Huichan (2016). Seasonal and interannual variability of the Arctic sea ice: A comparison between AO-FVCOM and observations, Journal of Geophysical Research: Oceans, 11 (121), 8320-8350, 10.1002/2016JC011841. Title: Seasonal and interannual unevenness of the Arctic sea internal-combustion engine : A comparison between AO-FVCOM and observations Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Zhang, Yu ; Chen, Changsheng ; Beardsley, Robert C. ; Gao, Guoping ; Qi, Jianhua ; Lin, Huichan Year: 2016 Formatted Citation: Zhang, Y., C. Chen, R. C. Beardsley, G. Gao, J. Qi, and H. Lin, 2016 : seasonal worker and interannual variability of the Arctic ocean ice rink : A comparison between AO-FVCOM and observations. J. Geophys. Res. Ocean., 121 ( 11 ), 8320-8350, doi:10.1002/2016JC011841 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2016JC011841 Other URLs:
Amrhein, Daniel E. (2016). Inferring ocean circulation during the Last Glacial Maximum and last deglaciation using data and models, Inferring ocean circulation during the Last Glacial Maximum and last deglaciation using data and models, 192, 10.1575/1912/8428. Title: Inferring ocean circulation during the concluding Glacial Maximum and end deglaciation using data and models Type: dissertation Publication: Inferring ocean circulation during the last Glacial Maximum and last deglaciation using data and models Author(s): Amrhein, Daniel E. Year: 2016 Formatted Citation: Amrhein, D. E., 2016 : Inferring ocean circulation during the end Glacial Maximum and concluding deglaciation using data and models. Inferring ocean circulation during the death Glacial Maximum and last deglaciation using data and models Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, Woods Hole, MA, 192 pp. doi:10.1575/1912/8428. Abstract: Since the stopping point Glacial Maximum ( LGM, ∼ 20, 000 years ago ) atmosphere temperatures warmed, sea floor rose approximately 130 meters, and atmospheric concentrations of carbon dioxide increased. This dissertation combines ball-shaped models and paleoceanographic observations to con- filter the ocean ‘s role in storing and transporting heat, salt, and other tracers during this time, with implications for understanding how the modern ocean works and how it might change in the future. • By combining a kinematic ocean model with “ upstream ” and “ downriver ” deglacial oxygen isotope time series from benthic and planktonic foraminifera, I show that the data are in agreement with the modern circulation, quantify their might to infer circu- lation changes, and propose newfangled data locations. • An ocean general circulation model ( the MITgcm ) constrained to fit LGM sea surface temperature proxy observations reveals colder ocean temperatures, greater ocean ice ex- camp, and changes in ocean mix layer depth, and suggests that some features in the data are not robust. • A sensitivity analysis in the MITgcm demonstrates that changes in winds or in ocean churning transportation can explain the hypothesis that the boundary between deep At- lantic waters originating from Northern and Southern Hemispheres was shallower at the LGM than it is nowadays. Keywords: ECCO Products Used: ECCO-V4URL: https://hdl.handle.net/1912/8428 Other URLs: hypertext transfer protocol : //mit.whoi.edu/physical-oceanography/recent-dissertations-and-theses ? tid=1423 & cid=245629, hypertext transfer protocol : //www.google.com/url ? sa=t & rct=j & q= & esrc=s & source=web & cd=2 & ved=2ahUKEwiAo4ew8bPhAhUUNn0KHSPdC18QFjABegQIAhAC & url=https % 253A
Sánchez, L.; Čunderlík, R.; Dayoub, N.; Mikula, K.; Minarechová, Z.; Šíma, Z.; Vatrt, V.; Vojtíšková, M. (2016). A conventional value for the geoid reference potential W 0, Journal of Geodesy, 9 (90), 815-835, 10.1007/s00190-016-0913-x. Title: A conventional respect for the geoid reference point likely W 0 Type: Journal article Publication: Journal of Geodesy Author(s): Sánchez, L. ; Čunderlík, R. ; Dayoub, N. ; Mikula, K. ; Minarechová, Z. ; Šíma, Z. ; Vatrt, V. ; Vojtíšková, M. Year: 2016 Formatted Citation: Sánchez, L., R. Čunderlík, N. Dayoub, K. Mikula, Z. Minarechová, Z. Šíma, V. Vatrt, and M. Vojtíšková, 2016 : A conventional value for the geoid address likely W 0. Journal of Geodesy, 90 ( 9 ), 815-835, doi:10.1007/s00190-016-0913-x Abstract: Keywords: ECCO Products Used: ECCO2URL: http://link.springer.com/10.1007/s00190-016-0913-x Other URLs:
Huang, Xumei; Wang, Weiqiang; Liu, Hailong (2016). The dynamic characteristics of deep meridional overturning circulation in the Indian Ocean based on six reanalysis datasets, Journal of Tropical Oceanography, 4 (35), 11-20, 10.11978/2015126. Title: The dynamic characteristics of deep meridional overturning circulation in the indian Ocean based on six reanalysis datasets Type: Journal article Publication: Journal of Tropical Oceanography Author(s): Huang, Xumei ; Wang, Weiqiang ; Liu, Hailong Year: 2016 Formatted Citation: Huang, X., W. Wang, and H. Liu, 2016 : The active characteristics of thick meridional overturning circulation in the indian Ocean based on six reanalysis datasets. Journal of Tropical Oceanography, 35 ( 4 ), 11-20, doi:10.11978/2015126 Abstract: Based on six sets of model products, the active characteristics of the deep meridional overturning circulation in the amerind Ocean under time-average conditions are studied. In the time-average state of matter, the Meridional overturn circulation ( MOC ) of the amerind Ocean presents a reproducible structure in each set of data, that is, the bottom and deep water bodies enter the indian Ocean to the north, and the counter-clockwise structure of the indian Ocean flows south and southbound. Through the moral force decomposition of the meridional overrule circulation, the paper analyzes the similarities and differences of each office share in each set of data. In each rig of data, the Ekman separate of the South indian Ocean presents a reproducible counterclockwise flip structure with the highest intensity at 10°S ; the ground rotation and the extinct mold contribution exhibit alike clockwise and counterclockwise flip structures respectively at 10°S south. At 27°S, the intensity is the largest and the sign is opposite ; relatively speaking, the Ekman contribution is more obvious between the 20°S and the equator, and the ground rotation and the outer character are more in the area confederacy of 25°S. obvious. Based on different active thermal forcings, there are significant differences in the spatial extent and saturation of each moral force part of the stream function in each set of data : Since the wind fields of each set of data are not much different, the overall structure of the Ekman separate is similar, and the volume difference is small ; In the geostrophic separate, the difference in the military capability of the clockwise flip social organization exhibited by each data is chiefly affected by the potency of the baroclinic flow field in the inside zone and the structure of the western limit run. The stronger the baroclinic flow field in the inner zone, the stronger the flip structure ; the west boundary The wide the flow width, the greater the influence on the baroclinic stream playing field in the inner partition, and the greater the debilitative of the inversion structure strength ; the potency of the partially anatropous social organization of the outer fail is affected by the potency of the western limit run : the greater the strength of the western boundary flow, the out mode The greater the strength of the partially anatropous social organization. Keywords: ECCO Products Used: ECCO2URL: http://www.cqvip.com/qk/96022x/201604/7000008660.html Other URLs:
Maulik, Romit; San, Omer (2016). Dynamic modeling of the horizontal eddy viscosity coefficient for quasigeostrophic ocean circulation problems, Journal of Ocean Engineering and Science, 4 (1), 300-324, 10.1016/j.joes.2016.08.002. Title: Dynamic modeling of the horizontal eddy viscosity coefficient for quasigeostrophic ocean circulation problems Type: Journal article Publication: Journal of Ocean Engineering and Science Author(s): Maulik, Romit ; San, Omer Year: 2016 Formatted Citation: Maulik, R., and O. San, 2016 : Dynamic model of the horizontal eddy viscosity coefficient for quasigeostrophic ocean circulation problems. Journal of Ocean Engineering and Science, 1 ( 4 ), 300-324, doi:10.1016/j.joes.2016.08.002 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://linkinghub.elsevier.com/retrieve/pii/S2468013316300018 Other URLs:
Song, Hajoon; Marshall, John; Follows, Michael J.; Dutkiewicz, Stephanie; Forget, Gaël (2016). Source waters for the highly productive Patagonian shelf in the southwestern Atlantic, Journal of Marine Systems (158), 120-128, 10.1016/j.jmarsys.2016.02.009. Title: Source waters for the highly productive Patagonian ledge in the southwestern Atlantic Type: Journal article Publication: Journal of Marine Systems Author(s): Song, Hajoon ; Marshall, John ; Follows, Michael J. ; Dutkiewicz, Stephanie ; Forget, Gaël Year: 2016 Formatted Citation: Song, H., J. Marshall, M. J. Follows, S. Dutkiewicz, and G. Forget, 2016 : source waters for the highly generative Patagonian shelf in the southwest Atlantic. Journal of Marine Systems, 158, 120-128, doi:10.1016/j.jmarsys.2016.02.009 Abstract: possible nutrient sources and delivery mechanism for the highly productive Patagonian shelf in the southwest Atlantic are identified. Using a passive tracer adjoint sensitivity experiment, we identify three generator waters : waters local anesthetic to the Patagonian ledge, coastal waters near the Chilean coast and the subsurface waters in the southeasterly Pacific. We perform a series of forward simulations of a biogeochemical model to investigate the affect of food perturbations in these generator regions to productivity on the Patagonian shelf. positive nitrate perturbations from local waters have an immediate impact elevating productiveness. Iron perturbations local to the ledge, however, do not change productiveness because the ledge region is limited by nitrate. extra nutrient supply from the other source regions leads to increases in productivity. We find that positivist food perturbations in subsurface waters in the southeast Pacific leave in the largest promote of productivity over the shelf. These source waters are rich in nutrients and upwelled from the depth where light levels are thus moo that they can not be consumed. last, we identify winter acute vertical mix as the identify march which draws nutrients from below 300-500 meter to the surface before being delivered to the shelf. Keywords: Adjoint sensitivity analysis, Nutrient sources, Patagonian shelf, Southern Ocean, Vertical shuffle ECCO Products Used: ECCO-V4 ; adjointURL: http://www.sciencedirect.com/science/article/pii/S0924796316000452 Other URLs:
Wu, Yang; Zhai, Xiaoming; Wang, Zhaomin (2016). Impact of Synoptic Atmospheric Forcing on the Mean Ocean Circulation, Journal of Climate, 16 (29), 5709-5724, 10.1175/JCLI-D-15-0819.1. Title: Impact of Synoptic Atmospheric Forcing on the Mean Ocean Circulation Type: Journal article Publication: Journal of Climate Author(s): Wu, Yang ; Zhai, Xiaoming ; Wang, Zhaomin Year: 2016 Formatted Citation: Wu, Y., X. Zhai, and Z. Wang, 2016 : impact of Synoptic Atmospheric Forcing on the Mean Ocean Circulation. J. Clim., 29 ( 16 ), 5709-5724, doi:10.1175/JCLI-D-15-0819.1 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/10.1175/JCLI-D-15-0819.1 Other URLs:
Lee, Younjoo J.; Matrai, Patricia A.; Friedrichs, Marjorie A. M.; Saba, Vincent S.; Aumont, Olivier; Babin, Marcel; Buitenhuis, Erik T.; Chevallier, Matthieu; de Mora, Lee; Dessert, Morgane; Dunne, John P.; Ellingsen, Ingrid H.; Feldman, Doron; Frouin, Robert; Gehlen, Marion; Gorgues, Thomas; Ilyina, Tatiana; Jin, Meibing; John, Jasmin G.; Lawrence, Jon; Manizza, Manfredi; Menkes, Christophe E.; Perruche, Coralie; Le Fouest, Vincent; Popova, Ekaterina E.; Romanou, Anastasia; Samuelsen, Annette; Schwinger, Jörg; Séférian, Roland; Stock, Charles A.; Tjiputra, Jerry; Tremblay, L. Bruno; Ueyoshi, Kyozo; Vichi, Marcello; Yool, Andrew; Zhang, Jinlun (2016). Net primary productivity estimates and environmental variables in the Arctic Ocean: An assessment of coupled physical-biogeochemical models, Journal of Geophysical Research: Oceans, 12 (121), 8635-8669, 10.1002/2016JC011993. Title: Net primary productivity estimates and environmental variables in the Arctic Ocean : An judgment of match physical-biogeochemical models Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Lee, Younjoo J. ; Matrai, Patricia A. ; Friedrichs, Marjorie A. M. ; Saba, Vincent S. ; Aumont, Olivier ; Babin, Marcel ; Buitenhuis, Erik T. ; Chevallier, Matthieu ; de Mora, Lee ; Dessert, Morgane ; Dunne, John P. ; Ellingsen, Ingrid H. ; Feldman, Doron ; Frouin, Robert ; Gehlen, Marion ; Gorgues, Thomas ; Ilyina, Tatiana ; Jin, Meibing ; John, Jasmin G. ; Lawrence, Jon ; Manizza, Manfredi ; Menkes, Christophe E. ; Perruche, Coralie ; Le Fouest, Vincent ; Popova, Ekaterina E. ; Romanou, Anastasia ; Samuelsen, Annette ; Schwinger, Jörg ; Séférian, Roland ; Stock, Charles A. ; Tjiputra, Jerry ; Tremblay, L. Bruno ; Ueyoshi, Kyozo ; Vichi, Marcello ; Yool, Andrew ; Zhang, Jinlun Year: 2016 Formatted Citation: Lee, Y. J. and Coauthors, 2016 : net basal productiveness estimates and environmental variables in the Arctic Ocean : An appraisal of couple physical-biogeochemical models. J. Geophys. Res. Ocean., 121 ( 12 ), 8635-8669, doi:10.1002/2016JC011993 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2016JC011993 Other URLs:
Stammer, D; Balmaseda, M; Heimbach, P; Kohl, A; Weaver, A (2016). Ocean Data Assimilation in Support of Climate Applications: Status and Perspectives, Ann Rev Mar Sci (8), 491-518, 10.1146/annurev-marine-122414-034113. Title: Ocean Data Assimilation in Support of Climate Applications : Status and Perspectives Type: Journal article Publication: Ann Rev Mar Sci Author(s): Stammer, D ; Balmaseda, M ; Heimbach, P ; Kohl, A ; Weaver, A Year: 2016 Formatted Citation: Stammer, D., M. Balmaseda, P. Heimbach, A. Kohl, and A. Weaver, 2016 : Ocean Data Assimilation in Support of Climate Applications : Status and Perspectives. Ann Rev Mar Sci, 8, 491-518, doi:10.1146/annurev-marine-122414-034113 Abstract: Ocean data assimilation brings together observations with known dynamics encapsulated in a circulation model to describe the time-varying ocean circulation. Its applications are manifold, ranging from marine and ecosystem forecast to climate prediction and studies of the carbon cycle. here, we address only climate applications, which range from improving our sympathize of ocean circulation to estimating initial or boundary conditions and model parameters for ocean and climate forecasts. Because of differences in underlying methodologies, data assimilation products must be used judiciously and selected according to the specific determination, as not all relate inferences would be equally authentic. far advances are expected from improved models and methods for estimating and representing error data in datum assimilation systems. ultimately, data assimilation into coupled climate system components is needed to support ocean and climate services. however, maintaining the infrastructure and expertness for sustained data assimilation remains challenging. Keywords: ECCO Products Used: ECCO-KFS ; ECCO-V4 ; GECCO2 URL: Other URLs:
Jones, Daniel C; Meijers, Andrew J S; Shuckburgh, Emily; Sallée, Jean-Baptiste; Haynes, Peter; McAufield, Ewa K; Mazloff, Matthew R (2016). How does Subantarctic Mode Water ventilate the Southern Hemisphere subtropics?, Journal of Geophysical Research: Oceans, 9 (121), 6558-6582, 10.1002/2016JC011680. Title: How does Subantarctic Mode Water ventilate the Southern Hemisphere subtropics ? Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Jones, Daniel C ; Meijers, Andrew J S ; Shuckburgh, Emily ; Sallée, Jean-Baptiste ; Haynes, Peter ; McAufield, Ewa K ; Mazloff, Matthew R Year: 2016 Formatted Citation: Jones, D. C., A. J. S. Meijers, E. Shuckburgh, J. Sallée, P. Haynes, E. K. McAufield, and M. R. Mazloff, 2016 : How does Subantarctic Mode Water ventilate the Southern Hemisphere subtropics ? J. Geophys. Res. Ocean., 121 ( 9 ), 6558-6582, doi:10.1002/2016JC011680 Abstract: In several regions north of the Antarctic Circumpolar Current ( ACC ), deep winter convection refreshes pools of decrepit stratified subsurface water jointly referred to as Subantarctic Mode Water ( SAMW ). SAMW ventilates the subtropical thermocline on decadal timescales, providing nutrients for low-latitude productiveness and potentially trapping anthropogenetic carbon in the trench ocean interior for centuries. In this work, we investigate the spatial structure and timescales of mode water export and consort thermocline ventilation. We use passive tracers in an eddy-permitting, observationally-informed Southern Ocean model to identify the pathways followed by mode waters between their formation regions and the areas where they beginning enter the subtropics. We find that the pathways followed by the mood water tracers are largely set by the mean geostrophic circulation. export from the indian and Central Pacific mood water pools is primarily driven by large-scale coil circulation, whereas export from the australian and Atlantic pools is heavily influenced by the ACC. export from the Eastern Pacific modality water system pool is driven by a combination of trench boundary currents and subtropical coil circulation. More than 50 % of each mood water tracer reaches the subtropical thermocline within 50 years, with significant unevenness between pools. The Eastern Pacific nerve pathway is particularly effective, with roughly 80 % entering the subtropical thermocline within 50 years. The time required for 50 % of the mode water tracers to leave the southerly Ocean sphere varies significantly between mode water pools, from 9 years for the amerind mode water pool to approximately 40 years for the Central Pacific mode water pool. Keywords: 0545 Modeling, 4223 Descriptive and regional oceanography, 4283 Water masses, 4513 Decadal ocean variability, 4532 General circulation, Southern Ocean, Subantarctic Mode Water, circulation, model, thermocline, breathing ECCO Products Used: SOSEURL: http://dx.doi.org/10.1002/2016JC011680 Other URLs:
Jung, Thomas; Gordon, Neil D.; Bauer, Peter; Bromwich, David H.; Chevallier, Matthieu; Day, Jonathan J.; Dawson, Jackie; Doblas-Reyes, Francisco; Fairall, Christopher; Goessling, Helge F.; Holland, Marika; Inoue, Jun; Iversen, Trond; Klebe, Stefanie; Lemke, Peter; Losch, Martin; Makshtas, Alexander; Mills, Brian; Nurmi, Pertti; Perovich, Donald; Reid, Philip; Renfrew, Ian A.; Smith, Gregory; Svensson, Gunilla; Tolstykh, Mikhail; Yang, Qinghua (2016). Advancing Polar Prediction Capabilities on Daily to Seasonal Time Scales, Bulletin of the American Meteorological Society, 9 (97), 1631-1647, 10.1175/BAMS-D-14-00246.1. Title: Advancing Polar Prediction Capabilities on Daily to Seasonal Time Scales Type: Journal article Publication: Bulletin of the american Meteorological society Author(s): Jung, Thomas ; Gordon, Neil D. ; Bauer, Peter ; Bromwich, David H. ; Chevallier, Matthieu ; Day, Jonathan J. ; Dawson, Jackie ; Doblas-Reyes, Francisco ; Fairall, Christopher ; Goessling, Helge F. ; Holland, Marika ; Inoue, Jun ; Iversen, Trond ; Klebe, Stefanie ; Lemke, Peter ; Losch, Martin ; Makshtas, Alexander ; Mills, Brian ; Nurmi, Pertti ; Perovich, Donald ; Reid, Philip ; Renfrew, Ian A. ; Smith, Gregory ; Svensson, Gunilla ; Tolstykh, Mikhail ; Yang, Qinghua Year: 2016 Formatted Citation: Jung, T. and Coauthors, 2016 : Advancing Polar Prediction Capabilities on Daily to Seasonal Time Scales. Bull. Am. Meteorol. Soc., 97 ( 9 ), 1631-1647, doi:10.1175/BAMS-D-14-00246.1 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/10.1175/BAMS-D-14-00246.1 Other URLs:
Tagliabue, A; Aumont, O; DeAth, R; Dunne, J P; Dutkiewicz, Stephanie; Galbraith, E; Misumi, K; Moore, J K; Ridgwell, A; Sherman, E; Stock, C; Vichi, M; Volker, C; Yool, A (2016). How well do global ocean biogeochemistry models simulate dissolved iron distributions?, Global Biogeochemical Cycles, 2 (30), 149-174, 10.1002/2015gb005289. Title: How well do global ocean biogeochemistry models simulate dissolved iron distributions ? Type: Journal article Publication: Global Biogeochemical Cycles Author(s): Tagliabue, A ; Aumont, O ; DeAth, R ; Dunne, J P ; Dutkiewicz, Stephanie ; Galbraith, E ; Misumi, K ; Moore, J K ; Ridgwell, A ; Sherman, E ; Stock, C ; Vichi, M ; Volker, C ; Yool, A Year: 2016 Formatted Citation: Tagliabue, A. and Coauthors, 2016 : How well do global ocean biogeochemistry models simulate dissolved iron distributions ? Global Biogeochemical Cycles, 30 ( 2 ), 149-174, doi:10.1002/2015gb005289 Abstract: Numerical models of ocean biogeochemistry are relied upon to make projections about the affect of climate change on marine resources and screen hypotheses regarding the drivers of past changes in climate and ecosystems. In large areas of the ocean, iron handiness regulates the functioning of marine ecosystems and hence the ocean carbon motorbike. consequently, our ability to quantify the drivers and impacts of fluctuations in ocean ecosystems and carbon paper cycling in space and meter relies on first gear achieving an appropriate representation of the modern marine iron cycle in models. When the iron distributions from 13 global ocean biogeochemistry models are compared against the latest oceanic sections from the GEOTRACES course of study, we find that all models struggle to reproduce many aspects of the observe spatial patterns. Models that reflect the emerging evidence for multiple iron sources or subtleties of its internal cycle perform much better in capturing observed features than their elementary contemporaries, particularly in the ocean interior. We show that the significant doubt in the remark fluxes of iron results in a identical wide range of residence times across models, which has implications for the response of ecosystems and global carbon cycle to perturbations. Given this large uncertainty, cast-iron fertilization experiments based on any single current generation exemplary should be interpreted with caution. Improvements to how such models represent iron salvage and besides biological cycle are needed to raise confidence in their projections of global biogeochemical change in the ocean. Keywords: atmospheric carbon dioxide, biogeochemistry, climate, dust deposition, ecosystem model, iron, marine-phytoplankton, mannequin, natural fertilization, north-atlantic ocean, nutrient-limitation, ocean, atom concentration, southern-ocean, global ocean ECCO Products Used: ECCO-V2 URL: Other URLs:
Proshutinsky, A.; Steele, M.; Timmermans, M.-L. (2016). Forum for Arctic Modeling and Observational Synthesis (FAMOS): Past, current, and future activities, Journal of Geophysical Research: Oceans, 6 (121), 3803-3819, 10.1002/2016JC011898. Title: Forum for Arctic Modeling and Observational Synthesis ( FAMOS ) : past, current, and future activities Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Proshutinsky, A. ; Steele, M. ; Timmermans, M.-L. Year: 2016 Formatted Citation: Proshutinsky, A., M. Steele, and M. Timmermans, 2016 : forum for Arctic Modeling and Observational Synthesis ( FAMOS ) : past, stream, and future activities. J. Geophys. Res. Ocean., 121 ( 6 ), 3803-3819, doi:10.1002/2016JC011898 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2016JC011898 Other URLs:
Ashkezari, Mohammad D; Hill, Christopher N; Follett, Christopher N; Forget, Gaël; Follows, Michael J. (2016). Oceanic eddy detection and lifetime forecast using machine learning methods, Geophysical Research Letters, 23 (43), 12,212-234,241, 10.1002/2016GL071269. Title: Oceanic eddy detection and life forecast using car determine methods Type: Journal article Publication: Geophysical Research Letters Author(s): Ashkezari, Mohammad D ; Hill, Christopher N ; Follett, Christopher N ; Forget, Gaël ; Follows, Michael J. Year: 2016 Formatted Citation: Ashkezari, M. D., C. N. Hill, C. N. Follett, G. Forget, and M. J. Follows, 2016 : Oceanic eddy detection and life calculate using machine learning methods. Geophys. Res. Lett., 43 ( 23 ), 12,212-234,241, doi:10.1002/2016GL071269 Abstract: We report a novel altimetry-based machine learning approach for eddy identification and word picture. The machine learn models use casual maps of geostrophic speed anomalies and are trained according to the phase angle between the zonal and meridional components at each grid point. The discipline models are then used to identify the corresponding eddy phase patterns and to predict the life of a detected eddy social organization. The performance of the proposed method acting is examined at two dynamically unlike regions to demonstrate its full-bodied behavior and region independence. Keywords: eddy, eddy life, machine determine, ocean, remote sensing ECCO Products Used: URL: https://doi.org/10.1002/2016GL071269 Other URLs:
Scanlon, Bridget R.; Zhang, Zizhan; Save, Himanshu; Wiese, David N.; Landerer, Felix W.; Long, Di; Longuevergne, Laurent; Chen, Jianli (2016). Global evaluation of new GRACE mascon products for hydrologic applications, Water Resources Research, 12 (52), 9412-9429, 10.1002/2016WR019494. Title: Global evaluation of new GRACE mascon products for hydrologic applications Type: Journal article Publication: Water Resources Research Author(s): Scanlon, Bridget R. ; Zhang, Zizhan ; Save, Himanshu ; Wiese, David N. ; Landerer, Felix W. ; Long, Di ; Longuevergne, Laurent ; Chen, Jianli Year: 2016 Formatted Citation: Scanlon, B. R., Z. Zhang, H. Save, D. N. Wiese, F. W. Landerer, D. Long, L. Longuevergne, and J. Chen, 2016 : global evaluation of new GRACE mascon products for hydrologic applications. Water Resources Research, 52 ( 12 ), 9412-9429, doi:10.1002/2016WR019494 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2016WR019494 Other URLs:
Bender, Peter L; Betts, Casey R (2016). Ocean calibration approach for data from the GRACE Follow-On mission, Journal of Geophysical Research: Solid Earth, 2 (121), 1218-1235, 10.1002/2015JB012433. Title: Ocean calibration approach for data from the GRACE Follow-On mission Type: Journal article Publication: Journal of Geophysical Research : upstanding earth Author(s): Bender, Peter L ; Betts, Casey R Year: 2016 Formatted Citation: Bender, P. L., and C. R. Betts, 2016 : ocean calibration border on for data from the GRACE Follow-On mission. Journal of Geophysical Research : solid Earth, 121 ( 2 ), 1218-1235, doi:10.1002/2015JB012433 Abstract: The Gravity Recovery and Climate Experiment ( GRACE ) deputation has been providing valuable new data on meter variations in the Earth ‘s gravity field since 2002. In addition, the GRACE Follow-On mission is scheduled to be flown soon after the goal of life of the GRACE deputation in order to minimize the loss of valuable data on the Earth ‘s gravity field changes. In view of the major benefits to hydrology and oceanography, american samoa well as to other fields, it is desirable to investigate the fundamental limits to monitoring the time variations in the Earth ‘s gravity plain during GRACE-type missions. A simplify model is presented in this paper for making estimates of the consequence of differential inauthentic accelerations of the satellites during times when four consecutive revolutions cross the Pacific Ocean. The analysis approach discussed is to make use of changes in the satellite separation observed during passages across low-latitude regions of the Pacific and of other oceans to correct for bastardly accelerations of the satellites. The low-latitude regions of the Pacific and of other oceans are the stretch regions where the a priori uncertainties in the time variations of the geopotential heights due to mass distribution changes are known best. In accession, advantage can be taken of the recur crossings of the South Pole and the North Pole, since the uncertainties in changes in the geopotential heights at the poles during the prison term required for four orbit revolutions are probable to be minor. Keywords: ECCO-JPL ocean model, GRACE Follow-On mission, geopotential variations at satellite altitude, mass distribution variations ECCO Products Used: ECCO-KFSURL: https://doi.org/10.1002/2015JB012433 Other URLs:
Whitefield, Jonathan David (2016). Arctic circulation pathways, heat and freshwater fluxes: Results from numerical model. Title: Arctic circulation pathways, heating system and fresh water fluxes : Results from numerical model Type: dissertation Publication: Author(s): Whitefield, Jonathan David Year: 2016 Formatted Citation: Whitefield, J. D., 2016 : arctic circulation pathways, hotness and fresh water fluxes : Results from numeral model., 133 pp. Abstract: With increasing attention on Arctic heating and attendant reductions of sea ice rink, many studies are focusing on the “ gateways ” to the Arctic Ocean – the regions where water enters and exits the Arctic Basin. The Chukchi Sea is the only pathway for Pacific water to enter the Arctic Ocean. While the Chukchi naturally undergoes large seasonal and interannual unevenness, presently it is besides undergo larger and rapid changes, which include transition to a longer ice-free season. numerical models are often used to explore this region, due to experimental restrictions associated with sea-ice. Most past and stream models tend to represent riverine inputs in a non-realistic manner ; adding fresh water on or past the shelf break, not accounting for seasonality of the river exhaust, and omitting riverine heat content. In addition, in many of these models, buoyant coastal currents are not well resolved. hera, I present a modern river dismissal and river temperature data laid ( at 1/6° resolving power ). Employing this newfangled data determine within a high-resolution pan-Arctic mannequin, fresh water content on the Arctic shelves increased by ~3600 km3 and summ emergency room heating system fluxes increased by 8 TW ( compared to previous models ), resulting in a reduction o f the Arctic-wide September ocean internal-combustion engine extent by up to ~10 %. With both the improved riverine forcing included in the model calculations, and the model ‘s ability to resolve the Alaskan Coastal Current, the model suggests an extra 0.25 Sv of run to the long-run Bering Strait volume transmit. This translates to a 64 % increase in the heat transport and a 32 % increase in fresh water tape drive ( including 4 % from sea methamphetamine ). The model besides resolves individual transportation pathways in the Chukchi Sea, including that of Bering Sea Water, which could influence species constitution and distribution in the easterly Chukchi Sea. Increased computing power and better experimental tools lead to more accurate reproductions of coastal currents and riverine influences in these numeric models. Greater understand of this near-shore region and its influences is vital to promote rede larger connections between terrestrial and marine ecosystems, arsenic well as Arctic-wide and global oceanic changes. Keywords: ECCO Products Used: ECCO2URL: https://search.proquest.com/openview/4b2f541edd7755c9909e3d9e395e2f86/1?pq-origsite=gscholar&cbl=18750&diss=y Other URLs: hypertext transfer protocol : //scholarworks.alaska.edu/bitstream/handle/11122/6653/Whitefield_uaf_0006N_10478.pdf ? sequence=1
McNeely, Jeffrey A. (2016). Biodiversity in a Changing Climate: Linking Science and Management in Conservation edited by Terry L. Root, Kimberly R. Hall, Mark P. Herzog and Christine A. Howell (2015), 244 pp., University of California Press, Oakland, USA. ISBN 978-0-520-28671-9 (pbk, Oryx, 02 (50), 375, 10.1017/S0030605316000168. Title: Biodiversity in a changing climate : Linking Science and Management in Conservation edited by Terry L. Root, Kimberly R. Hall, Mark P. Herzog and Christine A. Howell ( 2015 ), 244 pp., University of California Press, Oakland, USA. ISBN 978-0-520-28671-9 ( pbk Type: Journal article Publication: Oryx Author(s): McNeely, Jeffrey A. Year: 2016 Formatted Citation: McNeely, J. A., 2016 : biodiversity in a change climate : Linking Science and Management in Conservation edited by Terry L. Root, Kimberly R. Hall, Mark P. Herzog and Christine A. Howell ( 2015 ), 244 pp., University of California Press, Oakland, USA. ISBN 978-0-520-28671-9 ( pbk. Oryx, 50 ( 02 ), 375, doi:10.1017/S0030605316000168 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://www.journals.cambridge.org/abstract_S0030605316000168 Other URLs:
Fenoglio-Marc, Luciana (2016). GOCE ++ Dynamic Topography at the coast and tide gauge unification. Title: GOCE ++ Dynamic Topography at the coast and tide gauge union Type: Report Publication: Author(s): Fenoglio-Marc, Luciana Year: 2016 Formatted Citation: Fenoglio-Marc, L., 2016 : GOCE ++ Dynamic Topography at the coast and tide gauge unification., 1-13 pp. hypertext transfer protocol : //www.gocehsu.eu/DELIVERABLES/TechReportWP1300D2_Aug2016_v5.pdf. Abstract: The objective of this natural process is a amalgamate and improved reason and model of coastal processes and physics responsible for sea level changes on versatile temporal/spatial scales. In practice, this study shall combine respective elements : Propose and develop an approach to estimate a consistent DT at tide gauges, coastal areas, and open ocean. Validate the approach path in well-surveyed areas where DT can be determined at tide gauges. Determine a consistent MDT using GOCE with coherent error covariance fields. plug in measurements of a global laid of tide gauges and investigate trends. Develop and mentality how the approach could be further improved using improved coastal altimetry. Keywords: ECCO Products Used: ECCO2URL: http://www.gocehsu.eu/DELIVERABLES/TechReportWP1300D2_Aug2016_v5.pdf Other URLs:
Ponte, R M; Vinogradova, N T (2016). An assessment of basic processes controlling mean surface salinity over the global ocean, Geophysical Research Letters, 13 (43), 7052-7058, 10.1002/2016GL069857. Title: An assessment of basic processes controlling beggarly surface salt over the global ocean Type: Journal article Publication: Geophysical Research Letters Author(s): Ponte, R M ; Vinogradova, N T Year: 2016 Formatted Citation: Ponte, R. M., and N. T. Vinogradova, 2016 : An appraisal of basic processes controlling mean airfoil brininess over the ball-shaped ocean. Geophys. Res. Lett., 43 ( 13 ), 7052-7058, doi:10.1002/2016GL069857 Abstract: A data-constrained ocean express estimate that permits closed property budget diagnostics is used to examine the balance between surface impel ( F¯ ), advective ( A¯ ), and diffusing ( D¯ ) fluxes in maintaining the large-scale time-mean airfoil salt Ss¯. Time-mean budgets ( 1993-2010 ) are considered for the 10 thousand thickly top layer. In cosmopolitan, D¯ tends to counteract F¯, but A¯ is important about everywhere, and some regions show a main balance between A¯ and D¯ ( Bay of Bengal, Arctic ) or A¯ and F¯ ( tropical Atlantic and Pacific ). Advection tends to freshen the surface in the tropics and high latitudes, with face-to-face tendencies in midlatitudes. For diverse Ss¯ tropical extremum, A¯ adds to the F¯ tendencies in haste regions and opposes F¯ in vaporization regions. long-run Ss¯ conditions therefore reflect more than a simple diffusing adjustment to F¯, likely involving close interaction between wind- and buoyancy-driven circulation and mix processes. Keywords: 4215 Climate and interannual unevenness, 4260 Ocean data assimilation and reanalysis, 4504 Air/sea interactions, 4532 General circulation, 4572 Upper ocean and assorted layer processes, fresh water liquefy, airfoil brininess ECCO Products Used: ECCO-V4URL: http://dx.doi.org/10.1002/2016GL069857 Other URLs:
Zhao, Jiechen; Yang, Qinghua; Li, Ming; Li, Qun; Li, Chunhua; Tian, Zhongxiang; Zhang, Lin (2016). Improving Arctic sea ice concentration forecasts with a Nudging data assimilation method, Acta Oceanologica Sinica, 5 (38), 70-82, 10.3969/j.issn.0253-4193.2016.05.007. Title: Improving Arctic ocean ice concentration forecasts with a Nudging datum assimilation method acting Type: Journal article Publication: Acta Oceanologica Sinica Author(s): Zhao, Jiechen ; Yang, Qinghua ; Li, Ming ; Li, Qun ; Li, Chunhua ; Tian, Zhongxiang ; Zhang, Lin Year: 2016 Formatted Citation: Zhao, J., Q. Yang, M. Li, Q. Li, C. Li, Z. Tian, and L. Zhang, 2016 : Improving Arctic sea frosting concentration forecasts with a Nudging datum assimilation method. Acta Oceanologica Sinica, 38 ( 5 ), 70-82, doi:10.3969/j.issn.0253-4193.2016.05.007 Abstract: The rapid reduction of Arctic summer sea ice makes it possible to open the Arctic groove ahead of time. In order to provide timely and dependable sea frosting calculate protection for the Arctic ice area transport activities, it is pressing to improve the sea ice forecast degree. This paper is based on the general circulation of MIT. Model ( MIT-gcm ), using the Newton Relaxation Approximation ( Nudging ) data assimilation method acting to assimilate the ocean ice rink volume data of the second genesis advanced microwave radiation imager ( AMSR2 ) of the University of Bremen, Germany, into the model, establishing Arctic sea ice Numerical prediction organization. The design experiment compares the improvement effects of three different Nudging coefficient calculation schemes. The results show that different schemes can significantly improve the initial battlefield of sea internal-combustion engine concentration after selecting appropriate parameters. By designing two groups of prediction experiments with or without Nudging assimilation, Combined with the satellite distant sensing sea ice rink volume and the nautical ice rink saturation observation data of the “ Snow Dragon ” ship during the fifth Arctic scientific expedition in China, quantitative analysis of the 24-120 hydrogen prognosis of the Arctic ocean ice concentration by the Nudging assimilation program. The improvement results. The results show that the Nudging assimilation has a spatial distribution of the total Arctic sea ice rink concentration within 120 heat content and the sea ice intensification of the moving single point target. prediction results were importantly improved ; however, in the font of a little change in ice, 24 ~ 120 h bode Nudging assimilation test results are inferior to the results of prediction of inertia, needs to be promote improved bode techniques described numeric calculate system based Nudging assimilation. Keywords: Arctic sea ice, Nudging, concentration forecast, data assimilation ECCO Products Used: ECCO2URL: http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=hyxb201605007 Other URLs:
Zhao, Zhongxiang (2016). Internal tide oceanic tomography, Geophysical Research Letters, 17 (43), 9157-9164, 10.1002/2016GL070567. Title: Internal tide oceanic imaging Type: Journal article Publication: Geophysical Research Letters Author(s): Zhao, Zhongxiang Year: 2016 Formatted Citation: Zhao, Z., 2016 : Internal tide oceanic imaging. Geophys. Res. Lett., 43 ( 17 ), 9157-9164, doi:10.1002/2016GL070567 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2016GL070567 Other URLs:
Wang, Jinbo; Mazloff, Matthew R; Gille, Sarah T (2016). The effect of the Kerguelen Plateau on the ocean circulation, Journal of Physical OceanographyJournal of Physical Oceanography. Title: The consequence of the Kerguelen Plateau on the ocean circulation Type: Journal article Publication: Journal of Physical OceanographyJournal of Physical Oceanography Author(s): Wang, Jinbo ; Mazloff, Matthew R ; Gille, Sarah T Year: 2016 Formatted Citation: Wang, J., M. R. Mazloff, and S. T. Gille, 2016 : The consequence of the Kerguelen Plateau on the ocean circulation. Journal of Physical OceanographyJournal of Physical Oceanography, hypertext transfer protocol : //dx.doi.org/10.1175/JPO-D-15-0216.1 Abstract: The Kerguelen Plateau is a major topographical have in the southern Ocean. Located in the indian sector and spanning about 2,000 kilometers in the meridional direction from the polar to the Subantarctic region, it deflects the eastbound flowing Antarctic Circumpolar Current and influences the physical circulation and biogeochemistry of the Southern Ocean. The Kerguelen Plateau is known to govern the local dynamics, but its affect on the large-scale ocean circulation has not been explored. By comparing global ocean numeric simulations with and without the Kerguelen Plateau we identify two major Kerguelen Plateau effects : 1 ) The tableland supports a local blackmail field that pushes the Antarctic Circumpolar Current north. This process reduces the affectionate water transportation from the indian to the Atlantic Oceans. 2 ) The plateau-generated press field shields the Weddell Gyre from the influence of the strong Subantarctic and Subtropical waters. The first effect influences the potency of the Antarctic Circumpolar Current and the Agulhas escape, both of which are authoritative elements in the global thermohaline circulation. The second impression results in a zonally asymmetrical reply of the subpolar gyres to Southern Hemisphere wind forcing.AbstractThe Kerguelen Plateau is a major topographical feature in the southerly Ocean. Located in the indian sector and spanning about 2,000 kilometers in the meridional focus from the polar to the Subantarctic region, it deflects the eastward flowing Antarctic Circumpolar Current and influences the physical circulation and biogeochemistry of the Southern Ocean. The Kerguelen Plateau is known to govern the local anesthetic dynamics, but its impact on the large-scale ocean circulation has not been explored. By comparing ball-shaped ocean numeric simulations with and without the Kerguelen Plateau we identify two major Kerguelen Plateau effects : 1 ) The tableland supports a local anesthetic coerce field that pushes the Antarctic Circumpolar Current north. This process reduces the warm water transmit from the indian to the Atlantic Oceans. 2 ) The plateau-generated pressure field shields the Weddell Gyre from the charm of the affectionate Subantarctic and Subtropical waters. The first gear effect influences the persuasiveness of the Antarctic Circumpolar Current and the Agulhas escape, both of which are crucial elements in the ball-shaped thermohaline circulation. The moment effect results in a zonally asymmetrical response of the subpolar gyres to Southern Hemisphere wind forcing. Keywords: ECCO Products Used: SOSEURL: http://dx.doi.org/10.1175/JPO-D-15-0216.1 Other URLs:
Vinogradova, Nadya; Lee, Tong; Durack, Paul; Boutin, Jacqueline; Stammer, Detlef (2016). Ocean Salinity and the Water Cycle: Recent Progress and Future Challenges, GEWEX News, 6-8. Title: Ocean Salinity and the Water Cycle : recent Progress and Future Challenges Type: Magazine article Publication: GEWEX News Author(s): Vinogradova, Nadya ; Lee, Tong ; Durack, Paul ; Boutin, Jacqueline ; Stammer, Detlef Year: 2016 Formatted Citation: Vinogradova, N., T. Lee, P. Durack, J. Boutin, and D. Stammer, 2016 : Ocean Salinity and the Water Cycle : late Progress and Future Challenges. GEWEX News, 6-8 pp. Abstract: Keywords: ECCO Products Used: ECCO-V4 URL: Other URLs:
Rignot, E; Xu, Y; Menemenlis, Dimitris; Mouginot, J; Scheuchl, B; Li, X; Morlighem, M; Seroussi, Hélène; van den Broeke, M; Fenty, Ian; Cai, C; An, L; de Fleurian, B (2016). Modeling of ocean-induced ice melt rates of five west Greenland glaciers over the past two decades, Geophysical Research Letters, 12 (43), 6374-6382, 10.1002/2016GL068784. Title: Modeling of ocean-induced frost mellow rates of five west greenland glaciers over the past two decades Type: Journal article Publication: Geophysical Research Letters Author(s): Rignot, E ; Xu, Y ; Menemenlis, Dimitris ; Mouginot, J ; Scheuchl, B ; Li, X ; Morlighem, M ; Seroussi, Hélène ; van den Broeke, M ; Fenty, Ian ; Cai, C ; An, L ; de Fleurian, B Year: 2016 Formatted Citation: Rignot, E. and Coauthors, 2016 : model of ocean-induced ice melt rates of five west greenland glaciers over the past two decades. Geophys. Res. Lett., 43 ( 12 ), 6374-6382, doi:10.1002/2016GL068784 Abstract: High-resolution, three-dimensional simulations from the Massachusetts Institute of Technology general circulation model ocean model are used to calculate the subaqueous melt rate of the calving faces of Umiamako, Rinks, Kangerdlugssup, Store, and Kangilerngata glaciers, west Greenland, from 1992 to 2015. Model forcing is from monthly reconstructions of ocean state and ice rink sheet overflow. Results are analyzed in combination with observations of bathymetry, bed natural elevation, ice front retreat, and glacier speed. We calculate that subaqueous melt rates are 2-3 times larger in summer compared to winter and doubled in order of magnitude since the 1990s due to enhanced subglacial runoff and 1.6 ± 0.3°C warm ocean temperature. Umiamako and Kangilerngata retreated quickly in the 2000s when subaqueous thaw rates exceeded the calving rates and frosting front retreated to deeper go to bed elevation. In contrast, Store, Kangerdlugssup, and Rinks have remained stable because their subaqueous thaw rates are 3-4 times lower than their calve rates, i, the glaciers are dominated by calving processes. Keywords: calve, glaciology, greenland, ice-ocean interaction, bulk balance, subaqueous thaw ECCO Products Used: ECCO2 ; IceSheetURL: https://doi.org/10.1002/2016GL068784 Other URLs:
McGillicuddy, Dennis J. (2016). Mechanisms of Physical-Biological-Biogeochemical Interaction at the Oceanic Mesoscale, Annual Review of Marine Science, 1 (8), 125-159, 10.1146/annurev-marine-010814-015606. Title: Mechanisms of Physical-Biological-Biogeochemical Interaction at the Oceanic Mesoscale Type: Journal article Publication: Annual Review of Marine Science Author(s): McGillicuddy, Dennis J. Year: 2016 Formatted Citation: McGillicuddy, D. J., 2016 : Mechanisms of Physical-Biological-Biogeochemical Interaction at the Oceanic Mesoscale. Annual Review of Marine Science, 8 ( 1 ), 125-159, doi:10.1146/annurev-marine-010814-015606 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://www.annualreviews.org/doi/10.1146/annurev-marine-010814-015606 Other URLs:
Nowicki, Sophie M. J.; Payne, Anthony; Larour, Eric; Seroussi, Helene; Goelzer, Heiko; Lipscomb, William; Gregory, Jonathan; Abe-Ouchi, Ayako; Shepherd, Andrew (2016). Ice Sheet Model Intercomparison Project (ISMIP6) contribution to CMIP6, Geoscientific Model Development, 12 (9), 4521-4545, 10.5194/gmd-9-4521-2016. Title: Ice Sheet Model Intercomparison Project ( ISMIP6 ) contribution to CMIP6 Type: Journal article Publication: Geoscientific Model Development Author(s): Nowicki, Sophie M. J. ; Payne, Anthony ; Larour, Eric ; Seroussi, Helene ; Goelzer, Heiko ; Lipscomb, William ; Gregory, Jonathan ; Abe-Ouchi, Ayako ; Shepherd, Andrew Year: 2016 Formatted Citation: Nowicki, S. M. J. and Coauthors, 2016 : Ice Sheet Model Intercomparison Project ( ISMIP6 ) contribution to CMIP6. Geoscientific Model Development, 9 ( 12 ), 4521-4545, doi:10.5194/gmd-9-4521-2016 Abstract: Reducing the uncertainty in the past, introduce, and future contribution of ice sheets to low-lying change requires a align campaign between the climate and glaciology communities. The Ice Sheet Model Intercomparison Project for CMIP6 ( ISMIP6 ) is the primary bodily process within the Coupled Model Intercomparison Project – phase 6 ( CMIP6 ) focusing on the Greenland and Antarctic ice sheets. In this newspaper, we describe the model for ISMIP6 and its relationship with other activities within CMIP6. The ISMIP6 experimental design relies on CMIP6 climate models and includes, for the inaugural time within CMIP, coupled ice-sheet–climate models adenine well as standalone ice-sheet models. To facilitate analysis of the multi-model corps de ballet and to generate a arrange of standard climate inputs for standalone ice-sheet models, ISMIP6 defines a protocol for all variables related to ice sheets. ISMIP6 will provide a footing for investigating the feedbacks, impacts, and low-lying changes associated with dynamic ice rink sheets and for quantifying the doubt in ice-sheet-sourced ball-shaped low-lying switch. Keywords: ECCO Products Used: ECCO2 ; IceSheetURL: https://www.geosci-model-dev.net/9/4521/2016/ Other URLs:
Heaney, Kevin D.; Campbell, Richard L. (2016). Three-dimensional parabolic equation modeling of mesoscale eddy deflection, The Journal of the Acoustical Society of America, 2 (139), 918-926, 10.1121/1.4942112. Title: cubic parabolic equation model of mesoscale eddy deflection Type: Journal article Publication: The Journal of the Acoustical Society of America Author(s): Heaney, Kevin D. ; Campbell, Richard L. Year: 2016 Formatted Citation: Heaney, K. D., and R. L. Campbell, 2016 : cubic parabolic equality model of mesoscale eddy deflection. The Journal of the Acoustical Society of America, 139 ( 2 ), 918-926, doi:10.1121/1.4942112 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://asa.scitation.org/doi/10.1121/1.4942112 Other URLs:
Zhang, Ying; Du, Yan; Zhang, Yuhong; Gao, Shan (2016). Asymmetry of upper ocean salinity response to the Indian Ocean dipole events as seen from ECCO simulation, Acta Oceanologica Sinica, 7 (35), 42-49, 10.1007/s13131-016-0904-z. Title: Asymmetry of upper ocean brininess response to the amerind Ocean dipole events as seen from ECCO simulation Type: Journal article Publication: Acta Oceanologica Sinica Author(s): Zhang, Ying ; Du, Yan ; Zhang, Yuhong ; Gao, Shan Year: 2016 Formatted Citation: Zhang, Y., Y. Du, Y. Zhang, and S. Gao, 2016 : asymmetry of upper ocean salt answer to the indian Ocean dipole events as seen from ECCO model. Acta Oceanologica Sinica, 35 ( 7 ), 42-49, doi:10.1007/s13131-016-0904-z Abstract: The interannual unevenness of salt and associated ocean dynamics in the equatorial indian Ocean is analyzed using observations and numeral simulations by the Estimating the Circulation and Climate of the Ocean ( ECCO ) model. The results show that brininess anomalies in the upper ocean are asymmetrically associated with the indian Ocean dipole ( IOD ) events, with stronger response during their positive phases. further investigations reveal that zonal currents along the equator, the Wyrtki jets, dominate the brininess transport. During the positive IOD events, the Wyrtki jets have stronger westward anomalies. The positive lopsidedness of the IOD explains that the amplitude of the anomalous Wyrtki jets is stronger in the cocksure IOD events than that in the negative events. Keywords: ECCO Products Used: ECCO-KFSURL: https://doi.org/10.1007/s13131-016-0904-z Other URLs:
Chemke, R.; Kaspi, Y. (2016). The latitudinal dependence of the oceanic barotropic eddy kinetic energy and macroturbulence energy transport, Geophysical Research Letters, 6 (43), 2723-2731, 10.1002/2016GL067847. Title: The latitudinal addiction of the oceanic barotropic eddy kinetic energy and macroturbulence energy transmit Type: Journal article Publication: Geophysical Research Letters Author(s): Chemke, R. ; Kaspi, Y. Year: 2016 Formatted Citation: Chemke, R., and Y. Kaspi, 2016 : The latitudinal dependence of the oceanic barotropic eddy kinetic energy and macroturbulence energy ecstasy. Geophys. Res. Lett., 43 ( 6 ), 2723-2731, doi:10.1002/2016GL067847 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2016GL067847 Other URLs:
Yang, Qinghua; Losch, Martin; Losa, Svetlana N.; Jung, Thomas; Nerger, Lars (2016). Taking into Account Atmospheric Uncertainty Improves Sequential Assimilation of SMOS Sea Ice Thickness Data in an Ice-Ocean Model, Journal of Atmospheric and Oceanic Technology, 3 (33), 397-407, 10.1175/JTECH-D-15-0176.1. Title: Taking into Account Atmospheric Uncertainty Improves Sequential Assimilation of SMOS Sea Ice Thickness Data in an Ice-Ocean exemplary Type: Journal article Publication: Journal of Atmospheric and Oceanic Technology Author(s): Yang, Qinghua ; Losch, Martin ; Losa, Svetlana N. ; Jung, Thomas ; Nerger, Lars Year: 2016 Formatted Citation: Yang, Q., M. Losch, S. N. Losa, T. Jung, and L. Nerger, 2016 : Taking into Account Atmospheric Uncertainty Improves Sequential Assimilation of SMOS Sea Ice Thickness Data in an Ice-Ocean Model. Journal of Atmospheric and Oceanic Technology, 33 ( 3 ), 397-407, doi:10.1175/JTECH-D-15-0176.1 Abstract: Keywords: ECCO Products Used: ECCO2 ; SeaIceURL: http://journals.ametsoc.org/doi/10.1175/JTECH-D-15-0176.1 Other URLs:
Piecuch, Christopher Gilbert (2016). Understanding Tide Gauge Mean Sea Level Changes on the East Coast of North America. Title: Understanding Tide Gauge Mean Sea Level Changes on the East Coast of North America Type: thesis Publication: Author(s): Piecuch, Christopher Gilbert Year: 2016 Formatted Citation: Piecuch, C. G., 2016 : Understanding Tide Gauge Mean Sea Level Changes on the East Coast of North America., Kingston, RI doi:10.23860/diss-piecuch-christopher-2016. Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://digitalcommons.uri.edu/oa_diss/472 Other URLs:
Thompson, P R; Piecuch, C G; Merrifield, M A; McCreary, J P; Firing, E (2016). Forcing of recent decadal variability in the Equatorial and North Indian Ocean, Journal of Geophysical Research: Oceans, 9 (121), 6762-6778, 10.1002/2016JC012132. Title: Forcing of holocene decadal unevenness in the Equatorial and North indian Ocean Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Thompson, P R ; Piecuch, C G ; Merrifield, M A ; McCreary, J P ; Firing, E Year: 2016 Formatted Citation: Thompson, P. R., C. G. Piecuch, M. A. Merrifield, J. P. McCreary, and E. Firing, 2016 : force of late decadal variability in the Equatorial and North indian Ocean. J. Geophys. Res. Ocean., 121 ( 9 ), 6762-6778, doi:10.1002/2016JC012132 Abstract: Recent decadal sea surface altitude ( SSH ) variability across the Equatorial and North indian Ocean ( ENIO, north of 5°S ) is spatially coherent and related to a reverse in basin-scale, upper-ocean-temperature trends. analysis of ocean and forcing fields from a data-assimilating ocean deduction ( ECCOv4 ) suggests that two evenly important mechanisms of wind-driven estrus redistribution within the amerind Ocean account for a majority of the decadal variability. The first is the Cross-Equatorial Cell ( CEC ) forced by zonal wind stress coil at the equator. The tip stress coil variability relates to the military capability and situation of the Mascarene High, which is influenced by the phase of the indian Ocean Subtropical Dipole. The second mechanism is deep ( 700 molarity ) upwelling related to zonal wind stress at the equator that causes deep, cross-equatorial overturning due to the alone geometry of the washbasin. The CEC acts to cool the upper ocean throughout most of the inaugural decade of satellite altimetry, while the deep upwelling delays and then amplifies the effect of the CEC on SSH. During the subsequent ten, reversals in the storm anomalies drive calefacient of the amphetamine ocean and increasing SSH, with the effect of the cryptic upwelling leading the CEC. Keywords: 4215 Climate and interannual unevenness, 4513 Decadal ocean unevenness, 4556 Sea level : variations and mean, ECCOv4, indian Ocean, decadal unevenness, satellite altimetry, sea surface height ECCO Products Used: ECCO-V4URL: http://dx.doi.org/10.1002/2016JC012132 Other URLs:
Rodriguez, Angelica R; Mazloff, Matthew R; Gille, Sarah T (2016). An oceanic heat transport pathway to the Amundsen Sea Embayment, Journal of Geophysical Research: Oceans, 5 (121), 3337-3349, 10.1002/2015JC011402. Title: An oceanic heat transport pathway to the Amundsen Sea Embayment Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Rodriguez, Angelica R ; Mazloff, Matthew R ; Gille, Sarah T Year: 2016 Formatted Citation: Rodriguez, A. R., M. R. Mazloff, and S. T. Gille, 2016 : An oceanic hotness transportation nerve pathway to the Amundsen Sea Embayment. J. Geophys. Res. Ocean., 121 ( 5 ), 3337-3349, doi:10.1002/2015JC011402 Abstract: The Amundsen Sea Embayment ( ASE ) on the West Antarctic coastline has been identified as a region of accelerate glacial fade. A southern Ocean State Estimate ( SOSE ) is analyzed over the 2005-2010 time period in the Amundsen Sea region. The SOSE oceanic estrus budget reveals that the contribution of parameterized small-scale desegregate to the inflame message of the ASE waters is humble compared to advection and local air-sea heat flux, both of which contribute significantly to the heat subject of the ASE waters. Above the permanent pycnocline, the local air-sea flow dominates the heat budget and is controlled by seasonal worker changes in sea ice coverage. overall, between 2005 and 2010, the model shows a net heat in the surface above the pycnocline within the ASE. Sea water below the permanent pycnocline is isolated from the influence of air-sea heat fluxes, and therefore, the discrepancy of heat advection is the major contributor to increased oceanic heating system message of these waters. Oceanic transport of mass and heat into the ASE is dominated by the cross-shelf remark and is chiefly geostrophic below the permanent pycnocline. diagnosis of the time-mean SOSE vorticity budget along the continental shelf slope indicates that the cross-shelf transmit is sustained by vorticity remark from the localized wind-stress lock over the ledge fracture. Keywords: Arctic and Antarctic oceanography, Circumpolar Deep Water ( CDW ) conveyance, General circulation, Heat transport, Ice mechanics and air/sea/ice exchange processes, Ocean data acculturation and reanalysis, Ocean inflame budget, amundsen sea, continental shelf and gradient processes ECCO Products Used: SOSEURL: http://dx.doi.org/10.1002/2015JC011402 Other URLs:
Firing, Yvonne L; Chereskin, Teresa K; Watts, D Randolph; Mazloff, Matthew R (2016). Bottom pressure torque and the vorticity balance from observations in Drake Passage, Journal of Geophysical Research: Oceans, n/a-n/a, 10.1002/2016JC011682. Title: Bottom atmospheric pressure torsion and the vorticity balance from observations in Drake passage Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Firing, Yvonne L ; Chereskin, Teresa K ; Watts, D Randolph ; Mazloff, Matthew R Year: 2016 Formatted Citation: Firing, Y. L., T. K. Chereskin, D. R. Watts, and M. R. Mazloff, 2016 : bottom blackmail torsion and the vorticity balance from observations in Drake Passage. J. Geophys. Res. Ocean., n/a-n/a, doi:10.1002/2016JC011682 Abstract: The vorticity poise of the Antarctic Circumpolar Current in Drake Passage is examined using 4 years of observations from current- and pressure-recording inverted echo sounders. The time-varying vorticity, global and relative vorticity advection, and bottom press torsion are calculated in a two-dimensional range in the eddy-rich Polar Frontal Zone ( PFZ ). bottom blackmail torsion is besides estimated at sites across Drake Passage. Mean and eddy nonlinear relative vorticity advection terms dominate over analogue advection in the local ( 50-km scale ) vorticity budget in the PFZ, and are balanced to first order by the divergence of horizontal speed. Most of this discrepancy comes from the ageostrophic gradient flow, which besides provides a second-order allowance to the geostrophic relative vorticity advection. Bottom imperativeness torsion is approximately one-third the size of the local depth-integrated deviation. Although the cDrake speed fields exhibit significant turning with depth throughout Drake Passage even in the average, surface vorticity advection provides a reasonable representation of the depth-integrated vorticity symmetry. Observed near-bottom currents are strongly topographically steered, and buttocks press torques grow large where solid near-bottom flows cross steep topography at belittled angles. Upslope flow over the northern continental gradient dominates the bottom pressure torsion in cDrake, and the mean across this Drake Passage transect, 3 to 4 { \texttimes } 10-9 megabyte s-2, exceeds the hateful wind stress coil by a factor of 15-20. Keywords: Arctic and Antarctic oceanography, Eddies and mesoscale processes, Topographic/bathymetric interactions, Vorticity, south-polar, currents ECCO Products Used: SOSEURL: http://dx.doi.org/10.1002/2016JC011682 Other URLs:
Dushaw, Brian D.; Rehm, Eric (2016). Acoustic Tomography in Baffin Bay: A Preliminary Survey. Title: Acoustic Tomography in Baffin Bay : A Preliminary Survey Type: Report Publication: Author(s): Dushaw, Brian D. ; Rehm, Eric Year: 2016 Formatted Citation: Dushaw, B. D., and E. Rehm, 2016 : acoustic Tomography in Baffin Bay : A Preliminary Survey., Bergen, Norway, 34 pp. hypertext transfer protocol : //www.researchgate.net/profile/Eric_Rehm/publication/313844561_Acoustic_Tomography_in_Baffin_Bay_A_Preliminary_Survey/links/58aa48e7a6fdcc0e07982f9c/Acoustic-Tomography-in-Baffin-Bay-A-Preliminary-Survey.pdf. Abstract: Keywords: ECCO Products Used: ECCO2URL: https://www.researchgate.net/profile/Eric_Rehm/publication/313844561_Acoustic_Tomography_in_Baffin_Bay_A_Preliminary_Survey/links/58aa48e7a6fdcc0e07982f9c/Acoustic-Tomography-in-Baffin-Bay-A-Preliminary-Survey.pdf Other URLs:
Ngeve, Magdalene N; Van der Stocken, Tom; Menemenlis, Dimitris; Koedam, Nico; Triest, Ludwig (2016). Contrasting Effects of Historical Sea Level Rise and Contemporary Ocean Currents on Regional Gene Flow of Rhizophora racemosa in Eastern Atlantic Mangroves, PLoS ONE, 3 (11), e0150950, 10.1371/journal.pone.0150950. Title: Contrasting Effects of Historical Sea Level Rise and Contemporary Ocean Currents on Regional Gene Flow of Rhizophora racemosa in Eastern Atlantic Mangroves Type: Journal article Publication: PLoS ONE Author(s): Ngeve, Magdalene N ; Van five hundred Stocken, Tom ; Menemenlis, Dimitris ; Koedam, Nico ; Triest, Ludwig Year: 2016 Formatted Citation: Ngeve, M. N., T. Van five hundred Stocken, D. Menemenlis, N. Koedam, and L. Triest, 2016 : Contrasting Effects of Historical Sea Level Rise and Contemporary Ocean Currents on Regional Gene Flow of Rhizophora racemosa in Eastern Atlantic Mangroves. PLoS ONE, 11 ( 3 ), e0150950, doi:10.1371/journal.pone.0150950 Abstract: Mangroves are seafaring taxa through their hydrochorous propagules that have the potential to disperse over long distances. consequently, investigating their patterns of gene flow provides insights on the processes involved in the spatial genic structure of populations. The coastline of Cameroon has a detail geomorphologic history and coastal hydrology with complex contemporaneous patterns of ocean currents, which we hypothesize to have effects on the spatial shape and composition of contemporary mangroves within its spans. A total of 982 trees were sampled from 33 transects ( 11 sites ) in 4 estuaries. Using 11 polymorphic SSR markers, we investigated genetic diverseness and structure of Rhizophora racemosa, a widespread species in the region. genetic diversity was low to moderate and genetic differentiation between about all population pairs was significant. bayesian clustering analysis, PCoA, estimates of contemporary migration rates and recognition of barriers to gene flow were used and complemented with estimated dispersion trajectories of hourly released virtual propagules, using high-resolution surface stream from a mesoscale and tide-resolving ocean pretense. These indicate that the Cameroon Volcanic Line ( CVL ) is not a contemporary barrier to gene hang. Rather, the Inter-Bioko-Cameroon ( IBC ) corridor, formed due to sea charge rise, allows for connectivity between two mangrove areas that were isolated during frigid times by the CVL. Genetic data and numeral ocean simulations indicated that an oceanic convergence zone near the Cameroon Estuary building complex ( CEC ) presents a strong barrier to gene flow, resulting in familial discontinuities between the mangrove areas on either side. This convergence did not result in higher genic diverseness at the CEC as we had hypothesized. In conclusion, the familial structure of Rhizophora racemosa is maintained by the contrasting effects of the contemporary oceanic convergence and historical climate change-induced sea level resurrect. Keywords: ECCO Products Used: LLC_hiresURL: http://dx.doi.org/10.1371%2Fjournal.pone.0150950 Other URLs:
Evans, Dafydd Gwyn (2016). Heating and Cooling or Ebbing and Flowing? Oceanic Change from a Thermohaline Perspective. Title: Heating and Cooling or Ebbing and Flowing ? Oceanic Change from a Thermohaline Perspective Type: thesis Publication: Author(s): Evans, Dafydd Gwyn Year: 2016 Formatted Citation: Evans, D. G., 2016 : heat and Cooling or Ebbing and Flowing ? Oceanic Change from a Thermohaline Perspective., 131 pp. hypertext transfer protocol : //eprints.soton.ac.uk/403352/. Abstract: Keywords: ECCO Products Used: ECCO-V4URL: https://eprints.soton.ac.uk/403352/ Other URLs:
Chien, Chia-Te; Mackey, Katherine R M; Dutkiewicz, Stephanie; Mahowald, Natalie M; Prospero, Joseph M; Paytan, Adina (2016). Effects of African dust deposition on phytoplankton in the western tropical Atlantic Ocean off Barbados, Global Biogeochemical Cycles, 5 (30), 716-734, 10.1002/2015GB005334. Title: Effects of african dust deposition on phytoplankton in the western tropical Atlantic Ocean off Barbados Type: Journal article Publication: Global Biogeochemical Cycles Author(s): Chien, Chia-Te ; Mackey, Katherine R M ; Dutkiewicz, Stephanie ; Mahowald, Natalie M ; Prospero, Joseph M ; Paytan, Adina Year: 2016 Formatted Citation: Chien, C., K. R. M. Mackey, S. Dutkiewicz, N. M. Mahowald, J. M. Prospero, and A. Paytan, 2016 : Effects of african dust deposition on phytoplankton in the western tropical Atlantic Ocean off Barbados. Global Biogeochemical Cycles, 30 ( 5 ), 716-734, doi:10.1002/2015GB005334 Abstract: Bioassay incubation experiments conducted with nutrients and local anesthetic atmospheric aerosol amendments indicate that phosphorus ( P ) handiness limit phytoplankton growth in the low-nutrient low-chlorophyll ( LNLC ) ocean off Barbados. Atmospheric deposit provides a relatively big influx of new nutrients and trace metals to the surface ocean in this area in comparison to other nutrient sources. however, the impingement on native phytoplankton is muted due to the high proportion of nitrogen ( N ) to P ( NO3 : SRP > 40 ) and the low P solubility of these aerosols. Atmospheric deposit induces P limitation in this LNLC region by adding more N and iron ( Fe ) relative to P. This favors the growth of Prochlorococcus, a genus characterized by first gear P requirements and highly efficient P skill mechanisms. A ball-shaped three-dimensional marine ecosystem model that includes species-specific phytoplankton elemental quotas/stoichiometry and the atmospheric deposition of N, P, and Fe supports this decision. future increases in aerosol N load may therefore influence phytoplankton residential district structure in other LNLC areas, thereby affecting the biological pump and associated carbon segregation. Keywords: 0414 Biogeochemical cycles, 0470 Nutrients and nutrient cycle, 4801 Aerosols, 4858 Population dynamics and ecology, Barbados, and model, atmospheric deposition, nutrient restriction, phytoplankton community structure, processes ECCO Products Used: ECCO-V2URL: http://dx.doi.org/10.1002/2015GB005334 Other URLs: hypertext transfer protocol : //doi.wiley.com/10.1002/2015GB005334
Wiese, David N.; Landerer, Felix W.; Watkins, Michael M. (2016). Quantifying and reducing leakage errors in the JPL RL05M GRACE mascon solution, Water Resources Research, 9 (52), 7490-7502, 10.1002/2016WR019344. Title: Quantifying and reducing escape errors in the JPL RL05M GRACE mascon solution Type: Journal article Publication: Water Resources Research Author(s): Wiese, David N. ; Landerer, Felix W. ; Watkins, Michael M. Year: 2016 Formatted Citation: Wiese, D. N., F. W. Landerer, and M. M. Watkins, 2016 : quantify and reducing escape errors in the JPL RL05M GRACE mascon solution. Water Resources Research, 52 ( 9 ), 7490-7502, doi:10.1002/2016WR019344 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2016WR019344 Other URLs:
Wińska, Małgorzata; Nastula, Jolanta; Kołaczek, Barbara (2016). Assessment of the Global and Regional Land Hydrosphere and Its Impact on the Balance of the Geophysical Excitation Function of Polar Motion, Acta Geophysica, 1 (64), 270-292, 10.1515/acgeo-2015-0041. Title: Assessment of the Global and Regional Land Hydrosphere and Its shock on the Balance of the Geophysical Excitation Function of Polar Motion Type: Journal article Publication: Acta Geophysica Author(s): Wińska, Małgorzata ; Nastula, Jolanta ; Kołaczek, Barbara Year: 2016 Formatted Citation: Wińska, M., J. Nastula, and B. Kołaczek, 2016 : assessment of the Global and Regional Land Hydrosphere and Its shock on the Balance of the Geophysical Excitation Function of Polar Motion. Acta Geophysica, 64 ( 1 ), 270-292, doi:10.1515/acgeo-2015-0041 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: http://link.springer.com/10.1515/acgeo-2015-0041 Other URLs:
Musgrave, R C; Pinkel, R; MacKinnon, J A; Mazloff, Matthew R; Young, W R (2016). Stratified tidal flow over a tall ridge above and below the turning latitude, Journal of Fluid Mechanics (793), 933-957, 10.1017/jfm.2016.150. Title: Stratified tidal hang over a tall ridge above and below the turn latitude Type: Journal article Publication: Journal of Fluid Mechanics Author(s): Musgrave, R C ; Pinkel, R ; MacKinnon, J A ; Mazloff, Matthew R ; Young, W R Year: 2016 Formatted Citation: Musgrave, R. C., R. Pinkel, J. A. MacKinnon, M. R. Mazloff, and W. R. Young, 2016 : Stratified tidal flow over a tall ridge above and below the turning latitude. Journal of Fluid Mechanics, 793, 933-957, doi:10.1017/jfm.2016.150 Abstract: n/a Keywords: ECCO Products Used: SOSEURL: http://journals.cambridge.org/article_S0022112016001506 Other URLs:
Nicholson, D P; Khatiwala, S; Heimbach, P (2016). Noble gas tracers of ventilation during deep-water formation in the Weddell Sea. Title: Noble gas tracers of breathing during deep-water formation in the Weddell Sea Type: Journal article Publication: Author(s): Nicholson, D P ; Khatiwala, S ; Heimbach, P Year: 2016 Formatted Citation: Nicholson, D. P., S. Khatiwala, and P. Heimbach, 2016 : noble flatulence tracers of public discussion during deep-water formation in the Weddell Sea., 35 ( 1 ), 12011-12019 Abstract: Keywords: ECCO Products Used: URL: Other URLs:
Dobslaw, Henryk; Bergmann-Wolf, Inga; Forootan, Ehsan; Dahle, Christoph; Mayer-Gürr, Torsten; Kusche, Jürgen; Flechtner, Frank (2016). Modeling of present-day atmosphere and ocean non-tidal de-aliasing errors for future gravity mission simulations, Journal of Geodesy, 5 (90), 423-436, 10.1007/s00190-015-0884-3. Title: Modeling of contemporary atmosphere and ocean non-tidal de-aliasing errors for future gravity mission simulations Type: Journal article Publication: Journal of Geodesy Author(s): Dobslaw, Henryk ; Bergmann-Wolf, Inga ; Forootan, Ehsan ; Dahle, Christoph ; Mayer-Gürr, Torsten ; Kusche, Jürgen ; Flechtner, Frank Year: 2016 Formatted Citation: Dobslaw, H., I. Bergmann-Wolf, E. Forootan, C. Dahle, T. Mayer-Gürr, J. Kusche, and F. Flechtner, 2016 : model of contemporary atmosphere and ocean non-tidal de-aliasing errors for future gravity mission simulations. Journal of Geodesy, 90 ( 5 ), 423-436, doi:10.1007/s00190-015-0884-3 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://link.springer.com/10.1007/s00190-015-0884-3 Other URLs:
Pillar, Helen R; Heimbach, Patrick; Johnson, Helen L; Marshall, David P (2016). Dynamical attribution of recent variability in Atlantic overturning, Journal of Climate, 9 (29), 3339-3352, 10.1175/JCLI-D-15-0727.1. Title: Dynamical attribution of holocene unevenness in Atlantic overturn Type: Journal article Publication: Journal of Climate Author(s): Pillar, Helen R ; Heimbach, Patrick ; Johnson, Helen L ; Marshall, David P Year: 2016 Formatted Citation: Pillar, H. R., P. Heimbach, H. L. Johnson, and D. P. Marshall, 2016 : dynamic attribution of recent unevenness in Atlantic overturn. J. Clim., 29 ( 9 ), 3339-3352, doi:10.1175/JCLI-D-15-0727.1 Abstract: Keywords: Atmosphere-ocean interaction, Circulation/ Dynamics ECCO Products Used: AdjointURL: http://journals.ametsoc.org/doi/abs/10.1175/JCLI-D-15-0727.1 Other URLs:
Resplandy, L.; Keeling, R. F.; Stephens, B. B.; Bent, J. D.; Jacobson, A.; Rödenbeck, C.; Khatiwala, S. (2016). Constraints on oceanic meridional heat transport from combined measurements of oxygen and carbon, Climate Dynamics, 9-10 (47), 3335-3357, 10.1007/s00382-016-3029-3. Title: Constraints on oceanic meridional heat transport from unite measurements of oxygen and carbon Type: Journal article Publication: Climate Dynamics Author(s): Resplandy, L. ; Keeling, R. F. ; Stephens, B. B. ; Bent, J. D. ; Jacobson, A. ; Rödenbeck, C. ; Khatiwala, S. Year: 2016 Formatted Citation: Resplandy, L., R. F. Keeling, B. B. Stephens, J. D. Bent, A. Jacobson, C. Rödenbeck, and S. Khatiwala, 2016 : Constraints on oceanic meridional inflame transport from combine measurements of oxygen and carbon. Climate Dynamics, 47 ( 9-10 ), 3335-3357, doi:10.1007/s00382-016-3029-3 Abstract: Despite its importance to the climate organization, the ocean meridional heat enchant is still ill quantified. We identify a solid connect between the northerly hemisphere deficit in atmospheric electric potential oxygen ( APO = O $ $ _2 $ $ 2 + 1.1 $ $ \times $ $ × CO $ $ _2 $ $ 2 ) and the asymmetry in meridional heat transportation between northern and southern hemispheres. The late aircraft observations from the HIPPO campaign reveal a northern APO deficit in the tropospheric column of $ $ – $ $ – 10.4 $ $ \pm $ $ ± 1.0 per million, double the value at the surface and more example of large-scale air-sea fluxes. The ball-shaped north ocean heat tape drive asymmetry necessity to explain the watch APO deficit is about 0.7-1.1 PW, which corresponds to the upper range of estimates from hydrographic sections and atmospheric reanalyses. Keywords: HIPPO aircraft campaign, Hemispheric asymmetry, Ocean heat tape drive, Potential oxygen ECCO Products Used: ECCO-V3 URL: Other URLs:
Danabasoglu, Gokhan; Yeager, Steve G; Kim, Who M; Behrens, Erik; Bentsen, Mats; Bi, Daohua; Biastoch, Arne; Bleck, Rainer; Böning, Claus; Bozec, Alexandra; Canuto, Vittorio M; Cassou, Christophe; Chassignet, Eric; Coward, Andrew C; Danilov, Sergey; Diansky, Nikolay; Drange, Helge; Farneti, Riccardo; Fernandez, Elodie; Fogli, Pier Giuseppe; Forget, Gael; Fujii, Yosuke; Griffies, Stephen M; Gusev, Anatoly; Heimbach, Patrick; Howard, Armando; Ilicak, Mehmet; Jung, Thomas; Karspeck, Alicia R; Kelley, Maxwell; Large, William G; Leboissetier, Anthony; Lu, Jianhua; Madec, Gurvan; Marsland, Simon J; Masina, Simona; Navarra, Antonio; Nurser, A J George; Pirani, Anna; Romanou, Anastasia; Salas y Mélia, David; Samuels, Bonita L; Scheinert, Markus; Sidorenko, Dmitry; Sun, Shan; Treguier, Anne-Marie; Tsujino, Hiroyuki; Uotila, Petteri; Valcke, Sophie; Voldoire, Aurore; Wang, Qiang; Yashayaev, Igor (2016). North Atlantic simulations in Coordinated Ocean-ice Reference Experiments phase II (CORE-II). Part II: Inter-annual to decadal variability, Ocean Modelling (97), 65-90, 10.1016/j.ocemod.2015.11.007. Title: North Atlantic simulations in Coordinated Ocean-ice Reference Experiments phase II ( CORE-II ). Part II : Inter-annual to decadal variability Type: Journal article Publication: Ocean Modelling Author(s): Danabasoglu, Gokhan ; Yeager, Steve G ; Kim, Who M ; Behrens, Erik ; Bentsen, Mats ; Bi, Daohua ; Biastoch, Arne ; Bleck, Rainer ; Böning, Claus ; Bozec, Alexandra ; Canuto, Vittorio M ; Cassou, Christophe ; Chassignet, Eric ; Coward, Andrew C ; Danilov, Sergey ; Diansky, Nikolay ; Drange, Helge ; Farneti, Riccardo ; Fernandez, Elodie ; Fogli, Pier Giuseppe ; Forget, Gael ; Fujii, Yosuke ; Griffies, Stephen M ; Gusev, Anatoly ; Heimbach, Patrick ; Howard, Armando ; Ilicak, Mehmet ; Jung, Thomas ; Karspeck, Alicia R ; Kelley, Maxwell ; Large, William G ; Leboissetier, Anthony ; Lu, Jianhua ; Madec, Gurvan ; Marsland, Simon J ; Masina, Simona ; Navarra, Antonio ; Nurser, A J George ; Pirani, Anna ; Romanou, Anastasia ; Salas y Mélia, David ; Samuels, Bonita L ; Scheinert, Markus ; Sidorenko, Dmitry ; Sun, Shan ; Treguier, Anne-Marie ; Tsujino, Hiroyuki ; Uotila, Petteri ; Valcke, Sophie ; Voldoire, Aurore ; Wang, Qiang ; Yashayaev, Igor Year: 2016 Formatted Citation: Danabasoglu, G. and Coauthors, 2016 : North Atlantic simulations in Coordinated Ocean-ice Reference Experiments phase II ( CORE-II ). Part II : Inter-annual to decadal unevenness. Ocean Modelling, 97, 65-90, doi:10.1016/j.ocemod.2015.11.007 Abstract: Simulated inter-annual to decadal unevenness and trends in the North Atlantic for the 1958-2007 period from twenty dollar bill global ocean – sea-ice copulate models are presented. These simulations are performed as contributions to the second phase of the Coordinated Ocean-ice Reference Experiments ( CORE-II ). The study is Part II of our companion newspaper ( Danabasoglu et al., 2014 ) which documented the mean states in the North Atlantic from the same models. A major focus of the confront report is the representation of Atlantic meridional overturning circulation ( AMOC ) variability in the participate models. Relationships between AMOC variability and those of some other related variables, such as subpolar assorted layer depths, the North Atlantic Oscillation ( NAO ), and the Labrador Sea upper-ocean hydrographic properties, are besides investigated. In general, AMOC variability shows three distinct stages. During the first stagecoach that lasts until the mid- to late-1970s, AMOC is relatively sweetheart, remaining lower than its long-run ( 1958-2007 ) intend. Thereafter, AMOC intensifies with maximum transports achieved in the mid- to late-1990s. This enhancement is then followed by a weakening tendency until the end of our consolidation period. This sequence of low frequency AMOC unevenness is reproducible with previous studies. Regarding tone of AMOC between about the mid-1970s and the mid-1990s, our results support a previously identified variability mechanism where AMOC intensification is connected to increased deep water formation in the subpolar North Atlantic, driven by NAO-related surface fluxes. The simulations tend to show general agreement in their temporal representations of, for example, AMOC, sea surface temperature ( SST ), and subpolar shuffle level depth variabilities. In particular, the observe variability of the North Atlantic SSTs is captured well by all models. These findings indicate that simulated variability and trends are primarily dictated by the atmospheric datasets which include the influence of ocean dynamics from nature superimposed onto anthropogenetic effects. Despite these general agreements, there are many differences among the model solutions, peculiarly in the spatial structures of unevenness patterns. For case, the location of the maximum AMOC unevenness differs among the models between Northern and Southern Hemispheres. Keywords: Atlantic meridional overturning circulation variab, Atmospheric coerce, Global ocean – sea-ice model, Inter-annual to decadal variability and mechanisms, Ocean model comparisons, Variability in the North Atlantic ECCO Products Used: ECCO-V4URL: http://www.sciencedirect.com/science/article/pii/S1463500315002231 Other URLs:
Ubelmann, Clement; Cornuelle, Bruce; Fu, Lee-Lueng (2016). Dynamic Mapping of Along-Track Ocean Altimetry: Method and Performance from Observing System Simulation Experiments, Journal of Atmospheric and Oceanic Technology, 8 (33), 1691-1699, 10.1175/JTECH-D-15-0163.1. Title: Dynamic Mapping of Along-Track Ocean Altimetry : Method and Performance from Observing System Simulation Experiments Type: Journal article Publication: Journal of Atmospheric and Oceanic Technology Author(s): Ubelmann, Clement ; Cornuelle, Bruce ; Fu, Lee-Lueng Year: 2016 Formatted Citation: Ubelmann, C., B. Cornuelle, and L. Fu, 2016 : Dynamic Mapping of Along-Track Ocean Altimetry : Method and Performance from Observing System Simulation Experiments. Journal of Atmospheric and Oceanic Technology, 33 ( 8 ), 1691-1699, doi:10.1175/JTECH-D-15-0163.1 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/10.1175/JTECH-D-15-0163.1 Other URLs:
D’Addezio, Joseph Matthew (2016). Utilization Of Satellite-Derived Salinity To Study Indian Ocean Climate Variability. Title: Utilization Of Satellite-Derived Salinity To Study Indian Ocean Climate Variability Type: thesis Publication: Author(s): D’Addezio, Joseph Matthew Year: 2016 Formatted Citation: D’Addezio, J. M., 2016 : utilization Of Satellite-Derived Salinity To Study Indian Ocean Climate Variability. hypertext transfer protocol : //scholarcommons.sc.edu/etd/3772/. Abstract: Keywords: ECCO2 ECCO Products Used: ECCO2URL: https://scholarcommons.sc.edu/etd/3772/ Other URLs:
D’Addezio, Joseph M.; Subrahmanyam, Bulusu; Nyadjro, Ebenezer S.; Murty, V. S. N.; (2015). Seasonal Variability of Salinity and Salt Transport in the Northern Indian Ocean, Journal of Physical Oceanography, 7 (45), 1947-1966, 10.1175/JPO-D-14-0210.1. Title: Seasonal Variability of Salinity and Salt Transport in the Northern Indian Ocean Type: Journal article Publication: Journal of Physical Oceanography Author(s): D’Addezio, Joseph M. ; Subrahmanyam, Bulusu ; Nyadjro, Ebenezer S. ; Murty, V. S. N. ; Year: 2015 Formatted Citation: D’Addezio, J. M., B. Subrahmanyam, E. S. Nyadjro, V. S. N. Murty, J. M., 2015 : seasonal worker Variability of Salinity and Salt Transport in the Northern Indian Ocean. Journal of Physical Oceanography, 45 ( 7 ), 1947-1966, doi:10.1175/JPO-D-14-0210.1 Abstract: Keywords: ECCO2 ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/10.1175/JPO-D-14-0210.1 Other URLs:
Valett, Jacqueline Grace (2015). Reconciling diatom productivity and iron flux in the southern ocean, Georgia Tech Library. Title: Reconciling diatom productiveness and iron flux in the southerly ocean Type: thesis Publication: Georgia Tech Library Author(s): Valett, Jacqueline Grace Year: 2015 Formatted Citation: Valett, J.G., 2015 : Reconciling diatom productivity and iron flux in the southerly ocean, Georgia Tech Library Abstract: Iron plays an important character in the regulation of biological productiveness and the carbon cycle of the Southern Ocean. recently, synchrotron x ray spectromicroscopy revealed that molar cast-iron to silicon ( Fe : Si ) ratios in living diatom samples collected from come on waters and ice in the coastal Antarctic are significantly higher than reported dissolve Fe : Si ratios of Circumpolar Deep Water. Upwelling of Circumpolar Deep Water is a dominant reservoir of iron and silicon to coastal Southern Ocean airfoil waters. therefore with higher Fe : Si ratios, diatom production preferentially depletes dissolve iron relative to silicon, potentially contributing to perennial iron restriction in this region. Combining diatom and water column dissolved iron and silicon datasets with a bare inverse box model we estimate the regional coupled iron and silicon budget. Upwelling of subsurface waters can not supply adequate iron to balance the loss due to diatom production, which indicates that the closed budget requires extra cast-iron sources or extra methods of silicon removal. To evaluate the ecological and biogeochemical impacts of the senior high school Fe : Si proportion, a cubic ocean biogeochemistry and ecosystem model is used to simulate the sensitivity of ocean productiveness and alimentary cycling to a wide range of Fe : Si ratios in model diatoms. The Fe : Si ratio of diatoms regulates the surface iron and macronutrient distribution in huge regions beyond the southern Ocean. A globally higher Fe : Si ratio strongly decreases subpolar productivity and is partially compensated by the moderate increase in subtropical productivity. Our results indicate that the Fe : Si proportion of diatoms has a ball-shaped shock controlling the distribution of both micro- and macro-nutrients and consociate biological production. Keywords: ECCO Products Used: ECCO-V3URL: https://smartech.gatech.edu/handle/1853/53608 Other URLs:
Valsala, Vinu; Murtugudde, Raghu (2015). Mesoscale and intraseasonal air–sea CO2 exchanges in the western Arabian Sea during boreal summer, Deep Sea Research Part I: Oceanographic Research Papers (103), 101-113, 10.1016/j.dsr.2015.06.001. Title: Mesoscale and intraseasonal air–sea CO2 exchanges in the western Arabian Sea during boreal summer Type: Journal article Publication: Deep Sea Research Part I : Oceanographic Research Papers Author(s): Valsala, Vinu ; Murtugudde, Raghu Year: 2015 Formatted Citation: Valsala, V., R. Murtugudde, Mesoscale and intraseasonal air–sea CO2 exchanges in the western Arabian Sea during boreal summer, Deep Sea Research Part I : Oceanographic Research Papers, 103, 101-113, department of the interior : 10.1016/j.dsr.2015.06.001 Abstract: Intraseasonal unevenness, considered a coupled phenomenon, typically occurs in the 20-to-90 day-band and is seen in several of the air–sea interaction parameters over the indian Ocean. The corresponding variability in the air–sea CO2 exchanges and oceanic pCO2 are not widely studied. In this study, we focus on the boreal summer season to find that there is a potent air–sea interaction of carbon motorbike over the Somali region of the western Arabian Sea where the intraseasonal unevenness during this season is clearly discernible in the intense unevenness in winds, the intensity of the upwelling and the development of meso-scale eddies. The oceanic pCO2 variability in this intraseasonal band over the Somali region is besides unusually coherent with the early variables and is found to be driven by ocean surface temperatures ( SST ) albeit with a counteract but relatively minor charm from the dynamics of dissolved inorganic carbon ( DIC ). The 20-to-90 day-band in pCO2 accounts for about 40 % of the monthly beggarly unevenness of the sea-to-air CO2 flux of this region in boreal summer. ocean moral force operate on the atmospheric wind response at these mesoscales has been reported ahead and this study demonstrates that the ocean dynamics besides control the seawater pCO2 and the air–sea CO2 fluxes in this region. early regions with exchangeable meso-scale dynamics must be analyzed for processes that determine air–sea CO2 exchanges and to determine whether the mesoscale fluxes contribute to the low-frequency CO2 fluxes. The function of the intraseasonal variability in atmospheric pCO2 in this exchange is not quantified here due to the miss of data at such high resolutions and needs to be considered in farther experimental and modeling efforts. Keywords: ECCO Products Used: ECCO2URL: https://linkinghub.elsevier.com/retrieve/pii/S0967063715001053 Other URLs:
Raghukumar, Kaustubha; Edwards, Christopher A.; Goebel, Nicole L.; Broquet, Gregoire; Veneziani, Milena; Moore, Andrew M.; Zehr, Jon P. (2015). Impact of assimilating physical oceanographic data on modeled ecosystem dynamics in the California Current System, Progress in Oceanography (18), 546-558, 10.1016/j.pocean.2015.01.004. Title: Impact of assimilating physical oceanographic data on model ecosystem dynamics in the California Current system Type: Journal article Publication: Progress in Oceanography Author(s): Raghukumar, Kaustubha ; Edwards, Christopher A. ; Goebel, Nicole L. ; Broquet, Gregoire ; Veneziani, Milena ; Moore, Andrew M. ; Zehr, Jon P. Year: 2015 Formatted Citation: Raghukumar, K., C.A. Edwards, N.L. Goebel, G. Broquet, M. Veneziani, A.M. Moore, and J.P. Zehr, 2015 : shock of assimilating physical oceanographic data on modeled ecosystem dynamics in the California Current System, Progress in Oceanography, 138, 546-558, department of the interior : 10.1016/j.pocean.2015.01.004 Abstract: A method to model ocean ecosystems using data-constrained physical circulation estimates is investigated. physical oceanographic datum is assimilated into a regional Ocean Modeling System implementation of the California Current System using an incremental four-dimensional Variational method. The resulting state estimate drives a complex, self-assembling ocean ecosystem model for the year 2003, and results are evaluated against SeaWiFS surface and CalCOFI subsurface observations and with ecosystem model output driven by an unconstrained physical model. While physical data assimilation improves correlation with observations, this method besides drives raised levels of phytoplankton standing neckcloth, leading to a large bias particularly in regions of low mean concentration. We identify two causes for this addition : biological rectification of fluctuating upright food enchant ascribable to gravity wave generation at assimilation cycle low-level formatting and increased food discrepancy on density surfaces. We investigate one and propose early potential remedies for these deleterious side-effects of this data assimilation method. Keywords: ECCO Products Used: ECCO-V3URL: https://linkinghub.elsevier.com/retrieve/pii/S0079661115000063 Other URLs:
Bentel, K.; Landerer, F.W.; Boening, C. (2015). Monitoring Atlantic overturning circulation and transport variability with GRACE-type ocean bottom pressure observations – a sensitivity study, Ocean Science, 6 (11), 953-963, 10.5194/os-11-953-2015. Title: Monitoring Atlantic overturning circulation and transport unevenness with GRACE-type ocean bottom imperativeness observations – a sensitivity report Type: Journal article Publication: Ocean Science Author(s): Bentel, K. ; Landerer, F.W. ; Boening, C. Year: 2015 Formatted Citation: Bentel, K., F.W. Landerer, and C. Boening, 2015 : Monitoring Atlantic overturning circulation and enchant unevenness with GRACE-type ocean bottom atmospheric pressure observations – a sensitivity study, Ocean Science, 11 ( 6 ), 953-963, department of the interior : 10.5194/os-11-953-2015 Abstract: The Atlantic Meridional Overturning Circulation ( AMOC ) is a key mechanism for large-scale northbound heat transmit and therefore plays an important role for global climate. relatively warm water is transported north in the amphetamine layers of the North Atlantic Ocean and, after cooling at subpolar latitudes, sinks down and is transported binding south in the deeper limb of the AMOC. The utility of in situ ocean bottomland pressure ( OBP ) observations to infer AMOC changes at individual latitudes has been characterized in the recent literature using end product from ocean models. We extend the analysis and examine the utility program of space-based observations of time-variable gravity and the inversion for ocean bottom pressure to monitor AMOC changes and unevenness between 20 and 60° N. Consistent with previous results, we find a strong correlation coefficient between the AMOC bespeak and OBP variations, chiefly along the western slope of the Atlantic Basin. We then use synthetic OBP data – smoothed and filtered to resemble the resolution of the GRACE ( Gravity Recovery and Climate Experiment ) graveness mission, but without errors – and reconstruct geostrophic AMOC transport. Due to the coarse resolution of GRACE-like OBP fields, we find that escape of signal across the footprint slopes of the ocean basin is a significant challenge at certain latitudes. Transport signal rms is of a alike order of order of magnitude as erroneousness rms for the reconstructed prison term series. however, the interannual AMOC anomaly time series can be recovered from 20 years of monthly GRACE-like OBP fields with errors less than 1 sverdrup in many locations. Keywords: ECCO Products Used: ECCO2URL: https://os.copernicus.org/articles/11/953/2015/ Other URLs:
Bonin, J. A.; Chambers, D. P. (2015). Quantifying the resolution level where the GRACE satellites can separate Greenland’s glacial mass balance from surface mass balance, The Cryosphere, 5 (9), 1761-1772, 10.5194/tc-9-1761-2015. Title: Quantifying the resolution floor where the GRACE satellites can separate Greenland ’ s frigid mass remainder from surface aggregate poise Type: Journal article Publication: The Cryosphere Author(s): Bonin, J. A. ; Chambers, D. P. Year: 2015 Formatted Citation: Bonin, J. A., and D. P. Chambers, 2015 : Quantifying the resolution level where the GRACE satellites can separate Greenland ‘s arctic aggregate balance wheel from open mass counterweight. Cryosph., 9 ( 5 ), 1761-1772, doi:10.5194/tc-9-1761-2015 Abstract: Abstract. Mass exchange over Greenland can be caused by either changes in the frigid moral force mass libra ( DMB ) or the come on mass libra ( SMB ). The GRACE satellite gravity mission can not directly separate the two physical causes because it measures the kernel of the stallion mass column with limited spatial resolution. We demonstrate one theoretical way to indirectly offprint accumulative SMB from DMB with GRACE, using a least square anastrophe technique with cognition of the location of the glaciers. however, we find that the specify 60 × 60 ball-shaped harmonic representation of current GRACE datum does not provide sufficient resolution to adequately accomplish the undertaking. We determine that at a maximal degree/order of 90 × 90 or above, a noise-free gravity measurement could theoretically separate the SMB from DMB signals. however, current GRACE satellite errors are besides large at present to separate the signals. A noise reduction of a factor of 10 at a solution of 90 × 90 would provide the accuracy needed for the interannual accumulative SMB and DMB to be accurately separated. Keywords: ECCO Products Used: ECCO-KFSURL: https://tc.copernicus.org/articles/9/1761/2015/ Other URLs:
Makowski, Jessica K.; Chambers, Don P.; Bonin, Jennifer A. (2015). Using ocean bottom pressure from the gravity recovery and climate experiment (GRACE) to estimate transport variability in the southern Indian Ocean, Journal of Geophysical Research: Oceans, 6 (120), 4245-4259, 10.1002/2014JC010575. Title: Using ocean bottom pressure from the gravity convalescence and climate experiment ( GRACE ) to estimate ecstasy unevenness in the southern indian ocean Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Makowski, Jessica K. ; Chambers, Don P. ; Bonin, Jennifer A. Year: 2015 Formatted Citation: Makowski, J. K., D. P. Chambers, and J. A. Bonin, 2015 : Using ocean penetrate atmospheric pressure from the gravity recovery and climate experiment ( GRACE ) to estimate transport variability in the southerly I ndian O cean. J. Geophys. Res. Ocean., 120 ( 6 ), 4245-4259, doi:10.1002/2014JC010575 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: https://onlinelibrary.wiley.com/doi/abs/10.1002/2014JC010575 Other URLs:
Keating, Shane R.; Smith, K. Shafer (2015). Upper ocean flow statistics estimated from superresolved sea-surface temperature images, Journal of Geophysical Research: Oceans, 2 (120), 1197-1214, 10.1002/2014JC010357. Title: Upper ocean flow statistics estimated from superresolved sea-surface temperature images Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Keating, Shane R. ; Smith, K. Shafer Year: 2015 Formatted Citation: Keating, S. R., and K. S. Smith, 2015 : upper berth ocean flow statistics estimated from superresolved sea-surface temperature images. J. Geophys. Res. Ocean., 120 ( 2 ), 1197-1214, doi:10.1002/2014JC010357 Abstract: Ocean turbulence on scales of 10–50 kilometer plays a winder character in biogeochemical processes, frontal dynamics, and tracer transportation in the upper ocean, but our sympathy of these scales is limited because they are besides little to be resolved using extant satellite altimetry products. By contrast, microwave imagination of the sea-surface temperature sphere does resolve these scales and can be used to estimate the upper ocean flow field due to the hard correlation between the surface density sphere and the inner likely vorticity. however, because the open concentration ( or temperature ) is a smooth version of the geostrophic stream function, the resulting speed field estimates are limited to scales of 100–300 km in the inaugural few hundred meters of the urine column. A method is proposed for generating superresolved sea-surface temperature images using direct low-resolution ( microwave ) temperature observations in combination with an empiric parameterization for the unresolved scales modeled on statistical data from high-resolution ( infrared ) imagination. Because the method acting relies lone on the statistics of the small-scale field, it is insensitive to data outages due to cloud covering that affect infrared observations. The method acting enhances the effective resolution of the temperature images by exploiting the consequence of spatial aliasing and generates an optimum estimate of the small-scale temperature field using standard bayesian inference. The technique is tested in quasigeostrophic simulations driven by realistic climatological fleece and stratification profiles for three contrasting regions at high, middle, and humble latitudes. The resulting superresolved sea-surface temperature images are then used to estimate the three-dimensional speed discipline in the upper ocean on scales of 10–50 km. Keywords: ECCO Products Used: OCCAURL: http://doi.wiley.com/10.1002/2014JC010357 Other URLs:
Ferrari, Raffaele; Merrifield, Sophia T.; Taylor, John R. (2015). Shutdown of convection triggers increase of surface chlorophyll, Journal of Marine Systems (147), 116-122, 10.1016/j.jmarsys.2014.02.009. Title: Shutdown of convection triggers increase of surface chlorophyll Type: Journal article Publication: Journal of Marine Systems Author(s): Ferrari, Raffaele ; Merrifield, Sophia T. ; Taylor, John R. Year: 2015 Formatted Citation: Ferrari, R., S.T. Merrifield, and J.R. Taylor, 2015 : Shutdown of convection triggers increase of coat chlorophyll. Journal of Marine Systems, 147, 116-122, doi:10.1016/j.jmarsys.2014.02.009 Abstract: Keywords: ECCO Products Used: OCCAURL: https://linkinghub.elsevier.com/retrieve/pii/S0924796314000384 Other URLs:
Cole, Sylvia T; Wortham, Cimarron; Kunze, Eric; Owens, W Brechner (2015). Eddy stirring and horizontal diffusivity from Argo float observations: Geographic and depth variability, Geophysical Research Letters, 10 (42), 3989-3997, 10.1002/2015GL063827. Title: Eddy stirring and horizontal diffusivity from Argo float observations : Geographic and depth variability Type: Journal article Publication: Geophysical Research Letters Author(s): Cole, Sylvia T ; Wortham, Cimarron ; Kunze, Eric ; Owens, W Brechner Year: 2015 Formatted Citation: Cole, S. T., C. Wortham, E. Kunze, and W. B. Owens, 2015 : Eddy stirring and horizontal diffusivity from Argo float observations : Geographic and depth unevenness. Geophys. Res. Lett., 42 ( 10 ), 3989-3997, doi:10.1002/2015GL063827 Abstract: Stirring along isopycnals is a significant agent in determining the distribution of tracers within the ocean. Salinity anomalies on concentration surfaces from Argo float profiles are used to investigate horizontal touch and estimate eddy mixing lengths. Eddy mixing duration and speed fluctuations from the ECCO2 ball-shaped country estimate are used to estimate horizontal diffusivity at a 300 kilometer scale in the upper 2000 thousand with near-global coverage. Diffusivity varies by over two orders of magnitude with latitude, longitude, and depth. In all basins, diffusivity is elevated in zonal bands corresponding to impregnable current regions, including western boundary current extension regions, the Antarctic Circumpolar Current, and equatorial stream systems. The calculate mix lengths and diffusivities provide an observationally based data set that can be used to test and constrain predictions and parameterizations of eddy stimulate. Keywords: Argo, diffusivity, eddy touch, mixing length, spice ECCO Products Used: ECCO2URL: https://doi.org/10.1002/2015GL063827 Other URLs:
Dutkiewicz, Stephanie; Hickman, A E; Jahn, O; Gregg, W W; Mouw, C B; Follows, Michael J. (2015). Capturing optically important constituents and properties in a marine biogeochemical and ecosystem model, Biogeosciences, 14 (12), 4447-4481, 10.5194/bg-12-4447-2015. Title: Capturing optically important constituents and properties in a nautical biogeochemical and ecosystem model Type: Journal article Publication: Biogeosciences Author(s): Dutkiewicz, Stephanie ; Hickman, A E ; Jahn, O ; Gregg, W W ; Mouw, C B ; Follows, Michael J. Year: 2015 Formatted Citation: Dutkiewicz, S., A. E. Hickman, O. Jahn, W. W. Gregg, C. B. Mouw, and M. J. Follows, 2015 : Capturing optically important constituents and properties in a marine biogeochemical and ecosystem exemplar. Biogeosciences, 12 ( 14 ), 4447-4481, doi:10.5194/bg-12-4447-2015 Abstract: Keywords: ECCO Products Used: ECCO-V2URL: http://www.biogeosciences.net/12/4447/2015/ Other URLs:
Yang, Qinghua; Losa, Svetlana N.; Losch, Martin; Jung, Thomas; Nerger, Lars (2015). The role of atmospheric uncertainty in Arctic summer sea ice data assimilation and prediction, Quarterly Journal of the Royal Meteorological Society, 691 (141), 2314-2323, 10.1002/qj.2523. Title: The role of atmospheric doubt in Arctic summer ocean methamphetamine data assimilation and prediction Type: Journal article Publication: Quarterly Journal of the Royal Meteorological Society Author(s): Yang, Qinghua ; Losa, Svetlana N. ; Losch, Martin ; Jung, Thomas ; Nerger, Lars Year: 2015 Formatted Citation: Yang, Q., S. N. Losa, M. Losch, T. Jung, and L. Nerger, 2015 : The function of atmospheric doubt in Arctic summer ocean frost data assimilation and prediction. quarterly Journal of the Royal Meteorological Society, 141 ( 691 ), 2314-2323, doi:10.1002/qj.2523 Abstract: Keywords: ECCO Products Used: ECCO2 ; SeaIceURL: http://doi.wiley.com/10.1002/qj.2523 Other URLs:
Forget, Gaël; Ponte, Rui M (2015). The partition of regional sea level variability, Progress in Oceanography (137, Part), 173-195, 10.1016/j.pocean.2015.06.002. Title: The partition of regional sea charge variability Type: Journal article Publication: Progress in Oceanography Author(s): Forget, Gaël ; Ponte, Rui M Year: 2015 Formatted Citation: Forget, G., and R. M. Ponte, 2015 : The partition of regional sea flat unevenness. build up in Oceanography, 137, Part, 173-195, doi:10.1016/j.pocean.2015.06.002 Abstract: The existing altimetric record offers an unprecedented position of sea level ( ζ ) unevenness on a global scale for more than 2 decades. optimum inference from the data involves appropriate partition of signal and randomness, in terms of relevant scales, physical processes and forcing mechanisms. such division is achieved here through fitting a cosmopolitan circulation model to altimeter and other datasets to produce a “ best ” estimate of ζ variability directly forced by the atmosphere-the signal of basal interest hera. In this context noise comes chiefly from legal document errors and meso-scale eddies, as expected, but spatial polish efficaciously reduces this noise. A branch constraint is thus formulated to measure the fit to monthly, large-scale altimetric unevenness that unlike the daily, pointwise constraint shows a high signal-to-noise ratio proportion. The estimate is explored to gain penetration into dynamics, impel, and early factors controlling ζ variability. Contributions from thermo-steric, halo-steric and bottom pressure terms are all authoritative depending on region, but slopes of steric spectrum ( red ) and bottom coerce spectrum ( white ) are about invariant with latitude. much ζ variability can be represented by a seasonal worker motorbike and linear tendency, plus a few EOFs that can be associated with know modes of climate unevenness and/or with topographical controls. Both wind instrument and buoyancy pull are important. The reception is chiefly basin-bound in nature, but spotty patterns of propagation across washbasin boundaries are intelligibly present, with the Pacific being able to affect large portions of the indian and Atlantic basins, but the Atlantic affect by and large the Arctic. Keywords: ECCO Products Used: URL: http://www.sciencedirect.com/science/article/pii/S0079661115001354 Other URLs:
Quinn, Katherine J; Ponte, Rui M; Tamisiea, Mark E (2015). Impact of self-attraction and loading on Earth rotation, Journal of Geophysical Research: Solid Earth, 6 (120), 4510-4521, 10.1002/2015JB011980. Title: Impact of self-attraction and loading on Earth rotation Type: Journal article Publication: Journal of Geophysical Research : solid earth Author(s): Quinn, Katherine J ; Ponte, Rui M ; Tamisiea, Mark E Year: 2015 Formatted Citation: Quinn, K. J., R. M. Ponte, and M. E. Tamisiea, 2015 : affect of self-attraction and loading on Earth rotation. Journal of Geophysical Research : solid Earth, 120 ( 6 ), 4510-4521, doi:10.1002/2015JB011980 Abstract: The impact of self-attraction and loading ( SAL ) on Earth rotation has not been previously considered except at annual timescales. We estimate earth rotation excitations using models of atmospheric, oceanic, and land hydrology surface bulk variations and investigate the importance of including SAL over monthly to interannual timescales. We assess SAL effects in comparison with dim-witted bulk balance effects where final aggregate exchanged with the atmosphere and nation is distributed uniformly over the global ocean. For oceanic arctic gesture excitations, SAL impacts are authoritative even though mass balance affect is minor except at the annual period. This is true of global ( atmosphere + land + ocean ) arctic movement excitations as well, although the SAL impacts are smaller. When estimating length-of-day excitations, mass balance effects have a dominant impact, particularly for oceanic excitement. Although SAL can have a significant affect on estimated Earth rotation excitations, its consideration broadly did not improve comparisons with geodetic observations. This result may change in the future as coat mass models and Earth rotation observations improve. Keywords: 1218 Mass balance, 1223 Ocean/Earth/atmosphere/hydrosphere/cryosphere, 1239 Earth rotation variations, Earth rotation, length of day, arctic motion, self-attraction and load ECCO Products Used: URL: http://dx.doi.org/10.1002/2015JB011980 Other URLs:
Ron, Cyril; Vondrák, Jan; Chapanov, Yavor (2015). Atmospheric, oceanic and geomagnetic excitation of nutation, Proceedings of the IX Bulgarian-Serbian Astronomical Conference: Astroinformatics (IX BSACA), 15, 127-135. Title: Atmospheric, oceanic and geomagnetic excitation of nutation Type: Conference Proceedings Publication: Proceedings of the IX Bulgarian-Serbian Astronomical conference : Astroinformatics ( IX BSACA ) Author(s): Ron, Cyril ; Vondrák, Jan ; Chapanov, Yavor Year: 2015 Formatted Citation: Ron, C., J. Vondrák, and Y. Chapanov, 2015 : Atmospheric, oceanic and geomagnetic excitement of nutation. Proceedings of the IX Bulgarian-Serbian Astronomical conference : Astroinformatics ( IX BSACA ), M. K. Tsvetkov, M. S. Dimitrijević, O. Kounchev, D. Jevremović, and K. Tsvetkova, Eds. Astron. Soc. “ Rudjer Bošković ”, Sofia, Bulgaria ( 15 ), 127-135 pp. Abstract: We tested the hypothesis of Malkin ( 2013 ), who recently demonstrated that the watch changes of Free Core Nutation parameters ( phase, amplitude ) occur near the epoch of geomagnetic jerks ( rapid changes of the layman variations of geomagnetic airfield ). We found that if the numeric integration of Brzezinski broad-band Liouville equations of atmo- spheric/oceanic excitations is re-initialized at the epoch of geomagnetic jerks, the agreement between the integrated and observed celestial terminal offsets is improved ( Vondrák & Ron 2014 ). however, this set about assumes that the influence of geomagnetic jerks leads to a bit-by-bit change in the situation of celestial pole, which is physically not acceptable. Therefore we in- troduce a simple continuous excitation affair that hypothetically describes the influence of geomagnetic jerks, and leads to rapid but continuous changes of perch placement. The results of numerical integration of atmospheric/oceanic excitations plus this newly introduced excitation are then compared with the observe celestial pole offsets, and prove that the agreement is improved significantly. Keywords: ECCO Products Used: ECCO-KFSURL: http://hdl.handle.net/123456789/4188 Other URLs: hypertext transfer protocol : //elibrary.matf.bg.ac.rs/bitstream/handle/123456789/4188/17.pdf ? sequence=1, hypertext transfer protocol : //elibrary.matf.bg.ac.rs/handle/123456789/4188
Wang, Zeliang; Han, Guoqi; Dupont, Frederic (2015). Effects of Spectral Nudging on Oceanic States in a Coarse-Resolution Model, Atmosphere-Ocean, 3 (53), 351-362, 10.1080/07055900.2015.1050352. Title: Effects of Spectral Nudging on Oceanic States in a Coarse-Resolution Model Type: Journal article Publication: Atmosphere-Ocean Author(s): Wang, Zeliang ; Han, Guoqi ; Dupont, Frederic Year: 2015 Formatted Citation: Wang, Z., G. Han, and F. Dupont, 2015 : Effects of Spectral Nudging on Oceanic States in a Coarse-Resolution Model. Atmosphere-Ocean, 53 ( 3 ), 351-362, doi:10.1080/07055900.2015.1050352 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://www.tandfonline.com/doi/full/10.1080/07055900.2015.1050352 Other URLs:
Le Fouest, V.; Manizza, M.; Tremblay, B.; Babin, M. (2015). Modelling the impact of riverine DON removal by marine bacterioplankton on primary production in the Arctic Ocean, Biogeosciences, 11 (12), 3385-3402, 10.5194/bg-12-3385-2015. Title: Modelling the impact of riverine DON removal by marine bacterioplankton on primary output in the Arctic Ocean Type: Journal article Publication: Biogeosciences Author(s): Le Fouest, V. ; Manizza, M. ; Tremblay, B. ; Babin, M. Year: 2015 Formatted Citation: Le Fouest, V., M. Manizza, B. Tremblay, and M. Babin, 2015 : Modelling the impingement of riverine DON removal by marine bacterioplankton on primary coil production in the Arctic Ocean. Biogeosciences, 12 ( 11 ), 3385-3402, doi:10.5194/bg-12-3385-2015 Abstract: The planktonic and biogeochemical dynamics of the Arctic shelves exhibit a strong variability in answer to Arctic warming. In this survey, we employ a biogeochemical model coupled to a pan-Arctic ocean-sea ice model ( MITgcm ) to elucidate the processes regulating the primary coil production ( PP ) of phytoplankton, bacterioplankton ( BP ), and their interactions. The model explicitly simulates and quantifies the contribution of functional dissolved organic nitrogen ( DON ) drained by the major circum-Arctic rivers to PP and BP in a scenario of melting ocean ice ( 1998-2011 ). Model simulations suggest that, on average between 1998 and 2011, the removal of available riverine dissolved organic nitrogen ( RDON ) by bacterioplankton is responsible for a ~ 26 % addition in the annual BP for the whole Arctic Ocean. With respect to total PP, the model simulates an addition of ~ 8 % on an annual basis and of ~ 18 % in summer. recycle ammonium is responsible for the PP increase. The recycle of RDON by bacterioplankton promotes higher BP and PP, but there is no significant worldly vogue in the BP : PP proportion within the ice-free shelves over the 1998-2011 period. This suggests no significant development in the balance between autotrophy and heterotrophy in the death decade, with a constant annual flux of RDON into the coastal ocean, although changes in RDON supply and farther reduction in sea-ice cover could potentially alter this delicate balance wheel. Keywords: ECCO Products Used: ECCO2URL: https://www.biogeosciences.net/12/3385/2015/ Other URLs:
Brix, Holger; Menemenlis, Dimitris; Hill, Christopher N.; Dutkiewicz, Stephanie; Jahn, Oliver; Wang, D; Bowman, Kevin W.; Zhang, Hong (2015). Using Green’s Functions to initialize and adjust a global, eddying ocean biogeochemistry general circulation model, Ocean Modelling (95), 1-14, 10.1016/j.ocemod.2015.07.008. Title: Using Green ’ s Functions to initialize and adjust a ball-shaped, eddying ocean biogeochemistry general circulation model Type: Journal article Publication: Ocean Modelling Author(s): Brix, Holger ; Menemenlis, Dimitris ; Hill, Christopher N. ; Dutkiewicz, Stephanie ; Jahn, Oliver ; Wang, D ; Bowman, Kevin W. ; Zhang, Hong Year: 2015 Formatted Citation: Brix, H., D. Menemenlis, C. N. Hill, S. Dutkiewicz, O. Jahn, D. Wang, K. W. Bowman, and H. Zhang, 2015 : Using Green ‘s Functions to initialize and adjust a global, eddying ocean biogeochemistry general circulation mannequin. Ocean Modelling, 95, 1-14, doi:10.1016/j.ocemod.2015.07.008 Abstract: The NASA Carbon Monitoring System ( CMS ) Flux Project aims to attribute changes in the atmospheric accumulation of carbon dioxide to spatially resolved fluxes by utilizing the full cortege of NASA data, models, and assimilation capabilities. For the oceanic separate of this undertaking, we introduce ECCO2-Darwin, a new ocean biogeochemistry general circulation model based on combining the follow preexistent components : ( one ) a full-depth, eddying, global-ocean shape of the Massachusetts Institute of Technology general circulation model ( MITgcm ), ( two ) an adjoint-method-based appraisal of ocean circulation from the Estimating the Circulation and Climate of the Ocean, Phase II ( ECCO2 ) project, ( three ) the MIT ecosystem mannequin “ Darwin ”, and ( four ) a marine carbon chemistry model. Air-sea gasoline exchange coefficients and initial conditions of dissolve inorganic carbon, alkalinity, and oxygen are adjusted using a Green ‘s Functions overture in order to optimize model air-sea CO2 fluxes. Data constraints include observations of carbon dioxide partial derivative pressure ( pCO2 ) for 2009-2010, ball-shaped air-sea CO2 flux estimates, and the seasonal worker hertz of the Takahashi et alabama. ( 2009 ) Atlas. The model sensitivity experiments ( or Green ‘s Functions ) include simulations that start from different initial conditions vitamin a well as experiments that perturb air-sea gasoline substitute parameters and the proportion of particulate inorganic to organic carbon paper. The Green ‘s Functions overture yields a linear combination of these sensitivity experiments that minimizes model-data differences. The resulting initial conditions and boast rally coefficients are then used to integrate the ECCO2-Darwin exemplar advancing. Despite the small act ( six ) of dominance parameters, the adjusted model is importantly closer to the datum constraints ( 37 % monetary value affair decrease, i.e., decrease in the model-data difference, relative to the baseline simulation ) and to independent observations ( for example, alkalinity ). The adjusted air-sea flatulence change parameter differs by alone 3 % from the baseline prize and has little shock ( − 0.1 % ) on the monetary value routine. The particulate inorganic to organic carbon ratio was increased more than threefold and reduced the price function by 22 % relative to the baseline integration, indicating a meaning influence of biology on air-sea gas exchange. The largest contribution to cost reduction ( 35 % ) comes from the adjustment of initial conditions. In accession to reducing biases relative to observations, the adjusted pretense exhibits smaller model float than the baseline. We estimate drift by integrating the model with perennial 2009 atmospheric forcing for seven years and find a volume-weighted drift decrease of, for case, 12.5 % for nitrate and 30 % for oxygen in the top 300 m. Although there remain several regions with large model-data discrepancies, for model, excessively strong carbon uptake in the Southern Ocean, the adjusted simulation is a first step towards a more accurate representation of the ocean carbon paper cycle at high spatial and temporal resolution. Keywords: Carbon Monitoring System, Data assimilation, Green ‘s Function, Ocean biogeochemical circulation model ECCO Products Used: ECCO2URL: http://www.sciencedirect.com/science/article/pii/S1463500315001171 Other URLs:
D’Addezio, Joseph M.; Subrahmanyam, Bulusu; Nyadjro, Ebenezer S.; Murty, V. S. N. (2015). Seasonal Variability of Salinity and Salt Transport in the Northern Indian Ocean, Journal of Physical Oceanography, 7 (45), 1947-1966, 10.1175/JPO-D-14-0210.1. Title: Seasonal Variability of Salinity and Salt Transport in the Northern Indian Ocean Type: Journal article Publication: Journal of Physical Oceanography Author(s): D’Addezio, Joseph M. ; Subrahmanyam, Bulusu ; Nyadjro, Ebenezer S. ; Murty, V. S. N. Year: 2015 Formatted Citation: D’Addezio, J. M., B. Subrahmanyam, E. S. Nyadjro, and V. S. N. Murty, 2015 : seasonal Variability of Salinity and Salt Transport in the Northern Indian Ocean. Journal of Physical Oceanography, 45 ( 7 ), 1947-1966, doi:10.1175/JPO-D-14-0210.1 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/10.1175/JPO-D-14-0210.1 Other URLs:
Wunsch, Carl (2015). Modern Observational Physical Oceanography: Understanding the Global Ocean. Title: Modern Observational Physical Oceanography : Understanding the Global Ocean Type: Book Publication: Author(s): Wunsch, Carl Year: 2015 Formatted Citation: Wunsch, C., 2015 : modern Observational Physical Oceanography : Understanding the Global Ocean. Princeton University Press, 512 pp. hypertext transfer protocol : //books.google.com/books ? id=8DFdBwAAQBAJ. Abstract: Keywords: ECCO Products Used: ECCO-V2 ; ECCO2URL: https://books.google.com/books?id=8DFdBwAAQBAJ Other URLs:
Yang, Tingting; Xu, Yongsheng (2015). Estimation of the time series of the meridional heat transport across 15°N in the Pacific Ocean from Argo and satellite data, Journal of Geophysical Research: Oceans, 4 (120), 3043-3060, 10.1002/2015JC010752. Title: Estimation of the meter series of the meridional heat transport across 15°N in the Pacific Ocean from Argo and satellite data Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Yang, Tingting ; Xu, Yongsheng Year: 2015 Formatted Citation: Yang, T., and Y. Xu, 2015 : estimate of the prison term series of the meridional heat transmit across 15°N in the Pacific Ocean from Argo and satellite data. J. Geophys. Res. Ocean., 120 ( 4 ), 3043-3060, doi:10.1002/2015JC010752 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2015JC010752 Other URLs:
Masich, Jessica; Chereskin, Teresa K.; Mazloff, Matthew R. (2015). Topographic form stress in the S outhern O cean S tate E stimate, Journal of Geophysical Research: Oceans, 12 (120), 7919-7933, 10.1002/2015JC011143. Title: Topographic form try in the S outhern O cean S tate E stimate Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Masich, Jessica ; Chereskin, Teresa K. ; Mazloff, Matthew R. Year: 2015 Formatted Citation: Masich, J., T. K. Chereskin, and M. R. Mazloff, 2015 : topographical human body stress in the S outhern O cean S tate E stimate. J. Geophys. Res. Ocean., 120 ( 12 ), 7919-7933, doi:10.1002/2015JC011143 Abstract: Keywords: ECCO Products Used: SOSEURL: http://doi.wiley.com/10.1002/2015JC011143 Other URLs: hypertext transfer protocol : //onlinelibrary.wiley.com/doi/abs/10.1002/2015JC011143
Wang, Shihong; Liu, Zhiliang; Pang, Chongguang (2015). Geographical distribution and anisotropy of the inverse kinetic energy cascade, and its role in the eddy equilibrium processes, Journal of Geophysical Research: Oceans, 7 (120), 4891-4906, 10.1002/2014JC010476. Title: Geographical distribution and anisotropy of the inverse energizing energy cascade, and its character in the eddy balance processes Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Wang, Shihong ; Liu, Zhiliang ; Pang, Chongguang Year: 2015 Formatted Citation: Wang, S., Z. Liu, and C. Pang, 2015 : geographic distribution and anisotropy of the inverse kinetic energy cascade, and its role in the eddy balance processes. J. Geophys. Res. Ocean., 120 ( 7 ), 4891-4906, doi:10.1002/2014JC010476 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2014JC010476 Other URLs:
Ostle, Clare; Johnson, Martin; Landschützer, Peter; Schuster, Ute; Hartman, Susan; Hull, Tom; Robinson, Carol (2015). Net community production in the North Atlantic Ocean derived from Volunteer Observing Ship data, Global Biogeochemical Cycles, 1 (29), 80-95, 10.1002/2014GB004868. Title: Net residential district production in the North Atlantic Ocean derived from Volunteer Observing Ship data Type: Journal article Publication: Global Biogeochemical Cycles

Author(s): Ostle, Clare ; Johnson, Martin ; Landschützer, Peter ; Schuster, Ute ; Hartman, Susan ; Hull, Tom ; Robinson, Carol Year: 2015 Formatted Citation: Ostle, C., M. Johnson, P. Landschützer, U. Schuster, S. Hartman, T. Hull, and C. Robinson, 2015 : net income residential district production in the North Atlantic Ocean derived from Volunteer Observing Ship datum. Global Biogeochemical Cycles, 29 ( 1 ), 80-95, doi:10.1002/2014GB004868 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2014GB004868 Other URLs:
Volkov, Denis L.; Kubryakov, Arseny A.; Lumpkin, Rick (2015). Formation and variability of the Lofoten basin vortex in a high-resolution ocean model, Deep Sea Research Part I: Oceanographic Research Papers (105), 142-157, 10.1016/j.dsr.2015.09.001. Title: Formation and variability of the Lofoten basin whirl in a high-resolution ocean exemplary Type: Journal article Publication: Deep Sea Research Part I : Oceanographic Research Papers Author(s): Volkov, Denis L. ; Kubryakov, Arseny A. ; Lumpkin, Rick Year: 2015 Formatted Citation: Volkov, D. L., A. A. Kubryakov, and R. Lumpkin, 2015 : formation and variability of the Lofoten basin whirlpool in a high-resolution ocean model. Deep Sea Research Part I : Oceanographic Research Papers, 105, 142-157, doi:10.1016/j.dsr.2015.09.001 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://linkinghub.elsevier.com/retrieve/pii/S0967063715001508 Other URLs:
Lüpkes, Christof; Gryanik, Vladimir M. (2015). Parameterization of drag coefficients over polar sea ice for climate models, Mercator Ocean Quarterly Newsletter, 51, 29-34. Title: Parameterization of scuff coefficients over diametric sea ice for climate models Type: Magazine article Publication: Mercator Ocean Quarterly newsletter Author(s): Lüpkes, Christof ; Gryanik, Vladimir M. Year: 2015 Formatted Citation: Lüpkes, C., and V. M. Gryanik, 2015 : Parameterization of puff coefficients over arctic sea frosting for climate models. Mercator Ocean Quarterly Newsletter ( 51 ), 29-34 pp. Abstract: A parameterization of puff coefficients has been developed in recent years that accounts for the affect of edges at ice rink floes, leads, and melt ponds on momentum ecstasy. Melt ponds are a common feature in the inner Arctic during summer while drifting frost floes and their edges influence the surface crudeness particularly in the bare sea methamphetamine zones during all seasons. Governing parameters in the parameterization that can be easily applied to climate models are the sea ice concentration and expression proportion h/D where henry is the ice freeboard and D is the characteristic length of floes and ponds/leads. When these parameters are not available from a sea ice model, the view ratios can besides be parameterized as a function of the sea ice concentration so that the fresh schemes can besides be used in stand-alone atmospheric models using observe ocean ice concentration. The parameterization is evaluated for idealized meteorologic impel and prescribed sea ice rink and melt pond concentration in the siberian Arctic and in parts of the Central Arctic. The compulsory sea internal-combustion engine data are available from outback sensing. The distributions of drag coefficients obtained from traditional parameterizations and from the new one appearance boastfully differences in this test scenario specially in the region south of 80°N. Keywords: ECCO Products Used: ECCO2URL: http://epic.awi.de/37699/ Other URLs: hypertext transfer protocol : //hdl.handle.net/10013/epic.45315.d001
Piecuch, C. G.; Ponte, R. M. (2015). A wind-driven nonseasonal barotropic fluctuation of the Canadian inland seas, Ocean Science, 1 (11), 175-185, 10.5194/os-11-175-2015. Title: A wind-driven nonseasonal barotropic fluctuation of the Canadian inland seas Type: Journal article Publication: Ocean Science Author(s): Piecuch, C. G. ; Ponte, R. M. Year: 2015 Formatted Citation: Piecuch, C. G., and R. M. Ponte, 2015 : A wind-driven nonseasonal barotropic variation of the Canadian inland seas. Ocean Science, 11 ( 1 ), 175-185, doi:10.5194/os-11-175-2015 Abstract: A wind-driven, spatially coherent mode of nonseasonal, depth-independent variability in the canadian inland seas ( i, the collective of Hudson Bay, James Bay, and Foxe Basin ) is identified based on Gravity Recovery and Climate Experiment ( GRACE ) retrievals, a tide-gauge record, and a barotropic exemplar over 2003-2013. This dominant mood of nonseasonal variability is correlated with the North Atlantic Oscillation and is associated with net flows into and out of the Canadian inland seas ; the anomalous inflows and outflows, which are reflected in beggarly sea horizontal surface and buttocks press changes, are driven by wreathe stress anomalies over Hudson Strait, probably related to wind setup, american samoa well as over the northern North Atlantic Ocean, possibly mediated by respective wave mechanisms. The mode is besides associated with mass redistribution within the canadian inland seas, reflecting linear reply to local wind stress variations under the combine influences of rotation, graveness, and variable bed topography. Results exemplify the utility of GRACE for studying regional ocean circulation and climate. Keywords: ECCO Products Used: ECCO2URL: https://www.ocean-sci.net/11/175/2015/ Other URLs:
Göttl, F.; Schmidt, M.; Seitz, F.; Bloßfeld, M. (2015). Separation of atmospheric, oceanic and hydrological polar motion excitation mechanisms based on a combination of geometric and gravimetric space observations, Journal of Geodesy, 4 (89), 377-390, 10.1007/s00190-014-0782-0. Title: Separation of atmospheric, oceanic and hydrological polar gesticulate excitation mechanisms based on a combination of geometric and hydrometric quad observations Type: Journal article Publication: Journal of Geodesy Author(s): Göttl, F. ; Schmidt, M. ; Seitz, F. ; Bloßfeld, M. Year: 2015 Formatted Citation: Göttl, F., M. Schmidt, F. Seitz, and M. Bloßfeld, 2015 : separation of atmospheric, oceanic and hydrological polar gesture excitation mechanisms based on a combination of geometric and hydrometric space observations. Journal of Geodesy, 89 ( 4 ), 377-390, doi:10.1007/s00190-014-0782-0 Abstract: The goal of our discipline is to determine accurate prison term series of geophysical Earth rotation excitations to learn more about ball-shaped dynamic processes in the Earth system. For this purpose, we developed an allowance model which allows to combine accurate observations from space geodetic observation systems, such as Satellite Laser Ranging ( SLR ), Global Navigation Satellite Systems, very retentive Baseline Interferometry, Doppler Orbit determination and Radiopositioning Integrated on Satellite, satellite altimetry and satellite hydrometry in order to separate geophysical excitement mechanisms of Earth rotation. Three pivotal gesture time series are applied to derive the pivotal motion excitement functions ( built-in effect ). Furthermore we use five clock variable star gravity field solutions from Gravity Recovery and Climate Experiment to determine not only the integral batch effect but besides the oceanic and hydrological mass effects by applying desirable filter techniques and a land-ocean mask. For comparison the integral mass effect is besides derived from degree 2 electric potential coefficients that are estimated from SLR observations. The oceanic mass effect is besides determined from ocean level anomalies observed by satellite altimetry by reducing the steric ocean level anomalies derived from temperature and salt fields of the oceans. Due to the combination of all geodetic estimated excitations the weaknesses of the individual march strategies can be reduced and the technique-specific strengths can be accounted for. The formal errors of the adjusted geodetic solutions are smaller than the RMS differences of the geophysical model solutions. The improved excitation time series can be used to improve the geophysical modeling. Keywords: Combination of geodetic space observations, Polar motion excitation functions, Separation of individual mass and motion effects ECCO Products Used: ECCO-KFS URL: Other URLs:
Forget, G; Ferreira, D; Liang, X (2015). On the observability of turbulent transport rates by Argo: supporting evidence from an inversion experiment, Ocean Sci., 5 (11), 839-853, 10.5194/os-11-839-2015. Title: On the observability of churning transport rates by Argo : supporting evidence from an inversion experiment Type: Journal article Publication: Ocean Sci. Author(s): Forget, G ; Ferreira, D ; Liang, X Year: 2015 Formatted Citation: Forget, G., D. Ferreira, and X. Liang, 2015 : On the observability of disruptive transport rates by Argo : supporting evidence from an inversion experiment. Ocean Sci., 11 ( 5 ), 839-853, doi:10.5194/os-11-839-2015 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: http://www.ocean-sci.net/11/839/2015/ Other URLs:
Wang, Xiaochun; Zhao, Liqing; Li, Zhijin; Menemenlis, Dimitris (2015). Regional ocean forecasting systems and their applications: Design considerations of such a system for the South China Sea, Aquatic Ecosystem Health & Management, 4 (18), 443-453, 10.1080/14634988.2015.1112123. Title: Regional ocean forecasting systems and their applications : Design considerations of such a arrangement for the South China Sea Type: Journal article Publication: Aquatic Ecosystem Health & Management Author(s): Wang, Xiaochun ; Zhao, Liqing ; Li, Zhijin ; Menemenlis, Dimitris Year: 2015 Formatted Citation: Wang, X., L. Zhao, Z. Li, and D. Menemenlis, 2015 : regional ocean forecasting systems and their applications : Design considerations of such a system for the South China Sea. Aquatic Ecosystem Health & Management, 18 ( 4 ), 443-453, doi:10.1080/14634988.2015.1112123 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://www.tandfonline.com/doi/full/10.1080/14634988.2015.1112123 Other URLs:
Vinogradova, Nadya T; Ponte, Rui M; Quinn, Katherine J; Tamisiea, Mark E; Campin, Jean-Michel; Davis, James L (2015). Dynamic Adjustment of the Ocean Circulation to Self-Attraction and Loading Effects, Journal of Physical Oceanography, 3 (45), 678-689, 10.1175/JPO-D-14-0150.1. Title: Dynamic Adjustment of the Ocean Circulation to Self-Attraction and Loading Effects Type: Journal article Publication: Journal of Physical Oceanography Author(s): Vinogradova, Nadya T ; Ponte, Rui M ; Quinn, Katherine J ; Tamisiea, Mark E ; Campin, Jean-Michel ; Davis, James L Year: 2015 Formatted Citation: Vinogradova, N. T., R. M. Ponte, K. J. Quinn, M. E. Tamisiea, J. Campin, and J. L. Davis, 2015 : dynamic adjustment of the Ocean Circulation to Self-Attraction and Loading Effects. Journal of Physical Oceanography, 45 ( 3 ), 678-689, doi:10.1175/JPO-D-14-0150.1 Abstract: The oceanic response to surface loading, such as that related to atmospheric pressure, fresh water substitute, and changes in the gravity plain, is necessity to our understanding of ocean flush unevenness. In particular, alleged self-attraction and load ( SAL ) effects caused by the redistribution of bulk within the land-atmosphere-ocean system can have a measurable affect on sea floor. In this study, the nature of SAL-induced unevenness in sea level is examined in terms of its chemical equilibrium ( inactive ) and nonequilibrium ( dynamic ) components, using a general circulation exemplary that implicitly includes the physics of SAL. The extra SAL impel is derived by decomposing ocean multitude anomalies into ball-shaped harmonics and then applying Love numbers to infer associate crustal displacements and gravitational shifts. This implementation of SAL physics incurs only a relatively small computational cost. Effects of SAL on ocean level sum to about 10 % of the applied surface loading on average but depend strongly on placement. The active part exhibits large-scale basinwide patterns, with considerable contributions from subweekly time scales. Departures from equilibrium decrease toward longer time scales but are not wholly negligible in many places. Ocean modeling studies should benefit from using a dynamic execution of SAL as used hera. Keywords: ECCO Products Used: URL: http://dx.doi.org/10.1175/JPO-D-14-0150.1 Other URLs:
Fukumori, I (2015). Combining models and data in large-scale oceanography: Examples from the Consortium for Estimating the Circulation and Climate of the Ocean (ECCO), Advanced Data Assimilation for Geosciences: Lecture Notes of the Les Houches School of Physics: Special Issue, June 2012, 608pp. Title: Combining models and data in large-scale oceanography : Examples from the consortium for Estimating the Circulation and Climate of the Ocean ( ECCO ) Type: Journal article Publication: Advanced Data Assimilation for Geosciences : lecture Notes of the Les Houches School of Physics : special Issue, June 2012 Author(s): Fukumori, I Year: 2015 Formatted Citation: Fukumori, I., 2015 : combining models and data in large-scale oceanography : Examples from the consortium for Estimating the Circulation and Climate of the Ocean ( ECCO ). Advanced Data Assimilation for Geosciences : lecture Notes of the Les Houches School of Physics : special Issue, June 2012, 608pp Abstract: Keywords: ECCO Products Used: URL: Other URLs:
Villar, E.; Farrant, G. K.; Follows, Michael J.; Garczarek, L.; Speich, S.; Audic, S.; Bittner, L.; Blanke, B.; Brum, J. R.; Brunet, C.; Casotti, R.; Chase, A.; Dolan, J. R.; D’Ortenzio, F.; Gattuso, J.-P.; Grima, N.; Guidi, L.; Hill, C. N.; Jahn, O.; Jamet, J.-L.; Le Goff, H.; Lepoivre, C.; Malviya, S.; Pelletier, E.; Romagnan, J.-B.; Roux, S.; Santini, S.; Scalco, E.; Schwenck, S. M.; Tanaka, A.; Testor, P.; Vannier, T.; Vincent, F.; Zingone, A.; Dimier, C.; Picheral, M.; Searson, S.; Kandels-Lewis, S.; Acinas, S. G.; Bork, P.; Boss, E.; de Vargas, C.; Gorsky, G.; Ogata, H.; Pesant, S.; Sullivan, M. B.; Sunagawa, S.; Wincker, P.; Karsenti, E.; Bowler, C.; Not, F.; Hingamp, P.; Iudicone, D. (2015). Environmental characteristics of Agulhas rings affect interocean plankton transport, Science, 6237 (348), 1261447-1261447, 10.1126/science.1261447. Title: Environmental characteristics of Agulhas rings affect interocean plankton transportation Type: Journal article Publication: skill Author(s): Villar, E. ; Farrant, G. K. ; Follows, Michael J. ; Garczarek, L. ; Speich, S. ; Audic, S. ; Bittner, L. ; Blanke, B. ; Brum, J. R. ; Brunet, C. ; Casotti, R. ; Chase, A. ; Dolan, J. R. ; D’Ortenzio, F. ; Gattuso, J.-P. ; Grima, N. ; Guidi, L. ; Hill, C. N. ; Jahn, O. ; Jamet, J.-L. ; Le Goff, H. ; Lepoivre, C. ; Malviya, S. ; Pelletier, E. ; Romagnan, J.-B. ; Roux, S. ; Santini, S. ; Scalco, E. ; Schwenck, S. M. ; Tanaka, A. ; Testor, P. ; Vannier, T. ; Vincent, F. ; Zingone, A. ; Dimier, C. ; Picheral, M. ; Searson, S. ; Kandels-Lewis, S. ; Acinas, S. G. ; Bork, P. ; Boss, E. ; de Vargas, C. ; Gorsky, G. ; Ogata, H. ; Pesant, S. ; Sullivan, M. B. ; Sunagawa, S. ; Wincker, P. ; Karsenti, E. ; Bowler, C. ; not, F. ; Hingamp, P. ; Iudicone, D. Year: 2015 Formatted Citation: Villar, E. and Coauthors, 2015 : environmental characteristics of Agulhas rings affect interocean plankton transport. Science, 348 ( 6237 ), 1261447-1261447, doi:10.1126/science.1261447 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://www.sciencemag.org/cgi/doi/10.1126/science.1261447 Other URLs:
Halpern, David; Menemenlis, Dimitris; Wang, Xiaochun (2015). Impact of Data Assimilation on ECCO2 Equatorial Undercurrent and North Equatorial Countercurrent in the Pacific Ocean, Journal of Atmospheric and Oceanic Technology, 1 (32), 131-143, 10.1175/JTECH-D-14-00025.1. Title: Impact of Data Assimilation on ECCO2 Equatorial Undercurrent and North Equatorial Countercurrent in the Pacific Ocean Type: Journal article Publication: Journal of Atmospheric and Oceanic Technology Author(s): Halpern, David ; Menemenlis, Dimitris ; Wang, Xiaochun Year: 2015 Formatted Citation: Halpern, D., D. Menemenlis, and X. Wang, 2015 : impact of Data Assimilation on ECCO2 Equatorial Undercurrent and North Equatorial Countercurrent in the Pacific Ocean. Journal of Atmospheric and Oceanic Technology, 32 ( 1 ), 131-143, doi:10.1175/JTECH-D-14-00025.1 Abstract: The impact of data assimilation on the transports of eastward-flowing Equatorial Undercurrent ( EUC ) and North Equatorial Countercurrent ( NECC ) in the Pacific Ocean from 145°E to 95°W during 2004-05 and 2009-11 was assessed. Two Estimating the Circulation and Climate of the Ocean, Phase II ( ECCO2 ), solutions were analyzed : one with data acculturation and one without. Assimilated data included satellite observations of ocean surface temperature and ocean surface topography, in which the sample patterns were approximately uniform over the 5 years, and in situ measurements of subsurface salt and temperature profiles, in which the sample distribution patterns varied well in quad and clock throughout the 5 years. speed measurements were not assimilated. The shock of data assimilation was considered significant when the dispute between the transports computed with and without data assimilation was greater than 5.5 × 106 m3 s−1 ( or 5.5 Sv ; 1 Sv ≡ 106 m3 s−1 ) for the EUC and greater than 5.0 Sv for the NECC. In accession, the remainder of annual-mean transports computed from 3-day-averaged data was statistically significant at the 95 % level. The impact of data assimilation ranged from no impact to identical significant impact when datum assimilation increased the EUC transport and decreased the NECC transport. The study ‘s EUC results had some symmetry with other studies and no elementary agreement or disagreement pattern emerged among all studies of the impact of data assimilation. No comparable sketch of the affect of data assimilation on the NECC has been made. Keywords: Atmosphere-ocean one, Ocean circulation, Pacific Ocean ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/abs/10.1175/JTECH-D-14-00025.1 Other URLs:
Duarte, Pedro; Assmy, Philipp; Hop, Haakon; Spreen, Gunnar; Gerland, Sebastian; Hudson, Stephen R. (2015). The importance of vertical resolution in sea ice algae production models, Journal of Marine Systems (145), 69-90, 10.1016/j.jmarsys.2014.12.004. Title: The importance of vertical resoluteness in sea internal-combustion engine alga production models Type: Journal article Publication: Journal of Marine Systems Author(s): Duarte, Pedro ; Assmy, Philipp ; Hop, Haakon ; Spreen, Gunnar ; Gerland, Sebastian ; Hudson, Stephen R. Year: 2015 Formatted Citation: Duarte, P., P. Assmy, H. Hop, G. Spreen, S. Gerland, and S. R. Hudson, 2015 : The importance of vertical resolution in sea ice alga production models. Journal of Marine Systems, 145, 69-90, doi:10.1016/j.jmarsys.2014.12.004 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://linkinghub.elsevier.com/retrieve/pii/S0924796315000032 Other URLs:
Polkova, Iuliia; Köhl, Armin; Stammer, Detlef (2015). Predictive skill for regional interannual steric sea level and mechanisms for predictability, Journal of Climate, 18 (28), 7407-7419, 10.1175/JCLI-D-14-00811.1. Title: Predictive skill for regional interannual steric sea level and mechanisms for predictability Type: Journal article Publication: Journal of Climate Author(s): Polkova, Iuliia ; Köhl, Armin ; Stammer, Detlef Year: 2015 Formatted Citation: Polkova, I., A. Köhl, and D. Stammer, 2015 : Predictive skill for regional interannual steric sea degree and mechanisms for predictability. J. Clim., 28 ( 18 ), 7407-7419, doi:10.1175/JCLI-D-14-00811.1 Abstract: Based on decadal hindcasts initialized every five years over the time period 1960-2000, the predictive skill of annual-mean regional steric ocean level and associated mechanisms are investigated. Predictive skill for steric ocean level is found over large areas of the World Ocean, notably over the subtropical Atlantic and Pacific Oceans, along the way of the North Atlantic Current, and over the indian and southern Oceans. Mechanisms for the predictabilityofthethermostericandhalostericcontributionstothestericsignalare studied byseparatingthese components into signals originating from processes within and beneath the desegregate layer. Contributions originating from below the interracial layer are further decomposed into density-related ( isopycnal gesture term ) and density-compensated ( spice term ) changes. Inregions ofthe subtropical Pacific andAtlanticOceans, predictive skill results from the interannual variability associated with the contribution from isopycnal gesture to thermostericsealevel.Skillrelatedtothermostericmixedlayerprocessesisfoundtobeimportantinthesubtropical Atlantic, while the spice contribution shows skill over the subpolar North Atlantic. In the subtropics, the high predictive skill can be rationalized in terms of westward-propagating baroclinic Rossby waves for a head time of 2-5yr, as demonstrated using an initialize Rossby brandish model. Because of the low Rossby wave accelerate in high latitudes, this summons is not dissociable from the perseverance there. Keywords: Coupled models, Forecast verification/skill, Hindcasts, Interannual unevenness, Rossby waves, Sea level ECCO Products Used: GECCO URL: Other URLs:
Rudnick, Daniel L.; Gopalakrishnan, Ganesh; Cornuelle, Bruce D. (2015). Cyclonic Eddies in the Gulf of Mexico: Observations by Underwater Gliders and Simulations by Numerical Model, Journal of Physical Oceanography, 1 (45), 313-326, 10.1175/JPO-D-14-0138.1. Title: Cyclonic Eddies in the Gulf of Mexico : Observations by Underwater Gliders and Simulations by Numerical Model Type: Journal article Publication: Journal of Physical Oceanography Author(s): Rudnick, Daniel L. ; Gopalakrishnan, Ganesh ; Cornuelle, Bruce D. Year: 2015 Formatted Citation: Rudnick, D. L., G. Gopalakrishnan, and B. D. Cornuelle, 2015 : cyclonic Eddies in the Gulf of Mexico : Observations by Underwater Gliders and Simulations by Numerical Model. Journal of Physical Oceanography, 45 ( 1 ), 313-326, doi:10.1175/JPO-D-14-0138.1 Abstract: Keywords: ECCO Products Used: SOSEURL: http://journals.ametsoc.org/doi/10.1175/JPO-D-14-0138.1 Other URLs:
Forget, G; Fukumori, I; Heimbach, P; Lee, T; Menemenlis, Dimitris; Ponte, R M (2015). Estimating the Circulation and Climate of the Ocean (ECCO): Advancing CLIVAR Science, CLIVAR Exchanges, 2 (19), 41-45. Title: Estimating the Circulation and Climate of the Ocean ( ECCO ) : Advancing CLIVAR science Type: Magazine article Publication: CLIVAR Exchanges Author(s): Forget, G ; Fukumori, I ; Heimbach, P ; Lee, T ; Menemenlis, Dimitris ; Ponte, R M Year: 2015 Formatted Citation: Forget, G., I. Fukumori, P. Heimbach, T. Lee, D. Menemenlis, and R. M. Ponte, 2015 : Estimating the Circulation and Climate of the Ocean ( ECCO ) : Advancing CLIVAR Science. CLIVAR Exchanges, 19 ( 2 ), 41-45 pp. Abstract: Keywords: ECCO Products Used: ECCO-V4 ; ECCO2 URL: Other URLs:
Yan, C X; Zhu, J; Xie, J P (2015). An ocean data assimilation system in the Indian Ocean and west Pacific Ocean, Advances in Atmospheric Sciences, 11 (32), 1460-1472, 10.1007/s00376-015-4121-z. Title: An ocean data assimilation arrangement in the amerind Ocean and west Pacific Ocean Type: Journal article Publication: Advances in Atmospheric Sciences Author(s): Yan, C X ; Zhu, J ; Xie, J P Year: 2015 Formatted Citation: Yan, C. X., J. Zhu, and J. P. Xie, 2015 : An ocean data assimilation system in the indian Ocean and west Pacific Ocean. Advances in Atmospheric Sciences, 32 ( 11 ), 1460-1472, doi:10.1007/s00376-015-4121-z Abstract: The development and application of a regional ocean data assimilation system are among the aims of the Global Ocean Data Assimilation Experiment. The ocean data acculturation organization in the regions including the indian and West Pacific oceans is an attempt motivated by this goal. In this cogitation, we describe the system in detail. furthermore, the reanalysis in the joint area of Asia, the amerind Ocean, and the western Pacific Ocean ( future AIPOcean ) constructed using multi-year model integration with data assimilation is used to test the performance of this system. The ocean mannequin is an eddy-resolving, hybrid organize ocean mannequin. respective types of observations including in-situ temperature and brininess profiles ( mechanical bathythermograph, expendable bathythermograph, Array for Real-time Geostrophic Oceanography, Tropical Atmosphere Ocean Array, conductivity-temperature-depth, station data ), remotely-sensed ocean surface temperature, and altimetry ocean level anomalies, are assimilated into the reanalysis via the ensemble optimum interjection method acting. An ensemble of model states sampled from a long-run integration is allowed to change with season, rather than remaining stationary. The estimated background erroneousness covariance matrix may reasonably reflect the seasonality and anisotropy. We evaluate the performance of AIPOcean during the period 1993-2006 by comparisons with freelancer observations, and some reanalysis products. We show that AIPOcean reduces the errors of subsurface temperature and salt, and reproduces mesoscale eddies. In contrast to ECCO and SODA products, AIPOcean captures the interannual unevenness and linear vogue of sea level anomalies very well. AIPOcean besides shows a estimable consistency with tide gauges. Keywords: air-sea interaction, background error covariance, chinaware, climate organization, doppler, eddy, ensemble optimum interpolation, indonesian throughflow, mannequin, ocean data assimilation, separate two, prediction, radar, reanalysis ECCO Products Used: ECCO-KFS URL: Other URLs:
Hill, Christopher N. (2015). Abrupt Climate Change and the Atlantic Meridional Overturning Circulation: sensitivity and non-linear response to Arctic/sub-Arctic freshwater pulses. Title: Abrupt Climate Change and the Atlantic Meridional Overturning circulation : sensitivity and non-linear reply to Arctic/sub-Arctic fresh water pulses Type: Report Publication: Author(s): Hill, Christopher N. Year: 2015 Formatted Citation: Hill, C. N., 2015 : abrupt Climate Change and the Atlantic Meridional Overturning circulation : sensitivity and non-linear reply to Arctic/sub-Arctic fresh water pulses., Cambridge, MA, 5 pp. hypertext transfer protocol : //www.osti.gov/biblio/1184378. Abstract: This project investigated possible mechanisms by which melt-water pulses can induce abrupt switch in the Atlantic Meridional Overturning Circulation ( AMOC ) magnitude. AMOC order of magnitude is an significant component in deliver day climate. previous studies have hypothesized abrupt reduction in AMOC magnitude in response to influxes of glacial thaw urine into the North Atlantic. celebrated fresh-water influxes are associated with the terminus of the last methamphetamine historic period. During this time period bombastic volumes of thaw water accumulated behind retreating internal-combustion engine sheets and subsequently drained quickly when the methamphetamine weakened sufficiently. rapid drain of glacial lakes into the North Atlantic is a possible origin of a number of paleo-record abrupt climate shifts. These include the Younger-Dryas cool event and the 8,200 class cooling event. The studies undertaken focused on whether the mechanistic sequence by which frigid melt-water impacts AMOC, which then impacts Northern Hemisphere global mean surface temperature, is dynamically plausible. The bring has implications for better understanding by climate stability. The solve besides has relevance for today ‘s environment, in which high-latitude ice melting in Greenland appears to be driving fresh water outflows at an accelerating pace. Keywords: ECCO Products Used: ECCO2URL: https://www.osti.gov/biblio/1184378 Other URLs:
Piecuch, Christopher G; Heimbach, Patrick; Ponte, Rui M; Forget, Gaël (2015). Sensitivity of contemporary sea level trends in a global ocean state estimate to effects of geothermal fluxes, Ocean Modelling (96, Part 2), 214-220, 10.1016/j.ocemod.2015.10.008. Title: Sensitivity of contemporaneous ocean floor trends in a global ocean state estimate to effects of geothermal fluxes Type: Journal article Publication: Ocean Modelling Author(s): Piecuch, Christopher G ; Heimbach, Patrick ; Ponte, Rui M ; Forget, Gaël Year: 2015 Formatted Citation: Piecuch, C. G., P. Heimbach, R. M. Ponte, and G. Forget, 2015 : sensitivity of contemporary sea level trends in a global ocean state estimate to effects of geothermal fluxes. Ocean Modelling, 96, Part 2, 214-220, doi:10.1016/j.ocemod.2015.10.008 Abstract: Geothermal fluxes constitute a goodly divide of the contemporary Earth final radiative asymmetry and corresponding ocean estrus consumption. Model simulations of contemporary ocean level that impose a geothermal liquefy boundary condition are becoming increasingly common. To quantify the shock of geothermal fluxes on model estimates of contemporary ( 1993-2010 ) ocean floor changes, two ocean circulation model experiments are compared. The two simulations are based on a global ocean state estimate, produced by the Estimating the Circulation and Climate of the Ocean ( ECCO ) consortium, and differ lone with respect to whether geothermal storm is applied as a limit condition. Geothermal forcing raises the global-mean sea level tendency by 0.11 mm year − 1 in the perturbation experiment by suppressing a cooling vogue present in the service line solution below 2000 m. The imposed force besides affects regional ocean level trends. The southerly Ocean is particularly sensitive. In this region, anomalous hotness redistribution due to geothermal fluxes results in steric height trends of up to ± 1 millimeter year − 1 in the perturbation experiment relative to the baseline pretense. psychoanalysis of a passive tracer experiment suggests that the geothermal input itself is transported by horizontal dissemination, resulting in more thermal expansion over deeper ocean basins. thermal expansion in the disturbance model gives rise to bottom pressure increase over shallower regions and decrease over deeper areas relative to the baseline guide, consistent with mass redistribution expected for deep ocean warming. These results elucidate the influence of geothermal fluxes on ocean horizontal surface resurrect and global estrus budgets in model simulations of contemporary ocean circulation and climate. Keywords: Geothermal fluxes, Ocean general circulation model, Ocean state of matter estimate, Passive tracer, Sea degree originate, Solid Earth surface inflame flow ECCO Products Used: ECCO-V4URL: http://www.sciencedirect.com/science/article/pii/S1463500315002115 Other URLs:
Chen, Zhaohui; Wu, Lixin (2015). Seasonal Variation of the Pacific South Equatorial Current Bifurcation, Journal of Physical Oceanography, 6 (45), 1757-1770, 10.1175/JPO-D-14-0085.1. Title: Seasonal Variation of the Pacific South Equatorial Current Bifurcation Type: Journal article Publication: Journal of Physical Oceanography Author(s): Chen, Zhaohui ; Wu, Lixin Year: 2015 Formatted Citation: Chen, Z., and L. Wu, 2015 : seasonal worker Variation of the Pacific South Equatorial Current Bifurcation. Journal of Physical Oceanography, 45 ( 6 ), 1757-1770, doi:10.1175/JPO-D-14-0085.1 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/10.1175/JPO-D-14-0085.1 Other URLs:
Meredith, M P; Mazloff, M; Sallée, J.-B.; Newman, L; Wåhlin, A; Williams, M J M; Garabato, A C Naveira; Swart, S; Monteiro, P; Mata, Mauricio M.; Schmidtko, S. (2015). Southern Ocean in State of the Climate in 2014, Bull. Amer. Meteor. Soc. (96), S157-S160. Title: Southern Ocean in State of the Climate in 2014 Type: Journal article Publication: Bull. Amer. Meteor. Soc. Author(s): Meredith, M P ; Mazloff, M ; Sallée, J.-B. ; Newman, L ; Wåhlin, A ; Williams, M J M ; Garabato, A C Naveira ; Swart, S ; Monteiro, P ; Mata, Mauricio M. ; Schmidtko, S. Year: 2015 Formatted Citation: Meredith, M. P. and Coauthors, 2015 : southerly Ocean in State of the Climate in 2014. Bull. Amer. Meteor. Soc., 96, S157-S160 Abstract: Keywords: ECCO Products Used: SOSE URL: Other URLs:
Fujii, Yosuke; Cummings, James; Xue, Yan; Schiller, Andreas; Lee, Tong; Balmaseda, Magdalena Alonso; Rémy, Elisabeth; Masuda, Shuhei; Brassington, Gary; Alves, Oscar; Cornuelle, Bruce; Martin, Matthew; Oke, Peter; Smith, Gregory; Yang, Xiaosong (2015). Evaluation of the Tropical Pacific Observing System from the ocean data assimilation perspective, Quarterly Journal of the Royal Meteorological Society, 692 (141), 2481-2496, 10.1002/qj.2579. Title: evaluation of the Tropical Pacific Observing System from the ocean data assimilation position Type: Journal article Publication: Quarterly Journal of the Royal Meteorological Society Author(s): Fujii, Yosuke ; Cummings, James ; Xue, Yan ; Schiller, Andreas ; Lee, Tong ; Balmaseda, Magdalena Alonso ; Rémy, Elisabeth ; Masuda, Shuhei ; Brassington, Gary ; Alves, Oscar ; Cornuelle, Bruce ; Martin, Matthew ; Oke, Peter ; Smith, Gregory ; Yang, Xiaosong Year: 2015 Formatted Citation: Fujii, Y. and Coauthors, 2015 : evaluation of the Tropical Pacific Observing System from the ocean data assimilation perspective. quarterly Journal of the Royal Meteorological Society, 141 ( 692 ), 2481-2496, doi:10.1002/qj.2579 Abstract: Keywords: ECCO Products Used: SOSEURL: http://doi.wiley.com/10.1002/qj.2579 Other URLs:
Dushaw, Brian D. (2015). The Predictability of Large-Scale, Short-Period Ocean Variability in the Philippine Sea and the Influence of Such Variability on Long-Range Acoustic Propagation. Title: The Predictability of Large-Scale, Short-Period Ocean Variability in the Philippine Sea and the Influence of such Variability on Long-Range Acoustic Propagation Type: Report Publication: Author(s): Dushaw, Brian D. Year: 2015 Formatted Citation: Dushaw, B. D., 2015 : The Predictability of Large-Scale, Short-Period Ocean Variability in the Philippine Sea and the Influence of such Variability on Long-Range Acoustic Propagation., Seattle, WA, 10 pp. hypertext transfer protocol : //apps.dtic.mil/dtic/tr/fulltext/u2/a622959.pdf. Abstract: Keywords: ECCO Products Used: ECCO2URL: https://apps.dtic.mil/dtic/tr/fulltext/u2/a622959.pdf Other URLs:
Liang, Xinfeng; Wunsch, Carl; Heimbach, Patrick; Forget, Gael (2015). Vertical Redistribution of Oceanic Heat Content, Journal of Climate, 9 (28), 3821-3833, 10.1175/JCLI-D-14-00550.1. Title: Vertical Redistribution of Oceanic Heat Content Type: Journal article Publication: Journal of Climate Author(s): Liang, Xinfeng ; Wunsch, Carl ; Heimbach, Patrick ; Forget, Gael Year: 2015 Formatted Citation: Liang, X., C. Wunsch, P. Heimbach, and G. Forget, 2015 : erect redistribution of Oceanic Heat Content. J. Clim., 28 ( 9 ), 3821-3833, doi:10.1175/JCLI-D-14-00550.1 Abstract: Estimated values of late oceanic heating system consumption are on the order of a few tenths of a W m−2, and are a very small remainder of air-sea exchanges, with annual average regional magnitudes of hundreds of W m−2. Using a dynamically consistent state of matter estimate, the redistribution of heat within the ocean is calculated over a 20-yr period. The 20-yr intend vertical heat flux shows hard variations in both the lateral and erect directions, reproducible with the ocean being a dynamically active and spatially building complex hotness exchanger. Between mixing and advection, the two processes determining the erect heat transportation in the abstruse ocean, advection plays a more authoritative function in setting the spatial patterns of erect heat substitution and its temporal variations. The global integral of vertical heat flux density shows an up heat tape drive in the deep ocean, suggesting a cooling vogue in the deep ocean. These results support an inference that the near-surface thermal properties of the ocean are a consequence, at least in part, of internal redistributions of heat, some of which must reflect body of water that has undergo long trajectories since last exposure to the atmosphere. The modest residual heating system exchange with the atmosphere today is improbable to represent the interaction with an ocean that was in thermal equilibrium at the depart of global warm. An doctrine of analogy is drawn with carbon-14 “ reservoir ages, ” which range from over hundreds to a thousand years. Keywords: Climate change, Data assimilation, Ocean dynamics, Oceanic unevenness, Transport ECCO Products Used: URL: http://journals.ametsoc.org/doi/abs/10.1175/JCLI-D-14-00550.1 Other URLs: hypertext transfer protocol : //journals.ametsoc.org/doi/10.1175/JCLI-D-14-00550.1
Volkov, Denis L.; Landerer, Felix W. (2015). Internal and external forcing of sea level variability in the Black Sea, Climate Dynamics, 9-10 (45), 2633-2646, 10.1007/s00382-015-2498-0. Title: Internal and external push of ocean level unevenness in the Black Sea Type: Journal article Publication: Climate Dynamics Author(s): Volkov, Denis L. ; Landerer, Felix W. Year: 2015 Formatted Citation: Volkov, D. L., and F. W. Landerer, 2015 : Internal and external pull of sea level unevenness in the Black Sea. Climate Dynamics, 45 ( 9-10 ), 2633-2646, doi:10.1007/s00382-015-2498-0 Abstract: The unevenness of sea level in the Black Sea is forced by a combination of inner and external processes of atmospheric, oceanic, and terrestrial origin. We use a combination of satellite altimetry and gravity, tide gauge, river exhaust, and atmospheric re-analysis data to provide a comprehensive up-to-date psychoanalysis of sea level variability in the Black Sea and to quantify the role of unlike environmental factors that force the unevenness. The Black Sea is share of a large-scale climatic system that includes the Mediterranean and the North Atlantic. The seasonal ocean level budget shows similar contributions of fresh water fluxes ( precipitation, dehydration, and river discharge ) and the Black Sea outflow, while the shock of the net airfoil heat flux is smaller although not negligible. We find that the nonseasonal sea level time series in the Black and Aegean seas are significantly correlated, the latter lead by 1 calendar month. This lag is attributed to the adjustment of sea level in the Black Sea to externally push changes of sea level in the Aegean Sea and to the impact of river discharge. The nonseasonal sea horizontal surface budget in the Black Sea is dominated by precipitation and vaporization over the sea itself, but external processes such as river discharge and changes in the outflow can besides cause some large synoptic-scale sea horizontal surface anomalies. Sea level is strongly coupled to planetary water storage over the Black Sea drain basin, which is modulated by the North Atlantic Oscillation\n ( NAO ). We show that during the low/high NAO southwesterly/northeasterly winds near the Strait of Gibraltar and southerly/northerly winds over the Aegean Sea are able to dynamically increase/decrease sea tied in the Mediterranean and Black seas, respectively. Keywords: ECCO Products Used: ECCO2URL: http://dx.doi.org/10.1007/s00382-015-2498-0 Other URLs:
Mu, Longjiang; Zhao, Jinping (2015). Analysis of the response of an Arctic icea-ocean coupled model to two different atmospheric reanalysis datasets, Haiyang Xuebao, 11 (37), 79-91, 10.3969/j.issn.0253-4193.2015.11.008. Title: psychoanalysis of the reaction of an Arctic icea-ocean coupled model to two different atmospheric reanalysis datasets Type: Journal article Publication: Haiyang Xuebao Author(s): Mu, Longjiang ; Zhao, Jinping Year: 2015 Formatted Citation: Mu, L., and J. Zhao, 2015 : analysis of the reception of an Arctic icea-ocean coupled model to two different atmospheric reanalysis datasets. Haiyang Xuebao, 37 ( 11 ), 79-91, doi:10.3969/j.issn.0253-4193.2015.11.008 Abstract: The downward radiative fluxes, wind speed, near surface temperature, haste, humidity got from Climate Forecast System Reanalysis ( CFSR ) and the japanese 25-year Reanalysis Project ( JRA25 ) are compared in this article. We find that most significant biases between the two datasets are precipitation, downward blend for both shortwave and longwave radiation. Driving by these two datasets, model results forced by CFSR shows big differences on ocean ice, Atlantic water and thermohaline structure in Canada basin compared to in situ observations, with the model geostrophic current on isopycnal surface 20 % higher than that forced by JRA25and a larger volume fluxes than that derived from SODA data. Sensitivity experiment forced by down radiative fluxes from CFSR, which have been evaluated to be close to observe values, demonstrates comparable results to experimental results. The cloud data plays a winder function in modeling ocean ice while fresh water blend brought by precipitation can change the heating system conveyance of Atlantic inflow prominently and carry a far effect on ocean ice in the Arctic. The overvalue precipitation in CFSR is the major for big biases of volume flux through Fram Strait, geostropic stream on isopycnal come on and thermohaline structure in central Arctic. Although reanalysis wind have different resolution for the two datasets, our results indicates that it carries an ignorable consequence on modeling sea ice and thermohaline structure on basin scale. Keywords: ECCO Products Used: ECCO2 URL: Other URLs:
Seo, Gwang-Ho; Choi, Byoung-Ju; Cho, Yang-Ki; Kim, Young Ho; Kim, Sangil (2015). Evaluation of a regional ocean reanalysis system for the East Asian Marginal Seas based on the ensemble Kalman filter, Ocean Science Journal, 1 (50), 29-48, 10.1007/s12601-015-0003-7. Title: Evaluation of a regional ocean reanalysis organization for the East Asian Marginal Seas based on the ensemble Kalman filter Type: Journal article Publication: Ocean Science Journal Author(s): Seo, Gwang-Ho ; Choi, Byoung-Ju ; Cho, Yang-Ki ; Kim, Young Ho ; Kim, Sangil Year: 2015 Formatted Citation: Seo, G., B. Choi, Y. Cho, Y. H. Kim, and S. Kim, 2015 : evaluation of a regional ocean reanalysis arrangement for the East Asian Marginal Seas based on the ensemble Kalman filter. Ocean Science Journal, 50 ( 1 ), 29-48, doi:10.1007/s12601-015-0003-7 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://link.springer.com/10.1007/s12601-015-0003-7 Other URLs:
Yang, Qinghua; Losa, Svetlana N.; Losch, Martin; Liu, Jiping; Zhang, Zhanhai; Nerger, Lars; Yang, Hu (2015). Assimilating summer sea-ice concentration into a coupled ice-ocean model using a LSEIK filter, Annals of Glaciology, 69 (56), 38-44, 10.3189/2015AoG69A740. Title: Assimilating summer sea-ice concentration into a copulate ice-ocean model using a LSEIK percolate Type: Journal article Publication: Annals of Glaciology Author(s): Yang, Qinghua ; Losa, Svetlana N. ; Losch, Martin ; Liu, Jiping ; Zhang, Zhanhai ; Nerger, Lars ; Yang, Hu Year: 2015 Formatted Citation: Yang, Q., S. N. Losa, M. Losch, J. Liu, Z. Zhang, L. Nerger, and H. Yang, 2015 : Assimilating summer sea-ice concentration into a couple ice-ocean exemplary using a LSEIK filter. Annals of Glaciology, 56 ( 69 ), 38-44, doi:10.3189/2015AoG69A740 Abstract: The decrease in summer sea-ice extent in the Arctic Ocean opens shipping routes and creates electric potential for many marine operations. For these activities accurate predictions of sea-ice conditions are required to maintain marine condom. In an undertake at Arctic sea-ice prediction, the summer of 2010 is selected to implement an arctic sea-ice data assimilation ( DA ) discipline. The DA system is based on a regional Arctic configuration of the Massachusetts Institute of Technology general circulation model ( MITgcm ) and a local singular evolutive interpolated Kalman ( LSEIK ) filter to assimilate Special Sensor Microwave Imager/Sounder ( SSMIS ) sea-ice concentration functional products from the US National Snow and Ice Data Center ( NSIDC ). Based on comparisons with both the assimilated NSIDC SSMIS concentration and concentration data from the Ocean and Sea Ice Satellite Application Facility, the forecast sea-ice edge and concentration improve upon simulations without data assimilation. By the nature of the assimilation algorithm with multivariate covariance between ice concentration and thickness, sea-ice thickness fields are besides updated, and the evaluation with in situ notice shows some improvement compared to the calculate without data acculturation. Keywords: ECCO Products Used: ECCO2 ; SeaIceURL: https://www.cambridge.org/core/product/identifier/S0260305500261223/type/journal_article Other URLs:
Buckley, Martha W; Ponte, Rui M; Forget, Gaël; Heimbach, Patrick (2015). Determining the origins of advective heat transport convergence variability in the North Atlantic, Journal of Climate, 10 (28), 3943-3956, 10.1175/JCLI-D-14-00579.1. Title: Determining the origins of advective heating system conveyance overlap unevenness in the North Atlantic Type: Journal article Publication: Journal of Climate Author(s): Buckley, Martha W ; Ponte, Rui M ; Forget, Gaël ; Heimbach, Patrick Year: 2015 Formatted Citation: Buckley, M. W., R. M. Ponte, G. Forget, and P. Heimbach, 2015 : Determining the origins of advective heat transportation convergence unevenness in the North Atlantic. J. Clim., 28 ( 10 ), 3943-3956, doi:10.1175/JCLI-D-14-00579.1 Abstract: A holocene department of state appraisal covering the period 1992-2010 from the Estimating the Circulation and Climate of the Ocean ( ECCO ) visualize is utilized to quantify the roles of air-sea inflame fluxes and advective heat transmit convergences in setting upper-ocean heat capacity anomalies H in the North Atlantic Ocean on monthly to interannual meter scales. Anomalies in ( analogue ) advective heat transport convergences, deoxyadenosine monophosphate well as Ekman and geostrophic contributions, are decomposed into parts that are due to speed unevenness, temperature unevenness, and their covariability. Ekman convergences are generally dominated by unevenness in Ekman mass transports, which reflect the instantaneous response to local hoist storm, except in the tropics, where variability in the temperature field plays a significant character. In contrast, both budget analyses and bare dynamic arguments demonstrate that geostrophic heat ecstasy convergences that are due to temperature and speed unevenness are anticorrelated, and thus their separate treatment is not insightful. In the home of the subtropical coil, the sum of air-sea inflame fluxes and Ekman heat conveyance convergences is a reasonable measure of local anesthetic atmospheric storm, and such force explains the majority of H unevenness on all time scales resolved by ECCO. In contrast, in the Gulf Stream region and subpolar coil, ocean dynamics are found to be important in setting H on interannual time scales. Air-sea heat fluxes dampen anomalies created by the ocean and frankincense are not set by local atmospheric unevenness. Keywords: Ekman pumping/transport, Forcing, Ocean circulation, Ocean dynamics, Rossby waves, Sea come on temperature ECCO Products Used: ECCO-V4URL: http://journals.ametsoc.org/doi/abs/10.1175/JCLI-D-14-00579.1 Other URLs:
Brown, Peter J.; Jullion, Loïc; Landschützer, Peter; Bakker, Dorothee C. E.; Naveira Garabato, Alberto C.; Meredith, Michael P.; Torres-Valdés, Sinhue; Watson, Andrew J.; Hoppema, Mario; Loose, Brice; Jones, Elizabeth M.; Telszewski, Maciej; Jones, Steve D.; Wanninkhof, Rik (2015). Carbon dynamics of the Weddell Gyre, Southern Ocean, Global Biogeochemical Cycles, 3 (29), 288-306, 10.1002/2014GB005006. Title: Carbon dynamics of the Weddell Gyre, Southern Ocean Type: Journal article Publication: Global Biogeochemical Cycles Author(s): Brown, Peter J. ; Jullion, Loïc ; Landschützer, Peter ; Bakker, Dorothee C. E. ; Naveira Garabato, Alberto C. ; Meredith, Michael P. ; Torres-Valdés, Sinhue ; Watson, Andrew J. ; Hoppema, Mario ; Loose, Brice ; Jones, Elizabeth M. ; Telszewski, Maciej ; Jones, Steve D. ; Wanninkhof, Rik Year: 2015 Formatted Citation: Brown, P. J. and Coauthors, 2015 : Carbon dynamics of the Weddell Gyre, Southern Ocean. Global Biogeochemical Cycles, 29 ( 3 ), 288-306, doi:10.1002/2014GB005006 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2014GB005006 Other URLs:
Bigdeli, Arash (2015). Initial Validation of Surface Ocean Properties in MITgcm Arctic Regional Model. Title: Initial Validation of Surface Ocean Properties in MITgcm Arctic Regional Model Type: dissertation Publication: Author(s): Bigdeli, Arash Year: 2015 Formatted Citation: Bigdeli, A., 2015 : initial Validation of Surface Ocean Properties in MITgcm Arctic Regional Model. hypertext transfer protocol : //digitalcommons.uri.edu/theses/819. Abstract: In ice-covered regions it can be challenging to determine air-sea commute – for heat and momentum, but besides for gases like carbon paper dioxide and methane. The harsh environment and relative data scarcity make it difficult to characterize even the physical properties. here, we seek a mechanistic interpretation for the rate of air-sea gasoline switch over ( potassium ) derived from radon-deficits. These require an estimate of the body of water column history extending 30 days prior to sampling. We used coarse resolution ( 36km ) regional shape of the MITgcm with all right near airfoil vertical spacing ( 2m ) to evaluate the capability of the model to reproduce conditions prior to sampling. The model is used to estimates sea-ice speed, concentration and mixed-layer depth experienced by the water system column .We then compared the exemplary results to existing plain data including satellite, moorings and Ice-tethered profilers. We found that sea- frosting coverage have 88 to 98 % accuracy, sea-ice velocities have 78 % correlation which resulted in 2 km/day error in 30 day trajectory of sea-ice. exemplar showed the capacitance to capture interracial layer development trends although with a bias and water velocities showed merely 29 % correlation coefficient with actual data. Using the capacity of the mannequin to produce same decree of magnitude of water travel rapidly we calculated an average radius of possible origins of water parcel adequate to 10.3 km. Keywords: ECCO Products Used: ECCO2URL: http://digitalcommons.uri.edu/theses/819 Other URLs:
McCaffrey, Katherine; Fox-Kemper, Baylor; Forget, Gael (2015). Estimates of ocean macroturbulence: Structure function and spectral slope from Argo profiling floats, Journal of Physical Oceanography, 7 (45), 1773-1793, 10.1175/JPO-D-14-0023.1. Title: Estimates of ocean macroturbulence : structure affair and apparitional slope from Argo profiling floats Type: Journal article Publication: Journal of Physical Oceanography Author(s): McCaffrey, Katherine ; Fox-Kemper, Baylor ; Forget, Gael Year: 2015 Formatted Citation: McCaffrey, K., B. Fox-Kemper, and G. Forget, 2015 : Estimates of ocean macroturbulence : structure serve and apparitional slope from Argo profiling floats. Journal of Physical Oceanography, 45 ( 7 ), 1773-1793, doi:10.1175/JPO-D-14-0023.1 Abstract: The Argo profile ice-cream soda network has repeatedly sampled a lot of the World Ocean. This study uses Argo temperature and salt data to form the tracer structure function of ocean unevenness at the macroscale ( 10-1000 kilometer, mesoscale and above ). here, second-order temperature and brininess structure functions over horizontal separations are calculated along either blackmail or electric potential density surfaces, which allows analysis of both active and passive tracer structure functions. Using Argo data, a map of global discrepancy is created from the climatological average and each datum. When turbulence is homogeneous, the structure officiate slope from Argo can be related to the wavenumber spectrum gradient in ocean temperature or salt unevenness. This first application of social organization function techniques to Argo data gives physically meaningful results based on bootstrapped confidence intervals, showing geographic addiction of the social organization functions with slopes near ⅔ on median, freelancer of depth. Keywords: ECCO Products Used: URL: http://journals.ametsoc.org/doi/abs/10.1175/JPO-D-14-0023.1 Other URLs:
Chen, Zhaohui; Wu, Lixin; Qiu, Bo; Li, Lei; Hu, Dunxin; Liu, Chengyan; Jia, Fan; Liang, Xi (2015). Strengthening Kuroshio observed at its origin during November 2010 to October 2012, Journal of Geophysical Research: Oceans, 4 (120), 2460-2470, 10.1002/2014JC010590. Title: Strengthening Kuroshio observed at its beginning during November 2010 to October 2012 Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Chen, Zhaohui ; Wu, Lixin ; Qiu, Bo ; Li, Lei ; Hu, Dunxin ; Liu, Chengyan ; Jia, Fan ; Liang, Xi Year: 2015 Formatted Citation: Chen, Z., L. Wu, B. Qiu, L. Li, D. Hu, C. Liu, F. Jia, and X. Liang, 2015 : Strengthening Kuroshio observed at its origin during November 2010 to October 2012. J. Geophys. Res. Ocean., 120 ( 4 ), 2460-2470, doi:10.1002/2014JC010590 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2014JC010590 Other URLs:
Bogusz, Janusz; Brzezinski, Aleksander; Kosek, Wieslaw; Nastula, Jolanta (2015). Earth rotation and geodynamics, Geodesy and Cartography, 2 (64), 201-242, 10.1515/geocart-2015-0013. Title: Earth rotation and geodynamics Type: Journal article Publication: Geodesy and Cartography Author(s): Bogusz, Janusz ; Brzezinski, Aleksander ; Kosek, Wieslaw ; Nastula, Jolanta Year: 2015 Formatted Citation: Bogusz, J., A. Brzezinski, W. Kosek, and J. Nastula, 2015 : worldly concern rotation and geodynamics. Geodesy and Cartography, 64 ( 2 ), 201-242, doi:10.1515/geocart-2015-0013 Abstract: This newspaper presents the compendious of research activities carried out in Poland in 2011-2014 in the plain of Earth rotation and geodynamics by respective polish inquiry institutions. It contains a drumhead of works on Earth rotation, including evaluation and prediction of its parameters and psychoanalysis of the relate excitement data vitamin a well as research on consociate geodynamic phenomena such as geocentre motion, ball-shaped sea degree change and hydrological processes. The second part of the paper deals with monitor of geodynamic phenomenon. It contains analysis of geodynamic networks of local, and regional plate using space ( GNSS and SLR ) techniques, Earth tides monitoring with gravimeters and water-tube hydrostatic clinometer, and the decision of secular magnetic declination of the Earth ‘ magnetic field. Keywords: ECCO Products Used: ECCO-KFSURL: http://content.sciendo.com/view/journals/geocart/64/2/article-p201.xml Other URLs:
Balmaseda, M A; Hernandez, F; Storto, A; Palmer, M D; Alves, O; Shi, L; Smith, G C; Toyoda, T; Valdivieso, M; Barnier, B; Behringer, D; Boyer, T; Chang, Y S; Chepurin, G A; Ferry, N; Forget, G; Fujii, Y; Good, S; Guinehut, S; Haines, K; Ishikawa, Y; Keeley, S; Köhl, A; Lee, T; Martin, M J; Masina, S; Masuda, S; Meyssignac, B; Mogensen, K; Parent, L; Peterson, K A; Tang, Y M; Yin, Y; Vernieres, G; Wang, X; Waters, J; Wedd, R; Wang, O; Xue, Y; Chevallier, M; Lemieux, J F; Dupont, F; Kuragano, T; Kamachi, M; Awaji, T; Caltabiano, A; Wilmer-Becker, K; Gaillard, F (2015). The Ocean Reanalyses Intercomparison Project (ORA-IP), Journal of Operational Oceanography, sup1 (8), s80-s97, 10.1080/1755876X.2015.1022329. Title: The Ocean Reanalyses Intercomparison Project ( ORA-IP ) Type: Journal article Publication: Journal of Operational Oceanography Author(s): Balmaseda, M A ; Hernandez, F ; Storto, A ; Palmer, M D ; Alves, O ; Shi, L ; Smith, G C ; Toyoda, T ; Valdivieso, M ; Barnier, B ; Behringer, D ; Boyer, T ; Chang, Y S ; Chepurin, G A ; Ferry, N ; Forget, G ; Fujii, Y ; Good, S ; Guinehut, S ; Haines, K ; Ishikawa, Y ; Keeley, S ; Köhl, A ; Lee, T ; Martin, M J ; Masina, S ; Masuda, S ; Meyssignac, B ; Mogensen, K ; Parent, L ; Peterson, K A ; Tang, Y M ; Yin, Y ; Vernieres, G ; Wang, X ; Waters, J ; Wedd, R ; Wang, O ; Xue, Y ; Chevallier, M ; Lemieux, J F ; Dupont, F ; Kuragano, T ; Kamachi, M ; Awaji, T ; Caltabiano, A ; Wilmer-Becker, K ; Gaillard, F Year: 2015 Formatted Citation: Balmaseda, M. A. and Coauthors, 2015 : The Ocean Reanalyses Intercomparison Project ( ORA-IP ). Journal of Operational Oceanography, 8 ( sup1 ), s80-s97, doi:10.1080/1755876X.2015.1022329 Abstract: Uncertainty in ocean analysis methods and deficiencies in the observant arrangement are major obstacles for the dependable reconstruction of the by ocean climate. The variety of existing ocean reanalyses is exploited in a multi-reanalysis ensemble to improve the ocean country estimate and to gauge uncertainty levels. The ensemble-based analysis of signal-to-noise ratio proportion allows the identification of ocean characteristics for which the estimate is robust ( such as tropical mixed-layer-depth, upper ocean hotness content ), and where big doubt exists ( deep ocean, Southern Ocean, sea methamphetamine thickness, brininess ), providing guidance for future enhancement of the note and data assimilation systems. Keywords: ECCO Products Used: ECCO-KFS ; ECCO-V4 ; GECCO2URL: http://dx.doi.org/10.1080/1755876X.2015.1022329 Other URLs:
Forget, G; Campin, Jean-Michel; Heimbach, P; Hill, C N; Ponte, R M; Wunsch, C (2015). ECCO version 4: an integrated framework for non-linear inverse modeling and global ocean state estimation, Geosci. Model Dev., 10 (8), 3071-3104, 10.5194/gmd-8-3071-2015. Title: ECCO adaptation 4 : an incorporate framework for non-linear inverse modeling and ball-shaped ocean state estimate Type: Journal article Publication: Geosci. Model Dev. Author(s): Forget, G ; Campin, Jean-Michel ; Heimbach, P ; Hill, C N ; Ponte, R M ; Wunsch, C Year: 2015 Formatted Citation: Forget, G., J. Campin, P. Heimbach, C. N. Hill, R. M. Ponte, and C. Wunsch, 2015 : ECCO version 4 : an integrated framework for non-linear inverse model and ball-shaped ocean express appraisal. Geosci. Model Dev., 8 ( 10 ), 3071-3104, doi:10.5194/gmd-8-3071-2015 Abstract: Keywords: ECCO Products Used: ECCO-KFS ; ECCO-V2 ; ECCO-V3 ; ECCO-V4 ; ECCO2 ; GECCO2URL: http://www.geosci-model-dev.net/8/3071/2015/ Other URLs:
Higginson, S.; Thompson, K. R.; Woodworth, P. L.; Hughes, C. W. (2015). The tilt of mean sea level along the east coast of North America, Geophysical Research Letters, 5 (42), 1471-1479, 10.1002/2015GL063186. Title: The controversy of mean sea floor along the east coast of North America Type: Journal article Publication: Geophysical Research Letters Author(s): Higginson, S. ; Thompson, K. R. ; Woodworth, P. L. ; Hughes, C. W. Year: 2015 Formatted Citation: Higginson, S., K. R. Thompson, P. L. Woodworth, and C. W. Hughes, 2015 : The cant of beggarly sea tied along the east coast of North America. Geophys. Res. Lett., 42 ( 5 ), 1471-1479, doi:10.1002/2015GL063186 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2015GL063186 Other URLs:
Vondrák, Jan; Ron, C. (2015). Earth orientation and its excitations by atmosphere, oceans, and geomagnetic jerks, Serbian Astronomical Journal, 191, 59-66, 10.2298/SAJ1591059V. Title: Earth predilection and its excitations by atmosphere, oceans, and geomagnetic jerks Type: Journal article Publication: serbian Astronomical Journal Author(s): Vondrák, Jan ; Ron, C. Year: 2015 Formatted Citation: Vondrák, J., and C. Ron, 2015 : ground orientation and its excitations by atmosphere, oceans, and geomagnetic jerks. serbian Astronomical Journal ( 191 ), 59-66, doi:10.2298/SAJ1591059V Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: http://www.doiserbia.nb.rs/Article.aspx?ID=1450-698X1591059V Other URLs:
Cerovečki, Ivana; Mazloff, Matthew R (2015). The spatiotemporal structure of diabatic processes governing the evolution of Subantarctic Mode Water in the Southern Ocean, Journal of Physical OceanographyJournal of Physical Oceanography, 10.1175/JPO-D-14-0243.1. Title: The spatiotemporal structure of diabatic processes governing the evolution of Subantarctic Mode Water in the southerly Ocean Type: Journal article Publication: Journal of Physical OceanographyJournal of Physical Oceanography Author(s): Cerovečki, Ivana ; Mazloff, Matthew R Year: 2015 Formatted Citation: Cerovečki, I., and M. R. Mazloff, 2015 : The spatiotemporal structure of diabatic processes governing the development of Subantarctic Mode Water in the southerly Ocean. Journal of Physical OceanographyJournal of Physical Oceanography, doi:10.1175/JPO-D-14-0243.1 Abstract: A copulate ice-ocean eddy-permitting southerly Ocean State Estimate ( SOSE ) for 2008-2010 is used to describe and quantify the processes form and destroying body of water in the Subantarctic Mode Water ( SAMW ) concentration stove ( σθ=26.7 – 27.2 kilogram m-3 ). All the terms in the temperature and brininess equations have been diagnosed to obtain a three dimensional and meter vary volume budget for individual isopycnal layers. We find that air-sea buoyancy fluxes, diapycnal mix, advection, and storage are all important to the SAMW volume budget. The formation and destruction of water in the SAMW density range occurs over a big latitude range ascribable to the seasonal migration of the outcrop window. The strongest formation is by winter surface ocean inflame loss occurring equatorward of the Subantarctic Front. jump and summer formation occur in the polar gyres by freshening of water with σθ > 27.2 kilogram m-3, with an crucial contribution from sea ice thaw. promote buoyancy gain by heating is accomplished only after these waters have already been transformed into the SAMW density crop. The spatially integrate and time-averaged SAMW formation rate in the ocean surface layer is 7.9 Sv by air-sea buoyancy fluxes and 8.8 Sv by diapycnal mix, and it is balanced by advective export into the inside ocean. These average rates are the result of highly variable processes with potent cancellation in both space and time. In this work we map the spatiotemporal structure of the constitution and evolution processes that must be represented in climate models in order to properly represent the three-dimensional Southern Ocean overturning circulation. Keywords: ECCO Products Used: SOSE URL: Other URLs:
Chen, Ru; Flierl, Glenn R.; Wunsch, Carl (2015). Quantifying and Interpreting Striations in a Subtropical Gyre: A Spectral Perspective, Journal of Physical Oceanography, 2 (45), 387-406, 10.1175/JPO-D-14-0038.1. Title: Quantifying and Interpreting Striations in a subtropical coil : A Spectral Perspective Type: Journal article Publication: Journal of Physical Oceanography Author(s): Chen, Ru ; Flierl, Glenn R. ; Wunsch, Carl Year: 2015 Formatted Citation: Chen, R., G. R. Flierl, and C. Wunsch, 2015 : quantify and Interpreting Striations in a subtropical coil : A Spectral Perspective. Journal of Physical Oceanography, 45 ( 2 ), 387-406, doi:10.1175/JPO-D-14-0038.1 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/10.1175/JPO-D-14-0038.1 Other URLs:
Kunze, Eric (2015). Finescale Water-Mass Variability from ARGO Profiling Floats. Title: Finescale Water-Mass Variability from ARGO Profiling Floats Type: Report Publication: Author(s): Kunze, Eric Year: 2015 Formatted Citation: Kunze, E., 2015 : Finescale Water-Mass variability from ARGO Profiling Floats., 4 pp. Abstract: LONGTERM GOALS. My longterm goals are understanding the processes responsible for stirring and mixing in the ocean in ordering to better parameterize their impacts on larger scales. OBJECTIVES. To obtain a global appraisal of mesoscale water-mass unevenness lengthscales and diffusivities, angstrom well as density ratio statistics from the ARGO profiling float data set. Keywords: data bases, concentration, eddy currents, floats, global, impact, oceans, ratios, statistics, urine masses ECCO Products Used: ECCO2URL: https://apps.dtic.mil/dtic/tr/fulltext/u2/1014386.pdf Other URLs: hypertext transfer protocol : //apps.dtic.mil/docs/citations/ADA624695
Zemskova, Varvara E.; White, Brian L.; Scotti, Alberto (2015). Available Potential Energy and the General Circulation: Partitioning Wind, Buoyancy Forcing, and Diapycnal Mixing, Journal of Physical Oceanography, 6 (45), 1510-1531, 10.1175/JPO-D-14-0043.1. Title: Available Potential Energy and the General Circulation : Partitioning Wind, Buoyancy Forcing, and Diapycnal Mixing Type: Journal article Publication: Journal of Physical Oceanography Author(s): Zemskova, Varvara E. ; White, Brian L. ; Scotti, Alberto Year: 2015 Formatted Citation: Zemskova, V. E., B. L. White, and A. Scotti, 2015 : available Potential Energy and the General Circulation : Partitioning Wind, Buoyancy Forcing, and Diapycnal Mixing. Journal of Physical Oceanography, 45 ( 6 ), 1510-1531, doi:10.1175/JPO-D-14-0043.1 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/10.1175/JPO-D-14-0043.1 Other URLs:
Watkins, Michael M.; Wiese, David N.; Yuan, Dah-Ning; Boening, Carmen; Landerer, Felix W. (2015). Improved methods for observing Earth’s time variable mass distribution with GRACE using spherical cap mascons, Journal of Geophysical Research: Solid Earth, 4 (120), 2648-2671, 10.1002/2014JB011547. Title: Improved methods for observing Earth ’ mho clock time variable mass distribution with GRACE using spherical cap mascons Type: Journal article Publication: Journal of Geophysical Research : hearty worldly concern Author(s): Watkins, Michael M. ; Wiese, David N. ; Yuan, Dah-Ning ; Boening, Carmen ; Landerer, Felix W. Year: 2015 Formatted Citation: Watkins, M. M., D. N. Wiese, D. Yuan, C. Boening, and F. W. Landerer, 2015 : Improved methods for observing Earth ‘s time variable mass distribution with GRACE using ball-shaped cap mascons. Journal of Geophysical Research : solid Earth, 120 ( 4 ), 2648-2671, doi:10.1002/2014JB011547 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2014JB011547 Other URLs:
Flexas, M. M.; Schodlok, M. P.; Padman, L.; Menemenlis, Dimitris; Orsi, A. H. (2015). Role of tides on the formation of the Antarctic Slope Front at the Weddell-Scotia Confluence, Journal of Geophysical Research: Oceans, 5 (120), 3658-3680, 10.1002/2014JC010372. Title: Role of tides on the formation of the Antarctic Slope Front at the Weddell-Scotia confluence Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Flexas, M. M. ; Schodlok, M. P. ; Padman, L. ; Menemenlis, Dimitris ; Orsi, A. H. Year: 2015 Formatted Citation: Flexas, M. M., M. P. Schodlok, L. Padman, D. Menemenlis, and A. H. Orsi, 2015 : function of tides on the constitution of the Antarctic Slope Front at the Weddell-Scotia Confluence. J. Geophys. Res. Ocean., 120 ( 5 ), 3658-3680, doi:10.1002/2014JC010372 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2014JC010372 Other URLs:
Liu, Junjie; Bowman, Kevin W.; Henze, Daven K. (2015). Source-receptor relationships of column-average CO 2 and implications for the impact of observations on flux inversions, Journal of Geophysical Research: Atmospheres, 10 (120), 5214-5236, 10.1002/2014JD022914. Title: Source-receptor relationships of column-average CO 2 and implications for the affect of observations on flux inversions Type: Journal article Publication: Journal of Geophysical Research : Atmospheres Author(s): Liu, Junjie ; Bowman, Kevin W. ; Henze, Daven K. Year: 2015 Formatted Citation: Liu, J., K. W. Bowman, and D. K. Henze, 2015 : Source-receptor relationships of column-average CO 2 and implications for the shock of observations on magnetic field inversions. Journal of Geophysical Research : Atmospheres, 120 ( 10 ), 5214-5236, doi:10.1002/2014JD022914 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2014JD022914 Other URLs:
Whitefield, Jonathan; Winsor, Peter; McClelland, James; Menemenlis, Dimitris (2015). A new river discharge and river temperature climatology data set for the pan-Arctic region, Ocean Modelling (88), 1-15, 10.1016/j.ocemod.2014.12.012. Title: A newfangled river discharge and river temperature climatology data fixed for the pan-Arctic area Type: Journal article Publication: Ocean Modelling Author(s): Whitefield, Jonathan ; Winsor, Peter ; McClelland, James ; Menemenlis, Dimitris Year: 2015 Formatted Citation: Whitefield, J., P. Winsor, J. McClelland, and D. Menemenlis, 2015 : A new river dismissal and river temperature climatology data set for the pan-Arctic area. Ocean Modelling, 88, 1-15, doi:10.1016/j.ocemod.2014.12.012 Abstract: Most regional ocean models that use discharge as separate of the impel use relatively coarse river free data sets ( 1°, or ∼110 kilometer ) compared to the model resolution ( typically 1/4° or less ), and do not account for seasonal changes in river water temperature. We introduce a new climatological data laid of river discharge and river water temperature with 1/6° grid space over the Arctic region ( Arctic River Discharge and Temperature ; ARDAT ), incorporating observations from 30 arctic rivers. The annual base discharge for all rivers in ARDAT is 2817 ± 330 km3 yr−1. River water temperatures range between 0 °C in winter to 14.0-17.6 °C in July, leading to a long-run mean monthly heat flux from all rivers of 3.2 ± 0.6 TW, of which 31 % is supplied by alaskan rivers and 69 % is supplied by eurasian rivers. This riverine heat flux is equivalent to 44 % of the estimated ocean heat flux density associated with the Bering Strait throughflow, but during the form freshet can be ∼10 times as big, suggesting that heat flux associated with Arctic rivers is an important part of the Arctic inflame budget on seasonal worker time scales. We apply the ARDAT datum set to a high-resolution regional ocean-ice model, and compare results to a exemplar integration using a 1° resolution discharge data set. Integrated fresh water content on the Arctic shelves ( < 200 thousand ) increases by ∼3600 km3 in the ARDAT forced model run compared to the coarse force, suggesting that river empty is contained on the Arctic shelves when forced with the ARDAT data set. Modelled summer heating system fluxes over the shelves increase by 8 TW when river water temperature is included, which subsequently reduces basin-wide September sea ice extent by ∼10 %. regional differences are larger, where for example, ocean frost extent on the Beaufort shelf is reduced by ∼36 %. Using a non-linear loose coat parameterization along with the ARDAT datum plant, we find an increase in the sea come on height gradient around river mouths. Geostrophic velocities increase to form quasi-continuous, fast-moving near-shore boundary currents not reproduced using the 1° resolution data determine. Omitting river water system temperature, or using a lower resolution data set, can therefore go to incorrect model estimates of coastal transport, sea internal-combustion engine formation/melt rates, and other regional and washbasin scale processes. Using a high-resolution free data set, and account for the considerable heat carried by the Arctic rivers is recommended for future model efforts. Keywords: Arctic Ocean, Climatology, Heat content, Modelling, River discharge, Sea ice ECCO Products Used: ECCO2URL: http://www.sciencedirect.com/science/article/pii/S1463500315000025 Other URLs:
Furue, Ryo; Jia, Yanli; McCreary, Julian P.; Schneider, Niklas; Richards, Kelvin J.; Müller, Peter; Cornuelle, Bruce D.; Avellaneda, Nidia Martínez; Stammer, Detlef; Liu, Chuanyu; Köhl, Armin (2015). Impacts of regional mixing on the temperature structure of the equatorial Pacific Ocean. Part 1: Vertically uniform vertical diffusion, Ocean Modelling (91), 91-111, 10.1016/j.ocemod.2014.10.002. Title: Impacts of regional blend on the temperature structure of the equatorial Pacific Ocean. Part 1 : vertically undifferentiated vertical diffusion Type: Journal article Publication: Ocean Modelling Author(s): Furue, Ryo ; Jia, Yanli ; McCreary, Julian P. ; Schneider, Niklas ; Richards, Kelvin J. ; Müller, Peter ; Cornuelle, Bruce D. ; Avellaneda, Nidia Martínez ; Stammer, Detlef ; Liu, Chuanyu ; Köhl, Armin Year: 2015 Formatted Citation: Furue, R. and Coauthors, 2015 : Impacts of regional blend on the temperature structure of the equatorial Pacific Ocean. Part 1 : vertically uniform erect diffusion. Ocean Modelling, 91, 91-111, doi:10.1016/j.ocemod.2014.10.002 Abstract: Keywords: ECCO Products Used: SOSEURL: https://linkinghub.elsevier.com/retrieve/pii/S1463500314001425 Other URLs:
Root, T L; Hall, K R; Herzog, M P; Howell, C A (2015). Biodiversity in a Changing Climate: Linking Science and Management in Conservation. Title: Biodiversity in a change climate : Linking Science and Management in Conservation Type: Book Publication: Author(s): Root, T L ; Hall, K R ; Herzog, M P ; Howell, C A Year: 2015 Formatted Citation: Root, T. L., K. R. Hall, M. P. Herzog, and C. A. Howell, 2015 : biodiversity in a change climate : Linking Science and Management in Conservation. University of California Press hypertext transfer protocol : //books.google.com/books ? id=LfDLBwAAQBAJ. Abstract: Keywords: ECCO Products Used: ECCO2URL: https://books.google.com/books?id=LfDLBwAAQBAJ Other URLs:
Tyler, Robert (2015). Electromagnetic coupling of ocean flow with the Earth System, Terrestrial, Atmospheric and Oceanic Sciences, 1 (26), 41-52, 10.3319/TAO.2014.08.19.04(GRT). Title: Electromagnetic yoke of ocean flow with the earth System Type: Journal article Publication: Terrestrial, Atmospheric and Oceanic Sciences Author(s): Tyler, Robert Year: 2015 Formatted Citation: Tyler, R., 2015 : electromagnetic copulate of ocean flow with the Earth System. Terrestrial, Atmospheric and Oceanic Sciences, 26 ( 1 ), 41-52, doi:10.3319/TAO.2014.08.19.04 ( GRT ) Abstract: Keywords: Electrodynamics, Electromagnetic yoke, Induction, Ocean flow ECCO Products Used: ECCO-KFS URL: Other URLs:
Wang, Yonggang; Wei, Zexun; Lian, Zhan; Yang, Yongzeng (2015). Development of an Ocean Current Forecast System for the South China Sea, Aquatic Procedia (3), 157-164, 10.1016/j.aqpro.2015.02.206. Title: Development of an Ocean Current Forecast System for the South China Sea Type: Journal article Publication: Aquatic Procedia Author(s): Wang, Yonggang ; Wei, Zexun ; Lian, Zhan ; Yang, Yongzeng Year: 2015 Formatted Citation: Wang, Y., Z. Wei, Z. Lian, and Y. Yang, 2015 : Development of an Ocean Current Forecast System for the South China Sea. Aquatic Procedia, 3, 157-164, doi:10.1016/j.aqpro.2015.02.206 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://linkinghub.elsevier.com/retrieve/pii/S2214241X15002072 Other URLs:
Dinniman, Michael S.; Klinck, John M.; Bai, Le-Sheng; Bromwich, David H.; Hines, Keith M.; Holland, David M. (2015). The Effect of Atmospheric Forcing Resolution on Delivery of Ocean Heat to the Antarctic Floating Ice Shelves, Journal of Climate, 15 (28), 6067-6085, 10.1175/JCLI-D-14-00374.1. Title: The Effect of Atmospheric Forcing Resolution on Delivery of Ocean Heat to the Antarctic Floating Ice Shelves Type: Journal article Publication: Journal of Climate Author(s): Dinniman, Michael S. ; Klinck, John M. ; Bai, Le-Sheng ; Bromwich, David H. ; Hines, Keith M. ; Holland, David M. Year: 2015 Formatted Citation: Dinniman, M. S., J. M. Klinck, L. Bai, D. H. Bromwich, K. M. Hines, and D. M. Holland, 2015 : The Effect of Atmospheric Forcing Resolution on Delivery of Ocean Heat to the Antarctic Floating Ice Shelves. J. Clim., 28 ( 15 ), 6067-6085, doi:10.1175/JCLI-D-14-00374.1 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/10.1175/JCLI-D-14-00374.1 Other URLs:
Stroh, J. N.; Panteleev, Gleb; Kirillov, Sergey; Makhotin, Mikhail; Shakhova, Natalia (2015). Sea-surface temperature and salinity product comparison against external in situ data in the Arctic Ocean, Journal of Geophysical Research: Oceans, 11 (120), 7223-7236, 10.1002/2015JC011005. Title: Sea-surface temperature and salt product comparison against external in situ data in the Arctic Ocean Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Stroh, J. N. ; Panteleev, Gleb ; Kirillov, Sergey ; Makhotin, Mikhail ; Shakhova, Natalia Year: 2015 Formatted Citation: Stroh, J. N., G. Panteleev, S. Kirillov, M. Makhotin, and N. Shakhova, 2015 : Sea-surface temperature and brininess product comparison against external in situ data in the Arctic Ocean. J. Geophys. Res. Ocean., 120 ( 11 ), 7223-7236, doi:10.1002/2015JC011005 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2015JC011005 Other URLs:
Van der Stocken, Tom (2015). Biological and environmental drivers of mangrove propagule dispersal: A field and modeling approach. Title: Biological and environmental drivers of mangrove propagule dispersion : A field and model approach Type: dissertation Publication: Author(s): Van five hundred Stocken, Tom Year: 2015 Formatted Citation: Van five hundred Stocken, T., 2015 : biological and environmental drivers of mangrove propagule dispersion : A field and modeling set about. Vrije Universiteit Brussel and the Universite Libre de Bruxelles, Ph.D., 190 pp. hypertext transfer protocol : //www.vliz.be/en/imis ? module=ref & refid=289661. Abstract: Mangrove ecosystems function at the edge of nation and ocean, much covering boastfully intertidal areasalong ( bomber ) tropical coastal regions worldwide but besides in a wide array of early topographical settings. once or twice a day, tides move seawater in and out, consecutively submerging and exposing the intertidal surface, while fresh water now and then, at moments of big rain, may enter the system from the estate. Mangroves can live in these highly dynamic and demanding environmental conditions via a series of noteworthy adaptations such as aerial roots ( pneumatophores ), specialize cells in their leaves to excrete salt and the production of buoyant seeds and fruits ( propagules ) that disperse at the ocean coat ( i.e. hydrochory ). With their dense root networks, mangroves present a natural breeding ground and greenhouse for juvenile fish and provide shelter to many early animal species, rendering mangrove systems ecologically invaluable. From a socio-economical point of view, these forests sustain fisheries, provide firewood and woodwind for charcoal and construction. They may offer coastal security to natural disasters such as storm surges and under certain conditions against tsunami. Despite their ecological and economical value, about 40 % of master mangroves have been lost worldwide during the last 50 years due to excessive exploitation and exploitation. Deforestation, abasement and conversion to other land uses like intensive shrimp farming and farming have reduced and fragmented these ecosystems at an alarming rate. Climate change, probably most pronouncedly via changes in sea level, poses another important threat. In this dissertation we investigate some understudy but important aspects of the dispersion process in mangroves, with as the main objective the reduction of argument and model uncertainty. In this way more authentic predictions of dispersion patterns and long-run population dynamics under different climate change scenarios can be expected. Keywords: ECCO Products Used: ECCO2URL: http://www.vliz.be/en/imis?module=ref&refid=289661 Other URLs:
Halkides, D J; Waliser, Duane E; Lee, Tong; Menemenlis, Dimitris; Guan, Bin (2015). Quantifying the processes controlling intraseasonal mixed-layer temperature variability in the tropical Indian Ocean, Journal of Geophysical Research: Oceans, 2 (120), 692-715, 10.1002/2014JC010139. Title: Quantifying the processes controlling intraseasonal mixed-layer temperature variability in the tropical indian Ocean Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Halkides, D J ; Waliser, Duane E ; Lee, Tong ; Menemenlis, Dimitris ; Guan, Bin Year: 2015 Formatted Citation: Halkides, D. J., D. E. Waliser, T. Lee, D. Menemenlis, and B. Guan, 2015 : Quantifying the processes controlling intraseasonal mixed-layer temperature unevenness in the tropical indian Ocean. J. Geophys. Res. Ocean., 120 ( 2 ), 692-715, doi:10.1002/2014JC010139 Abstract: Spatial and worldly pas seul of processes that determine ocean mixed-layer ( ML ) temperature ( MLT ) variability on the timescale of the Madden-Julian Oscillation ( MJO ) in the Tropical indian Ocean ( TIO ) are examined in a heat-conserving ocean state estimate for years 1993-2011. We introduce a raw metric function for representing spatial unevenness of the relative importance of processes. In general, horizontal advection is most important at the Equator. Subsurface processes and surface estrus flux are more important away from the Equator, with surface heat liquefy being the more prevailing factor. Analyses at keystone sites are discussed in the context of local dynamics and literature. At 0°, 80.5°E, for MLT events > 2 standard deviations, ocean dynamics account for more than two thirds of the final leaning during cooling and warming phases. zonal advection alone accounts for ∼40 % of the net tendency. centrist events ( 1-2 standard deviations ) show more differences between events, and some are dominated by surface hotness flux. At 8°S, 67°E in the Seychelles-Chagos Thermocline Ridge ( SCTR ) area, surface heat magnetic field accounts for ∼70 % of the leaning during strong cool and calefacient phases ; subsurface processes linked to ML depth ( MLD ) deepening ( shoaling ) during cooling ( warming ) account for ∼30 %. MLT is more sensitive to subsurface processes in the SCTR, ascribable to the dilute MLD, thin barrier layer and raised thermocline. Results for 8°S, 67°E hold assertions by Vialard et aluminum. ( 2008 ) not previously confirmed due to measurement error that prevented budget closure and the small number of events studied. The roles of MLD, barrier layer thickness, and thermocline depth on different timescales are examined. Keywords: 4223 Descriptive and regional oceanography, 4231 Equatorial oceanography, 4260 Ocean data acculturation and reanalysis, 4504 Air/sea interactions, 4572 Upper ocean and assorted layer processes, ECCO, indian Ocean, MJO, intraseasonal, mixed-layer, temperature budget ECCO Products Used: ECCO-KFS ; ECCO2URL: http://dx.doi.org/10.1002/2014JC010139 Other URLs:
Ott, Lesley E; Pawson, Steven; Collatz, George J; Gregg, Watson W; Menemenlis, Dimitris; Brix, Holger; Rousseaux, Cecile S; Bowman, Kevin W.; Liu, Junjie; Eldering, Annmarie; Gunson, Michael R; Kawa, Stephan R (2015). Assessing the magnitude of CO2 flux uncertainty in atmospheric CO2 records using products from NASA’s Carbon Monitoring Flux Pilot Project, Journal of Geophysical Research: Atmospheres, 2 (120), 734-765, 10.1002/2014JD022411. Title: Assessing the magnitude of CO2 flux density uncertainty in atmospheric CO2 records using products from NASA ’ s Carbon Monitoring Flux Pilot Project Type: Journal article Publication: Journal of Geophysical Research : Atmospheres Author(s): Ott, Lesley E ; Pawson, Steven ; Collatz, George J ; Gregg, Watson W ; Menemenlis, Dimitris ; Brix, Holger ; Rousseaux, Cecile S ; Bowman, Kevin W. ; Liu, Junjie ; Eldering, Annmarie ; Gunson, Michael R ; Kawa, Stephan R Year: 2015 Formatted Citation: Ott, L. E. and Coauthors, 2015 : Assessing the magnitude of CO2 flux doubt in atmospheric CO2 records using products from NASA ‘s Carbon Monitoring Flux Pilot Project. Journal of Geophysical Research : Atmospheres, 120 ( 2 ), 734-765, doi:10.1002/2014JD022411 Abstract: NASA ‘s Carbon Monitoring System Flux Pilot Project ( FPP ) was designed to better sympathize contemporary carbon fluxes by bringing together state-of-the art models with distant sensing data sets. here we report on simulations using NASA ‘s Goddard Earth Observing System Model, interpretation 5 ( GEOS-5 ) which was used to evaluate the consistency of two different sets of observationally informed kingdom and ocean fluxes with atmospheric CO2 records. Despite the observation inputs, the average remainder in annual tellurian biosphere flow between the two land ( NASA Ames Carnegie-Ames-Stanford-Approach ( CASA ) and CASA-Global Fire Emissions Database adaptation 3 ( GFED ) ) models is 1.7 Pg C for 2009-2010. Ocean models ( NASA ‘s Ocean Biogeochemical Model ( NOBM ) and Estimating the Circulation and Climate of the Ocean Phase II ( ECCO2 ) -Darwin ) differ by 35 % in their ball-shaped estimates of carbon paper flux with particularly strong disagreement in senior high school latitudes. Based upon combinations of tellurian and ocean fluxes, GEOS-5 reasonably simulated the seasonal bicycle observed at Northern Hemisphere surface sites and by the Greenhouse gases Observing SATellite ( GOSAT ) while the model struggled to simulate the seasonal worker cycle at Southern Hemisphere come on locations. Though GEOS-5 was able to reasonably reproduce the patterns of XCO2 observed by GOSAT, it struggled to reproduce these aspects of Atmospheric Infrared Sounder observations. Despite bombastic differences between nation and ocean liquefy estimates, resulting differences in atmospheric desegregate ratio were little, typically less than 5 ppm at the surface and 3 ppm in the XCO2 column. A statistical analysis based on the variability of observations shows that flux differences of these magnitudes are unmanageable to distinguish from built-in measurement unevenness, regardless of the measurement chopine. Keywords: 0312 Air/sea component fluxes, 0315 Biosphere/atmosphere interactions, 0322 Constituent sources and sinks, CMS, CO2, GOSAT, biosphere, modeling, ocean ECCO Products Used: ECCO2URL: http://dx.doi.org/10.1002/2014JD022411 Other URLs:
Dorman, Jeffrey G. (2015). Modeling Krill in the California Current: A 2005 Case Study, Conserving Biodiversity in a Changing Climate: Linking Science and Management in Conservation, 43-60. Title: Modeling Krill in the California Current : a 2005 Case Study Type: Book section Publication: Conserving Biodiversity in a deepen climate : Linking Science and Management in Conservation Author(s): Dorman, Jeffrey G. Year: 2015 Formatted Citation: Dorman, J. G., 2015 : Modeling Krill in the California Current : angstrom 2005 Case Study. Conserving Biodiversity in a change climate : Linking Science and Management in Conservation, T. L. Root, K. R. Hall, M. P. Herzog, and C. A. Howell, Eds., Univ of California Press, 43-60, hypertext transfer protocol : //www.ucpress.edu/book/9780520286719/biodiversity-in-a-changing-climate Abstract: Keywords: ECCO Products Used: ECCO2URL: https://www.ucpress.edu/book/9780520286719/biodiversity-in-a-changing-climate Other URLs:
Edwards, Christopher A.; Moore, Andrew M.; Hoteit, Ibrahim; Cornuelle, Bruce D. (2015). Regional Ocean Data Assimilation, Annual Review of Marine Science, 1 (7), 21-42, 10.1146/annurev-marine-010814-015821. Title: Regional Ocean Data Assimilation Type: Journal article Publication: Annual Review of Marine Science Author(s): Edwards, Christopher A. ; Moore, Andrew M. ; Hoteit, Ibrahim ; Cornuelle, Bruce D. Year: 2015 Formatted Citation: Edwards, C. A., A. M. Moore, I. Hoteit, and B. D. Cornuelle, 2015 : regional Ocean Data Assimilation. Annual Review of Marine Science, 7 ( 1 ), 21-42, doi:10.1146/annurev-marine-010814-015821 Abstract: Keywords: ECCO Products Used: SOSEURL: http://www.annualreviews.org/doi/10.1146/annurev-marine-010814-015821 Other URLs:
Fukumori, Ichiro; Wang, Ou; Llovel, William; Fenty, Ian; Forget, Gael (2015). A near-uniform fluctuation of ocean bottom pressure and sea level across the deep ocean basins of the Arctic Ocean and the Nordic Seas, Progress in Oceanography (134), 152-172, 10.1016/j.pocean.2015.01.013. Title: A near-uniform fluctuation of ocean bottom coerce and sea level across the deep ocean basins of the Arctic Ocean and the Nordic Seas Type: Journal article Publication: Progress in Oceanography Author(s): Fukumori, Ichiro ; Wang, Ou ; Llovel, William ; Fenty, Ian ; Forget, Gael Year: 2015 Formatted Citation: Fukumori, I., O. Wang, W. Llovel, I. Fenty, and G. Forget, 2015 : A near-uniform variation of ocean bottom imperativeness and sea degree across the deep ocean basins of the Arctic Ocean and the Nordic Seas. progress in Oceanography, 134, 152-172, doi:10.1016/j.pocean.2015.01.013 Abstract: Across the Arctic Ocean and the Nordic Seas, a basin-wide mood of ocean bottom pressure and sea flush fluctuation is identified using satellite and in situ observations in junction with a ball-shaped ocean circulation model and its adjoint. The variation extends across the interconnected deep ocean basins of these semi-enclosed Arctic seas, jointly called the Arctic Mediterranean, with spatially near-uniform amplitude and phase. The basin-wide fluctuation is barotropic and dominates the region ‘s large-scale variability from sub-monthly to interannual timescales. The variation results from bifurcating coastally trapped waves generated by winds along the continental slopes of the Arctic Mediterranean and its neighbor seas, including the North Atlantic Ocean. The winds drive Ekman transportation across the bombastic bathymetric gradients, forcing mass divergence between the shallow coastal area and the deep ocean basins and creating ocean bottom pressure anomalies of opposite signs in the two regions. The anomalies quickly propagate off as barotropic coastally trapped waves with the coast and continental slope as respective boundaries. The waves subsequently bifurcate at the shallow straits connecting the Arctic Mediterranean with the stay of the globe. The straits transmit the shallow anomalies but not the deep variations, thereby inhibiting the anomalies ‘ reciprocal cancelation by geographically separating the two. Anomalies that enter the deep Arctic basins equilibrate uniformly across the world characterized by a homogeneous depth-integrated erratic likely vorticity distribution. The electric potential vorticity ‘s steep gradient that borders the basins shields the region from neighboring shallow variations, giving rise to the observed spatially confined fluctuation. Compensating anomalies outside the Arctic adjust similarly across the pillow of the ball but are relatively negligible in amplitude because of the global ocean ‘s larger area relative to that of the deep Arctic Mediterranean. The survey, from a technical perspective, illustrates the utility of a model ‘s adjoint in identifying causal mechanisms underlying a complex arrangement. Keywords: ECCO Products Used: Adjoint ; ECCO-V4URL: http://www.sciencedirect.com/science/article/pii/S0079661115000245 Other URLs: hypertext transfer protocol : //linkinghub.elsevier.com/retrieve/pii/S0079661115000245
Peña-Izquierdo, Jesús; van Sebille, Erik; Pelegrí, Josep L.; Sprintall, Janet; Mason, Evan; Llanillo, Pedro J.; Machín, Francisco (2015). Water mass pathways to the North Atlantic oxygen minimum zone, Journal of Geophysical Research: Oceans, 5 (120), 3350-3372, 10.1002/2014JC010557. Title: Water bulk pathways to the North Atlantic oxygen minimal zone Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Peña-Izquierdo, Jesús ; avant-garde Sebille, Erik ; Pelegrí, Josep L. ; Sprintall, Janet ; Mason, Evan ; Llanillo, Pedro J. ; Machín, Francisco Year: 2015 Formatted Citation: Peña-Izquierdo, J., E. van Sebille, J. L. Pelegrí, J. Sprintall, E. Mason, P. J. Llanillo, and F. Machín, 2015 : Water mass pathways to the North Atlantic oxygen minimal partition. J. Geophys. Res. Ocean., 120 ( 5 ), 3350-3372, doi:10.1002/2014JC010557 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2014JC010557 Other URLs:
Piecuch, Christopher G; Fukumori, Ichiro; Ponte, Rui M; Wang, Ou (2015). Vertical Structure of Ocean Pressure Variations with Application to Satellite-Gravimetric Observations, Journal of Atmospheric and Oceanic Technology, 3 (32), 603-613, 10.1175/JTECH-D-14-00156.1. Title: Vertical structure of Ocean Pressure Variations with Application to Satellite-Gravimetric Observations Type: Journal article Publication: Journal of Atmospheric and Oceanic Technology Author(s): Piecuch, Christopher G ; Fukumori, Ichiro ; Ponte, Rui M ; Wang, Ou Year: 2015 Formatted Citation: Piecuch, C. G., I. Fukumori, R. M. Ponte, and O. Wang, 2015 : vertical structure of Ocean Pressure Variations with Application to Satellite-Gravimetric Observations. Journal of Atmospheric and Oceanic Technology, 32 ( 3 ), 603-613, doi:10.1175/JTECH-D-14-00156.1 Abstract: The nature of ocean bottom pressure unevenness is considered on big spatial scales and long worldly scales. Monthly gridded estimates from the Gravity Recovery and Climate Experiment ( GRACE ) Release-05 and the new version 4 bidecadal ocean state of matter estimate of the Consortium for Estimating the Circulation and Climate of the Ocean ( ECCO ) are used. Estimates of from GRACE and ECCO are by and large in commodity agreement, providing an autonomous measure of the timbre of both products. diagnostic fields from the state calculate are used to compute barotropic ( depth independent ) and baroclinic ( depth dependant ) components. The relative roles of baroclinic and barotropic processes are found to vary with latitude and time scale : variations in at higher latitudes and shorter periods are affected by barotropic processes, whereas fluctuations at lower latitudes and longer periods can be influenced by baroclinic effects, broadly coherent with theoretical scaling arguments. Wind-driven Rossby waves and coupling of baroclinic and barotropic modes ascribable to flow-topography interactions appear to be significant influences on the baroclinic variability. Decadal simulations of monthly unevenness based on strictly barotropic frameworks are expected to be in error by about 30 % on average ( in the tropical ocean and at higher latitudes ). Results have implications for applying GRACE observations to problems such as estimating transports of the Antarctic Circumpolar Current. Keywords: ECCO Products Used: ECCO-V4URL: http://dx.doi.org/10.1175/JTECH-D-14-00156.1 Other URLs:
Muller-Karger, Frank E.; Smith, Joseph P.; Werner, Sandra; Chen, Robert; Roffer, Mitchell; Liu, Yanyun; Muhling, Barbara; Lindo-Atichati, David; Lamkin, John; Cerdeira-Estrada, Sergio; Enfield, David B. (2015). Natural variability of surface oceanographic conditions in the offshore Gulf of Mexico, Progress in Oceanography (134), 54-76, 10.1016/j.pocean.2014.12.007. Title: Natural unevenness of surface oceanographic conditions in the offshore Gulf of Mexico Type: Journal article Publication: Progress in Oceanography Author(s): Muller-Karger, Frank E. ; Smith, Joseph P. ; Werner, Sandra ; Chen, Robert ; Roffer, Mitchell ; Liu, Yanyun ; Muhling, Barbara ; Lindo-Atichati, David ; Lamkin, John ; Cerdeira-Estrada, Sergio ; Enfield, David B. Year: 2015 Formatted Citation: Muller-Karger, F. E. and Coauthors, 2015 : natural variability of surface oceanographic conditions in the offshore Gulf of Mexico. Progress in Oceanography, 134, 54-76, doi:10.1016/j.pocean.2014.12.007 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://linkinghub.elsevier.com/retrieve/pii/S0079661114002171 Other URLs:
Koldunov, A.V.; Koldunov, N.V.; Volkov, Denis L.; Belonenko, T.V. (2015). Applying satellite data for validation of the hydrodynamic model for the Arctic Ocean, Current Problems in Remote Sensing of the Earth from Space, 6 (12), 53-66. Title: Applying satellite data for validation of the hydrodynamic model for the Arctic Ocean Type: Journal article Publication: Current Problems in Remote Sensing of the Earth from Space Author(s): Koldunov, A.V. ; Koldunov, N.V. ; Volkov, Denis L. ; Belonenko, T.V. Year: 2015 Formatted Citation: Koldunov, A., N. Koldunov, D. L. Volkov, and T. Belonenko, 2015 : Applying satellite data for validation of the hydrodynamic model for the Arctic Ocean. Current Problems in Remote Sensing of the Earth from Space, 12 ( 6 ), 53-66 Abstract: The aim of this work is to test the operation of the MITgcm hydrodynamic exemplary setup for the Arctic Ocean which is installed and runs in Resource Center “ Computer Center of the St. Petersburg State University ”. The setup is created in the framework of the ECCO2 project that aims to simulate global high-resolution fields of oceanographic characteristics with linear approximation to oceanographic observations. Satellite data are used to validate several oceanographic features simulated by the model : the ocean methamphetamine extent and concentration, sea grade and sea surface temperature. The mannequin is able to successfully reproduce spatial and temporal role unevenness of sea methamphetamine characteristics and give adequate estimates of seasonal worker unevenness and swerve of the sea ice rink extent in the Arctic Ocean. pretense of sea airfoil stature anomalies associated with mass change is satisfactory for the Arctic Ocean regions located away from the North Pole, peculiarly for the Barents Sea. simulation of sea come on temperature demonstrates dependable results for both interannual unevenness and vogue. Comparison of the satellite- and model-derived data proves that the model reproduces the above mentioned oceanographic features reasonably good. therefore, this model may be used in far studies different scientific and practical problems of the Arctic Ocean. Keywords: ECCO Products Used: ECCO2URL: http://jr.rse.cosmos.ru/article.aspx?id=1441〈=eng Other URLs: hypertext transfer protocol : //elibrary.ru/item.asp ? id=25017456
Zhang, Yanxu; Jacob, Daniel J.; Dutkiewicz, Stephanie; Amos, Helen M.; Long, Michael S.; Sunderland, Elsie M. (2015). Biogeochemical drivers of the fate of riverine mercury discharged to the global and Arctic oceans, Global Biogeochemical Cycles, 6 (29), 854-864, 10.1002/2015GB005124. Title: Biogeochemical drivers of the destiny of riverine mercury discharged to the ball-shaped and arctic oceans Type: Journal article Publication: Global Biogeochemical Cycles Author(s): Zhang, Yanxu ; Jacob, Daniel J. ; Dutkiewicz, Stephanie ; Amos, Helen M. ; Long, Michael S. ; Sunderland, Elsie M. Year: 2015 Formatted Citation: Zhang, Y., D. J. Jacob, S. Dutkiewicz, H. M. Amos, M. S. Long, and E. M. Sunderland, 2015 : Biogeochemical drivers of the destiny of riverine mercury discharged to the global and arctic oceans. Global Biogeochemical Cycles, 29 ( 6 ), 854-864, doi:10.1002/2015GB005124 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2015GB005124 Other URLs:
Piecuch, C G (2015). Bottom-pressure signature of annual baroclinic Rossby waves in the northeast tropical Pacific Ocean, Journal of Geophysical Research-Oceans, 4 (120), 2449-2459, 10.1002/2014jc010667. Title: Bottom-pressure signature of annual baroclinic Rossby waves in the northeastern tropical Pacific Ocean Type: Journal article Publication: Journal of Geophysical Research-Oceans Author(s): Piecuch, C G Year: 2015 Formatted Citation: Piecuch, C. G., 2015 : Bottom-pressure key signature of annual baroclinic Rossby waves in the northeast tropical Pacific Ocean. J. Geophys. Res. Ocean., 120 ( 4 ), 2449-2459, doi:10.1002/2014jc010667 Abstract: The annual bicycle in bottom coerce ( phosphorus ( bel ) ) in the northeast tropical Pacific Ocean ( NTPO ) is studied. Focus is on a zonal section along 12 degrees N between 105 degrees W and 145 degrees W that is characterized by a strong annual cycle in ocean level from satellite altimetry. Estimates of p ( b-complex vitamin ) from the Gravity Recovery and Climate Experiment ( GRACE ), a state of matter appraisal produced by the Estimating the Circulation and Climate of the Ocean ( ECCO ) consortium, and a linear Rossby roll exemplar ( LRWM ) are used. The GRACE NTPO phosphorus ( barn ) annual bicycle shows amplitudes deoxyadenosine monophosphate large as 1 curium water equivalent. The GRACE datum besides evidence westward propagation that is consistent with the behavior of long mode-1 Rossby waves at this latitude, with phase increasing from east to west at a rate of estimate to 0.34 m mho ( -1 ). The ECCO and LRWM p ( barn ) estimates corroborate the impression that GRACE reveals the phosphorus ( b ) signature of annual Rossby waves driven by inside wind stress coil and possibly damped by frictional processes. Results have implications for attempts to constrain ball-shaped ocean mass using a individual steer mooring. Keywords: GRACE, annual motorbike, circulation, currents, eddies, ocean bulk, tropical Pacific, unevenness ECCO Products Used: ECCO-V4 URL: Other URLs:
Chen, Ru; Flierl, Glenn R. (2015). The Contribution of Striations to the Eddy Energy Budget and Mixing: Diagnostic Frameworks and Results in a Quasigeostrophic Barotropic System with Mean Flow, Journal of Physical Oceanography, 8 (45), 2095-2113, 10.1175/JPO-D-14-0199.1. Title: The Contribution of Striations to the Eddy Energy Budget and Mixing : diagnostic Frameworks and Results in a Quasigeostrophic Barotropic System with Mean Flow Type: Journal article Publication: Journal of Physical Oceanography Author(s): Chen, Ru ; Flierl, Glenn R. Year: 2015 Formatted Citation: Chen, R., and G. R. Flierl, 2015 : The Contribution of Striations to the Eddy Energy Budget and Mixing : diagnostic Frameworks and Results in a Quasigeostrophic Barotropic System with Mean Flow. Journal of Physical Oceanography, 45 ( 8 ), 2095-2113, doi:10.1175/JPO-D-14-0199.1 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/10.1175/JPO-D-14-0199.1 Other URLs:
D’Addezio, Joseph M; Subrahmanyam, Bulusu; Nyadjro, Ebenezer S; Murty, V S N (2015). Seasonal Variability of Salinity and Salt Transport in the Northern Indian Ocean, Journal of Physical Oceanography, 7 (45), 1947-1966, 10.1175/JPO-D-14-0210.1. Title: Seasonal Variability of Salinity and Salt Transport in the Northern Indian Ocean Type: Journal article Publication: Journal of Physical Oceanography Author(s): D’Addezio, Joseph M ; Subrahmanyam, Bulusu ; Nyadjro, Ebenezer S ; Murty, V S N Year: 2015 Formatted Citation: D’Addezio, J. M., B. Subrahmanyam, E. S. Nyadjro, and V. S. N. Murty, 2015 : seasonal worker Variability of Salinity and Salt Transport in the Northern Indian Ocean. Journal of Physical Oceanography, 45 ( 7 ), 1947-1966, doi:10.1175/JPO-D-14-0210.1 Abstract: Keywords: ECCO2 ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/10.1175/JPO-D-14-0210.1 Other URLs:
Thomas, Matthew D.; De Boer, Agatha M.; Johnson, Helen L.; Stevens, David P. (2014). Spatial and Temporal Scales of Sverdrup Balance, Journal of Physical Oceanography, 10 (44), 2644-2660, 10.1175/JPO-D-13-0192.1. Title: Spatial and Temporal Scales of Sverdrup Balance Type: Journal article Publication: Journal of Physical Oceanography Author(s): Thomas, Matthew D. ; De Boer, Agatha M. ; Johnson, Helen L. ; Stevens, David P. Year: 2014 Formatted Citation: Thomas, M.D. A.M. De Boer H.L. Johnson, and D.P. Stevens, 2014 : spatial and temporal Scales of Sverdrup Balance, Journal of Physical Oceanography, 44 ( 10 ), 264-2660, department of the interior : 10.1175/JPO-D-13-0192.1 Abstract: Sverdrup balance underlies much of the hypothesis of ocean circulation and provides a potential cock for describing the department of the interior ocean transmit from lone the wind stress. Using both a model country estimate and an eddy-permitting match climate model, this study assesses to what extent and over what spatial and temporal role scales Sverdrup balance wheel describes the meridional conveyance. The authors find that Sverdrup symmetry holds to inaugural orderliness in the inside subtropical ocean when considered at spatial scales greater than approximately 5°. Outside the subtropics, in western boundary currents and at unretentive spatial scales, meaning departures occur due to failures in both the assumptions that there is a degree of no gesture at some depth and that the vorticity equation is linear. Despite the ocean transmit alteration occurring on time scales consistent with the basin-crossing times for Rossby waves, as predicted by theory, Sverdrup balance gives a useful measurement of the subtropical circulation after only a few years. This is because the interannual transport unevenness is small compared to the beggarly transports. The vorticity stimulation to the abstruse ocean by the interaction between deep currents and topography is found to be very bombastic in both models. These deep transports, however, are separated from upper-layer transports that are in Sverdrup libra when considered over large scales. Keywords: ECCO Products Used: ECCO-V3URL: https://journals.ametsoc.org/view/journals/phoc/44/10/jpo-d-13-0192.1.xml Other URLs:
Gürol, S.; Weaver, A.T.; Moore, A.M.; Piacentini, A.; Arango, H.G.; Gratton, S. (2014). B-preconditioned minimization algorithms for variational data assimilation with the dual formulation, Quarterly Journal of the Royal Meteorological Society, 679 (140), 539-556, 10.1002/qj.2150. Title: B-preconditioned minimization algorithm for variational data assimilation with the dual conceptualization Type: Journal article Publication: Quarterly Journal of the Royal Meteorological Society Author(s): Gürol, S. ; Weaver, A.T. ; Moore, A.M. ; Piacentini, A. ; Arango, H.G. ; Gratton, S. Year: 2014 Formatted Citation: Gürol, S., A.T. Weaver, A.M. Moore, A. Piacentini, H.G. Arango, and S. Gratton, 2014 : B-preconditioned minimization algorithm for variational data assimilation with the dual conceptualization, Quarterly Journal of the Royal Meteorological Society, 140 ( 679 ), 539-556, department of the interior : 10.1002/qj.2150 Abstract: Variational datum assimilation problems in meteorology and oceanography require the solution of a regulate nonlinear least-squares problem. practical solution algorithms are based on the incremental ( truncate Gauss–Newton ) approach path, which involves the iterative solution of a succession of linear least-squares ( quadratic minimization ) sub-problems. Each sub-problem can be solved using a cardinal approach, where the minimization is performed in a space spanned by vectors of the size of the model control vector, or a double approach path, where the minimization is performed in a space spanned by vectors of the size of the notice vector. The double conceptualization can be advantageous for two reasons. First, the proportion of the minimization problem with the double formulation does not increase when extra control condition variables are considered, such as those account for model erroneousness in a weak-constraint conceptualization. Second, whenever the dimension of observation space is significantly smaller than that of the model control space, the dual conceptualization can reduce both memory custom and computational cost.

In this article, a new dual-based algorithm called Restricted B-preconditioned Lanczos ( RBLanczos ) is introduced, where B denotes the background-error covariance matrix. RBLanczos is the Lanczos conceptualization of the Restricted B-preconditioned Conjugate Gradient ( RBCG ) method. RBLanczos generates mathematically equivalent iterates to those of RBCG and the represent B-preconditioned Conjugate Gradient and Lanczos algorithms used in the aboriginal access. All these algorithms can be implemented without the need for a square-root factorization of B. RBCG and RBLanczos, equally well as the corresponding aboriginal algorithm, are implemented in two operational ocean data assimilation systems and numeral results are presented. Practical diagnostic formula for monitoring the overlap properties of the minimization are besides presented. Keywords: ECCO Products Used: ECCO-V3URL: https://onlinelibrary.wiley.com/doi/10.1002/qj.2150 Other URLs:
Goebel, Nicole L.; Edwards, Christopher A.; Follows, Michael J.; Zehr, Jonathan P. (2014). Modeled diversity effects on microbial ecosystem functions of primary production, nutrient uptake, and remineralization, Ecology, 1 (95), 153-163, 10.1890/13-0421.1. Title: Modeled diversity effects on microbial ecosystem functions of primary coil production, nutrient uptake, and remineralization Type: Journal article Publication: ecology Author(s): Goebel, Nicole L. ; Edwards, Christopher A. ; Follows, Michael J. ; Zehr, Jonathan P. Year: 2014 Formatted Citation: Goebel, N.L., C.A. Edwards, M.J. Follows, and J.P. Zehr, 2014 : Modeled diversity effects on microbial ecosystem functions of basal production, nutrient uptake, and remineralization, Ecology, 95 ( 1 ), 153-163, department of the interior : 10.1890/13-0421.1 Abstract: Ecosystem-wide primary coil productiveness by and large increases with basal manufacturer diverseness, emphasizing the importance of diversity for ecosystem serve. however, most studies that demonstrate this positive kinship have focused on sublunar and aquatic benthic systems, with little attention to the divers marine oceanic primary producers that play an significant function in regulating global climate. here we show how phytoplankton biodiversity enhances overall marine ecosystem primary productiveness and other ecosystem functions using a self-organizing ecosystem model. Diversity manipulation numeral experiments reveal positive, asymptotically saturating relationships between ecosystem-wide phytoplankton diversity and functions of productivity, food consumption, remineralization, and diverseness metrics used to identify mechanisms shaping these relationships. Increase in productiveness with increasing diverseness improves modeled ecosystem stability and model robustness and leads to productivity rates that exceed expected yields primarily through recess complementarity and facilitative interactions between coexisting phytoplankton types ; the composing of traits in assemblages determines the order of magnitude of complementarity and excerpt effects. While findings based on these aggregate measures of diverseness effects parallel those from the majority of experimental outcomes of tellurian and benthic biodiversity-ecosystem function studies, we combine analyses of community diversity effects and investigations of the underlie interactions among phytoplankton types to demonstrate how an increase in recycle production of non-diatoms through an addition in new production of diatom drives this diversity-ecosystem function answer. We demonstrate the crucial function that facilitation plays in the model marine plankton and how this facilitative interaction could amplify future climate-driven changes in ocean ecosystem productivity. Keywords: ECCO Products Used: ECCO-V3URL: https://esajournals.onlinelibrary.wiley.com/doi/abs/10.1890/13-0421.1 Other URLs:
Soerensen, Anne L.; Mason, Robert P.; Balcom, Prentiss H.; Jacob, Daniel J.; Zhang, Yanxu; Kuss, Joachim; Sunderland, Elsie M. (2014). Elemental Mercury Concentrations and Fluxes in the Tropical Atmosphere and Ocean, Environmental Science & Technology, 19 (48), 11312-11319, 10.1021/es503109p. Title: Elemental Mercury Concentrations and Fluxes in the Tropical Atmosphere and Ocean Type: Journal article Publication: Environmental Science & Technology Author(s): Soerensen, Anne L. ; Mason, Robert P. ; Balcom, Prentiss H. ; Jacob, Daniel J. ; Zhang, Yanxu ; Kuss, Joachim ; Sunderland, Elsie M. Year: 2014 Formatted Citation: Soerensen, A.L., R.P. Mason, P.H. Balcom, D.J. Jacob, Y. Zhang, J. Kuss, and E.M. Sunderland, 2014 : elementary Mercury Concentrations and Fluxes in the Tropical Atmosphere and Ocean, Environmental Science & Technology, 48 ( 19 ), 11312-11319, department of the interior : 10.1021/es503109p Abstract: Air-sea change of elementary mercury ( Hg0 ) is a critical part of the ball-shaped biogeochemical Hg hertz. To better understand variability in atmospheric and oceanic Hg0, we collected high-resolution measurements across large gradients in seawater temperature, brininess, and productivity in the Pacific Ocean ( 20°N-15°S ). We modeled coat ocean Hg inputs and losses using an ocean general circulation exemplar ( MITgcm ) and an atmospheric chemical conveyance model ( GEOS-Chem ). Observed coat seawater Hg0 was much more variable than atmospheric concentrations. Peak seawater Hg0 concentrations ( ~130 frequency modulation ) observed in the Pacific intertropical overlap zone ( ITCZ ) were ~3-fold greater than surrounding areas ( ~50 fermium ). This is like to observations from the Atlantic Ocean. Peak evasion in the northern Pacific ITCZ was four times higher than surrounding regions and located at the overlap of high fart speeds and elevated seawater Hg0. Modeling results show that high gear Hg inputs from enhance precipitation in the ITCZ combined with the shallow ocean mix layer in this region drive elevated seawater Hg0 concentrations. Modeled seawater Hg0 concentrations reproduce observed peaks in the ITCZ of both the Atlantic and Pacific Oceans but underestimate its magnitude, likely due to insufficient deep convective scavenge of oxidized Hg from the upper troposphere. Our results demonstrate the importance of scavenge of reactive mercury in the upper atmosphere driving variability in seawater Hg0 and net Hg inputs to biologically fat regions of the tropical ocean. Keywords: ECCO Products Used: ECCO-V3URL: https://pubs.acs.org/doi/10.1021/es503109p Other URLs:
Jones, Daniel C.; Ito, Takamitsu; Takano, Yohei; Hsu, Wei-Ching (2014). Spatial and seasonal variability of the air-sea equilibration timescale of carbon dioxide, Global Biogeochemical Cycles, 11 (28), 1163-1178, 10.1002/2014GB004813. Title: Spatial and seasonal worker variability of the air-sea equilibration timescale of carbon paper dioxide Type: Journal article Publication: Global Biogeochemical Cycles Author(s): Jones, Daniel C. ; Ito, Takamitsu ; Takano, Yohei ; Hsu, Wei-Ching Year: 2014 Formatted Citation: Jones, D.C., T. Ito, Y. Takano, and W-C. Hsu, 2014 : spatial and seasonal worker variability of the air-sea equilibration timescale of carbon paper dioxide, Global Biogeochemical Cycles, 28 ( 11 ), 1163-1178, department of the interior : Abstract: The exchange of carbon paper dioxide between the ocean and the atmosphere tends to bring waters within the mix layer toward balance by reducing the partial imperativeness gradient across the air-water interface. however, the equilibration process is not instantaneous ; in general, there is a lag between forcing and reply. The timescale of air-sea equilibration depends on several factors involving the astuteness of the blend layer, wind speed, and carbonate chemistry. We use a cortege of experimental data sets to generate climatological and seasonal worker complex maps of the air-sea equilibration timescale. The relaxation timescale exhibits considerable spatial and seasonal variations that are largely set by changes in blend layer depth and wind speed. The final effect is dominated by the assorted layer depth ; the flatulence switch over speed and carbonate chemistry parameters only provide partial derivative compensation. broadly speaking, the adjustment timescale tends to increase with latitude. We compare the observationally derived air-sea gas exchange timescale with a model-derived surface residence fourth dimension and a data-derived horizontal tape drive timescale, which allows us to define two nondimensional metrics of equilibration efficiency. These parameters highlight the tropics, subtropics, and northern North Atlantic as regions of inefficient air-sea equilibration where carbon paper anomalies are relatively likely to persist. The efficiency parameters presented here can serve as simple tools for understanding the large-scale continuity of air-sea disequilibrium of CO2 in both observations and models. Keywords: ECCO Products Used: ECCO-V3URL: https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2014GB004813 Other URLs:
Klocker, Andreas; Abernathey, Ryan (2014). Global Patterns of Mesoscale Eddy Properties and Diffusivities, Journal of Physical Oceanography, 3 (44), 1030-1046, 10.1175/JPO-D-13-0159.1. Title: Global Patterns of Mesoscale Eddy Properties and Diffusivities Type: Journal article Publication: Journal of Physical Oceanography Author(s): Klocker, Andreas ; Abernathey, Ryan Year: 2014 Formatted Citation: Klocker, A., and R. Abernathey, 2014 : Global Patterns of Mesoscale Eddy Properties and Diffusivities. Journal of Physical Oceanography, 44 ( 3 ), 1030-1046, doi:10.1175/JPO-D-13-0159.1 Abstract: Mesoscale eddies play a major function in the transportation of tracers in the ocean. Focusing on a sector in the east Pacific, the authors introduce estimates of eddy diffusivities derived from kinematic tracer simulations using satellite-observed speed fields. meridional diffusivities are diagnosed, and how they are related to eddy properties through the desegregate length formulation of Ferrari and Nikurashin, which accounts for the suppression of diffusivity due to eddy propagation relative to the base stream, is shown. The singularity of this study is that, through systematically varying the zonal-mean flow, a conjectural “ unsuppressed ” diffusivity is diagnosed. At a given latitude, the unsuppressed diffusivity occurs when the zonal-mean run equals the eddy phase speed. This provides an independent calculate of eddy phase propagation, which agrees well with theoretical arguments. It is besides shown that the unsuppressed diffusivity is predicted very well by classical blend duration hypothesis, that is, that it is proportional to the rms eddy speed times the observe eddy size, with a spatially ceaseless mixing efficiency of 0.35. then, the inhibition factor is estimated and it is shown that it besides can be sympathize quantitatively in terms of easily observed mean stream properties. The authors then extrapolate from these sector experiments to the ball-shaped scale, making predictions for the global surface eddy diffusivity. in concert with a omen equation for eddy energizing energy and a theory explaining observed eddy sizes, these concepts could potentially be used in a blockage for eddy diffusivities in coarse-resolution ocean climate models. Keywords: ECCO Products Used: OCCAURL: http://journals.ametsoc.org/doi/10.1175/JPO-D-13-0159.1 Other URLs:
Tulloch, Ross; Ferrari, Raffaele; Jahn, Oliver; Klocker, Andreas; LaCasce, Joseph; Ledwell, James R.; Marshall, John; Messias, Marie-Jose; Speer, Kevin; Watson, Andrew (2014). Direct Estimate of Lateral Eddy Diffusivity Upstream of Drake Passage, Journal of Physical Oceanography, 10 (44), 2593-2616, 10.1175/JPO-D-13-0120.1. Title: direct Estimate of Lateral Eddy Diffusivity Upstream of Drake passage Type: Journal article Publication: Journal of Physical Oceanography Author(s): Tulloch, Ross ; Ferrari, Raffaele ; Jahn, Oliver ; Klocker, Andreas ; LaCasce, Joseph ; Ledwell, James R. ; Marshall, John ; Messias, Marie-Jose ; Speer, Kevin ; Watson, Andrew Year: 2014 Formatted Citation: Tulloch, R. and Coauthors, 2014 : address estimate of Lateral Eddy Diffusivity Upstream of Drake Passage. Journal of Physical Oceanography, 44 ( 10 ), 2593-2616, doi:10.1175/JPO-D-13-0120.1 Abstract: The first direct estimate of the rate at which geostrophic turbulence mixes tracers across the Antarctic Circumpolar Current is presented. The estimate is computed from the spread of a tracer released upstream of Drake Passage as partially of the Diapycnal and Isopycnal Mixing Experiment in the southern Ocean ( DIMES ). The meridional eddy diffusivity, a measuring stick of the rate at which the area of the tracer spreads along an isopycnal across the Antarctic Circumpolar Current, is 710 ± 260 m2 s−1 at 1500-m depth. The estimate is based on an extrapolation of the tracer-based diffusivity using output signal from numeral tracers released in a one-twentieth of a degree model simulation of the circulation and turbulence in the Drake Passage region. The model is shown to reproduce the observe spread rate of the DIMES tracer and suggests that the meridional eddy diffusivity is weak in the upper berth kilometer of the water system column with values below 500 m2 s−1 and peaks at the steering grade, near 2 kilometer, where the eddy phase speed is adequate to the average flow rush. These vertical variations are not captured by ocean models presently used for climate studies, but they significantly affect the ventilation of different body of water masses. Keywords: ECCO Products Used: OCCAURL: http://journals.ametsoc.org/doi/10.1175/JPO-D-13-0120.1 Other URLs:
LaCasce, J. H.; Ferrari, R.; Marshall, J.; Tulloch, R.; Balwada, D.; Speer, K. (2014). Float-Derived Isopycnal Diffusivities in the DIMES Experiment, Journal of Physical Oceanography, 2 (44), 764-780, 10.1175/JPO-D-13-0175.1. Title: Float-Derived Isopycnal Diffusivities in the DIMES Experiment Type: Journal article Publication: Journal of Physical Oceanography Author(s): LaCasce, J. H. ; Ferrari, R. ; Marshall, J. ; Tulloch, R. ; Balwada, D. ; Speer, K. Year: 2014 Formatted Citation: LaCasce, J. H., R. Ferrari, J. Marshall, R. Tulloch, D. Balwada, and K. Speer, 2014 : Float-Derived Isopycnal Diffusivities in the DIMES Experiment. Journal of Physical Oceanography, 44 ( 2 ), 764-780, doi:10.1175/JPO-D-13-0175.1 Abstract: As part of the Diapycnal and Isopycnal Mixing Experiment in the southerly Ocean ( DIMES ), 210 subsurface floats were deployed west of the Drake Passage on two target concentration surfaces. Absolute ( one atom ) diffusivities are calculated for the floats. The concentrate is on the meridional component, which is less affected by the mean shear. The diffusivities are estimated in several ways, including a novel method based on the probability density function of the meridional displacements. This allows the determination of the range of possible lateral pass diffusivities, ampere good as the menstruation over which the spread can be said to be diffusing. The method is applied to the float data and to synthetic trajectories generated with the Massachusetts Institute of Technology General Circulation Model ( MITgcm ). Because of ballasting problems, many of the floats did not remain on their targeted concentration open. however, the air bladder temperature records suggest that most occupied a small scope of densities, so the floats were grouped together for the analysis. The latter focuses on a subset of 109 of the floats, launched near 105°W. The different methods yield a consistent appraisal for the diffusivity of 800 ± 200 m2 s−1. The same calculations were made with model particles deployed on 20 different density surfaces and the result for the particles deployed on the neutral density surface γ = 27.7 surface was the like within the errors. The model was then used to map the variation of the diffusivity in the vertical, near the congress of racial equality of the Antarctic Circumpolar Current ( ACC ). The results suggest mix is intensified at middepths, between 1500 and 2000 meter, reproducible with several previous studies. Keywords: ECCO Products Used: OCCAURL: http://journals.ametsoc.org/doi/10.1175/JPO-D-13-0175.1 Other URLs:
Klocker, Andreas; Marshall, David P. (2014). Advection of baroclinic eddies by depth mean flow, Geophysical Research Letters, 10 (41), 3517-3521, 10.1002/2014GL060001. Title: Advection of baroclinic eddies by depth mean flow Type: Journal article Publication: Geophysical Research Letters Author(s): Klocker, Andreas ; Marshall, David P. Year: 2014 Formatted Citation: Klocker, A., and D. P. Marshall, 2014 : advection of baroclinic eddies by depth bastardly flow. Geophys. Res. Lett., 41 ( 10 ), 3517-3521, doi:10.1002/2014GL060001 Abstract: Keywords: ECCO Products Used: OCCAURL: http://doi.wiley.com/10.1002/2014GL060001 Other URLs:
Piecuch, Christopher G.; Ponte, Rui M. (2014). Annual Cycle in Southern Tropical Indian Ocean Bottom Pressure, Journal of Physical Oceanography, 6 (44), 1605-1613, 10.1175/JPO-D-13-0277.1. Title: Annual Cycle in Southern Tropical Indian Ocean Bottom press Type: Journal article Publication: Journal of Physical Oceanography Author(s): Piecuch, Christopher G. ; Ponte, Rui M. Year: 2014 Formatted Citation: Piecuch, C. G., and R. M. Ponte, 2014 : annual Cycle in Southern Tropical Indian Ocean Bottom Pressure. Journal of Physical Oceanography, 44 ( 6 ), 1605-1613, doi:10.1175/JPO-D-13-0277.1 Abstract: The seasonal worker monsoon drives a moral force answer in the southerly tropical indian Ocean, previously observed in baroclinic Rossby curl signatures in annual sea level and thermocline astuteness anomalies. In this newspaper, monthly mass grids based on Release-05 Gravity Recovery and Climate Experiment ( GRACE ) data are used to study the annual motorbike in southerly tropical indian Ocean bottom blackmail. To interpret the satellite data, a linear mannequin of the ocean ‘s reception to wind forcing-based on the hypothesis of vertical normal modes and comprising baroclinic and barotropic components-is considered. The model is evaluated using stratification from an ocean atlas and winds from an atmospheric reanalysis. good agreement between model and data is found over the southern tropical indian ocean : the model explains 81 % of the annual discrepancy in the data on average between 10° and 25°S. Model solutions suggest that, while the annual baroclinic Rossby wave has a seafloor key signature, the annual cycle in the deep sea broadly involves significant barotropic dynamics, in line to the reception in the amphetamine ocean, which is largely baroclinic. Keywords: ECCO Products Used: OCCAURL: http://journals.ametsoc.org/doi/10.1175/JPO-D-13-0277.1 Other URLs:
Xiao, Xiao; Smith, K. Shafer; Keating, Shane R. (2014). The effect of surface buoyancy gradients on oceanic Rossby wave propagation. Title: The effect of surface buoyancy gradients on oceanic Rossby wave propagation Type: Journal article Publication: Author(s): Xiao, Xiao ; Smith, K. Shafer ; Keating, Shane R. Year: 2014 Formatted Citation: Xiao, X., K. S. Smith, and S. R. Keating, 2014 : The effect of airfoil airiness gradients on oceanic Rossby wave propagation., hypertext transfer protocol : //arxiv.org/abs/1407.8255 Abstract: Motivated by the discrepancy between satellite observations of coherent westward propagating surface features and Rossby wave theory, this newspaper revisits the planetal wave propagation problem, taking into account the effects of lateral pass irrepressibility gradients at the ocean ‘s surface. The standard hypothesis for retentive baroclinic Rossby waves is based on an expansion of the quasigeostrophic stretch operator in convention modes, Φn ( z ) satisfying a Neumann boundary circumstance at the surface, Φ’n ( 0 ) =0. irrepressibility gradients are, by thermal wreathe balance, proportional to the vertical derivative of the streamfunction, frankincense such modes are ineffective to represent omnipresent lateral pass buoyancy gradients in the ocean ‘s assorted level. here, we re-derive the wave propagation problem in terms of an expansion in a recently-developed “ surface-aware ” ( SA ) basis that can account for irrepressibility anomalies at the ocean ‘s surface. The problem is studied in the context of an idealize Charney-like baroclinic wave problem set in an oceanic context, where a surface intend buoyancy gradient interacts with a changeless inside potential vorticity gradient that results from both β and the curvature of the mean shear. The curl frequencies, increase rates and phases are systematically compared to those computed from a two-layer model, a truncate expansion in standard baroclinic modes and to a high-vertical resolution calculation that represents the true solution. The wax solution generally shows faster wave propagation when lateral surface gradients are deliver. furthermore, the wave problem in the SA basis best captures the full solution, even with just a two or three modes. Keywords: ECCO Products Used: OCCAURL: http://arxiv.org/abs/1407.8255 Other URLs:
Wright, Corwin J.; Scott, Robert B.; Ailliot, Pierre; Furnival, Darran (2014). Lee wave generation rates in the deep ocean, Geophysical Research Letters, 7 (41), 2434-2440, 10.1002/2013GL059087. Title: Lee wave generation rates in the thick ocean Type: Journal article Publication: Geophysical Research Letters Author(s): Wright, Corwin J. ; Scott, Robert B. ; Ailliot, Pierre ; Furnival, Darran Year: 2014 Formatted Citation: Wright, C. J., R. B. Scott, P. Ailliot, and D. Furnival, 2014 : Lee wave generation rates in the bass ocean. Geophys. Res. Lett., 41 ( 7 ), 2434-2440, doi:10.1002/2013GL059087 Abstract: Keywords: ECCO Products Used: OCCAURL: http://doi.wiley.com/10.1002/2013GL059087 Other URLs:
Wagman, Benjamin M.; Jackson, Charles S.; Yao, Fengchao; Zedler, Sarah E.; Hoteit, Ibrahim (2014). Metric of the 2-6 day sea-surface temperature response to wind stress in the Tropical Pacific and its sensitivity to the K-Profile Parameterization of vertical mixing, Ocean Modelling (79), 54-64, 10.1016/j.ocemod.2014.04.003. Title: Metric of the 2-6 day sea-surface temperature response to wind try in the Tropical Pacific and its sensitivity to the K-Profile Parameterization of erect mix Type: Journal article Publication: Ocean Modelling Author(s): Wagman, Benjamin M. ; Jackson, Charles S. ; Yao, Fengchao ; Zedler, Sarah E. ; Hoteit, Ibrahim Year: 2014 Formatted Citation: Wagman, B. M., C. S. Jackson, F. Yao, S. E. Zedler, and I. Hoteit, 2014 : Metric of the 2-6day sea-surface temperature response to wind tension in the Tropical Pacific and its sensitivity to the K-Profile Parameterization of vertical blend. Ocean Modelling, 79, 54-64, doi:10.1016/j.ocemod.2014.04.003 Abstract: Keywords: ECCO Products Used: OCCAURL: https://linkinghub.elsevier.com/retrieve/pii/S1463500314000511 Other URLs:
Ponte, R M; Piecuch, C G (2014). Interannual Bottom Pressure Signals in the Australian-Antarctic and Bellingshausen Basins, Journal of Physical Oceanography, 5 (44), 1456-1465, 10.1175/jpo-d-13-0223.1. Title: Interannual Bottom Pressure Signals in the Australian-Antarctic and Bellingshausen Basins Type: Journal article Publication: Journal of Physical Oceanography Author(s): Ponte, R M ; Piecuch, C G Year: 2014 Formatted Citation: Ponte, R. M., and C. G. Piecuch, 2014 : Interannual Bottom coerce Signals in the Australian-Antarctic and Bellingshausen Basins. Journal of Physical Oceanography, 44 ( 5 ), 1456-1465, doi:10.1175/jpo-d-13-0223.1 Abstract: Analyses of large-scale ( > 750 kilometer ) ocean bottom imperativeness p ( bacillus ) fields, derived from the Gravity Recovery and Climate Experiment ( GRACE ) and from an Estimating the Circulation & Climate of the Ocean ( ECCO ) state appraisal, uncover enhanced interannual unevenness, partially connected to the Antarctic Oscillation, in regions of the Australian-Antarctic Basin and the Bellingshausen Basin, with p ( b ) magnitudes comparable to those of ocean floor and good correlation coefficient between the GRACE and ECCO p ( bacillus ) serial. coherent with the theory of Gill and Niiler, the patterns of stronger p ( boron ) variability are partially related to enhanced local wind curl push and weakened gradients in H/f, where H is ocean depth and farad is the Coriolis parameter. Despite weaker H/f gradients, motions against them are sufficiently solid to play a character in balancing the local anesthetic wind input. topographical effects are as or more significant than changes in f. Additionally, and contrary to the dominance of barotropic processes at subannual clock time scales, baroclinic effects are not negligible when balancing wind input signal at periods of a few years. Results highlight the emerging capability to accurately observe and estimate interannual changes in large-scale phosphorus ( b ) over the southern Ocean, with implications for the interpretation of low-frequency variability in sea grade in terms of steric stature and heat capacity. Keywords: Atm/Ocean Structure/ Phenomena, Circulation/ Dynamics, Geographic location/entity, Interannual unevenness, large-scale motions, Ocean dynamics, Oceanic unevenness, Sea level, Southern Ocean, Variability, altimetry, circulation, ball-shaped ocean, graveness, exemplar, share i, resonance, low-lying unevenness, southeast pacific, open ECCO Products Used: ECCO-V4 URL: Other URLs:
Ward, Ben A; Dutkiewicz, Stephanie; Follows, Michael J. (2014). Modelling spatial and temporal patterns in size-structured marine plankton communities: top-down and bottom-up controls, Journal of Plankton Research, 1 (36), 31-47, 10.1093/plankt/fbt097. Title: Modelling spatial and temporal role patterns in size-structured marine plankton communities : top-down and bottom-up controls Type: Journal article Publication: Journal of Plankton Research Author(s): Ward, Ben A ; Dutkiewicz, Stephanie ; Follows, Michael J. Year: 2014 Formatted Citation: Ward, B. A., S. Dutkiewicz, and M. J. Follows, 2014 : Modelling spatial and temporal patterns in size-structured marine plankton communities : top-down and bottom-up controls. Journal of Plankton Research, 36 ( 1 ), 31-47, doi:10.1093/plankt/fbt097 Abstract: Idealized equilibrium models have attributed the note size social organization of marine communities to the interactions between alimentary and grazing control. here, we examine this hypothesis in a more naturalistic context using a size-structured ball-shaped ocean food-web model, together with a much simplified interpretation of the same model for which equilibrium solutions are promptly obtained. Both models include the like basic assumptions : allometric scaling of physiological traits and size-selective zooplankton graze. According to the chemical equilibrium model, grazing places a limit on the phytoplankton biomass within each size-class, while the supply rate of substantive nutrients limits the number of coexisting size classes, and therefore the total biomass, in the system. The ball-shaped model remains highly consistent with this conceptual view in the large-scale, annual modal sense, but reveals more building complex behavior at shorter timescales, when phytoplankton and zooplankton increase may become decouple. In finical, we show temporal and spatial scale addiction between entire phytoplankton biomass and two winder ecosystem properties : the zooplankton-to-phytoplankton proportion, and the breakdown of biomass among different size classes. Keywords: ECCO Products Used: ECCO-V2URL: http://plankt.oxfordjournals.org/content/36/1/31.abstract Other URLs: hypertext transfer protocol : //academic.oup.com/plankt/article/36/1/31/1527116/Modelling-spatial-and-temporal-patterns-in
Pemberton, Per (2014). Freshwater processes and water mass transformation in the Arctic Ocean. Title: Freshwater processes and urine aggregate transformation in the Arctic Ocean Type: dissertation Publication: Author(s): Pemberton, Per Year: 2014 Formatted Citation: Pemberton, P., 2014 : fresh water processes and water bulk transformation in the Arctic Ocean., 54 pp. hypertext transfer protocol : //www.diva-portal.org/smash/record.jsf ? pid=diva2 % 3A751037. Abstract: This dissertation explores freshwater-related processes and water mass transforma- tion in the Arctic Ocean. Knowledge of these processes is important from both a local and a global position. globally, because the export of coldness and low saline urine and sea ice might influence the North Atlantic and global merid- ional revoke circulation. locally, because fresh water processes affect the vertical stratification and allow favorable conditions for the methamphetamine cover. Models of different complexity are the main tools of the give work. A contribution of the material considers how these models can be used to examine the key processes governing fresh water balance wheel. additionally, the fresh water budgets amongst 10 different ocean general circulation models ( OGCMs ) are compared and robust features and weaknesses identified. A bombastic part considers the fresh water processes governing the stratifica- tion with an emphasis on the low saline upper parts. The interactions between fresh water sources and sinks are studied in an OGCM using passive tracers. It is found that the composition, pathways and shelf-basin rally of low saline water system primarily involve processes linked to Siberian runoff, Pacific wa- ter and sea-ice dissolve and formation. Motivated by note changes and paleorecords the sensitivity of the stratification is far explored in fresh- body of water perturbation experiments with an OGCM. The response yields a deeper halocline for decreasing fresh water stimulation, in credit line with a theoretical model. The final contribution focuses on a new framework for analyzing water system mass trans- formations. In the model bulk, heat and salt budgets are computed in salinity-temperature space. Using different OGCMs it is shown how surface and interior processes transform inflowing waters towards cold and fresh waters and how the halocline renewal rate can be estimated. Limiting cases for the body of water mass transformation balance are identified by separating contri- butions from surface, inner and boundary fluxes. Keywords: ECCO Products Used: ECCO2URL: http://www.diva-portal.org/smash/record.jsf?pid=diva2%3A751037 Other URLs:
Amol, P; Shankar, D; Fernando, V; Mukherjee, A; Aparna, S G; Fernandes, R; Michael, G S; Khalap, S T; Satelkar, N P; Agarvadekar, Y; Gaonkar, M G; Tari, A P; Kankonkar, A; Vernekar, S P (2014). Observed intraseasonal and seasonal variability of the West India Coastal Current on the continental slope, Journal of Earth System Science, 5 (123), 1045-1074, 10.1007/s12040-014-0449-5. Title: Observed intraseasonal and seasonal worker variability of the West India Coastal Current on the continental gradient Type: Journal article Publication: Journal of Earth System Science Author(s): Amol, P ; Shankar, D ; Fernando, V ; Mukherjee, A ; Aparna, S G ; Fernandes, R ; Michael, G S ; Khalap, S T ; Satelkar, N P ; Agarvadekar, Y ; Gaonkar, M G ; Tari, A P ; Kankonkar, A ; Vernekar, S P Year: 2014 Formatted Citation: Amol, P. and Coauthors, 2014 : Observed intraseasonal and seasonal worker unevenness of the West India Coastal Current on the continental slope. Journal of Earth System Science, 123 ( 5 ), 1045-1074, doi:10.1007/s12040-014-0449-5 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://link.springer.com/10.1007/s12040-014-0449-5 Other URLs:
Danabasoglu, G; Curry, R; Heimbach, P; Kushnir, Y; Meinen, C; Msadek, R; Patterson, M; Thompson, L; Yeager, S; Zhang, R; Office, U S CLIVAR (2014). 2013 US AMOC Science Team Annual Report on Progress and Priorities. Title: 2013 US AMOC Science Team Annual Report on Progress and Priorities Type: Report Publication: Author(s): Danabasoglu, G ; Curry, R ; Heimbach, P ; Kushnir, Y ; Meinen, C ; Msadek, R ; Patterson, M ; Thompson, L ; Yeager, S ; Zhang, R ; Office, U S CLIVAR Year: 2014 Formatted Citation: Danabasoglu, G. and Coauthors, 2014 : 2013 US AMOC Science Team Annual Report on Progress and Priorities., Washington D. C., 162 pp. Abstract: Keywords: ECCO Products Used: URL: Other URLs:
Vallina, S.M.; Ward, B.A.; Dutkiewicz, Stephanie; Follows, Michael J. (2014). Maximal feeding with active prey-switching: A kill-the-winner functional response and its effect on global diversity and biogeography, Progress in Oceanography (120), 93-109, 10.1016/j.pocean.2013.08.001. Title: Maximal feeding with active prey-switching : A kill-the-winner functional response and its effect on ball-shaped diverseness and biogeography Type: Journal article Publication: Progress in Oceanography Author(s): Vallina, S.M. ; Ward, B.A. ; Dutkiewicz, Stephanie ; Follows, Michael J. Year: 2014 Formatted Citation: Vallina, S., B. Ward, S. Dutkiewicz, and M. J. Follows, 2014 : maximal feeding with active prey-switching : A kill-the-winner functional reaction and its effect on global diverseness and biogeography. progress in Oceanography, 120, 93-109, doi:10.1016/j.pocean.2013.08.001 Abstract: Predators ‘ switch towards the most abundant prey is a mechanism that stabilizes population dynamics and helps overcome competitive exclusion of species in food web. current formulations of active prey-switching, however, display non-maximal prey in which the predators ‘ total consumption decays exponentially with the issue prey species ( i.e. the diet breadth ) flush though the sum prey biomass stays constant. We analyse three previously published multi-species functional responses which have either active switch or maximal feeding, but not both. We identify the cause of this apparent incompatibility and describe a kill-the-winner conceptualization that combines active switching with maximal feed. active interchange is shown to be a community response in which some predators become preyselective and the formulations with maximal or non-maximal feed are implicitly assuming different food web configurations. ball-shaped simulations using a marine ecosystem model with 64 phytoplankton species belonging to 4 major functional groups show that the species impressiveness and biogeography of phytoplankton are very sensitive to the option of the functional reception for grazing. The phytoplankton biogeography reflects the libra between the competitive abilities for nutrient consumption and the degree of apparent competition which occurs indirectly between species that share a common marauder species. The phytoplankton diverseness importantly increases when active switch is combined with maximal feeding through predator-mediated coexistence. ( C ) 2013 Elsevier Ltd. All rights reserved. Keywords: Ecosystem diverseness, Foodweb stability, Ocean, Zooplankton crop, communities, competitive-exclusion, ecosystem models, cast-iron fertilization, mixed-layer, mold, north-sea, ocean, phytoplankton, marauder, resource contest ECCO Products Used: ECCO-V2URL: https://linkinghub.elsevier.com/retrieve/pii/S0079661113001468 Other URLs:
Azaneu, M; Kerr, R; Mata, M M (2014). Assessment of the representation of Antarctic Bottom Water properties in the ECCO2 reanalysis, Ocean Sci., 6 (10), 923-946, 10.5194/os-10-923-2014. Title: Assessment of the representation of Antarctic Bottom Water properties in the ECCO2 reanalysis Type: Journal article Publication: Ocean Sci. Author(s): Azaneu, M ; Kerr, R ; Mata, M M Year: 2014 Formatted Citation: Azaneu, M., R. Kerr, and M. M. Mata, 2014 : assessment of the representation of Antarctic Bottom Water properties in the ECCO2 reanalysis. Ocean Sci., 10 ( 6 ), 923-946, doi:10.5194/os-10-923-2014 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://www.ocean-sci.net/10/923/2014/ Other URLs:
Goes, Marlos; Wainer, Ilana; Signorelli, Natalia (2014). Investigation of the causes of historical changes in the subsurface salinity minimum of the South Atlantic, Journal of Geophysical Research: Oceans, 9 (119), 5654-5675, 10.1002/2014JC009812. Title: Investigation of the causes of diachronic changes in the subsurface salt minimum of the South Atlantic Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Goes, Marlos ; Wainer, Ilana ; Signorelli, Natalia Year: 2014 Formatted Citation: Goes, M., I. Wainer, and N. Signorelli, 2014 : investigation of the causes of historic changes in the subsurface brininess minimum of the South Atlantic. J. Geophys. Res. Ocean., 119 ( 9 ), 5654-5675, doi:10.1002/2014JC009812 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2014JC009812 Other URLs:
Le Bars, D. M. (2014). Dynamics and estimation of the Agulhas leakage. Title: Dynamics and estimate of the Agulhas escape Type: thesis Publication: Author(s): Le Bars, D. M. Year: 2014 Formatted Citation: Le Bars, D. M., 2014 : Dynamics and estimate of the Agulhas leakage., 101 pp. hypertext transfer protocol : //dspace.library.uu.nl/handle/1874/290255. Abstract: The Agulhas Current is a powerful limit stream that flows southbound on the easterly coast of South Africa. At the southern result of the continental ledge, most of the stream turns back to the amerind Ocean in the Agulhas Return Current, this is called the Agulhas retroflection. In this process some eddies are shed from the current and spread westward in the Atlantic Ocean. The water that originates from the indian Ocean and enters the South Atlantic Ocean is called the Agulhas escape. It is believed that this magnetic field of relatively warm and salty water plays an authoritative character in the Atlantic Meridional Overturning Circulation. In this dissertation the dynamics of the retroflection process is studied. A newly regimen of retroflection is found for highly disruptive flows. In this government the bulk of escape reaches a utmost and stays unaltered while both the wind stress curl up and the Agulhas Current enchant increase. This is found to be due to an increase of the interactions with the northerly outgrowth of the Antarctic Circumpolar Current. The importance of the Indonesian Throughflow, the equatorial flux of water from the Pacific Ocean to the indian Ocean, is besides explored using numeral models. It is shown that it leads to strengthen the escape but does not change the proportion of retroflection. On the way from the Indonesian Through flow to the Agulhas Current an crucial passing is the South East Madagascar Current. Using dynamic topography data from satellite altimetry, dipolar structures are found to form continuously at the southerly tip of Madagascar. The perturbations induced by these structures contributed to the two early retroflections of the Agulhas Current observed over the last 20 years. finally, a method is developed and validated to measure the Agulhas escape volume transport from satellite altimetry data. Keywords: ECCO Products Used: ECCO2URL: https://dspace.library.uu.nl/handle/1874/290255 Other URLs:
Chen, Ru; Flierl, Glenn R.; Wunsch, Carl (2014). A Description of Local and Nonlocal Eddy-Mean Flow Interaction in a Global Eddy-Permitting State Estimate, Journal of Physical Oceanography, 9 (44), 2336-2352, 10.1175/JPO-D-14-0009.1. Title: A Description of Local and Nonlocal Eddy-Mean Flow Interaction in a global Eddy-Permitting State appraisal Type: Journal article Publication: Journal of Physical Oceanography Author(s): Chen, Ru ; Flierl, Glenn R. ; Wunsch, Carl Year: 2014 Formatted Citation: Chen, R., G. R. Flierl, and C. Wunsch, 2014 : A Description of Local and Nonlocal Eddy-Mean Flow Interaction in a global Eddy-Permitting State Estimate. Journal of Physical Oceanography, 44 ( 9 ), 2336-2352, doi:10.1175/JPO-D-14-0009.1 Abstract: The assumption that local baroclinic instability dominates eddy-mean flow interactions is tested on a global scale using a dynamically reproducible eddy-permitting state estimate. Interactions are divided into local and nonlocal. If all the energy released from the mean flow through eddy-mean menstruate interaction is used to support eddy growth in the same region, or if all the energy released from eddies through eddy-mean menstruation interaction is used to feed back to the entail flow in the lapp region, eddy-mean flow interaction is local ; otherwise, it is nonlocal. different regions have unlike characters : in the subtropical region studied in contingent, interactions are dominantly local anesthetic. In the southern Ocean and Kuroshio and Gulf Stream Extension regions, they are chiefly nonlocal. geographic variability of dominant allele eddy-eddy and eddy-mean menstruation processes is a dominant allele factor in understanding ocean energetics. Keywords: Circulation/ Dynamics, Eddies, Energy transport, Phys ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/abs/10.1175/JPO-D-14-0009.1 Other URLs:
Prowe, A E F; Pahlow, M; Dutkiewicz, Stephanie; Oschlies, A (2014). How important is diversity for capturing environmental-change responses in ecosystem models?, Biogeosciences, 12 (11), 3397-3407, 10.5194/bg-11-3397-2014. Title: How authoritative is diverseness for capturing environmental-change responses in ecosystem models ? Type: Journal article Publication: Biogeosciences Author(s): Prowe, A E F ; Pahlow, M ; Dutkiewicz, Stephanie ; Oschlies, A Year: 2014 Formatted Citation: Prowe, A. E. F., M. Pahlow, S. Dutkiewicz, and A. Oschlies, 2014 : How authoritative is diversity for capturing environmental-change responses in ecosystem models ? Biogeosciences, 11 ( 12 ), 3397-3407, doi:10.5194/bg-11-3397-2014 Abstract: Marine ecosystem models used to investigate how global change affects ocean ecosystems and their serve typically exclude oceanic plankton diverseness. Diversity, however, may affect functions such as primary coil production and their sensitivity to environmental changes. hera we use a global ocean ecosystem model that explicitly resolves phytoplankton diverseness by defining subtypes within four phytoplankton functional types ( PFTs ). We investigate the model ‘s ability to capture diversity effects on elementary production under environmental deepen. An idealized scenario with a sudden reduction in upright mix causes diversity and primary-production changes that turn out to be largely independent of the number of coexisting phytoplankton subtypes. The way diverseness is represented in the model provides a small number of niches with respect to alimentary use in accord with the PFTs defined in the exemplary. Increasing the count of phytoplankton subtypes increases the resolution within the niches. Diversity effects such as niche complementarity manoeuver between, but not within PFTs, and are constrained by the diverseness of traits and trade-offs resolved in the exemplary. The act and nature of the niches formulated in the exemplar, for example via trade-offs or different PFTs, frankincense determines the diversity effects on ecosystem functioning captured in ocean ecosystem models. Keywords: ECCO Products Used: ECCO-V2URL: http://www.biogeosciences.net/11/3397/2014/ Other URLs: hypertext transfer protocol : //www.biogeosciences.net/11/3397/2014/, hypertext transfer protocol : //dspace.mit.edu/handle/1721.1/89185 # files-area, hypertext transfer protocol : //hdl.handle.net/1721.1/89185
Porter, David F.; Tinto, Kirsty J.; Boghosian, Alexandra; Cochran, James R.; Bell, Robin E.; Manizade, Serdar S.; Sonntag, John G. (2014). Bathymetric control of tidewater glacier mass loss in northwest Greenland, Earth and Planetary Science Letters (401), 40-46, 10.1016/j.epsl.2014.05.058. Title: Bathymetric control of tidewater glacier aggregate loss in northwestern greenland Type: Journal article Publication: Earth and Planetary Science Letters Author(s): Porter, David F. ; Tinto, Kirsty J. ; Boghosian, Alexandra ; Cochran, James R. ; Bell, Robin E. ; Manizade, Serdar S. ; Sonntag, John G. Year: 2014 Formatted Citation: Porter, D. F., K. J. Tinto, A. Boghosian, J. R. Cochran, R. E. Bell, S. S. Manizade, and J. G. Sonntag, 2014 : Bathymetric control of tidewater glacier mass loss in northwest Greenland. earth and Planetary Science Letters, 401, 40-46, doi:10.1016/j.epsl.2014.05.058 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://linkinghub.elsevier.com/retrieve/pii/S0012821X14003744 Other URLs:
Losch, Martin; Fuchs, Annika; Lemieux, Jean-François; Vanselow, Anna (2014). A parallel Jacobian-free Newton-Krylov solver for a coupled sea ice-ocean model, Journal of Computational Physics (257), 901-911, 10.1016/j.jcp.2013.09.026. Title: A parallel Jacobian-free Newton-Krylov problem solver for a couple sea ice-ocean model Type: Journal article Publication: Journal of Computational Physics Author(s): Losch, Martin ; Fuchs, Annika ; Lemieux, Jean-François ; Vanselow, Anna Year: 2014 Formatted Citation: Losch, M., A. Fuchs, J. Lemieux, and A. Vanselow, 2014 : A latitude Jacobian-free Newton-Krylov problem solver for a coupled ocean ice-ocean model. Journal of Computational Physics, 257, 901-911, doi:10.1016/j.jcp.2013.09.026 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://linkinghub.elsevier.com/retrieve/pii/S0021999113006402 Other URLs:
Nieves, V.; Wang, J.; Willis, J. K. (2014). A conceptual model of ocean freshwater flux derived from sea surface salinity, Geophysical Research Letters, 18 (41), 6452-6458, 10.1002/2014GL061365. Title: A conceptual model of ocean fresh water flux derived from ocean surface salt Type: Journal article Publication: Geophysical Research Letters Author(s): Nieves, V. ; Wang, J. ; Willis, J. K. Year: 2014 Formatted Citation: Nieves, V., J. Wang, and J. K. Willis, 2014 : A conceptual model of ocean fresh water flux density derived from ocean airfoil salt. Geophys. Res. Lett., 41 ( 18 ), 6452-6458, doi:10.1002/2014GL061365 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2014GL061365 Other URLs:
Gwyther, D. E.; Galton-Fenzi, B. K.; Hunter, J. R.; Roberts, J. L. (2014). Simulated melt rates for the Totten and Dalton ice shelves, Ocean Science, 3 (10), 267-279, 10.5194/os-10-267-2014. Title: Simulated melt rates for the Totten and Dalton ice shelves Type: Journal article Publication: Ocean Science Author(s): Gwyther, D. E. ; Galton-Fenzi, B. K. ; Hunter, J. R. ; Roberts, J. L. Year: 2014 Formatted Citation: Gwyther, D. E., B. K. Galton-Fenzi, J. R. Hunter, and J. L. Roberts, 2014 : Simulated dissolve rates for the Totten and Dalton ice rink shelves. Ocean Science, 10 ( 3 ), 267-279, doi:10.5194/os-10-267-2014 Abstract: The Totten Glacier is quickly fall back aggregate. It has been suggested that this mass loss is driven by changes in oceanic coerce ; however, the details of the ice-ocean interaction are obscure. here we present results from an ice rink shelf-ocean model of the region that includes the Totten, Dalton and Moscow University ice shelves, based on the Regional Oceanic Modeling System for the period 1992-2007. Simulated area-averaged basal thaw rates ( net basal mass loss ) for the Totten and Dalton ice shelves are 9.1 thousand internal-combustion engine yr−1 ( 44.5 Gt ice yr−1 ) and 10.1 meter frosting yr−1 ( 46.6 Gt frost yr−1 ), respectively. The thaw of the ice shelves varies strongly on seasonal worker and interannual timescales. Basal melting ( mass loss ) from the Totten ice shelf spans a range of 5.7 thousand ice yr−1 ( 28 Gt ice yr−1 ) on interannual timescales and 3.4 thousand ice rink yr−1 ( 17 Gt methamphetamine yr−1 ) on seasonal worker timescales. This study links basal melt of the Totten and Dalton frosting shelves to ardent water intrusions across the continental shelf break and atmosphere-ocean heat exchange. Totten frost ledge melt is high when the nearby Dalton polynya interannual forte is below average, and vice versa. Melting of the Dalton ice ledge is chiefly controlled by the forte of warm water intrusions across the Dalton rise and into the ice ledge cavity. During periods of strong westward coastal current menstruation, Dalton melt water flows directly under the Totten ice rink ledge further reducing melting. This is the first such model study of this region to provide a valuable model for directing future experimental and modelling efforts. Keywords: ECCO Products Used: ECCO2URL: https://www.ocean-sci.net/10/267/2014/ Other URLs:
Agarwal, Neeraj; Köhl, Armin; Mechoso, Carlos Roberto; Stammer, Detlef (2014). On the Early Response of the Climate System to a Meltwater Input from Greenland, Journal of Climate, 21 (27), 8276-8296, 10.1175/JCLI-D-13-00762.1. Title: On the early response of the Climate System to a Meltwater Input from Greenland Type: Journal article Publication: Journal of Climate Author(s): Agarwal, Neeraj ; Köhl, Armin ; Mechoso, Carlos Roberto ; Stammer, Detlef Year: 2014 Formatted Citation: Agarwal, N., A. Köhl, C. R. Mechoso, and D. Stammer, 2014 : On the early response of the Climate System to a Meltwater Input from Greenland. J. Clim., 27 ( 21 ), 8276-8296, doi:10.1175/JCLI-D-13-00762.1 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: http://journals.ametsoc.org/doi/abs/10.1175/JCLI-D-13-00762.1 Other URLs:
Buckley, Martha W; Ponte, Rui M; Forget, Gaël; Heimbach, Patrick (2014). Low-Frequency SST and Upper-Ocean Heat Content Variability in the North Atlantic, Journal of Climate, 13 (27), 4996-5018, 10.1175/JCLI-D-13-00316.1. Title: Low-Frequency SST and Upper-Ocean Heat Content Variability in the North Atlantic Type: Journal article Publication: Journal of Climate Author(s): Buckley, Martha W ; Ponte, Rui M ; Forget, Gaël ; Heimbach, Patrick Year: 2014 Formatted Citation: Buckley, M. W., R. M. Ponte, G. Forget, and P. Heimbach, 2014 : Low-Frequency SST and Upper-Ocean Heat Content Variability in the North Atlantic. J. Clim., 27 ( 13 ), 4996-5018, doi:10.1175/JCLI-D-13-00316.1 Abstract: Keywords: ECCO Products Used: ECCO-V4URL: http://dx.doi.org/10.1175/JCLI-D-13-00316.1 Other URLs:
Liu, W Timothy; Xie, Xiaosu (2014). Ocean Surface Carbon Dioxide Fugacity Observed from Space. Title: Ocean Surface Carbon Dioxide Fugacity Observed from Space Type: Report Publication: Author(s): Liu, W Timothy ; Xie, Xiaosu Year: 2014 Formatted Citation: Liu, W. T., and X. Xie, 2014 : ocean Surface Carbon Dioxide Fugacity Observed from Space., Pasadena, CA, 1-24 pp. doi:20160009379. Abstract: We have developed and validated a statistical model to estimate the fugacity ( or overtone pressure ) of carbon paper dioxide ( CO 2 ) at sea open ( pCO2sea ) from space-based observations of sea come on temperature ( SST ), chlorophyll, and salt. More than a quarter million in situ measurements coincident with satellite data were compiled to train and validate the model. We have produced and made accessible 9 years ( 2002-2010 ) of the pCO2sea at 0.5 degree resolutions daily over the ball-shaped ocean. The data were used to reveal multi-year and regional unevenness of pCO2sea in relation to ocean parameters. The data besides identify uncertainties in the current JPL Carbon Monitoring System ( CMS ) model-based and bottom-up estimates over the ocean in the subtropical oligotrophic oceans where biological production is not a significant agent in pCO2sea changes. Keywords: ECCO Products Used: ECCO2URL: https://ntrs.nasa.gov/search.jsp?R=20160009379 Other URLs:
Moore, Robert M; Kienast, Markus; Fraser, Michael; Cullen, John J; Deutsch, Curtis; Dutkiewicz, Stephanie; Follows, Michael J.; Somes, Christopher J (2014). Extensive hydrogen supersaturations in the western South Atlantic Ocean suggest substantial underestimation of nitrogen fixation, Journal of Geophysical Research: Oceans, 7 (119), 4340-4350, 10.1002/2014JC010017. Title: Extensive hydrogen supersaturations in the western South Atlantic Ocean suggest significant underestimate of nitrogen fixation Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Moore, Robert M ; Kienast, Markus ; Fraser, Michael ; Cullen, John J ; Deutsch, Curtis ; Dutkiewicz, Stephanie ; Follows, Michael J. ; Somes, Christopher J Year: 2014 Formatted Citation: Moore, R. M., M. Kienast, M. Fraser, J. J. Cullen, C. Deutsch, S. Dutkiewicz, M. J. Follows, and C. J. Somes, 2014 : extensive hydrogen supersaturations in the western South Atlantic Ocean suggest substantial underestimate of nitrogen fixation. J. Geophys. Res. Ocean., 119 ( 7 ), 4340-4350, doi:10.1002/2014JC010017 Abstract: The nitrogen bicycle is fundamental to Earth ‘s biogeochemistry. Yet major uncertainties of quantification remain, particularly regarding the global oceanic nitrogen fixation rate. Hydrogen is produced during nitrogen fixation and will become supersaturated in surface waters if there is web let go of from diazotrophs. Ocean surveys of hydrogen supersaturation frankincense have the electric potential to illustrate the spatial and worldly distribution of nitrogen arrested development and to guide the far more burdensome but quantitative methods for measuring it. here we present the beginning transect of high resolution measurements of hydrogen supersaturations in surface waters along a meridional 10,000 kilometer cruise traverse through the Atlantic. We compare measured saturations with published measurements of nitrogen fixation rates and besides with model-derived values. If the elementary informant of surfeit hydrogen is nitrogen obsession and has a hydrogen secrete ratio similar to Trichodesmium, our hydrogen measurements would point to similar rates of fixation in the North and South Atlantic, approximately reproducible with model fixation rates but not with measured rates, which are lower in the south. potential explanations would include any substantial nitrogen fixation by newly discovered diazotrophs, peculiarly any having a hydrogen secrete ratio similar to or exceeding that of Trichodesmium ; undersampling of nitrogen fixation south of the equator related to excessive concentrate on Trichodesmium ; and methodological shortcomings of nitrogen arrested development techniques that cause a diagonal toward colonial diazotrophs relative to unicellular forms. alternatively, our data are affected by an unknown hydrogen reservoir that is greater in the southerly one-half of the cruise traverse than the northern. Keywords: 4805 Biogeochemical cycles, 4820 Gases, 4845 Nutrients and nutrient cycling, Atlantic Ocean, and modelin, dissolved hydrogen, nitrogen obsession, processes ECCO Products Used: ECCO-V2URL: http://dx.doi.org/10.1002/2014JC010017 Other URLs: hypertext transfer protocol : //doi.wiley.com/10.1002/2014JC010017
Holland, Paul R.; Bruneau, Nicolas; Enright, Clare; Losch, Martin; Kurtz, Nathan T.; Kwok, Ron (2014). Modeled Trends in Antarctic Sea Ice Thickness, Journal of Climate, 10 (27), 3784-3801, 10.1175/JCLI-D-13-00301.1. Title: Modeled Trends in Antarctic Sea Ice Thickness Type: Journal article Publication: Journal of Climate Author(s): Holland, Paul R. ; Bruneau, Nicolas ; Enright, Clare ; Losch, Martin ; Kurtz, Nathan T. ; Kwok, Ron Year: 2014 Formatted Citation: Holland, P. R., N. Bruneau, C. Enright, M. Losch, N. T. Kurtz, and R. Kwok, 2014 : Modeled Trends in Antarctic Sea Ice Thickness. J. Clim., 27 ( 10 ), 3784-3801, doi:10.1175/JCLI-D-13-00301.1 Abstract: Keywords: ECCO Products Used: ECCO2 ; SeaIceURL: http://journals.ametsoc.org/doi/abs/10.1175/JCLI-D-13-00301.1 Other URLs:
Losch, Martin; Strass, Volker; Cisewski, Boris; Klaas, Christine; Bellerby, Richard G J (2014). Ocean state estimation from hydrography and velocity observations during EIFEX with a regional biogeochemical ocean circulation model, Journal of Marine Systems (129), 437-451, 10.1016/j.jmarsys.2013.09.003. Title: Ocean state estimate from hydrography and speed observations during EIFEX with a regional biogeochemical ocean circulation model Type: Journal article Publication: Journal of Marine Systems Author(s): Losch, Martin ; Strass, Volker ; Cisewski, Boris ; Klaas, Christine ; Bellerby, Richard G J Year: 2014 Formatted Citation: Losch, M., V. Strass, B. Cisewski, C. Klaas, and R. G. J. Bellerby, 2014 : ocean state estimate from hydrography and speed observations during EIFEX with a regional biogeochemical ocean circulation model. Journal of Marine Systems, 129, 437-451, doi:10.1016/j.jmarsys.2013.09.003 Abstract: In the European Iron Fertilization Experiment ( EIFEX ), the iron hypothesis was tested by an open ocean perturbation experiment. The success of EIFEX owes to the apply experimental strategy ; namely to use the closed core of a mesoscale eddy for the cast-iron injection. This strategy not alone allowed tracking the phytoplankton bloom within the fertilize patch of mixed-layer body of water, but besides allowed the export of biologically fixed carbon paper to the thick ocean to be quantified. In this portray study, least-squares techniques are used to fit a regional numeric ocean circulation model with four overt boundaries to temperature, brininess, and speed observations collected during EIFEX. By adjusting the open limit values of temperature, salt and speed, an optimize exemplar is obtained that intelligibly improves the simulate eddy and its assorted level compared to a first estimate representation of the cyclonic eddy. A biogeochemical model, coupled to the optimized circulation exemplar, simulates the development of variables such as chlorophyll a and especial organic carbon in close agreement with the observations. The calculate carbon paper export, however, is lower than the estimates obtained from observations without numeric modeling support. Tuning the bury parameterization in the model increases the carbon export at the monetary value of unrealistically senior high school sinking velocities. Repeating the mannequin experiment without adding iron allows more insight into the effects of the iron fertilization. In the exemplar this consequence is about 40 % lower than in previous estimates in the context of EIFEX. The likely causes for these discrepancies are potentially besides high remineralization, inaccurate representation of the bloom-termination in the model, and ambiguity in budget computations and averaging. The discrepancies are discussed and improvements are suggested for the parameterization used in the biogeochemical model components. Keywords: Biogeochemistry, EIFEX, Export fluxes, Iron fertilization, Polar front, Regional mathematical ocean model ECCO Products Used: URL: http://www.sciencedirect.com/science/article/pii/S0924796313001978 Other URLs:
Dushaw, Brian D.; Menemenlis, Dimitris (2014). Antipodal acoustic thermometry: 1960, 2004, Deep Sea Research Part I: Oceanographic Research Papers (86), 1-20, 10.1016/j.dsr.2013.12.008. Title: Antipodal acoustic thermometry : 1960, 2004 Type: Journal article Publication: Deep Sea Research Part I : Oceanographic Research Papers Author(s): Dushaw, Brian D. ; Menemenlis, Dimitris Year: 2014 Formatted Citation: Dushaw, B. D., and D. Menemenlis, 2014 : Antipodal acoustic thermometry : 1960, 2004. Deep Sea Research Part I : Oceanographic Research Papers, 86, 1-20, doi:10.1016/j.dsr.2013.12.008 Abstract: On 21 March 1960, sounds from three 300-lb astuteness charges deployed at 5.5-min intervals off Perth, Australia were recorded by the SOFAR station at Bermuda. The recorded change of location time of these signals, about 13,375 randomness, is a diachronic measure of the ocean temperature averaged across several ocean basins. The 1960 change of location meter measurement has about 3-s preciseness. high-resolution global ocean department of state estimates for 2004 from the “ Estimating the Circulation and Climate of the Ocean, Phase II ” ( ECCO2 ) project were combined with irradiate tracing to determine the paths followed by the acoustic signals. The acoustic paths are refracted geodesics that are slightly deflected by either minor topographical features in the southerly Ocean or the seashore of Brazil. The refractive influences of intense, small-scale oceanographic features, such as Agulhas Rings or eddies in the Antarctic Circumpolar Current, greatly reduce the necessity topographical deflection and cause the acoustic paths to meander in time. The ECCO2 ocean state estimates, which are constrained by model dynamics and available data, were used to compute contemporary locomotion times. Measured and computed arrival finale were in good agreement. Based on recent estimates of warming of the upper ocean, the travel-time change over the past half-century was nominally expected to be about −9 randomness, but little difference between measured ( 1960 ) and computed ( 2004 ) travel times was found. Taking into account uncertainties in the 1960 measurements, the 2004 ocean state estimates, and other approximations, the ocean temperature averaged along the audio channel axis over the antipodal path has warmed at a rate less than about 4.6 m °C yr−1 ( 95 % confidence ). At this time, the estimated uncertainties are comparable in size to the expected warming bespeak, however. Keywords: Acoustic imaging, Antipodal acoustics, Climate change, Ocean modeling ECCO Products Used: ECCO2URL: http://www.sciencedirect.com/science/article/pii/S0967063714000041 Other URLs:
Mukherjee, A; Shankar, D; Fernando, V; Amol, P; Aparna, S G; Fernandes, R; Michael, G S; Khalap, S T; Satelkar, N P; Agarvadekar, Y; Gaonkar, M G; Tari, A P; Kankonkar, A; Vernekar, S (2014). Observed seasonal and intraseasonal variability of the East India Coastal Current on the continental slope, Journal of Earth System Science, 6 (123), 1197-1232, 10.1007/s12040-014-0471-7. Title: Observed seasonal and intraseasonal unevenness of the East India Coastal Current on the continental slope Type: Journal article Publication: Journal of Earth System Science Author(s): Mukherjee, A ; Shankar, D ; Fernando, V ; Amol, P ; Aparna, S G ; Fernandes, R ; Michael, G S ; Khalap, S T ; Satelkar, N P ; Agarvadekar, Y ; Gaonkar, M G ; Tari, A P ; Kankonkar, A ; Vernekar, S Year: 2014 Formatted Citation: Mukherjee, A. and Coauthors, 2014 : Observed seasonal worker and intraseasonal unevenness of the East India Coastal Current on the continental slope. Journal of Earth System Science, 123 ( 6 ), 1197-1232, doi:10.1007/s12040-014-0471-7 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://link.springer.com/10.1007/s12040-014-0471-7 Other URLs:
Hamilton, Stephen G.; Castro de la Guardia, Laura; Derocher, Andrew E.; Sahanatien, Vicki; Tremblay, Bruno; Huard, David (2014). Projected Polar Bear Sea Ice Habitat in the Canadian Arctic Archipelago, PLoS ONE, 11 (9), e113746, 10.1371/journal.pone.0113746. Title: Projected polar Bear Sea Ice Habitat in the Canadian Arctic Archipelago Type: Journal article Publication: PLoS ONE Author(s): Hamilton, Stephen G. ; Castro de la Guardia, Laura ; Derocher, Andrew E. ; Sahanatien, Vicki ; Tremblay, Bruno ; Huard, David Year: 2014 Formatted Citation: Hamilton, S. G., L. Castro de la Guardia, A. E. Derocher, V. Sahanatien, B. Tremblay, and D. Huard, 2014 : Projected arctic Bear Sea Ice Habitat in the Canadian Arctic Archipelago. PLoS ONE, 9 ( 11 ), e113746, doi:10.1371/journal.pone.0113746 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://dx.plos.org/10.1371/journal.pone.0113746 Other URLs:
Dail, Holly; Wunsch, Carl (2014). Dynamical Reconstruction of Upper-Ocean Conditions in the Last Glacial Maximum Atlantic, Journal of Climate, 2 (27), 807-823, 10.1175/JCLI-D-13-00211.1. Title: Dynamical Reconstruction of Upper-Ocean Conditions in the last Glacial Maximum Atlantic Type: Journal article Publication: Journal of Climate Author(s): Dail, Holly ; Wunsch, Carl Year: 2014 Formatted Citation: Dail, H., and C. Wunsch, 2014 : dynamic reconstruction of Upper-Ocean Conditions in the last Glacial Maximum Atlantic. J. Clim., 27 ( 2 ), 807-823, doi:10.1175/JCLI-D-13-00211.1 Abstract: Proxies indicate that the stopping point Glacial Maximum ( LGM ) Atlantic Ocean was marked by increase meridional and zonal near sea open temperature gradients relative to today. Using a least square fit of a full general circulation and sea methamphetamine model to upper-ocean proxy data with assign erroneousness estimates, a seasonally deviate reconstruction is sought of the Atlantic Ocean department of state that is reproducible with both the known dynamics and the data. With reasonable doubt assumptions for the observations and the adjustable ( control ) variables, a reproducible LGM ocean state of matter is found, one not radically different from the modern one. Inferred changes include a strengthening of the east wind and prevailing westerly winds, leading to strengthened subtropical and subpolar gyres, and increased upwelling favorable winds off the coast of Africa, leading to particularly cold SSTs in those regions. Keywords: Atlantic Ocean, Paleoc, Sea come on temperature, Wind ECCO Products Used: URL: http://journals.ametsoc.org/doi/abs/10.1175/JCLI-D-13-00211.1 Other URLs:
Peña-Molino, B; Rintoul, S R; Mazloff, M R (2014). Barotropic and baroclinic contributions to along-stream and across-stream transport in the Antarctic Circumpolar Current, Journal of Geophysical Research: Oceans, 11 (119), 8011-8028, 10.1002/2014JC010020. Title: Barotropic and baroclinic contributions to along-stream and across-stream transport in the Antarctic Circumpolar Current Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Peña-Molino, B ; Rintoul, S R ; Mazloff, M R Year: 2014 Formatted Citation: Peña-Molino, B., S. R. Rintoul, and M. R. Mazloff, 2014 : Barotropic and baroclinic contributions to along-stream and across-stream transport in the Antarctic Circumpolar Current. J. Geophys. Res. Ocean., 119 ( 11 ), 8011-8028, doi:10.1002/2014JC010020 Abstract: The Southern Ocean { \textquoteright } second ability to store and enchant heat and tracers adenine well as to dissipate momentum and energy are closely related to the vertical structure of the Antarctic Circumpolar Current ( ACC ). here the partition between barotropic and baroclinic flow in the time-mean ACC is investigated in a southern Ocean express estimate. The zonal geostrophic transportation is predominantly baroclinic, with at most 25 % of the transportation at any longitude carried by the barotropic component. Following surface streamlines, changes in vertical shear and near-bottom speed are big, and leave in changes in the local anesthetic partition of barotropic/baroclinic vertically integrate tape drive from 10/90 % in the center of the basins, to 50/50 % near building complex topography. The speed at depth is not aligned with the coat speed. This nonequivalent barotropic flow supports significant cross-stream transports. Barotropic and baroclinic mass conveyance across the ACC is, on average, in diametric directions, with the net barotropic cross-stream enchant being poleward and the net baroclinic equatorward. The union partially cancels out, leaving a net geostrophic poleward tape drive across the different fronts between -5 and -20 Sv. temperature is besides transported across the fronts by the nonequivalent barotropic separate of the ACC, with maximum values across the northern ACC fronts equivalent to -0.2 PW. The signal and magnitude of these transports are not medium to the option of stream-coordinate. These cross-stream volume and temperature transports are variable in space, and dependant on the interactions between cryptic flow and bathymetry, thus unmanageable to infer from surface and hydrographic observations alone. Keywords: ACC, Arctic and Antarctic oceanography, Fronts and jets, Ocean data acculturation and reanalysis, Topographic/bathymetric interactions, along-stream, baroclinic, barotropic, currents, enchant ECCO Products Used: SOSEURL: http://dx.doi.org/10.1002/2014JC010020 Other URLs:
Sánchez-Drewes, Laura Marlene (2014). A unified vertical reference system for South America within a global elevation system. Title: A incorporate erect character system for South America within a global acme organization Type: dissertation Publication: Author(s): Sánchez-Drewes, Laura Marlene Year: 2014 Formatted Citation: Sánchez-Drewes, L. M., 2014 : A mix vertical reference point system for South America within a global elevation system., 165 pp. Abstract: The objective of this study is the fusion of the confederacy american english height systems into a ball-shaped vertical reference system satisfying the requirements of mod Geodesy. The comply topics are discussed : a ) definition and realization of a conventional ball-shaped vertical character system ; b ) Review and standardization of the geodetic data referring to the south american english altitude systems ; c ) Strategies for the precise transformation of the local acme datums into the global upright reference system. It is expected that a modern upright mention system supports the combination of forcible and geometric heights with eminent accuracy globally. therefore, two components are considered : a ) A geometric component consisting of ellipsoid heights as coordinates and a charge ellipsoid as the reference come on, and b-complex vitamin ) A physical component comprising geopotential numbers as coordinates and an equipotential surface defined by a conventional W0 respect as the reference surface. The definition of the physical part is based on likely parameters in order to provide reference to any type of forcible heights ( normal, orthometric, and so forth ). The conversion of geopotential numbers into system of measurement heights and the modeling of the address surface ( geoid or quasigeoid decision ) are considered as steps of the realization. Since the approach developed in this survey is based on the combination of geometric and physical parameters, it was necessary to include an inventory of the standards used in the determination of the vertical coordinates. This armory is the basis for the identification and attendant removal of taxonomic errors caused by the application of different models and methods in the generation of the data available for this study. The chief results of this study are : a ) A detail description of the characteristics to be satisfied by the reference stations realising the global vertical reference point system. This description includes the need conventions for the standardization of the vertical coordinates and the calculation of normal equations for the national level networks. These equations are required to integrate the local stature systems into the ball-shaped one. boron ) appraisal of the reference prize W0 following different approaches and applying the latest geodetic models of the Earth\ ‘s come on and gravity battlefield. This routine besides includes a rigorous error propagation analysis to assess the dependability of the W0 estimate. hundred ) observation equations for the decision of the level discrepancies between the local acme datums and the ball-shaped W0. This is performed in three approaches : in the ocean areas around the reference tide gauges ( ocean border on ), at the mention tide gauges ( coastal approach ), and at the reference stations of the geocentric reference organization ( continental set about ). vitamin d ) Vertical datum parameters for the fusion of the south american stature systems into a global upright address arrangement. The accuracy is assessed to be about ±5 curium for those countries with a good coverage of measurements ( Argentina, Brazil-Imbituba, Colombia, Ecuador, Uruguay, and Venezuela ). For those regions with poor data coverage or gamey uncertainties in the data choice ( Brazil-Santana, Bolivia, Peru, and Chile ), the accuracy is estimated to be about ±2 … 3 diabetes mellitus. The prevail level differences are in general incontrovertible, i.e., local upright datums are above the ball-shaped citation degree W0. This and the north-south increase along the Atlantic coast and the south-north increase along the Pacific slide reflect well the behavior of the sea surface topography in these regions. east ) A description of the promote activities to be developed by each state to improve the results of this study. Keywords: ECCO Products Used: ECCO2URL: http://www.qucosa.de/urnnbn/urn:nbn:de:bsz:14-qucosa-162350 Other URLs: hypertext transfer protocol : //nbn-resolving.de/urn : nbn : delaware : bsz:14-qucosa-162350
Tett, S F B; Sherwin, T J; Shravat, A; Browne, O (2014). How Much Has the North Atlantic Ocean Overturning Circulation Changed in the Last 50 Years?, Journal of Climate, 16 (27), 6325-6342, 10.1175/jcli-d-12-00095.1. Title: How much Has the North Atlantic Ocean Overturning Circulation Changed in the final 50 Years ? Type: Journal article Publication: Journal of Climate Author(s): Tett, S F B ; Sherwin, T J ; Shravat, A ; Browne, O Year: 2014 Formatted Citation: Tett, S. F. B., T. J. Sherwin, A. Shravat, and O. Browne, 2014 : How much Has the North Atlantic Ocean Overturning Circulation Changed in the last 50 Years ? J. Clim., 27 ( 16 ), 6325-6342, doi:10.1175/jcli-d-12-00095.1 Abstract: volume transports from six ocean reanalyses are compared with four sets of in situ observations : across the Greenland-Scotland ridge ( GSR ), in the Labrador Sea boundary current, in the deep western boundary current at 43 degrees N, and in the Atlantic meridional overturning circulation ( AMOC ) at 26 degrees N in the North Atlantic. The higher-resolution reanalyses ( on the order of 1/4 degrees X 1/4 degrees ) are better at reproducing the circulation model in the subpolar coil than those with lower resolution ( on the rate of 1 degrees ). childlike Ocean Data Assimilation ( SODA ) and Estimating the Circulation and Climate of the Ocean ( ECCO ) -Jet Propulsion Laboratory ( JPL ) produce transports at 26 degrees N that are close to those observed [ 17 Sv ( 1 Sv equivalent to 10 ( 6 ) megabyte ( 3 ) randomness ( -1 ) ) ]. ECCO, version 2, and SODA produce northbound transports across the GSR ( detect transmit of 8.2 Sv ) that are 22 % and 29 % besides big, respectively. By contrast, the low-resolution reanalyses have transports that are either excessively small [ by 31 % for ECCO-JPL and 49 % for Ocean Reanalysis, organization 3 ( ORA-S3 ) ] or a lot besides big [ Decadal Prediction System ( DePreSys ) ]. SODA had the best simulations of mix level depth and with two coarse grid long-run reanalyses ( DePreSys and ORA-S3 ) is used to examine changes in North Atlantic circulation from 1960 to 2008. Its results suggest that the AMOC increased by approximately 20 % at 26 degrees N while conveyance across the GSR hardly altered. The other ( less reliable ) long-run reanalyses besides had belittled changes across the GSR but changes of +10 % and -20 %, respectively, at 26 degrees N. Thus, it appears that changes in the revoke circulation at 26 degrees N are decoupled from the flow across the GSR. It is recommended that transmit observations should not be assimilated in ocean reanalyses but used for validation rather. Keywords: duct, menstruation, nordic seas, overflow, thermohaline circulation, unevenness, water ECCO Products Used: ECCO-KFS ; ECCO2 URL: Other URLs:
Kenitz, Katarzyna M. (2014). The paradox of the plankton: Investigating the effect of inter-species competition of phytoplankton and its sensitivity to nutrient supply and external forcing. Title: The paradox of the plankton : Investigating the impression of inter-species contest of phytoplankton and its sensitivity to nutrient provision and external wedge Type: dissertation Publication: Author(s): Kenitz, Katarzyna M. Year: 2014 Formatted Citation: Kenitz, K. M., 2014 : The paradox of the plankton : Investigating the effect of inter-species competition of phytoplankton and its sensitivity to nutrient issue and external forcing., 270 pp. hypertext transfer protocol : //core.ac.uk/download/pdf/80771980.pdf. Abstract: Hutchinson ( 1961 ) first posed the paradox of the plankton : Why do then many phytoplankton species coexist while competing for a limited number of resources ? High biodiversity has been explained in terms of the phytoplankton system not reaching an equilibrium state. spatial and temporal variability can be achieved through outwardly imposed forcible unevenness or internally-induced demeanor including periodic oscillations or irregular, chaotic behavior. The research presented in this thesis investigates whether the non-equilibrium, chaotic reaction of the phytoplankton community is a likely consequence within the aquatic ecosystem. The thesis addresses the extent that chaotic behavior remains a robust reply with externally-imposed environmental variability. The sparseness of long-run time-series data and infrequent sampling inhibits the ability to verify whether marine ecosystems exhibit complex behavior. The analysis of the timeseries records of phytoplankton taxonomic group in the English Channel suggests that chaos might occur within diatom and dinoflagellates abundance time series. however, simulations using a chemostat model for phytoplankton and nutrients suggests that prison term series sampled every 1-2 days for more than 5 years are required to confidently distinguish deterministic chaos from noise. The model simulations suggest that the residential district reception depends on the phytoplankton necessity for nutrients and attributed physiologic traits allowing each species to be a stronger rival for a different resource. A wider inter-species specialization increases the likelihood of oscillatory and chaotic responses, with competitive ejection decreasing from 50 % to 20 % of the cases. Higher departures from the Redfield ratio in the elementary constitution of species favour complex community behavior and act to increase biodiversity. Whether chaotic response can be sustained is sensitive to the potency of the diffusing feedback between alimentary add and ambient alimentary concentration that acts to sustain steady-state alimentary concentrations. Including seasonal and stochastic unevenness in the nutrient add reveals that the frequency of chaotic dynamics increases by 20 % and 45 % respectively. In addition, seasonal forcing leads to temporal variability in the potency of the chaotic response, with chaos becoming more prevailing in the summer. In contrast to a well-mixed, homogeneous environment, physical dispersion can stir different phytoplankton communities together, which might act to inhibit chaos, but at the same prison term enhance phytoplankton diverseness. Idealised model simulations are conducted to mimic the small and large scale transportation processes by including 2 or 3 well-mixed boxes. locally generated chaotic reception is sustained if : 1 ) there is a humble rate of exchange with a strong food rival that maintains the contrasts in the community structure ; 2 ) a strong rival is inhibited by a high mortality rate. In addition, if the local community is outcompeted, chaos can be exported through the advection of stronger competitors that parade chaotic fluctuations. This survey highlights the importance of understanding the interactions between ambient nutrients and phytoplankton community. The variability in the nutrient provide and connectivity between ecosystems shape the community response to inter-species rival. Complex behaviour arising from inter-species competition is suggested to have a meaning contribution in driving biodiversity. Future research on assessing the extent of chaos requires extending and analysing the available time-series data obtained from static or isolate marine provinces. Keywords: ECCO Products Used: ECCO2URL: https://core.ac.uk/download/pdf/80771980.pdf Other URLs:
Polkova, Iuliia; Köhl, Armin; Stammer, Detlef (2014). Impact of initialization procedures on the predictive skill of a coupled ocean-atmosphere model, Climate Dynamics, 11-12 (42), 3151-3169, 10.1007/s00382-013-1969-4. Title: Impact of low-level formatting procedures on the predictive skill of a coupled ocean-atmosphere mannequin Type: Journal article Publication: Climate Dynamics Author(s): Polkova, Iuliia ; Köhl, Armin ; Stammer, Detlef Year: 2014 Formatted Citation: Polkova, I., A. Köhl, and D. Stammer, 2014 : impact of low-level formatting procedures on the predictive skill of a copulate ocean-atmosphere model. Climate Dynamics, 42 ( 11-12 ), 3151-3169, doi:10.1007/s00382-013-1969-4 Abstract: amocpeak Keywords: Anomaly low-level formatting, Decadal predictions, Flux correction, Full state low-level formatting ECCO Products Used: GECCO URL: Other URLs:
Kalmikov, Alexander G; Heimbach, Patrick (2014). A Hessian-Based Method for Uncertainty Quantification in Global Ocean State Estimation, Siam Journal on Scientific Computing, 5 (36), S267-S295, 10.1137/130925311. Title: A Hessian-Based Method for Uncertainty Quantification in Global Ocean State Estimation Type: Journal article Publication: Siam Journal on Scientific Computing Author(s): Kalmikov, Alexander G ; Heimbach, Patrick Year: 2014 Formatted Citation: Kalmikov, A. G., and P. Heimbach, 2014 : A Hessian-Based Method for Uncertainty Quantification in Global Ocean State Estimation. Siam Journal on Scientific Computing, 36 ( 5 ), S267-S295, doi:10.1137/130925311 Abstract: Keywords: uncertainty propagation, principal uncertainty patt ECCO Products Used: URL: http://epubs.siam.org/doi/abs/10.1137/130925311 Other URLs:
Gao, S; Qu, T D; Nie, X W (2014). Mixed layer salinity budget in the tropical Pacific Ocean estimated by a global GCM, Journal of Geophysical Research-Oceans, 12 (119), 8255-8270, 10.1002/2014jc010336. Title: Mixed layer salt budget in the tropical Pacific Ocean estimated by a ball-shaped GCM Type: Journal article Publication: Journal of Geophysical Research-Oceans Author(s): Gao, S ; Qu, T D ; Nie, X W Year: 2014 Formatted Citation: Gao, S., T. D. Qu, and X. W. Nie, 2014 : blend layer brininess budget in the tropical Pacific Ocean estimated by a ball-shaped GCM. J. Geophys. Res. Ocean., 119 ( 12 ), 8255-8270, doi:10.1002/2014jc010336 Abstract: The blend layer salt ( MLS ) budget of the tropical Pacific is investigated using results from a model of the Consortium for Estimating the Circulation and Climate of the Ocean ( ECCO ). The results focusing on the westerly Pacific fresh water pool indicate that the long-run average airfoil fresh water flow is well balanced by ocean dynamics, in which the subsurface processes account for the major part. The MLS budget shows significant seasonal and interannual unevenness, as a consequence of interplay among airfoil fresh water flux, advection, mix, and vertical entrainment. On seasonal time scale, both the MLS and mix layer astuteness are largely controlled by surface fresh water flux. The opposite phase between the subsurface processes and the barrier level thickness confirms the significant influence of the barrier layer on vertical mix and entrainment from below. On interannual prison term scale, all the MLS budget terms show meaning ENSO sign, which in become is highly correlated with the salt front and barrier layer thickness in the equatorial Pacific. Keywords: ECCO, ENSO, barrier-layer, circulation model, el-nino, fresh pool, intraseasonal, brininess budget, sea-surface, simulated passive tracer, southerly oscillation, temperature, toga decade, tropical Pacific, variability, warm pool, western equatorial pacific ECCO Products Used: ECCO-KFS URL: Other URLs:
Death, R; Wadham, J L; Monteiro, F; Le Brocq, A M; Tranter, M; Ridgwell, A; Dutkiewicz, Stephanie; Raiswell, R (2014). Antarctic ice sheet fertilises the Southern Ocean, Biogeosciences, 10 (11), 2635-2643, 10.5194/bg-11-2635-2014. Title: Antarctic methamphetamine sheet fertilises the southern Ocean Type: Journal article Publication: Biogeosciences Author(s): Death, R ; Wadham, J L ; Monteiro, F ; Le Brocq, A M ; Tranter, M ; Ridgwell, A ; Dutkiewicz, Stephanie ; Raiswell, R Year: 2014 Formatted Citation: Death, R., J. L. Wadham, F. Monteiro, A. M. Le Brocq, M. Tranter, A. Ridgwell, S. Dutkiewicz, and R. Raiswell, 2014 : south-polar ice sheet fertilises the southern Ocean. Biogeosciences, 11 ( 10 ), 2635-2643, doi:10.5194/bg-11-2635-2014 Abstract: Southern Ocean ( SO ) marine elementary productivity ( PP ) is strongly influenced by the handiness of iron in surface waters, which is thought to exert a meaning control upon atmospheric CO2 concentrations on glacial/interglacial timescales. The zone bordering the antarctic Ice Sheet exhibits high PP and seasonal worker plankton blooms in answer to inner light and variations in iron handiness. The sources of iron exhilarating elevated SO PP are in argue. Established contributors include dust, coastal sediments/upwelling, iceberg and ocean frosting. Subglacial meltwater exported at the ice gross profit is a more recent suggestion, arising from intense iron cycling beneath the ice plane. Icebergs and subglacial meltwater may supply a large come of bioavailable iron to the SO, estimated in this analyze at 0.07-0.2 Tg yr−1. here we apply the MIT global ocean model ( Follows et al., 2007 ) to determine the potential shock of this level of iron export from the internal-combustion engine sheet upon SO PP. The export of iron from the internal-combustion engine sheet raises modelled SO PP by up to 40 %, and provides one plausible explanation for seasonally very high in situ measurements of PP in the near-coastal partition. The impact on SO PP is greatest in coastal regions, which are besides areas of high measured marine PP. These results suggest that the export of Antarctic runoff and iceberg may have an authoritative impact on SO PP and should be included in future biogeochemical model. Keywords: atmospheric iron deposition, bicycle, dissolved iron, ball-shaped ocean, crisphead lettuce, model, phytoplankton, primary productiveness, waters, west ECCO Products Used: ECCO-V2 ; IceSheetURL: https://www.biogeosciences.net/11/2635/2014/ Other URLs:
Williams, Joanne; Hughes, C. W.; Tamisiea, M. E.; Williams, S. D. P. (2014). Weighing the ocean with bottom-pressure sensors: robustness of the ocean mass annual cycle estimate, Ocean Science, 4 (10), 701-718, 10.5194/os-10-701-2014. Title: Weighing the ocean with bottom-pressure sensors : robustness of the ocean mass annual hertz estimate Type: Journal article Publication: Ocean Science Author(s): Williams, Joanne ; Hughes, C. W. ; Tamisiea, M. E. ; Williams, S. D. P. Year: 2014 Formatted Citation: Williams, J., C. W. Hughes, M. E. Tamisiea, and S. D. P. Williams, 2014 : Weighing the ocean with bottom-pressure sensors : robustness of the ocean batch annual cycle estimate. Ocean Science, 10 ( 4 ), 701-718, doi:10.5194/os-10-701-2014 Abstract: We use ocean bottom-pressure measurements from 17 tropical sites to determine the annual cycle of ocean mass. We show that such a calculation is robust, and use three methods to estimate errors in the multitude determination. Our concluding best estimate, using data from the best sites and two ocean models, is that the annual bicycle has an amplitude of 0.85 mbar ( equivalent to 8.4 millimeter of sea grade, or 3100 Gt of water ), with a 95 % casual of lying within the range 0.61-1.17 mbar. The time of the acme in ocean mass is 10 October, with 95 % luck of occurring between 21 September and 25 October. The coincident match of annual ocean mass besides improves the meet of bottom-pressure musical instrument drift. Keywords: ECCO Products Used: ECCO2URL: https://www.ocean-sci.net/10/701/2014/ Other URLs:
Bates, Michael; Tulloch, Ross; Marshall, John; Ferrari, Raffaele (2014). Rationalizing the Spatial Distribution of Mesoscale Eddy Diffusivity in Terms of Mixing Length Theory, Journal of Physical Oceanography, 6 (44), 1523-1540, 10.1175/JPO-D-13-0130.1. Title: Rationalizing the Spatial Distribution of Mesoscale Eddy Diffusivity in Terms of Mixing Length Theory Type: Journal article Publication: Journal of Physical Oceanography Author(s): Bates, Michael ; Tulloch, Ross ; Marshall, John ; Ferrari, Raffaele Year: 2014 Formatted Citation: Bates, M., R. Tulloch, J. Marshall, and R. Ferrari, 2014 : Rationalizing the Spatial Distribution of Mesoscale Eddy Diffusivity in Terms of Mixing Length Theory. Journal of Physical Oceanography, 44 ( 6 ), 1523-1540, doi:10.1175/JPO-D-13-0130.1 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/abs/10.1175/JPO-D-13-0130.1 Other URLs:
Landschützer, Peter; Gruber, N.; Bakker, D. C. E.; Schuster, U. (2014). Recent variability of the global ocean carbon sink, Global Biogeochemical Cycles, 9 (28), 927-949, 10.1002/2014GB004853. Title: Recent unevenness of the ball-shaped ocean carbon sink Type: Journal article Publication: Global Biogeochemical Cycles Author(s): Landschützer, Peter ; Gruber, N. ; Bakker, D. C. E. ; Schuster, U. Year: 2014 Formatted Citation: Landschützer, P., N. Gruber, D. C. E. Bakker, and U. Schuster, 2014 : holocene unevenness of the ball-shaped ocean carbon paper slump. Global Biogeochemical Cycles, 28 ( 9 ), 927-949, doi:10.1002/2014GB004853 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2014GB004853 Other URLs:
Wang, Jinbo; Mazloff, Matthew R; Gille, Sarah T (2014). Pathways of the Agulhas waters poleward of 29S, Journal of Geophysical Research: Oceans, 7 (119), 4234-4250, 10.1002/2014JC010049. Title: Pathways of the Agulhas waters poleward of 29S Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Wang, Jinbo ; Mazloff, Matthew R ; Gille, Sarah T Year: 2014 Formatted Citation: Wang, J., M. R. Mazloff, and S. T. Gille, 2014 : Pathways of the Agulhas waters poleward of 29S. J. Geophys. Res. Ocean., 119 ( 7 ), 4234-4250, doi:10.1002/2014JC010049 Abstract: n/a Keywords: ECCO Products Used: SOSE URL: Other URLs:
Peralta-Ferriz, Cecilia; Morison, James H.; Wallace, John M.; Bonin, Jennifer A.; Zhang, Jinlun (2014). Arctic Ocean Circulation Patterns Revealed by GRACE, Journal of Climate, 4 (27), 1445-1468, 10.1175/JCLI-D-13-00013.1. Title: Arctic Ocean Circulation Patterns Revealed by GRACE Type: Journal article Publication: Journal of Climate Author(s): Peralta-Ferriz, Cecilia ; Morison, James H. ; Wallace, John M. ; Bonin, Jennifer A. ; Zhang, Jinlun Year: 2014 Formatted Citation: Peralta-Ferriz, C., J. H. Morison, J. M. Wallace, J. A. Bonin, and J. Zhang, 2014 : north-polar Ocean Circulation Patterns Revealed by GRACE. J. Clim., 27 ( 4 ), 1445-1468, doi:10.1175/JCLI-D-13-00013.1 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/abs/10.1175/JCLI-D-13-00013.1 Other URLs:
Zhang, Dongxiao; McPhaden, Michael J.; Lee, Tong (2014). Observed interannual variability of zonal currents in the equatorial Indian Ocean thermocline and their relation to Indian Ocean Dipole, Geophysical Research Letters, 22 (41), 7933-7941, 10.1002/2014GL061449. Title: Observed interannual variability of zonal currents in the equatorial indian Ocean thermocline and their sexual intercourse to indian Ocean Dipole Type: Journal article Publication: Geophysical Research Letters Author(s): Zhang, Dongxiao ; McPhaden, Michael J. ; Lee, Tong Year: 2014 Formatted Citation: Zhang, D., M. J. McPhaden, and T. Lee, 2014 : Observed interannual variability of zonal currents in the equatorial amerind Ocean thermocline and their relative to amerind Ocean Dipole. Geophys. Res. Lett., 41 ( 22 ), 7933-7941, doi:10.1002/2014GL061449 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2014GL061449 Other URLs:
Sánchez, L.; Dayoub, N.; Čunderlík, R.; Minarechová, Z.; Mikula, K.; Vatrt, V.; Vojtíšková, M.; Šíma, Z. (2014). W0 Estimates in the Frame of the GGOS Working Group on Vertical Datum Standardisation. Title: W0 Estimates in the Frame of the GGOS Working Group on Vertical Datum Standardisation Type: Book section Publication: Author(s): Sánchez, L. ; Dayoub, N. ; Čunderlík, R. ; Minarechová, Z. ; Mikula, K. ; Vatrt, V. ; Vojtíšková, M. ; Šíma, Z. Year: 2014 Formatted Citation: Sánchez, L., N. Dayoub, R. Čunderlík, Z. Minarechová, K. Mikula, V. Vatrt, M. Vojtíšková, and Z. Šíma, 2014 : W0 Estimates in the Frame of the GGOS Working Group on Vertical Datum Standardisation., 203-210, doi:10.1007/978-3-319-10837-7_26 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://link.springer.com/10.1007/978-3-319-10837-7_26 Other URLs:
Heimbach, P; Straneo, F; Sergienko, O; Hamilton, G; Office, U S CLIVAR Project (2014). International workshop on understanding the response of Greenlands marine-terminating glaciers to oceanic and atmospheric forcing: Challenges to improving observations, process understanding and modeling. Title: International workshop on understanding the reply of Greenlands marine-terminating glaciers to oceanic and atmospheric storm : Challenges to improving observations, summons understanding and modeling Type: Report Publication: Author(s): Heimbach, P ; Straneo, F ; Sergienko, O ; Hamilton, G ; Office, U S CLIVAR Project Year: 2014 Formatted Citation: Heimbach, P., F. Straneo, O. Sergienko, G. Hamilton, and U. S. C. P. Office, 2014 : International workshop on understanding the response of Greenlands marine-terminating glaciers to oceanic and atmospheric force : Challenges to improving observations, action agreement and modeling., Washington D. C., 36 pp. Abstract: Keywords: ECCO Products Used: IceSheet URL: Other URLs:
Yang, Qinghua; Liu, Jiping; Zhang, Zhanhai; Sui, Cuijuan; Xing, Jianyong; Li, Ming; Li, Chunhua; Zhao, Jiechen; Zhang, Lin (2014). Sensitivity of the Arctic sea ice concentration forecasts to different atmospheric forcing: a case study, Acta Oceanologica Sinica, 12 (33), 15-23, 10.1007/s13131-014-0566-7. Title: Sensitivity of the Arctic ocean ice concentration forecasts to different atmospheric impel : a case report Type: Journal article Publication: Acta Oceanologica Sinica Author(s): Yang, Qinghua ; Liu, Jiping ; Zhang, Zhanhai ; Sui, Cuijuan ; Xing, Jianyong ; Li, Ming ; Li, Chunhua ; Zhao, Jiechen ; Zhang, Lin Year: 2014 Formatted Citation: Yang, Q. and Coauthors, 2014 : sensitivity of the Arctic ocean ice concentration forecasts to different atmospheric force : a font survey. Acta Oceanologica Sinica, 33 ( 12 ), 15-23, doi:10.1007/s13131-014-0566-7 Abstract: Keywords: ECCO Products Used: ECCO2 ; SeaICeURL: http://link.springer.com/10.1007/s13131-014-0566-7 Other URLs:
Kwon, Young Oh; Frankignoul, Claude (2014). Mechanisms of multidecadal atlantic meridional overturning circulation variability diagnosed in depth versus density space, Journal of Climate, 24 (27), 9359-9376, 10.1175/JCLI-D-14-00228.1. Title: Mechanisms of multidecadal atlantic meridional overturning circulation unevenness diagnosed in astuteness versus density quad Type: Journal article Publication: Journal of Climate Author(s): Kwon, Young Oh ; Frankignoul, Claude Year: 2014 Formatted Citation: Kwon, Y. O., and C. Frankignoul, 2014 : Mechanisms of multidecadal atlantic meridional overturning circulation unevenness diagnosed in depth versus concentration space. J. Clim., 27 ( 24 ), 9359-9376, doi:10.1175/JCLI-D-14-00228.1 Abstract: The Atlantic meridional overturning circulation ( AMOC ) in the last 250 years of the 700-year-long contemporary control integration of the Community Climate System Model translation 3 with T85 atmospheric resolution exhibits a red noise-like irregular multi-decadal unevenness with a continuity longer than 10 years, which markedly contrasts with the preceding similar to 300 years of very regular and stronger AMOC variability with like to 20 year cyclicity. The crimson noise-like multi-decadal AMOC unevenness is primarily forced by the surface fluxes associated with stochastic changes in the North Atlantic Oscillation ( NAO ) that intensify and shift north the deep convection in the Labrador Sea. however, the perseverance of the AMOC and the associated oceanic anomalies that are directly forced by the NAO storm does not exceed about 5 years. The extra perseverance originates from anomalous horizontal advection and vertical mix, which generate density anomalies on the continental ledge along the easterly limit of the subpolar coil. These anomalies are subsequently advected by the mean boundary stream into the northern part of the Labrador Sea convection region, reinforcing the density changes directly forced by the NAO. As no evidence was found of a gain two-way match with the atmosphere, the multi-decadal AMOC unevenness in the last 250 years of the integration is an ocean-only response to stochastic NAO forcing with a delay positive feedback caused by the changes in the horizontal ocean circulation. Keywords: Climate unevenness, Meridional overturning circulation, Multidecadal unevenness, North Atlantic Ocean, Ocean circulation, Thermocline circulation ECCO Products Used: URL: Other URLs:
Miller, Madeline Diane (2014). The deep ocean density structure at the Last Glacial Maximum: What was it and why?. Title: The deep ocean concentration structure at the last glacial maximum : What was it and why ? Type: thesis Publication: Author(s): Miller, Madeline Diane Year: 2014 Formatted Citation: Miller, M. D., 2014 : The bass ocean concentration structure at the survive frigid maximal : What was it and why ?., 257 pp. hypertext transfer protocol : //core.ac.uk/download/pdf/33749802.pdf. Abstract: The search for reliable proxies of by abstruse ocean temperature and brininess has proved difficult, thereby limiting our ability to understand the coupling of ocean circulation and climate over glacial-interglacial timescales. previous inferences of abstruse ocean temperature and salt from sediment stoma fluid oxygen isotopes and chlorinity indicate that the deep ocean concentration structure at the stopping point Glacial Maximum ( LGM, ∼20,000 years BP ) was set by brininess, and that the concentration contrast between northern and southern sourced deeply waters was markedly greater than in the modern ocean. high density stratification could help explain the punctuate contrast in carbon isotope distribution recorded in the LGM ocean relative to that we observe today, but what made the ocean ‘s density social organization so different at the LGM ? How did it evolve from one submit to another ? Further, given the sparseness of the LGM temperature and brininess data set, what else can we learn by increasing the spatial concentration of proxy records ? We investigate the cause and feasibility of a highly and salt stratified deep ocean at the LGM and we work to increase the amount of data we can glean about the past ocean from stoma fluent profiles of oxygen isotopes and chloride. Using a coupled ocean- sea ice-ice ledge pit model we test whether the deep ocean density social organization at the LGM can be explained by ice-ocean interactions over the Antarctic continental shelves, and show that a large contribution of the LGM salt stratification can be explained through lower ocean temperature. In regulate to extract the utmost information from concentrate fluid profiles of oxygen isotopes and chloride we evaluate respective inverse methods for ill-posed problems and their ability to recover bottom water histories from sediment pore fluid profiles. We demonstrate that Bayesian Markov Chain Monte Carlo parameter estimate techniques enable us to robustly recover the full solution outer space of buttocks water histories, not merely at the LGM, but through the most late deglaciation and the Holocene up to the present. finally, we evaluate a non-destructive pore fluid sampling proficiency, Rhizon samplers, in comparison to traditional squeeze methods and show that despite their promise, Rhizons are improbable to be a thoroughly sample joyride for pore fluid measurements of oxygen isotopes and chloride. Keywords: ECCO Products Used: ECCO2URL: https://core.ac.uk/download/pdf/33749802.pdf Other URLs:
Moholdt, Geir; Padman, Laurie; Fricker, Helen Amanda (2014). Basal mass budget of Ross and Filchner-Ronne ice shelves, Antarctica, derived from Lagrangian analysis of ICESat altimetry, Journal of Geophysical Research: Earth Surface, 11 (119), 2361-2380, 10.1002/2014JF003171. Title: Basal mass budget of Ross and Filchner-Ronne ice shelves, Antarctica, derived from Lagrangian analysis of ICESat altimetry Type: Journal article Publication: Journal of Geophysical Research : earth airfoil Author(s): Moholdt, Geir ; Padman, Laurie ; Fricker, Helen Amanda Year: 2014 Formatted Citation: Moholdt, G., L. Padman, and H. A. Fricker, 2014 : Basal mass budget of Ross and Filchner-Ronne ice shelves, Antarctica, derived from Lagrangian analysis of ICESat altimetry. Journal of Geophysical Research : earth Surface, 119 ( 11 ), 2361-2380, doi:10.1002/2014JF003171 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2014JF003171 Other URLs:
Landschützer, Peter (2014). Variability of the Global Ocean Carbon Sink (1998 through 2011). Title: Variability of the Global Ocean Carbon Sink ( 1998 through 2011 ) Type: thesis Publication: Author(s): Landschützer, Peter Year: 2014 Formatted Citation: Landschützer, P., 2014 : variability of the Global Ocean Carbon Sink ( 1998 through 2011 ). ( April ), 184 pp. hypertext transfer protocol : //ueaeprints.uea.ac.uk/48677/1/2014LandschuetzerPPhD.pdf. Abstract: In this dissertation a newly developed 2-step neural network approach is used to reconstruct basin-wide monthly maps of the sea surface partial pressure of CO 2 ( pCO 2 ) at a resolution of 1 ◦ ×1 ◦ for both the Atlantic Ocean from 1998 through 2007 and the ball-shaped ocean from 1998 through 2011. From those, air-sea CO 2 blend maps are computed using a standard gas exchange parameterization and high-resolution wind speeds. Observations form the basis of the studies conducted in this dissertation. The neural net- ferment estimates benefit from a continuous improvement of the observations, i, the Sur- confront Ocean CO 2 Atlas ( SOCAT ) database. additionally, bottle samples were collected along the UK-Caribbean telephone line to investigate the variability of the sea surface pCO 2 and its drivers. The nervous network derived pCO 2 estimates fit the observe pCO 2 data with a root average straight error ( RMSE ) of about 10 μatm in the Atlantic Ocean from 1998 through 2007 and about 12 μatm in the global ocean from 1998 through 2011, with about no bias in both studies. A check against freelancer pCO 2 datum reveals a larger RMSE, in particular in regions with potent pCO 2 variability and gradients. worldly hateful contemporaneous flux estimates for the Atlantic Ocean ( -0.45±0.15 Pg C yr −1 ) and the global ocean ( -1.54±0.65 Pg C yr −1 ) agree well with late studies. Trends and variabilities within the considered time periods are strongly influenced by climate modes. The ball-shaped results from 1998 through 2011 uncover the strongest unevenness of the air-sea CO 2 fluxes in the Equatorial Pacific ( ±0.12 Pg C yr −1, ±1σ ), chiefly driven by the El Niño Southern Oscillation ( ENSO ) climate mode. Trends towards a strengthen of the Southern Ocean carbon sinkhole ( -0.36±0.07 Pg C yr −1 ten −1 ) from 1998 through 2011 are potentially linked to the holocene weakening of the Southern Annular Mode ( SAM ) index. Keywords: ECCO Products Used: ECCO2URL: https://ueaeprints.uea.ac.uk/48677/1/2014LandschuetzerPPhD.pdf Other URLs:
Clement Kinney, Jaclyn; Maslowski, Wieslaw; Aksenov, Yevgeny; de Cuevas, Beverly; Jakacki, Jaromir; Nguyen, An; Osinski, Robert; Steele, Michael; Woodgate, Rebecca A.; Zhang, Jinlun (2014). On the Flow Through Bering Strait: A Synthesis of Model Results and Observations, The Pacific Arctic Region, 167-198, 10.1007/978-94-017-8863-2_7. Title: On the Flow Through Bering Strait : A synthesis of Model Results and Observations Type: Book part Publication: The Pacific Arctic Region Author(s): Clement Kinney, Jaclyn ; Maslowski, Wieslaw ; Aksenov, Yevgeny ; de Cuevas, Beverly ; Jakacki, Jaromir ; Nguyen, An ; Osinski, Robert ; Steele, Michael ; Woodgate, Rebecca A. ; Zhang, Jinlun Year: 2014 Formatted Citation: Clement Kinney, J. and Coauthors, 2014 : On the Flow Through Bering Strait : A synthesis of Model Results and Observations. The Pacific Arctic Region, Springer Netherlands, 167-198, doi:10.1007/978-94-017-8863-2_7 Abstract: Keywords: ECCO Products Used: ECCO2 ; SeaIceURL: http://link.springer.com/10.1007/978-94-017-8863-2_7 Other URLs:
Dushaw, Brian D. (2014). Acoustic Tomography, Ocean, Encyclopedia of Remote Sensing, 4-11. Title: Acoustic Tomography, Ocean Type: Book section Publication: Encyclopedia of Remote Sensing Author(s): Dushaw, Brian D. Year: 2014 Formatted Citation: Dushaw, B. D., 2014 : acoustic Tomography, Ocean. Encyclopedia of Remote Sensing, E. G. Njoku, Eds., Springer, 4-11 Abstract: Ocean acoustic imaging is a remote control smell technique that employs the transmission of sound over boastfully dis- tances within the ocean to precisely estimate averages of temperature and current. acoustic imaging data usu- ally consist of time-of-flight change of location times of acoustic pulses, which represent natural integrating measures of audio speed and stream along acoustic paths. Variations in sound speed are predominantly caused by variations in temperature. Keywords: Acoustic Thermometry of Ocean, Acoustic thermometry, Climate ( ATOC ), Moving embark imaging, Ocean acous-, Reciprocal imaging, tic imaging ( OAT ) ECCO Products Used: ECCO2URL: http://faculty.washington.edu/dushaw/epubs/Tomography_Ency_Remote_Sense_Springer_2014.pdf Other URLs: hypertext transfer protocol : //doi.org/10.1007/978-0-387-36699-9_211
Chaudhuri, A H; Ponte, R M; Nguyen, A T (2014). A Comparison of Atmospheric Reanalysis Products for the Arctic Ocean and Implications for Uncertainties in Air-Sea Fluxes, Journal of Climate, 14 (27), 5411-5421, 10.1175/jcli-d-13-00424.1. Title: A Comparison of Atmospheric Reanalysis Products for the Arctic Ocean and Implications for Uncertainties in Air-Sea Fluxes Type: Journal article Publication: Journal of Climate Author(s): Chaudhuri, A H ; Ponte, R M ; Nguyen, A T Year: 2014 Formatted Citation: Chaudhuri, A. H., R. M. Ponte, and A. T. Nguyen, 2014 : A Comparison of Atmospheric Reanalysis Products for the Arctic Ocean and Implications for Uncertainties in Air-Sea Fluxes. J. Clim., 27 ( 14 ), 5411-5421, doi:10.1175/jcli-d-13-00424.1 Abstract: The uncertainties related to atmospheric fields in the Arctic Ocean from normally used and recently available reanalysis products are investigated. Fields from the 1 ) ECMWF Interim Re-Analysis ( ERA-Interim ), 2 ) Common Ocean Ice Reference Experiment translation 2 ( CORE2 ), 3 ) japanese 25-yr Reanalysis Project ( SRA-25 ), 4 ) NCEP-NCAR reanalysis, 5 ) NCEP Climate Forecast System Reanalysis ( CFSR ), and 6 ) Modern-Era Retrospective Analysis for Research and Applications ( MERRA ) are evaluated against satellite-derived and in situ observations for zonal and meridional winds, haste, specific humidity, coat vent temperature, and downwelling longwave and shortwave radiation fluxes. Comparison to reference observations shows that for variables such as tune temperature and humidity, all reanalysis products have alike solutions. however, early variables such as winds, precipitation, and radiation show large spreads. The magnitude of uncertainties in all fields is big when compared to the bespeak. Biases in Arctic cloud parameterizations and bode temperature and humidity profiles in reanalyses as discussed in other studies are likely common sources of error that feign come on downwelling radiation, air temperature, humidity, and precipitation. Keywords: circulation, cloud, global haste, models, operation, visualize, radiative fluxes, coat, winds ECCO Products Used: SeaIce URL: Other URLs:
Webber, B G M; Matthews, A J; Heywood, K J; Kaiser, J; Schmidtko, S (2014). Seaglider observations of equatorial Indian Ocean Rossby waves associated with the Madden-Julian Oscillation, Journal of Geophysical Research-Oceans, 6 (119), 3714-3731, 10.1002/2013jc009657. Title: Seaglider observations of equatorial indian Ocean Rossby waves associated with the Madden-Julian oscillation Type: Journal article Publication: Journal of Geophysical Research-Oceans Author(s): Webber, B G M ; Matthews, A J ; Heywood, K J ; Kaiser, J ; Schmidtko, S Year: 2014 Formatted Citation: Webber, B. G. M., A. J. Matthews, K. J. Heywood, J. Kaiser, and S. Schmidtko, 2014 : Seaglider observations of equatorial indian Ocean Rossby waves associated with the Madden-Julian Oscillation. J. Geophys. Res. Ocean., 119 ( 6 ), 3714-3731, doi:10.1002/2013jc009657 Abstract: During the CINDY-DYNAMO field campaign of September 2011-January 2012, a Seaglider was deployed at 80 degrees E and completed 10 north-south sections between 3 and 4 degrees S, measuring temperature, salt, dissolved oxygen concentration, and chlorophyll fluorescence. These high-resolution subsurface observations provide penetration into equatorial ocean Rossby wave activity forced by three Madden-Julian Oscillation ( MJO ) events during this time menstruation. These Rossby waves generate variability in temperature O ( 1 degrees C ), salt O ( 0.2 gram kilogram ( -1 ) ), density O ( 0.2 kilogram thousand ( -3 ) ), and oxygen assiduity O ( 10 mu gram molecule kilogram ( -1 ) ), associated with 10 m upright displacements of the thermocline. The unevenness extends down to 1000 thousand, the greatest depth of the Seaglider observations, highlighting the importance of open forcing for the deep equatorial ocean. The temperature unevenness observed by the Seaglider is greater than that simulated in the ECCO-JPL reanalysis, particularly at depth. There is besides distinguish variability in chlorophyll fluorescence at the surface and at the depth of the chlorophyll maximum. Upwelling from Rossby waves and local wind stress curl leads to an enhance shallow of the chlorophyll maximal by 10-25 thousand in reception to the increased handiness of nutrients and lightly. This influence of the MJO on chief product via equatorial ocean Rossby waves has not previously been recognized. Keywords: el-nino, kelvin waves, mechanism, pacific, period, tropics, variability, wind ECCO Products Used: ECCO-KFS URL: Other URLs:
Vinogradova, N T; Ponte, R M; Fukumori, I; Wang, O (2014). Estimating satellite salinity errors for assimilation of Aquarius and SMOS data into climate models, Journal of Geophysical Research-Oceans, 8 (119), 4732-4744, 10.1002/2014jc009906. Title: Estimating satellite brininess errors for assimilation of Aquarius and SMOS data into climate models Type: Journal article Publication: Journal of Geophysical Research-Oceans Author(s): Vinogradova, N T ; Ponte, R M ; Fukumori, I ; Wang, O Year: 2014 Formatted Citation: Vinogradova, N. T., R. M. Ponte, I. Fukumori, and O. Wang, 2014 : Estimating satellite salt errors for assimilation of Aquarius and SMOS data into climate models. J. Geophys. Res. Ocean., 119 ( 8 ), 4732-4744, doi:10.1002/2014jc009906 Abstract: Constraining dynamic systems with new information from ocean measurements, including observations of sea surface salt ( SSS ) from Aquarius and SMOS, requires careful consideration of data errors that are used to determine the importance of constraints in the optimization. here such errors are derived by comparing satellite SSS observations from Aquarius and SMOS with ocean model output and in situ data. The associated data error discrepancy maps have a complex spatial practice, ranging from less than 0.05 in the open ocean to 1-2 ( units of salt discrepancy ) along the coasts and high latitude regions. Comparing the data-model misfits to the data errors indicates that the Aquarius and SMOS constraints could potentially affect estimated SSS values in respective ocean regions, including most tropical latitudes. In character to the Aquarius error budget, derived errors are less than the sum allotment errors for the Aquarius mission accuracy requirements in broken and midlatitudes, but exceed allocation errors in high latitudes. Keywords: circulation, ocean, performance, sea-surface brininess ECCO Products Used: ECCO-V4 URL: Other URLs:
Blunden, Jessica; Arndt, Derek S. (2014). State of the Climate in 2013, Bulletin of the American Meteorological Society, 7 (95), S1-S279, 10.1175/2014BAMSStateoftheClimate.1. Title: State of the Climate in 2013 Type: Journal article Publication: Bulletin of the american Meteorological society Author(s): Blunden, Jessica ; Arndt, Derek S. Year: 2014 Formatted Citation: Blunden, J., and D. S. Arndt, 2014 : state of the Climate in 2013. Bull. Am. Meteorol. Soc., 95 ( 7 ), S1-S279, doi:10.1175/2014BAMSStateoftheClimate.1 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/abs/10.1175/2014BAMSStateoftheClimate.1 Other URLs:
Blanken, Hauke (2014). Arctic Oil Spills: A Risk Assessment of Transport in Sea Ice and Ocean Surface Waters from Current Exploration Sites. Title: Arctic Oil Spills : A Risk Assessment of Transport in Sea Ice and Ocean Surface Waters from Current Exploration Sites Type: dissertation Publication: Author(s): Blanken, Hauke Year: 2014 Formatted Citation: Blanken, H., 2014 : arctic Oil Spills : A Risk Assessment of Transport in Sea Ice and Ocean Surface Waters from Current Exploration Sites., 147 pp. hypertext transfer protocol : //digitool.library.mcgill.ca/webclient/StreamGate ? folder_id=0 & dvs=1544930911444~777. Abstract: In late years the level of anoint and gas activity in the Arctic Ocean Basin has increased importantly. Permitting and reasonably condom execution of these activities in ice-infested waters require risk assessments that stretch the limits of presently available oil spill trajectory models. Research has suggested that using a coupled atmosphere-ice-ocean model to simulate oil spill trajectories in ice-infested waters could provide higher accuracy than traditionally parameterized models. This study is a first step towards the development of such a model within the model of the MIT general circulation model. Oil spills are simulated by continuous release of passive tracers at ten-spot locations in the Arctic Ocean Basin, and tracked in the ocean and sea methamphetamine for one class starting at the end of the drill season, using classical parameterizations to model oil-ice interaction. Trajectories in sea ice rink are compared to historical sea internal-combustion engine drift data and found to agree sanely well. 31 simulations with differing sets of historic environmental impel are carried out to quantify inter-annual variability. sensitivity to the key parameter, fraction of frost coverage, is found to be low. In general it is concluded that, depending on location, oil spills may be advected up to ∼1,700km over a winter season and ∼3,500km over one class. The furthest advection of spill oil is observed in the Beaufort and Chukchi Seas, Baffin Bay, and East Greenland. Oil spills originating in the Beaufort, Chukchi, and Barents Seas are confirmed to cross international boundaries, and all spills are found to have potentially severe impact on coastlines. Where mobile drift frosting is salute, enchant with ocean frost is more extensive than tape drive with ocean currents. Keywords: ECCO Products Used: ECCO2URL: http://digitool.library.mcgill.ca/webclient/StreamGate?folder_id=0&dvs=1544930911444~777 Other URLs:
Dushaw, Brian D. (2014). Assessing the horizontal refraction of ocean acoustic tomography signals using high-resolution ocean state estimates, The Journal of the Acoustical Society of America, 1 (136), 122-129, 10.1121/1.4881928. Title: Assessing the horizontal refraction of ocean acoustic imaging signals using high-resolution ocean express estimates Type: Journal article Publication: The Journal of the Acoustical Society of America Author(s): Dushaw, Brian D. Year: 2014 Formatted Citation: Dushaw, B. D., 2014 : Assessing the horizontal refraction of ocean acoustic imaging signals using high-resolution ocean state estimates. The Journal of the Acoustical Society of America, 136 ( 1 ), 122-129, doi:10.1121/1.4881928 Abstract: Keywords: acoustic signal process, acoustic imaging, acoustic beckon refraction, submerged voice ECCO Products Used: ECCO2URL: http://scitation.aip.org/content/asa/journal/jasa/136/1/10.1121/1.4881928 Other URLs:
Piecuch, Christopher G; Ponte, Rui M (2014). Mechanisms of Global-Mean Steric Sea Level Change, Journal of Climate, 2 (27), 824-834, 10.1175/JCLI-D-13-00373.1. Title: Mechanisms of Global-Mean Steric Sea Level Change Type: Journal article Publication: Journal of Climate Author(s): Piecuch, Christopher G ; Ponte, Rui M Year: 2014 Formatted Citation: Piecuch, C. G., and R. M. Ponte, 2014 : Mechanisms of Global-Mean Steric Sea Level Change. J. Clim., 27 ( 2 ), 824-834, doi:10.1175/JCLI-D-13-00373.1 Abstract: Global-mean sea degree change partially reflects volumetric expansion of the oceans because of concentration variety, differently known as global-mean steric ocean level exchange. Owing to nonlinearities in the equality of state of seawater, the nature of processes contributing to late observe global-mean steric ocean horizontal surface changes has not been well understand. Using a data-constrained ocean state estimate, global-mean steric sea degree change over 1993-2003 is revisited, and contributions from ocean transports and airfoil exchanges are quantified using close up potential temperature and brininess budgets. Analyses demonstrate that estimated decadal global-mean steric ocean level change results chiefly from a little, time-mean imbalance between atmospheric impel and ocean transports over the integration menstruation : surface hotness and fresh water exchanges produce a tendency in global-mean steric sea level that is chiefly offset by the redistribution of electric potential temperature and brininess through minor diffusion and large-scale advection. A hardening of numerical experiments demonstrates that global-mean steric sea charge changes simulated by ocean general circulation models are sensitive to the regional distribution of ocean hotness and fresh water message changes. Keywords: Advection, Buoyancy, Conservation equations, Ocean curie ECCO Products Used: URL: http://journals.ametsoc.org/doi/abs/10.1175/JCLI-D-13-00373.1 Other URLs:
Mazloff, Matthew R.; Gille, Sarah T.; Cornuelle, Bruce (2014). Improving the geoid: Combining altimetry and mean dynamic topography in the California coastal ocean, Geophysical Research Letters, 24 (41), 8944-8952, 10.1002/2014GL062402. Title: Improving the geoid : Combining altimetry and think of dynamic topography in the California coastal ocean Type: Journal article Publication: Geophysical Research Letters Author(s): Mazloff, Matthew R. ; Gille, Sarah T. ; Cornuelle, Bruce Year: 2014 Formatted Citation: Mazloff, M. R., S. T. Gille, and B. Cornuelle, 2014 : Improving the geoid : Combining altimetry and mean dynamic topography in the California coastal ocean. Geophys. Res. Lett., 41 ( 24 ), 8944-8952, doi:10.1002/2014GL062402 Abstract: Keywords: ECCO Products Used: SOSEURL: http://doi.wiley.com/10.1002/2014GL062402 Other URLs:
Wunsch, Carl; Heimbach, Patrick (2014). Bidecadal Thermal Changes in the Abyssal Ocean, Journal of Physical Oceanography, 8 (44), 2013-2030, 10.1175/JPO-D-13-096.1. Title: Bidecadal Thermal Changes in the Abyssal Ocean Type: Journal article Publication: Journal of Physical Oceanography Author(s): Wunsch, Carl ; Heimbach, Patrick Year: 2014 Formatted Citation: Wunsch, C., and P. Heimbach, 2014 : Bidecadal Thermal Changes in the Abyssal Ocean. Journal of Physical Oceanography, 44 ( 8 ), 2013-2030, doi:10.1175/JPO-D-13-096.1 Abstract: A dynamically coherent state estimate is used for the period 1992-2011 to describe the changes in oceanic temperatures and heat contented, with an vehemence on determining the randomness background in the abyssal ( below 2000 m ) depths. Interpretation requires close attention to the long memory of the deep ocean, implying that meteorologic storm of decades to thousands of years ago should placid be producing trendlike changes in abyssal estrus content. much of the deep-ocean bulk remained unobserved. At the present time, warming is seen in the deep western Atlantic and Southern Oceans, roughly consistent with those regions of the ocean expected to display the earliest responses to surface disturbances. Parts of the deeper ocean, below 3600 thousand, show cooling. Most of the pas seul in the abyssal Pacific Ocean is relatively featureless, coherent with the dense, diffusing approach path to a firm express expected there. In the global average, changes in heat content below 2000 megabyte are roughly 10 % of those inferred for the upper ocean over the 20-yr time period. A useful ball-shaped note scheme for detecting future change has to be designed to account for the different fourth dimension and spatial scales manifested in the observe changes. If the preciseness estimates of heating system content change are autonomous of systematic errors, determining oceanic heat consumption values equivalent to 0.1 W thousand ( -2 ) is possibly attainable over future bidecadal periods. Keywords: argo program, circulation, estimate, ball-shaped ocean, hotness, level rise, north-atlantic ocean, reanalysis, sea-surface temperature, department of state, unevenness ECCO Products Used: ECCO-V4 ; ECCO2URL: http://journals.ametsoc.org/doi/abs/10.1175/JPO-D-13-096.1 Other URLs:
Wortham, C; Wunsch, C (2014). A Multidimensional Spectral Description of Ocean Variability, Journal of Physical Oceanography, 3 (44), 944-966, 10.1175/jpo-d-13-0113.1. Title: A Multidimensional Spectral Description of Ocean Variability Type: Journal article Publication: Journal of Physical Oceanography Author(s): Wortham, C ; Wunsch, C Year: 2014 Formatted Citation: Wortham, C., and C. Wunsch, 2014 : A Multidimensional Spectral Description of Ocean Variability. Journal of Physical Oceanography, 44 ( 3 ), 944-966, doi:10.1175/jpo-d-13-0113.1 Abstract: An update empiric, analytic exemplar for the frequency and wavenumber distribution of balance gesticulate in the ocean is presented. The spectrum model spans periods longer than the inertial but shorter than a ten and wavelengths between 100 and 10 000 kilometer. Assuming geostrophic dynamics, a spectrum exemplary for the streamfunction is constructed to be reproducible with a stove of observations, including ocean surface stature from satellite altimetry, speed from moored and shipboard instruments, and temperature from moorings. First-order characteristics of the respect spectrum, including amplitude and spectral moments, change slowly geographically. The spectrum model is horizontally anisotropic, accommodating observations that zonal wavenumber-frequency spectrum are dominated by a nondispersive line. qualitative and quantitative agreement is found with unidimensional frequency and wavenumber spectrum and detect upright profiles of variance. exemplifying lotion is made of the exemplary spectrum to observing-system design, data map, and uncertainty estimate for trends. Keywords: Altimetry, Circulation, Climatology, Dynamics, Kinetic energy, Mathematical and statistical techniques, Observational techniques and algorithm, Oceanic unevenness, Physical Meteorology and, Rossby waves, apparitional analysis, Variability, baroclinic, circulation, dispersion-relation, distribution, evolution, extratropical planetary-waves, kinetic-energy, intend stream, models, phone number spectrum, quasi-geostrophic theory, rossby waves, uncut, topography ECCO Products Used: ECCO2 URL: Other URLs:
Landschützer, Peter; Gruber, N.; Bakker, D.C.E.; Schuster, U. (2014). An observation-based global monthly gridded sea surface pCO2 product from 1998 through 2011 and its monthly climatology. Title: An observation-based ball-shaped monthly gridded sea surface pCO2 product from 1998 through 2011 and its monthly climatology Type: Report Publication: Author(s): Landschützer, Peter ; Gruber, N. ; Bakker, D.C.E. ; Schuster, U. Year: 2014 Formatted Citation: Landschützer, P., N. Gruber, D. Bakker, and U. Schuster, 2014 : An observation-based ball-shaped monthly gridded sea surface pCO2 merchandise from 1998 through 2011 and its monthly climatology., Oak Ridge, Tennessee, 3 pp. doi:10.3334/CDIAC/OTG.SPCO2_1998_2011_ETH_SOM-FFN. Abstract: Keywords: ECCO Products Used: ECCO2URL: https://cdiac.ess-dive.lbl.gov/ftp/oceans/spco2_1998_2011_ETH_SOM-FFN/Readme_Document.pdf Other URLs: hypertext transfer protocol : //cdiac.ess-dive.lbl.gov/ftp/oceans/spco2_1998_2011_ETH_SOM-FFN
Olhsson, Elizabeth Halley (2014). Capturing the Impact of Riverine Nutrient Delivery on Coastal Ocean Biogeochemistry. Title: Capturing the Impact of Riverine Nutrient Delivery on Coastal Ocean Biogeochemistry Type: dissertation Publication: Author(s): Olhsson, Elizabeth Halley Year: 2014 Formatted Citation: Olhsson, E. H., 2014 : Capturing the Impact of Riverine Nutrient Delivery on Coastal Ocean Biogeochemistry., 168 pp. hypertext transfer protocol : //escholarship.org/uc/item/34k135nq. Abstract: Rivers smaller than the Amazon tend to be excluded from earth system modeling efforts. Does it matter ? Do sub-grid-scale rivers have significant impacts on offshore primary productivity ? Using the Eel River in northerly California, the river with the largest sediment yield per drain area in the continental United States, as a test case, this interview is explored using two approaches. First, a data-driven analysis of relevant time series taken on bring, by buoy, and from outer space, demonstrates very small testify of direct impact of Eel River discharge on contemporaneous coastal ocean primary coil productiveness – but to the extent that that evidence exists, it seems to occur during years of greatest river discharge. To far analyze mechanistic drivers, a copulate mesoscale modeling model unify ocean, watershed and atmospheric representations is formulated and run in hindcast over the 2002-2010 period. monthly average climatologies, interannual variabilities, and event-driven analysis of each year ‘s largest river discharge are all examined for tell of a river-ocean connection expressed through basal product. Storm event-generated turbulence appears to dominate the primary productiveness during the winter months. The shock of the river seems to be largely independent of nutrient load, because its dissolve nitrate is less than that of the coastal ocean. There is no evidence that riverine delivery of gradually bioavailable debris has a significant effect. Although a sufficiently super-nitrous river shows the ability to sustain a plume-nutrient-driven-bloom even at periods of extremely first gear menstruate, this is not presently a realistic scenario for the Eel River. The hypothesis remains that another micronutrient not studied in the model framework, such as iron, could be authoritative to this system. Keywords: ECCO Products Used: ECCO2URL: https://escholarship.org/uc/item/34k135nq Other URLs:
Yang, Qinghua; Locean data assimilation in osa, Svetlana N.; Losch, Martin; Tian-Kunze, Xiangshan; Nerger, Lars; Liu, Jiping; Kaleschke, Lars; Zhang, Zhanhai (2014). Assimilating SMOS sea ice thickness into a coupled ice-ocean model using a local SEIK filter, Journal of Geophysical Research: Oceans, 10 (119), 6680-6692, 10.1002/2014JC009963. Title: Assimilating SMOS sea ice rink thickness into a couple ice-ocean model using a local SEIK filter Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Yang, Qinghua ; Locean data acculturation in osa, Svetlana N. ; Losch, Martin ; Tian-Kunze, Xiangshan ; Nerger, Lars ; Liu, Jiping ; Kaleschke, Lars ; Zhang, Zhanhai Year: 2014 Formatted Citation: Yang, Q., S. N. Locean data assimilation in osa, M. Losch, X. Tian-Kunze, L. Nerger, J. Liu, L. Kaleschke, and Z. Zhang, 2014 : Assimilating SMOS ocean ice thickness into a copulate ice-ocean model using a local SEIK percolate. J. Geophys. Res. Ocean., 119 ( 10 ), 6680-6692, doi:10.1002/2014JC009963 Abstract: Keywords: ECCO Products Used: ECCO2 ; SeaIceURL: http://doi.wiley.com/10.1002/2014JC009963 Other URLs:
Dansereau, Véronique; Heimbach, Patrick; Losch, Martin (2014). Simulation of subice shelf melt rates in a general circulation model: Velocity-dependent transfer and the role of friction, Journal of Geophysical Research: Oceans, 3 (119), 1765-1790, 10.1002/2013JC008846. Title: Simulation of subice ledge melt rates in a cosmopolitan circulation model : Velocity-dependent transfer and the function of friction Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Dansereau, Véronique ; Heimbach, Patrick ; Losch, Martin Year: 2014 Formatted Citation: Dansereau, V., P. Heimbach, and M. Losch, 2014 : simulation of subice ledge melt rates in a general circulation model : Velocity-dependent transfer and the function of friction. J. Geophys. Res. Ocean., 119 ( 3 ), 1765-1790, doi:10.1002/2013JC008846 Abstract: Two parameterizations of disruptive limit layer processes at the interface between an ice shelf and the ocean below are investigated in terms of their affect on imitate dissolve rates and feedbacks. The parameterizations differ in the remove coefficients for estrus and fresh water fluxes. In their simplest form, they are assumed constant and hence are independent of the speed of ocean currents at the frost shelf floor. An augment melt rate parameterization accounts for frictional turbulence via transplant coefficients that do depend on boundary layer current velocities via a drag law. In simulations with both parameterizations for idealized adenine well as naturalistic cavity geometries under Pine Island Ice Shelf, West Antarctica, significant differences in mellow pace patterns between the velocity-independent and velocity-dependent formulations are found. While patterns are powerfully correlated to those of thermal forcing for velocity-independent transplant coefficients, melting in the case of velocity-dependent coefficients is collocated with regions of high boundary layer currents, in detail where rapid feather spring occurs. Both positive and negative feedbacks between melt rates, boundary layer temperature, velocities, and buoyancy fluxes are identified. Melt rates are found to increase with increasing scuff coefficient cadmium, in agreement with plume model simulations, but optimum values of Cd inferred from overcharge models are not well movable. Uncertainties therefore remain, both regarding simulated melt rate spatial distributions and magnitudes. Keywords: 0728 Ice shelves, 0762 Mass balance, 0766 Thermodynamics, 0798 Modeling, ice shelf model, ice shelf-ocean interactions, melt rate parameterization ECCO Products Used: IceSheetURL: http://dx.doi.org/10.1002/2013JC008846 Other URLs:
Vondrák, Jan; Ron, Cyril (2014). Geophysical excitation of nutation – comparasion of different models, Acta Geodynamica et Geomaterialia, 1-8, 10.13168/AGG.2014.0007. Title: Geophysical excitation of nutation – comparasion of unlike models Type: Journal article Publication: Acta Geodynamica et Geomaterialia Author(s): Vondrák, Jan ; Ron, Cyril Year: 2014 Formatted Citation: Vondrák, J., and C. Ron, 2014 : geophysical excitation of nutation – comparasion of different models. Acta Geodynamica et Geomaterialia, 1-8, doi:10.13168/AGG.2014.0007 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: http://www.irsm.cas.cz/index_en.php?page=acta_detail_doi&id=85 Other URLs:
Danabasoglu, Gokhan; Yeager, Steve G; Bailey, David; Behrens, Erik; Bentsen, Mats; Bi, Daohua; Biastoch, Arne; Böning, Claus; Bozec, Alexandra; Canuto, Vittorio M; Cassou, Christophe; Chassignet, Eric; Coward, Andrew C; Danilov, Sergey; Diansky, Nikolay; Drange, Helge; Farneti, Riccardo; Fernandez, Elodie; Fogli, Pier Giuseppe; Forget, Gael; Fujii, Yosuke; Griffies, Stephen M; Gusev, Anatoly; Heimbach, Patrick; Howard, Armando; Jung, Thomas; Kelley, Maxwell; Large, William G; Leboissetier, Anthony; Lu, Jianhua; Madec, Gurvan; Marsland, Simon J; Masina, Simona; Navarra, Antonio; George Nurser, A J; Pirani, Anna; y Mélia, David Salas; Samuels, Bonita L; Scheinert, Markus; Sidorenko, Dmitry; Treguier, Anne-Marie; Tsujino, Hiroyuki; Uotila, Petteri; Valcke, Sophie; Voldoire, Aurore; Wang, Qiang (2014). North Atlantic simulations in Coordinated Ocean-ice Reference Experiments phase II (CORE-II). Part I: Mean states, Ocean Modelling (73), 76-107, 10.1016/j.ocemod.2013.10.005. Title: North Atlantic simulations in Coordinated Ocean-ice Reference Experiments phase II ( CORE-II ). separate I : beggarly states Type: Journal article Publication: Ocean Modelling Author(s): Danabasoglu, Gokhan ; Yeager, Steve G ; Bailey, David ; Behrens, Erik ; Bentsen, Mats ; Bi, Daohua ; Biastoch, Arne ; Böning, Claus ; Bozec, Alexandra ; Canuto, Vittorio M ; Cassou, Christophe ; Chassignet, Eric ; Coward, Andrew C ; Danilov, Sergey ; Diansky, Nikolay ; Drange, Helge ; Farneti, Riccardo ; Fernandez, Elodie ; Fogli, Pier Giuseppe ; Forget, Gael ; Fujii, Yosuke ; Griffies, Stephen M ; Gusev, Anatoly ; Heimbach, Patrick ; Howard, Armando ; Jung, Thomas ; Kelley, Maxwell ; Large, William G ; Leboissetier, Anthony ; Lu, Jianhua ; Madec, Gurvan ; Marsland, Simon J ; Masina, Simona ; Navarra, Antonio ; George Nurser, A J ; Pirani, Anna ; y Mélia, David Salas ; Samuels, Bonita L ; Scheinert, Markus ; Sidorenko, Dmitry ; Treguier, Anne-Marie ; Tsujino, Hiroyuki ; Uotila, Petteri ; Valcke, Sophie ; Voldoire, Aurore ; Wang, Qiang Year: 2014 Formatted Citation: Danabasoglu, G. and Coauthors, 2014 : North Atlantic simulations in Coordinated Ocean-ice Reference Experiments phase II ( CORE-II ). partially I : mean states. Ocean Modelling, 73, 76-107, doi:10.1016/j.ocemod.2013.10.005 Abstract: Simulation characteristics from eighteen ball-shaped ocean-sea-ice coupled models are presented with a stress on the hateful Atlantic meridional overturning circulation ( AMOC ) and other related fields in the North Atlantic. These experiments use inter-annually varying atmospheric forcing data sets for the 60-year menstruation from 1948 to 2007 and are performed as contributions to the second phase of the Coordinated Ocean-ice Reference Experiments ( CORE-II ). The protocol for conducting such CORE-II experiments is summarized. Despite using the same atmospheric coerce, the solutions show significant differences. As most models besides differ from available observations, biases in the Labrador Sea region in upper-ocean electric potential temperature and salt distributions, desegregate layer depths, and sea-ice brood are identified as contributors to differences in AMOC. These differences in the solutions do not suggest an obvious group of the models based on their ocean model lineage, their vertical organize representations, or surface brininess restoring strengths. frankincense, the solution differences among the models are attributed primarily to use of different subgrid plate parameterizations and parameter choices american samoa well as to differences in vertical and horizontal grid resolutions in the ocean models. Use of a wide assortment of sea-ice models with diverse snow and sea-ice albedo treatments besides contributes to these differences. Based on the diagnostics considered, the majority of the models appear suitable for use in studies involving the North Atlantic, but some models require dedicated development feat. Keywords: Atlantic meridional overrule circulation, Atmospheric force, Experimental invention, Global ocean-sea-ice model, North Atlantic simulations, Ocean mannequin comparisons ECCO Products Used: ECCO-V4URL: http://www.sciencedirect.com/science/article/pii/S1463500313001868 Other URLs:
Seroussi, Hélène; Morlighem, M; Rignot, E; Mouginot, J; Larour, E; Schodlok, M; Khazendar, A (2014). Sensitivity of the dynamics of Pine Island Glacier, West Antarctica, to climate forcing for the next 50 years, The Cryosphere, 5 (8), 1699-1710, 10.5194/tc-8-1699-2014. Title: Sensitivity of the dynamics of Pine Island Glacier, West Antarctica, to climate force for the future 50 years Type: Journal article Publication: The Cryosphere Author(s): Seroussi, Hélène ; Morlighem, M ; Rignot, E ; Mouginot, J ; Larour, E ; Schodlok, M ; Khazendar, A Year: 2014 Formatted Citation: Seroussi, H., M. Morlighem, E. Rignot, J. Mouginot, E. Larour, M. Schodlok, and A. Khazendar, 2014 : sensitivity of the dynamics of Pine Island Glacier, West Antarctica, to climate push for the following 50 years. Cryosph., 8 ( 5 ), 1699-1710, doi:10.5194/tc-8-1699-2014 Abstract: Keywords: ECCO Products Used: ECCO2 ; IceSheetURL: http://www.the-cryosphere.net/8/1699/2014/ Other URLs:
Brzeziński, A.; Rajner, M. (2014). Estimation of the Chandler wobble parameters by the use of the Kalman deconvolution filter, Proc Journées 2013 Systèmes de référence spatio-temporels, 189-192. Title: Estimation of the Chandler shimmy parameters by the manipulation of the Kalman deconvolution filter Type: Conference Proceedings Publication: Proc Journées 2013 Systèmes de référence spatio-temporels Author(s): Brzeziński, A. ; Rajner, M. Year: 2014 Formatted Citation: Brzeziński, A., and M. Rajner, 2014 : appraisal of the Chandler careen parameters by the use of the Kalman deconvolution trickle. Proc Journées 2013 Systèmes de référence spatio-temporels, N. Capitaine, Eds. Observatoire de Paris, 189-192 pp. hypertext transfer protocol : //syrte.obspm.fr/jsr/journees2013/pdf/Brzezinski.pdf. Abstract: Keywords: ECCO Products Used: ECCO-KFS ; ECCO2 ; GECCOURL: https://syrte.obspm.fr/jsr/journees2013/pdf/Brzezinski.pdf Other URLs:
Sciascia, R; Cenedese, C; Nicolì, D; Heimbach, P; Straneo, F (2014). Impact of periodic intermediary flows on submarine melting of a Greenland glacier, Journal of Geophysical Research: Oceans, 10 (119), 7078-7098, 10.1002/2014JC009953. Title: Impact of periodic mediator flows on submarine thaw of a Greenland glacier Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Sciascia, R ; Cenedese, C ; Nicolì, D ; Heimbach, P ; Straneo, F Year: 2014 Formatted Citation: Sciascia, R., C. Cenedese, D. Nicolì, P. Heimbach, and F. Straneo, 2014 : impact of periodic mediator flows on submarine mellow of a Greenland glacier. J. Geophys. Res. Ocean., 119 ( 10 ), 7078-7098, doi:10.1002/2014JC009953 Abstract: The submarine fade of a erect glacier front, induced by an mediator circulation forced by periodic density variations at the mouth of a fjord, is investigated using a nonhydrostatic ocean general circulation model and idealize testing ground experiments. The idealize configurations broadly match that of Sermilik Fjord, southeast Greenland, a largely two layers system characterized by solid seasonal worker variability of subglacial fire. coherent with observations, the numerical results suggest that the mediator circulation is an effective mechanism for the advection of shelf anomalies inside the fjord. In the numeric simulations, the advection mechanism is a concentration intrusion with a speed which is an order of order of magnitude larger than the velocities associated with a glacier-driven circulation. In summer, submarine liquescent is by and large influenced by the discharge of surface runoff at the base of the glacier and the mediator circulation induces small changes in bomber liquescent. In winter, on the early hand, submarine melting depends merely on the water properties and speed distribution at the glacier presence. Hence, the properties of the waters advected by the mediator circulation to the glacier movement are found to be the primary control of the submarine melt. When the density of the invasion is intercede between those found in the fjord ‘s two layers, there is a meaning decrease in submarine melt. On the early hand, when the concentration is close to that of the bottom layer, only a flimsy reduction in submarine mellow is observed. The numeric results compare favorably to idealized testing ground experiments with a exchangeable apparatus. Keywords: 0720 Glaciers, 4203 Analytical model and testing ground experiment, 4255 Numerical model, 4540 Ice mechanics and air/sea/ice exchange proces, fjord dynamics, glacier mellow, ice-ocean model, testing ground experiment, numeral model ECCO Products Used: URL: http://dx.doi.org/10.1002/2014JC009953 Other URLs:
Belonenko, T V; Volkov, Denis L.; Norden, Y E; Ozhigin, V K (2014). Water Circulation in the Lofoten Basin of the Norwegian Sea, St. Petersburg University Bulletin. Earth Sciences, 2 (7), 108-121. Title: Water Circulation in the Lofoten Basin of the norwegian Sea Type: Journal article Publication: St. Petersburg University Bulletin. earth Sciences Author(s): Belonenko, T V ; Volkov, Denis L. ; Norden, Y E ; Ozhigin, V K Year: 2014 Formatted Citation: Belonenko, T. V., D. L. Volkov, Y. E. Norden, and V. K. Ozhigin, 2014 : Water Circulation in the Lofoten Basin of the norwegian Sea. St. Petersburg University Bulletin. Earth Sciences, 7 ( 2 ), 108-121, hypertext transfer protocol : //cyberleninka.ru/article/n/tsirkulyatsiya-vod-v-lofotenskoy-kotlovine-norvezhskogo-morya Abstract: I t has been known for decades that Lofoten Basin ( LB ) is a region of eminent mesoscale bodily process. Th is large topographical depression with a maximal depth of 3250 thousand located in the norwegian sea is associated with amplifi cation of EKE ( eddy kinetic energy ) and has some curious features of the circulation pattern. Quasi-permanent whirlpool in the center of the river basin is studied with data from ECCO2 eddy-permitting circulation model, altimeter data and trajectories of ARGO buoy. In this survey a comprehensive examination reappraisal of all the surveys related to the circulation in LB for the final 50 years is presented in order to structure cognition and supplement it with the results of fresh research. Th vitamin e data used in this newspaper confi rm that cosmopolitan water movement in LB is cyclonic along the boundaries of the basin with the distinguishing anticyclonic whirl in the center field of the basin. Th vitamin e explanation of this phenomenon is a capable for future research. Keywords: ECCO2, EKE, Lofoten Basin, Norwegian Atlantic Current, norwegian Sea, eddy-permitting exemplary, inflame florida ux, quasi-permanent whirlpool, thermohaline circulation, water masses ECCO Products Used: ECCO2URL: https://cyberleninka.ru/article/n/tsirkulyatsiya-vod-v-lofotenskoy-kotlovine-norvezhskogo-morya Other URLs:
Amos, Helen M; Jacob, Daniel J; Kocman, David; Horowitz, Hannah M; Zhang, Yanxu; Dutkiewicz, Stephanie; Horvat, Milena; Corbitt, Elizabeth S; Krabbenhoft, David P; Sunderland, Elsie M (2014). Global Biogeochemical Implications of Mercury Discharges from Rivers and Sediment Burial, Environmental Science & Technology, 16 (48), 9514-9522, 10.1021/es502134t. Title: Global Biogeochemical Implications of Mercury Discharges from Rivers and Sediment Burial Type: Journal article Publication: Environmental Science & Technology Author(s): Amos, Helen M ; Jacob, Daniel J ; Kocman, David ; Horowitz, Hannah M ; Zhang, Yanxu ; Dutkiewicz, Stephanie ; Horvat, Milena ; Corbitt, Elizabeth S ; Krabbenhoft, David P ; Sunderland, Elsie M Year: 2014 Formatted Citation: Amos, H. M. and Coauthors, 2014 : ball-shaped Biogeochemical Implications of Mercury Discharges from Rivers and Sediment Burial. Environmental Science & Technology, 48 ( 16 ), 9514-9522, doi:10.1021/es502134t Abstract: Rivers are an authoritative reservoir of mercury ( Hg ) to marine ecosystems. Based on an analysis of roll up observations, we estimate global contemporary Hg discharges from rivers to ocean margins are 27 +/- 13 Mmol a ( -1 ) ( 5500 +/- 2700 Mg a ( -1 ) ), of which 28 % reaches the open ocean and the perch is deposited to ocean margin sediments. globally, the source of Hg to the open ocean from rivers amounts to 30 % of atmospheric inputs. This is larger than previously estimated due to accounting for promote concentrations in asian rivers and unevenness in offshore enchant across different types of estuaries. Riverine inputs of Hg to the North Atlantic have decreased several-fold since the 1970s while inputs to the North Pacific have increased. These trends have boastfully effects on Hg concentrations at ocean margins but are excessively small in the open ocean to explain ascertained declines of seawater concentrations in the North Atlantic or increases in the North Pacific. Burial of Hg in ocean margin sediments represents a major sink in the global Hg biogeochemical bicycle that has not been previously considered. We find that including this cesspool in a fully coupled global biogeochemical box model helps to balance the large anthropogenetic free of Hg from commercial products recently added to ball-shaped inventories. It besides implies that bequest anthropogenetic Hg can be removed from active agent environmental cycle on a faster time scale ( centuries rather of millennium ). natural environmental Hg levels are lower than previously estimated, implying a relatively larger impingement from human activity. Keywords: air-sea substitution, arctic-ocean, estuary, heavy-metals, mackenzie river, mass-balance, metallic element accretion, south china, speciation, water ECCO Products Used: ECCO-V2URL: http://pubs.acs.org/doi/10.1021/es502134t Other URLs:
Childers, Katelin; Flagg, Charles N (2014). Circulation and Transport Across the Iceland Faroes Shetland Ridge, Marine and Atmospheric Science, 3684409 (Ph.D.), 122. Title: Circulation and Transport Across the Iceland Faroes Shetland Ridge Type: thesis Publication: Marine and Atmospheric Science Author(s): Childers, Katelin ; Flagg, Charles N Year: 2014 Formatted Citation: Childers, K., and C. N. Flagg, 2014 : circulation and Transport Across the Iceland Faroes Shetland Ridge. Marine and Atmospheric Science State University of New York at Stony Brook, Ann Arbor, Ph.D. ( 3684409 ), 122 pp. hypertext transfer protocol : //hdl.handle.net/11401/77790. Abstract: The pathways and variability of warm Atlantic Water crossing over the Iceland Faroes Scotland Ridge to the Nordic Seas are an important component of the large plate Atlantic circulation. This dissertation presents the spatial and temporal characteristics of the currents crossing the ridge from both an experimental and modeling perspective. former analyses of the volume flux across the ridge have relied on moor speed data and criterion hydrographic sections. A unique speed dataset collected hebdomadally by the M/F Norrona along repeated routes significantly improves the spatial resolution of observations between Iceland and Denmark. Output from a global climate model complements this work by establishing the mean circulation between the experimental sections. Following an insertion in chapter 1, an analysis of the beginning 4.5 years of hebdomadally experimental data collected by the Norrona program is presented in chapter 2. surface inflows enter over the easterly half of each section and ecstasy 1.5± 0.19 and 4.6± 0.46 Sv through the Faroe Shetland Channel ( FSC ) and across the Iceland Faroes Ridge ( IFR ), respectively. Fluctuations in the FSC inflows depend primarily on the southerly flux density over the Faroe ledge and gradient, while the inflow width drives IFR interannual unevenness. The description of regional circulation is expanded south in chapter 3, using historic data from an extra ship of opportunity. inflow paths from the North Atlantic Current to the Nordic Seas are presented. output from a high resolution ( 1/12o ), hourly, data assimilating run of the ECCO2 shape of the MITgcm enhances the description of the beggarly run between the experimental routes and offers insight into the mesoscale features which perturb the time averaged circulation in chapter 4. A streamline analysis in chapter 5, predicts the flow paths from the IFR around the north of the Faroes and into the FSC. The recirculation of Atlantic Water onto the Faroes ledge and slope is shown to be split between a larger component ( ~1 Sv ), which is entrained into the Shetland Slope Current over the eastern FSC, and a smaller flow ( ~0.5 Sv ), which circulates anticyclonically around the Faroes. Keywords: ECCO Products Used: ECCO2URL: http://hdl.handle.net/11401/77790 Other URLs:
Verdy, Ariane; Mazloff, Matthew R.; Cornuelle, Bruce D.; Kim, Sung Yong (2014). Wind-Driven Sea Level Variability on the California Coast: An Adjoint Sensitivity Analysis, Journal of Physical Oceanography, 1 (44), 297-318, 10.1175/JPO-D-13-018.1. Title: Wind-Driven Sea Level Variability on the California Coast : An Adjoint Sensitivity Analysis Type: Journal article Publication: Journal of Physical Oceanography Author(s): Verdy, Ariane ; Mazloff, Matthew R. ; Cornuelle, Bruce D. ; Kim, Sung Yong Year: 2014 Formatted Citation: Verdy, A., M. R. Mazloff, B. D. Cornuelle, and S. Y. Kim, 2014 : Wind-Driven Sea Level Variability on the California Coast : An Adjoint Sensitivity Analysis. Journal of Physical Oceanography, 44 ( 1 ), 297-318, doi:10.1175/JPO-D-13-018.1 Abstract: Keywords: ECCO Products Used: Adjoint ; SOSEURL: http://journals.ametsoc.org/doi/abs/10.1175/JPO-D-13-018.1 Other URLs:
Liu, Junjie; Bowman, Kevin W.; Lee, Meemong; Henze, Daven K; Bousserez, Nicolas; Brix, Holger; James Collatz, G; Menemenlis, Dimitris; Ott, Lesley; Pawson, Steven; Jones, Dylan; Nassar, Ray (2014). Carbon monitoring system flux estimation and attribution: impact of ACOS-GOSAT XCO2 sampling on the inference of terrestrial biospheric sources and sinks, Tellus B: Chemical and Physical Meteorology, 1 (66), 22486, 10.3402/tellusb.v66.22486. Title: Carbon monitor system flux density estimate and attribution : impact of ACOS-GOSAT XCO2 sampling on the inference of mundane biospheric sources and sinks Type: Journal article Publication: Tellus bacillus : Chemical and Physical Meteorology Author(s): Liu, Junjie ; Bowman, Kevin W. ; Lee, Meemong ; Henze, Daven K ; Bousserez, Nicolas ; Brix, Holger ; James Collatz, G ; Menemenlis, Dimitris ; Ott, Lesley ; Pawson, Steven ; Jones, Dylan ; Nassar, Ray Year: 2014 Formatted Citation: Liu, J. and Coauthors, 2014 : Carbon monitor organization blend appraisal and attribution : impingement of ACOS-GOSAT XCO2 sampling on the inference of sublunar biospheric sources and sinks. Tellus B : Chemical and Physical Meteorology, 66 ( 1 ), 22486, doi:10.3402/tellusb.v66.22486 Abstract: Using an Observing System Simulation Experiment ( OSSE ), we investigate the impact of JAXA Greenhouse gases Observing SATellite ‘IBUKI ‘ ( GOSAT ) sampling on the estimate of planetary biospheric blend with the NASA Carbon Monitoring System Flux ( CMS-Flux ) estimate and attribution scheme. The fake observations in the OSSE use the actual column carbon paper dioxide ( XCO2 ) b2.9 recovery sensitivity and timbre dominance for the year 2010 processed through the Atmospheric CO2 Observations from Space algorithm. CMS-Flux is a variational anastrophe organization that uses the GEOS-Chem forth and adjoint model forced by a suite of observationally constrained fluxes from ocean, land and anthropogenetic models. We investigate the affect of GOSAT sampling on flux estimate in two aspects : 1 ) random mistake uncertainty reduction and 2 ) the ball-shaped and regional bias in later flux resulted from the spatiotemporally biased GOSAT sampling. Based on Monte Carlo calculations, we find that global modal blend uncertainty decrease ranges from 25 % in September to 60 % in July. When aggregated to the 11 land regions designated by the phase 3 of the Atmospheric Tracer Transport Model Intercomparison Project, the annual beggarly doubt reduction ranges from 10 % over union american boreal to 38 % over south american temperate, which is driven by experimental coverage and the magnitude of anterior flux doubt. The doubt reduction over the south american tropical area is 30 %, even with sparse observation coverage. We show that this reduction results from the large anterior liquefy uncertainty and the impact of non-local observations. Given the assume prior erroneousness statistics, the academic degree of exemption for signal is ~1132 for 1-yr of the 74 055 GOSAT XCO2 observations, which indicates that GOSAT provides ~1132 independent pieces of data about coat fluxes. We quantify the impact of GOSAT ‘s spatiotemporally sampling on the later flux, and find that a 0.7 gigatons of carbon bias in the ball-shaped annual posterior flow resulted from the seasonally and diurnally biased sampling when using a diagonal prior flux density error covariance. Keywords: ECCO Products Used: ECCO2URL: https://doi.org/10.3402/tellusb.v66.22486 Other URLs:
Prakash, Amol (2014). Intraseasonal variability of currents along west coast of India, Goa University, 134. Title: Intraseasonal unevenness of currents along west coast of India Type: dissertation Publication: Goa University Author(s): Prakash, Amol Year: 2014 Formatted Citation: Prakash, A., 2014 : Intraseasonal unevenness of currents along west coast of India., Goa University. 134 pp. Abstract: Ocean currents transport both mass and energy from one location to another around the world. This transportation may be in form of heat, salt, nutrients, larva, debris or petroleum spills. The boastfully campaign of inflame and salt makes currents one of the most important driving forces of climate. This circulation not entirely stabilizes the global atmospheric circulation, but besides regulates the local weather, temperature extremum and air-sea gas exchanges. Currents besides play an significant function in the distribution of nautical liveliness around the world. They bring cold nutrient-rich water from deeper depths to the airfoil by a process known as upwelling. Such an ecosystem can support marine fish catches that are about 100 times the global average. nowadays, ocean currents are thought to be the future for alternative energy. As body of water is about 800 times denser than publicize, ocean currents can generate extremely gamey hydrokinetic baron evening at very moo menstruate rates. Whether the application is climate, marine biodiversity or clean energy source, cognition of currents has been important to the ground scientists, and to understand them one has to start by observing the oceans. Keywords: ECCO Products Used: ECCO2URL: http://irgu.unigoa.ac.in/drs/bitstream/handle/unigoa/4544/prakash_a_2014.pdf?sequence=1&isAllowed=y Other URLs:
Elipot, Shane; Frajka-Williams, Eleanor; Hughes, Chris W.; Willis, Josh K. (2014). The Observed North Atlantic Meridional Overturning Circulation: Its Meridional Coherence and Ocean Bottom Pressure, Journal of Physical Oceanography, 2 (44), 517-537, 10.1175/JPO-D-13-026.1. Title: The Observed North Atlantic Meridional Overturning circulation : Its Meridional Coherence and Ocean Bottom coerce Type: Journal article Publication: Journal of Physical Oceanography Author(s): Elipot, Shane ; Frajka-Williams, Eleanor ; Hughes, Chris W. ; Willis, Josh K. Year: 2014 Formatted Citation: Elipot, S., E. Frajka-Williams, C. W. Hughes, and J. K. Willis, 2014 : The Observed North Atlantic Meridional Overturning circulation : Its Meridional Coherence and Ocean Bottom Pressure. Journal of Physical Oceanography, 44 ( 2 ), 517-537, doi:10.1175/JPO-D-13-026.1 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/abs/10.1175/JPO-D-13-026.1 Other URLs:
Vallina, S M; Follows, Michael J.; Dutkiewicz, Stephanie; Montoya, J M; Cermeno, P; Loreau, M (2014). Global relationship between phytoplankton diversity and productivity in the ocean, Nature Communications, 1 (5), 4299, 10.1038/ncomms5299. Title: Global relationship between phytoplankton diverseness and productivity in the ocean Type: Journal article Publication: Nature Communications Author(s): Vallina, S M ; Follows, Michael J. ; Dutkiewicz, Stephanie ; Montoya, J M ; Cermeno, P ; Loreau, M Year: 2014 Formatted Citation: Vallina, S. M., M. J. Follows, S. Dutkiewicz, J. M. Montoya, P. Cermeno, and M. Loreau, 2014 : global relationship between phytoplankton diversity and productivity in the ocean. nature Communications, 5 ( 1 ), 4299, doi:10.1038/ncomms5299 Abstract: The condition of the productivity-diversity kinship ( PDR ) for marine phytoplankton has been suggested to be unimodal, that is, diverseness top out at intermediate levels of productiveness. however, there are few observations and there has been little attack to understand the mechanism that would lead to such a determine for planktonic organisms. hera we use a nautical ecosystem model together with the community forum theory to explain the shape of the unimodal PDR we obtain at the global plate. The positive slope from low to intermediate productivity is due to grazer manipulate with selective feed, which leads to the predator-mediated coexistence of prey. The damaging slope at high gear productivity is due to seasonal blooms of opportunist species that occur before they are regulated by grazers. The negative side is only unveil when the temporal scale of the notice captures the transeunt dynamics, which are particularly relevant at highly seasonal worker latitudes. frankincense selective predation explains the positive side while transeunt competitive exclusion explains the negative english of the unimodal PDR arch. The phytoplankton community composing of the positive and minus sides is largely dominated by slow-growing food specialists and aggressive nutrient opportunist species, respectively. Keywords: ECCO Products Used: URL: http://dx.doi.org/10.1038/ncomms5299 Other URLs: hypertext transfer protocol : //www.nature.com/articles/ncomms5299
Lipinski, Doug; Mohseni, Kamran (2014). Observations on the flow structures and transport in a simulated warm-core ring in the Gulf of Mexico, Ocean Dynamics, 1 (64), 79-88, 10.1007/s10236-013-0674-5. Title: Observations on the flow structures and transport in a simulate warm-core resound in the Gulf of Mexico Type: Journal article Publication: Ocean Dynamics Author(s): Lipinski, Doug ; Mohseni, Kamran Year: 2014 Formatted Citation: Lipinski, D., and K. Mohseni, 2014 : Observations on the menstruation structures and tape drive in a imitate warm-core ring in the Gulf of Mexico. Ocean Dynamics, 64 ( 1 ), 79-88, doi:10.1007/s10236-013-0674-5 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://link.springer.com/10.1007/s10236-013-0674-5 Other URLs:
Renner, Angelika H. H.; Gerland, Sebastian; Haas, Christian; Spreen, Gunnar; Beckers, Justin F.; Hansen, Edmond; Nicolaus, Marcel; Goodwin, Harvey (2014). Evidence of Arctic sea ice thinning from direct observations, Geophysical Research Letters, 14 (41), 5029-5036, 10.1002/2014GL060369. Title: Evidence of Arctic sea ice thinning from address observations Type: Journal article Publication: Geophysical Research Letters Author(s): Renner, Angelika H. H. ; Gerland, Sebastian ; Haas, Christian ; Spreen, Gunnar ; Beckers, Justin F. ; Hansen, Edmond ; Nicolaus, Marcel ; Goodwin, Harvey Year: 2014 Formatted Citation: Renner, A. H. H., S. Gerland, C. Haas, G. Spreen, J. F. Beckers, E. Hansen, M. Nicolaus, and H. Goodwin, 2014 : evidence of Arctic ocean ice thinning from direct observations. Geophys. Res. Lett., 41 ( 14 ), 5029-5036, doi:10.1002/2014GL060369 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2014GL060369 Other URLs:
Burchard, Hans; Gräwe, Ulf; Holtermann, Peter; Klingbeil, Knut; Umlauf, Ears (2014). Turbulence closure modelling in coastal waters, Kuste, 81 (81), 69-87. Title: Turbulence blockage modelling in coastal waters Type: Journal article Publication: Kuste Author(s): Burchard, Hans ; Gräwe, Ulf ; Holtermann, Peter ; Klingbeil, Knut ; Umlauf, Ears Year: 2014 Formatted Citation: Burchard, H., U. Gräwe, P. Holtermann, K. Klingbeil, and E. Umlauf, 2014 : turbulence closure modelling in coastal waters. Kuste, 81 ( 81 ), 69-87 Abstract: In this composition the use of turbulence closure models in coastal ocean models is reviewed. Two-equation turbulence blockage models are argued to be an optimum compromise between efficiency and accuracy for the purpose of calculating diapycnal fluxes of momenturn, heat and tracers in coastal ocean model. They provide adequate degrees of freedom to be calibrated to the most big properties of coastal ocean mix, but are calm numerically robust and computationally effective. Isopycnal mix schemes are briefly reviewed as well. major implementational and numerical aspects are presented, with some focus on the implicit in trouble of numerically-induced mix which together with the physically-induced mix gives the effective shuffle in ocean models. vertically adaptive coordinates are presented as one possibility to reduce numerical mix. last, three coastal ocean model examples from the General Estuarine Transport Model ( GETM ) which is coupled to the turbulence faculty of the General Ocean Turbulence Model. ( GOTM ) are given. These examples include thermocline mix in the Northern North Sea, physically and numerically induce desegregate in the Western Baltic Sea equally well as basinwide mix in the Central Baltic Sea. All three examples highlight the importance of using well-calibrated turbulence closing models together with vertically adaptive coordinates. Keywords: Adaptive coordinates, Coastal ocean model, General Estuarine Transport Model ( GETM ), General Ocean Turbulence Model ( GOTM ), Numerical mix, Turbulence blockage modelling ECCO Products Used: ECCO2 URL: Other URLs:
Hill, Jenna C.; Condron, Alan (2014). Subtropical iceberg scours and meltwater routing in the deglacial western North Atlantic, Nature Geoscience, 11 (7), 806-810, 10.1038/ngeo2267. Title: Subtropical crisphead lettuce scours and meltwater rout in the deglacial western North Atlantic Type: Journal article Publication: Nature Geoscience Author(s): Hill, Jenna C. ; Condron, Alan Year: 2014 Formatted Citation: Hill, J. C., and A. Condron, 2014 : subtropical crisphead lettuce scours and meltwater spread-eagle in the deglacial westerly North Atlantic. nature Geoscience, 7 ( 11 ), 806-810, doi:10.1038/ngeo2267 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://www.nature.com/articles/ngeo2267 Other URLs:
Dotto, T S; Kerr, R; Mata, M M; Azaneu, M; Wainer, I; Fahrbach, E; Rohardt, G (2014). Assessment of the structure and variability of Weddell Sea water masses in distinct ocean reanalysis products, Ocean Sci., 3 (10), 523-546, 10.5194/os-10-523-2014. Title: Assessment of the structure and variability of Weddell Sea water masses in distinct ocean reanalysis products Type: Journal article Publication: Ocean Sci. Author(s): Dotto, T S ; Kerr, R ; Mata, M M ; Azaneu, M ; Wainer, I ; Fahrbach, E ; Rohardt, G Year: 2014 Formatted Citation: Dotto, T. S., R. Kerr, M. M. Mata, M. Azaneu, I. Wainer, E. Fahrbach, and G. Rohardt, 2014 : assessment of the structure and unevenness of Weddell Sea water masses in distinct ocean reanalysis products. Ocean Sci., 10 ( 3 ), 523-546, doi:10.5194/os-10-523-2014 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://www.ocean-sci.net/10/523/2014/ Other URLs:
Nastula, Jolanta; Salstein, David A.; Gross, Richard (2014). Regional Multi-Fluid-Based Geophysical Excitation of Polar Motion, Earth on the Edge: Science for a Sustainable Planet, 467-472, 10.1007/978-3-642-37222-3_62. Title: Regional Multi-Fluid-Based Geophysical Excitation of Polar Motion Type: Book part Publication: earth on the edge : skill for a sustainable planet Author(s): Nastula, Jolanta ; Salstein, David A. ; Gross, Richard Year: 2014 Formatted Citation: Nastula, J., D. A. Salstein, and R. Gross, 2014 : regional Multi-Fluid-Based Geophysical Excitation of Polar Motion. land on the edge : science for a sustainable Planet, C. Rizos, and P. Willis, Eds., Springer-Verlag, 467-472, doi:10.1007/978-3-642-37222-3_62 Abstract: By analyzing geophysical fluids ‘ geographic distribution, we can isolate the regional birthplace for some of the important signals in arctic movement. An understand of such will enable us to determine whether certain climate signals can have an impingement on polar movement. here we have compared regional patterns of three surficial fluids : the atmosphere, ocean and land-based hydrosphere. The oceanic excitement function of polar apparent motion was estimated with the ECCO/JPL data-assimilating model, and the atmo- ball-shaped excitation function was determined from NCEP/NCAR reanalyses. The excitement function due to land hydrology was estimated from the Gravity Recovery and Climate Experiment ( GRACE ) data by an indirect approach that determines water thickness. Our attention focuses on the regional distribution of atmospheric and oceanic excitation of the annual and Chandler wobbles during 1993-2010, and on hydrologic excitation of these wobbles during 2002.9-2011.5. It is found that the regions of maximum fractional covariance ( those exceeding a measure of 3 10 ) for the annual band are over south Asia, southeast Asia and confederacy central amerind ocean, for hydrology, air and ocean respectively ; and for the Chandler menstruation, areas over North America, Asia, and southern South America ; and scattered across the southerly oceans for the atmosphere and oceans respectively. Keywords: ECCO Products Used: ECCO-KFSURL: http://link.springer.com/10.1007/978-3-642-37222-3_62 Other URLs:
Goebel, N.L.; Edwards, C.A.; Zehr, J.P.; Follows, M.J.; Morgan, S.G. (2013). Modeled phytoplankton diversity and productivity in the California Current System, Ecological Modelling (264), 37-47, 10.1016/j.ecolmodel.2012.11.008. Title: Modeled phytoplankton diverseness and productiveness in the California Current arrangement Type: Journal article Publication: Ecological Modelling Author(s): Goebel, N.L. ; Edwards, C.A. ; Zehr, J.P. ; Follows, M.J. ; Morgan, S.G. Year: 2013 Formatted Citation: Goebel, N.L., C.A. Edwards, J.P. Zehr, M.J. Follows, and S.G. Morgan, 2013, Modeled phytoplankton diversity and productiveness in the California Current System, Ecological Modelling, 264, 37-47, department of the interior : 10.1016/j.ecolmodel.2012.11.008 Abstract: We explore the phytoplankton community structure and the relationship between phytoplankton diverseness and productiveness produced by a self-emergent ecosystem model that represents a big numeral of phytoplankton type and is coupled to a circulation model of the California Current System. Biomass of each modeled phytoplankton type, when averaged over the topmost model level and for 5-years, spans 7 orders of order of magnitude ; 13 phytoplankton types contribute to the top 99.9 % of community biomass, defining modeled species richness. instantaneously, modeled species affluence ranges between 1 and 17 while the Shannon index reaches values of 2.3. Diversity versus primary productiveness shows big scatter with broken species impressiveness at both high and low productiveness levels and a wide range of values including the maximum at average productivities. Highest productiveness and moo diversity is found in the nearshore upwelling region dominated by debauched growing diatoms ; lowest productiveness and low diverseness occurs in deep, light-limited regions ; and average productiveness and high diverseness characterize offshore, oligotrophic open waters. locally average diversity and productiveness covary in time with the sign of correlation dependent on geographic area as representing portions of the diversity-productivity disperse. Keywords: ECCO Products Used: ECCO-V3URL: https://linkinghub.elsevier.com/retrieve/pii/S0304380012005455 Other URLs:
Zhai, Xiaoming (2013). On the wind mechanical forcing of the ocean general circulation, Journal of Geophysical Research: Oceans, 12 (118), 6561-6577, 10.1002/2013JC009086. Title: On the wind mechanical wedge of the ocean general circulation Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Zhai, Xiaoming Year: 2013 Formatted Citation: Zhai, X., 2013 : On the wind mechanical force of the ocean cosmopolitan circulation, Journal of Geophysical Research : Oceans, 118 ( 12 ), 6561-6577, department of the interior : 10.1002/2013JC009086 Abstract: The wind mechanical storm of the ocean general circulation and its seasonal variations are examined using available experimental products, focusing on the character of the average and fluctuating winds. It is found that including wind fluctuations in the stress calculation produces a qualitative change in the estimates of the hateful and seasonal hoist stress, particularly at mid and eminent latitudes where the synoptic fart variability is big. This effect of wind fluctuations on air-sea momentum change has immediate dynamic consequences for the large-scale ocean circulation. For exemplar, power input signal to the ocean general circulation and subtropical coil transport can be underestimated by more than 50 % if the fluctuate winds are not taken into explanation. however, the shock of including weave fluctuations depends strongly on the bearing of the beggarly winds. If the bastardly winds are ignored in the stress calculation, the final effect of the fluctuate winds is to take energy out of the ocean owing to the lopsidedness of the near-surface scent field. furthermore, covariances of wind fluctuations are found to explain most of the effect of the fluctuate winds, while the variable puff coefficient makes a non-negligible contribution in the southerly Ocean. These results imply that paleo and future climate studies need to take into report the changes of the large-scale low-frequency wind field a well as the synoptic weather systems. Keywords: ECCO Products Used: ECCO-V3URL: https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2013JC009086 Other URLs:
Jiang, Weiping; Li, Zhao; van Dam, Tonie; Ding, Wenwu (2013). Comparative analysis of different environmental loading methods and their impacts on the GPS height time series, Journal of Geodesy, 7 (87), 687-703, 10.1007/s00190-013-0642-3. Title: comparative analysis of unlike environmental cargo methods and their impacts on the GPS height time series Type: Journal article Publication: Journal of Geodesy Author(s): Jiang, Weiping ; Li, Zhao ; van Dam, Tonie ; Ding, Wenwu Year: 2013 Formatted Citation: Jiang, W., Z. Li, T. vanguard Dam, and W. Ding, 2013 : comparative analysis of different environmental load methods and their impacts on the GPS height time series. Journal of Geodesy, 87 ( 7 ), 687-703, doi:10.1007/s00190-013-0642-3 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: http://link.springer.com/10.1007/s00190-013-0642-3 Other URLs:
Johnson, Gregory C.; Chambers, Don P. (2013). Ocean bottom pressure seasonal cycles and decadal trends from GRACE Release-05: Ocean circulation implications, Journal of Geophysical Research: Oceans, 9 (118), 4228-4240, 10.1002/jgrc.20307. Title: Ocean bottom pressure seasonal cycles and decadal trends from GRACE Release-05 : Ocean circulation implications Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Johnson, Gregory C. ; Chambers, Don P. Year: 2013 Formatted Citation: Johnson, G. C., and D. P. Chambers, 2013 : Ocean bottom press seasonal worker cycles and decadal trends from GRACE Release-05 : Ocean circulation implications. J. Geophys. Res. Ocean., 118 ( 9 ), 4228-4240, doi:10.1002/jgrc.20307 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: http://doi.wiley.com/10.1002/jgrc.20307 Other URLs:
Palter, Jaime B.; Marinov, Irina; Sarmiento, Jorge L.; Gruber, Nicolas (2013). Large-Scale, Persistent Nutrient Fronts of the World Ocean: Impacts on Biogeochemistry. Title: Large-Scale, Persistent Nutrient Fronts of the World Ocean : Impacts on Biogeochemistry Type: Book part Publication: Author(s): Palter, Jaime B. ; Marinov, Irina ; Sarmiento, Jorge L. ; Gruber, Nicolas Year: 2013 Formatted Citation: Palter, J. B., I. Marinov, J. L. Sarmiento, and N. Gruber, 2013 : large-scale, persistent Nutrient Fronts of the World Ocean : Impacts on Biogeochemistry., doi:10.1007/698_2013_241 Abstract: Keywords: ECCO Products Used: OCCAURL: http://link.springer.com/10.1007/698_2013_241 Other URLs:
Maze, Guillaume; Deshayes, Julie; Marshall, John; Tréguier, Anne-Marie; Chronis, Alexandre; Vollmer, Lukas (2013). Surface vertical PV fluxes and subtropical mode water formation in an eddy-resolving numerical simulation, Deep Sea Research Part II: Topical Studies in Oceanography (91), 128-138, 10.1016/j.dsr2.2013.02.026. Title: Surface vertical PV fluxes and subtropical manner water formation in an eddy-resolving numerical pretense Type: Journal article Publication: Deep Sea Research Part II : topical Studies in oceanography Author(s): Maze, Guillaume ; Deshayes, Julie ; Marshall, John ; Tréguier, Anne-Marie ; Chronis, Alexandre ; Vollmer, Lukas Year: 2013 Formatted Citation: Maze, G., J. Deshayes, J. Marshall, A. Tréguier, A. Chronis, and L. Vollmer, 2013 : Surface vertical PV fluxes and subtropical manner water formation in an eddy-resolving numerical simulation. Deep Sea Research Part II : topical Studies in Oceanography, 91, 128-138, doi:10.1016/j.dsr2.2013.02.026 Abstract: Keywords: ECCO Products Used: OCCAURL: https://linkinghub.elsevier.com/retrieve/pii/S0967064513000830 Other URLs:
Piecuch, Christopher G. (2013). Dynamics of satellite-derived interannual ocean bottom pressure variability in the western tropical North Pacific, Journal of Geophysical Research: Oceans, 10 (118), 5117-5128, 10.1002/jgrc.20374. Title: Dynamics of satellite-derived interannual ocean bottom coerce unevenness in the western tropical North Pacific Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Piecuch, Christopher G. Year: 2013 Formatted Citation: Piecuch, C. G., 2013 : Dynamics of satellite-derived interannual ocean bed blackmail variability in the western tropical North Pacific. J. Geophys. Res. Ocean., 118 ( 10 ), 5117-5128, doi:10.1002/jgrc.20374 Abstract: Keywords: ECCO Products Used: OCCAURL: http://doi.wiley.com/10.1002/jgrc.20374 Other URLs:
Vinogradova, Nadya T; Ponte, Rui M (2013). Clarifying the link between surface salinity and freshwater fluxes on monthly to interannual time scales, Journal of Geophysical Research: Oceans, 6 (118), 3190-3201, 10.1002/jgrc.20200. Title: Clarifying the radio link between surface salt and fresh water fluxes on monthly to interannual meter scales Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Vinogradova, Nadya T ; Ponte, Rui M Year: 2013 Formatted Citation: Vinogradova, N. T., and R. M. Ponte, 2013 : Clarifying the liaison between come on salt and fresh water fluxes on monthly to interannual time scales. J. Geophys. Res. Ocean., 118 ( 6 ), 3190-3201, doi:10.1002/jgrc.20200 Abstract: Freshwater fluxes ( F ) between the ocean and the air and domain, comprised of vaporization, precipitation and terrestrial overflow, are an necessity component of the Earth ‘s climate system. however, direct observations of F and its components are sparse and available estimates have hearty uncertainties. In this report we investigate if measurements of sea-surface salt ( S ) can provide an alternative indirect method for estimating F. We examine the kinship between S, F and oceanic fluxes from surface advection and mix processes, on time scales from months to years, using a consistent estimate of the ocean/atmosphere state obtained from model/data synthesis produced by the ECCO ( Estimating Circulation and Climate of the Ocean ) consortium. ECCO brininess averaged over the mix layer is used as an estimate of S. Budget analysis shows that unevenness in S tendencies can be attributed to both F and oceanic fluxes, demonstrating the importance of the ocean ‘s function in development of S, for both local anesthetic and ball-shaped mean fields. Regression analysis of the 13 year long ECCO fields shows that there are lone a few regions ( for example, subtropical gyres ) where S can be used as a proxy for F using linear models, and only at monthly to annual time scales. Results are similar over a range of spatial scales from ∼100 to 2000 kilometer. Findings are discussed in the context of the general sensitivities of S to atmospheric and oceanic processes and the likely of satellite brininess measurements to constrain estimates of F. Keywords: 1620 Climate dynamics, 1655 Water cycles, 4215 Climate and interannual variability, 4504 Air/sea interactions, 4572 Upper ocean and mix layer processes, fresh water flux, surface brininess ECCO Products Used: ECCO-V2URL: http://dx.doi.org/10.1002/jgrc.20200 Other URLs:
Speer, Kevin; Forget, Gael (2013). Global Distribution and Formation of Mode Waters, International Geophysics (103), 211-226, 10.1016/B978-0-12-391851-2.00009-X. Title: Global Distribution and Formation of Mode Waters Type: Book incision Publication: International Geophysics Author(s): Speer, Kevin ; Forget, Gael Year: 2013 Formatted Citation: Speer, K., and G. Forget, 2013 : global distribution and Formation of Mode Waters. International Geophysics, G. Siedler, S. M. Griffies, J. Gould, and J. A. church, Eds., Elsevier Ltd., 103, 211-226, doi:10.1016/B978-0-12-391851-2.00009-X Abstract: This chapter is a brief survey of global mood water distribution and formation, with an vehemence on holocene approaches and techniques. A new upper ocean water multitude census based on observations from the Argo profiling float broadcast is presented, to revisit Worthington ‘s 1981 calculation exploiting the about global coverage and particularly the winter solution in these newer data, notably baffling with ship-based hydrography. Water mass volumes and stratification are calculated from the Argo data and used to describe the global distribution of manner waters and their seasonal worker cycle. Water aggregate transformation rates are derived from a ball-shaped state-estimate of the ocean and air-sea fluxes and applied to mode water density classes, to infer formation rates and to relate these to seasonal worker volumetric changes. A conceptual model has been applied to the generation of manner body of water in terms of PV fluxes at the sea coat ; dynamic mechanisms relevant to the shock of mode waters on circulation are summarized. Some results with climate simulations are noted, for the role of mode water in climate variability. © 2013 Elsevier Ltd. Keywords: Air-sea interaction, large-scale hydrography, Mode water, Physical oceanography, Potential vorticity, Stratification, Water batch census ECCO Products Used: ECCO-V4URL: http://dx.doi.org/10.1016/B978-0-12-391851-2.00009-X Other URLs: hypertext transfer protocol : //linkinghub.elsevier.com/retrieve/pii/B978012391851200009X
Xu, Yun (2013). Subaqueous Melting of Greenland Tidewater Glaciers. Title: subaqueous Melting of Greenland Tidewater Glaciers Type: dissertation Publication: Author(s): Xu, Yun Year: 2013 Formatted Citation: Xu, Y., 2013 : subaqueous Melting of Greenland Tidewater Glaciers., 131 pp. Abstract: The Greenland Ice Sheet has been experiencing accelerating mass loss in the past decades, ascribable to enhanced surface melt and accelerate ice dispatch into the ocean through tidewater glaciers. many tidewater glaciers accelerated as anomalous ardent water intruded the arctic fjords. subaqueous dissolve of the glaciers in the ocean is a potential gun trigger of glacier acceleration. however, processes of subaqueous melting are not well understood. In this dissertation, we modify an ocean general circulation model, MITgcm, to include the melting/freezing processes on the vertical calving expression of tidewater glaciers. We simulate the subaqueous melting using 2D and 3D convict gurations of the numeral model at high gear resolution ( 20-m to 1-m power system spacing ). The exemplary well represents the disruptive buoyant preen we simulate in a lab cooler, and is then applied to a frigid fjord knowledge domain convict gured from oceanographic data we collected in respective Greenland tidewater glacier fjords in August 2010 and 2012. The rate and distribution of subglacial fresh water discharge is estimated and to force model simulations. The numeric simulations show the churning upwelling and expansion of subglacial fresh water plumes, which induce high rates of subaqueous melting along their routes. average rates of subaqueous fade of Greenland tidewater glaciers could be several meters per day in summer and an order of magnitude smaller in winter. The melt pace increases less than linearly with subglacial fresh water fire and more than linearly with the ocean thermal force. The uncertainty of the distribution of subglacial fresh water empty leads to % error on the melt rate. We derive a sensitivity kinship between the thaw rate and ocean thermal wedge and subglacial water discharge for Store Glacier, and calculate the day by day melt rate of Store Glacier between 2008 and 2011. The fake melt pace in August 2010 compares well with the mellow rate derived from the oceanographic data. This study provides bare guidelines for interpreting holocene changes in glacier fronts as a result of climate warming and the inclusion of ice-ocean interactions along the calving fronts of Greenland glaciers in methamphetamine sheet numeric models. Keywords: ECCO Products Used: ECCO2 ; IceSheet URL: Other URLs:
Ward, Ben A; Dutkiewicz, Stephanie; Moore, C Mark; Follows, Michael J. (2013). Iron, phosphorus, and nitrogen supply ratios define the biogeography of nitrogen fixation, Limnology and Oceanography, 6 (58), 2059-2075, 10.4319/lo.2013.58.6.2059. Title: Iron, phosphorus, and nitrogen supply ratios define the biogeography of nitrogen fixation Type: Journal article Publication: Limnology and Oceanography Author(s): Ward, Ben A ; Dutkiewicz, Stephanie ; Moore, C Mark ; Follows, Michael J. Year: 2013 Formatted Citation: Ward, B. A., S. Dutkiewicz, C. M. Moore, and M. J. Follows, 2013 : Iron, morning star, and nitrogen supply ratios define the biogeography of nitrogen obsession. Limnology and Oceanography, 58 ( 6 ), 2059-2075, doi:10.4319/lo.2013.58.6.2059 Abstract: We present a incorporate conceptual model describing the competition between diazotrophs and non-nitrogen-fixing marine plankton and their interaction with three substantive alimentary elements : nitrogen ( N ), phosphorus ( P ), and iron ( Fe ). The theory explains the global biogeography of diazotrophs and the note large-scale variations in coat ocean food concentrations. The ratios in which N, P, and Fe are delivered to the open ocean, relative to the demands of the phytoplankton community, define several biogeochemical provinces in terms of the restrict nutrients and the presence or absence of diazotrophs. Nutrient add ratios provided by a global ecosystem mannequin accompaniment the theoretical view that diazotroph biogeography is dominated by the Fe : N provide ratio, with the P : N issue ratio taking an important secondary function. The theory yields full-bodied predictions for which potent empirical support is found in ball-shaped observations of surface alimentary concentrations and diazotroph abundance. Keywords: ECCO Products Used: ECCO-V2URL: http://dx.doi.org/10.4319/lo.2013.58.6.2059 Other URLs: hypertext transfer protocol : //doi.wiley.com/10.4319/lo.2013.58.6.2059
Straneo, Fiammetta; Heimbach, Patrick (2013). North Atlantic warming and the retreat of Greenland’s outlet glaciers, Nature, 7478 (504), 36-43, 10.1038/nature12854. Title: North Atlantic warm and the retreat of Greenland ’ s exit glaciers Type: Journal article Publication: nature Author(s): Straneo, Fiammetta ; Heimbach, Patrick Year: 2013 Formatted Citation: Straneo, F., and P. Heimbach, 2013 : North Atlantic heating and the retirement of Greenland ‘s mercantile establishment glaciers. nature, 504 ( 7478 ), 36-43, doi:10.1038/nature12854 Abstract: Mass passing from the Greenland ice sail quadrupled over the past two decades, contributing a quarter of the ascertained ball-shaped low-lying get up. Increased submarine thaw is thought to have triggered the withdraw of Greenland ‘s exit glaciers, which is partially responsible for the ice loss. however, the chain of events and physical processes remain baffling. late evidence suggests that an anomalous inflow of subtropical waters driven by atmospheric changes, multidecadal natural ocean unevenness and a long-run increase in the North Atlantic ‘s upper ocean heat content since the 1950s all contributed to a heating of the subpolar North Atlantic. This led, in conjunction with increased overflow, to enhanced submarine glacier melting. future climate projections raise the likely for continue increases in warming and ice-mass loss, with implications for ocean flat and climate. Keywords: ECCO Products Used: URL: http://dx.doi.org/10.1038/nature12854 Other URLs:
Chaudhuri, A H; Ponte, R M; Forget, G; Heimbach, P (2013). A Comparison of Atmospheric Reanalysis Surface Products over the Ocean and Implications for Uncertainties in Air-Sea Boundary Forcing, Journal of Climate, 1 (26), 153-170, 10.1175/jcli-d-12-00090.1. Title: A Comparison of Atmospheric Reanalysis Surface Products over the Ocean and Implications for Uncertainties in Air-Sea Boundary Forcing Type: Journal article Publication: Journal of Climate Author(s): Chaudhuri, A H ; Ponte, R M ; Forget, G ; Heimbach, P Year: 2013 Formatted Citation: Chaudhuri, A. H., R. M. Ponte, G. Forget, and P. Heimbach, 2013 : A Comparison of Atmospheric Reanalysis Surface Products over the Ocean and Implications for Uncertainties in Air-Sea Boundary Forcing. J. Clim., 26 ( 1 ), 153-170, doi:10.1175/jcli-d-12-00090.1 Abstract: This newspaper investigates the uncertainties related to atmospheric fields from reanalysis products used in forcing ocean models. Four reanalysis products, namely from 1 ) the interim ECMWF Re-Analysis ( ERA-Interim ), 2 ) translation 2 of the Common Reference Ocean-Ice Experiments ( CORE2 ), 3 ) the 25-Year japanese Reanalysis Project ( JRA-25 ), and 4 ) NCEP-NCAR, are evaluated against satellite-derived observations for eight different fields ( zonal and meridional winds, precipitation, specific humidity, continental discharge, come on air temperature, and downwelling longwave and shortwave radiation fluxes ). No single product is found to agree better in all fields with satellite-derived observations. Reanalysis products are largely comparable to each early because of their similar forcible assumptions and assimilation of park observations. Adjusted atmospheric fields from the Estimating the Circulation and Climate of the Ocean ( ECCO ) optimizations are besides in agreement with other reanalysis products. Time-mean and time-variable errors are estimated individually and mapped globally in quad, based on 14-day average fields to focus on monthly to interannual periods. Time-variable errors are larger in comparison to the signal than time-mean errors for most fields, frankincense justifying the necessitate to separate them for studying uncertainties deoxyadenosine monophosphate well as formulating optimization procedures. haste and wind stress fields show significant time-mean and time-variable errors whereas downwelling radiotherapy, air temperature, and humidity fields show small time-mean errors but big time-variable errors, peculiarly in the tropics. Uncertainties based on evaluating multiple products presented hera are well larger than uncertainties based on single product pairs. Keywords: atlantic, dismissal, fresh-water, general-circulation model, global precipitation, heat-flux, numeric weather prediction, pacific, sensitivity, temperature, churning fluxes ECCO Products Used: ECCO-V4 URL: Other URLs:
Hoteit, Ibrahim; Hoar, Tim; Gopalakrishnan, Ganesh; Collins, Nancy; Anderson, Jeffrey; Cornuelle, Bruce; Köhl, Armin; Heimbach, Patrick (2013). A MITgcm/DART ensemble analysis and prediction system with application to the Gulf of Mexico, Dynamics of Atmospheres and Oceans (63), 1-23, 10.1016/j.dynatmoce.2013.03.002. Title: A MITgcm/DART ensemble psychoanalysis and prediction system with application to the Gulf of Mexico Type: Journal article Publication: Dynamics of Atmospheres and Oceans Author(s): Hoteit, Ibrahim ; Hoar, Tim ; Gopalakrishnan, Ganesh ; Collins, Nancy ; Anderson, Jeffrey ; Cornuelle, Bruce ; Köhl, Armin ; Heimbach, Patrick Year: 2013 Formatted Citation: Hoteit, I., T. Hoar, G. Gopalakrishnan, N. Collins, J. Anderson, B. Cornuelle, A. Köhl, and P. Heimbach, 2013 : A MITgcm/DART ensemble analysis and prediction organization with application to the Gulf of Mexico. Dynamics of Atmospheres and Oceans, 63, 1-23, doi:10.1016/j.dynatmoce.2013.03.002 Abstract: This paper describes the development of an advance ensemble Kalman filter ( EnKF ) -based ocean data assimilation system for prediction of the development of the loop current in the Gulf of Mexico ( GoM ). The system integrates the Data Assimilation Research Testbed ( DART ) assimilation package with the Massachusetts Institute of Technology ocean general circulation model ( MITgcm ). The MITgcm/DART arrangement supports the assimilation of a wide range of ocean observations and uses an corps de ballet approach to solve the nonlinear assimilation problems. The GoM prediction system was implemented with an eddy-resolving 1/10th degree configuration of the MITgcm. assimilation experiments were performed over a 6-month period between May and October during a solid loop current event in 1999. The mannequin was consecutive constrained with hebdomadally satellite sea open temperature and altimetry data. Experiments results suggest that the ensemble-based assimilation system shows a high predictive skill in the GoM, with estimated ensemble go around chiefly concentrated around the battlefront of the cringle current. foster psychoanalysis of the system estimates demonstrates that the ensemble assimilation accurately reproduces the detect features without imposing any damaging shock on the dynamic balance of the organization. Results from sensitivity experiments with deference to the ensemble filter parameters are besides presented and discussed. Keywords: Data assimilation, ensemble Kalman percolate, Gulf of Mexico, Ocean country estimate ECCO Products Used: SOSEURL: http://www.sciencedirect.com/science/article/pii/S0377026513000249 Other URLs:
Nie, Xunwei; Gao, Shan; Wang, Fan (2013). Heat budget in the subduction region of the North Pacific central mode water as revealed by a global general circulation model, Marine Sciences, 9 (37), 1-9. Title: Heat budget in the subduction region of the North Pacific cardinal mode water system as revealed by a ball-shaped general circulation model Type: Journal article Publication: Marine Sciences Author(s): Nie, Xunwei ; Gao, Shan ; Wang, Fan Year: 2013 Formatted Citation: Nie, X., S. Gao, and F. Wang, 2013 : Heat budget in the subduction region of the North Pacific central manner water as revealed by a ball-shaped general circulation exemplary. Marine Sciences, 37 ( 9 ), 1-9, hypertext transfer protocol : //qdhys.ijournal.cn/hykxen/ch/reader/create_pdf.aspx ? file_no=20130901 & flag=1 & year_id=2013 & quarter_id=9 Abstract: The shuffle layer hotness budget in the subduction region of the North Pacific manner body of water ( CMW ) was evaluated with 18 years ( 1993~2010 ) data obtained using a global cosmopolitan circulation model ( GCM ). The spatial distribution, seasonal cycle and annual variability of the CMW were investigated. The relationship between the heat budget and the Pacific Decadal Oscillation ( PDO ) was analyzed decidedly. The results demonstrated that the heat budget in this region was a balance between surface heat force and ocean dynamic process. The mixing effect, particularly the churning dispersion was the dominant part of ocean dynamic procedure, which played the key function in the waste of heat in this region. There was strong seasonal worker cycle in the temperature and heat budget of this area, which was driven by seasonality in heat flux and mix layer depth. During the spring and summer, the mix layer depth ( MLD ) became very shallow and stable, and the coat push was the independent factor in control- ling the temporal variability of blend layer temperature ( MLT ). meanwhile the ocean moral force procedure was rela- tively decrepit, of which the mix was the main component. During the fall and winter, a dramatic cooling system effect on open leaded to the quick intensify of MLD and subduction, making the vertical entrainment into the principal part of ocean active process. On the contrary, although the mixing effect was however very significant, its pro- parcel becomes much smaller than that in spring and summer. The lag correlation coefficient between PDO and heat budget in this area indicated that the MLT contained significant PDO signal. The correlation coefficient between the annual variability of heat budget and the worldly leaning of PDO was −0.84. The temporal leaning of PDO was besides found to be highly correlated to most components of the heat budget. It was shown from the high correla- tion to the come on forcing that the surface forcing might have authoritative impression on the development of PDO. It was suggested from the high correlation to the vertical entrainment that the subducted CMW was identical possible to carry the PDO signal. As the chief ocean dynamic processes, the mix and advection seemed to be passively reacted to the variability of PDO. Keywords: ECCO Products Used: ECCO-KFSURL: http://qdhys.ijournal.cn/hykxen/ch/reader/create_pdf.aspx?file_no=20130901&flag=1&year_id=2013&quarter_id=9 Other URLs:
Le Bars, D.; Dijkstra, H. A.; De Ruijter, W. P. M. (2013). Impact of the Indonesian throughflow on Agulhas leakage, Ocean Science Discussions, 1 (10), 353-391, 10.5194/osd-10-353-2013. Title: Impact of the Indonesian throughflow on Agulhas escape Type: Journal article Publication: Ocean Science Discussions Author(s): Le Bars, D. ; Dijkstra, H. A. ; De Ruijter, W. P. M. Year: 2013 Formatted Citation: Le Bars, D., H. A. Dijkstra, and W. P. M. De Ruijter, 2013 : impact of the Indonesian throughflow on Agulhas escape. Ocean Science Discussions, 10 ( 1 ), 353-391, doi:10.5194/osd-10-353-2013 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://www.ocean-sci-discuss.net/10/353/2013/ Other URLs:
Gopalakrishnan, Ganesh; Cornuelle, Bruce D.; Hoteit, Ibrahim; Rudnick, Daniel L.; Owens, W. Brechner (2013). State estimates and forecasts of the loop current in the Gulf of Mexico using the MITgcm and its adjoint, Journal of Geophysical Research: Oceans, 10.1002/jgrc.20239. Title: State estimates and forecasts of the loop current in the Gulf of Mexico using the MITgcm and its adjoint Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Gopalakrishnan, Ganesh ; Cornuelle, Bruce D. ; Hoteit, Ibrahim ; Rudnick, Daniel L. ; Owens, W. Brechner Year: 2013 Formatted Citation: Gopalakrishnan, G., B. D. Cornuelle, I. Hoteit, D. L. Rudnick, and W. B. Owens, 2013 : country estimates and forecasts of the loop current in the Gulf of Mexico using the MITgcm and its adjoint. J. Geophys. Res. Ocean., doi:10.1002/jgrc.20239 Abstract: An ocean department of state estimate has been developed for the Gulf of Mexico ( GoM ) using the MIT general circulation model and its adjoint. The estimate has been tested by forecasting loop stream ( LC ) development and eddy shedding in the GoM. The adjoint ( or four-dimensional variational ) method was used to match the model evolution to observations by adjusting model temperature and salt initial conditions, open limit conditions, and atmospheric push fields. The model was meet to satellite-derived along-track sea surface acme, separated into temporal base and anomalies, and gridded sea airfoil temperature for 2 calendar month periods. The optimize state at the end of the assimilation period was used to initialize the bode for 2 months. Forecasts explore practical LC predictability and provide a cross-validation test of the department of state appraisal by comparing it to independent future observations. The model prognosis was tested for several LC eddy separation events, including Eddy Franklin in May 2010 during the deepwater horizon petroleum spill disaster in the GoM. The bode used monthly climatological open boundary conditions, atmospheric push, and run-off fluxes. The model performance was evaluated by computing model-observation root-mean-square dispute ( rmsd ) during both the hindcast and forecast periods. The rmsd metrics for the prognosis generally outperformed doggedness ( keeping the initial state fixed ) and address ( bode initialized using assimilate Hybrid Coordinate Ocean Model 1/12 degrees global analysis ) model simulations during LC eddy separation events for a menstruation of 1 similar to 2 months. Keywords: Gulf of Mexico, MITgcm, hindcast and prognosis, loop topology current, ocean model, submit estimate ECCO Products Used: SOSE URL: Other URLs:
Dushaw, Brian D.; Worcester, P F; Dzieciuch, M A; Menemenlis, Dimitris (2013). On the time-mean state of ocean models and the properties of long range acoustic propagation, Journal of Geophysical Research: Oceans, 9 (118), 4346-4362, 10.1002/jgrc.20325. Title: On the time-mean express of ocean models and the properties of long range acoustic generation Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Dushaw, Brian D. ; Worcester, P F ; Dzieciuch, M A ; Menemenlis, Dimitris Year: 2013 Formatted Citation: Dushaw, B. D., P. F. Worcester, M. A. Dzieciuch, and D. Menemenlis, 2013 : On the time-mean submit of ocean models and the properties of farseeing range acoustic propagation. J. Geophys. Res. Ocean., 118 ( 9 ), 4346-4362, doi:10.1002/jgrc.20325 Abstract: Receptions on three vertical hydrophone arrays from basin-scale acoustic transmissions in the North Pacific during 1996 and 1998 are used to test the time-mean sound-speed properties of the World Ocean Atlas 2005 ( WOA05 ), of an eddy unconstrained simulation of the Parallel Ocean Program ( POP ), and of three data-constrained solutions provided by the estimating the circulation and climate of the ocean ( ECCO ) project : a solution based on an estimate Kalman filter from the Jet Propulsion Laboratory ( ECCO-JPL ), a solution based on the adjoint method from the Massachusetts Institute of Technology ( ECCO-MIT ), and an eddying solution based on a Green ‘s function approach from ECCO, Phase II ( ECCO2 ). Predictions for arrival patterns using annual average WOA05 fields match observations to within little travel time offsets ( 0.3-1.0 randomness ). Predictions for arrival patterns from the models differ substantially from the measured arrival patterns, from the WOA05 climatology, and from each other, both in terms of travel clock and in the structure of the arrival patterns. The acoustic arrival patterns are sensitive to the upright gradients of sound focal ratio that govern acoustic propagation. Basin-scale acoustic transmissions, consequently, provide rigorous tests of the vertical temperature structure of ocean state estimates. This structure ultimately influences the shuffle between the surface waters and the ocean interior. The relatively dear agreement of the acoustic data with the more recent ECCO solutions indicates that numerical ocean models have reached a level of accuracy where the acoustic data can provide utilitarian extra constraints for ocean country appraisal. Keywords: 4255 Numerical mold, 4259 Ocean acoustics, 4260 Ocean data assimilation and reanalysis, 4262 Ocean observing systems, acoustic thermometry, model test, ocean models ECCO Products Used: ECCO-KFS ; ECCO-V3 ; ECCO2URL: http://dx.doi.org/10.1002/jgrc.20325 Other URLs:
Kalmikov, Alexander G (2013). Uncertainty Quantification in ocean state estimation. Title: Uncertainty Quantification in ocean state estimate Type: thesis Publication: Author(s): Kalmikov, Alexander G Year: 2013 Formatted Citation: Kalmikov, A. G., 2013 : uncertainty quantification in ocean state appraisal. MIT-WHOI joint Program hypertext transfer protocol : //hdl.handle.net/1721.1/79291. Abstract: Keywords: ECCO Products Used: URL: http://hdl.handle.net/1721.1/79291 Other URLs:
Blunden, Jessica; Arndt, Derek S. (2013). State of the Climate in 2012, Bulletin of the American Meteorological Society, 8 (94), S1-S258, 10.1175/2013BAMSStateoftheClimate.1. Title: State of the Climate in 2012 Type: Journal article Publication: Bulletin of the american Meteorological club Author(s): Blunden, Jessica ; Arndt, Derek S. Year: 2013 Formatted Citation: Blunden, J., and D. S. Arndt, 2013 : department of state of the Climate in 2012. Bull. Am. Meteorol. Soc., 94 ( 8 ), S1-S258, doi:10.1175/2013BAMSStateoftheClimate.1 Abstract: Editors note : For easy download the posted pdf of the State of the Climate for 2012 is a very low-resolution file. A high-resolution replicate of the report is available by clicking here. Please be patient as it may take a few minutes for the high-resolution charge to download. Keywords: ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/10.1175/2018BAMSStateoftheClimate.1 Other URLs: hypertext transfer protocol : //journals.ametsoc.org/doi/abs/10.1175/2013BAMSStateoftheClimate.1, hypertext transfer protocol : //journals.ametsoc.org/bams/article/94/8/S1/60367/State-of-the-Climate-in-2012
van Sebille, Erik; Spence, Paul; Mazloff, Matthew R; England, Matthew H; Rintoul, Stephen R; Saenko, Oleg A (2013). Abyssal connections of Antarctic Bottom Water in a Southern Ocean State Estimate, Geophysical Research Letters, 10 (40), 2177-2182, 10.1002/grl.50483. Title: Abyssal connections of Antarctic Bottom Water in a southerly Ocean State Estimate Type: Journal article Publication: Geophysical Research Letters Author(s): van Sebille, Erik ; Spence, Paul ; Mazloff, Matthew R ; England, Matthew H ; Rintoul, Stephen R ; Saenko, Oleg A Year: 2013 Formatted Citation: van Sebille, E., P. Spence, M. R. Mazloff, M. H. England, S. R. Rintoul, and O. A. Saenko, 2013 : Abyssal connections of Antarctic Bottom Water in a southern Ocean State Estimate. Geophys. Res. Lett., 40 ( 10 ), 2177-2182, doi:10.1002/grl.50483 Abstract: Antarctic Bottom Water ( AABW ) is formed in a few locations around the Antarctic continent, each informant with distinct temperature and brininess. After formation, the unlike AABW varieties cross the Southern Ocean and flow into the subtropical abysmal basins. It is shown here, using the analysis of Lagrangian trajectories within the southern Ocean State Estimate ( SOSE ) exemplar, that the pathways of the different sources of AABW have to a bombastic extent amalgamated into one nerve pathway by the fourth dimension it reaches 31 { \textdegree } S in the abstruse subtropical basins. The antarctic Circumpolar Current appears to play an authoritative function in the amalgamation, as 70 % of the AABW completes at least one circumpolar closed circuit before reaching the subtropical basins. This amalgamation of AABW pathways suggests that on decadal to centennial time scales, changes to properties and formation rates in any of the AABW source regions will be conveyed to all three subtropical abyssal basins. Keywords: Arctic and Antarctic oceanography, Deep recirculations, Lagrangian trajectories, Southern Ocean, south-polar bottom water, currents, deeply ocean circulation, water system masses ECCO Products Used: SOSEURL: http://dx.doi.org/10.1002/grl.50483 Other URLs:
Li, Qun; Zhang, Zhanhai; Wu, Huiding (2013). Interaction of an anticyclonic eddy with sea ice in the western Arctic Ocean: an eddy-resolving model study, Acta Oceanologica Sinica, 3 (32), 54-62, 10.1007/s13131-013-0289-1. Title: Interaction of an anticyclonic eddy with sea ice in the western Arctic Ocean : an eddy-resolving model learn Type: Journal article Publication: Acta Oceanologica Sinica Author(s): Li, Qun ; Zhang, Zhanhai ; Wu, Huiding Year: 2013 Formatted Citation: Li, Q., Z. Zhang, and H. Wu, 2013 : interaction of an anticyclonic eddy with sea ice rink in the western Arctic Ocean : an eddy-resolving mannequin analyze. Acta Oceanologica Sinica, 32 ( 3 ), 54-62, doi:10.1007/s13131-013-0289-1 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://link.springer.com/10.1007/s13131-013-0289-1 Other URLs:
Yan, Youfang; Chassignet, Eric P.; Qi, Yiquan; Dewar, William K. (2013). Freshening of Subsurface Waters in the Northwest Pacific Subtropical Gyre: Observations and Dynamics, Journal of Physical Oceanography, 12 (43), 2733-2751, 10.1175/JPO-D-13-03.1. Title: Freshening of Subsurface Waters in the Northwest Pacific Subtropical Gyre : Observations and Dynamics Type: Journal article Publication: Journal of Physical Oceanography Author(s): Yan, Youfang ; Chassignet, Eric P. ; Qi, Yiquan ; Dewar, William K. Year: 2013 Formatted Citation: Yan, Y., E. P. Chassignet, Y. Qi, and W. K. Dewar, 2013 : freshen of Subsurface Waters in the Northwest Pacific Subtropical Gyre : Observations and Dynamics. Journal of Physical Oceanography, 43 ( 12 ), 2733-2751, doi:10.1175/JPO-D-13-03.1 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: http://journals.ametsoc.org/doi/abs/10.1175/JPO-D-13-03.1 Other URLs:
Li, Qun; WU, Huiding; Zhang, Lu (2013). Modeling Seasonal Variation of Sea Ice in Prydz Bay, Antarctica, International Journal of Offshore and Polar Engineering, 1 (23), 15-21. Title: Modeling Seasonal Variation of Sea Ice in Prydz Bay, Antarctica Type: Journal article Publication: International Journal of Offshore and Polar Engineering Author(s): Li, Qun ; WU, Huiding ; Zhang, Lu Year: 2013 Formatted Citation: Li, Q., H. WU, and L. Zhang, 2013 : Modeling Seasonal Variation of Sea Ice in Prydz Bay, Antarctica. International Journal of Offshore and Polar Engineering, 23 ( 1 ), 15-21, hypertext transfer protocol : //www.onepetro.org/journal-paper/ISOPE-13-23-1-015 Abstract: Keywords: ECCO Products Used: ECCO2 ; SeaIceURL: https://www.onepetro.org/journal-paper/ISOPE-13-23-1-015 Other URLs:
Landerer, Felix W.; Volkov, Denis L. (2013). The anatomy of recent large sea level fluctuations in the Mediterranean Sea, Geophysical Research Letters, 3 (40), 553-557, 10.1002/grl.50140. Title: The anatomy of holocene large sea level fluctuations in the Mediterranean Sea Type: Journal article Publication: Geophysical Research Letters Author(s): Landerer, Felix W. ; Volkov, Denis L. Year: 2013 Formatted Citation: Landerer, F. W., and D. L. Volkov, 2013 : The anatomy of late large ocean horizontal surface fluctuations in the Mediterranean Sea. Geophys. Res. Lett., 40 ( 3 ), 553-557, doi:10.1002/grl.50140 Abstract: During the boreal winter months of 2009/2010 and 2010/2011, Mediterranean mean sea flush rose 10 cm above the average monthly climatological values. The non-seasonal anomalies were observed in ocean surface height ( from altimetry ), vitamin a well as ocean bulk ( from hydrometry ), indicating they were by and large of barotropic nature. These relatively rapid basin-wide fluctuations occurred over fourth dimension scales of 1-5 months. here we use observations and re-analysis data to attribute the non-seasonal ocean level and ocean multitude fluctuations in the Mediterranean Sea to concurrent wind try anomalies over the adjacent subtropical Northeast Atlantic Ocean, good west of the Strait of Gibraltar, and extending into the strait itself. The watch Mediterranean sea level fluctuations are strongly anti-correlated with the monthly North-Atlantic-Oscillation ( NAO ) index. citation : Landerer, F. W., and D. L. Volkov ( 2013 ), The anatomy of holocene boastfully ocean level fluctuations in the Mediterranean Sea, Geophys. Res. Lett., 40, 553-557, doi:10.1002/grl.50140. Keywords: Mediterranean, ocean mass, sea level ECCO Products Used: ECCO-KFS URL: Other URLs:
Taylor, Marc H.; Losch, Martin; Bracher, Astrid (2013). On the drivers of phytoplankton blooms in the Antarctic marginal ice zone: A modeling approach, Journal of Geophysical Research: Oceans, 1 (118), 63-75, 10.1029/2012JC008418. Title: On the drivers of phytoplankton blooms in the Antarctic fringy ice partition : A model approach Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Taylor, Marc H. ; Losch, Martin ; Bracher, Astrid Year: 2013 Formatted Citation: Taylor, M. H., M. Losch, and A. Bracher, 2013 : On the drivers of phytoplankton blooms in the Antarctic borderline ice partition : A model border on. J. Geophys. Res. Ocean., 118 ( 1 ), 63-75, doi:10.1029/2012JC008418 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1029/2012JC008418 Other URLs:
Khatiwala, S; Tanhua, T; Fletcher, S M; Gerber, M; Doney, S C; Graven, H D; Gruber, N; McKinley, Galen A.; Murata, A; Rios, A F; Sabine, C L (2013). Global ocean storage of anthropogenic carbon, Biogeosciences, 4 (10), 2169-2191, 10.5194/bg-10-2169-2013. Title: Global ocean storage of anthropogenetic carbon Type: Journal article Publication: Biogeosciences Author(s): Khatiwala, S ; Tanhua, T ; Fletcher, S M ; Gerber, M ; Doney, S C ; Graven, H D ; Gruber, N ; McKinley, Galen A. ; Murata, A ; Rios, A F ; Sabine, C L Year: 2013 Formatted Citation: Khatiwala, S. and Coauthors, 2013 : global ocean storage of anthropogenetic carbon. Biogeosciences, 10 ( 4 ), 2169-2191, doi:10.5194/bg-10-2169-2013 Abstract: The global ocean is a significant sink for anthropogenetic carbon paper ( C-ant ), absorbing roughly a third of human CO2 emitted over the industrial period. robust estimates of the order of magnitude and unevenness of the storage and distribution of C-ant in the ocean are consequently significant for understanding the homo impingement on climate. In this synthesis we review experimental and model-based estimates of the storehouse and transport of C-ant in the ocean. We pay detail care to the uncertainties and electric potential biases implicit in in different inference schemes. On a global scale, three experimental estimates of the distribution and inventory of C-ant are now available. While the inventories are found to agree within their uncertainty, there are considerable differences in the spatial distribution. We besides present a revue of the build up made in the application of inverse and data acculturation techniques which combine ocean department of the interior estimates of C-ant with numeral ocean circulation models. such methods are particularly useful for estimating the air-sea flux and interior transport of C-ant, quantities that are otherwise difficult to observe directly. however, the results are found to be highly pendent on model circulation, with the spread due to different ocean models at least a big as that from the different experimental methods used to estimate C-ant. Our review besides highlights the importance of repeat measurements of hydro-graphic and biogeochemical parameters to estimate the storehouse of C-ant on decadal timescales in the presence of the variability in circulation that is neglected by other approaches. experimental C-ant estimates provide important constraints on forward ocean models, which exhibit both broad similarities and regional errors relative to the experimental fields. A compilation of inventories of C-ant gives us a “ best ” calculate of the ball-shaped ocean stock of anthropogenetic carbon in 2010 of 155 +/- 31 PgC ( +/- 20 % uncertainty ). This estimate includes a broad roll of values, suggesting that a combination of approaches is necessary in holy order to achieve a robust quantification of the ocean cesspool of anthropogenetic CO2. Keywords: bulk data, carbon dioxide storehouse, deep-water, dissolved inorganic carbon, indian-ocean, pacific-ocean, sea, southern-ocean, subpolar north-atlantic, transit-time ECCO Products Used: ECCO-V1 URL: Other URLs:
Peralta Ferriz, Ana Cecilia (2013). Arctic Ocean Circulation Patterns Revealed by Ocean Bottom Pressure Anomalies. Title: Arctic Ocean Circulation Patterns Revealed by Ocean Bottom Pressure Anomalies Type: thesis Publication: Author(s): Peralta Ferriz, Ana Cecilia Year: 2013 Formatted Citation: Peralta Ferriz, A. C., 2013 : arctic Ocean Circulation Patterns Revealed by Ocean Bottom Pressure Anomalies. hypertext transfer protocol : //hdl.handle.net/1773/22539. Abstract: Over the stopping point few decades, the Arctic Ocean has experienced drastic changes that include increase temperature, changes in fresh water distribution, and decrease in ocean ice rink extent and thickness. These changes, which potentially affect ball-shaped climate, are closely linked to changes in the Arctic Ocean circulation. therefore, understanding Arctic Ocean circulation patterns is fundamental to monitor and predicting the destiny of the Arctic System. Since 2002, NASA ‘s Gravity Recovery and Climate Experiment ( GRACE ) has provided continuous measurements of the time-varying gravity airfield of the Arctic Ocean. The gravitational variations represent mass variations, or the time-varying ocean bottom press ( OBP ) field. OBP variations are the sum of the mass change due to the sea open stature change and the integrate concentration variations through the water column. In this dissertation, in situ and GRACE measurements of OBP anomalies, complemented by information from ocean models, are used to investigate the relative contribution of sea surface height and density-variations on the Arctic OBP field. The dynamics associated with the observe OBP changes are investigated. major findings include the identification of three primary temporal-spatial modes of OBP variability at monthly to inter-annual timescales with the follow characteristics : – manner 1 is a winter basin-coherent Arctic mass deepen forced by southerly winds through Bering and Fram Straits. – mode 2 reveals mass deepen along the siberian shelves, driven by surface Ekman dynamics and associated with the Arctic Oscillation. – manner 3 reveals a multitude drop in western Arctic shelves forced by the tone of the anticyclonic Beaufort Gyre, and winter along-shore westerly winds that increase OBP in the Eastern Arctic shelves. The OBP changes in the Kara Sea reveal a more baroclinic ocean character than modeling results have previously suggested, due to the complex bathymetry of this region and runoff-derived large concentration changes through the water column. This cultivate integrates the character of the Arctic mass changes at different timescales, and provides information about the ocean mass re-distribution during years of quickly thinning and disappearing seasonal sea ice. Keywords: ECCO Products Used: ECCO2URL: http://hdl.handle.net/1773/22539 Other URLs:
Schiller, Andreas; Lee, Tong; Masuda, Shuhei (2013). Methods and Applications of Ocean Synthesis in Climate Research, Ocean Circulation and Climate, 581-608, 10.1016/B978-0-12-391851-2.00022-2. Title: Methods and Applications of Ocean Synthesis in Climate Research Type: Book department Publication: Ocean Circulation and Climate Author(s): Schiller, Andreas ; Lee, Tong ; Masuda, Shuhei Year: 2013 Formatted Citation: Schiller, A., T. Lee, and S. Masuda, 2013 : Methods and Applications of Ocean Synthesis in Climate Research. Ocean Circulation and Climate, 581-608, doi:10.1016/B978-0-12-391851-2.00022-2 Abstract: Keywords: ECCO Products Used: ECCO-KFS ; ECCO2 ; GECCOURL: https://linkinghub.elsevier.com/retrieve/pii/B9780123918512000222 Other URLs:
Msadek, Rym; Johns, William E.; Yeager, Stephen G.; Danabasoglu, Gokhan; Delworth, Thomas L.; Rosati, Anthony (2013). The Atlantic Meridional Heat Transport at 26.5°N and Its Relationship with the MOC in the RAPID Array and the GFDL and NCAR Coupled Models, Journal of Climate, 12 (26), 4335-4356, 10.1175/JCLI-D-12-00081.1. Title: The Atlantic Meridional Heat Transport at 26.5°N and Its relationship with the MOC in the RAPID Array and the GFDL and NCAR Coupled Models Type: Journal article Publication: Journal of Climate Author(s): Msadek, Rym ; Johns, William E. ; Yeager, Stephen G. ; Danabasoglu, Gokhan ; Delworth, Thomas L. ; Rosati, Anthony Year: 2013 Formatted Citation: Msadek, R., W. E. Johns, S. G. Yeager, G. Danabasoglu, T. L. Delworth, and A. Rosati, 2013 : The Atlantic Meridional Heat Transport at 26.5°N and Its kinship with the MOC in the RAPID Array and the GFDL and NCAR Coupled Models. J. Clim., 26 ( 12 ), 4335-4356, doi:10.1175/JCLI-D-12-00081.1 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/abs/10.1175/JCLI-D-12-00081.1 Other URLs:
Jin, Shuanggen (2013). Satellite Gravimetry: Mass Transport and Redistribution in the Earth System, Geodetic Sciences – Observations, Modeling and Applications, 157-174, 10.5772/51698. Title: Satellite Gravimetry : Mass Transport and Redistribution in the earth System Type: Book section Publication: Geodetic Sciences – Observations, Modeling and Applications Author(s): Jin, Shuanggen Year: 2013 Formatted Citation: Jin, S., 2013 : satellite hydrometry : Mass Transport and Redistribution in the Earth System. Geodetic Sciences – Observations, Modeling and Applications, InTech, 157-174, doi:10.5772/51698 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: http://www.intechopen.com/books/geodetic-sciences-observations-modeling-and-applications/satellite-gravimetry-mass-transport-and-redistribution-in-the-earth-system Other URLs:
Volkov, Denis L.; Landerer, Felix W (2013). Nonseasonal fluctuations of the Arctic Ocean mass observed by the GRACE satellites, Journal of Geophysical Research: Oceans, 12 (118), 6451-6460, 10.1002/2013JC009341. Title: Nonseasonal fluctuations of the Arctic Ocean mass observed by the GRACE satellites Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Volkov, Denis L. ; Landerer, Felix W Year: 2013 Formatted Citation: Volkov, D. L., and F. W. Landerer, 2013 : Nonseasonal fluctuations of the Arctic Ocean mass observed by the GRACE satellites. J. Geophys. Res. Ocean., 118 ( 12 ), 6451-6460, doi:10.1002/2013JC009341 Abstract: Time varying gravity observations from the GRACE satellites reveal potent nonseasonal fluctuations of penetrate blackmail in the Arctic Ocean on the time scales from 2 to 6 months and a record-high penetrate pressure anomaly in February of 2011. here, we examine the nature and drive forces behind those fluctuations. We find that the nonseasonal unevenness of the Arctic Ocean mass is powerfully coupled to wind force. The zonal wreathe convention is correlated with a dipole form of Arctic Ocean multitude changes. westerly wind instrument intensification over the North Atlantic at about 60°N arsenic well as over the russian Arctic continental shelf break cause the ocean mass to decrease in the Nordic seas and in the central Arctic, and to increase over the russian Arctic shelf. Basin-wide Arctic Ocean mass fluctuations are correlated with north wind anomalies over the northeastern North Atlantic and Nordic seas, and over the Bering Sea. We show that convinced ( negative ) Arctic Ocean mass anomalies are associated with anticyclonic ( cyclonic ) anomalies of the large-scale ocean circulation traffic pattern. Based on ocean model simulations, we conclude that the detect nonseasonal Arctic Ocean mass unevenness is by and large explained by the net horizontal wind-driven transports, and the contribution of bracing body of water fluxes is negligible. We demonstrate that transport anomalies across both the Atlantic and Pacific gateways were evenly important for generating big Arctic Ocean multitude anomalies in 2011. Keywords: 1217 Time variable graveness, 1223 Ocean/Earth/atmosphere/hydrosphere/cryosphere, 4207 Arctic and Antarctic oceanography, 4556 Sea level : variations and mean, Arctic Ocean, ECCO2, GRACE, nonseasonal unevenness, ocean mass, ocean level ECCO Products Used: ECCO2URL: http://dx.doi.org/10.1002/2013JC009341 Other URLs:
Ma, Hsi-Yen; Mechoso, C. Roberto; Xue, Yongkang; Xiao, Heng; Neelin, J. David; Ji, Xuan (2013). On the Connection between Continental-Scale Land Surface Processes and the Tropical Climate in a Coupled Ocean-Atmosphere-Land System, Journal of Climate, 22 (26), 9006-9025, 10.1175/JCLI-D-12-00819.1. Title: On the Connection between Continental-Scale Land Surface Processes and the Tropical Climate in a Coupled Ocean-Atmosphere-Land system Type: Journal article Publication: Journal of Climate Author(s): Ma, Hsi-Yen ; Mechoso, C. Roberto ; Xue, Yongkang ; Xiao, Heng ; Neelin, J. David ; Ji, Xuan Year: 2013 Formatted Citation: Ma, H., C. R. Mechoso, Y. Xue, H. Xiao, J. D. Neelin, and X. Ji, 2013 : On the Connection between Continental-Scale Land Surface Processes and the Tropical Climate in a Coupled Ocean-Atmosphere-Land System. J. Clim., 26 ( 22 ), 9006-9025, doi:10.1175/JCLI-D-12-00819.1 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: http://journals.ametsoc.org/doi/abs/10.1175/JCLI-D-12-00819.1 Other URLs:
Hwang, Kyeong (2013). Reproduction of sea ice coverage in the Pan-Arctic Sea using an ice-ocean coupled model. Title: Reproduction of sea frosting coverage in the Pan-Arctic Sea using an ice-ocean conjugate model Type: dissertation Publication: Author(s): Hwang, Kyeong Year: 2013 Formatted Citation: Hwang, K., 2013 : reproduction of sea ice coverage in the Pan-Arctic Sea using an ice-ocean couple model., 67 pp. Abstract: The Arctic Ocean is the region most sensitive to the effects of ball-shaped warm, and the reduction of sea methamphetamine in the Arctic Ocean affects seawater circulation and global climate. therefore, the sketch of the Arctic Ocean is very authoritative, and studies on the Arctic ocean internal-combustion engine variation based on the model are being actively carried out overseas. however, in Korea, there is no research on the Arctic Ocean. Therefore, in this composition, we tried to understand the present floor of the model by simulating ocean Arctic sea ice distribution and comparing it with observation and AOMIP exemplary results. Sea-Ice Hindcast model calculations were carried out for 33 years from 1979 to 2011 using ROMS ( Regional Ocean Modeling System ), which is a 3D ocean-sea connect exemplary. The exemplar area is 55 ° N-90 ° N latitude, 180 ° W-180 ° E, excluding the Baltic Sea and the Okhotsk Sea. The sea ice assiduity and area are more consistent with the AOMIP model in winter than in the AOMIP exemplary, but are calculated in summer and less volatilized in the East Siberian Sea and the Rapphev Sea. For the thickness of the ocean frosting, the distribution radiation pattern was reproduced like to the observations and AOMIP model results, but the midst sea ice near the Canadian islands was not reproduced well. It is considered that the ocean frost was not accumulated in the vicinity of the canadian islands because the ocean ice speed was simulated more than the observation. In addition, the oceanic heat of the Pacific and Atlantic waters did not flow well into the Arctic Ocean and quickly disappeared, affecting the sea internal-combustion engine in the East Siberian Sea, the Raphaet Sea, and the Chichic Sea. . consequently, if we reproduce thickly sea ice near the Canadian islands by improving the sea ice rink speed and improve the flux of the Pacific and Atlantic waters flowing from the Barring and Phram Strait to better reproduce the water mass distributions. Keywords: ECCO Products Used: ECCO2URL: http://kmou.dcollection.net/jsp/common/DcLoOrgPer.jsp?sItemId=000002174138 Other URLs: hypertext transfer protocol : //repository.kmou.ac.kr/bitstream ? type=link & id=8130 & url=http : //kmou.dcollection.net/jsp/common/DcLoOrgPer.jsp ? sItemId=000002174138, hypertext transfer protocol : //repository.kmou.ac.kr/bitstream/2014 .
Fenty, Ian; Heimbach, Patrick (2013). Hydrographic Preconditioning for Seasonal Sea Ice Anomalies in the Labrador Sea, Journal of Physical Oceanography, 5 (43), 863-883, 10.1175/jpo-d-12-064.1. Title: Hydrographic Preconditioning for Seasonal Sea Ice Anomalies in the Labrador Sea Type: Journal article Publication: Journal of Physical Oceanography Author(s): Fenty, Ian ; Heimbach, Patrick Year: 2013 Formatted Citation: Fenty, I., and P. Heimbach, 2013 : hydrographic Preconditioning for Seasonal Sea Ice Anomalies in the Labrador Sea. Journal of Physical Oceanography, 43 ( 5 ), 863-883, doi:10.1175/jpo-d-12-064.1 Abstract: This analyze investigates the hydrographic processes involved in setting the maximum winter sea ice ( SI ) extent in the Labrador Sea and Baffin Bay. The analysis is based on an ocean and sea ice state appraisal covering the summer-to-summer 1996/97 annual cycle. The estimate is a synthesis of in situ and satellite hydrographic and frosting data with a regional copulate 1/3 degrees ocean-sea internal-combustion engine model. SI advective processes are foremost demonstrated to be required to reproduce the note ice rink extent. With advection, the borderline ice zone ( MIZ ) location stabilizes where ice melt balances ice bulk convergence, a quasi-equilibrium discipline achieved via the convergence of ardent subtropical-origin subsurface waters into the desegregate level seaward of the MIZ. An analysis of ocean coat irrepressibility fluxes reveals a critical function of low-salinity upper ocean ( 100 meter ) anomalies for the promotion of SI offshore of the Arctic Water-Irminger Water Thermohaline Front. anomalous low-salinity waters slow the rate of airiness loss-driven mix layer deepening, shielding an advancing SI battalion from the quick subsurface waters, and are conducive to a plus coat meltwater stabilization enhancement ( MESEM ) feedback driven by SI meltwater release. The low-salinity upper-ocean hydrographic conditions in which the MESEM efficiently operates are termed sea ice-preconditioned waters ( SIPW ). The SI extent offshore of the Thermohaline Front is shown to closely correspond to the distribution of SIPW. The analysis of two extra state estimates ( 1992/93, 2003/04 ) suggests that interannual hydrographic unevenness provides a first-order explanation for SI maximum extent anomalies in the region. Keywords: adjoint, baffin-bay, boundary-layer, cover, deep convection, fluctuations, greenland ocean, model, north-atlantic circulation, upper ocean ECCO Products Used: ECCO2 ; SeaIce URL: Other URLs:
Abernathey, Ryan; Ferreira, David; Klocker, Andreas (2013). Diagnostics of isopycnal mixing in a circumpolar channel, Ocean Modelling (72), 1-16, 10.1016/j.ocemod.2013.07.004. Title: Diagnostics of isopycnal mix in a circumpolar channel Type: Journal article Publication: Ocean Modelling Author(s): Abernathey, Ryan ; Ferreira, David ; Klocker, Andreas Year: 2013 Formatted Citation: Abernathey, R., D. Ferreira, and A. Klocker, 2013 : Diagnostics of isopycnal blend in a circumpolar channel. Ocean Modelling, 72, 1-16, doi:10.1016/j.ocemod.2013.07.004 Abstract: Mesoscale eddies mix tracers along isopycnals and horizontally at the sea surface. This paper compares different methods of diagnosing eddy mixing rates in an idealize, eddy-resolving mannequin of a channel flow meant to resemble the Antarctic Circumpolar Current. The first sic of methods, the “ perfect ” diagnostics, are techniques desirable merely to numeric models, in which detail synoptic data is available. The perfect diagnostic include flux-gradient diffusivities of buoyancy, QGPV, and Ertel PV ; Nakamura effective diffusivity ; and the four-element diffusivity tensor calculated from an ensemble of passive tracers. These diagnostics reveal a reproducible picture of isopycnal mix by eddies, with a marked maximum near 1000 megabyte depth. The isopycnal diffusivity differs from the irrepressibility diffusivity, a.k.a. the Gent-McWilliams transmit coefficient, which is weaker and peaks near the surface and bed. The second set of methods are observationally “ practical ” diagnostics. They involve monitoring the go around of tracers or Lagrangian particles in ways that are plausible in the battlefield. We show how, with sufficient ensemble size, the hardheaded diagnostics agree with the perfective diagnostics in an average common sense. Some implications for eddy parameterization are discussed. Keywords: Antarctic Circumpolar Current, Eddy diffusivity, Isopycnal desegregate, Mesoscale eddies ECCO Products Used: URL: http://www.sciencedirect.com/science/article/pii/S1463500313001200 Other URLs:
Goldberg, D N; Heimbach, P (2013). Parameter and state estimation with a time-dependent adjoint marine ice sheet model, The Cryosphere, 6 (7), 1659-1678, 10.5194/tc-7-1659-2013. Title: Parameter and state estimate with a time-dependent adjoint marine ice rink tabloid model Type: Journal article Publication: The Cryosphere Author(s): Goldberg, D N ; Heimbach, P Year: 2013 Formatted Citation: Goldberg, D. N., and P. Heimbach, 2013 : parameter and country appraisal with a time-dependent adjoint marine ice rink sheet model. Cryosph., 7 ( 6 ), 1659-1678, doi:10.5194/tc-7-1659-2013 Abstract: Keywords: ECCO Products Used: URL: http://www.the-cryosphere.net/7/1659/2013/ Other URLs:
Xu, Y; Rignot, E; Fenty, Ian; Menemenlis, Dimitris; Flexas, M M (2013). Subaqueous melting of Store Glacier, west Greenland from three-dimensional, high-resolution numerical modeling and ocean observations, Geophysical Research Letters, 17 (40), 4648-4653, 10.1002/grl.50825. Title: subaqueous melt of Store Glacier, west greenland from three-dimensional, high-resolution numeric model and ocean observations Type: Journal article Publication: Geophysical Research Letters Author(s): Xu, Y ; Rignot, E ; Fenty, Ian ; Menemenlis, Dimitris ; Flexas, M M Year: 2013 Formatted Citation: Xu, Y., E. Rignot, I. Fenty, D. Menemenlis, and M. M. Flexas, 2013 : subaqueous mellow of Store Glacier, west greenland from three-dimensional, high-resolution numeral model and ocean observations. Geophys. Res. Lett., 40 ( 17 ), 4648-4653, doi:10.1002/grl.50825 Abstract: We give three-dimensional, high-resolution simulations of ice rink mellow at the calving face of Store Glacier, a tidewater glacier in West Greenland, using the Massachusetts Institute of Technology general circulation model. We compare the model ice rink thaw with an estimate derived from oceanographic data. The simulations show churning upwelling and spread of the freshwater-laden preen along the methamphetamine face and the vigorous melt of frosting at rates of meters per day. The model August 2010 melt rate of 2.00.3m/d is within uncertainties of the melt rate of 3.01.0m/d calculated from oceanographic data. Melting is greatest at depth, above the subglacial channels, causing glacier undercutting. Melt rates increase proportionately to thermal forcing raised to the office of 1.2-1.6 and to subglacial water flux raised to the power of 0.5-0.9. Therefore, in a warm climate, Store Glacier mellow by ocean may increase from both increased ocean temperature and subglacial discharge. Keywords: Greenland, acceleration, climate switch, east greenland, fjord, glaciology, hydrology, ice-sheet, ocean mold, parameterization, tidewater glaciers, waters ECCO Products Used: IceSheet URL: Other URLs:
Ponte, Aurelien L.; Cornuelle, Bruce D. (2013). Coastal numerical modelling of tides: Sensitivity to domain size and remotely generated internal tide, Ocean Modelling (62), 17-26, 10.1016/j.ocemod.2012.11.007. Title: Coastal numeric model of tides : sensitivity to domain size and remotely generated internal tide Type: Journal article Publication: Ocean Modelling Author(s): Ponte, Aurelien L. ; Cornuelle, Bruce D. Year: 2013 Formatted Citation: Ponte, A. L., and B. D. Cornuelle, 2013 : coastal numeral model of tides : sensitivity to domain size and remotely generated inner tide. Ocean Modelling, 62, 17-26, doi:10.1016/j.ocemod.2012.11.007 Abstract: Keywords: ECCO Products Used: SOSEURL: https://linkinghub.elsevier.com/retrieve/pii/S1463500312001679 Other URLs:
Qu, T D; Gao, S; Fine, R A (2013). Subduction of South Pacific Tropical Water and Its Equatorward Pathways as Shown by a Simulated Passive Tracer, Journal of Physical Oceanography, 8 (43), 1551-1565, 10.1175/jpo-d-12-0180.1. Title: Subduction of South Pacific Tropical Water and Its Equatorward Pathways as Shown by a Simulated Passive Tracer Type: Journal article Publication: Journal of Physical Oceanography Author(s): Qu, T D ; Gao, S ; Fine, R A Year: 2013 Formatted Citation: Qu, T. D., S. Gao, and R. A. Fine, 2013 : subduction of South Pacific Tropical Water and Its Equatorward Pathways as Shown by a Simulated Passive Tracer. Journal of Physical Oceanography, 43 ( 8 ), 1551-1565, doi:10.1175/jpo-d-12-0180.1 Abstract: This study investigates the subduction of South Pacific Tropical Water ( SPTW ) and its equatorward pathways using a simulated passive tracer of the consortium Estimating the Circulation & Climate of the Ocean ( ECCO ). The results show that approximately 5.8 Sv ( 1 Sv 10 ( 6 ) molarity ( 3 ) second ( -1 ) ) of the SPTW is formed in the subtropical South Pacific Ocean within the density range between 24.0 and 25.0 kg m ( -3 ), of which about 87 % is due to erect pump and 13 % is due to lateral generalization, comparing reasonably well with estimates from climatological data. once subducted, most SPTW spreads in the subtropical South Pacific. Because of the presence of mix, some dowry of the water is transformed, and its tracer-weighted density steadily increases from an initial value of 24.4 to about 25.0 kilogram thousand ( -3 ) after 13 years of consolidation. approximately 42 % of the water makes its way into the equatorial Pacific, either through the western limit or home nerve pathway. The two equatorward pathways are basically of peer importance. A large ( alike to 70 % ) part of the SPTW entering the equatorial region resurfaces in the central equatorial Pacific. The potential impacts of the resurfacing SPTW on the equatorial thermocline and surface stratification are discussed. Keywords: Ocean circulation, Ocean dynamics, adjoint, climatology, displacements, formation rates, model, ocean circulation, origin, project, subtropical subaqueous, warm pool ECCO Products Used: ECCO-KFS URL: Other URLs:
Borstad, C. P.; Rignot, E.; Mouginot, J.; Schodlok, M. P. (2013). Creep deformation and buttressing capacity of damaged ice shelves: theory and application to Larsen C ice shelf, The Cryosphere, 6 (7), 1931-1947, 10.5194/tc-7-1931-2013. Title: Creep deformation and buttressing capacity of damaged ice shelves : theory and application to Larsen C internal-combustion engine ledge Type: Journal article Publication: The Cryosphere Author(s): Borstad, C. P. ; Rignot, E. ; Mouginot, J. ; Schodlok, M. P. Year: 2013 Formatted Citation: Borstad, C. P., E. Rignot, J. Mouginot, and M. P. Schodlok, 2013 : sneak contortion and buttressing capacity of damaged ice shelves : theory and application to Larsen C ice shelf. Cryosph., 7 ( 6 ), 1931-1947, doi:10.5194/tc-7-1931-2013 Abstract: Around the margin of Antarctica, much of the ice sheet discharges to the ocean through floating frosting shelves. The buttress provided by ice shelves is critical for modulating the flux density of frosting into the ocean, and the soon detect cutting of internal-combustion engine shelves is believed to be reducing their buttress capacity and contributing to the acceleration and thin of the establish ice tabloid. however, relatively short attention has been paid to the function that fractures play in the ability of frost shelves to sustain and transmit buttress stresses. here, we present a modern framework for quantifying the character that fractures play in the crawl distortion and buttressing capacity of ice shelves. We apply principles of continuum damage mechanics to derive a newly analytic sexual intercourse for the fawn of an internal-combustion engine shelf that accounts for the softening charm of fractures on longitudinal deformation using a state of matter damage variable. We use this new analytic relative, combined with a temperature calculation for the ice, to partition an inverse method solution for frosting shelf inflexibility into freelancer solutions for softening damage and stabilizing backstress. Using this new overture, field and remote sensing data can be utilized to monitor the structural integrity of ice shelves, their ability to buttress the flow of ice rink at the grounding cable, and thus their collateral contribution to ice sheet mass balance and ball-shaped sea level. We apply this proficiency to the Larsen C ice shelf using outside sensing and Operation IceBridge data, finding damage in areas with know crevasses and rifts. Backstress is highest near the ground argumentation and upriver of internal-combustion engine rises, in agreement with patterns observed on other ice rink shelves. The frosting in contact with the Bawden frost rebel is weakened by fractures, and extra damage or thin in this area could diminish the backstress transmitted upriver. We model the consequences for the frosting ledge if it loses contact with this small ice rise, finding that menstruation speeds would increase by 25 % or more over an area the size of the former Larsen B methamphetamine ledge. Such a perturbation could potentially destabilize the northern depart of Larsen C along preexistent lines of failing, highlighting the importance of the feedback between buttressing and fracturing in an frost shelf. Keywords: ECCO Products Used: ECCO2 ; IceSheetURL: https://www.the-cryosphere.net/7/1931/2013/ Other URLs:
Manizza, M; Follows, Michael J.; Dutkiewicz, Stephanie; Menemenlis, Dimitris; Hill, C N; Key, R M (2013). Changes in the Arctic Ocean CO 2 sink (1996-2007): A regional model analysis, Global Biogeochemical Cycles, 4 (27), 1108-1118, 10.1002/2012GB004491. Title: Changes in the Arctic Ocean CO 2 sink ( 1996-2007 ) : A regional model analysis Type: Journal article Publication: Global Biogeochemical Cycles Author(s): Manizza, M ; Follows, Michael J. ; Dutkiewicz, Stephanie ; Menemenlis, Dimitris ; Hill, C N ; Key, R M Year: 2013 Formatted Citation: Manizza, M., M. J. Follows, S. Dutkiewicz, D. Menemenlis, C. N. Hill, and R. M. Key, 2013 : Changes in the Arctic Ocean CO 2 sink ( 1996-2007 ) : A regional model analysis. Global Biogeochemical Cycles, 27 ( 4 ), 1108-1118, doi:10.1002/2012GB004491 Abstract: The rapid holocene decline of Arctic Ocean sea frost area increases the blend of solar radiation sickness available for primary production and the area of assailable water for air-sea gasoline exchange. We use a regional physical-biogeochemical mannequin of the Arctic Ocean, forced by the National Centers for Environmental Prediction/National Center for Atmospheric Research atmospheric reanalysis, to evaluate the mean contemporary CO2 sink and its temporal development. During the 1996-2007 period, the model suggests that the Arctic modal sea surface temperature warmed by 0.04°C a−1, that ocean ice area decreased by ∼0.1 × 106 km2 a−1, and that the biological drawdown of dissolve inorganic carbon paper increased. The imitate 1996-2007 time-mean Arctic Ocean CO2 sinkhole is 58 ± 6 Tg C a−1. The increase in ice-free ocean area and attendant carbon paper drawdown during this menstruation enhances the CO2 sink by ∼1.4 Tg C a−1, consistent with estimates based on extrapolations of sparse data. A regional analysis suggests that during the 1996-2007 period, the shelf regions of the Laptev, East Siberian, Chukchi, and Beaufort Seas experienced an increase in the efficiency of their biological pump due to decreased sea ice area, specially during the 2004-2007 period, coherent with independently published estimates of primary production. In contrast, the CO2 sink in the Barents Sea is reduced during the 2004-2007 time period due to a dominant control by warming and decreasing solubility. frankincense, the effect of decreasing sea ice sphere and increasing sea surface temperature partially cancel, though the erstwhile is dominant. Keywords: 0428 Carbon cycle, 4255 Numerical model, 4806 Carbon cycle, Arctic Ocean, ocean productivity, sea frost ECCO Products Used: ECCO2URL: http://dx.doi.org/10.1002/2012GB004491 Other URLs: hypertext transfer protocol : //doi.wiley.com/10.1002/2012GB004491
Zhai, Fangguo; Hu, Dunxin; Wang, Qingye (2013). Study on the seasonal variability of the Halmahera Eddy, Marine Sciences, 11 (37), 85-94. Title: Study on the seasonal worker unevenness of the Halmahera Eddy Type: Journal article Publication: Marine Sciences Author(s): Zhai, Fangguo ; Hu, Dunxin ; Wang, Qingye Year: 2013 Formatted Citation: Zhai, F., D. Hu, and Q. Wang, 2013 : report on the seasonal unevenness of the Halmahera Eddy. Marine Sciences, 37 ( 11 ), 85-94, hypertext transfer protocol : //qdhys.ijournal.cn/hykxen/ch/reader/create_pdf.aspx ? file_no=20131115 Abstract: In this paper, the seasonal unevenness of the Halmahera Eddy ( HE ) in the upper 50 megabyte was investigated by using oceanic assimilation data of ECCO2 from January 1992 to November 2006. The results show that the HE first gear appears around May, peaks in July, and dies out in March and April of the adopt year, which are chiefly resulted from the New Guinea Coastal Current ( NGCC ) seasonality driven by monsoon. The NGCC flows northwestward from April to November, while southeastward from December to following year February. The HE begins to form and intensify with the strengthen of the northwest NGCC, but disintegrate and disappear with the sabotage and re- verse of the northwest NGCC. In summer, the Mindanao Current strengthens and enhances the HE. Keywords: Halmahera Eddy, New Guinea coastal current, seasonal variability ECCO Products Used: ECCO2URL: http://qdhys.ijournal.cn/hykxen/ch/reader/create_pdf.aspx?file_no=20131115 Other URLs:
Valty, Pierre; De Viron, Olivier; Panet, Isabelle; Van Camp, Michel; Legrand, Julitte (2013). Assessing the precision in loading estimates by geodetic techniques in Southern Europe, Geophysical Journal International, 3 (194), 1441-1454, 10.1093/gji/ggt173. Title: Assessing the preciseness in loading estimates by geodetic techniques in Southern Europe Type: Journal article Publication: Geophysical Journal International Author(s): Valty, Pierre ; De Viron, Olivier ; Panet, Isabelle ; Van Camp, Michel ; Legrand, Julitte Year: 2013 Formatted Citation: Valty, P., O. De Viron, I. Panet, M. Van Camp, and J. Legrand, 2013 : Assessing the preciseness in loading estimates by geodetic techniques in Southern Europe. Geophysical Journal International, 194 ( 3 ), 1441-1454, doi:10.1093/gji/ggt173 Abstract: This paper investigates the preciseness of the estimate of geophysical fluid load distortion computed from GRACE quad gravity, GPS erect supplanting and geophysical fluids models [ Global Circulation Models ( GCMs ) for ocean, atmosphere and hydrology ], using the three-cornered hat method acting. This method allows the estimate of the discrepancy of the errors of each technique, when the like quantity is monitored by three instruments with independent errors. Applied on a network of stations, several points of horizon can be considered : the technique level ( in order to determine the error of each proficiency : GRACE, GPS and GCMs ), the solution level ( allowing to compare the preciseness of the lapp proficiency when different strategies/models are used ), and the station level ( in decree to emphasize local anesthetic anomalies and geographic patterns ). In especial, our results show a preciseness of the loading upright supplanting at the level of 1 millimeter when using GRACE or the fluid models, and of 2 mm using GPS. We do not find significant differences between the preciseness of different solutions of the like techniques, even when there are strong differences in the data action. Keywords: Europe, Global variety from geodesy, Space geodetic surveys, Time variable gravity, Time-series analysis ECCO Products Used: ECCO-KFS URL: Other URLs:
Wunsch, Carl (2013). Baroclinic Motions and Energetics as Measured by Altimeters, Journal of Atmospheric and Oceanic Technology, 1 (30), 140-150, 10.1175/JTECH-D-12-00035.1. Title: Baroclinic Motions and Energetics as Measured by Altimeters Type: Journal article Publication: Journal of Atmospheric and Oceanic Technology Author(s): Wunsch, Carl Year: 2013 Formatted Citation: Wunsch, C., 2013 : Baroclinic Motions and Energetics as Measured by Altimeters. Journal of Atmospheric and Oceanic Technology, 30 ( 1 ), 140-150, doi:10.1175/JTECH-D-12-00035.1 Abstract: Small come on displacements appearing in tide gauge and altimetric records are used to detect hydrostatic baroclinic modes in the ocean. Those deflections are a little fraction of the inside isopycnal vertical displacements and are dependent directly upon the in situ stratification. conversion of surface altitude to interior amplitudes and energies encounters significant spatial and seasonal shifts that need to be accounted for in quantitative manipulation. This technical article analyzes the global-scale spatial variations in the relationship between surface deflections and interior motions. alike considerations make it possible to use altimetric data to estimate the deep inside temperature variability as a function of position, calculations having a strong determine on abysmal course determination in the presence of eddies. Keywords: Baroclinic mod, Eddies, Satellite observations, Tides ECCO Products Used: URL: http://journals.ametsoc.org/doi/abs/10.1175/JTECH-D-12-00035.1 Other URLs:
Peng, P; Zhu, Y Z; Zhong, M; Yan, H M; Kang, K X (2013). Annual sea level fingerprint caused by global water mass transport, Chinese Journal of Geophysics-Chinese Edition, 3 (56), 824-833, 10.6038/cjg20130311. Title: Annual sea degree fingerprint caused by ball-shaped water system mass transportation Type: Journal article Publication: Chinese Journal of Geophysics-Chinese edition Author(s): Peng, P ; Zhu, Y Z ; Zhong, M ; Yan, H M ; Kang, K X Year: 2013 Formatted Citation: Peng, P., Y. Z. Zhu, M. Zhong, H. M. Yan, and K. X. Kang, 2013 : annual sea level fingermark caused by global water mass conveyance. chinese Journal of Geophysics-Chinese Edition, 56 ( 3 ), 824-833, doi:10.6038/cjg20130311 Abstract: The bicycle of urine reserves on earth is by and large measured by the shock of global mean low-lying. The effects of water exchange among Atmosphere, Hydrology and Ocean ( AHO ) are always seen as a uniform thin layer. But in fact, it has been demonstrated that the mass exchange among AHO will result in a highly inhomogeneous patterns of ocean flush change due to the crust deformation and self-attraction loading ( SAL ) effect called low-lying fingerprints. broadly, ocean exemplary obeys the Boussinesq hypothesis that bulk conserves while ignoring the SAL effect. here we analyze the SAL effect of AHO during 2003 and 2010 through solving the sea floor function. The main results are : ( 1 ) while considering SAL effect, the spatial patterns in the annual terms of sea level changes vary significantly specially near coastal areas and at low-latitude regions. The maximal amplitude can reach 1. 3 exchangeable to 19 millimeter. ( 2 ) At annual time-scale, the impact of hydrology is maximal, and less is atmosphere and ocean, while SAL consequence caused by ocean has the most building complex phase spatial distribution. ( 3 ) When SAL impression is included in ocean ECCO OBP model, it can explain more 5. 3 % variability reduction from a ball-shaped set of tide gauges. Keywords: Earth, GRACE, Ocean bed atmospheric pressure, Sea charge, Self-attraction, Tide gauges, equation, hydrometry, pressure, reevaluation, rotating ground, rotation effect ECCO Products Used: URL: Other URLs:
Sturges, Wilton; Bozec, Alexandra (2013). A Puzzling Disagreement between Observations and Numerical Models in the Central Gulf of Mexico, Journal of Physical Oceanography, 12 (43), 2673-2681, 10.1175/JPO-D-13-081.1. Title: A Puzzling discrepancy between Observations and Numerical Models in the Central Gulf of Mexico Type: Journal article Publication: Journal of Physical Oceanography Author(s): Sturges, Wilton ; Bozec, Alexandra Year: 2013 Formatted Citation: Sturges, W., and A. Bozec, 2013 : A Puzzling discrepancy between Observations and Numerical Models in the Central Gulf of Mexico. Journal of Physical Oceanography, 43 ( 12 ), 2673-2681, doi:10.1175/JPO-D-13-081.1 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/abs/10.1175/JPO-D-13-081.1 Other URLs:
Gopalakrishnan, Ganesh; Cornuelle, Bruce D.; Hoteit, Ibrahim (2013). Adjoint sensitivity studies of loop current and eddy shedding in the Gulf of Mexico, Journal of Geophysical Research: Oceans, 7 (118), 3315-3335, 10.1002/jgrc.20240. Title: Adjoint sensitivity studies of loop current and eddy shedding in the Gulf of Mexico Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Gopalakrishnan, Ganesh ; Cornuelle, Bruce D. ; Hoteit, Ibrahim Year: 2013 Formatted Citation: Gopalakrishnan, G., B. D. Cornuelle, and I. Hoteit, 2013 : Adjoint sensitivity studies of closed circuit current and eddy shedding in the Gulf of Mexico. J. Geophys. Res. Ocean., 118 ( 7 ), 3315-3335, doi:10.1002/jgrc.20240 Abstract: Keywords: ECCO Products Used: SOSE ; adjointURL: http://doi.wiley.com/10.1002/jgrc.20240 Other URLs:
Song, Hajoon; Hoteit, Ibrahim; Cornuelle, Bruce D.; Luo, Xiaodong; Subramanian, Aneesh C. (2013). An Adjoint-Based Adaptive Ensemble Kalman Filter, Monthly Weather Review, 10.1175/MWR-D-12-00244.1. Title: An Adjoint-Based Adaptive Ensemble Kalman Filter Type: Journal article Publication: Monthly Weather Review Author(s): Song, Hajoon ; Hoteit, Ibrahim ; Cornuelle, Bruce D. ; Luo, Xiaodong ; Subramanian, Aneesh C. Year: 2013 Formatted Citation: Song, H., I. Hoteit, B. D. Cornuelle, X. Luo, and A. C. Subramanian, 2013 : An Adjoint-Based Adaptive Ensemble Kalman Filter. Monthly Weather Review, doi:10.1175/MWR-D-12-00244.1 Abstract: A new hybrid ensemble Kalman filter/four-dimensional variational data assimilation ( EnKF/4D-VAR ) border on is introduced to mitigate background covariance limitations in the EnKF. The ferment is based on the adaptive EnKF ( AEnKF ) method, which bears a strong resemblance to the hybrid EnKF/three-dimensional variational data assimilation ( 3D-VAR ) method. In the AEnKF, the representativeness of the EnKF corps de ballet is regularly enhanced with new members generated after binding projection of the EnKF analysis residuals to state distance using a 3D-VAR [ or optimum interpolation ( OI ) ] scheme with a preselected background covariance matrix. The mind here is to reformulate the transformation of the residuals as a 4D-VAR problem, constraining the new extremity with model dynamics and the previous observations. This should provide more information for the estimate of the fresh member and reduce addiction of the AEnKF on the assume stationary background covariance matrix. This is done by integrating the analysis residuals backward in time with the adjoint model. numerical experiments are performed with the Lorenz-96 model under different scenarios to test the fresh approach and to evaluate its performance with deference to the EnKF and the hybrid EnKF/3D-VAR. The newfangled method acting leads to the least root-mean-square appraisal errors angstrom retentive as the analogue assumption guaranteeing the stability of the adjoint mannequin holds. It is besides found to be less sensitive to choices of the assimilation system inputs and parameters. Keywords: ECCO Products Used: SOSE URL: Other URLs:
Clayton, Sophie (2013). Physical influences on phytoplankton ecology : models and observations. Title: Physical influences on phytoplankton ecology : models and observations Type: thesis Publication: Author(s): Clayton, Sophie Year: 2013 Formatted Citation: Clayton, S., 2013 : forcible influences on phytoplankton ecology : models and observations. hypertext transfer protocol : //hdl.handle.net/1721.1/82320. Abstract: The physical environment in the oceans dictates not merely how phytoplankton cells are dispersed and their populations intermingled, but besides mediates the supply of nutrients to the surface shuffle level. In this dissertation I explore both of these aspects of the interaction between phytoplankton ecology and ocean physics, and have approached this topic in two distinct but complementary color ways, working with a global ocean ecosystem model, and collecting data at sea. In the beginning half of the thesis, I examine the role of mesoscale physical features in shaping phytoplankton community structure and influencing rates of chief production. I compare the output of a complex marine ecosystem model coupled to coarse resolution and eddy-permitting physical models. explicitly resolving eddies resulted in marked regional variations in primary production, zooplankton and phytoplankton biomass. The lapp phytoplankton phenotypes persisted in both cases, and were dominant in the same regions. Global phytoplankton diverseness was unaltered. however, levels of local phytoplankton diversity were markedly different, with a big addition in local anesthetic diversity in the higher solution model. Increased diversity could be attributed to a combination of enhance dispersion, environmental variability and food supply in the higher settlement model. Diversity “ hotspots ” associated with westerly boundary currents and coastal upwelling zones are sustained through a combination of all of these factors. In the second half of the thesis I describe the results of a all right scale ecological and biogeochemical survey of the Kuroshio Extension Front. I found fine scale patterns in physical, chemical and biological properties that can be linked back to both the boastfully scale horizontal and smaller scale erect forcible dynamics of the discipline region. A target genomic analysis of samples focused on the ecology of the picoeukaryote Ostreococcus clade distributions strongly supports the model derived hypotheses about the mechanisms supporting diverseness hotspots. strikingly, two discrete clades of Ostreococcus coincide in more than half of the samples. A “ hot spot ” of Ostreococcus diverseness appears to be supported by a confluence of urine masses containing either clade, adenine well as a local alimentary supply at the front and the mesoscale unevenness of the region. Keywords: ECCO Products Used: ECCO-V2 ; ECCO2URL: http://hdl.handle.net/1721.1/82320 Other URLs:
Huard, David; Tremblay, Bruno (2013). WWF Last Ice Area. Title: WWF final Ice Area Type: Report Publication: Author(s): Huard, David ; Tremblay, Bruno Year: 2013 Formatted Citation: Huard, D., and B. Tremblay, 2013 : WWF last Ice Area., Montreal, Canada, 36 pp. hypertext transfer protocol : //awsassets.panda.org/downloads/projected_arctic_sea_ice_conditions___full_english.pdf. Abstract: The purpose of this project is to illustrate the destine of Arctic sea ice rink over the following decades. Part A of the project looks at results from an ensemble of ball-shaped climate model projec- tions. The objective of Part A is to explore the versatile pathways of future frosting personnel casualty as simulated by different climate models driven by two radiative forcing scenarios. The im- treaty of climate change on Arctic conditions is diagnosed through sea ice concentration, sea ice thickness and snow depth over frost. Part B completes the picture by running a high-resolution ( 18km ) regional ocean and ice model, providing finer spatial details of methamphetamine conditions projected by the GFDL Climate Model version 3 under the business-as-usual RCP8.5 force scenario. Keywords: ECCO Products Used: ECCO2URL: http://awsassets.panda.org/downloads/projected_arctic_sea_ice_conditions___full_english.pdf Other URLs:
Roquet, Fabien; Wunsch, Carl; Forget, Gael; Heimbach, Patrick; Guinet, Christophe; Reverdin, Gilles; Charrassin, Jean-Benoit; Bailleul, Frederic; Costa, Daniel P; Huckstadt, Luis A; Goetz, Kimberly T; Kovacs, Kit M; Lydersen, Christian; Biuw, Martin; Nøst, Ole A; Bornemann, Horst; Ploetz, Joachim; Bester, Marthan N; McIntyre, Trevor; Muelbert, Monica C; Hindell, Mark A; McMahon, Clive R; Williams, Guy; Harcourt, Robert; Field, Iain C; Chafik, Leon; Nicholls, Keith W; Boehme, Lars; Fedak, Mike A (2013). Estimates of the Southern Ocean general circulation improved by animal-borne instruments, Geophysical Research Letters, 23 (40), 6176-6180, 10.1002/2013GL058304. Title: Estimates of the Southern Ocean general circulation improved by animal-borne instruments Type: Journal article Publication: Geophysical Research Letters Author(s): Roquet, Fabien ; Wunsch, Carl ; Forget, Gael ; Heimbach, Patrick ; Guinet, Christophe ; Reverdin, Gilles ; Charrassin, Jean-Benoit ; Bailleul, Frederic ; Costa, Daniel P ; Huckstadt, Luis A ; Goetz, Kimberly T ; Kovacs, Kit M ; Lydersen, Christian ; Biuw, Martin ; Nøst, Ole A ; Bornemann, Horst ; Ploetz, Joachim ; Bester, Marthan N ; McIntyre, Trevor ; Muelbert, Monica C ; Hindell, Mark A ; McMahon, Clive R ; Williams, Guy ; Harcourt, Robert ; Field, Iain C ; Chafik, Leon ; Nicholls, Keith W ; Boehme, Lars ; Fedak, Mike A Year: 2013 Formatted Citation: Roquet, F. and Coauthors, 2013 : Estimates of the Southern Ocean general circulation improved by animal-borne instruments. Geophys. Res. Lett., 40 ( 23 ), 6176-6180, doi:10.1002/2013GL058304 Abstract: Over the last decade, respective hundred seals have been equipped with conductivity-temperature-depth sensors in the southerly Ocean for both biological and forcible oceanographic studies. A calibrated collection of seal-derived hydrographic data is nowadays available, consisting of more than 165,000 profiles. The value of these hydrographic data within the existing Southern Ocean observing system is demonstrated herein by conducting two express estimate experiments, differing entirely in the habit or not of seal data to constrain the system. Including seal-derived data well modifies the estimate surface mixed-layer properties and circulation patterns within and south of the Antarctic Circumpolar Current. agreement with independent satellite observations of sea ice concentration is improved, particularly along the East Antarctic ledge. Instrumented animals efficiently reduce a critical experimental break, and their contribution to monitoring polar climate unevenness will continue to grow as data accuracy and spatial coverage addition. Keywords: 4207 Arctic and Antarctic oceanography, 4262 Ocean observing systems, 4283 Water masses, 4594 Instruments and techniques, 4858 Population dynamics and ecology, Southern Ocean, animal-borne sample distribution, hydrography, state estimate ECCO Products Used: URL: http://dx.doi.org/10.1002/2013GL058304 Other URLs:
Landschützer, Peter; Gruber, N.; Bakker, D. C. E.; Schuster, U.; Nakaoka, S.; Payne, M. R.; Sasse, T. P.; Zeng, J. (2013). A neural network-based estimate of the seasonal to inter-annual variability of the Atlantic Ocean carbon sink, Biogeosciences, 11 (10), 7793-7815, 10.5194/bg-10-7793-2013. Title: A neural network-based estimate of the seasonal worker to inter-annual unevenness of the Atlantic Ocean carbon sink Type: Journal article Publication: Biogeosciences Author(s): Landschützer, Peter ; Gruber, N. ; Bakker, D. C. E. ; Schuster, U. ; Nakaoka, S. ; Payne, M. R. ; Sasse, T. P. ; Zeng, J. Year: 2013 Formatted Citation: Landschützer, P., N. Gruber, D. C. E. Bakker, U. Schuster, S. Nakaoka, M. R. Payne, T. P. Sasse, and J. Zeng, 2013 : A neural network-based estimate of the seasonal to inter-annual variability of the Atlantic Ocean carbon slump. Biogeosciences, 10 ( 11 ), 7793-7815, doi:10.5194/bg-10-7793-2013 Abstract: The Atlantic Ocean is one of the most important sinks for atmospheric carbon paper dioxide ( CO2 ), but this bury has been shown to vary substantially in time. hera we use surface ocean CO2 observations to estimate this slump and the temporal variability from 1998 through 2007 in the Atlantic Ocean. We benefit from ( one ) a continuous improvement of the observations, i.e. the Surface Ocean CO2 Atlas ( SOCAT ) v1.5 database and ( two ) a newly developed proficiency to interpolate the observations in space and clock. In particular, we use a two-step neural net approach to reconstruct basin-wide monthly maps of the ocean surface partial derivative pressure of CO2 ( pCO2 ) at a resolution of 1° × 1°. From those, we compute the air-sea CO2 flux maps using a standard boast switch over parameterization and high-resolution wind speeds. The neural networks fit the note pCO2 data with a etymon hateful square mistake ( RMSE ) of about 10 μatm and with about no bias. A check against mugwump time-series data and new data from SOCAT v2 reveals a larger RMSE of 22.8 μatm for the stallion Atlantic Ocean, which decreases to 16.3 μatm for data south of 40° N. We estimate a decadal mean consumption flux density of −0.45 ± 0.15 Pg C yr−1 for the Atlantic between 44° S and 79° N, representing the union of a potent consumption north of 18° N ( −0.39 ± 0.10 Pg C yr−1 ), outgassing in the tropics ( 18° S-18° N, 0.11 ± 0.07 Pg C yr−1 ), and uptake in the subtropical/temperate South Atlantic south of 18° S ( −0.16 ± 0.06 Pg C yr−1 ), consistent with late studies. The strongest seasonal worker unevenness of the CO2 flux occurs in the temperature-driven subtropical North Atlantic, with consumption in winter and outgassing in summer. The seasonal cycle is antiphased in the subpolar latitudes relative to the subtropics largely as a resultant role of the biologically driven winter-to-summer drawdown of CO2. Over the 10 year analysis period ( 1998 through 2007 ), sea surface pCO2 increased faster than that of the standard atmosphere in large areas poleward of 40° N, while in other regions of the North Atlantic the ocean surface pCO2 increased at a slower rate, resulting in a scantily changing Atlantic carbon sink north of the Equator ( −0.01 ± 0.02 Pg C yr−1 decade−1 ). Surface ocean pCO2 increased at a slower rate relative to atmospheric CO2 over most of the Atlantic south of the Equator, leading to a substantial drift toward a stronger CO2 sink for the entire South Atlantic ( −0.14 ± 0.02 Pg C yr−1 decade−1 ). In line to the 10 year trends, the Atlantic Ocean carbon sink varies relatively little on inter-annual timescales ( ±0.04 Pg C yr−1 ; 1 σ ). Keywords: ECCO Products Used: ECCO2URL: https://www.biogeosciences.net/10/7793/2013/ Other URLs:
Cougnon, E. A.; Galton-Fenzi, B. K.; Meijers, A. J. S.; Legrésy, B. (2013). Modeling interannual dense shelf water export in the region of the Mertz Glacier Tongue (1992-2007), Journal of Geophysical Research: Oceans, 10 (118), 5858-5872, 10.1002/2013JC008790. Title: Modeling interannual dense shelf water export in the region of the Mertz Glacier Tongue ( 1992-2007 ) Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Cougnon, E. A. ; Galton-Fenzi, B. K. ; Meijers, A. J. S. ; Legrésy, B. Year: 2013 Formatted Citation: Cougnon, E. A., B. K. Galton-Fenzi, A. J. S. Meijers, and B. Legrésy, 2013 : Modeling interannual dense shelf water export in the area of the Mertz Glacier Tongue ( 1992-2007 ). J. Geophys. Res. Ocean., 118 ( 10 ), 5858-5872, doi:10.1002/2013JC008790 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1002/2013JC008790 Other URLs:
Chen, Ru (2013). Energy Pathways and Structures of Oceanic Eddies from the ECCO2 State Estimate and Simplified Models. Title: Energy Pathways and Structures of Oceanic Eddies from the ECCO2 State Estimate and Simplified Models Type: thesis Publication: Author(s): Chen, Ru Year: 2013 Formatted Citation: Chen, R., 2013 : Energy Pathways and Structures of Oceanic Eddies from the ECCO2 State Estimate and Simplified Models. MIT-WHOI joint Program, Ph.D. hypertext transfer protocol : //hdl.handle.net/1721.1/79154. Abstract: Keywords: ECCO Products Used: ECCO2URL: http://hdl.handle.net/1721.1/79154 Other URLs:
Clayton, Sophie; Dutkiewicz, Stephanie; Jahn, Oliver; Follows, Michael J. (2013). Dispersal, eddies, and the diversity of marine phytoplankton, Limnology and Oceanography: Fluids and Environments, 1 (3), 182-197, 10.1215/21573689-2373515. Title: Dispersal, eddies, and the diverseness of marine phytoplankton Type: Journal article Publication: Limnology and Oceanography : Fluids and Environments Author(s): Clayton, Sophie ; Dutkiewicz, Stephanie ; Jahn, Oliver ; Follows, Michael J. Year: 2013 Formatted Citation: Clayton, S., S. Dutkiewicz, O. Jahn, and M. J. Follows, 2013 : Dispersal, eddies, and the diversity of marine phytoplankton. Limnology and Oceanography : Fluids and Environments, 3 ( 1 ), 182-197, doi:10.1215/21573689-2373515 Abstract: We examined the role of forcible dispersion in regulating patterns of diverseness of marine phytoplankton in the context of ball-shaped ocean simulations at eddy-permitting and coarse resolutions. Swifter current speeds, faster dispersion, and increased environmental variability in the higher-resolution model enhanced local diversity about everywhere. In the numeral simulations, each resolved phytoplankton type was characterized as “ locally adapted ” at any geographic localization ( i.e., having web local biological product and physical export ) or “ immigrant ” ( i.e., net local biological loss but a population sustained by immigration via physical conveyance ). Immigrants accounted for a higher fraction of the total diversity in the equatorial and subtropical regions, where the ejection timescale is farseeing proportional to the physical ecstasy between “ provinces. ” Hotspots of diverseness were associated with western boundary currents and coastal upwelling regions. The former had high locally adapted diverseness within the core of the current system, maintained by confluence of upstream populations and the generalization of nutrient resources, angstrom well as environmental variability associated with mesoscale eddies. downstream of potent food sources, convergence of populations led to immigrant-dominated diversity. The numeric simulations provide testable predictions of patterns in diverseness and hypotheses regarding the mechanisms that control them. molecular approaches to characterizing diversity in microbial populations will provide a mean to test these hypotheses. Keywords: biodiversity, hotspots, plankton ECCO Products Used: ECCO-V2 ; ECCO2URL: http://dx.doi.org/10.1215/21573689-2373515 Other URLs:
Fenty, Ian; Heimbach, Patrick (2013). Coupled Sea Ice-Ocean-State Estimation in the Labrador Sea and Baffin Bay, Journal of Physical Oceanography, 5 (43), 884-904, 10.1175/jpo-d-12-065.1. Title: Coupled Sea Ice-Ocean-State Estimation in the Labrador Sea and Baffin Bay Type: Journal article Publication: Journal of Physical Oceanography Author(s): Fenty, Ian ; Heimbach, Patrick Year: 2013 Formatted Citation: Fenty, I., and P. Heimbach, 2013 : Coupled Sea Ice-Ocean-State Estimation in the Labrador Sea and Baffin Bay. Journal of Physical Oceanography, 43 ( 5 ), 884-904, doi:10.1175/jpo-d-12-065.1 Abstract: Sea methamphetamine unevenness in the Labrador Sea is of climatic matter to because of its kinship to deep convection, mode-water formation, and the North Atlantic atmospheric circulation. Historically, quantifying the relationship between sea frost and ocean unevenness has been unmanageable because of in situ observation dearth and technical challenges associated with synthesizing observations with numeric models. hera the relationship between ice and ocean variability is explored by analyzing new estimates of the ocean-ice state in the northwest North Atlantic. The estimates are syntheses of in situ and satellite hydrographic and ice data with a regional 1/3 degrees coupled ocean-sea internal-combustion engine model. The synthesis of sea internal-combustion engine data is achieved with an improved adjoint of a thermodynamic internal-combustion engine model. Model and data are made consistent, in a least squares feel, by iteratively adjusting command variables, including ocean initial and lateral boundary conditions and the atmospheric state, to minimize an uncertainty-weighted model-data misfit monetary value function. The utility of the express calculate is demonstrated in an psychoanalysis of energy and irrepressibility budgets in the bare ice zone ( MIZ ). In mid-march the arrangement achieves a department of state of quasi-equilibrium during which net ice increase and dissolve approaches zero ; newly formed frosting diverges from coastal areas and converges via scent and ocean storm in the MIZ. The convergence of methamphetamine mass in the MIZ is ablated chiefly by disruptive ocean-ice heat content fluxes. The elementary informant of the heat content required for confirm MIZ ice ablation is the reasonable heat reservoir of the subtropical-origin subsurface waters. Keywords: breed, deep convection, eddies, fresh-water, greenland, heat fluxes, model, north-atlantic sst, ocean, westerly boundary currents, winter circulation ECCO Products Used: ECCO2 ; SeaIce URL: Other URLs:
Gopalakrishnan, Ganesh; Cornuelle, Bruce; Gawarkiewicz, Glen; McClean, Julie (2013). Structure and Evolution of the Cold Dome off Northeastern Taiwan: A Numerical Study, Oceanography, 10.5670/oceanog.2013.06. Title: Structure and Evolution of the Cold Dome off Northeastern Taiwan : A Numerical Study Type: Journal article Publication: oceanography Author(s): Gopalakrishnan, Ganesh ; Cornuelle, Bruce ; Gawarkiewicz, Glen ; McClean, Julie Year: 2013 Formatted Citation: Gopalakrishnan, G., B. Cornuelle, G. Gawarkiewicz, and J. McClean, 2013 : structure and Evolution of the Cold Dome off Northeastern Taiwan : A Numerical Study. Oceanography, doi:10.5670/oceanog.2013.06 Abstract: numerous experimental and modeling studies of ocean circulation surrounding Taiwan have reported occurrences of cold water and doming of isotherms ( called the cold dome ) that resultant role in the formation of coastal upwelling on the northeastern Taiwan ledge. We use a high-resolution ( 1/24° ) ocean exemplar based on the Massachusetts Institute of Technology general circulation model to study the development of this distinct shelf-slope circulation phenomenon. We performed a number of model simulations spanning a five-year period ( 2004-2008 ) using realistic atmospheric pull and initial and open limit conditions. The model solutions were compared with satellite measurements of sea surface acme ( SSH ), sea surface temperature ( SST ), and diachronic temperature and salt observations. The model showed a realistically shape cold dome with a diameter of ~ 100 kilometer and temperature of ~ 3°C below the ambient shelf waters at 50 thousand astuteness. The occurrences of fake cold dome events appeared to be connected with the seasonal worker unevenness of the Kuroshio Current. The model simulations showed more upwelling events during give and summer when the core of the Kuroshio tends to migrate away from the east coast of Taiwan, compared to fall and winter when the core of the Kuroshio is by and large found closer to the east seashore of Taiwan. The model besides reproduced weak cyclonic circulation associated with the upwelling off northeastern Taiwan. We analyzed the spatio-temporal unevenness of the cold dome using the model solution as a proxy and designed a “ cold dome index ” based on the temperature at 50 megabyte depth averaged over a 0.5° × 0.5° corner centered at 25.5°N, 122°E. The cold dome index correlates with temperature at 50 thousand astuteness in a larger region, suggesting the spatial extent of the cold dome phenomenon. The index had correlation maximum of 0.78 and 0.40 for simulated SSH and SST, respectively, in and around the cold dome box area, and we hypothesize that it is a useful index of upwelling off northeastern Taiwan. In addition, both correlation and complex analysis between the temperature at 50 megabyte astuteness and the East Taiwan Channel transport showed no cold attic events during low-transport events ( much in winter ) and more frequent cold dome events during high-transport events ( frequently in summer ). The model cold dome events had time scales of about two weeks, and their centers aligned roughly along a northeastward line starting from the northeastern tiptoe of Taiwan. Keywords: ECCO Products Used: SOSE URL: Other URLs:
Reynolds, Richard W; Chelton, Dudley B; Roberts-Jones, Jonah; Martin, Matthew J; Menemenlis, Dimitris; Merchant, Christopher John (2013). Objective Determination of Feature Resolution in Two Sea Surface Temperature Analyses, Journal of Climate, 8 (26), 2514-2533, 10.1175/JCLI-D-12-00787.1. Title: Objective Determination of Feature Resolution in Two Sea Surface Temperature Analyses Type: Journal article Publication: Journal of Climate Author(s): Reynolds, Richard W ; Chelton, Dudley B ; Roberts-Jones, Jonah ; Martin, Matthew J ; Menemenlis, Dimitris ; Merchant, Christopher John Year: 2013 Formatted Citation: Reynolds, R. W., D. B. Chelton, J. Roberts-Jones, M. J. Martin, D. Menemenlis, and C. J. Merchant, 2013 : objective decision of Feature Resolution in Two Sea Surface Temperature Analyses. J. Clim., 26 ( 8 ), 2514-2533, doi:10.1175/JCLI-D-12-00787.1 Abstract: considerable campaign is presently being devoted to producing high-resolution sea surface temperature ( SST ) analyses with a finish of spatial grid resolutions a low as 1 kilometer. Because grid resolution is not the lapp as feature resoluteness, a method is needed to objectively determine the resolving power capability and accuracy of SST analysis products. Ocean exemplary SST fields are used in this sketch as simulated “ true ” SST data and subsampled based on actual infrared and microwave satellite data coverage. The subsampled data are used to simulate sampling errors due to missing data. Two different SST analyses are considered and run using both the full and the subsampled model SST fields, with and without extra noise. The results are compared as a function of spatial scales of variability using wavenumber auto- and cross-spectral analysis.The apparitional discrepancy at high wavenumbers ( smallest wavelengths ) is shown to be attenuated relative to the true SST because of smoothing that is implicit in to both analysis procedures. Comparisons of the two analyses ( both having grid sizes of roughly ) show significant differences. One analysis tends to reproduce small-scale features more accurately when the high-resolution data coverage is good but produces more specious small-scale noise when the high-resolution data coverage is poor people. analysis procedures can therefore generate small-scale features with and without data, but the minor features in an SST psychoanalysis may be just noise when high-resolution data are sparse. Users must therefore be doubting of high-resolution SST products, specially in regions where high-resolution ( ~5 km ) infrared satellite data are limited because of obscure cover. Keywords: Numerical analysis/modeling, Surface temperature ECCO Products Used: ECCO2 ; LL_hiresURL: http://journals.ametsoc.org/doi/abs/10.1175/JCLI-D-12-00787.1 Other URLs:
Sciascia, R; Straneo, F; Cenedese, C; Heimbach, P (2013). Seasonal variability of submarine melt rate and circulation in an East Greenland fjord, Journal of Geophysical Research: Oceans, 5 (118), 2492-2506, 10.1002/jgrc.20142. Title: Seasonal variability of submarine dissolve rate and circulation in an East Greenland fjord Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Sciascia, R ; Straneo, F ; Cenedese, C ; Heimbach, P Year: 2013 Formatted Citation: Sciascia, R., F. Straneo, C. Cenedese, and P. Heimbach, 2013 : seasonal unevenness of submarine thaw rate and circulation in an East Greenland fjord. J. Geophys. Res. Ocean., 118 ( 5 ), 2492-2506, doi:10.1002/jgrc.20142 Abstract: The circulation in a frigid fjord driven by a big tidewater glacier is investigated using a nonhydrostatic ocean general circulation model with a melt rate parameterization at the vertical glacier front. The model configuration and water properties are based on data collected in Sermilik Fjord near Helheim Glacier, a major Greenland mercantile establishment glacier. The approximately two-layer stratification of the fjord ‘s ambient waters causes the meltwater preen at the glacier front man to drive a “ double cell ” circulation with two distinct outflows, one at the exempt surface and one at the layers ‘ interface. In summer, the discharge of surface overflow at the base of the glacier ( subglacial discharge ) causes the circulation to be a lot more vigorous and associated with a larger melt rate than in winter. The simulate “ double over cell ” circulation is consistent, in both seasons, with observations from Sermilik Fjord. Seasonal differences are besides present in the vertical structure of the mellow rate, which is maximum at the al-qaeda of the glacier in summer and at the layers ‘ interface in winter. fake submarine melt rates are strongly sensitive to the come of subglacial discharge, to changes in water temperature, and to the altitude of the layers. They are besides consistent with those inferred from simplified linear models based on the theory of buoyant plumes. Our results besides indicate that to correctly represent the dynamics of the meltwater preen, care must be taken in the choice of viscosity and diffusivity values in the exemplary. Keywords: 0720 Glaciers, 0798 Modeling, 4255 Numerical model, fjord dynamics, ice-ocean interaction, ocean model ECCO Products Used: URL: http://dx.doi.org/10.1002/jgrc.20142 Other URLs:
Kwon, Eun Young; Downes, Stephanie M.; Sarmiento, Jorge L.; Farneti, Riccardo; Deutsch, Curtis (2013). Role of the Seasonal Cycle in the Subduction Rates of Upper-Southern Ocean Waters, Journal of Physical Oceanography, 6 (43), 1096-1113, 10.1175/JPO-D-12-060.1. Title: Role of the Seasonal Cycle in the Subduction Rates of Upper-Southern Ocean Waters Type: Journal article Publication: Journal of Physical Oceanography Author(s): Kwon, Eun Young ; Downes, Stephanie M. ; Sarmiento, Jorge L. ; Farneti, Riccardo ; Deutsch, Curtis Year: 2013 Formatted Citation: Kwon, E. Y., S. M. Downes, J. L. Sarmiento, R. Farneti, and C. Deutsch, 2013 : role of the Seasonal Cycle in the Subduction Rates of Upper-Southern Ocean Waters. Journal of Physical Oceanography, 43 ( 6 ), 1096-1113, doi:10.1175/JPO-D-12-060.1 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/abs/10.1175/JPO-D-12-060.1 Other URLs:
Cougnon, Eva Audrey (2013). Modelling the sensitivity of dense shelf water formation in the Mertz Glacier region, East Antarctica. Title: Modelling the sensitivity of dense ledge urine formation in the Mertz Glacier region, East Antarctica Type: dissertation Publication: Author(s): Cougnon, Eva Audrey Year: 2013 Formatted Citation: Cougnon, E. A., 2013 : Modelling the sensitivity of dense shelf water system formation in the Mertz Glacier region, East Antarctica., 177 pp. hypertext transfer protocol : //eprints.utas.edu.au/23427/. Abstract: Given the importance of the overturning circulation to ball-shaped climate, there is a indigence to improve our understanding of Antarctic Bottom Water ( AABW ) formation and its sensitivity to change. The offshore properties of AABW are changing. Within the Australian-Antarctic river basin AABW has freshened and decreased in volume by about 50 % over the last few decades. Understanding what is driving these changes requires focusing on the key constitution region along the Adélie and George V Land ( AGVL ) seashore. here, the acute production of sea methamphetamine in the Mertz Glacier Polynya system drives Dense Shelf Water ( DSW ) constitution, the precursor to AABW. This dissertation uses a version of the Regional Ocean Modeling System ( ROMS ) that has been adapted for ocean/ice-shelf interactions to explore the sensitivity of DSW constitution to surface heat and salt fluxes and methamphetamine shelf basal melting. Interannual variability in airfoil heat and salt fluxes drives DSW export and methamphetamine ledge basal melting unevenness in the AGVL region. DSW export decreases by 86 % during a prolong time period ( 2000-2002 ) of decrepit polynya activeness ( ocean ice production ) before recovering during a confirm time period of stronger polynya activeness ( 2003-2005 ). Basal mellow of the Mertz Glacier Tongue ( MGT ) doubles under weak polynya bodily process because more warm water reaches the base of the internal-combustion engine shelf. idealize simulations highlight the importance of the air/sea fluxes on DSW constitution and ice ledge basal melting. A mean to firm air/sea forcing drives convection of dense water to sink at the ocean floor and drives melt near the abstruse ground line. Weaker air/sea forcing limits the depth of the convection and allows greater intrusions of warm modified circumpolar Deep Water within the ice shelf cavity and increases basal melting. The resultant stimulation of frigid meltwater produces a buoyant feather that stratifies the body of water column. Two simulations are run to investigate the shock of the calve of the MGT in 2010. Weaker polynya activity after calving results in an 89 % increase in sphere averaged ice ledge basal melting and an 80 % decrease of DSW export from the Adélie depression. Most importantly a distinct warming of the export DSW leads to a decrease in AABW production downstream. This dissertation demonstrates the sensitivity of south-polar ocean-cryosphere interactions to interannual unevenness and episodic changes to the local icescape ( frost shelves, iceberg and ocean internal-combustion engine ), finding that frosting shelf basal melting and DSW geological formation in the AGVL area is dramatically impacted by the MGT calving. Keywords: ECCO Products Used: ECCO2 ; IceSheetURL: https://eprints.utas.edu.au/23427/ Other URLs:
Kuai, L.; Worden, J.; Kulawik, S.; Bowman, K.; Lee, M.; Biraud, S. C.; Abshire, J. B.; Wofsy, S. C.; Natraj, V.; Frankenberg, C.; Wunch, D.; Connor, B.; Miller, C.; Roehl, C.; Shia, R.-L.; Yung, Y. (2013). Profiling tropospheric CO2 using Aura TES and TCCON instruments, Atmospheric Measurement Techniques, 1 (6), 63-79, 10.5194/amt-6-63-2013. Title: Profiling tropospheric CO2 using Aura TES and TCCON instruments Type: Journal article Publication: Atmospheric Measurement Techniques Author(s): Kuai, L. ; Worden, J. ; Kulawik, S. ; Bowman, K. ; Lee, M. ; Biraud, S. C. ; Abshire, J. B. ; Wofsy, S. C. ; Natraj, V. ; Frankenberg, C. ; Wunch, D. ; Connor, B. ; Miller, C. ; Roehl, C. ; Shia, R.-L. ; Yung, Y. Year: 2013 Formatted Citation: Kuai, L. and Coauthors, 2013 : Profiling tropospheric CO2 using Aura TES and TCCON instruments. Atmospheric Measurement Techniques, 6 ( 1 ), 63-79, doi:10.5194/amt-6-63-2013 Abstract: Monitoring the ball-shaped distribution and long-run variations of CO2 sources and sinks is required for characterizing the global carbon paper budget. total column measurements are utilitarian for estimating regional-scale fluxes ; however, model transportation remains a significant erroneousness informant, peculiarly for quantifying local sources and sinks. To improve the capability of estimating regional fluxes, we estimate lower tropospheric CO2 concentrations from ground-based near-infrared ( NIR ) measurements with space-based thermal infrared ( TIR ) measurements. The NIR measurements are obtained from the Total Carbon Column Observing Network ( TCCON ) of solar measurements, which provide an estimate of the total CO2 column sum. Estimates of tropospheric CO2 that are co-located with TCCON are obtained by assimilating Tropospheric Emission Spectrometer ( TES ) free tropospheric CO2 estimates into the GEOS-Chem model. We find that quantifying lower tropospheric CO2 by subtracting exempt tropospheric CO2 estimates from sum column estimates is a linear problem, because the count random uncertainties in entire column and lower tropospheric estimates are consistent with actual uncertainties as compared to aircraft data. For the sum column estimates, the random doubt is about 0.55 ppm with a bias of −5.66 ppm, consistent with previously published results. After accounting for the sum column bias, the diagonal in the lower tropospheric CO2 estimates is 0.26 ppm with a preciseness ( one criterion deviation ) of 1.02 ppm. This preciseness is sufficient for capturing the winter to summer unevenness of approximately 12 ppm in the lower troposphere ; double the variability of the sum column. This oeuvre shows that a combination of NIR and TIR measurements can profile CO2 with the preciseness and accuracy needed to quantify lower tropospheric CO2 variability. Keywords: ECCO Products Used: ECCO2URL: https://www.atmos-meas-tech.net/6/63/2013/ Other URLs:
Xie, Qiang; Xiao, JinGen; Wang, DongXiao; Yu, YongQiang (2013). Analysis of deep-layer and bottom circulations in the South China Sea based on eight quasi-global ocean model outputs, Chinese Science Bulletin, 32 (58), 4000-4011, 10.1007/s11434-013-5791-5. Title: psychoanalysis of deep-layer and bottom circulations in the South China Sea based on eight quasi-global ocean exemplar outputs Type: Journal article Publication: chinese Science Bulletin Author(s): Xie, Qiang ; Xiao, JinGen ; Wang, DongXiao ; Yu, YongQiang Year: 2013 Formatted Citation: Xie, Q., J. Xiao, D. Wang, and Y. Yu, 2013 : analysis of deep-layer and bottom circulations in the South China Sea based on eight quasi-global ocean model outputs. chinese Science Bulletin, 58 ( 32 ), 4000-4011, doi:10.1007/s11434-013-5791-5 Abstract: This learn is a preliminary analysis of the South China Sea ( SCS ) deep circulations using eight quasi-global high-resolution ocean model outputs. The goal is to assess models ‘ ability to simulate these deep circulations. The analysis reveals that models ‘ deep temperatures are colder than the observations in the World Ocean Atlas, while most models ‘ deep brininess values are higher than the observations, indicating models ‘ deep water is by and large colder and saltier than the world. furthermore, there are long-run trends in both temperature and salt simulations. The Luzon Strait ecstasy below 1500 thousand is 0.36 Sv when averaged for all models, smaller compared with the observation, which is about 2.5 Sv. Four assimilate models and one unassimilated ( OCCAM ) display that the Luzon deep-layer overflow reaches its minimal in spring and its utmost in winter. The vertically integrated streamfunctions below 2400 meter from these models show a deep cyclonic circulation in the SCS on a big scale ) Keywords: deep-layer and bottom SCS circulations, exemplary evaluation, quasi-global ocean model ECCO Products Used: ECCO2URL: http://link.springer.com/10.1007/s11434-013-5791-5 Other URLs:
Schanze, Julian J. (2013). The production of temperature and salinity variance and covariance: implications for mixing. Title: The product of temperature and salt division and covariance : implications for mixing Type: thesis Publication: Author(s): Schanze, Julian J. Year: 2013 Formatted Citation: Schanze, J. J., 2013 : The production of temperature and salt variation and covariance : implications for mixing., 195 pp. hypertext transfer protocol : //hdl.handle.net/1912/5741. Abstract: Large-scale thermal force and fresh water fluxes play an essential character in setting temperature and brininess in the ocean. A phone number of holocene estimates of the ball-shaped oceanic fresh water poise vitamin a well as the ball-shaped oceanic surface internet heat blend are used to investigate the effects of heat- and fresh water force at the ocean surface. such force induces changes in both concentration and density-compensated temperature and salt changes ( ‘spice ‘ ). The ratio of the relative contributions of haline and thermal force in the mix layer is maintained by large-scale come on fluxes, leading to important consequences for mixing in the ocean department of the interior. In a stratify ocean, mixing processes can be either along lines of changeless density ( isopycnal ) or across those lines ( diapycnal ). The contribution of these processes to the total mix rate in the ocean can be estimated from the large-scale force by evaluating the product of thermal variance, salt discrepancy and temperature-salinity covariance. hera, I use new estimates of come on fluxes to evaluate these terms and combine them to generate estimates of the production of concentration and spiciness variability under the assumption of a linear equation of state. As a consequence, it is possible to estimate the relative importance of isopycnal and diapycnal desegregate in the ocean. While isopycnal and diapycnal processes occur on very different duration scales, I find that the surface-driven production of concentration and spiciness variation requires an approximate equipartition between isopycnal and diapycnal mix in the ocean interior. In summation, retainer of the fully nonlinear equality of state of matter reveals that surface fluxes require an apparent irrepressibility gain ( expansion ) of the ocean, which allows an estimate of the amount of compression on mixing due to cabbeling in the ocean inner. Keywords: ECCO Products Used: ECCO2URL: https://hdl.handle.net/1912/5741 Other URLs:
Weigelt, Patrick; Kreft, Holger (2013). Quantifying island isolation – insights from global patterns of insular plant species richness, Ecography, 4 (36), 417-429, 10.1111/j.1600-0587.2012.07669.x. Title: Quantifying island isolation – insights from global patterns of insular plant species richness Type: Journal article Publication: Ecography Author(s): Weigelt, Patrick ; Kreft, Holger Year: 2013 Formatted Citation: Weigelt, P., and H. Kreft, 2013 : Quantifying island isolation – insights from ball-shaped patterns of insular plant species richness. Ecography, 36 ( 4 ), 417-429, doi:10.1111/j.1600-0587.2012.07669.x Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1111/j.1600-0587.2012.07669.x Other URLs:
Qu, T D; Gao, S; Fukumori, I (2013). Formation of salinity maximum water and its contribution to the overturning circulation in the North Atlantic as revealed by a global general circulation model, Journal of Geophysical Research-Oceans, 4 (118), 1982-1994, 10.1002/jgrc.20152. Title: Formation of brininess maximum water and its contribution to the overturning circulation in the North Atlantic as revealed by a ball-shaped general circulation model Type: Journal article Publication: Journal of Geophysical Research-Oceans Author(s): Qu, T D ; Gao, S ; Fukumori, I Year: 2013 Formatted Citation: Qu, T. D., S. Gao, and I. Fukumori, 2013 : formation of salt maximum water and its contribution to the overturning circulation in the North Atlantic as revealed by a ball-shaped general circulation exemplar. J. Geophys. Res. Ocean., 118 ( 4 ), 1982-1994, doi:10.1002/jgrc.20152 Abstract: The formation of salt maximum water in the North Atlantic is investigated using a simulated passive tracer and its adjoint. The results reveal that most salt maximum water in the North Atlantic comes from the northwestern function of the subtropical coil, and steer contribution from the evaporation-precipitation maximum region via the surface Ekman current is child. Water originating from the evaporation-precipitation utmost region has to recirculate in the subtropical coil before entering the sea come on brininess maximum area from the northwest. once subducted, some helping ( similar to 10 % ) of the brininess maximum body of water enters the equatorial region in the shoal subtropical cell, but most ( exchangeable to 70 % ) of it appears to turn north to join the North Atlantic Deep Water. The latter pathway involves a cubic circulation. When the strong, fresh come on body of water flows north along the western boundary, it turns east in the northerly subtropical coil. As a result of the big excess of dehydration over precipitation, this urine gradually gains its brininess on the road, until it reaches the sea surface salt utmost region in the cardinal subtropical coil. From there, the brininess utmost water is subducted and flows back to the western boundary in the depth range of the thermocline. With its high-salinity nature, a major part of this water system penetrates into the subpolar region and directly contributes to the deep thermohaline circulation. Keywords: North Atlantic, climatology, deep, formation, ocean, overturning circulation, pacific, pathways, brininess maximum, sea-surface brininess, trends, tropical atlantic, unevenness, public discussion ECCO Products Used: ECCO-KFS URL: Other URLs:
Wunsch, Carl (2013). Covariances and linear predictability of the Atlantic Ocean, Deep Sea Research Part II: Topical Studies in Oceanography (85), 228-243, 10.1016/j.dsr2.2012.07.015. Title: Covariances and linear predictability of the Atlantic Ocean Type: Journal article Publication: Deep Sea Research Part II : topical Studies in oceanography Author(s): Wunsch, Carl Year: 2013 Formatted Citation: Wunsch, C., 2013 : Covariances and linear predictability of the Atlantic Ocean. Deep Sea Research Part II : topical Studies in Oceanography, 85, 228-243, doi:10.1016/j.dsr2.2012.07.015 Abstract: The problem of understanding analogue predictability of elements of the ocean circulation is explored in the Atlantic Ocean for two disparate elements : ( 1 ) ocean open temperature ( SST ) under the storm track in a small region east of the Grand Banks and, ( 2 ) the meridional revolutionize circulation north of 30.5°S. To be worthwhile, any nonlinear method would need to exhibit greater skill, and so a rough baseline from which to judge more complex methods is the goal. A 16-year ocean submit estimate is used, under the assumption that inner oceanic unevenness is dominating externally imposed changes. No attest exists of significant nonlinearity in the bulge of the system over this time straddle. linear predictability is the floor of prison term and space correlations, and some predictive skill exists for a few months in SST, with some minor capability extending to a few years. sixteen years is, however, army for the liberation of rwanda besides shortstop for an evaluation for interannual, much less decadal, unevenness, although orders of order of magnitude are likely stably estimated. The meridional structure of the meridional overthrow circulation ( MOC ), defined as the time-varying upright integral to the maximum meridional bulk transportation at each latitude, shows closely complete decorrelation in the variability across about 35°N-the Gulf Stream organization. If a time-scale exists displaying coherence of the MOC between subpolar and subtropical gyres, it lies beyond the existing observation duration, and that has consequences for observing system strategies and the more general problem of detectability of change. Keywords: Extreme events, Meridionaloverturning, Ocean circulation, prediction ECCO Products Used: URL: http://www.sciencedirect.com/science/article/pii/S0967064512001014 Other URLs:
Straneo, Fiammetta; Heimbach, Patrick; Sergienko, Olga; Hamilton, Gordon; Catania, Ginny; Griffies, Stephen; Hallberg, Robert; Jenkins, Adrian; Joughin, Ian; Motyka, Roman; Pfeffer, W. Tad; Price, Stephen F.; Rignot, Eric; Scambos, Ted; Truffer, Martin; Vieli, Andreas (2013). Challenges to understanding the dynamic response of Greenland’s marine terminating glaciers to oc eanic and atmospheric forcing, Bulletin of the American Meteorological Society, 8 (94), 1131-1144, 10.1175/BAMS-D-12-00100.1. Title: Challenges to understanding the active reply of Greenland ’ s marine terminating glaciers to oc eanic and atmospheric push Type: Journal article Publication: Bulletin of the american Meteorological society Author(s): Straneo, Fiammetta ; Heimbach, Patrick ; Sergienko, Olga ; Hamilton, Gordon ; Catania, Ginny ; Griffies, Stephen ; Hallberg, Robert ; Jenkins, Adrian ; Joughin, Ian ; Motyka, Roman ; Pfeffer, W. Tad ; Price, Stephen F. ; Rignot, Eric ; Scambos, Ted ; Truffer, Martin ; Vieli, Andreas Year: 2013 Formatted Citation: Straneo, F. and Coauthors, 2013 : Challenges to understanding the dynamic answer of Greenland ‘s marine terminating glaciers to oc eanic and atmospheric impel. Bull. Am. Meteorol. Soc., 94 ( 8 ), 1131-1144, doi:10.1175/BAMS-D-12-00100.1 Abstract: The holocene hideaway and acceleration of mercantile establishment glaciers, angstrom well as enhanced surface melting around the methamphetamine sheet margin, have increased Greenland ‘s contribution to sea tied wax to 0.6 ± 0.1 millimeter yr−1 and its free of fresh water into the North Atlantic. The widespread, near-synchronous glacier retreat, and its coincidence with a time period of oceanic and atmospheric warming, suggests a coarse climate driver. evidence points to the marine margins of these glaciers as the region from which changes propagated inland. Yet, the forcings and mechanisms behind these active responses are ill understand and are either missing or artlessly parameterized in climate and internal-combustion engine sheet models. Resulting visualize ocean charge rise contributions from Greenland by 2100 remain highly changeable. This wallpaper summarizes the current state of cognition and highlights key physical aspects of Greenland ‘s coupled ice sheet-ocean-atmosphere organization. Three research thrusts are identified to yield fundamental insights into frost sheet, ocean, ocean … Keywords: ECCO Products Used: ECCO-V2URL: http://journals.ametsoc.org/doi/abs/10.1175/BAMS-D-12-00100.1 Other URLs:
Wortham IV, Cimarron James Lemuel (2013). A multi-dimensional spectral description of ocean variability with application. Title: A multi-dimensional apparitional description of ocean unevenness with application Type: thesis Publication: Author(s): Wortham IV, Cimarron James Lemuel Year: 2013 Formatted Citation: Wortham IV, C. J. L., 2013 : A multi-dimensional apparitional description of ocean unevenness with application. MIT-WHOI roast Program, 184 pp. hypertext transfer protocol : //hdl.handle.net/1912/5662. Abstract: Efforts to monitor the ocean for signs of climate change are hampered by ever-present noise, in the form of stochastic ocean unevenness, and detailed cognition of the char- acter of this noise is necessity for estimating the meaning of apparent trends. Typ- ically, uncertainty estimates are made by a variety of ad hoc methods, frequently based on numeric model results or the variability of the datum set being analyzed. We provide a taxonomic approach based on the four-dimensional frequency-wavenumber spec- trum of low-frequency ocean variability. This dissertation presents an empirical model of the spectrum of ocean variability for periods between about 20 days and 15 years and wavelengths of about 200-10,000 km, and describes applications to ocean circulation tendency signal detection, observing arrangement design, and satellite data process. The horizontal wavenumber-frequency part of the model spectrum is based on satellite altimetry, current meter data, moored temperature records, and shipboard ADCP data. The spectrum is dominated by motions along a “ nondispersive line ”. The observations considered are consistent with a universal ω −2 world power law at the high conclusion of the frequency scope, but discrepant with a cosmopolitan wavenumber ability law. The model spectrum is globally deviate and accounts for changes in prevailing phase focal ratio, period, and wavelength with localization. The upright structure of the model spectrum is based on numeral model results, current meter data, and theo- retical considerations. We find that the erect structure of energizing energy is coat intensify relative to the simplest theoretical predictions. We present a hypothesis for the interaction of linear Rossby waves with crude topography ; pugnacious topography can explain both the observe phase speeds and erect structure of unevenness. The better description of low-frequency ocean unevenness presented here will serve as a utilitarian joyride for future oceanographic studies. Keywords: ECCO Products Used: ECCO2URL: https://hdl.handle.net/1912/5662 Other URLs:
LI, Qun; ZHANG, Zhanhai; SUN, Li; WU, Huiding (2013). Ice concentration assimilation in a regional ice-ocean coupled model and its application in sea ice forecasting, Advances in Polar Science, 4 (24), 258, 10.3724/SP.J.1085.2013.00258. Title: Ice concentration assimilation in a regional ice-ocean coupled model and its application in sea frost forecast Type: Journal article Publication: Advances in Polar skill Author(s): LI, Qun ; ZHANG, Zhanhai ; SUN, Li ; WU, Huiding Year: 2013 Formatted Citation: LI, Q., Z. ZHANG, L. SUN, and H. WU, 2013 : Ice concentration assimilation in a regional ice-ocean coupled model and its application in ocean ice rink forecast. Advances in Polar Science, 24 ( 4 ), 258, doi:10.3724/SP.J.1085.2013.00258 Abstract: Keywords: ECCO Products Used: ECCO2 ; SeaIceURL: http://pub.chinasciencejournal.com/article/getArticleRedirect.action?doiCode=10.3724/SP.J.1085.2013.00258 Other URLs:
Morlighem, M; Rignot, E; Mouginot, J; Wu, X; Seroussi, Hélène; Larour, E; Paden, J (2013). High-resolution bed topography mapping of Russell Glacier, Greenland, inferred from Operation IceBridge data, Journal of Glaciology, 218 (59), 1015-1023, 10.3189/2013JoG12J235. Title: High-resolution sleep together topography map of Russell Glacier, Greenland, inferred from Operation IceBridge data Type: Journal article Publication: Journal of Glaciology Author(s): Morlighem, M ; Rignot, E ; Mouginot, J ; Wu, X ; Seroussi, Hélène ; Larour, E ; Paden, J Year: 2013 Formatted Citation: Morlighem, M., E. Rignot, J. Mouginot, X. Wu, H. Seroussi, E. Larour, and J. Paden, 2013 : high-resolution bed topography map of Russell Glacier, Greenland, inferred from Operation IceBridge data. Journal of Glaciology, 59 ( 218 ), 1015-1023, doi:10.3189/2013JoG12J235 Abstract: Detailed maps of bed natural elevation and frosting thickness are essential for understanding and projecting the development of the ice sheets. such maps are traditionally obtained using airborne radarsounding profiler data interpolated onto regular grids using geostatistical tools such as kriging. hera we compare three mapping techniques applied to a dense radar survey of Russell Glacier, West Greenland, by NASA Operation IceBridge : ( 1 ) radar imaging ( RT ) march of the radar data to map the layer elevation, ( 2 ) interpolation of radar-derived thickness by ordinary kriging ( KR ) and ( 3 ) reconstruction of frost thickness based on the principles of mass conservation ( MC ) combining radar-sounding profiler and frosting gesture data. RT eliminates ambiguities caused by off-nadir reflections, but is spatially limited. KR yields a standard error in bed elevation of 35 thousand, but big errors ( > 300m a-1 ) in flux divergence when combined with ice gesticulate data. MC yields a comparable performance in layer elevation mapping, and errors smaller than 1m a-1 in flux divergence. When the count of radar-sounding tracks is reduced, the performance of KR decreases more quickly than for MC. Our sketch locate shows that MC is capable of maintaining preciseness levels of 60m at 400m posting with flight tracks separated by 5 km. © 2014 Publishing Technology. Keywords: ECCO Products Used: IceSheetURL: http://www.escholarship.org/uc/item/2pp1r122 Other URLs:
Makowski, Jessica (2013). Understanding Transport Variability of the Antarctic Circumpolar Current Using Ocean Bottom Pressure. Title: Understanding Transport Variability of the Antarctic Circumpolar Current Using Ocean Bottom pressure Type: dissertation Publication: Author(s): Makowski, Jessica Year: 2013 Formatted Citation: Makowski, J., 2013 : Understanding Transport Variability of the Antarctic Circumpolar Current Using Ocean Bottom Pressure. ( January ), 61 pp. hypertext transfer protocol : //scholarcommons.usf.edu/etd/4915. Abstract: previous studies have suggested that ocean bottom atmospheric pressure ( OBP ) can be used to measure the transport unevenness of the Antarctic Circumpolar Current ( ACC ). The OBP observations from the Gravity Recovery and Climate Experiment ( GRACE ) are used to calculate tape drive along the clog charge between Antarctica and Australia. statistical analysis will be conducted to determine the uncertainty of the GRACE observations using a fake data put. There has been some evidence to suggest that Southern Hemisphere winds and the Southern Annular Mode ( SAM ) or the south-polar Oscillation ( AAO ) play a significant function in accelerating/decelerating ACC transportation, along with some contribution from buoyancy forcing. We will examine whether average zonal wind stress, wind tension curl, local anesthetic zonal winds, or the SAM are example of the low frequency zonal mass enchant variability. preliminary studies suggest that seasonal variation in ecstasy across the Australia-Antarctica suffocate point is driven by winds along and north of the northern front of the ACC, the Sub Tropical presence ( STF ). It besides appears that interannual variations in transport are related to wind variations centered confederacy of the Sub Antarctic Front ( SAF ). We have observed a firm minus correlation/positive correlation coefficient across the STF of the ACC in the indian Ocean, which suggests wind instrument try curl up may besides be creditworthy for conveyance variations. Keywords: Antarctic Circumpolar Current, GRACE, Ocean Bottom Pressure, Ocean Transport, Southern Ocean ECCO Products Used: ECCO-KFSURL: https://scholarcommons.usf.edu/etd/4915 Other URLs:
Morlighem, M; Seroussi, Hélène; Larour, E; Rignot, E (2013). Inversion of basal friction in Antarctica using exact and incomplete adjoints of a higher-order model, Journal of Geophysical Research: Earth Surface, 3 (118), 1746-1753, 10.1002/jgrf.20125. Title: Inversion of radical clash in Antarctica using demand and incomplete adjoints of a higher-order model Type: Journal article Publication: Journal of Geophysical Research : worldly concern airfoil Author(s): Morlighem, M ; Seroussi, Hélène ; Larour, E ; Rignot, E Year: 2013 Formatted Citation: Morlighem, M., H. Seroussi, E. Larour, and E. Rignot, 2013 : inversion of basal friction in Antarctica using demand and incomplete adjoints of a higher-order model. Journal of Geophysical Research : earth Surface, 118 ( 3 ), 1746-1753, doi:10.1002/jgrf.20125 Abstract: Basal friction below ice sheets remains ailing characterized and yet is a fundamental see on ice mechanics. here we use a accomplished map of coat speed of the Antarctic Ice Sheet to infer the basal clash over the entire celibate by combining these observations with a three-dimensional, thermomechanical, higher-order ice sheet numeral model from the Ice Sheet System Model capable reference software. We demonstrate that inverse methods can be promptly applied at the continental scale with allow selections of cost routine and of scheme of regulation, at a spatial settlement angstrom high as 3 kilometer along the coastline. We compare the convergence of two lineage algorithm with the demand and incomplete adjoints to show that the incomplete adjoint is an excellent approximation. The results reveal that the drive stress is about wholly balanced by the basal fleece stress over 80 % of the ice sheet. The basal friction coefficient, which relates basal friction to basal speed, is, however, importantly heterogenous : it is depleted on fast moving ice and high near topographical divides. Areas with depleted values extend far forbidden into the home, along glacier and internal-combustion engine stream tributaries, about to the flanks of topographical divides, suggesting that basal skid is far-flung beneath the Antarctic Ice Sheet. Keywords: 0726 Ice sheets, 0758 Remote sense, 0774 Dynamics, 0798 Modeling, 3260 Inverse hypothesis, basal friction, accurate adjoint, incomplete adjoint, inverse method, large-scale mold ECCO Products Used: IceSheetURL: http://dx.doi.org/10.1002/jgrf.20125 Other URLs:
Seo, H; Xie, S P (2013). Impact of ocean warm layer thickness on the intensity of hurricane Katrina in a regional coupled model, Meteorology and Atmospheric Physics, 1-2 (122), 19-32, 10.1007/s00703-013-0275-3. Title: Impact of ocean warm layer thickness on the volume of hurricane Katrina in a regional coupled exemplary Type: Journal article Publication: Meteorology and Atmospheric Physics Author(s): Seo, H ; Xie, S P Year: 2013 Formatted Citation: Seo, H., and S. P. Xie, 2013 : impact of ocean strong layer thickness on the volume of hurricane Katrina in a regional conjugate model. Meteorology and Atmospheric Physics, 122 ( 1-2 ), 19-32, doi:10.1007/s00703-013-0275-3 Abstract: The impression of pre-storm subsurface thermal structure on the volume of hurricane Katrina ( 2005 ) is examined using a regional coupled model. The Estimating Circulation and Climate of Ocean ( ECCO ) ocean state estimate is used to initialize the ocean part of the copulate model, and the reservoir of deficiencies in the pretense of Katrina intensity is investigated in relative to the initial astuteness of 26 A degrees C isotherm ( D26 ). The exemplary underestimates the volume of Katrina partially due to shallow D26 in ECCO. sensitivity tests with diverse ECCO initial fields indicate that the correct relationship between saturation and D26 can not be derived because D26 unevenness is underestimated in ECCO. A series of idealized experiments is carried out by modifying initial ECCO D26 to match the respect image. A more reasonable relationship between Katrina ‘s intensity and pre-storm D26 emerges : the intensity is much more sensitive to D26 than to sea surface temperature ( SST ). Ocean blend layer process plays a critical role in modulating inner-core SSTs when D26 is deeply, reducing mix layer cool and lowering the center pressure of the Katrina. Our leave lends potent support to the notion that accurate low-level formatting of pre-storm subsurface thermal social organization in prediction models is critical for a nice bode of saturation of Katrina and likely other intense storms. Keywords: data assimilation, gulf-of-mexico, heat-content, loop current, north pacific, prediction scheme ships, sea-surface temperature, firm state hurricanes, thermal structure, tropical cyclone volume ECCO Products Used: ECCO-KFS URL: Other URLs:
Chen, W; Ray, J; Shen, W B; Huang, C L (2013). Polar motion excitations for an Earth model with frequency-dependent responses: 2. Numerical tests of the meteorological excitations, Journal of Geophysical Research-Solid Earth, 9 (118), 4995-5007, 10.1002/jgrb.50313. Title: Polar motion excitations for an Earth model with frequency-dependent responses : 2. numerical tests of the meteorologic excitations Type: Journal article Publication: Journal of Geophysical Research-Solid Earth Author(s): Chen, W ; Ray, J ; Shen, W B ; Huang, C L Year: 2013 Formatted Citation: Chen, W., J. Ray, W. B. Shen, and C. L. Huang, 2013 : polar motion excitations for an Earth model with frequency-dependent responses : 2. numeral tests of the meteorologic excitations. Journal of Geophysical Research-Solid Earth, 118 ( 9 ), 4995-5007, doi:10.1002/jgrb.50313 Abstract: Polar motion excitement involves mass redistributions and motions of the Earth system relative to the mantle, vitamin a well as the frequency-dependent rheologtimescales y of the Earth, where the latter has recently been modeled in the shape of frequency-dependent Love numbers and polar gesture transfer functions. At seasonal worker and intraseasonal prison term scales, polar motions are dominated by angular momentum fluctuations due to mass redistributions and proportional motions in the atmosphere, oceans, and continental body of water, coke, and frost. In this study, we compare the geophysical excitations derived from versatile ball-shaped atmospheric, oceanic, and hydrological models ( NCEP, ECCO, ERA40, ERAinterim, and ECMWF functional products ), and construct two model sets LDC1 and LDC2 by combining the above models with a least deviation method acting. Comparisons between the geodetic excitation ( derived from the polar apparent motion serial IERS EOP 08 C04 ) and the geophysical excitations ( based on those meteorologic models ) imply that the atmospheric models are the most dependable while the hydrological ones are the most inaccurate ; that the ERAinterim is, in general, the best model set among the original ones, but the combined models LDC1 and LDC2 are a lot better than ERAinterim ; and that applying the frequency-dependent transfer functions to LDC1 and LDC2 improves their agreements with the geodetic excitement. therefore, we conclude that the combined models LDC1 and LDC2 are reliable, and the frequency-dependent Love numbers and polar apparent motion remove functions are well modeled. Keywords: atmospheric angular-momentum, equations, frequency-dependent answer, geodetic excitation, duration, meteorologic excitations, oceans, orientation course parameters, diametric movement, rotation, series, wobble ECCO Products Used: ECCO-KFS URL: Other URLs:
Wunsch, Carl; Schmitt, Raymond W; Baker, D James (2013). Climate change as an intergenerational problem, Proceedings of the National Academy of Sciences, 12 (110), 4435-4436, 10.1073/pnas.1302536110. Title: Climate deepen as an intergenerational problem Type: Journal article Publication: Proceedings of the National Academy of Sciences Author(s): Wunsch, Carl ; Schmitt, Raymond W ; Baker, D James Year: 2013 Formatted Citation: Wunsch, C., R. W. Schmitt, and D. J. Baker, 2013 : Climate change as an intergenerational trouble. Proceedings of the National Academy of Sciences, 110 ( 12 ), 4435-4436, doi:10.1073/pnas.1302536110 Abstract: Keywords: ECCO Products Used: URL: http://www.pnas.org/content/110/12/4435.short Other URLs:
Fukumori, Ichiro; Wang, Ou (2013). Origins of heat and freshwater anomalies underlying regional decadal sea level trends, Geophysical Research Letters, 3 (40), 563-567, 10.1002/grl.50164. Title: Origins of hotness and fresh water anomalies underlying regional decadal sea level trends Type: Journal article Publication: Geophysical Research Letters Author(s): Fukumori, Ichiro ; Wang, Ou Year: 2013 Formatted Citation: Fukumori, I., and O. Wang, 2013 : Origins of heat and fresh water anomalies underlying regional decadal sea level trends. Geophys. Res. Lett., 40 ( 3 ), 563-567, doi:10.1002/grl.50164 Abstract: Keywords: 1641 Sea level transfer, 4215 Climate and interannual unevenness, 4260 Ocean data assimilation and reanalysis, 4263 Ocean predictability and prediction, 4513 Decadal ocean unevenness, climate change, ocean circulation, sea flat resurrect ECCO Products Used: ECCO-V2URL: http://dx.doi.org/10.1002/grl.50164 Other URLs:
Ma, Hsi-Yen; Xiao, Heng; Mechoso, C. Roberto; Xue, Yongkang (2013). Sensitivity of Global Tropical Climate to Land Surface Processes: Mean State and Interannual Variability, Journal of Climate, 5 (26), 1818-1837, 10.1175/JCLI-D-12-00142.1. Title: Sensitivity of Global Tropical Climate to Land Surface Processes : beggarly State and Interannual Variability Type: Journal article Publication: Journal of Climate Author(s): Ma, Hsi-Yen ; Xiao, Heng ; Mechoso, C. Roberto ; Xue, Yongkang Year: 2013 Formatted Citation: Ma, H., H. Xiao, C. R. Mechoso, and Y. Xue, 2013 : sensitivity of Global Tropical Climate to Land Surface Processes : think of State and Interannual Variability. J. Clim., 26 ( 5 ), 1818-1837, doi:10.1175/JCLI-D-12-00142.1 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: http://journals.ametsoc.org/doi/abs/10.1175/JCLI-D-12-00142.1 Other URLs:
Gierach, Michelle M.; Vazquez-Cuervo, Jorge; Lee, Tong; Tsontos, Vardis M. (2013). Aquarius and SMOS detect effects of an extreme Mississippi River flooding event in the Gulf of Mexico, Geophysical Research Letters, 19 (40), 5188-5193, 10.1002/grl.50995. Title: Aquarius and SMOS detect effects of an extreme point Mississippi River flooding consequence in the Gulf of Mexico Type: Journal article Publication: Geophysical Research Letters Author(s): Gierach, Michelle M. ; Vazquez-Cuervo, Jorge ; Lee, Tong ; Tsontos, Vardis M. Year: 2013 Formatted Citation: Gierach, M. M., J. Vazquez-Cuervo, T. Lee, and V. M. Tsontos, 2013 : Aquarius and SMOS detect effects of an extreme Mississippi River flooding event in the Gulf of Mexico. Geophys. Res. Lett., 40 ( 19 ), 5188-5193, doi:10.1002/grl.50995 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: http://doi.wiley.com/10.1002/grl.50995 Other URLs:
Zhai, Xiaoming; Wunsch, Carl (2013). On the Variability of Wind Power Input to the Oceans with a Focus on the Subpolar North Atlantic, Journal of Climate, 11 (26), 3892-3903, 10.1175/JCLI-D-12-00472.1. Title: On the Variability of Wind Power Input to the Oceans with a Focus on the Subpolar North Atlantic Type: Journal article Publication: Journal of Climate Author(s): Zhai, Xiaoming ; Wunsch, Carl Year: 2013 Formatted Citation: Zhai, X., and C. Wunsch, 2013 : On the Variability of Wind Power Input to the Oceans with a Focus on the Subpolar North Atlantic. J. Clim., 26 ( 11 ), 3892-3903, doi:10.1175/JCLI-D-12-00472.1 Abstract: Variations in ability remark to the ocean using a recent global “ reanalysis ” extending back to 1871 show a hard tendency in the net might input since then, a tendency dominated by the Southern Ocean region. This vogue is interpreted as a bastardly leave of the changing experimental arrangement. Focusing consequently on the North Atlantic Ocean, where the database is reasonably more fasten, it is found that the input exponent in the subpolar North Atlantic varies importantly in clock time, showing a strong relationship to the North Atlantic Oscillation ( NAO ). During incontrovertible NAO index years, power input is greater owing to enhanced synoptic action. furthermore, accumulative world power input signal to the subpolar North Atlantic is found to correlate importantly with both the eddy kinetic energy there and the Atlantic multidecadal oscillation ( AMO ), although the physical mechanism at work remains ill-defined. The assumption that the changing ocean can be neglected relative to the changing atmosphere in calculating the office stimulation is found to be a usefully accurate approximation over the two decades for which changing ocean state estimates are available. solid dependence on synoptic weather systems of monthly-mean stress distributions implies that past and future climate simulations must account by rights for changes in weather systems, not just the large-scale variations. Keywords: North Atlantic Oscil, Ocean circulation, Wind stress ECCO Products Used: URL: http://journals.ametsoc.org/doi/abs/10.1175/JCLI-D-12-00472.1 Other URLs:
Meyrath, T.; van Dam, T.; Weigelt, M.; Cheng, M. (2013). An assessment of degree-2 Stokes coefficients from Earth rotation data, Geophysical Journal International, 1 (195), 249-259, 10.1093/gji/ggt263. Title: An appraisal of degree-2 Stokes coefficients from Earth rotation data Type: Journal article Publication: Geophysical Journal International Author(s): Meyrath, T. ; van Dam, T. ; Weigelt, M. ; Cheng, M. Year: 2013 Formatted Citation: Meyrath, T., T. avant-garde Dam, M. Weigelt, and M. Cheng, 2013 : An judgment of degree-2 Stokes coefficients from Earth rotation data. Geophysical Journal International, 195 ( 1 ), 249-259, doi:10.1093/gji/ggt263 Abstract: Variations in the degree-2 Stokes coefficients C20, C21 and S21 can be used to understand long- and short-run climate push. here we derive changes in these coefficients for the period 2003 January-2012 April using Earth rotation data. earth rotation data contain contributions from gesticulate terms ( the effects of winds and currents ) and contributions from the effects of aggregate redistribution. We remove the effects of tides, atmospheric winds and oceanic currents from our data. We compare two different models of atmospheric and oceanic angular momentum for removing the effects of winds and currents : ( 1 ) using products from the National Centers for Environmental Prediction and ( 2 ) using data from the European Centre for Medium-range Weather Forecasts ( ECMWF ). We assess the quality of these gesture models by comparing the two resulting sets of degree-2 Stokes coefficients to independent degree-2 estimates from satellite laser ranging ( SLR ), GRACE and a geophysical loading model. We find a good agreement between the coefficients from Earth rotation and the coefficients from other sources. In general, the agreement is better for the coefficients we obtain by removing winds and currents effects using the ECMWF exemplar. In this case, we find higher correlations with the autonomous models and smaller scatters in differences. This fact holds in particular for { Delta } C20 and { Delta } C21, whereas we can not observe a significant difference for { Delta } S21. At the annual and semiannual periods, our earth rotation derived coefficients agree well with the estimates from the other sources, particularly for { Delta } C21 and { Delta } S21. The little discrepancies we obtain for { Delta } C20 can credibly be explained by errors in the atmospheric models and are most likely the consequence of an over-/underestimation of the annual and semiannual contributions of atmospheric winds to the length-of-day excitation. Keywords: Earth rotation variations, Geopotential theory, Satellite geodesy, Time variable gravity ECCO Products Used: ECCO-KFSURL: https://academic.oup.com/gji/article/195/1/249/610675 Other URLs:
Volkov, Denis L.; Landerer, Felix W; Kirillov, Sergey A (2013). The genesis of sea level variability in the Barents Sea, Continental Shelf Research (66), 92-104, 10.1016/j.csr.2013.07.007. Title: The genesis of ocean grade unevenness in the Barents Sea Type: Journal article Publication: Continental Shelf Research Author(s): Volkov, Denis L. ; Landerer, Felix W ; Kirillov, Sergey A Year: 2013 Formatted Citation: Volkov, D. L., F. W. Landerer, and S. A. Kirillov, 2013 : The genesis of sea level unevenness in the Barents Sea. Continental Shelf Research, 66, 92-104, doi:10.1016/j.csr.2013.07.007 Abstract: The regional variability of sea grade is an integral indicator of changing oceanographic conditions due to unlike processes of oceanic, atmospheric, and planetary origin. The introduce study explores the nature of sea level variability in the Barents Sea-a bare ledge sea of the Arctic Ocean. A feature feature that distinguishes this ocean from early Arctic ledge ocean is that it is largely ice rink complimentary throughout the class. This allows continuous monitor of ocean horizontal surface by space-borne altimeters. In this work we combine satellite altimetry, ocean gravity measurements by GRACE satellites, available hydrography data, and a high-resolution ocean data synthesis product to estimate the steric and mass-related components of sea level in the Barents Sea. We present one of the foremost experimental evidence of the local importance of the mass-related sea tied changes. The watch 1-3 calendar month phase stave between the annual cycles of sea level in the Barents Sea and in the Nordic seas ( norwegian, Iceland, Greenland sea ) is explained by the annual mass-related changes. The analysis of the barotropic vorticity budget shows that the mass-related sea level unevenness in the cardinal part of the Barents Sea is determined by the compound effect of wind stress, menstruate over the varying buttocks topography, and profligacy, while the impact of vorticity fluxes is negligible. overall, the steric sea tied has smaller amplitudes and chiefly varies on the seasonal time scale. The thermosteric sea horizontal surface is the independent contributor to the steric ocean level along the pathways of the Atlantic inflow into the Barents Sea. The relative contribution of the halosteric ocean level is prevailing in the southeast, eastern, and northern parts of the Barents Sea, modulated by the seasonal sea frosting formation/melt adenine well as by continental runoff. The variability of the thermosteric ocean level in the Barents Sea is largely driven by variations in the net surface heating system blend, whereas the contribution of heat advection becomes vitamin a crucial as the ocean-atmosphere heating system exchange at interannual clock scales. Keywords: Arctic seas, Barents Sea, ECCO2, GRACE, Satellite altimetry, Sea degree variability ECCO Products Used: ECCO2URL: http://www.sciencedirect.com/science/article/pii/S027843431300246X Other URLs:
Condron, Alan; Renfrew, Ian A (2013). The impact of polar mesoscale storms on northeast Atlantic Ocean circulation, Nature Geosci, 1 (6), 34-37, 10.1038/ngeo1661. Title: The impact of diametric mesoscale storms on northeast Atlantic Ocean circulation Type: Journal article Publication: Nature Geosci Author(s): Condron, Alan ; Renfrew, Ian A Year: 2013 Formatted Citation: Condron, A., and I. A. Renfrew, 2013 : The impact of polar mesoscale storms on northeasterly Atlantic Ocean circulation. Nature Geosci, 6 ( 1 ), 34-37, doi:10.1038/ngeo1661 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://dx.doi.org/10.1038/ngeo1661 Other URLs:
Khazendar, A; Schodlok, M P; Fenty, Ian; Ligtenberg, S R M; Rignot, E; van den Broeke, M R (2013). Observed thinning of Totten Glacier is linked to coastal polynya variability, Nat Commun (4), 10.1038/ncomms3857. Title: Observed dilute of Totten Glacier is linked to coastal polynya variability Type: Journal article Publication: Nat Commun Author(s): Khazendar, A ; Schodlok, M P ; Fenty, Ian ; Ligtenberg, S R M ; Rignot, E ; van den Broeke, M R Year: 2013 Formatted Citation: Khazendar, A., M. P. Schodlok, I. Fenty, S. R. M. Ligtenberg, E. Rignot, and M. R. van lair Broeke, 2013 : Observed thin of Totten Glacier is linked to coastal polynya unevenness. Nat Commun, 4, doi:10.1038/ncomms3857 Abstract: analysis of ICESat-1 data ( 2003-2008 ) shows meaning coat lowering of Totten Glacier, the glacier discharging the largest volume of frosting in East Antarctica, and less change on nearby Moscow University Glacier. After accounting for firn compaction anomalies, the reduce appears to coincide with fast-flowing internal-combustion engine indicating a dynamic origin. here, to elucidate these observations, we apply high-resolution ice-ocean modeling. Totten Ice Shelf is simulated to have higher, more variable star basal melting rates. We link this unevenness to the volume of cold urine, originating in polynya upon sea ice constitution, reaching the sub-ice-shelf cavity. Hence, we propose that the observe increased dilute of Totten Glacier is due to enhanced basal melting caused by a decrease in cold polynya water reaching its cavity. We support this guess with passive microwave data of polynya extent unevenness. Considering the widespread changes in sea ice conditions, this mechanism could be contributing extensively to ice-shelf instability. Keywords: ECCO Products Used: ECCO2 ; IceSheetURL: http://dx.doi.org/10.1038/ncomms3857 Other URLs:
Schanze, Julian J.; Schmitt, Raymond W. (2013). Estimates of Cabbeling in the Global Ocean, Journal of Physical Oceanography, 4 (43), 698-705, 10.1175/JPO-D-12-0119.1. Title: Estimates of Cabbeling in the Global Ocean Type: Journal article Publication: Journal of Physical Oceanography Author(s): Schanze, Julian J. ; Schmitt, Raymond W. Year: 2013 Formatted Citation: Schanze, J. J., and R. W. Schmitt, 2013 : Estimates of Cabbeling in the Global Ocean. Journal of Physical Oceanography, 43 ( 4 ), 698-705, doi:10.1175/JPO-D-12-0119.1 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/abs/10.1175/JPO-D-12-0119.1 Other URLs:
Cerovečki, Ivana; Talley, Lynne D; Mazloff, Matthew R; Maze, Guillaume (2013). Subantarctic Mode Water Formation, Destruction, and Export in the Eddy-Permitting Southern Ocean State Estimate, Journal of Physical Oceanography, 7 (43), 1485-1511, 10.1175/JPO-D-12-0121.1. Title: Subantarctic Mode Water Formation, Destruction, and Export in the Eddy-Permitting Southern Ocean State Estimate Type: Journal article Publication: Journal of Physical Oceanography Author(s): Cerovečki, Ivana ; Talley, Lynne D ; Mazloff, Matthew R ; Maze, Guillaume Year: 2013 Formatted Citation: Cerovečki, I., L. D. Talley, M. R. Mazloff, and G. Maze, 2013 : Subantarctic Mode Water Formation, Destruction, and Export in the Eddy-Permitting Southern Ocean State Estimate. Journal of Physical Oceanography, 43 ( 7 ), 1485-1511, doi:10.1175/JPO-D-12-0121.1 Abstract: n/a Keywords: ECCO Products Used: SOSEURL: http://dx.doi.org/10.1175/JPO-D-12-0121.1 Other URLs:
Subramanian, A. C.; Miller, A. J.; Cornuelle, B. D.; Di Lorenzo, E.; Weller, R. A.; Straneo, F. (2013). A data assimilative perspective of oceanic mesoscale eddy evolution during VOCALS-REx, Atmospheric Chemistry and Physics, 6 (13), 3329-3344, 10.5194/acp-13-3329-2013. Title: A datum assimilating perspective of oceanic mesoscale eddy evolution during VOCALS-REx Type: Journal article Publication: Atmospheric Chemistry and Physics Author(s): Subramanian, A. C. ; Miller, A. J. ; Cornuelle, B. D. ; Di Lorenzo, E. ; Weller, R. A. ; Straneo, F. Year: 2013 Formatted Citation: Subramanian, A. C., A. J. Miller, B. D. Cornuelle, E. Di Lorenzo, R. A. Weller, and F. Straneo, 2013 : A data assimilative position of oceanic mesoscale eddy evolution during VOCALS-REx. Atmospheric Chemistry and Physics, 13 ( 6 ), 3329-3344, doi:10.5194/acp-13-3329-2013 Abstract: Oceanic observations collected during the VOCALS-REx cruise fourth dimension period, 1-30 November 2008, are assimilated into a regional ocean model ( ROMS ) using 4DVAR and then analyzed for their dynamics. Nonlinearities in the system prevent a accomplished 30-day fit, thus two 15-day fits for 1-15 November and 16-30 November are executed using the available observations of hydrographic temperature and salt, along with satellite fields of SST and low-lying altitude anomaly. The fits converge and reduce the cost function significantly, and the results indicated that ROMS is able to successfully reproduce both large-scale and smaller-scale features of the flows observed during the VOCALS-REx cruise. particular care is focused on an intensively studied eddy at 76° W, 19° S. The ROMS fits capture this eddy as an isolate rotating three-d whirlpool with a firm subsurface key signature in speed, temperature and anomalously low salt. The eddy has an average temperature anomaly of approximately −0.5 °C over a depth range from 50-600 thousand and features a cold anomaly of approximately −1 °C near 150 thousand astuteness. The eddy moves northwestward and elongates during the second 15-day fit. It exhibits a potent key signature in the Okubo-Weiss parameter, which indicates meaning nonlinearity in its development. The heat balance for the period of the cruise from the ocean state estimate reveals that the horizontal advection and the vertical mix processes are the dominant terms that balance the temperature leaning of the upper layer of the ocean locally in time and space. areal averages around the eddies, for a 15-day period during the cruise, suggest that vertical mix processes generally balance the surface heating system. Although, this indicates entirely a small role for lateral advective processes in this region during this period, this quasi-instantaneous heat budget analysis can not be extended to interpret the seasonal or long-run upper ocean heat budget in this region. Keywords: ECCO Products Used: SOSEURL: https://www.atmos-chem-phys.net/13/3329/2013/ Other URLs:
Piecuch, Christopher G; Ponte, Rui M (2013). Buoyancy-Driven Interannual Sea Level Changes in the Tropical South Atlantic, Journal of Physical Oceanography, 3 (43), 533-547, 10.1175/JPO-D-12-093.1. Title: Buoyancy-Driven Interannual Sea Level Changes in the Tropical South Atlantic Type: Journal article Publication: Journal of Physical Oceanography Author(s): Piecuch, Christopher G ; Ponte, Rui M Year: 2013 Formatted Citation: Piecuch, C. G., and R. M. Ponte, 2013 : Buoyancy-Driven Interannual Sea Level Changes in the Tropical South Atlantic. Journal of Physical Oceanography, 43 ( 3 ), 533-547, doi:10.1175/JPO-D-12-093.1 Abstract: Linear models of dynamic ocean adjustment to wind field changes, local atmospheric drive, and easterly boundary push are often invoked to explain respect patterns of interannual regional ocean level unevenness. While nice in some regions, these processes alone can not explain low levels of interannual sea horizontal surface unevenness observed in the tropical Atlantic. In this report, through a set of modeling approaches, interannual sea level changes in the tropical South Atlantic are attributed and the dynamic influence of buoyancy force is elucidated. exchangeable to holocene findings in the southeast tropical Pacific, ocean degree patterns in the tropical South Atlantic ( as estimated from a data-constrained ocean general circulation exemplary ) are found to result from the action of both airfoil wind and buoyancy wedge ; in addition to static local effects, the buoyancy-driven changes comprise significant nonlocal ocean dynamic processes. It is shown that the buoyancy-driven ocean level changes can be understood within the framework of a linear first baroclinic mode Rossby wave model forced by atmospheric fields and variability along the easterly boundary. To lowest decree, the analogue model framework besides reproduces qualitative patterns of basinwide compensation between wind- and buoyancy-driven sea grade changes, which are by and large tied to the anticorrelation of both surface and boundary storm. Results suggest that the ocean ‘s dynamic adaptation to buoyancy forcing exerts an important influence on interannual sea level changes across all tropical oceans. Keywords: Barocli, Buoyancy, Rossby waves, South Atlantic Ocean ECCO Products Used: URL: http://journals.ametsoc.org/doi/abs/10.1175/JPO-D-12-093.1 Other URLs:
Mazloff, Matthew R; Ferrari, Raffaele; Schneider, Tapio (2013). The Force Balance of the Southern Ocean Meridional Overturning Circulation, Journal of Physical Oceanography, 6 (43), 1193-1208, 10.1175/JPO-D-12-069.1. Title: The Force Balance of the Southern Ocean Meridional Overturning Circulation Type: Journal article Publication: Journal of Physical Oceanography Author(s): Mazloff, Matthew R ; Ferrari, Raffaele ; Schneider, Tapio Year: 2013 Formatted Citation: Mazloff, M. R., R. Ferrari, and T. Schneider, 2013 : The Force Balance of the Southern Ocean Meridional Overturning Circulation. Journal of Physical Oceanography, 43 ( 6 ), 1193-1208, doi:10.1175/JPO-D-12-069.1 Abstract: The southerly Ocean ( SO ) limb of the meridional overthrow circulation ( MOC ) is characterized by three vertically bosomy cells, each with a transport of about 10 Sv ( Sv ≡ 106 m3 s−1 ). The buoyancy transport in the SO is dominated by the upper and middle MOC cells, with the middle cell report for most of the buoyancy ecstasy across the Antarctic Circumpolar Current. A southerly Ocean express estimate for the years 2005 and 2006 with ⅙° settlement is used to determine the forces balancing this MOC. Diagnosing the zonal momentum budget in concentration space allows an accurate determination of the adiabatic and diapycnal components balancing the thickness-weighted ( residual ) meridional conveyance. It is found that, to lowest order, the transport consists of an eddy component, a directly wind-driven component, and a part in symmetry with mean blackmail gradients. Nonvanishing time-mean pressure gradients arise because isopycnal layers intersect topography or the coat in a circumpolar integral, leading to a largely geostrophic MOC even in the latitude band of Drake Passage. It is the geostrophic water bulk transport in the open layer where isopycnals outcrop that accomplishes the poleward buoyancy transport. Keywords: Forcing, Meridional overturning circ, Southern Ocean ECCO Products Used: URL: http://journals.ametsoc.org/doi/abs/10.1175/JPO-D-12-069.1 Other URLs:
Wunsch, Carl; Heimbach, Patrick (2013). Two Decades of the Atlantic Meridional Overturning Circulation: Anatomy, Variations, Extremes, Prediction, and Overcoming Its Limitations, Journal of Climate, 18 (26), 7167-7186, 10.1175/JCLI-D-12-00478.1. Title: Two Decades of the Atlantic Meridional Overturning circulation : Anatomy, Variations, Extremes, Prediction, and Overcoming Its Limitations Type: Journal article Publication: Journal of Climate Author(s): Wunsch, Carl ; Heimbach, Patrick Year: 2013 Formatted Citation: Wunsch, C., and P. Heimbach, 2013 : Two Decades of the Atlantic Meridional Overturning circulation : Anatomy, Variations, Extremes, Prediction, and Overcoming Its Limitations. J. Clim., 26 ( 18 ), 7167-7186, doi:10.1175/JCLI-D-12-00478.1 Abstract: The zonally integrated meridional volume ecstasy in the North Atlantic [ Atlantic meridional overturning circulation ( AMOC ) ] is described in a 19-yr-long ocean-state calculate, one consistent with a divers ball-shaped dataset. apart from a weak increasing drift at high northern latitudes, the AMOC appears statistically stable over the end 19 year with fluctuations indistinguishable from those of a stationary Gaussian stochastic serve. This word picture makes it possible to study ( using highly explicate tools ) extreme values, predictability, and the statistical significance of apparent trends. gaussian behavior is consistent with the central limit theorem for a procedure arising from numerous independent disturbances. In this character, generators include internal instabilities, changes in wind and buoyancy impel fields, limit waves, the Gulf Stream and deep westerly boundary stream transports, the department of the interior divide in Sverdrup libra, and all similar phenomena arriving as sum effects from long distances and times. As a zonal integral through the sum of the big diverseness of physical processes in the cubic ocean circulation, agreement of the AMOC, if it is of cardinal climate importance, requires breaking it down into its segregated components over the entire basin. Keywords: Climate predict, Meridional overturning circulation ECCO Products Used: ECCO-V4 ; ECCO2URL: http://journals.ametsoc.org/doi/abs/10.1175/JCLI-D-12-00478.1 Other URLs:
Szymczak, Andrzej; Sipeki, Levente (2013). Visualization of morse connection graphs for topologically rich 2D vector fields, IEEE Transactions on Visualization and Computer Graphics, 12 (19), 2763-2772, 10.1109/TVCG.2013.229. Title: Visualization of morse joining graph for topologically full-bodied 2D vector fields Type: Journal article Publication: IEEE Transactions on Visualization and Computer Graphics Author(s): Szymczak, Andrzej ; Sipeki, Levente Year: 2013 Formatted Citation: Szymczak, A., and L. Sipeki, 2013 : visual image of morse connection graph for topologically rich 2D vector fields. IEEE Transactions on Visualization and Computer Graphics, 19 ( 12 ), 2763-2772, doi:10.1109/TVCG.2013.229 Abstract: Recent advances in vector field topologymake it possible to compute its multi-scale graph representations for autonomous 2D vector fields in a robust and efficient manner. One of these representations is a morse association Graph ( MCG ), a lead graph whose nodes correspond to Morse sets, generalizing stationary points and periodic trajectories, and arcs – to trajectories connecting them. While being utilitarian for simpleton vector fields, the MCG can be difficult to comprehend for topologically rich vector fields, containing a big count of features. This paper describes a ocular representation of the MCG, inspired by previous work on graph visual image. Our approach aims to preserve the spatial relationships between the MCG arc and nodes and highlight the coherent behavior of connecting trajectories. Using simulations of ocean flow, we show that it can provide utilitarian information on the run social organization. This wallpaper focuses specifically on MCGs computed for piecewise constant ( personal computer ) vector fields. In especial, we describe extensions of the personal computer model that make it more compromising and better suited for analysis of data on building complex shaped domains with a boundary. We besides describe a regional anatomy simplification scheme that makes our microgram visualizations less ambiguous. Despite the focus on the personal computer framework, our approach path could besides be applied to graph representations or topological skeletons computed using different methods. Keywords: Morse joining graph, Vector field topology ECCO Products Used: ECCO2 URL: Other URLs:
Baringer, M O; Johns, W E; McCarthy, G D; Willis, J; Garzoli, S; Lankhorst, M; Meinen, C S; Send, U; Hobbs, W R; Cunningham, S A; Rayner, D; Smeed, D A; Kanzow, T; Heimbach, P; Frajka-Williams, E; Macdonald, A; Dong, S; Marotzke, J (2013). Meridional overturning circulation and heat transport observations in the Atlantic Ocean, State of the Climate in 2012, 8 (94), S65–S68. Title: Meridional overturn circulation and heating system transport observations in the Atlantic Ocean Type: Book department Publication: State of the Climate in 2012 Author(s): Baringer, M O ; Johns, W E ; McCarthy, G D ; Willis, J ; Garzoli, S ; Lankhorst, M ; Meinen, C S ; Send, U ; Hobbs, W R ; Cunningham, S A ; Rayner, D ; Smeed, D A ; Kanzow, T ; Heimbach, P ; Frajka-Williams, E ; Macdonald, A ; Dong, S ; Marotzke, J Year: 2013 Formatted Citation: Baringer, M. O. and Coauthors, 2013 : meridional overturning circulation and estrus transport observations in the Atlantic Ocean. State of the Climate in 2012, 94 ( 8 ), S65 — S68 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://nora.nerc.ac.uk/505326/ Other URLs: hypertext transfer protocol : //pure.mpg.de/rest/items/item_1838285/component/file_1838284/content
Tenzer, Robert; Dayoub, Nadim; Abdalla, Ahmed (2013). Analysis of a relative offset between vertical datums at the North and South Islands of New Zealand, Applied Geomatics, 2 (5), 133-145, 10.1007/s12518-013-0106-8. Title: Analysis of a proportional offset between vertical datums at the North and South Islands of New Zealand Type: Journal article Publication: Applied Geomatics Author(s): Tenzer, Robert ; Dayoub, Nadim ; Abdalla, Ahmed Year: 2013 Formatted Citation: Tenzer, R., N. Dayoub, and A. Abdalla, 2013 : psychoanalysis of a relative counterbalance between vertical datums at the North and South Islands of New Zealand. Applied Geomatics, 5 ( 2 ), 133-145, doi:10.1007/s12518-013-0106-8 Abstract: The charge networks realized by 13 different local erect datums were jointly readjusted at the South and North Islands of New Zealand. The relation between these two level networks and the Word Height System was then defined using GPS-leveling data and the EGM08 ball-shaped geopotential model. In this study, we investigate the relative cancel between these two erect datum realizations. This is done based on comparison of the geometric geoid/quasigeoid heights ( obtained from GPS and newly adjusted razing data ) with the regional hydrometric geoid/quasigeoid solutions. furthermore, oceanographic and geodetic models of hateful moral force topography ( MDT ) are used to assess the proportional offset between these two upright datum realizations through the analysis of regional spatial variations of mean sea level ( MSL ). The comparison of GPS-leveling data with regional hydrometric solutions reveals large taxonomic distortions ( exceeding several decimeters across New Zealand ) between the geometric and hydrometric geoid/quasigeoid heights attributed chiefly to taxonomic errors within regional hydrometric solutions. The presence of a significant beginning between the erect datum realizations at the North and South Islands is not confirmed. The MSL remainder between tide gauges in Wellington and Dunedin of ∼24 centimeter is estimated based on the analysis of MDT models. Keywords: ECCO Products Used: ECCO2URL: http://dx.doi.org/10.1007/s12518-013-0106-8 Other URLs:
Wunsch, Carl; Heimbach, Patrick (2013). Dynamically and Kinematically Consistent Global Ocean Circulation and Ice State Estimates. Title: Dynamically and Kinematically Consistent Global Ocean Circulation and Ice State Estimates Type: Book section Publication: Author(s): Wunsch, Carl ; Heimbach, Patrick Year: 2013 Formatted Citation: Wunsch, C., and P. Heimbach, 2013 : Dynamically and Kinematically Consistent Global Ocean Circulation and Ice State Estimates., 553-579, doi:10.1016/B978-0-12-391851-2.00021-0 Abstract: Keywords: ECCO Products Used: ECCO-V2 ; ECCO2URL: https://linkinghub.elsevier.com/retrieve/pii/B9780123918512000210 Other URLs:
Freiwald, Grit (2012). Combining Stationary Ocean Modelsand Mean Dynamic Topography Data, Universität Bremen, 139. Title: Combining Stationary Ocean Modelsand Mean Dynamic Topography Data Type: dissertation Publication: Universität Bremen Author(s): Freiwald, Grit Year: 2012 Formatted Citation: Freiwald, G., 2012 : Combining Stationary Ocean Modelsand Mean Dynamic Topography Data, Universität Bremen. 139 Abstract: In this study, a new estimate for the Mean Dynamic Topography ( MDT ) and its error description is analysed in terms of its affect on the performance of ocean models. This MDT estimate is chiefly designed for the combination with ocean models. For the first time, a entire error covariance matrix is available whose inverse can readily be used as weighting matrix in the optimization. Two different steady-state inverse ocean models are analysed in terms of their reply to the new MDT data arrange. The 2D exemplar FEMSECT is a incision model which is applied to the SR3 hydrographic section in the southern Ocean in this study. The 3D exemplar IFEOM is a finite element model for the North Atlantic. The output of each of these ocean models in turn provides a compound satellite-ocean model MDT. This combined MDT contains information from satellites, physical principles, hydrographic atlas data and the prior cognition that is assumed for the model setup. This analyze investigates whether the inverse ocean models benefit from the new MDT data bent and its error covariance. It is verified that the resulting unite MDT is more realistic than both the arrant model MDT and the saturated experimental MDT. It is examined whether oceanographic features such as the ocean current structure, the overturning circulation and heat transports are besides improved by the assimilate MDT data sic. extra focus is given to the MDT error covariance estimate as it is crucial in the optimization. Its impact on the resultant role is studied in detail. In the FEMSECT model optimization, three normally known problems were identified, two of which could be solved by the application of Kimura ‘s method forestimating airfoil velocities from ocean ice stray data. The exit of resolving power of the satellite geoid data could not be solved due to lack of minor data for the mannequin area. A series of solutions was computed with the IFEOM model. The assimilation of the newly compound MDT data improved the circulation estimate well. More details of the ocean currents are revealed and increased velocities and temperature gradients appear that had not been visible in former model runs. The conventional errorestimate for the modern MDT data fructify is excessively small to be utilized by the IFEOM model to its full extent of possible accuracy. Therefore it must be downweighted in the optimization process. Different downweighting approaches for extracting the most desirable sum of data from the data are proposed. It was found that the MDT error covariances are of overall importance for eloquence and for the mean solidus weight in the optimization. It was shown that a decomposition of the covariance matrix and subsequent reinterpretation of the geodetic normal equations and the cost function is possible. The resulting optimize model solution is the best IFEOM solution in terms of selected oceanographic features. Most improvements regarding the IFEOM model output were observed by refining the omission error model and by increasing the exemplary resolving power. It is suggested to further explore the MDT error covariance structure and to use more complex ocean models to fully exploit the value of the new spaceborne data. Keywords: ECCO Products Used: ECCO2URL: https://d-nb.info/1071993992/34 Other URLs:
Dail, Holly Janine (2012). Atlantic Ocean Circulation at the Last Glacial Maximum: Inferences from Data and Models, MIT Libraries. Title: Atlantic Ocean Circulation at the end arctic maximal : Inferences from Data and Models Type: thesis Publication: MIT Libraries Author(s): Dail, Holly Janine Year: 2012 Formatted Citation: Dail, H.J., 2012 : atlantic Ocean Circulation at the last arctic maximal : Inferences from Data and Models, MIT Libraries Abstract: This dissertation focuses on ocean circulation and atmospheric pull in the Atlantic Ocean at the last Glacial Maximum ( LGM, 18-21 thousand years before present ). relative to the preindustrial climate, LGM atmospheric CO2 concentrations were approximately 90 ppm lower, frosting sheets were much more extensive, and many regions experienced significantly colder temperatures. In this thesis a novel approach to dynamic reconstruction is applied to make estimates of LGM Atlantic Ocean state that are reproducible with these proxy records and with known ocean dynamics. Ocean dynamics are described with the MIT General Circulation Model in an Atlantic configuration extending from 35°S to 75°N at 1°resolution. Six LGM proxy types are used to constrain the model : four compilations of near ocean airfoil temperatures from the MARGO project, arsenic well as benthic isotope records of [ delta ] 18O and [ delta ] 13C compiled by Marchaland Curry ; 629 individual proxy records are used. To improve the match of the model to the data, a least-squares fit is computed using an algorithm based on the model adjoint ( the Lagrange multiplier methodology ). The adjoint is used to compute improvements to uncertain initial and boundary conditions ( the dominance variables ). As compared to former model-data syntheses of LGM ocean country, this thesis uses a significantly more realistic model of oceanic physics, and is the first gear to incorporate such a boastfully number and diversity of proxy records. A major recover is that it is possible to find an ocean state that is coherent with all six LGM proxy compilations and with known ocean dynamics, given reasonable uncertainty estimates. only relatively minor shifts from modern atmospheric force are required to fit the LGM data. The estimates presented herein succesfully reproduce regional shifts in conditions at the LGM that have been inferred from proxy records, but which have not been captured in the best available LGM coupled model simulations. In addition, LGM benthic [ delta ] 18O and [ delta ] 13C records are shown to be coherent with a shoal but full-bodied Atlantic meridional overturning cellular telephone, although early circulations can not be excluded. Keywords: ECCO Products Used: OCCAURL: https://dspace.mit.edu/handle/1721.1/78367 Other URLs:
Luo, Hao; Bracco, Annalisa; Yashayaev, Igor; Di Lorenzo, Emanuele (2012). The interannual variability of potential temperature in the central Labrador Sea, Journal of Geophysical Research: Oceans, C10 (117), 10.1029/2012JC007988. Title: The interannual variability of potential temperature in the central Labrador Sea Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Luo, Hao ; Bracco, Annalisa ; Yashayaev, Igor ; Di Lorenzo, Emanuele Year: 2012 Formatted Citation: Luo, H., A. Bracco, I. Yashayaev, and E. Di Lorenzo, 2012 : The interannual variability of potential temperature in the central Labrador Sea, Journal of Geophysical Research : Oceans, 117 ( C10 ), department of the interior : 10.1029/2012JC007988 Abstract: The interannual unevenness of likely temperature in the central Labrador Sea is studied with a suite of numeral simulations with an eddy-resolving regional ocean model and compared with available observations. The model successfully reproduces the note variations in electric potential temperature at depths comprised between 150 and 2000 m over the period 1980-2009, capturing besides the warming swerve of the stopping point ten and the deep urine formation event in 2008. The suite of experiments allows for quantifying the contribution from the physical forcings creditworthy for the interannual variability of potential temperature in the region. The local atmospheric forcing drives the interannual signal by driving convection, while the incoming current arrangement along the east slide of Greenland is responsible for about half of the warming course ( ~0.3-0.4°C ) during the last ten through restratification process. The lateral conveyance of Irminger water in the convective region into the central Labrador Sea is further analyze integrating a passive tracer. It is found that the overall amount of Irminger water system transported in the convective region of the Labrador Sea is immediately correlated with the amount of erect convective mix. In the last decade, following the decrease in convective activeness, the mannequin reveals a substantial decrease in concentration of Irminger Current water below 500 molarity in the Labrador Sea inside : by 2010 the overall amount is less than half than in the former 20 years. Keywords: ECCO Products Used: ECCO-KFSURL: https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2012JC007988 Other URLs:
Wu, Xiaoping; Ray, Jim; van Dam, Tonie (2012). Geocenter motion and its geodetic and geophysical implications, Journal of Geodynamics (58), 44-61, 10.1016/j.jog.2012.01.007. Title: Geocenter motion and its geodetic and geophysical implications Type: Journal article Publication: Journal of Geodynamics Author(s): Wu, Xiaoping ; Ray, Jim ; avant-garde Dam, Tonie Year: 2012 Formatted Citation: Wu, X., J. Ray, and T. van Dam, 2012 : Geocenter motion and its geodetic and geophysical implications, Journal of Geodynamics, 58, 44-61, department of the interior : 10.1016/j.jog.2012.01.007 Abstract: The horizontal tape drive of water in Earth ‘s open layer, including sea level change, deglaciation, and open runoff, is a manifestation of many geophysical processes. These processes entail ocean and air circulation and tidal attraction, ball-shaped climate switch, and the hydrological bicycle, all having a broad range of spatiotemporal scales. The largest atmospheric mass variations occur by and large at synoptic wavelengths and at seasonal time scales. The longest wavelength component of come on batch transport, the ball-shaped harmonic degree-1, involves the change of batch between the northerly and southerly hemispheres. These degree-1 mass loads deform the solid Earth, including its surface, and induce geocenter motion between the center-of-mass of the total land arrangement ( CM ) and the center-of-figure ( CF ) of the solid Earth surface. Because geocenter motion besides depends on the mechanical properties of the solid Earth, monitoring geocenter gesture therefore provides an extra opportunity to probe deep into Earth ‘s inside. Most modern geodetic measurement systems rely on tracking data between ground stations and satellites that orb around CM. consequently, geocenter motion is well related to the realization of the International Terrestrial Reference Frame ( ITRF ) origin, and, in assorted ways, affects many of our measurement objectives for global variety monitor. In the last 15 years, there have been huge improvements in geophysical fluid model and in the global coverage, compaction, and accuracy of geodetic observations. As a result of these developments, enormous progress has been made in the report of geocenter gesture over the like period. This paper reviews both the theoretical and measurement aspects of geocenter motion and its implications. Keywords: ECCO Products Used: ECCO-V3URL: https://linkinghub.elsevier.com/retrieve/pii/S0264370712000087 Other URLs:
Liu, Hailong; Zhang, Minghua; Lin, Wuyin (2012). An Investigation of the Initial Development of the Double-ITCZ Warm SST Biases in the CCSM, Journal of Climate (25), 140-155, 10.1175/2011JCLI4001.1. Title: An investigation of the Initial Development of the Double-ITCZ Warm SST Biases in the CCSM Type: Journal article Publication: Journal of Climate Author(s): Liu, Hailong ; Zhang, Minghua ; Lin, Wuyin Year: 2012 Formatted Citation: Liu, H., M. Zhang, and W. Lin, 2012 : An probe of the Initial Development of the Double-ITCZ Warm SST Biases in the CCSM, Journal of Climate, 25 ( 1 ), 140-155, department of the interior : 10.1175/2011JCLI4001.1 Abstract: This composition investigates the initial development of the double ITCZ in the Community Climate System Model translation 3 ( CCSM3 ) in the cardinal Pacific. Starting from a resting initial condition of the ocean in January, the model developed a warm bias of sea surface temperature ( SST ) in the cardinal Pacific from 5°S to 10°S in the first three months. This initial bias is caused by excessive surface shortwave radiation that is besides portray in the stand-alone atmospheric model. The initial bias is promote amplified by biases in both surface latent heat magnetic field and horizontal inflame conveyance in the upper ocean. These biases are caused by the responses of come on winds to SST diagonal and the thermocline structure to surface wind curl up. This study besides showed that the warming biases in surface solar radiation sickness and latent heat fluxes are seasonally offset by cooling biases from reduced solar radiation sickness after the austral summer ascribable to cloud responses and in the austral fall due to enhanced vaporization when the maximum SST is closest to the equator. The warming biases from the moral force inflame transmit by ocean currents however stay throughout all seasons once they are developed, which are finally balanced by enhanced energy exchange and penetration of solar radiation below the assorted layer. It was besides shown that the equatorial cold clapper develops after the warm biases in the south-central Pacific, and the overestimate of surface shortwave radiation recurs in the austral summer in each year. The results provide a shell cogitation on the physical processes leading to the exploitation of the double ITCZ. Applicability of the results in other models is discussed. Keywords: ECCO Products Used: ECCO-V3URL: https://journals.ametsoc.org/view/journals/clim/25/1/2011jcli4001.1.xml Other URLs:
Aiken, Christopher M. (2012). Seasonal thermal structure and exchange in Baker Channel, Chile, Dynamics of Atmospheres and Oceans (58), 1-19, 10.1016/j.dynatmoce.2012.07.001. Title: Seasonal thermal structure and exchange in Baker Channel, Chile Type: Journal article Publication: Dynamics of Atmospheres and Oceans Author(s): Aiken, Christopher M. Year: 2012 Formatted Citation: Aiken, C.M., 2012 : seasonal worker thermal structure and commute in Baker Channel, Chile, Dynamics of Atmospheres and Oceans, 58, 1-19, department of the interior : 10.1016/j.dynatmoce.2012.07.001 Abstract: A serial of four field campaigns undertaken between November 2007 and August 2008 in the Baker Channel fjord complex in southern Chile provide a unique record of the seasonal evolution of its vertical and axile structure. The observations document the calefacient of subsurface waters during the summer and fall of 2008 creating a subsurface temperature maximum that persists at the channel head until the be leap. An analysis of the watch horizontal and upright structure is used to infer that the subsurface heating owe to the seasonal worker intrusion of relatively warm water from Penas Gulf. A series of numerical simulations provide defend for the hypothesis that seasonal worker density fluctuations in the Penas Gulf are responsible for modulating the exchange of mediator waters and maintaining anomalously quick water at the channel head from fall until the following bounce. The exchange mechanism involves adaptation of the Baker Channel concentration plain to the summer airiness increase in the Penas Gulf, which creates an inflow of relatively ardent water that fills the channel below the level of the brackish seaward flowing coat layer. The predominantly seasonal worker refilling of mediator waters in Baker Channel contrasts with the more normally synoptic nature of above sill exchange in fjords. Keywords: ECCO Products Used: ECCO-V3URL: https://linkinghub.elsevier.com/retrieve/pii/S0377026512000267 Other URLs:
Webber, Benjamin G.M.; Stevens, David P.; Matthews, Adrian J.; Heywood, Karen J. (2012). Dynamical Ocean Forcing of the Madden–Julian Oscillation at Lead Times of up to Five Months, Journal of Climate, 8 (25), 2824-2842, 10.1175/JCLI-D-11-00268.1. Title: Dynamical Ocean Forcing of the Madden–Julian oscillation at Lead Times of up to Five Months Type: Journal article Publication: Journal of Climate Author(s): Webber, Benjamin G.M. ; Stevens, David P. ; Matthews, Adrian J. ; Heywood, Karen J. Year: 2012 Formatted Citation: Webber, B.G.M. ; D.P. Stevens, A.J. Matthews, and K.J.Heywood, 2012 : dynamic Ocean Forcing of the Madden–Julian oscillation at Lead Times of up to Five Months, Journal of Climate, 25 ( 8 ), 2824-2842, department of the interior : 10.1175/JCLI-D-11-00268.1 Abstract: The authors show that a dim-witted three-dimensional ocean model linearized about a lie basic state can accurately simulate the dynamic ocean response to wind storm by the Madden–Julian oscillation ( MJO ). This includes the propagation of equatorial waves in the indian Ocean, from the genesis of oceanic equatorial Kelvin waves to the arrival of downwelling oceanic equatorial Rossby waves in the western amerind Ocean, where they have been shown to trigger MJO convective activeness. Simulations with idealize wind forcing suggest that the latitudinal width of this storm plays a crucial function in determining the potential for such feedbacks. Forcing the model with composite MJO winds accurately captures the global ocean reception, demonstrating that the observe ocean dynamic response to the MJO can be interpreted as a linear response to surface fart coerce. The model is then applied to study “ elementary ” Madden–Julian events, which are not immediately preceded by any MJO natural process or by any apparent atmospheric triggers, but have been shown to coincide with the arrival of downwelling oceanic equatorial Rossby waves. Case study simulations show how this oceanic equatorial Rossby wave activeness is partially forced by mirror image of an oceanic equatorial Kelvin wave triggered by a westerly hoist burst 140 days previously, and partially immediately forced by easterly wind tension anomalies around 40 days prior to the event. This suggests predictability for primary Madden–Julian events on times scales of up to five months, following the reemergence of oceanic anomalies forced by winds about half a year earlier. Keywords: ECCO Products Used: ECCO-V3URL: https://journals.ametsoc.org/view/journals/clim/25/8/jcli-d-11-00268.1.xml Other URLs:
Moore, Andrew M.; Arango, Hernan G.; Broquet, Gregoire (2012). Estimates of Analysis and Forecast Error Variances Derived from the Adjoint of 4D-Var, Monthly Weather Review, 10 (140), 3183-3203, 10.1175/MWR-D-11-00141.1. Title: Estimates of Analysis and Forecast Error Variances Derived from the Adjoint of 4D-Var Type: Journal article Publication: Monthly Weather Review Author(s): Moore, Andrew M. ; Arango, Hernan G. ; Broquet, Gregoire Year: 2012 Formatted Citation: Moore, A.M., H.G. Arango, and G. Broquet, 2012 : Estimates of Analysis and Forecast Error Variances Derived from the Adjoint of 4D-Var, Monthly Weather Review, 140 ( 10 ), 3183-3203, department of the interior : 10.1175/MWR-D-11-00141.1 Abstract: A method acting is presented in which the adjoint of a four-dimensional variational data acculturation system ( 4D-Var ) was used to compute the expect analysis and calculate mistake variances of linear functions of the ocean state of matter vector. The baron and utility of the approach are demonstrated using the Regional Ocean Modeling System configured for the California Current system. linear functions of the ocean state vector were considered in the form of indices that characterize respective aspects of the coastal upwelling circulation. It was found that for configurations of 4D-Var typically used in ocean models, reliable estimates of the expected analysis error variances can be obtained both for variables that are observed and unobserved. In addition, the contribution of uncertainties in the model control variables to the calculate error variability was besides quantified. One peculiarly herculean and illuminating aspect of the adjoint 4D-Var approach to the prognosis trouble is that the contribution of individual observations to the predictability of the circulation can be promptly computed. An important determine of the ferment presented here is that despite the overplus of available satellite observations, the relatively modest fraction of in situ subsurface observations sometimes exerts a significant determine on the predictability of the coastal ocean. independent checks of the analysis and prognosis error variances are besides presented, which provide a direct examination of the hypotheses that underpin the prior mistake and observation error estimates used during 4D-Var. Keywords: ECCO Products Used: ECCO-V3URL: https://journals.ametsoc.org/view/journals/mwre/140/10/mwr-d-11-00141.1.xml Other URLs:
Emerson, Steven; Ito, Taka; Hamme, Roberta C. (2012). Argon supersaturation indicates low decadal-scale vertical mixing in the ocean thermocline, Geophysical Research Letters, 18 (39), 10.1029/2012GL053054. Title: Argon supersaturation indicates abject decadal-scale upright shuffle in the ocean thermocline Type: Journal article Publication: Geophysical Research Letters Author(s): Emerson, Steven ; Ito, Taka ; Hamme, Roberta C. Year: 2012 Formatted Citation: Emerson, S., T. Ito, and R.C. Hamme, 2012 : Argon supersaturation indicates low decadal-scale vertical blend in the ocean thermocline, Geophysical Research Letters, 39 ( 18 ), department of the interior : 10.1029/2012GL053054 Abstract: The rate of upright mix in the ocean ‘s stratify waters limits the consumption of anthropogenetic CO2, influences the strength of the overturning circulation, and regulates the transport of nutrients to the lighted surface waters, controlling global biological production. Despite this fundamental importance, there is a long-standing riddle in oceanography that experimentally-measured rates of churning mixing across density surfaces ( diapycnal mix ) in the main thermocline can not support sufficient nutrient fluxes from below to explain rates of biological output measured in the subtropical euphotic zone. possible solutions to this problem are enchant mechanisms that occur intermittently on short time and space scales that would be difficult to observe in tracer-release experiments and are not resolved in large-scale ocean models. We tested this guess by measuring highly-accurate argon profiles from the subtropical thermocline in the North Pacific Ocean. It has been shown theoretically that the transfer in argon supersaturation along concentration surfaces is a measure of diapycnal mix averaged over the decadal time-scale of thermocline public discussion. Two different model interpretations of our data indicate that the hateful pace of diapycnal blend on concentration surfaces between σθ = 26.4 – 26.7 ( depth 150-600 thousand ) is no more than 0.2 × 10-4 m2 s-1. This supports abject diapycnal mix rates even on decadal time-scales and rules out enhancement of diapycnal mix on this concentration interval by intermittent desegregate or blend at boundaries that propagates into the ocean home. Keywords: ECCO Products Used: ECCO-V3URL: https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2012GL053054 Other URLs:
Webber, Benjamin G. M.; Matthews, Adrian J.; Heywood, Karen J.; Stevens, David P. (2012). Ocean Rossby waves as a triggering mechanism for primary Madden-Julian events, Quarterly Journal of the Royal Meteorological Society, 663 (138), 514-527, 10.1002/qj.936. Title: Ocean Rossby waves as a triggering mechanism for primary Madden-Julian events Type: Journal article Publication: Quarterly Journal of the Royal Meteorological Society Author(s): Webber, Benjamin G. M. ; Matthews, Adrian J. ; Heywood, Karen J. ; Stevens, David P. Year: 2012 Formatted Citation: Webber, B.G.M., A.J. Matthews, K.J. Heywood, and D.P. Stevens, 2012 : Ocean Rossby waves as a triggering mechanism for primary coil Madden-Julian events, Quarterly Journal of the Royal Meteorological Society, 138 ( 663 ), 514-527, department of the interior : 10.1002/qj.936 Abstract: The Madden–Julian Oscillation ( MJO ) is sporadic, with episodes of cyclic activity interspersed with inactive periods. however, it remains unclear what may trigger a Madden–Julian ( MJ ) event which is not immediately preceded by any MJO activeness : a ‘primary ‘ MJ event. A combination of case-studies and complex analysis is used to examine the extent to which the trip of primary MJ events might occur in reaction to ocean dynamics. The case-studies show that such events can be triggered by the arrival of a downwelling oceanic equatorial Rossby curl, which is shown to be associated with a deepen of the assorted layer and convinced sea-surface temperature ( SST ) anomalies of the regulate of 0.5–1 °C. These SST anomalies are not attributable to forcing by surface fluxes which are weak for the case-studies analysed. Furthermore, composite analysis suggests that such storm is systematically crucial for triggering chief events. The relationship is a lot weaker for consecutive events, due to the many other triggering mechanisms which operate during periods of cyclic MJO bodily process. This oceanic feedback mechanism is a viable explanation for the sporadic and broadband nature of the MJO. additionally, it provides hope for forecasting MJ events during periods of inactivity, when MJO forecasts by and large exhibit low skill. Keywords: ECCO Products Used: ECCO-V3URL: https://onlinelibrary.wiley.com/doi/10.1002/qj.936 Other URLs:
Pavlis, Nikolaos K.; Holmes, Simon A.; Kenyon, Steve C.; Factor, John K. (2012). The development and evaluation of the Earth Gravitational Model 2008 (EGM2008), Journal of Geophysical Research: Solid Earth, B4 (117), 10.1029/2011JB008916. Title: The exploitation and evaluation of the Earth Gravitational Model 2008 ( EGM2008 ) Type: Journal article Publication: Journal of Geophysical Research : solid earth Author(s): Pavlis, Nikolaos K. ; Holmes, Simon A. ; Kenyon, Steve C. ; Factor, John K. Year: 2012 Formatted Citation: Pavlis, N.K. ; S.A. Holmes, S.C. Kenyon, and J.K. Factor, 2012 : The development and evaluation of the Earth Gravitational Model 2008 ( EGM2008 ), Journal of Geophysical Research : solid Earth, 117 ( B4 ), department of the interior : 10.1029/2011JB008916 Abstract: EGM2008 is a spherical harmonic model of the Earth ‘s gravitational likely, developed by a least square combination of the ITG-GRACE03S gravitational model and its associate error covariance matrix, with the gravitational information obtained from a ball-shaped fit of area-mean free-air gravity anomalies defined on a 5 arc-minute equiangular grid. This grid was formed by merging mundane, altimetry-derived, and airborne gravity data. Over areas where only lower resolution gravity data were available, their spectral content was supplemented with gravitational information implied by the topography. EGM2008 is complete to degree and arrange 2159, and contains extra coefficients up to degree 2190 and rate 2159. Over areas covered with high quality gravity data, the discrepancies between EGM2008 geoid undulations and independent GPS/Leveling values are on the order of ±5 to ±10 centimeter. EGM2008 vertical deflections over USA and Australia are within ±1.1 to ±1.3 arc-seconds of independent astrogeodetic values. These results indicate that EGM2008 performs comparably with contemporary detailed regional geoid models. EGM2008 performs equally well with early GRACE-based gravitational models in orbit computations. Over EGM96, EGM2008 represents improvement by a factor of six in resolution, and by factors of three to six in accuracy, depending on gravitational measure and geographic sphere. EGM2008 represents a milestone and a new paradigm in ball-shaped gravity field model, by demonstrating for the first time ever, that given accurate and detail hydrometric data, asingle global mannequin may satisfy the requirements of a identical wide range of applications. Keywords: ECCO Products Used: ECCO-V3URL: https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2011JB008916 Other URLs:
Hayakawa, Hideaki; Shibuya, Kazuo; Aoyama, Yuichi; Nogi, Yoshifumi; Doi, Koichiro (2012). Ocean bottom pressure variability in the Antarctic Divergence Zone off Lützow-Holm Bay, East Antarctica, Deep Sea Research Part I: Oceanographic Research Papers (60), 22-31, 10.1016/j.dsr.2011.09.005. Title: Ocean bottomland imperativeness unevenness in the Antarctic Divergence Zone off Lützow-Holm Bay, East Antarctica Type: Journal article Publication: Deep Sea Research Part I : Oceanographic Research Papers Author(s): Hayakawa, Hideaki ; Shibuya, Kazuo ; Aoyama, Yuichi ; Nogi, Yoshifumi ; Doi, Koichiro Year: 2012 Formatted Citation: Hayakawa, H., K. Shibuya, Y. Aoyama, Y. Nogi, and K. Doi, 2012 : Ocean bottom blackmail unevenness in the Antarctic Divergence Zone off Lützow-Holm Bay, East Antarctica. Deep Sea Research Part I : Oceanographic Research Papers, 60, 22-31, doi:10.1016/j.dsr.2011.09.005 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: https://linkinghub.elsevier.com/retrieve/pii/S0967063711001713 Other URLs:
Chambers, D. P.; Bonin, J. A. (2012). Evaluation of Release-05 GRACE time-variable gravity coefficients over the ocean, Ocean Science, 5 (8), 859-868, 10.5194/os-8-859-2012. Title: Evaluation of Release-05 GRACE time-variable gravity coefficients over the ocean Type: Journal article Publication: Ocean Science Author(s): Chambers, D. P. ; Bonin, J. A. Year: 2012 Formatted Citation: Chambers, D. P., and J. A. Bonin, 2012 : evaluation of Release-05 GRACE time-variable gravity coefficients over the ocean. Ocean Science, 8 ( 5 ), 859-868, doi:10.5194/os-8-859-2012 Abstract: Abstract. The latest release of GRACE ( Gravity Recovery and Climate Experiment ) gravity field coefficients ( Release-05, or RL05 ) are evaluated for ocean applications. Data have been processed using the current methodology for Release-04 ( RL04 ) coefficients, and have been compared to output from two different ocean models. Results indicate that RL05 data from the three Science Data Centers – the Center for Space Research ( CSR ), GeoForschungsZentrum ( GFZ ), and Jet Propulsion Laboratory ( JPL ) – are more reproducible among themselves than the previous RL04 datum. furthermore, the discrepancy of residuals with the end product of an ocean mannequin is 50-60 % lower for RL05 data than for RL04 data. A more optimize destriping algorithm is besides tested, which improves the results slightly. By comparing the GRACE maps with two different ocean models, we can better estimate the uncertainty in the RL05 maps. We find the criterion erroneousness to be about 1 cm ( equivalent water thickness ) in the low- and mid-latitudes, and between 1.5 and 2 centimeter in the diametric and subpolar oceans, which is comparable to estimated uncertainty for the output from the ocean models. Keywords: ECCO Products Used: ECCO-KFSURL: https://os.copernicus.org/articles/8/859/2012/ Other URLs:
Johnson, Mark; Proshutinsky, Andrey; Aksenov, Yevgeny; Nguyen, An T.; Lindsay, Ron; Haas, Christian; Zhang, Jinlun; Diansky, Nikolay; Kwok, Ron; Maslowski, Wieslaw; Häkkinen, Sirpa; Ashik, Igor; de Cuevas, Beverly (2012). Evaluation of Arctic sea ice thickness simulated by Arctic Ocean Model Intercomparison Project models, Journal of Geophysical Research: Oceans, C8 (117), n/a-n/a, 10.1029/2011JC007257. Title: Evaluation of Arctic sea ice thickness simulated by Arctic Ocean Model Intercomparison Project models Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Johnson, Mark ; Proshutinsky, Andrey ; Aksenov, Yevgeny ; Nguyen, An T. ; Lindsay, Ron ; Haas, Christian ; Zhang, Jinlun ; Diansky, Nikolay ; Kwok, Ron ; Maslowski, Wieslaw ; Häkkinen, Sirpa ; Ashik, Igor ; de Cuevas, Beverly Year: 2012 Formatted Citation: Johnson, M. and Coauthors, 2012 : evaluation of Arctic sea frost thickness simulated by Arctic Ocean Model Intercomparison Project models. J. Geophys. Res. Ocean., 117 ( C8 ), n/a-n/a, doi:10.1029/2011JC007257 Abstract: Keywords: ECCO Products Used: ECCO2 ; SeaIceURL: http://doi.wiley.com/10.1029/2011JC007257 Other URLs:
Feng, W; Zhong, M; Xu, H Z (2012). Sea level variations in the South China Sea inferred from satellite gravity, altimetry, and oceanographic data, Science China-Earth Sciences, 10 (55), 1696-1701, 10.1007/s11430-012-4394-3. Title: Sea flush variations in the South China Sea inferred from satellite graveness, altimetry, and oceanographic data Type: Journal article Publication: Science China-Earth Sciences Author(s): Feng, W ; Zhong, M ; Xu, H Z Year: 2012 Formatted Citation: Feng, W., M. Zhong, and H. Z. Xu, 2012 : Sea level variations in the South China Sea inferred from satellite gravity, altimetry, and oceanographic data. Science China-Earth Sciences, 55 ( 10 ), 1696-1701, doi:10.1007/s11430-012-4394-3 Abstract: Sea charge variations ( SLVs ) can be divided into two major components : the steric SLV and the mass-induced SLV. These two components of SLV in the South China Sea ( SCS ) are studied by using satellite altimetry, GRACE ( Gravity Recovery and Climate Experiment ) satellite gravity, and oceanographic data on annual and inter-annual timescales. On the annual timescale, the geographic distribution of mass-induced SLV ‘s amplitude jointly estimated from altimetry and the ECCO ( Estimation of the Circulation and Climate of the Ocean ) model agrees identical well with that from GRACE. GRACE observes obvious seasonal mass-induced SLV in the SCS with annual amplitude of 2.7 +/- 0.4 curium, which is consistent with the annual amplitude of 2.7 +/- 0.3 curium estimated from the steric-corrected altimetry. On the inter-annual timescales, the mean SLV in the SCS shows a large cycle, which is chiefly caused by the steric effect. The swerve of mean SLV inferred from altimetry in the SCS is 5.5 +/- 0.7 mm/yr for the period of 1993-2009, which is significantly higher than the global sea flat surface rate of 3.3 +/- 0.4 mm/yr in the same period. There is no obvious vogue signal in the mass-induced SLV detected from GRACE that indicates the water exchange between the SCS and its adjacent seas and bring is in balance within the study menstruation. Keywords: ECCO, GRACE, altimetry, annual motorbike, circulation, grace, inference, mass, ocean, sea tied pas seul, open height, the South China Sea, topex/poseidon, trends, variability ECCO Products Used: ECCO-KFS URL: Other URLs:
Volkov, Denis L.; Zlotnicki, Victor (2012). Performance of GOCE and GRACE-derived mean dynamic topographies in resolving Antarctic Circumpolar Current fronts, Ocean Dynamics, 6 (62), 893-905, 10.1007/s10236-012-0541-9. Title: Performance of GOCE and GRACE-derived mean dynamic topographies in resolving Antarctic Circumpolar Current fronts Type: Journal article Publication: Ocean Dynamics Author(s): Volkov, Denis L. ; Zlotnicki, Victor Year: 2012 Formatted Citation: Volkov, D. L., and V. Zlotnicki, 2012 : performance of GOCE and GRACE-derived mean dynamic topographies in resolving Antarctic Circumpolar Current fronts. Ocean Dynamics, 62 ( 6 ), 893-905, doi:10.1007/s10236-012-0541-9 Abstract: soon, two satellite missions, Gravity Recovery and Climate Experiment ( GRACE ) and Gravity battlefield and steady-state Ocean Circulation Explorer ( GOCE ), are making detail measurements of the Earth ‘s gravity field, from which the geoid can be obtained. The beggarly dynamic topography ( MDT ) is the deviation between the time-averaged sea airfoil stature and the geoid. The GOCE mission is aimed at determining the geoid with superior accuracy and spatial solution, so that a more accurate MDT can be estimated. In this study, we determine the mean positions of the Antarctic Circumpolar Current fronts using the strictly geodetic estimates of the MDT constructed from an altimetric mean sea surface and GOCE and GRACE geoids. Overall, the frontal positions obtained from the GOCE and GRACE MDTs are close to each early. This means that these independent estimates are robust and can potentially be used to validate frontal positions obtained from sparse and guerrilla in situ measurements. The geodetic frontal positions are compared to earlier estimates a well as to those derived from MDTs based on satellite and in situ measurements and those obtained from an ocean data synthesis merchandise. The place of the Sub-Antarctic Front identified in the GOCE MDT is found to be in good agreement with the former estimates than that identified in the GRACE MDT. The geostrophic velocities derived from the GOCE MDT are besides closer to observations than those derived from the GRACE MDT. Our results thus show that the GOCE mission represents an improvement upon GRACE in terms of the time-averaged geoid. Keywords: ECCO Products Used: ECCO2URL: http://dx.doi.org/10.1007/s10236-012-0541-9 Other URLs:
Göttl, F.; Schmidt, M.; Heinkelmann, R.; Savcenko, R.; Bouman, J. (2012). Combination of gravimetric and altimetric space observations for estimating oceanic polar motion excitations, Journal of Geophysical Research: Oceans, C10 (117), 10.1029/2012JC007915. Title: Combination of hydrometric and altimetric space observations for estimating oceanic polar motion excitations Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Göttl, F. ; Schmidt, M. ; Heinkelmann, R. ; Savcenko, R. ; Bouman, J. Year: 2012 Formatted Citation: Göttl, F., M. Schmidt, R. Heinkelmann, R. Savcenko, and J. Bouman, 2012 : combination of hydrometric and altimetric quad observations for estimating oceanic arctic motion excitations. J. Geophys. Res. Ocean., 117 ( C10 ), doi:10.1029/2012JC007915 Abstract: Global active processes cause variations in the Earth ‘s rotation, which are monitored by respective geometric observation techniques such as Global Navigation Satellite Systems ( GNSS ), Satellite Laser Ranging ( SLR ), and very long Baseline Interferometry ( VLBI ) with millimeter accuracy. The integral effect on Earth rotation of mass displacements and movement is therefore precisely known, but the separation of contributions from particular geodynamic processes remains a challenge. here we show that the oceanic multitude consequence on Earth rotation can be derived from both fourth dimension varying gravity discipline solutions from the Gravity Recovery And Climate Experiment ( GRACE ) and sea grade anomalies ( SLA ) observed from satellite altimeter missions. The GRACE solutions require trickle and the lotion of an ocean mask, whereas the SLA motivation to be corrected for the steric effect as polar motion is only affected by mass redistributions. We assess the accuracy of our oceanic diametric apparent motion excitations by using GRACE and SLA solutions from different process centers. In addition, we compare polar motion excitations from GRACE, satellite altimeter data and their combinations with excitations estimated from ocean models. We show that the combination of hydrometric and altimetric solutions reduces taxonomic errors of the individual solutions. The combine solutions are about 2 times more accurate than ocean model results and approximately 3 times more accurate than the alleged repress geodetic excitement functions. We anticipate our psychoanalysis to be valuable input for improved mold of oceanic bulk redistributions. Keywords: ECCO Products Used: ECCO-KFSURL: http://doi.wiley.com/10.1029/2012JC007915 Other URLs:
Zhang, Xuebin; Cornuelle, Bruce; Roemmich, Dean (2012). Sensitivity of Western Boundary Transport at the Mean North Equatorial Current Bifurcation Latitude to Wind Forcing, Journal of Physical Oceanography, 11 (42), 2056-2072, 10.1175/JPO-D-11-0229.1. Title: Sensitivity of Western Boundary Transport at the Mean North Equatorial Current Bifurcation Latitude to Wind Forcing Type: Journal article Publication: Journal of Physical Oceanography Author(s): Zhang, Xuebin ; Cornuelle, Bruce ; Roemmich, Dean Year: 2012 Formatted Citation: Zhang, X., B. Cornuelle, and D. Roemmich, 2012 : sensitivity of western Boundary Transport at the Mean North Equatorial Current Bifurcation Latitude to Wind Forcing. Journal of Physical Oceanography, 42 ( 11 ), 2056-2072, doi:10.1175/JPO-D-11-0229.1 Abstract: Keywords: ECCO Products Used: Adjoint ; SOSEURL: http://journals.ametsoc.org/doi/abs/10.1175/JPO-D-11-0229.1 Other URLs:
Mazloff, Matthew R (2012). On the Sensitivity of the Drake Passage Transport to Air-Sea Momentum Flux, Journal of Climate, 7 (25), 2279-2290, 10.1175/JCLI-D-11-00030.1. Title: On the Sensitivity of the Drake Passage Transport to Air-Sea Momentum Flux Type: Journal article Publication: Journal of Climate Author(s): Mazloff, Matthew R Year: 2012 Formatted Citation: Mazloff, M. R., 2012 : On the Sensitivity of the Drake Passage Transport to Air-Sea Momentum Flux. J. Clim., 25 ( 7 ), 2279-2290, doi:10.1175/JCLI-D-11-00030.1 Abstract: An eddy-permitting state estimate and its adjoint are used to analyze the influence of wreathe stress perturbations on the transport of the Antarctic Circumpolar Current ( ACC ) system through Drake Passage. The transport is found to be medium to wind tension perturbations both along the ACC path and besides in distant regions. The clock time scale of influence of wind try perturbations is on the order of 100 days. Regarding spatial scales, the sensitivity of transport to wind stress is relatively legato in regions of directly topography. In boundary regions and regions with complex topography, however, the sensitivity is enhanced and characterized by shorter distance scales of order 100 kilometer. positivist perturbations to the zonal tip stress normally increase the ACC tape drive, though the wind stress lock is of primary influence where the currents are steered by topography. Highlighting locations where the ACC is particularly responsive to air-sea momentum flux density reveals where an accurate determination of atmospheric winds may best enhance ocean modeling efforts. Keywords: annular modality, antarctic circumpolar stream, force circulations, general-circulation model, ocean, function one, stick out, southern-hemisphere winds, topography, unevenness ECCO Products Used: SOSEURL: http://journals.ametsoc.org/doi/10.1175/JCLI-D-11-00030.1 Other URLs:
Rignot, E; Fenty, Ian; Menemenlis, Dimitris; Xu, Y (2012). Spreading of warm ocean waters around Greenland as a possible cause for glacier acceleration, Annals of Glaciology, 60 (53), 257-266, 10.3189/2012AoG60A136. Title: Spreading of warm ocean waters around Greenland as a possible cause for glacier acceleration Type: Journal article Publication: Annals of Glaciology Author(s): Rignot, E ; Fenty, Ian ; Menemenlis, Dimitris ; Xu, Y Year: 2012 Formatted Citation: Rignot, E., I. Fenty, D. Menemenlis, and Y. Xu, 2012 : go around of warm ocean waters around Greenland as a possible causal agent for glacier acceleration. Annals of Glaciology, 53 ( 60 ), 257-266, doi:10.3189/2012AoG60A136 Abstract: We examine the pattern of spread of warm subtropical-origin waters around Greenland for the years 1992-2009 using a high-resolution ( 4 kilometer horizontal grid ) coupled ocean and sea-ice simulation. The model, provided by the Estimating the Circulation and Climate of the Ocean, Phase II ( ECCO2 ) project, qualitatively reproduces the observe calefacient of subsurface waters in the subpolar coil associated with changes of the North Atlantic atmospheric department of state that occurred in the mid-1990s. The model subsurface ocean temperature warmed by 1.5°C in southeast and southwest Greenland during 1994-2005 and subsequently cooled by 0.5°C ; modeled subsurface ocean temperature increased by 2-2.5°C in cardinal and then northwest Greenland during 1997-2005 and stabilized thereafter, while it increased after 2005 by < 0.5°C in north Greenland. Comparisons with in situ measurements off the continental shelf in the Labrador and Irminger Seas indicate that the model initial conditions were 0.4°C besides warm in the south but the imitate thaw is correctly reproduced ; while measurements from easterly Baffin Bay reveal that the mannequin initial conditions were 1.0°C besides cold in the northwest but the simulated ocean warming brought model temperature cheeseparing to observations, i.e. the imitate warming is 1.0°C besides big. At several key locations, the modeled oceanic changes off the shelf and below the seasonal worker interracial layer were quickly transmitted to the ledge within troughs towards ( model-unresolved ) fjords. Unless blocked in the fjords by shallow sills, these warm subsurface waters had electric potential to propagate down the fjords and melt the glacier fronts. Based on model sensitivity simulations from an freelancer study ( Xu and others, 2012 ), we show that the oceanic changes have very probably increased the subaqueous dissolve rates of the glacier fronts, and in turn impacted the rates of glacier stream. Keywords: ECCO Products Used: ECCO2 ; IceSheet URL: Other URLs:
Mata, Aitor; Muñoz, M. Dolores; Corchado, Emilio; Corchado, Juan M. (2012). Isotropic Image Analysis for Improving CBR Forecasting, Journal of Mathematical Imaging and Vision, 2-3 (42), 212-224, 10.1007/s10851-011-0315-x. Title: Isotropic Image Analysis for Improving CBR Forecasting Type: Journal article Publication: Journal of Mathematical Imaging and Vision Author(s): Mata, Aitor ; Muñoz, M. Dolores ; Corchado, Emilio ; Corchado, Juan M. Year: 2012 Formatted Citation: Mata, A., M. D. Muñoz, E. Corchado, and J. M. Corchado, 2012 : Isotropic Image Analysis for Improving CBR Forecasting. Journal of Mathematical Imaging and Vision, 42 ( 2-3 ), 212-224, doi:10.1007/s10851-011-0315-x Abstract: Keywords: ECCO Products Used: ECCO2URL: http://link.springer.com/10.1007/s10851-011-0315-x Other URLs:
Volkov, Denis L.; Pujol, M Isabelle (2012). Quality assessment of a satellite altimetry data product in the Nordic, Barents, and Kara seas, Journal of Geophysical Research: Oceans, C3 (117), 10.1029/2011JC007557. Title: Quality assessment of a satellite altimetry data product in the Nordic, Barents, and Kara seas Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Volkov, Denis L. ; Pujol, M Isabelle Year: 2012 Formatted Citation: Volkov, D. L., and M. I. Pujol, 2012 : Quality assessment of a satellite altimetry data product in the Nordic, Barents, and Kara seas. J. Geophys. Res. Ocean., 117 ( C3 ), doi:10.1029/2011JC007557 Abstract: Satellite altimetry provides high-quality ocean coat height data that have been successfully used to study the variability of sea level and come on geostrophic circulation at different spatial and worldly scales. however, the high-latitude regions have traditionally been avoided due to the persistent sea internal-combustion engine cover. Most of the validation studies have focused on the areas below the polar circles. In this newspaper we examine the timbre and performance of a gridded satellite altimetry product in the Nordic, Barents, and Kara seas. The altimetric sea level in coastal areas is validate using available tide gauge records. We show that at most locations in the Nordic seas the altimetry and tide gauge measurements are in a good agreement in terms of the root-mean square differences and the amplitudes and phases of the seasonal worker hertz. The agreement deteriorates in the shallow areas of the Barents and Kara seas subject to the seasonal worker presence of ocean internal-combustion engine, and where the altimetry data are contaminated by the residual aliasing of open high-frequency signals. The comparison of linear trends at the locations of tide gauges reveals discrepancies that need to be taken into account when interpreting long-run changes of sea level in the region. away from the coast the altimetry data are compared to drifter trajectories, corrected for Ekman currents. The vagrant trajectories are found coherent with the mesoscale variability of the altimetric sea degree. This report provides the first comprehensive validation of a gridded satellite altimetry data merchandise in the high-latitude seas. Keywords: 4207 Arctic and Antarctic oceanography, 4262 Ocean observing systems, 4275 Remote sensing and electromagnetic processes, 4556 Sea flat : variations and mean, Arctic seas, Nordic seas, sea flat, surface drifters, tide gauges, validation of altimetry data ECCO Products Used: ECCO2URL: http://dx.doi.org/10.1029/2011JC007557 Other URLs:
Griesel, A; Mazloff, M R; Gille, S T (2012). Mean dynamic topography in the Southern Ocean: Evaluating Antarctic Circumpolar Current transport, J. Geophys. Res., C1 (117), 2156-2202, 10.1029/2011JC007573. Title: Mean dynamic topography in the southerly Ocean : Evaluating Antarctic Circumpolar Current transport Type: Journal article Publication: J. Geophys. Res. Author(s): Griesel, A ; Mazloff, M R ; Gille, S T Year: 2012 Formatted Citation: Griesel, A., M. R. Mazloff, and S. T. Gille, 2012 : entail dynamic topography in the southerly Ocean : Evaluating Antarctic Circumpolar Current conveyance. J. Geophys. Res., 117 ( C1 ), 2156-2202, doi:10.1029/2011JC007573 Abstract: Mean Dynamic Ocean Topography ( MDT ) is the remainder between the time-averaged ocean surface altitude and the geoid. Combining sea charge and geoid measurements, which are both attained chiefly by satellite, is complicated by ocean variability and differences in single-minded spatial scales. Accurate cognition of the MDT is particularly difficult in the southerly Ocean as this area is characterized by high temporal unevenness, relatively short spatial scales, and a lack of in situ graveness observations. In this study, four recent Southern Ocean MDT products are evaluated along with an MDT diagnosed from a southern Ocean state estimate. MDT products differ in some locations by more than the noun phrase error bars. Attempts to decrease this discrepancy by accounting for temporal differences in the time menstruation each merchandise represents were unsuccessful, probably due to issues regarding resolved spatial scales. The mean mass transportation of the Antarctic Circumpolar Current ( ACC ) system can be determined by combining the MDT products with climatological ocean density fields. On modal, MDT products predict higher ACC transports than inferred from observations. More importantly, the MDT products imply an unrealistic lack of mass conservation that can not be explained by the a priori uncertainties. MDT estimates can possibly be improved by accounting for an ocean batch balance constraint. Keywords: 1222 Geodesy and Gravity : ocean monitor with germanium, 1222 ), 1641, 3010, 4203 oceanography : general : analytic modeling a, 4260 oceanography : general : Ocean data assimilati, 4512 oceanography : physical : Currents, 4532, 4532 oceanography : physical : general circulation, 4556, 4560, 6959 ), Data acculturation, Mean ocean level, Southern Ocean, antarctic circumpolar current, geoid, average dynamic topography ECCO Products Used: SOSE URL: Other URLs:
Borstad, C P; Khazendar, A; Larour, E; Morlighem, M; Rignot, E; Schodlok, M P; Seroussi, Hélène (2012). A damage mechanics assessment of the Larsen B ice shelf prior to collapse: Toward a physically-based calving law, Geophysical Research Letters, 18 (39), 10.1029/2012GL053317. Title: A damage mechanics appraisal of the Larsen B ice shelf prior to collapse : Toward a physically-based calve jurisprudence Type: Journal article Publication: Geophysical Research Letters Author(s): Borstad, C P ; Khazendar, A ; Larour, E ; Morlighem, M ; Rignot, E ; Schodlok, M P ; Seroussi, Hélène Year: 2012 Formatted Citation: Borstad, C. P., A. Khazendar, E. Larour, M. Morlighem, E. Rignot, M. P. Schodlok, and H. Seroussi, 2012 : A price mechanics assessment of the Larsen B ice shelf prior to crack up : Toward a physically-based calve law. Geophys. Res. Lett., 39 ( 18 ), doi:10.1029/2012GL053317 Abstract: Calving is a primary coil summons of bulk ablation for glaciers and ice sheets, though it still eludes a cosmopolitan forcible police. here, we propose a calve framework based on continuum damage mechanics coupled with the equations of syrupy distortion of glacier frost. We introduce a scalar damage varying that quantifies the loss of load-bearing surface sphere due to fractures and that feeds back with methamphetamine viscosity to represent fracture-induced dampen. The calve law is a standard bankruptcy standard for syrupy damaging materials and represents a macroscopic brittle instability quantified by a critical or threshold damage. We constrain this doorway using the Ice Sheet System Model ( ISSM ) by inverting for damage on the Larsen B ice shelf prior to its 2002 crash. By analyzing the damage distribution in areas that subsequently calved, we conclude that calving occurs after fractures have reduced the load-bearing capacity of the frosting by 60 ± 10 %. Keywords: 0728 Ice shelves, 0732 Icebergs, 0776 Glaciology, 0798 Modeling, calving, damage mechanics, glaciology, inverse methods ECCO Products Used: ECCO2 ; IceSheetURL: http://dx.doi.org/10.1029/2012GL053317 Other URLs:
Jahn, A.; Aksenov, Y.; de Cuevas, B. A.; de Steur, L.; Häkkinen, S.; Hansen, E.; Herbaut, C.; Houssais, M.-N.; Karcher, M.; Kauker, F.; Lique, C.; Nguyen, A.; Pemberton, P.; Worthen, D.; Zhang, J. (2012). Arctic Ocean freshwater: How robust are model simulations?, Journal of Geophysical Research: Oceans, C8 (117), 10.1029/2012JC007907. Title: Arctic Ocean fresh water : How robust are model simulations ? Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Jahn, A. ; Aksenov, Y. ; de Cuevas, B. A. ; de Steur, L. ; Häkkinen, S. ; Hansen, E. ; Herbaut, C. ; Houssais, M.-N. ; Karcher, M. ; Kauker, F. ; Lique, C. ; Nguyen, A. ; Pemberton, P. ; Worthen, D. ; Zhang, J. Year: 2012 Formatted Citation: Jahn, A. and Coauthors, 2012 : arctic Ocean fresh water : How robust are model simulations ? J. Geophys. Res. Ocean., 117 ( C8 ), doi:10.1029/2012JC007907 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1029/2012JC007907 Other URLs:
Heimbach, P; Wunsch, C (2012). Decadal ocean (and ice) state estimation for climate research: What are the needs?, Oberwolfach Reports (9), 3451-3454, 10.4171/OWR/2012/58. Title: Decadal ocean ( and ice ) submit estimate for climate inquiry : What are the needs ? Type: Journal article Publication: Oberwolfach Reports Author(s): Heimbach, P ; Wunsch, C Year: 2012 Formatted Citation: Heimbach, P., and C. Wunsch, 2012 : Decadal ocean ( and ice ) state estimate for climate research : What are the needs ? Oberwolfach Reports, 9, 3451-3454, doi:10.4171/OWR/2012/58 Abstract: Keywords: ECCO Products Used: URL: Other URLs:
Yang, Duo; Saenko, Oleg A. (2012). Ocean Heat Transport and Its Projected Change in CanESM2, Journal of Climate, 23 (25), 8148-8163, 10.1175/JCLI-D-11-00715.1. Title: Ocean Heat Transport and Its Projected Change in CanESM2 Type: Journal article Publication: Journal of Climate Author(s): Yang, Duo ; Saenko, Oleg A. Year: 2012 Formatted Citation: Yang, D., and O. A. Saenko, 2012 : Ocean Heat Transport and Its Projected Change in CanESM2. J. Clim., 25 ( 23 ), 8148-8163, doi:10.1175/JCLI-D-11-00715.1 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/abs/10.1175/JCLI-D-11-00715.1 Other URLs:
Schodlok, Michael P; Menemenlis, Dimitris; Rignot, Eric; Studinger, Michael (2012). Sensitivity of the ice-shelf/ocean system to the sub-ice-shelf cavity shape measured by NASA IceBridge in Pine Island Glacier, West Antarctica, Annals of Glaciology, 60 (53), 156-162, 10.3189/2012AoG60A073. Title: Sensitivity of the ice-shelf/ocean system to the sub-ice-shelf pit shape measured by NASA IceBridge in Pine Island Glacier, West Antarctica Type: Journal article Publication: Annals of Glaciology Author(s): Schodlok, Michael P ; Menemenlis, Dimitris ; Rignot, Eric ; Studinger, Michael Year: 2012 Formatted Citation: Schodlok, M. P., D. Menemenlis, E. Rignot, and M. Studinger, 2012 : sensitivity of the ice-shelf/ocean system to the sub-ice-shelf cavity form measured by NASA IceBridge in Pine Island Glacier, West Antarctica. Annals of Glaciology, 53 ( 60 ), 156-162, doi:10.3189/2012AoG60A073 Abstract: Two high-resolution ( 1 km grid ) numerical model simulations of the Amundsen Sea, West Antarctica, are used to study the function of the ocean in the mass loss and grounding line retreat of Pine Island Glacier. The first simulation uses BEDMAP bathymetry under the Pine Island ice ledge, and the second model uses NASA IceBridge-derived bathymetry. The IceBridge data reveal the being of a manger from the ice-shelf edge to the grounding argumentation, enabling affectionate Circumpolar Deep Water to penetrate to the anchor line, leading to higher melt rates than previously estimated. The mean fade pace for the pretense with NASA IceBridge datum is 28 milliampere -1, much higher than previous exemplar estimates but closer to estimates from distant sensing. Although the mean dissolve rate is 25 % higher than in the simulation with BEDMAP bathymetry, the temporal evolution remains unaltered between the two simulations. This indicates that temporal unevenness of melt is largely driven by processes outside the pit. spatial mellow rate patterns of BEDMAP and IceBridge simulations differ significantly, with the latter in closer agreement with satellite-derived melt rate estimates of ~50ma -1 near the anchor line. Our simulations confirm that cognition of the cavity shape and its time development are essential to accurately capture radical mass loss of Antarctic frost shelves. Keywords: altimetry, below, circulation, model, ocean, sea, thickness ECCO Products Used: ECCO2 ; IceSheetURL: https://www.cambridge.org/core/product/identifier/S0260305500251860/type/journal_article Other URLs:
Freiwald, Grit (2012). Combining stationary ocean models and mean dynamic topography data. Title: Combining stationary ocean models and think of dynamic topography data Type: Report Publication: Author(s): Freiwald, Grit Year: 2012 Formatted Citation: Freiwald, G., 2012 : Combining stationary ocean models and mean dynamic topography data., Bremerhaven, 140 pp. doi:10.2312/BzPM_0650_2012. Abstract: Keywords: ECCO Products Used: ECCO-V1 ; ECCO-V2 ; ECCO2 ; GECCOURL: http://hdl.handle.net/10013/epic.39996 Other URLs:
Ponte, Rui M (2012). An assessment of deep steric height variability over the global ocean, Geophysical Research Letters, 4 (39), 10.1029/2011GL050681. Title: An assessment of thick steric height variability over the global ocean Type: Journal article Publication: Geophysical Research Letters Author(s): Ponte, Rui M Year: 2012 Formatted Citation: Ponte, R. M., 2012 : An assessment of thick steric stature unevenness over the global ocean. Geophys. Res. Lett., 39 ( 4 ), doi:10.1029/2011GL050681 Abstract: An ocean department of state estimate constrained by most available data is explored to assess characteristics of unevenness in deep steric height-a largely unobserved quantity, yet significant for understanding the relation between sea charge, heat content and other ocean climate parameters. Results are based on monthly-averaged steric height anomalies, vertically integrated over the “ unobserved ” deep ocean ( below ∼1700 thousand ). Excluding linear trends, unevenness in deep steric height is typically 10-20 % of that in the upper ocean, with larger values seen in extensive regions. Enhanced trench unevenness, at monthly to interannual fourth dimension scales, occurs in areas of hard eddy energy. deep signals are by and large thermosteric in nature, with halosteric contributions tightly correlated and broadly compensating in the Atlantic and indian oceans and adding in the Pacific. Potential inference of bass signals from cognition of the upper ocean is hampered by poor correlations, and regressions based on upper ocean steric acme fail to represent the estimated bass unevenness. monthly sampling at ∼2° scales would allow for best decision of deep variability and retentive condition trends. Keywords: 4215 Climate and interannual variability, 4260 Ocean data acculturation and reanalysis, 4262 Ocean observing systems, 4520 Eddies and mesoscale processes, 4556 Sea level : variations and mean, deep ocean, steric stature ECCO Products Used: ECCO2URL: http://dx.doi.org/10.1029/2011GL050681 Other URLs:
Passos, Elisa Nóbrega; Sancho, Lívia Maria Barbosa; Decco, Hatsue Takanaka de; Assad, Luiz Paulo; Landau, Luiz (2012). Analysis of Ocean Circulation Behavior and Atmospheric Events of El Niño and La Niña, Congresso Brasileiro de Oceanografia – CBOʹ2012, 2407-2413. Title: analysis of Ocean Circulation Behavior and Atmospheric Events of El Niño and La Niña Type: Conference Proceedings Publication: Congresso Brasileiro de Oceanografia – CBOʹ2012 Author(s): Passos, Elisa Nóbrega ; Sancho, Lívia Maria Barbosa ; Decco, Hatsue Takanaka de ; Assad, Luiz Paulo ; Landau, Luiz Year: 2012 Formatted Citation: The El Niño Southern Oscillation and La Niña are phenomenon capable of change significantly the world climate. Through currents and wind surface anomaly fields obtained from results of a high settlement ocean model and the NCEP/NCAR reanalysis data, it was possible to identify intensifications and helplessness of respective atmospheric and oceanographic features. Abstract: The El Niño Southern Oscillation and La Niña are phenomenon adequate to of alter importantly the world climate. Through currents and wind coat anomaly fields obtained from results of a high resolution ocean model and the NCEP/NCAR reanalysis data, it was possible to identify intensifications and helplessness of several atmospheric and oceanographic features. Keywords: anomaly, current, wind ECCO Products Used: ECCO2URL: https://www.researchgate.net/profile/Hatsue_Decco/publication/259597389_ANALISE_DO_COMPORTAMENTO_DA_CIRCULACAO_OCEANICA_E_ATMOSFERICA_EM_EVENTOS_DE_EL_NINO_E_LA_NINA/links/0046352cd865f58c45000000.pdf Other URLs:
Hobbs, Will R.; Willis, Joshua K. (2012). Midlatitude North Atlantic heat transport: A time series based on satellite and drifter data, Journal of Geophysical Research: Oceans, C1 (117), 10.1029/2011JC007039. Title: Midlatitude North Atlantic hotness transportation : A clock series based on satellite and vagrant data Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Hobbs, Will R. ; Willis, Joshua K. Year: 2012 Formatted Citation: Hobbs, W. R., and J. K. Willis, 2012 : Midlatitude North Atlantic heat conveyance : A time series based on satellite and vagrant data. J. Geophys. Res. Ocean., 117 ( C1 ), doi:10.1029/2011JC007039 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1029/2011JC007039 Other URLs:
Galton-Fenzi, B. K.; Hunter, J. R.; Coleman, R.; Marsland, S. J.; Warner, R. C. (2012). Modeling the basal melting and marine ice accretion of the Amery Ice Shelf, Journal of Geophysical Research: Oceans, C9 (117), n/a-n/a, 10.1029/2012JC008214. Title: Modeling the basal thaw and marine ice accretion of the Amery Ice Shelf Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Galton-Fenzi, B. K. ; Hunter, J. R. ; Coleman, R. ; Marsland, S. J. ; Warner, R. C. Year: 2012 Formatted Citation: Galton-Fenzi, B. K., J. R. Hunter, R. Coleman, S. J. Marsland, and R. C. Warner, 2012 : Modeling the basal dissolve and marine methamphetamine accretion of the Amery Ice Shelf. J. Geophys. Res. Ocean., 117 ( C9 ), n/a-n/a, doi:10.1029/2012JC008214 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1029/2012JC008214 Other URLs:
Hill, C; Ferreira, D; Campin, Jean-Michel; Marshall, J; Abernathey, R; Barrier, N (2012). Controlling spurious diapycnal mixing in eddy-resolving height-coordinate ocean models – Insights from virtual deliberate tracer release experiments, Ocean Modelling (45-46), 14-26, 10.1016/j.ocemod.2011.12.001. Title: Controlling specious diapycnal shuffle in eddy-resolving height-coordinate ocean models – Insights from virtual consider tracer release experiments Type: Journal article Publication: Ocean Modelling Author(s): Hill, C ; Ferreira, D ; Campin, Jean-Michel ; Marshall, J ; Abernathey, R ; Barrier, N Year: 2012 Formatted Citation: Hill, C., D. Ferreira, J. Campin, J. Marshall, R. Abernathey, and N. Barrier, 2012 : Controlling specious diapycnal shuffle in eddy-resolving height-coordinate ocean models – Insights from virtual careful tracer liberation experiments. Ocean Modelling, 45-46, 14-26, doi:10.1016/j.ocemod.2011.12.001 Abstract: A sensed limitation of z-coordinate models associated with inauthentic diapycnal mix in eddying, facade flow, can be promptly addressed through appropriate attention to the tracer advection schemes employed. It is demonstrated that tracer advection schemes developed by Prather and collaborators for application in the stratosphere, greatly improve the fidelity of eddying flows, reducing levels of bastardly diapycnal mix to below those immediately measured in airfield experiments, alike to 1 x 10 ( -5 ) thousand ( 2 ) south ( -1 ). This approach yields a model in which geostrophic eddies are quasi-adiabatic in the ocean inside, so that the residual-mean overturn circulation aligns about absolutely with concentration contours. A re-entrant transmit configuration of the MIT General Circulation Model, that approximates the Antarctic Circumpolar Current, is used to examine these issues. virtual analogs of ocean debate tracer exhaust field experiments reinforce our conclusion, producing passive tracer solutions that parallel field experiments signally well. ( C ) 2011 Elsevier Ltd. All rights reserved. Keywords: Adiabatic, Advection, Diapyncnal mix, Numerical mix, Ocean model, Southern, south-polar circumpolar current, circulation, conservation, numerical advection, ocean, parameterization, pycnocline, schemes, southern-ocean, transportation, variability ECCO Products Used: URL: Other URLs:
Funke, Simon W. (2012). The automation of PDE-constrained optimisation and its applications. Title: The automation of PDE-constrained optimization and its applications Type: dissertation Publication: Author(s): Funke, Simon W. Year: 2012 Formatted Citation: Funke, S. W., 2012 : The automation of PDE-constrained optimization and its applications., 207 pp. Abstract: This thesis is concerned with the automation of solving optimization prob- lems constrained by overtone derived function equations ( PDEs ). Gradient-based optimization algorithms are the key to solve optimization problems of prac- baht interest. The ask derivatives can be efficiently computed with the adjoint approach. however, current methods for the development of adjoint models frequently require a significant measure of feat and expertness, in especial for non-linear time-dependent problems. This work presents a new high-level reinterpretation of algorithmic dif- ferentiation to develop adjoint models. This reinterpretation considers the discrete system as a sequence of equation solves. Applying this set about to a general finite-element framework results in an automatic pistol and robust way of deriving and solving adjoint models. This drastically reduces the development effort compared to traditional methods. Based on this result, a new framework for quickly defining and solving optimization problems constrained by PDEs is developed. The user spec- ifies the discrete optimization problem in a compendious high-level language that resembles the mathematical social organization of the fundamental system. All remaining steps, including parameter updates, PDE solves and derivative computations, are performed without exploiter intervention. The model can be applied to a broad range of governing PDEs, and interfaces to diverse gradient-free and gradient-based optimization algorithm. The capabilities of this model are demonstrated through the applica- tion to two PDE-constrained optimization problems. The first is concerned with the optimum layout of turbines in tidal current farms ; this optimization trouble is one of the main challenges facing the marine renewable energy iiiindustry. The second base application applies data assimilation to reconstruct the profile of tsunami waves based on flood observations. This pro- vides the first step towards the general reconstruction of tsunami signals from satellite information. Keywords: ECCO Products Used: ECCO2URL: https://www.researchgate.net/profile/Simon_Funke/publication/268981892_The_automation_of_PDE-constrained_optimisation_and_its_applications/links/547ccce60cf2cfe203c1fcda.pdf Other URLs: hypertext transfer protocol : //hdl.handle.net/10044/1/11079
Soto-Navarro, F Javier; Criado-Aldeanueva, Francisco (2012). Model Thermohaline Trends in the Mediterranean Sea during the Last Years: A Change with Respect to the Last Decades?, The Scientific World Journal (2012), 8, 10.1100/2012/365698. Title: Model Thermohaline Trends in the Mediterranean Sea during the end Years : A switch with Respect to the last Decades ? Type: Journal article Publication: The Scientific World Journal Author(s): Soto-Navarro, F Javier ; Criado-Aldeanueva, Francisco Year: 2012 Formatted Citation: Soto-Navarro, F. J., and F. Criado-Aldeanueva, 2012 : Model Thermohaline Trends in the Mediterranean Sea during the last Years : A change with Respect to the last Decades ? The Scientific World Journal, 2012, 8, doi:10.1100/2012/365698 Abstract: temperature and salt outputs from ECCO ( years 93-09 ) and GLORYS ( years 03-09 ) models have been used to compute the thermohaline and steric ocean level trends in the surface ( 0-150 m ), intermediate ( 150 m-600 m ), and deep ( 600 m-bottom ) layers of the Mediterranean Sea. Some changes with respect to the second half of the twentieth century have been observed : the cooling of the amphetamine waters of the stallion easterly basin since 1950 seems to have vanished ; the thaw of WMDW historically reported for the second half of the survive hundred could have reversed, although there is no agreement between both models at this compass point ( trends of different sign are predicted ) ; the salinification of WMDW reported for the former decades is not observed in the south-westernmost area in the time period 93-09, and a clear change from positivist to damaging in the steric sea level vogue with respect to the menstruation 93-05 is detected ascribable to the sharply decrease steric ocean level of years 02-06. Keywords: ECCO Products Used: ECCO-KFSURL: http://dx.doi.org/10.1100/2012/365698 Other URLs:
Nastula, J; Gross, R; Salstein, D A (2012). Oceanic excitation of polar motion: Identification of specific oceanic areas important for polar motion excitation, Journal of Geodynamics (62), 16-23, 10.1016/j.jog.2012.01.002. Title: Oceanic excitation of polar motion : identification of specific oceanic areas important for polar motion excitation Type: Journal article Publication: Journal of Geodynamics Author(s): Nastula, J ; Gross, R ; Salstein, D A Year: 2012 Formatted Citation: Nastula, J., R. Gross, and D. A. Salstein, 2012 : oceanic excitation of polar gesticulate : identification of specific oceanic areas authoritative for polar motion excitation. Journal of Geodynamics, 62, 16-23, doi:10.1016/j.jog.2012.01.002 Abstract: In this composition regional values of the oceanic excitement function of pivotal motion are computed from penetrate coerce and oceanic stream fields from the ECCO/JPL data-assimilating model kf080 for the period 1993-2009. The influence of different geographic regions of the ocean on the excitation of polar gesticulate is determined by calculating correlations and covariances between these regional excitations and either the global non-atmospheric excitement or the ball-shaped oceanic excitation. The non-atmospheric excitement is estimated by subtracting the atmospheric signal from the excitation computed from geodetic observations of arctic gesture ; the global oceanic excitation serve is equivalent to the sum of the oceanic excitation affair computed in every grid point. Our attention focuses on the regional distribution of the oceanic polar gesticulate excitement for two time scales : the seasonal worker apparitional band and the band around the Chandler period. We identified the southerly amerind Ocean and the South Pacific Ocean as authoritative regions for non-atmospheric pivotal motion excitation. The maximum of variability over the southern indian Ocean is particularly important in the case of annual oscillation. The Atlantic Ocean makes less significant contribution to the non-atmospheric diametric motion excitement than the Pacific and indian Ocean in both considered spectral ranges. Inland seas like the Mediterranean and the Sea of Japan have high covariance with the ball-shaped signals. ( C ) 2012 Elsevier Ltd. All rights reserved. Keywords: Non-atmospheric excitation, Oceanic excitement, atmospheric angular-momentum, chandler-wobble, earth, models, unevenness ECCO Products Used: ECCO-KFS URL: Other URLs:
Dutkiewicz, Stephanie (2012). Power in Modeling Virtual Marine Microbes, Microbe Magazine, 7 (7), 314-319, 10.1128/microbe.7.314.1. Title: Power in Modeling Virtual Marine Microbes Type: Journal article Publication: Microbe Magazine Author(s): Dutkiewicz, Stephanie Year: 2012 Formatted Citation: Dutkiewicz, S., 2012 : power in Modeling Virtual Marine Microbes. Microbe Magazine, 7 ( 7 ), 314-319, doi:10.1128/microbe.7.314.1 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://www.asmscience.org/content/journal/microbe/10.1128/microbe.7.314.1 Other URLs:
Boehm, S.; Nilsson, T.; Schindelegger, M.; Schuh, H. (2012). Atmospheric and oceanic excitation of Earth rotation, Proceedings of the Journées 2011 “Systèmes de référence spatio-temporels” (JSR2011): Earth rotation, reference systems and celestial mechanics: Synergies of geodesy and astronomy, 101-106. Title: Atmospheric and oceanic excitation of Earth rotation Type: Conference Proceedings Publication: Proceedings of the Journées 2011 “ Systèmes de référence spatio-temporels ” ( JSR2011 ) : earth rotation, character systems and celestial mechanics : Synergies of geodesy and astronomy Author(s): Boehm, S. ; Nilsson, T. ; Schindelegger, M. ; Schuh, H. Year: 2012 Formatted Citation: Boehm, S., T. Nilsson, M. Schindelegger, and H. Schuh, 2012 : Atmospheric and oceanic excitement of Earth rotation. Proceedings of the Journées 2011 “ Systèmes de référence spatio-temporels ” ( JSR2011 ) : earth rotation, reference systems and celestial mechanics : Synergies of geodesy and astronomy, H. Schuh, S. Boehm, T. Nilsson, and N. Capitaine, Eds. Vienna University of Technology, Vienna, Austria, 101-106 pp. hypertext transfer protocol : //syrte.obspm.fr/jsr/journees2011/pdf/boehm.pdf. Abstract: All kinds of mass variations in the Earth ‘s surface fluids consequently change the tensor of inactiveness, while moving particles in wind or current flows induce proportional angular momentum. Via interaction with the solid earth, both matter and gesticulate effects cause fluctuations in the management of the Earth ‘s rotation axis, signified as polar motion, deoxyadenosine monophosphate well as changes in the angular speed, expressed, e.g. in terms of duration of day ( LOD ). This newspaper gives an overview of the most important atmospheric and oceanic effects on arctic apparent motion and LOD from subdaily to multi-annual time scales and discusses the variable agreement between the experimental evidence of excitation effects and their corresponding geophysical models. extra emphasis, including a brief outline of holocene results, is placed on tidal phenomenon and in particular on those caused by light time period ocean tides. Keywords: ECCO Products Used: ECCO-KFSURL: http://syrte.obspm.fr/jsr/journees2011/pdf/boehm.pdf Other URLs:
Ray, Richard D.; Egbert, Gary D. (2012). Fortnightly Earth rotation, ocean tides and mantle anelasticity, Geophysical Journal International, 1 (189), 400-413, 10.1111/j.1365-246X.2012.05351.x. Title: fortnightly Earth rotation, ocean tides and blanket anelasticity Type: Journal article Publication: Geophysical Journal International Author(s): Ray, Richard D. ; Egbert, Gary D. Year: 2012 Formatted Citation: Ray, R. D., and G. D. Egbert, 2012 : fortnightly Earth rotation, ocean tides and mantle anelasticity. Geophysical Journal International, 189 ( 1 ), 400-413, doi:10.1111/j.1365-246X.2012.05351.x Abstract: This sketch of the fortnightly Mf tide comprises three independent topics : ( 1 ) a raw determination of the fortnightly component of polar movement and duration of day ( LOD ) from a multidecade time-series of note space-geodetic data ; ( 2 ) the use of the polar apparent motion determination as one restraint in the development of a hydrodynamic ocean model of the Mf tide and ( 3 ) the use of these results to place new constraints on cape anelasticity at the Mf tidal menstruation. Our model of the Mf ocean tide assimilates more than 14 years of altimeter data from the Topex/Poseidon and Jason-1 satellites. Because the Mf altimetric signal-to-noise ratio ratio is very little, it is critical that altimeter data not be overweighted. The polar gesture data, plus tide-gauge data and mugwump altimeter data, give useful extra information, with only the polar gesture putting constraints on tidal current velocities. The resulting ocean-tide model, plus the dominant elastic consistency tide, leaves a small residual in watch LOD caused by mantle anelasticity. The guess effective tidal Q of the anelastic consistency tide is 90 and is in production line with a ωα frequency addiction with α in the range 0.2-0.3. Keywords: Earth rotation variations, Mantle processes, Tides and planetal waves ECCO Products Used: ECCO-KFS URL: Other URLs:
Prowe, A E Friederike; Pahlow, Markus; Dutkiewicz, Stephanie; Follows, Michael J.; Oschlies, Andreas (2012). Top-down control of marine phytoplankton diversity in a global ecosystem model, Progress in Oceanography, 1 (101), 1-13, 10.1016/j.pocean.2011.11.016. Title: Top-down control condition of marine phytoplankton diverseness in a global ecosystem model Type: Journal article Publication: Progress in Oceanography Author(s): Prowe, A E Friederike ; Pahlow, Markus ; Dutkiewicz, Stephanie ; Follows, Michael J. ; Oschlies, Andreas Year: 2012 Formatted Citation: Prowe, A. E. F., M. Pahlow, S. Dutkiewicz, M. J. Follows, and A. Oschlies, 2012 : top-down master of marine phytoplankton diversity in a global ecosystem model. build up in Oceanography, 101 ( 1 ), 1-13, doi:10.1016/j.pocean.2011.11.016 Abstract: The potential of marine ecosystems to adapt to ongoing environmental change is largely unknown, making prediction of consequences for alimentary and carbon paper cycles particularly challenging. Realizing that biodiversity might influence the adaptation potential, late model approaches have identified bottom-up controls on patterns of phytoplankton diverseness regulated by alimentary handiness and seasonality. top-down control of biodiversity, however, has not been considered in depth in such models. here we demonstrate how zooplankton predation with prey-ratio based food preferences can enhance phytoplankton diversity in a ecosystem-circulation exemplary with self-assembling community structure. fake diversity increases more than threefold under discriminatory grazing relative to standard density-dependent predation, and yields better agreement with note distributions of phytoplankton diversity. The variable graze press creates refuges for less competitive phytoplankton types, which reduces exclusion and improves the representation of seasonal phytoplankton succession during blooms. The type of grazing parameterization besides has a significant impact on primary and net community production. Our results demonstrate how a simple parameterization of a zooplankton community reaction affects simulated phytoplankton community structure, diverseness and dynamics, and motivates growth of more detail representations of top-down processes essential for investigating the function of diversity in marine ecosystems. Keywords: ECCO Products Used: ECCO-V2URL: http://www.sciencedirect.com/science/article/pii/S007966111100142X Other URLs:
Sanchez-Reales, J M; Vigo, M I; Jin, S; Chao, B F (2012). Global Surface Geostrophic Ocean Currents Derived from Satellite Altimetry and GOCE Geoid, Marine Geodesy (35), 175-189, 10.1080/01490419.2012.718696. Title: Global Surface Geostrophic Ocean Currents Derived from Satellite Altimetry and GOCE Geoid Type: Journal article Publication: Marine Geodesy Author(s): Sanchez-Reales, J M ; Vigo, M I ; Jin, S ; Chao, B F Year: 2012 Formatted Citation: Sanchez-Reales, J. M., M. I. Vigo, S. Jin, and B. F. Chao, 2012 : global Surface Geostrophic Ocean Currents Derived from Satellite Altimetry and GOCE Geoid. Marine Geodesy, 35, 175-189, doi:10.1080/01490419.2012.718696 Abstract: The surface geostrophic currents ( SGC ) can be derived via the principle of geostrophy from the active stature of the ocean, or the deviation of the true, variable star sea surface altitude with respect to the Earth ‘s static geoid, both of which can be measured by geodetic means. here we calculate the Mean Dynamic Topography ( MDT ) by subtracting the geoid stature determined by the GOCE satellite mission from the Mean Sea Surface Topography ( MSST ) derived from multi-satellite ocean altimetry ( T/P, Jason 1/2, ERS-1/2, GEOSAT ). Results for SGC are compared with those obtained from a GRACE-based think of geoid, a well as with the beggarly circulation patterns from measurements done by in situ vagrant buoys and from simulations of the ECCO Ocean General Circulation Model. We found GOCE-based geoid solution clearly leads to significant improvements in the spatial resoluteness of SGC globally except in the Equatorial band where special percolate may be needed, with current velocities and spatial patterns closest to the in situ measurements of currents, compared with the GRACE-based results or ECCO exemplar simulations that give significantly weaker Values with lower spatial resolution. Keywords: GOCE, circulation, drifters, geostrophic currents, jet, mean active topography, mission, ocean circulation, ocean moral force topography, recovery, satellite altimetry, tropical pacific, speed, wind ECCO Products Used: ECCO-KFS URL: Other URLs:
Dushaw, Brian D. (2012). The 1960 Perth to Bermuda antipodal acoustic propagation experiment : A measure of a half-century of ocean warming?, Proceedings of the 35th Scandinavian Symposium on Physical Acoustics, Geilo 29 January – 1 February, April. Title: The 1960 Perth to Bermuda antipodal acoustic propagation experiment : A measure of a half-century of ocean thaw ? Type: Conference Proceedings Publication: Proceedings of the thirty-fifth scandinavian symposium on Physical Acoustics, Geilo 29 January – 1 February Author(s): Dushaw, Brian D. Year: 2012 Formatted Citation: Dushaw, B. D., 2012 : The 1960 Perth to Bermuda antipodal acoustic propagation experiment : A quantify of a half-century of ocean warming ?. Proceedings of the thirty-fifth scandinavian symposium on Physical Acoustics, Geilo 29 January – 1 February ( April ) hypertext transfer protocol : //www.ntnu.edu/documents/14687435/14716676/SSPA_2012_Dushaw_Acoustic_Propagation_Experiment_6p.pdf. Abstract: Keywords: ECCO Products Used: ECCO2URL: https://www.ntnu.edu/documents/14687435/14716676/SSPA_2012_Dushaw_Acoustic_Propagation_Experiment_6p.pdf Other URLs:
Hughes, Chris W.; Tamisiea, Mark E.; Bingham, Rory J.; Williams, Joanne (2012). Weighing the ocean: Using a single mooring to measure changes in the mass of the ocean, Geophysical Research Letters, 17 (39), 6, 10.1029/2012GL052935. Title: Weighing the ocean : Using a one mooring to measure changes in the mass of the ocean Type: Journal article Publication: Geophysical Research Letters Author(s): Hughes, Chris W. ; Tamisiea, Mark E. ; Bingham, Rory J. ; Williams, Joanne Year: 2012 Formatted Citation: Hughes, C. W., M. E. Tamisiea, R. J. Bingham, and J. Williams, 2012 : Weighing the ocean : Using a individual moor to measure changes in the mass of the ocean. Geophys. Res. Lett., 39 ( 17 ), 6, doi:10.1029/2012GL052935 Abstract: Combining ocean and ground models, we show that there is a region in the central Pacific ocean where ocean bottom blackmail is a aim measure of interannual changes in ocean mass, with a noise level for annual means below 3 mm water equivalent, and a tendency mistake below 1 mm/yr. We demon- strate this concept using existing ocean buttocks imperativeness measurements from the region, from which we extract the annual cycle of ocean mass ( amplitude 8.5 millimeter, peaking in late September ), which is in agreement with former determinations based on complex combinations of ball-shaped data sets. This method acting sidesteps a count of limitations in satellite gravity-based calculations, but its lead implemen- tation is presently limited by the preciseness of atmospheric pressure sen- sors, which suffer from significant drift. Development of a low-drift method acting to measure ocean bottom atmospheric pressure at a few sites could provide an significant geodetic restraint on the earth system. citation : Hughes, C. W., M. E. Tamisiea, R. J. Bingham, and J. Williams ( 2012 ), Weighing the ocean : Using a individual moor to measure changes in the mass of the ocean, Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1029/2012GL052935 Other URLs:
Yan, Haoming; Chao, Benjamin F. (2012). Effect of global mass conservation among geophysical fluids on the seasonal length of day variation, Journal of Geophysical Research: Solid Earth, B2 (117), 10.1029/2011JB008788. Title: Effect of global batch conservation among geophysical fluids on the seasonal worker length of day magnetic declination Type: Journal article Publication: Journal of Geophysical Research : solid earth Author(s): Yan, Haoming ; Chao, Benjamin F. Year: 2012 Formatted Citation: Yan, H., and B. F. Chao, 2012 : effect of global mass conservation among geophysical fluids on the seasonal duration of sidereal day variation. Journal of Geophysical Research : solid Earth, 117 ( B2 ), doi:10.1029/2011JB008788 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: http://doi.wiley.com/10.1029/2011JB008788 Other URLs:
Piecuch, Christopher G; Ponte, Rui M (2012). Importance of Circulation Changes to Atlantic Heat Storage Rates on Seasonal and Interannual Time Scales, Journal of Climate, 1 (25), 350-362, 10.1175/JCLI-D-11-00123.1. Title: Importance of Circulation Changes to Atlantic Heat Storage Rates on Seasonal and Interannual Time Scales Type: Journal article Publication: Journal of Climate Author(s): Piecuch, Christopher G ; Ponte, Rui M Year: 2012 Formatted Citation: Piecuch, C. G., and R. M. Ponte, 2012 : importance of Circulation Changes to Atlantic Heat Storage Rates on Seasonal and Interannual Time Scales. J. Clim., 25 ( 1 ), 350-362, doi:10.1175/JCLI-D-11-00123.1 Abstract: Ocean estrus budgets and transports are diagnosed to elucidate the importance of general circulation changes to Atlantic Ocean heat storage rates. The focus is on low- and midlatitude regions and on seasonal and interannual time scales. An estimate of the ocean submit over 1993-2004, produced by a coarse-resolution general circulation model fit to observations via the method of Lagrange multipliers, is used. meridional heat transports are foremost decomposed into contributions from time-mean and time-variable speed and temperature and second base from zonally symmetrical baroclinic ( overturning, including Ekman ) and zonally asymmetrical ( coil and early spatially correlated ) circulations. Heat storehouse rates are then ascribed to ocean-atmosphere inflame exchanges, diffusing mix, and advective processes related to the respective components of the meridional heat ecstasy. Results show that seasonal heat storage changes generally represent a local response to surface inflame inputs, but seasonal worker advective changes are besides important near the equator. Interannual heat storage rate anomalies are largely due to advection in tropical regions, whereas both open heating system fluxes and advection contribute at higher latitudes. Low-latitude advection can be chiefly attributed to zonally symmetric baroclinic circulations, but temperature variations and zonally asymmetrical flows can contribute elsewhere. A relationship between interannual heat storehouse rates in the equatorial Atlantic ‘s top 100 meter and meridional hotness ecstasy associated with the zonally symmetrical baroclinic flow is observed ; however, due in separate to the role of shallow advective processes at these latitudes, any aim relationship between sea coat temperature unevenness and heat transmit changes associated with intermediate or deep meridional overturn circulations is not clear. Keywords: Atlantic Ocean, Energy transport, Meridional overtur ECCO Products Used: URL: http://journals.ametsoc.org/doi/abs/10.1175/JCLI-D-11-00123.1 Other URLs:
Brzeziński, Aleksander; Dobslaw, Henryk; Dill, Robert; Thomas, Maik (2012). Geophysical Excitation of the Chandler Wobble Revisited. Title: Geophysical Excitation of the Chandler Wobble Revisited Type: Book section Publication: Author(s): Brzeziński, Aleksander ; Dobslaw, Henryk ; Dill, Robert ; Thomas, Maik Year: 2012 Formatted Citation: Brzeziński, A., H. Dobslaw, R. Dill, and M. Thomas, 2012 : geophysical excitation of the Chandler Wobble Revisited., 499-505, doi:10.1007/978-3-642-20338-1_60 Abstract: The 14-month Chandler shimmy is a free apparent motion of the terminal excited by geophysical processes. several recent studies demonstrated that the combination of atmospheric and oceanic excitations contains enough power at the Chandler frequency and is significantly coherent with the respect free careen. This paper is an extension of earlier studies by Brzezinski and Nastula ( Adv Space Res 30:195-200, 2002 ), Brzezinski et alabama. ( oceanic excitation of the Chandler wobble using a 50-year clock time series of ocean angular momentum. In : Adam J, Schwarz K-P ( eds ) Vistas for geodesy in the new millennium. IAG Symposia, vol 125. Springer, Berlin, pp 434-439, 2002 ) using the like method acting of analysis but other available estimates of atmospheric and oceanic excitation of pivotal motion. We besides try to assess the function of kingdom hydrology in the excitement proportion by taking into history the hydrological angular momentum estimates. Our results generally confirm earlier conclusions concerning the atmospheric and oceanic excitation. Adding the hydrological excitation is found to increase slightly the Chandler careen excitation exponent, while the improvement of coherence depends on the geophysical models under retainer. Keywords: ECCO Products Used: ECCO-KFSURL: http://link.springer.com/10.1007/978-3-642-20338-1_60 Other URLs:
Woodworth, P.L.; Hughes, C.W.; Bingham, R.J.; Gruber, T. (2012). Towards worldwide height system unification using ocean information, Journal of Geodetic Science, 4 (2), 10.2478/v10156-012-0004-8. Title: Towards cosmopolitan height system fusion using ocean information Type: Journal article Publication: Journal of Geodetic Science Author(s): Woodworth, P.L. ; Hughes, C.W. ; Bingham, R.J. ; Gruber, T. Year: 2012 Formatted Citation: Woodworth, P., C. Hughes, R. Bingham, and T. Gruber, 2012 : Towards worldwide stature system union using ocean data. Journal of Geodetic Science, 2 ( 4 ), doi:10.2478/v10156-012-0004-8 Abstract: We describe the application of ocean levelling to worldwide height system uniöcation. The survey involves a comparison of ‘geodetic ‘ and ‘ocean ‘ approaches to determination of the mean active topography ( MDT ) at the coast, from which conödence in the accuracy of stateof-the-art ocean and geoid models can be obtained. We conclude that models are consistent at the sub-decimetre degree for the regions that we have studied ( North Atlantic coastlines and islands, north american Paciöc seashore and Mediterranean ). That flat of consistency provides an calculate of the accuracy of using the ocean models to provide an MDT correction to the national datums of countries with coastlines, and thereby of achieving uniöcation. It besides provides a validation of geoid model accuracy for application to height system uniöcation in general. We show how our methods can be applied global, vitamin a long as the necessity data sets are available, and explain why such an annex of the present analyze is necessary if global height system uniöcation is to be realised. Keywords: ECCO Products Used: ECCO-V2 ; ECCO2 ; GECCOURL: http://www.degruyter.com/view/j/jogs.2012.2.issue-4/v10156-012-0004-8/v10156-012-0004-8.xml Other URLs: hypertext transfer protocol : //www.degruyter.com/view/j/jogs.2012.2.issue-4/v10156-012-0004-8/v10156-012-0004-8.xml, hypertext transfer protocol : //www.degruyter.com/downloadpdf/j/jogs.2012.2.issue-4/v10156-012
Piecuch, Christopher G; Ponte, Rui M (2012). Buoyancy-driven interannual sea level changes in the southeast tropical Pacific, Geophysical Research Letters, 5 (39), 10.1029/2012GL051130. Title: Buoyancy-driven interannual sea degree changes in the southeast tropical Pacific Type: Journal article Publication: Geophysical Research Letters Author(s): Piecuch, Christopher G ; Ponte, Rui M Year: 2012 Formatted Citation: Piecuch, C. G., and R. M. Ponte, 2012 : Buoyancy-driven interannual sea level changes in the southeast tropical Pacific. Geophys. Res. Lett., 39 ( 5 ), doi:10.1029/2012GL051130 Abstract: It is normally held that interannual-to-decadal ocean level unevenness patterns chiefly represent the ocean ‘s response to wind push. This view is based in part on modeling studies of wind-driven sea flat changes along the tropical Pacific. however, because buoyancy force ( and other generating mechanisms ) are normally ignored, this paradigm may overemphasize the role of winds. Focusing on the southeast tropical Pacific, we use a data-constrained ocean express estimate to demonstrate that distinct mechanisms-including the ocean ‘s response to buoyancy forcing ampere well as nonlinear processes-can besides contribute to interannual sea level variability. contrary to the notion that buoyancy-driven sea level changes are dynamically passive voice, such changes exhibit a powerfully nonlocal, dynamically active character, made manifest in westbound propagate waves. As exchangeable findings apply elsewhere, accurate model of interannual-to-decadal regional sea level changes requires circumstance of a diverseness of forcing mechanisms, including, but not limited to, the winds. Keywords: 1641 Sea grade switch, 4215 Climate and interannual variability, 4260 Ocean data assimilation and reanalysis, 4532 General circulation, 4556 Sea level : variations and average, buoyancy storm, ocean dynamics, regional sea level unevenness ECCO Products Used: URL: http://dx.doi.org/10.1029/2012GL051130 Other URLs:
Tank, Suzanne E; Manizza, Manfredi; Holmes, Robert Max; McClelland, James W; Peterson, Bruce J (2012). The Processing and Impact of Dissolved Riverine Nitrogen in the Arctic Ocean, Estuaries and Coasts, 2 (35), 401-415, 10.1007/s12237-011-9417-3. Title: The Processing and Impact of Dissolved Riverine Nitrogen in the Arctic Ocean Type: Journal article Publication: Estuaries and Coasts Author(s): Tank, Suzanne E ; Manizza, Manfredi ; Holmes, Robert Max ; McClelland, James W ; Peterson, Bruce J Year: 2012 Formatted Citation: Tank, S. E., M. Manizza, R. M. Holmes, J. W. McClelland, and B. J. Peterson, 2012 : The Processing and Impact of Dissolved Riverine Nitrogen in the Arctic Ocean. Estuaries and Coasts, 35 ( 2 ), 401-415, doi:10.1007/s12237-011-9417-3 Abstract: Although the Arctic Ocean is the most riverine-influenced of all of the world ‘s oceans, the importance of terrigenous nutrients in this environment is ailing understood. This survey couples estimates of circumpolar riverine food fluxes from the PARTNERS ( Pan-Arctic River Transport of Nutrients, Organic Matter, and Suspended Sediments ) project with a regionally configure version of the MIT general circulation mannequin to develop estimates of the distribution and handiness of dissolve riverine N in the Arctic Ocean, assess its importance for primary production, and compare these estimates to potential bacterial production fueled by riverine C. Because riverine dissolved organic nitrogen is remineralized lento, riverine N is available for uptake well into the open ocean. Despite this, we estimate that even when recycle is considered, riverine N may support 0.5-1.5 Tmol C year−1 of primary production, a little proportion of sum Arctic Ocean photosynthesis. rapid uptake of dissolve inorganic nitrogen coupled with relatively gamey rates of dissolved organic nitrogen regeneration in N-limited nearshore regions, however, leads to electric potential localize rates of riverine-supported photosynthesis that represent a hearty proportion of nearshore product. Keywords: ECCO Products Used: ECCO2URL: http://dx.doi.org/10.1007/s12237-011-9417-3 Other URLs:
Dayoub, N.; Edwards, S. J.; Moore, P. (2012). The Gauss-Listing geopotential value W 0 and its rate from altimetric mean sea level and GRACE, Journal of Geodesy, 9 (86), 681-694, 10.1007/s00190-012-0547-6. Title: The Gauss-Listing geopotential value W 0 and its rate from altimetric mean sea level and GRACE Type: Journal article Publication: Journal of Geodesy Author(s): Dayoub, N. ; Edwards, S. J. ; Moore, P. Year: 2012 Formatted Citation: Dayoub, N., S. J. Edwards, and P. Moore, 2012 : The Gauss-Listing geopotential value W 0 and its rate from altimetric base sea horizontal surface and GRACE. Journal of Geodesy, 86 ( 9 ), 681-694, doi:10.1007/s00190-012-0547-6 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://link.springer.com/10.1007/s00190-012-0547-6 Other URLs:
Fenoglio-Marc, L.; Rietbroek, R.; Grayek, S.; Becker, M.; Kusche, J.; Stanev, E. (2012). Water mass variation in the Mediterranean and Black Seas, Journal of Geodynamics (59-60), 168-182, 10.1016/j.jog.2012.04.001. Title: Water mass variation in the Mediterranean and Black Seas Type: Journal article Publication: Journal of Geodynamics Author(s): Fenoglio-Marc, L. ; Rietbroek, R. ; Grayek, S. ; Becker, M. ; Kusche, J. ; Stanev, E. Year: 2012 Formatted Citation: Fenoglio-Marc, L., R. Rietbroek, S. Grayek, M. Becker, J. Kusche, and E. Stanev, 2012 : Water mass variation in the Mediterranean and Black Seas. Journal of Geodynamics, 59-60, 168-182, doi:10.1016/j.jog.2012.04.001 Abstract: The mass-induced ocean level unevenness and the net mass transport between Mediterranean Sea and Black Sea are derived for the interval between August 2002 and July 2008 from satellite-based observations and from model data. We construct in each river basin two meter series representing the basin entail multitude signal in terms of equivalent body of water height. The first series is obtained from steric-corrected altimetry while the other is deduced from GRACE data corrected for the contamination by continental hydrology. The series show a dependable agreement in terms of annual and inter-annual signals, which is in line with earlier works, although different exemplar corrections influence the consistency in terms of seasonal worker bespeak and swerve. In the Mediterranean Sea, we obtain the best agreement using a steric correction from the regional oceanographic model MFSTEP and a continental hydrological escape correction derived from the ball-shaped continental hydrological mannequin WaterGAP2. The inter-annual fourth dimension series show a correlation coefficient of 0.85 and a root mean squarely ( RMS ) difference of 15. millimeter. The two estimates have like accuracy and their annual amplitude and phase agree within 3. mm and 23 days respectively. The GRACE-derived mass-induced sea level variability yields an annual amplitude of 27 ± 5. millimeter top out in December and a swerve of 5.3 ± 1.9. mm/yr, which deviates within 3. mm/yr from the altimetry-derived estimate. In the Black Sea, the series are less consistent, with lower accuracy of the GRACE-derived estimate, but still show a promise agreement considering the smaller size of the washbasin. The best agreement is realized choosing the corrections from WaterGAP2 and from the regional oceanographic exemplary NEMO. The inter-annual time series have a correlation and RMS differences of 0.68 and 55. mm, their annual amplitude and phase agree within 4. mm and 6 days respectively. The GRACE-derived seawater multitude signal has an annual amplitude of 32 ± 4. millimeter top out in April. On inter-annual fourth dimension scales, the mass-induced ocean tied unevenness is stronger than in the Mediterranean Sea, with an increase from 2003 to 2005 followed by a decrease from 2006 to 2008. Based on mass conservation, the mass-induced sea level variations, river overflow and haste subtraction dehydration are combined to derive the strait flows between the basins and with the Atlantic Ocean. At the Gibraltar pass, the net inflow varies per annum with an amplitude of 52±10×10-3Sv peaking end of September ( 1Sv=106m3s-1 ). The inflow through the Bosphorus pass displays an annual amplitude of 13±3×10-3Sv top out in the middle of March. Additionally, an increase of the Gibraltar net inflow ( 3.4±0.8×10-3Sv/yr ) is detected. © 2012 Elsevier Ltd. Keywords: Black Sea, GRACE, Mass change, Mediterranean Sea, Sea level ECCO Products Used: ECCO-KFSURL: http://dx.doi.org/10.1016/j.jog.2012.04.001 Other URLs:
Todd, Robert E.; Rudnick, Daniel L.; Mazloff, Matthew R.; Cornuelle, Bruce D.; Davis, Russ E. (2012). Thermohaline structure in the California Current System: Observations and modeling of spice variance, Journal of Geophysical Research: Oceans, C2 (117), n/a-n/a, 10.1029/2011JC007589. Title: Thermohaline structure in the California Current system : Observations and model of zest variance Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Todd, Robert E. ; Rudnick, Daniel L. ; Mazloff, Matthew R. ; Cornuelle, Bruce D. ; Davis, Russ E. Year: 2012 Formatted Citation: Todd, R. E., D. L. Rudnick, M. R. Mazloff, B. D. Cornuelle, and R. E. Davis, 2012 : Thermohaline structure in the California Current organization : Observations and model of spiciness discrepancy. J. Geophys. Res. Ocean., 117 ( C2 ), n/a-n/a, doi:10.1029/2011JC007589 Abstract: Keywords: ECCO Products Used: SOSEURL: http://doi.wiley.com/10.1029/2011JC007589 Other URLs:
Chen, J.L.; Wilson, C.R.; Zhou, Y.H. (2012). Seasonal excitation of polar motion, Journal of Geodynamics (62), 8-15, 10.1016/j.jog.2011.12.002. Title: Seasonal excitement of pivotal motion Type: Journal article Publication: Journal of Geodynamics Author(s): Chen, J.L. ; Wilson, C.R. ; Zhou, Y.H. Year: 2012 Formatted Citation: Chen, J., C. Wilson, and Y. Zhou, 2012 : seasonal excitation of polar motion. Journal of Geodynamics, 62, 8-15, doi:10.1016/j.jog.2011.12.002 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: https://linkinghub.elsevier.com/retrieve/pii/S0264370711001414 Other URLs:
Miller, M D; Adkins, J F; Menemenlis, Dimitris; Schodlok, M P (2012). The role of ocean cooling in setting glacial southern source bottom water salinity, Paleoceanography, 3 (27), 10.1029/2012PA002297. Title: The function of ocean cool in setting glacial southern source bottom body of water salt Type: Journal article Publication: Paleoceanography Author(s): Miller, M D ; Adkins, J F ; Menemenlis, Dimitris ; Schodlok, M P Year: 2012 Formatted Citation: Miller, M. D., J. F. Adkins, D. Menemenlis, and M. P. Schodlok, 2012 : The function of ocean cool in setting glacial southerly source bottomland water brininess. Paleoceanography, 27 ( 3 ), doi:10.1029/2012PA002297 Abstract: At the last Glacial Maximum ( LGM ), the brininess line between northerly source deep body of water and southern informant bottom water was reversed with respect to the contrast today. additionally, Glacial Southern Source Bottom Water ( GSSBW ) was saltier than south-polar Bottom Water ( AABW ), over and above the difference implied by the hateful sea level change. This cogitation examines to what extent coldness temperatures, through their effect on ice formation and melt, could have caused these differences. computational sensitivity experiments using a couple frosting shelf cavity-sea ice-ocean exemplar are performed in a Weddell Sea sphere, as a representative case report for bottom body of water geological formation originating from Antarctic continental shelves. ocean temperatures at the knowledge domain unfold boundaries are systematically lowered to determine the sensitivity of Weddell Sea water mass properties to a range of aplomb ocean temperatures. The steady state of matter salinities differ between experiments due to temperature-induced responses of ice shelf and sea frost liquescent and freeze, dehydration and open limit fluxes. The results of the experiments indicate that reduced ocean temperature can explain astir to 30 % of the brininess difference between GSSBW and AABW, chiefly ascribable to decrease internal-combustion engine ledge melt. The smallest and most uncover internal-combustion engine shelves, which abut pin down continental shelves, have the greatest sensitivity to the ocean temperature changes, suggesting that at the LGM there could have been a shift in geographic web site authority in buttocks urine formation. More ocean ice is formed and exported in the cold ocean experiments, but the effect of this on salt is negated by an equal magnitude reduction in dehydration. Keywords: 4207 Arctic and Antarctic oceanography, 4219 Continental ledge and slope processes, 4283 Water masses, 4926 Glacial, 4962 Thermohaline, Antarctic Bottom Water, last Glacial Maximum, Weddell Sea, ice shelves, salt, sea ice ECCO Products Used: ECCO2URL: http://dx.doi.org/10.1029/2012PA002297 Other URLs:
Xu, Y; Rignot, E; Menemenlis, Dimitris; Koppes, M (2012). Numerical experiments on subaqueous melting of Greenland tidewater glaciers in response to ocean warming and enhanced subglacial discharge, Annals of Glaciology, 60 (53), 229-234, 10.3189/2012AoG60A139. Title: Numerical experiments on subaqueous thaw of Greenland tidewater glaciers in reception to ocean warming and enhance subglacial drop Type: Journal article Publication: Annals of Glaciology Author(s): Xu, Y ; Rignot, E ; Menemenlis, Dimitris ; Koppes, M Year: 2012 Formatted Citation: Xu, Y., E. Rignot, D. Menemenlis, and M. Koppes, 2012 : numerical experiments on subaqueous thaw of Greenland tidewater glaciers in answer to ocean warming and enhance subglacial fire. Annals of Glaciology, 53 ( 60 ), 229-234, doi:10.3189/2012AoG60A139 Abstract: The largest dischargers of frosting in Greenland are glaciers that terminate in the ocean and fade in contact with sea water. Studies of ice-sheet/ocean interactions have by and large focused on melting below near-horizontal floating ice shelves. For tidewater glaciers, melting alternatively takes place along the vertical face of the calve front. here we modify the Massachusetts Institute of Technology general circulation model ( MITgcm ) to include ice melting from a calving face with the fresh water outflow at the glacier grounding agate line. We use the model to predict melt rates and their sensitivity to ocean thermal wedge and to subglacial discharge. We find that dissolve rates increase with approximately the one-third ability of the subglacial water liquefy, and increase linearly with ocean thermal wedge. Our simulations indicate that, reproducible with limited field data, melting ceases when subglacial empty is shut off, and reaches several meters per sidereal day when subglacial drop is high in the summer. These results are a beginning step toward a more realistic theatrical performance of subglacial dismissal and of ocean thermal storm on the subaqueous melt of tidewater glaciers in a numeric ocean model. Our results illustrate that the ice-front liquescent process is both complex and strongly time-dependent. Keywords: alaska, circulation, dynamics, fjord, ice ledge, overflow, sheet, terminus, waters ECCO Products Used: IceSheet URL: Other URLs:
Bolkas, D.; Fotopoulos, G.; Sideris, M. G. (2012). Referencing regional geoid-based vertical datums to national tide gauge networks, Journal of Geodetic Science, 4 (2), 10.2478/v10156-011-0050-7. Title: Referencing regional geoid-based erect datums to national tide gauge networks Type: Journal article Publication: Journal of Geodetic Science Author(s): Bolkas, D. ; Fotopoulos, G. ; Sideris, M. G. Year: 2012 Formatted Citation: Bolkas, D., G. Fotopoulos, and M. G. Sideris, 2012 : Referencing regional geoid-based erect datums to national tide gauge networks. Journal of Geodetic Science, 2 ( 4 ), doi:10.2478/v10156-011-0050-7 Abstract: Keywords: ECCO Products Used: ECCO-V2 ; ECCO2 ; GECCOURL: http://www.degruyter.com/view/j/jogs.2012.2.issue-4/v10156-011-0050-7/v10156-011-0050-7.xml Other URLs:
Dutkiewicz, Stephanie; Ward, B A; Monteiro, F; Follows, Michael J. (2012). Interconnection of nitrogen fixers and iron in the Pacific Ocean: Theory and numerical simulations, Global Biogeochemical Cycles, 1 (26), 10.1029/2011GB004039. Title: Interconnection of nitrogen fixers and iron in the Pacific Ocean : theory and numerical simulations Type: Journal article Publication: Global Biogeochemical Cycles Author(s): Dutkiewicz, Stephanie ; Ward, B A ; Monteiro, F ; Follows, Michael J. Year: 2012 Formatted Citation: Dutkiewicz, S., B. A. Ward, F. Monteiro, and M. J. Follows, 2012 : interconnection of nitrogen fixers and iron in the Pacific Ocean : theory and numerical simulations. Global Biogeochemical Cycles, 26 ( 1 ), doi:10.1029/2011GB004039 Abstract: We examine the interplay between iron issue, iron concentrations and phytoplankton communities in the Pacific Ocean. We present a theoretical model which considers the competition for cast-iron and nitrogen resources between phytoplankton to explain where nitrogen fixing autophyte ( diazotrophs, which require higher iron quotas, and have slower maximum growth ) can co-exist with other phytoplankton. The framework besides indicates that cast-iron and fixed nitrogen concentrations can be powerfully controlled by the local phytoplankton community. together with results from a three-dimensional numeral model, we characterize three distinct biogeochemical provinces : 1 ) where iron supply is very low diazotrophs are excluded, and iron-limited nondiazotrophic phytoplankton control the iron concentrations ; 2 ) a passage region where nondiazotrophic phytoplankton are nitrogen specify and control the nitrogen concentrations, but the iron issue is still excessively first gear proportional to nitrate to support diazotrophy ; 3 ) where iron supplies increase far relative to the nitrogen reservoir, diazotrophs and other phytoplankton coexist ; nitrogen concentrations are controlled by nondiazotrophs and iron concentrations are controlled by diazotrophs. The boundaries of these three provinces are defined by the pace of supply of iron relative to the add of fix nitrogen. The numerical exemplar and hypothesis provide a utilitarian creature to understand the department of state of, links between, and reaction to changes in iron provide and phytoplankton residential district structure that have been suggested by observations. Keywords: 4805 Biogeochemical cycles, 4815 Ecosystems, 4845 Nutrients and alimentary cycling, 4855 Phytoplankton, and modelin, and model, biogeographic provinces, dynamics, cast-iron cycle, marine nitrogen fixers, nitrogen cycle, processes, resource rival, structure ECCO Products Used: ECCO-V2URL: http://dx.doi.org/10.1029/2011GB004039 Other URLs:
Sánchez, L. (2012). Towards a vertical datum standardisation under the umbrella of Global Geodetic Observing System, Journal of Geodetic Science, 4 (2), 10.2478/v10156-012-0002-x. Title: Towards a vertical datum calibration under the umbrella of Global Geodetic Observing System Type: Journal article Publication: Journal of Geodetic Science Author(s): Sánchez, L. Year: 2012 Formatted Citation: Sánchez, L., 2012 : Towards a erect datum standardization under the umbrella of Global Geodetic Observing System. Journal of Geodetic Science, 2 ( 4 ), doi:10.2478/v10156-012-0002-x Abstract: Keywords: ECCO Products Used: ECCO2URL: http://www.degruyter.com/view/j/jogs.2012.2.issue-4/v10156-012-0002-x/v10156-012-0002-x.xml Other URLs:
Al-janabi, Rusul (2012). Assessment of Model Performance in Simulating Arctic Sea Ice Using Taylor Diagrams. Title: Assessment of Model Performance in Simulating Arctic Sea Ice Using Taylor Diagrams Type: thesis Publication: Author(s): Al-janabi, Rusul Year: 2012 Formatted Citation: Al-janabi, R., 2012 : appraisal of Model Performance in Simulating Arctic Sea Ice Using Taylor Diagrams. ( August ), 1-38 pp. hypertext transfer protocol : //epic.awi.de/32176/1/Al_Janabi_Master_Thesis.pdf. Abstract: Keywords: ECCO Products Used: ECCO2URL: http://epic.awi.de/32176/1/Al_Janabi_Master_Thesis.pdf Other URLs:
Sreenivas, P.; Chowdary, J. S.; Gnanaseelan, C. (2012). Impact of tropical cyclones on the intensity and phase propagation of fall Wyrtki jets, Geophysical Research Letters, 22 (39), n/a-n/a, 10.1029/2012GL053974. Title: Impact of tropical cyclones on the saturation and phase propagation of fall Wyrtki jets Type: Journal article Publication: Geophysical Research Letters Author(s): Sreenivas, P. ; Chowdary, J. S. ; Gnanaseelan, C. Year: 2012 Formatted Citation: Sreenivas, P., J. S. Chowdary, and C. Gnanaseelan, 2012 : impingement of tropical cyclones on the intensity and phase propagation of fall Wyrtki jets. Geophys. Res. Lett., 39 ( 22 ), n/a-n/a, doi:10.1029/2012GL053974 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1029/2012GL053974 Other URLs:
Nguyen, A T; Kwok, R; Menemenlis, Dimitris (2012). Source and Pathway of the Western Arctic Upper Halocline in a Data-Constrained Coupled Ocean and Sea Ice Model, Journal of Physical Oceanography, 5 (42), 802-823, 10.1175/jpo-d-11-040.1. Title: Source and Pathway of the Western Arctic Upper Halocline in a Data-Constrained Coupled Ocean and Sea Ice Model Type: Journal article Publication: Journal of Physical Oceanography Author(s): Nguyen, A T ; Kwok, R ; Menemenlis, Dimitris Year: 2012 Formatted Citation: Nguyen, A. T., R. Kwok, and D. Menemenlis, 2012 : source and Pathway of the Western Arctic Upper Halocline in a Data-Constrained Coupled Ocean and Sea Ice Model. Journal of Physical Oceanography, 42 ( 5 ), 802-823, doi:10.1175/jpo-d-11-040.1 Abstract: A match ocean and ocean ice model is used to investigate dense water ( DW ) formation in the Chukchi and Bering shelves and the pathways by which this water feeds the upper berth halocline. Two 1992-2008 data-constrained solutions at 9- and 4-km horizontal grid spacing show that 1 ) winter sea frost emergence results in brine rejection and DW formation ; 2 ) the DW flows primarily down Barrow and Central-Herald Canyons in the form of bottom-trapped, intermittent currents to depths of 50-150 molarity from the former winter to late summer seasons ; and 3 ) eddies with diameters similar to 30 kilometer carry the cold DW from the ledge pause into the Canada Basin department of the interior at depths of 50-150 m. The 4-km data-constrained solution does not show eddy transport across the Chukchi Shelf at shallow depths ; rather, advection of DW downstream of polynya regions is driven by a potent ( similar to 0.1 m south ( -1 ) ) mean current on the Chukchi Shelf. Upper halocline water ( UHW ) formation rate was obtained from two methods : one is based on satellite data and on a simpleton parameterized approach, and the other is computed from the authors ‘ model solution. The two methods yield 5740 +/- 61420 kilometer ( 3 ) year ( -1 ) and 4190-4860 +/- 61440 kilometer ( 3 ) year ( -1 ), respectively. These rates imply a halocline refilling period of 10-21 year. passive tracers besides show that urine with highest concentration forms in the Gulf of Anadyr and along the easterly siberian slide immediately north of the Bering Strait. These results provide a coherent visualize of the seasonal worker development of UHW at high spatial and temporal role resolutions and serve as a scout for improving sympathize of water-mass formation in the western Arctic Ocean. Keywords: alaskan, chukchi shelf, circulation, coastal, continental-shelf, dense water system formation, layer, offshore transport, polynya, shallow, unevenness ECCO Products Used: ECCO2 ; SeaIce URL: Other URLs:
van Dam, T; Collilieux, X; Wuite, J; Altamimi, Z; Ray, J (2012). Nontidal ocean loading: amplitudes and potential effects in GPS height time series, Journal of Geodesy, 11 (86), 1043-1057, 10.1007/s00190-012-0564-5. Title: Nontidal ocean load : amplitudes and electric potential effects in GPS height clock series Type: Journal article Publication: Journal of Geodesy Author(s): van Dam, T ; Collilieux, X ; Wuite, J ; Altamimi, Z ; Ray, J Year: 2012 Formatted Citation: avant-garde Dam, T., X. Collilieux, J. Wuite, Z. Altamimi, and J. Ray, 2012 : Nontidal ocean load : amplitudes and potential effects in GPS height time series. Journal of Geodesy, 86 ( 11 ), 1043-1057, doi:10.1007/s00190-012-0564-5 Abstract: Ocean bottom pressure ( OBP ) changes are caused by a redistribution of the ocean ‘s home aggregate that are driven by atmospheric circulation, a change in the mass enroll or leaving the ocean, and/or a change in the incorporate atmospheric mass over the ocean areas. The alone previous global analysis investigating the order of magnitude of OBP surface displacements used older OBP data sets ( van Dam et alabama. in J Geophys Res 129:507-517, 1997 ). Since then significant improvements in meteorologic wedge models used to predict OBP have been made, augmented by observations from satellite altimetry and expendable bathythermograph profiles. Using more recent OBP estimates from the Estimating the Circulation and Climate of the Ocean ( ECCO ) project, we reassess the amplitude of the bode effect of OBP on the height align prison term series from a global distribution of GPS stations. OBP-predicted load effects display an RMS break up in the acme of between 0.2 and 3.7 millimeter, larger than previously reported but distillery much smaller ( by a factor of 2 ) than the scatter observed due to atmospheric blackmail loading. Given the improvement in GPS hardware and data analysis techniques, the OBP signal is alike to the preciseness of weekly GPS acme coordinates. We estimate the effect of OBP on GPS stature coordinate clock series using the MIT reprocessed solution, mi1. When we compare the predict OBP height time series with mi1, we find that the scatter is reduced over all stations by 0.1 mm on modal with reductions deoxyadenosine monophosphate high as 0.7 millimeter at some stations. More importantly we are able to reduce the spread on 65 % of the stations investigated. The annual component of the OBP signal is creditworthy for 80 % of the reduction in disperse on average. We find that stations located close to semi-enclosed bays or seas are affected by OBP loading to a greater extent than other stations. Keywords: Annual signals, Height coordinate clock series, Loading effects, Ocean bottom pressure, distortion, displacements, grace, graveness, model, press, area, solid earth, surface, temperature ECCO Products Used: ECCO-KFS URL: Other URLs:
Graven, H D; Gruber, N; Key, R; Khatiwala, S; Giraud, X (2012). Changing controls on oceanic radiocarbon: New insights on shallow-to-deep ocean exchange and anthropogenic CO2 uptake, Journal of Geophysical Research-Oceans (117), 10.1029/2012jc008074. Title: Changing controls on oceanic radiocarbon : New insights on shallow-to-deep ocean exchange and anthropogenetic CO2 uptake Type: Journal article Publication: Journal of Geophysical Research-Oceans Author(s): Graven, H D ; Gruber, N ; Key, R ; Khatiwala, S ; Giraud, X Year: 2012 Formatted Citation: Graven, H. D., N. Gruber, R. Key, S. Khatiwala, and X. Giraud, 2012 : Changing controls on oceanic radiocarbon : New insights on shallow-to-deep ocean exchange and anthropogenetic CO2 consumption. J. Geophys. Res. Ocean., 117, doi:10.1029/2012jc008074 Abstract: The injection of radiocarbon ( C-14 ) into the atmosphere by nuclear weapons testing in the 1950s and 1960s has provided a mighty tracer to investigate ocean physical and chemical processes. While the oceanic consumption of bomb-derived C-14 was primarily controlled by air-sea exchange in the early decades after the bomb calorimeter spike, we demonstrate that changes in oceanic C-14 are now chiefly controlled by shallow-to-deep ocean switch over, i.e., the like mechanism that governs anthropogenetic CO2 consumption. This is a result of roll up fail C-14 uptake that has quickly decreased the air-sea gradient of C-14/C ( Delta C-14 ) and shifted the main reservoir of turkey C-14 from the atmosphere to the upper ocean. The air-sea Delta C-14 gradient, reduced further by dodo fuel dilution, is now weaker than before weapons testing in most regions. oceanic C-14, and particularly its worldly change, can now be used to study the oceanic consumption of anthropogenetic CO2. We examine observed changes in oceanic Delta C-14 between the WOCE/SAVE ( 1988-1995 ) and the CLIVAR ( 2001-2007 ) eras and simulations with two ocean general circulation models, the Community Climate System Model ( CCSM ) and the Estimating the Circulation and Climate of the Ocean Model ( ECCO ). Observed oceanic Delta C-14 and its changes between the 1980s-90s and 2000s argue that shallow-to-deep substitution is besides efficient in ECCO and excessively sluggish in CCSM. These findings suggest that mean ball-shaped oceanic uptake of anthropogenetic CO2 between 1990 and 2007 is bounded by the ECCO-based estimate of 2.3 Pg C yr ( -1 ) and the CCSM-based calculate of 1.7 Pg C yr ( -1 ) Keywords: atlantic-ocean, carbon-cycle, gas-exchange, indian-ocean, north pacific, northwestern pacific, pacific-ocean, recent climate-change, resolving power coral record, southern-ocean ECCO Products Used: ECCO-V2 URL: Other URLs:
Calafat, F. M.; Chambers, D. P.; Tsimplis, M. N. (2012). Mechanisms of decadal sea level variability in the eastern North Atlantic and the Mediterranean Sea, Journal of Geophysical Research: Oceans, 9 (117), 1-14, 10.1029/2012JC008285. Title: Mechanisms of decadal sea floor unevenness in the easterly North Atlantic and the Mediterranean Sea Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Calafat, F. M. ; Chambers, D. P. ; Tsimplis, M. N. Year: 2012 Formatted Citation: Calafat, F. M., D. P. Chambers, and M. N. Tsimplis, 2012 : Mechanisms of decadal sea level unevenness in the eastern North Atlantic and the Mediterranean Sea. J. Geophys. Res. Ocean., 117 ( 9 ), 1-14, doi:10.1029/2012JC008285 Abstract: 4513 oceanography : physical : Decadal ocean variability ( 1616, 1635, 3305, 4215 ) ; 4556 oceanography : physical : Sea level : variations and entail ( 1222, 1225, 1641 ) Keywords: Mediterranean, North Atlantic, atmospheric impel, sea tied, tide gauge ECCO Products Used: GECCOURL: https://onlinelibrary.wiley.com/doi/abs/10.1029/2012JC008285 Other URLs:
Ward, B A; Dutkiewicz, Stephanie; Jahn, O; Follows, Michael J. (2012). A size-structured food-web model for the global ocean, Limnology and Oceanography, 6 (57), 1877-1891, 10.4319/lo.2012.57.6.1877. Title: A size-structured food-web model for the global ocean Type: Journal article Publication: Limnology and Oceanography Author(s): Ward, B A ; Dutkiewicz, Stephanie ; Jahn, O ; Follows, Michael J. Year: 2012 Formatted Citation: Ward, B. A., S. Dutkiewicz, O. Jahn, and M. J. Follows, 2012 : A size-structured food-web model for the global ocean. Limnology and Oceanography, 57 ( 6 ), 1877-1891, doi:10.4319/lo.2012.57.6.1877 Abstract: We present a model of divers phytoplankton and zooplankton populations embedded in a ball-shaped ocean circulation model. physiologic and ecological traits of the organisms are constrained by relationships with cell size. The exemplary qualitatively reproduces ball-shaped distributions of nutrients, biomass, and basal productivity, and captures the power-law relationship between cell size and numeric concentration, which has naturalistic slopes of between −1.3 and −0.8. We use the model to explore the global structure of marine ecosystems, highlighting the importance of both nutrient and grazer controls. The model suggests that zooplankton : phytoplankton ( Z : P ) biomass ratios may vary from an order of 0.1 in the oligotrophic gyres to an regulate of 10 in upwelling and high-latitude regions. Global estimates of the force of bottom-up and top-down controls within plankton size classes suggest that these large-scale gradients in Z : P ratios are driven by a transfer from strong bottom-up, nutrient limitation in the oligotrophic gyres to the laterality of top-down, grazing controls in more generative regions. Keywords: ECCO Products Used: ECCO-V2URL: http://dx.doi.org/10.4319/lo.2012.57.6.1877 Other URLs:
Fu, Lee-Lueng; Alsdorf, Douglas; Morrow, Rosemary; Rodriguez, Ernesto; Mognard, Nelly (2012). SWOT: The Surface Water and Ocean Topography Mission: Wide-Swath Altimetric Measurement of Water Elevation on Earth. Title: SWOT : The Surface Water and Ocean Topography Mission : Wide-Swath Altimetric Measurement of Water Elevation on earth Type: Report Publication: Author(s): Fu, Lee-Lueng ; Alsdorf, Douglas ; Morrow, Rosemary ; Rodriguez, Ernesto ; Mognard, Nelly Year: 2012 Formatted Citation: Fu, L., D. Alsdorf, R. Morrow, E. Rodriguez, and N. Mognard, 2012 : cram : The Surface Water and Ocean Topography Mission : Wide-Swath Altimetric Measurement of Water Elevation on Earth., L. Fu, D. Alsdorf, R. Morrow, E. Rodriguez, and N. Mognard, Eds. National Aeronautics and Space Administration, Pasadena, CA, 228 pp. hypertext transfer protocol : //hdl.handle.net/2014/41996. Abstract: The aggrandizement of the open of the ocean and fresh water bodies on land holds key information on many crucial processes of the Earth System. The acme of the ocean come on, called ocean surface topography, has been measured by conventional nadir- looking radar altimeter for the past two decades. The data collected have been used for the study of large-scale circulation and ocean level change. however, the spatial resolution of the observations has limited the discipline to scales larger than about 200 km, leaving the smaller scales containing significant kinetic energy of ocean circulation that is creditworthy for the flux of heat, dissolved accelerator and nutrients between the upper berth and the deep ocean. This flux is important to the understand of the ocean ‘s role in regulating future climate switch. The acme of the water bodies on land is a key parameter required for the calculation of storage and free of fresh water in rivers, lakes, and wetlands. globally, the spatial and temporal unevenness of water repositing and release is ailing known due to the miss of well-sampled observations. In situ networks measuring river flows are declining cosmopolitan due to economic and political reasons. conventional altimeter observations suffers from the complexity of multiple peaks caused by the reflections from water, vegetation canopy and harsh topography, resulting in a lot less valid datum over farming than over the ocean. Another major limitation is the large bury track distance preventing good coverage of rivers and other water bodies. This document provides descriptions of a new measurement technique using radar interferometry to obtain wide-swath measurement of water elevation at high resolution over both the ocean and land. Making this type of measurement, which addresses the shortcomings of conventional altimetry in both oceanographic and hydrologic applications, is the aim of a mission concept called Surface Water and Ocean Topography ( SWOT ), which was recommended by the National Research Council ‘s beginning decadal review of NASA ‘s Earth skill plan. This document provides wide-ranging examples of research opportunities in oceanography and land hydrology that would be enabled by the new type of measurement. extra applications in many other branches of Earth System skill ranging from ocean bathymetry to sea ice dynamics are besides discussed. Many of the technical issues in making the measurement are discussed as well. besides presented is a preliminary plan of the SWOT Mission concept, which is being jointly developed by NASA and CNES, with contributions from the canadian Space Agency. Keywords: ECCO Products Used: ECCO2URL: http://hdl.handle.net/2014/41996 Other URLs:
Ma, J.; Liao, I.; Kwan-Liu Ma; Frazier, J. (2012). Living Liquid: Design and Evaluation of an Exploratory Visualization Tool for Museum Visitors, IEEE Transactions on Visualization and Computer Graphics, 12 (18), 2799-2808, 10.1109/TVCG.2012.244. Title: Living Liquid : design and Evaluation of an Exploratory Visualization Tool for Museum Visitors Type: Journal article Publication: IEEE Transactions on Visualization and Computer Graphics Author(s): Ma, J. ; Liao, I. ; Kwan-Liu Ma ; Frazier, J. Year: 2012 Formatted Citation: Ma, J., I. Liao, Kwan-Liu Ma, and J. Frazier, 2012 : Living Liquid : design and Evaluation of an Exploratory Visualization Tool for Museum Visitors. IEEE Transactions on Visualization and Computer Graphics, 18 ( 12 ), 2799-2808, doi:10.1109/TVCG.2012.244 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://ieeexplore.ieee.org/document/6327286/ Other URLs:
Marcus, S L; Dickey, J O; Fukumori, I; de Viron, O (2012). Detection of the Earth rotation response to a rapid fluctuation of Southern Ocean circulation in November 2009, Geophysical Research Letters (39), 10.1029/2011gl050671. Title: Detection of the Earth rotation reaction to a rapid variation of Southern Ocean circulation in November 2009 Type: Journal article Publication: Geophysical Research Letters Author(s): Marcus, S L ; Dickey, J O ; Fukumori, I ; de Viron, O Year: 2012 Formatted Citation: Marcus, S. L., J. O. Dickey, I. Fukumori, and O. de Viron, 2012 : detection of the Earth rotation reaction to a rapid fluctuation of Southern Ocean circulation in November 2009. Geophys. Res. Lett., 39, doi:10.1029/2011gl050671 Abstract: At seasonal worker and shorter periods the solid land and its overlying geophysical fluids form a close up dynamic system, which ( except for tidal push ) conserves its total angular momentum. While atmospheric effects dominate changes in the Earth ‘s rate of rotation and hence length-of-day ( LOD ) on these time scales, the addition of oceanic angular momentum ( OAM ) estimates has been shown to improve closure of the LOD budget in a statistical sense. here we demonstrate, for the first gear time, the signature of a specific, sub-monthly ocean current fluctuation on the Earth ‘s rotation rate, coinciding with recently-reported anomalies which developed in southeast Pacific come on temperature and penetrate blackmail fields during late 2009. Our results show that coincident variations in the Antarctic Circumpolar Current ( ACC ), which saw a sharp cliff and convalescence in zonal conveyance during a two-week period in November, were strong adequate to cause a detectable change in LOD following the removal of atmospheric angular momentum ( AAM ) computed from the Modern Era Retrospective Analysis for Research and Applications ( MERRA ) database. The strong OAM variations driving the LOD-AAM changes were diagnosed from ocean state estimates of the Consortium for Estimating the Circulation and Climate of the Ocean ( ECCO ) and involved approximately equal contributions from the current and pressure terms, with in situ ratification for the latter provided by tide-corrected bottom pressure registrar data from the South Drake Passage site of the Antarctic Circumpolar Current Levels by Altimetry and Island Measurements ( ACCLAIM ) network. citation : Marcus, S. L., J. O. Dickey, I. Fukumori, and O. de Viron ( 2012 ), Detection of the Earth rotation reception to a rapid fluctuation of Southern Ocean circulation in November 2009, Geophys. Res. Lett., 39, L04605, doi:10.1029/2011GL050671. Keywords: length, of-day variations, signals, unevenness ECCO Products Used: ECCO-KFS URL: Other URLs:
Dansereau, Véronique (2012). Ice shelf-ocean interactions in a general circulation model: melt-rate modulation due to mean flow and tidal currents. Title: Ice shelf-ocean interactions in a general circulation exemplary : melt-rate modulation due to mean flow and tidal currents Type: thesis Publication: Author(s): Dansereau, Véronique Year: 2012 Formatted Citation: Dansereau, V., 2012 : Ice shelf-ocean interactions in a general circulation model : melt-rate modulation due to mean flow and tidal currents., 123 pp. hypertext transfer protocol : //hdl.handle.net/1721.1/78549. Abstract: Interactions between the ocean circulation in sub-ice shelf cavities and the overlie frost shelf have received considerable attention in the context of observe changes in flow speeds of marine ice sheets around Antarctica. Modeling these interactions requires parameterizing the disruptive boundary level processes to infer mellow rates from the oceanic state at the ice-ocean interface. here we explore two such parameterizations in the context of the MIT ocean general circulation model coupled to the z-coordinates ice ledge cavity model of Losch ( 2008 ). We investigate both idealized ice ledge cavity geometries deoxyadenosine monophosphate good as a realistic cavity under Pine Island Ice Shelf ( PIIS ), West Antarctica. Our starting indicate is a three-equation fade rate parameterization implemented by Losch ( 2008 ), which is based on the work of Hellmer and Olbers ( 1989 ). In this phase, the transfer coefficients for calculating heating system and fresh water fluxes are independent of frictional turbulence induced by the proximity of the moving ocean to the fixed ice interface. More recently, Holland and Jenkins ( 1999 ) have proposed a parameterization in which the transfer coefficients do depend on the ocean-induced turbulence and are directly coupled to the speed of currents in the ocean mix level underneath the ice ledge through a quadratic drag formulation and a bulk drag coefficient. The dissolve pace parameterization in the MITgcm is augmented to account for this speed addiction. First, the effect of the augmented conceptualization is investigated in terms of its shock on mellow rates angstrom well as on its feedback on the wide-eyed sub-ice ledge circulation. We find that, over a wide range of scuff coefficients, velocity-dependent melt rates are more powerfully constrained by the distribution of blend layer currents than by the temperature gradient between the shelf base and underlie ocean, as opposed to velocity-independent melt rates. This leads to large differences in thaw pace patterns under PIIS when including versus not including the speed dependence. In a second time, the modulating effects of tidal currents on melting at the floor of PIIS are examined. We find that the worldly variability of velocity-dependent melt rates under tidal push is greater than that of velocity-independent melt rates. Our experiments suggest that because tidal currents under PIIS are watery and buoyancy fluxes are potent, tidal mix is negligible and tidal rectification is restricted to very steep bathymetric features, such as the ice ledge front. however, impregnable tidally-rectified currents at the frosting shelf front significantly increase ablation rates there when the formulation of the transmit coefficients includes the speed addiction. The enhanced dissolve then feedbacks positively on the correct currents, which are susceptible to insulate the cavity interior from changes in open ocean conditions. Keywords: ECCO Products Used: IceSheetURL: http://hdl.handle.net/1721.1/78549 Other URLs:
Scheller, Marita (2012). Determination of hydrological mass variations from GRACE data using the example of Siberian river systems. Title: Determination of hydrological mass variations from GRACE data using the exercise of siberian river systems Type: dissertation Publication: Author(s): Scheller, Marita Year: 2012 Formatted Citation: Scheller, M., 2012 : decision of hydrological mass variations from GRACE data using the exercise of siberian river systems., 151 pp. hypertext transfer protocol : //d-nb.info/1068151382/34. Abstract: The satellite mission GRACE ( Gravity Recovery and Climate Experiment ) observes the worldly concern ‘s graveness field on temporal scales of a few days to several weeks and spatial scales of a few hundred kilometers with high accuracy. A bombastic region of the variations of the graveness plain originate from hydrological aggregate changes on the continents. The dissertation discusses the determination of hydrological mass variations from GRACE for the siberian water systems of the rivers Ob, Yenisey, Lena and Kolyma. The batch variations from GRACE data are combined with atmospheric data of the NCEP reanalysis to calculate the fresh water fluxes in the Arctic Ocean. The fresh water flux strongly influences the brininess and the oceanographic government of the Arctic Ocean. In turn, the Arctic Ocean controls the global thermohaline circulation which is identical important for the ball-shaped climate. Because these big currents of the ocean influence the global climate, the changes of the fresh water fluxes in the Arctic Ocean are an significant factor for the global climate change. The runoff can be measured pointwise with high temporal role resolution, but measurements in the high latitudes are difficulty and expensive. independent methods to measure the batch changes in the Arctic can help to determine the fresh water fluxes on big spatial scales, and contribute to understand the couple and complex processes of the Arctic. Until show, the complex mistake structure of the GRACE data are not fully understand. The dissertation examines the errors and analysizes the escape caused by the restrict spectrum of the Stokes coefficients. A marriage proposal for a solution will be discussed. The following steps are important : Expanding the GRACE data with adequate terms of degree one ; Valuation of escape errors because of the limited spectrum. Leakage ascribable to oceanographic signals of the Arctic Ocean are little ( < 1 % ). escape errors due to signals on land produces relative errors of river basin averages of 8-17 %. beyond that, the largest errors are caused by the coefficients of higher degree. Filtering is an effective method to damp the erroneousness signals. In addition to the common filters described in the literature, a percolate method acting, called composite filter, was created. meaning structures from hydrological models can be deteceted in the GRACE data without any other percolate. only the remainder signals should be filtered by using one of the park filters. In comparison to the common filters, the composite filter represents the signal lastingness, the signal structures, the amplitude and the phase of the saisonal signal on the continents much better. Combining hydrological mass variations from GRACE data with atmospheric data ( for example the NCEP reanalysis ) the overflow of the four siberian river systems can be calcu- lated. The validation of the forecast runoff using observations leads to a good agreement ( 83 % for Yenisey and Lena ). Furthermore, it is possible to combine the overflow of a river system with measurements of water flush and brininess in the Arctic Ocean. The senior high school overflow of the Lena river system in give is visible in the water level changes in the Laptev ocean. Keywords: ECCO Products Used: ECCO2URL: https://d-nb.info/1068151382/34 Other URLs:
Seoane, L.; Biancale, R.; Gambis, D. (2012). Agreement between Earth’s rotation and mass displacement as detected by GRACE, Journal of Geodynamics (62), 49-55, 10.1016/j.jog.2012.02.008. Title: Agreement between Earth ’ s rotation and mass shift as detected by GRACE Type: Journal article Publication: Journal of Geodynamics Author(s): Seoane, L. ; Biancale, R. ; Gambis, D. Year: 2012 Formatted Citation: Seoane, L., R. Biancale, and D. Gambis, 2012 : agreement between Earth ‘s rotation and batch displacement as detected by GRACE. Journal of Geodynamics, 62, 49-55, doi:10.1016/j.jog.2012.02.008 Abstract: The progress in GRACE data processing should improve the estimate of low degree spherical harmonics which are expected to agree better with Earth ‘s rotation observations. The arctic motion and length-of-day excitations determined from the ball-shaped harmonics of the GRGS latest publish ( RL02 ) are explored and compared to the former release ( RL01 ). The RL02 gives best meet of the watch annual variations than RL01 and geophysical models do. however, the note residual signal obtained after removing annual and semiannual oscillations is calm better explained by the geophysical models flush if RL02 estimates are improved at these frequencies scales. linear trends are besides estimated over learn menstruation ( 2003-2008 ). The linear trends of χ 1 based on GRACE RL01/02 and EOP are like but they are identical different for χ 2. farther studies with longer time series of GRACE and future hydrometric missions could help better interpret the retentive term variations and the effects of ice plane aggregate loss or stake arctic rally. Concerning LOD variations, GRACE/LAGEOS mass translation data brings better agreement with EOP observations, compared to the pressure term estimated by models, however the RL02 has not shown significant improvement. © 2012 Elsevier Ltd. Keywords: GRACE, Gravity field, Length-of-day, Polar motion ECCO Products Used: ECCO-KFSURL: http://dx.doi.org/10.1016/j.jog.2012.02.008 Other URLs:
Granskog, Mats A; Stedmon, Colin A; Dodd, Paul A; Amon, Rainer M W; Pavlov, Alexey K; de Steur, Laura; Hansen, Edmond (2012). Characteristics of colored dissolved organic matter (CDOM) in the Arctic outflow in the Fram Strait: Assessing the changes and fate of terrigenous CDOM in the Arctic Ocean, Journal of Geophysical Research: Oceans, C12 (117), 10.1029/2012JC008075. Title: Characteristics of color dissolved organic matter ( CDOM ) in the Arctic spring in the Fram Strait : Assessing the changes and destiny of terrigenous CDOM in the Arctic Ocean Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Granskog, Mats A ; Stedmon, Colin A ; Dodd, Paul A ; Amon, Rainer M W ; Pavlov, Alexey K ; de Steur, Laura ; Hansen, Edmond Year: 2012 Formatted Citation: Granskog, M. A., C. A. Stedmon, P. A. Dodd, R. M. W. Amon, A. K. Pavlov, L. de Steur, and E. Hansen, 2012 : Characteristics of biased dissolved organic matter ( CDOM ) in the Arctic spring in the Fram Strait : Assessing the changes and destiny of terrigenous CDOM in the Arctic Ocean. J. Geophys. Res. Ocean., 117 ( C12 ), doi:10.1029/2012JC008075 Abstract: Absorption coefficients of color dissolved organic matter ( CDOM ) were measured together with brininess, δ18O, and inorganic nutrients across the Fram Strait. A pronounce CDOM assimilation maximum between 30 and 120 megabyte depth was associated with river and sea ice seawater enriched body of water, characteristic of the Arctic mix layer and upper berth halocline waters in the East Greenland Current ( EGC ). The lowest CDOM concentrations were found in the Atlantic inflow. We show that the salinity-CDOM kinship is not desirable for evaluating conservative mix of CDOM. The strong correlation between meteorologic body of water and CDOM is indicative of the riverine/terrigenous lineage of CDOM in the EGC. Based on CDOM preoccupation in arctic Water and comparison with an Arctic river free weighted mean, we estimate that a 49-59 % desegregate passing of CDOM absorption across 250-600 nanometer has occurred. A discriminatory removal of concentration at longer wavelengths reflects the loss of high molecular weight material. In contrast, CDOM fluxes through the Fram Strait using September speed fields from a high-resolution ocean-sea frost model indicate that the web south transport of terrigenous CDOM through the Fram Strait equals up to 50 % of the total riverine CDOM remark ; this suggests that the Fram Strait export is a major sink of CDOM. These contrasting results indicate that we have to constrain the ( C ) DOM budgets for the Arctic Ocean much better and examine uncertainties related to using tracers to assess button-down shuffle in polar waters. Keywords: 4207 Arctic and Antarctic oceanography, 4805 Biogeochemical cycles, 4806 Carbon cycle, 4808 Chemical tracers, 9315 Arctic region, Arctic Ocean, Fram Strait, absorption coefficient, and modelin, chromophoric dissolved organic matter, processes, river body of water, apparitional gradient coefficient ECCO Products Used: ECCO2URL: http://dx.doi.org/10.1029/2012JC008075 Other URLs:
Gierach, Michelle M.; Lee, Tong; Turk, Daniela; McPhaden, Michael J. (2012). Biological response to the 1997-98 and 2009-10 El Niño events in the equatorial Pacific Ocean, Geophysical Research Letters, 10 (39), n/a-n/a, 10.1029/2012GL051103. Title: Biological reply to the 1997-98 and 2009-10 El Niño events in the equatorial Pacific Ocean Type: Journal article Publication: Geophysical Research Letters Author(s): Gierach, Michelle M. ; Lee, Tong ; Turk, Daniela ; McPhaden, Michael J. Year: 2012 Formatted Citation: Gierach, M. M., T. Lee, D. Turk, and M. J. McPhaden, 2012 : biological response to the 1997-98 and 2009-10 El Niño events in the equatorial Pacific Ocean. Geophys. Res. Lett., 39 ( 10 ), n/a-n/a, doi:10.1029/2012GL051103 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: http://doi.wiley.com/10.1029/2012GL051103 Other URLs:
Zanna, L; Heimbach, P; Moore, A M; Tziperman, E (2012). Upper-ocean singular vectors of the North Atlantic climate with implications for linear predictability and variability, Quarterly Journal of the Royal Meteorological Society, 663 (138), 500-513, 10.1002/qj.937. Title: Upper-ocean remarkable vectors of the North Atlantic climate with implications for linear predictability and variability Type: Journal article Publication: Quarterly Journal of the Royal Meteorological Society Author(s): Zanna, L ; Heimbach, P ; Moore, A M ; Tziperman, E Year: 2012 Formatted Citation: Zanna, L., P. Heimbach, A. M. Moore, and E. Tziperman, 2012 : Upper-ocean remarkable vectors of the North Atlantic climate with implications for linear predictability and variability. quarterly Journal of the Royal Meteorological Society, 138 ( 663 ), 500-513, doi:10.1002/qj.937 Abstract: The limits of predictability of the meridional overthrow circulation ( MOC ) and upper-ocean temperatures ascribable to errors in ocean initial conditions and mannequin parametrizations are investigated in an idealize configuration of an ocean general circulation model ( GCM ). remarkable vectors ( optimum perturbations ) are calculated using the GCM, its tangent linear and adjoint models to determine an upper berth jump on the predictability of North Atlantic climate. The maximal increase time-scales of MOC and upper-ocean temperature anomalies, excited by the singular vectors, are 18.5 and 13 years respectively and in separate explained by the west propagation of upper-ocean anomalies against the mean flow. As a result of the linear hindrance of non-orthogonal eigenmodes of the non-normal dynamics, the ocean dynamics are found to actively participate in the significant growth of the anomalies. An initial density disturbance of merely 0.02 kg m−3 is found to lead to a 1.7 Sv MOC anomaly after 18.5 years. In addition, Northern Hemisphere upper-ocean temperature perturbations can be amplified by a agent of 2 after 13 years. The increase of upper-ocean temperature and MOC anomalies is slower and weaker when excited by the upper-ocean singular vectors than when the deep ocean is perturbed. This leads to the conclusion that predictability experiments perturbing lone the atmospheric initial state may overestimate the predictability prison term. interestingly, optimum MOC and upper-ocean temperature excitations are lone weakly correlated, frankincense limiting the utility of SST observations to infer MOC unevenness. The excitation of anomalies in this model might have a crucial impact on the unevenness and predictability of Atlantic climate. The limit of predictability of the MOC is found to be different from that of the upper-ocean estrus content, emphasizing that errors in ocean initial conditions will affect diverse measures differently and such uncertainties should be carefully considered in decadal prediction experiments. Copyright © 2011 Royal Meteorological Society Keywords: decadal prediction, mistake growth, heat content, meridional overturning circulation, model low-level formatting, optimum perturbations, sensitivity psychoanalysis ECCO Products Used: URL: http://dx.doi.org/10.1002/qj.937 Other URLs:
Heimbach, P; Losch, Martin (2012). Adjoint sensitivities of sub-ice-shelf melt rates to ocean circulation under the Pine Island Ice Shelf, West Antarctica, Annals of Glaciology, 60 (53), 59-69, 10.3189/2012/AoG60A025. Title: Adjoint sensitivities of sub-ice-shelf fade rates to ocean circulation under the Pine Island Ice Shelf, West Antarctica Type: Journal article Publication: Annals of Glaciology Author(s): Heimbach, P ; Losch, Martin Year: 2012 Formatted Citation: Heimbach, P., and M. Losch, 2012 : Adjoint sensitivities of sub-ice-shelf melt rates to ocean circulation under the Pine Island Ice Shelf, West Antarctica. Annals of Glaciology, 53 ( 60 ), 59-69, doi:10.3189/2012/AoG60A025 Abstract: We investigate the sensitivity of sub-ice-shelf thaw rates under Pine Island Ice Shelf, West Antarctica, to changes in the oceanic state using an adjoint ocean mannequin that is capable of representing the flow in sub-ice-shelf cavities. The adjoint code is based on algorithmic differentiation ( AD ) of the Massachusetts Institute of Technology ‘s ocean general circulation exemplar ( MITgcm ). The adjoint exemplary was extended by adding into the AD process the match sub-ice-shelf cavity code, which implements a three-equation thermodynamic melt-rate parameterization to infer heat and fresh water fluxes at the ice-shelf/ocean boundary. The understand sensitivities reveal dominant timescales of 30 60 days over which the shelf exit is connected to the bass interior via advective processes. They exhibit ample cubic time-evolving patterns that can be understood in terms of a combination of the buoyancy force by inflowing water masses, the cavity geometry and the impression of rotation and topography in steering the flow in the bearing of outstanding features in the fundamentals bathymetry. dominant sensitivity pathways are found over a sill, a well as ‘shadow regions ‘ of very humble sensitivities. To the extent that these transient patterns are robust they carry authoritative information for decision-making in observation deployment and monitoring. Keywords: assimilation, radical, bottomland topography, general-circulation, glacier, greenland, grounding line, meteorologic observations, model, sea ECCO Products Used: IceSheet ; adjoint URL: Other URLs:
Kolaczek, B.; Pasnicka, M.; Nastula, J. (2012). Analysis of the geodetic residuals as differences between geodetic and sum of the atmospheric and oceanic excitation of polar motion, Proc. Journées 2011 “Systèmes de référence spatio-temporels”, 164-165. Title: analysis of the geodetic residuals as differences between geodetic and total of the atmospheric and oceanic excitation of diametric gesticulate Type: Conference Proceedings Publication: Proc. Journées 2011 “ Systèmes de référence spatio-temporels ” Author(s): Kolaczek, B. ; Pasnicka, M. ; Nastula, J. Year: 2012 Formatted Citation: Kolaczek, B., M. Pasnicka, and J. Nastula, 2012 : psychoanalysis of the geodetic residuals as differences between geodetic and sum of the atmospheric and oceanic excitation of polar gesture. Proc. Journées 2011 “ Systèmes de référence spatio-temporels ”, H. Schuh, S. Böhm, T. Nilsson, and N. Capitaine, Eds. Observatoire de Paris, 164-165 pp. Abstract: Up to now studies of geophysical excitation of polar motion containing AAM ( Atmo- ball-shaped Angular Momentum ), OAM ( Oceanic Angular Momentum ) and HAM ( Hydrological Angular Mo- chin ) excitation functions of polar motion have not achieved the full agreement between geophysical and determined geodetic excitement ( GAM, Geodetic Angular Momentum ) functions of polar motion ( Nas- tula and Kolaczek, 2005 ; Chen and Wilson, 2005 ; Brzezinski et al., 2009 ; Nastula et al., 2011, Gross et al., 2003 ). Keywords: ECCO Products Used: ECCO-KFS URL: Other URLs:
Seitz, F.; Kirschner, S.; Neubersch, D. (2012). Determination of the Earth’s pole tide Love number k 2 from observations of polar motion using an adaptive Kalman filter approach, Journal of Geophysical Research: Solid Earth, B9 (117), 10.1029/2012JB009296. Title: Determination of the Earth ’ s punt tide Love total k 2 from observations of diametric movement using an adaptive Kalman filter access Type: Journal article Publication: Journal of Geophysical Research : upstanding land Author(s): Seitz, F. ; Kirschner, S. ; Neubersch, D. Year: 2012 Formatted Citation: Seitz, F., S. Kirschner, and D. Neubersch, 2012 : decision of the Earth ‘s punt tide Love total k 2 from observations of pivotal motion using an adaptive Kalman filter approach. Journal of Geophysical Research : solid Earth, 117 ( B9 ), doi:10.1029/2012JB009296 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: http://doi.wiley.com/10.1029/2012JB009296 Other URLs:
Condron, Alan; Winsor, Peter (2012). Meltwater routing and the Younger Dryas, Proceedings of the National Academy of Sciences, 49 (109), 19928-19933, 10.1073/pnas.1207381109. Title: Meltwater route and the Younger Dryas Type: Journal article Publication: Proceedings of the National Academy of Sciences Author(s): Condron, Alan ; Winsor, Peter Year: 2012 Formatted Citation: Condron, A., and P. Winsor, 2012 : meltwater rout and the Younger Dryas. Proceedings of the National Academy of Sciences, 109 ( 49 ), 19928-19933, doi:10.1073/pnas.1207381109 Abstract: The Younger Dryas-the last major cold episode on Earth-is by and large considered to have been triggered by a meltwater flood into the North Atlantic. The prevail hypothesis, proposed by Broecker et alabama. [ 1989 Nature 341:318-321 ] more than two decades ago, suggests that an abrupt rerouting of Lake Agassiz overflow through the Great Lakes and St. Lawrence Valley inhibited deep water formation in the subpolar North Atlantic and weakened the lastingness of the Atlantic Meridional Overturning Circulation ( AMOC ). More recently, Tarasov and Peltier [ 2005 Nature 435:662-665 ] showed that meltwater could have discharged into the Arctic Ocean via the Mackenzie Valley ∼4,000 km northwest of the St. Lawrence mercantile establishment. here we use a sophisticate, high-resolution, ocean sea-ice model to study the delivery of meltwater from the two drain outlets to the deep urine geological formation regions in the North Atlantic. Unlike the guess of Broecker et al., fresh water from the St. Lawrence Valley advects into the subtropical coil ∼3,000 km south of the North Atlantic deep water formation regions and weakens the AMOC by < 15 %. In contrast, narrow coastal limit currents efficiently deliver meltwater from the Mackenzie Valley to the deep body of water geological formation regions of the subpolar North Atlantic and weaken the AMOC by > 30 %. We conclude that meltwater discharge from the Arctic, rather than the St. Lawrence Valley, was more probable to have triggered the Younger Dryas cool. Keywords: ECCO Products Used: ECCO2URL: http://www.pnas.org/content/109/49/19928.abstract Other URLs:
Chen, J. L.; Wilson, C. R. (2012). Multi-Sensor Monitoring of Low-Degree Gravitational Changes, VII Hotine-Marussi Symposium on Mathematical Geodesy. International Association of Geodesy Symposia (137), 293-300, 10.1007/978-3-642-22078-4. Title: Multi-Sensor Monitoring of Low-Degree Gravitational Changes Type: Book section Publication: VII Hotine-Marussi Symposium on Mathematical Geodesy. International Association of Geodesy Symposia Author(s): Chen, J. L. ; Wilson, C. R. Year: 2012 Formatted Citation: Chen, J. L., and C. R. Wilson, 2012 : Multi-Sensor monitor of Low-Degree Gravitational Changes. VII Hotine-Marussi Symposium on Mathematical Geodesy. International Association of Geodesy Symposia, N. Sneeuw, P. Novák, M. Crespi, and F. Sansó, Eds., Springer-Verlag, 137, 293-300, doi:10.1007/978-3-642-22078-4 Abstract: Earth gravity change is caused by mass redistribution within the Earth system, including air and water redistribution in the atmosphere, ocean, estate, and cryosphere, and mass variation of the solid Earth ( in the core, blanket, and crust ). Gravity change can be quantified by geodetic measurements and numeral climate models. We estimate fourth dimension series of low-degree gravitational variations, ΔC21, ΔS21, and ΔC20 using four different techniques, from the Gravity Recovery and Climate Experiment ( GRACE ), Earth Orientation Parameters ( length of sidereal day and diametric motion ), advanced climate models ( including atmospheric, oceanic, and hydrologic models ), and satellite laser ranging. We compare these independent estimates at different time scales, and discuss major uncertainties for the versatile techniques. Independent estimates of ΔC21, ΔS21, and ΔC20 are important for validating the geodetic techniques and for improving understand of big scale and first gear frequency mass redistribution within the Earth system. Keywords: climate models, earth rotation, grace, humble degree graveness, slr ECCO Products Used: ECCO-KFSURL: https://link.springer.com/chapter/10.1007/978-3-642-22078-4_44 Other URLs:
Yan, Y F; Xu, D Z; Qi, Y Q; Gan, Z J (2012). Observations of Freshening in the Northwest Pacific Subtropical Gyre near Luzon Strait, Atmosphere-Ocean (50), 92-102, 10.1080/07055900.2012.715078. Title: Observations of Freshening in the Northwest Pacific Subtropical Gyre near Luzon Strait Type: Journal article Publication: Atmosphere-Ocean Author(s): Yan, Y F ; Xu, D Z ; Qi, Y Q ; Gan, Z J Year: 2012 Formatted Citation: Yan, Y. F., D. Z. Xu, Y. Q. Qi, and Z. J. Gan, 2012 : Observations of Freshening in the Northwest Pacific Subtropical Gyre near Luzon Strait. Atmosphere-Ocean, 50, 92-102, doi:10.1080/07055900.2012.715078 Abstract: Argo observations reveal that the brininess in the North Pacific subtropical coil near Luzon Strait gradually declined by 0.2 ( practical brininess scale used ) from 2003 to 2007 over a depth rate of 100 m to 200 m. such refresh is besides found in the outputs of the Estimating the Circulation and Climate of the Ocean ( ECCO ) exemplar. The potential mechanism for the refresh are investigated using the surface fresh water flux ( E-P ) data, the ECCO outputs and a salt budget equality for the amphetamine ocean. Our analysis indicates that the order of magnitude of the brininess change caused by the surface fresh water flux anomaly is far smaller than observed, suggesting that the open fresh water flux anomaly is not sufficient to account for the observe refresh. In fact, the salt anomaly is close linked to a marked refresh at the northeast recess of the study area from 2003 to 2007. The advection of brininess anomalies in the western North Pacific Ocean between 25 degrees N and 35 degrees N via a southwest menstruation in the “ C-shaped ” region associated with the Kuroshio system is the main mechanism responsible for the note refresh in the survey area. Keywords: Argo, Northwest Pacific, barrier layer, el-nino, refresh, interannual variations, mixed-layer, ocean, precipitation, sea-surface brininess, temperature, tropical pacific, upper ocean, western equatorial pacific ECCO Products Used: ECCO-KFS URL: Other URLs:
Moore, Andrew M.; Arango, Hernan G.; Broquet, Gregoire; Edwards, Chris; Veneziani, Milena; Powell, Brian; Foley, Dave; Doyle, James D.; Costa, Dan; Robinson, Patrick (2011). The Regional Ocean Modeling System (ROMS) 4-dimensional variational data assimilation systems, Progress in Oceanography, 1 (91), 74-94, 10.1016/j.pocean.2011.05.003. Title: The Regional Ocean Modeling System ( ROMS ) four-dimensional variational data assimilation systems Type: Journal article Publication: Progress in Oceanography Author(s): Moore, Andrew M. ; Arango, Hernan G. ; Broquet, Gregoire ; Edwards, Chris ; Veneziani, Milena ; Powell, Brian ; Foley, Dave ; Doyle, James D. ; Costa, Dan ; Robinson, Patrick Year: 2011 Formatted Citation: Moore, A. M. and Coauthors, 2011 : The Regional Ocean Modeling System ( ROMS ) four-dimensional variational data assimilation systems. progress in Oceanography, 91 ( 1 ), 74-94, doi:10.1016/j.pocean.2011.05.003 Abstract: Keywords: ECCO Products Used: ECCO-V3URL: https://linkinghub.elsevier.com/retrieve/pii/S0079661111000528 Other URLs: hypertext transfer protocol : //linkinghub.elsevier.com/retrieve/pii/S0079661111000504
Inazu, Daisuke; Hino, Ryota (2011). Temperature correction and usefulness of ocean bottom pressure data from cabled seafloor observatories around Japan for analyses of tsunamis, ocean tides, and low-frequency geophysical phenomena, Earth, Planets and Space, 11 (63), 1133-1149, 10.5047/eps.2011.07.014. Title: Temperature correction and utility of ocean penetrate press data from cable seafloor observatories around Japan for analyses of tsunami, ocean tides, and low-frequency geophysical phenomenon Type: Journal article Publication: Earth, Planets and Space Author(s): Inazu, Daisuke ; Hino, Ryota Year: 2011 Formatted Citation: Inazu, D. and R. Hino, 2011 : temperature correction and utility of ocean bottom pressure data from cable seafloor observatories around Japan for analyses of tsunami, ocean tides, and low-frequency geophysical phenomenon, Earth, Planets and Space, 63 ( 11 ), 1133-1149, department of the interior : 10.5047/eps.2011.07.014 Abstract: Ocean bottom pressure ( OBP ) data obtained by cable seafloor observatories deployed around Japan, are known to be importantly affected by temperature changes. This newspaper examines the relationship between the OBP and temperature records of six OBP gauges in terms of a regression coefficient and imprison at a wide range of frequencies. No significant temperature dependence is recognized in secular variations, while solid increases, at rates of the decree of 1 hPa/year, are normally discernible in the OBP records. strong temperature dependencies are apparent for periods of hours to days, and we correct the OBP data based on the estimated OBP-temperature relationship. At periods longer than days, the temperature corrections work well for extracting geophysical signals for OBP data at a station off Hokkaido ( KPG2 ), while other corrected data read insufficient signal-to-noise ratio ratios. At a tsunami frequency, the correction can reduce OBP fluctuations, due to rapid temperature changes, by american samoa much as millimeters, and is particularly effective for data at a station off Shikoku ( MPG2 ) at which rapid temperature changes most frequently occur. A tidal analysis shows that OBP data at a station off Honshu ( TM1 ), and at KPG2, are useful for studies on the long-run variations of tidal constituents. Keywords: ECCO Products Used: ECCO-KFSURL: https://link.springer.com/article/10.5047%2Feps.2011.07.014 Other URLs:
Brown, Jaclyn N.; Fedorov, Alexey V.; Guilyardi, Eric (2011). How well do coupled models replicate ocean energetics relevant to ENSO?, Climate Dynamics, 11-12 (36), 2147-2158, 10.1007/s00382-010-0926-8. Title: How well do coupled models replicate ocean energetics relevant to ENSO ? Type: Journal article Publication: Climate Dynamics Author(s): Brown, Jaclyn N. ; Fedorov, Alexey V. ; Guilyardi, Eric Year: 2011 Formatted Citation: Brown, J.N., A.V. Fedorov, and E. Guilyardi, 2011 : How well do coupled models replicate ocean energetics relevant to ENSO ?, Climate Dynamics, 36 ( 11-12 ), 2147-2158, department of the interior : 10.1007/s00382-010-0926-8 Abstract: Accurate replication of the processes associated with the energetics of the tropical ocean is necessary if coupled GCMs are to simulate the physics of ENSO correctly, including the transfer of energy from the winds to the ocean thermocline and energy profligacy during the ENSO cycle. here, we analyze ocean energetics in match GCMs in terms of two built-in parameters describing net energy loss in the system using the approach recently proposed by Brown and Fedorov ( J Clim 23:1563-1580, 2010a ) and Fedorov ( J Clim 20:1108-1117, 2007 ). These parameters are ( 1 ) the efficiency γ of the conversion of wind ability into the airiness exponent that controls the pace of change of the available potential energy ( APE ) in the ocean and ( 2 ) the e-folding rate α that characterizes the muffle of APE by disruptive dispersion and other processes. Estimating these two parameters for conjugate models reveals potential deficiencies ( and big differences ) in how state-of-the-art copulate GCMs reproduce the ocean energetics as compared to ocean-only models and data assimilating models. The majority of the match models we analyzed show a lower efficiency ( values of γ in the range of 10-50 % versus 50-60 % for ocean-only simulations or reanalysis ) and a relatively strong energy muffle ( values of α-1 in the range 0.4-1 years versus 0.9-1.2 years ). These differences in the model energetics appear to reflect differences in the model thermal structure of the tropical ocean, the structure of ocean equatorial currents, and deficiencies in the way coupled models simulate ENSO. Keywords: ECCO Products Used: ECCO-KFSURL: https://link.springer.com/article/10.1007%2Fs00382-010-0926-8 Other URLs:
Moore, Andrew M.; Arango, Hernan G.; Broquet, Gregoire; Edwards, Chris; Veneziani, Milena; Powell, Brian; Foley, Dave; Doyle, James D.; Costa, Dan; Robinson, Patrick (2011). The Regional Ocean Modeling System (ROMS) 4-dimensional variational data assimilation systems, Progress in Oceanography, 1 (91), 50-73, 10.1016/j.pocean.2011.05.003. Title: The Regional Ocean Modeling System ( ROMS ) four-dimensional variational data assimilation systems Type: Journal article Publication: Progress in Oceanography Author(s): Moore, Andrew M. ; Arango, Hernan G. ; Broquet, Gregoire ; Edwards, Chris ; Veneziani, Milena ; Powell, Brian ; Foley, Dave ; Doyle, James D. ; Costa, Dan ; Robinson, Patrick Year: 2011 Formatted Citation: Moore, A.M. H.G. Arango, G. Broquet, C. Edwards, M. Veneziani, B. Powell, D. Foley, J.D. Doyle, D. Costa, and P. Robinson, 2011 : The Regional Ocean Modeling System ( ROMS ) four-dimensional variational data assimilation systems, Progress in Oceanography, 91 ( 1 ), 50-73, department of the interior : 10.1016/j.pocean.2011.05.003 Abstract: The Regional Ocean Modeling System ( ROMS ) four-dimensional variational ( 4D-Var ) datum assimilation systems have been systematically applied to the mesoscale circulation environment of the California Current to demonstrate the performance and hardheaded utility of the diverse components of ROMS 4D-Var. In finical, we present a comparison of three approaches to 4D-Var, namely : the aboriginal formulation of the incremental strong constraint approach ; the double conceptualization “ physical-space statistical analysis system ” ; and the double formulation indirect representer approach. In agreement with theoretical considerations all three approaches converge to the lapp ocean circulation appraisal when using the like observations and prior information. however, the rate of convergence of the double conceptualization was found to be inferior to that of the aboriginal conceptualization. other aspects of the 4D-Var performance that relate to the use of multiple outer-loops, precondition, and the unaccented constraint are besides explored. A taxonomic evaluation of the impact of the diverse components of the 4D-Var command vector ( i.e. the initial conditions, surface force and capable boundary conditions ) is besides presented. It is shown that correcting for uncertainties in the model initial conditions exerts the largest determine on the ability of the model to fit the available observations. versatile crucial diagnostics of 4D-Var are besides examined, including estimates of the later mistake, the information content of the observation array, and innovation-based consistency checks on the prior erroneousness assumptions. Using these diagnostic tools, we find that more than 90 % of the observations assimilated into the exemplar leave excess data. This is a symptom of the large percentage of satellite data that are used and to some extent the nature of the datum process employed. This is the second gear in a series of three papers describing the ROMS 4D-Var systems. Keywords: ECCO Products Used: ECCO-V3URL: https://linkinghub.elsevier.com/retrieve/pii/S0079661111000504 Other URLs:
Moore, Andrew M.; Arango, Hernan G.; Broquet, Gregoire; Edwards, Chris; Veneziani, Milena; Powell, Brian; Foley, Dave; Doyle, James D.; Costa, Dan; Robinson, Patrick (2011). The Regional Ocean Modeling System (ROMS) 4-dimensional variational data assimilation systems, Progress in Oceanography, 1 (91), 74-94, 10.1016/j.pocean.2011.05.005. Title: The Regional Ocean Modeling System ( ROMS ) four-dimensional variational data assimilation systems Type: Journal article Publication: Progress in Oceanography Author(s): Moore, Andrew M. ; Arango, Hernan G. ; Broquet, Gregoire ; Edwards, Chris ; Veneziani, Milena ; Powell, Brian ; Foley, Dave ; Doyle, James D. ; Costa, Dan ; Robinson, Patrick Year: 2011 Formatted Citation: Moore, A.M., H.G. Arango, G. Broquet, C. Edwards, M. Veneziani, B. Powell, D. Foley, J.D. Doyle, D. Costa, P. Robinson, 2011 : The Regional Ocean Modeling System ( ROMS ) four-dimensional variational data assimilation systems, Progress in Oceanography, 91 ( 1 ), 74-94, department of the interior : 10.1016/j.pocean.2011.05.005 Abstract: The critical role played by observations during ocean data assimilation was explored when the Regional Ocean Modeling System ( ROMS ) four-dimensional variational ( 4D-Var ) data assimilation system was applied consecutive to the California Current circulation. The adjoint of the 4D-Var addition matrix was used to quantify the shock of person observations and observation platforms on different aspects of the 4D-Var circulation estimates during both analysis and subsequent forecast cycles. In this report we focus on the alongshore and cross-shore tape drive of the California Current System associated with wind-induced coastal upwelling along the central California seashore. The majority of the observations available during any given analysis cycle are from satellite platforms in the form of SST and SSH, and on average these data exert the largest controlling influence on the analysis increments and bode skill of coastal transport. however, subsurface in situ observations from Argo floats, CTDs, XBTs and tagged marine mammals frequently have a considerable impact on analyses and forecasts of coastal transport, even though these observations represent a relatively belittled fraction of the available data at any particular fourth dimension.

During 4D-Var the observations are used to correct for uncertainties in the model manipulate variables, namely the initial conditions, surface pull, and open limit conditions. It is found that correcting for uncertainties in both the initial conditions and surface force has the largest shock on the analysis increments in alongshore transport, while the cross-shore transport is controlled chiefly by the coat force. The memory of the circulation associated with the control variable star increments was besides explored in relation to 7 sidereal day forecasts of the coastal circulation. Despite the importance of correcting for surface forcing uncertainties during psychoanalysis cycles, the coastal transportation during forecast cycles initialized from the analyses has less memory of the surface forcing corrections, and is controlled chiefly by the analysis initial conditions.

Using the adjoint of the stallion 4D-Var system we have besides explored the sensitivity of the coastal transport to changes in the observations and the observation array. A single integration of the adjoint of 4D-Var can be used to predict the change that occurs when observations from unlike platforms are omitted from the 4D-Var analysis. frankincense observing organization experiments can be performed for each data assimilation cycle at a divide of the computational monetary value that would be required to repeat the 4D-Var analyses when observations are withheld. This is the third base region of a three depart series describing the ROMS 4D-Var systems. Keywords: ECCO Products Used: ECCO-V3URL: https://linkinghub.elsevier.com/retrieve/pii/S0079661111000528 Other URLs:
Wunsch, Carl (2011). The decadal mean ocean circulation and Sverdrup balance, Journal of Marine Research, 2 (69), 417-434, 10.1357/002224011798765303. Title: The decadal bastardly ocean circulation and Sverdrup balance Type: Journal article Publication: Journal of Marine Research Author(s): Wunsch, Carl Year: 2011 Formatted Citation: Wunsch, C., 2011 : The decadal bastardly ocean circulation and Sverdrup balance, Journal of Marine Research, 69 ( 2 ), 417-434, department of the interior : 10.1357/002224011798765303 Abstract: Elementary Sverdrup symmetry is tested in the context of the time-average of a 16-year duration time-varying ocean circulation estimate employing the great majority of global-scale data available between 1992 and 2007. The time-average circulation exhibits all of the conventional major features as picture both through its absolute surface topography and vertically integrate ecstasy pour function. crucial small-scale features of the clock time average only become apparent, however, in the time-average vertical speed, whether near the airfoil or in the abyss. In testing Sverdrup remainder, the necessity is made that there should be a mid-water column depth where the magnitude of the erect speed is less than 10–8m/s ( about 0.3 m/year translation ). The prerequisite is not met in the southern Ocean or high northern latitudes. Over much of the subtropical and lower latitude ocean, Sverdrup balance appears to provide a quantitatively utilitarian estimate of the meridional conveyance ( about 40 % of the oceanic area ). application to computing the zonal part, by integration from the easterly limit is, however, precluded in many places by failure of the local balances close up to the coasts. failure of Sverdrup libra at high northerly latitudes is reproducible with the expected much longer clock to achieve active balance there, and the action of other forces, and has authoritative consequences for ongoing ocean monitoring efforts. Keywords: ECCO Products Used: ECCO-V3URL: https://www.ingentaconnect.com/content/jmr/jmr/2011/00000069/f0020002/art00012;jsessionid=1ws5nnx85e75d.x-ic-live-01 Other URLs:
Maze, Guillaume; Marshall, John (2011). Diagnosing the Observed Seasonal Cycle of Atlantic Subtropical Mode Water Using Potential Vorticity and Its Attendant Theorems, Journal of Physical Oceanography, 10 (41), 1986-1999, 10.1175/2011JPO4576.1. Title: Diagnosing the Observed Seasonal Cycle of Atlantic Subtropical Mode Water Using Potential Vorticity and Its Attendant Theorems Type: Journal article Publication: Journal of Physical Oceanography Author(s): Maze, Guillaume ; Marshall, John Year: 2011 Formatted Citation: Maze, G., and J. Marshall, 2011 : Diagnosing the Observed Seasonal Cycle of Atlantic Subtropical Mode Water Using Potential Vorticity and Its Attendant Theorems. Journal of Physical Oceanography, 41 ( 10 ), 1986-1999, doi:10.1175/2011JPO4576.1 Abstract: Analyzed fields of ocean circulation and the flux form of the likely vorticity equation are used to map the universe and subsequent circulation of low potential vorticity waters known as subtropical manner water ( STMW ) in the North Atlantic. Novel map techniques are applied to ( one ) render the seasonal worker hertz and annual-mean interracial layer vertical liquefy of potential vorticity ( PV ) through outcrops and ( two ) visualize the origin of PV from the mode water layer in winter, over and to the south of the Gulf Stream. Both buoyancy loss and fart forcing lend to the extraction of PV, but the authors find that the former greatly exceeds the latter. The subsequent path of STMW is besides mapped using Bernoulli contours on isopycnal surfaces. Keywords: ECCO Products Used: OCCAURL: http://journals.ametsoc.org/doi/10.1175/2011JPO4576.1 Other URLs:
Ron, C.; Vondrák, Jan; Štefka, V. (2011). Comparison of the various atmospheric and oceanic angular momentum series, Proc. Journées 2010 Systèmes de référence spatiotemporels, 221-222, 10.1029/2006JC004035.Gross. Title: Comparison of the assorted atmospheric and oceanic angular momentum series Type: Conference Proceedings Publication: Proc. Journées 2010 Systèmes de référence spatiotemporels Author(s): Ron, C. ; Vondrák, Jan ; Štefka, V. Year: 2011 Formatted Citation: Ron, C., J. Vondrák, and V. Štefka, 2011 : comparison of the assorted atmospheric and oceanic angular momentum series. Proc. Journées 2010 Systèmes de référence spatiotemporels, N. Capitaine, Eds. Observatoire de Paris, 221-222 pp. doi:10.1029/2006JC004035.Gross. Abstract: Keywords: ECCO Products Used: ECCO-KFS URL: Other URLs:
Hemery, LG; Galton-Fenzi, B; Améziane, N; Riddle, MJ; Rintoul, SR; Beaman, RJ; Post, AL; Eléaume, M (2011). Predicting habitat preferences for Anthometrina adriani (Echinodermata) on the East Antarctic continental shelf, Marine Ecology Progress Series (441), 105-116, 10.3354/meps09330. Title: Predicting habitat preferences for Anthometrina adriani ( Echinodermata ) on the East Antarctic continental ledge Type: Journal article Publication: Marine Ecology Progress Series Author(s): Hemery, LG ; Galton-Fenzi, B ; Améziane, N ; Riddle, MJ ; Rintoul, SR ; Beaman, RJ ; Post, AL ; Eléaume, M Year: 2011 Formatted Citation: Hemery, L., B. Galton-Fenzi, N. Améziane, M. Riddle, S. Rintoul, R. Beaman, A. Post, and M. Eléaume, 2011 : Predicting habitat preferences for Anthometrina adriani ( Echinodermata ) on the East Antarctic continental ledge. Marine Ecology Progress Series, 441, 105-116, doi:10.3354/meps09330 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://www.int-res.com/abstracts/meps/v441/p105-116/ Other URLs:
Cerovečki, Ivana; Talley, Lynne D.; Mazloff, Matthew R (2011). A Comparison of Southern Ocean Air-Sea Buoyancy Flux from an Ocean State Estimate with Five Other Products, Journal of Climate, 24 (24), 6283-6306, 10.1175/2011JCLI3858.1. Title: A Comparison of Southern Ocean Air-Sea Buoyancy Flux from an Ocean State Estimate with Five early Products Type: Journal article Publication: Journal of Climate Author(s): Cerovečki, Ivana ; Talley, Lynne D. ; Mazloff, Matthew R Year: 2011 Formatted Citation: Cerovečki, I., L. D. Talley, and M. R. Mazloff, 2011 : A Comparison of Southern Ocean Air-Sea Buoyancy Flux from an Ocean State Estimate with Five other Products. J. Clim., 24 ( 24 ), 6283-6306, doi:10.1175/2011JCLI3858.1 Abstract: The authors have intercompared the following six come on irrepressibility flow estimates, averaged over the years 2005-07 : two reanalyses [ the holocene ECMWF reanalysis ( ERA-Interim ; hereafter ERA ), and the National Centers for Environmental Prediction ( NCEP ) -NCAR reanalysis 1 ( hereafter NCEP1 ) ], two late flux products developed as an improvement of NCEP1 [ the flux intersection by Large and Yeager and the southerly Ocean State Estimate ( SOSE ) ], and two ad hoc air-sea flux density estimates that are obtained by combining the NCEP1 or ERA net income radiative fluxes with disruptive flux estimates using the Coupled Ocean-Atmosphere Response Experiment ( COARE ) 3.0 bulk formulas with NCEP1 or ERA input variables.The accuracy of SOSE adjustments of NCEP1 atmospheric fields ( which SOSE uses as an initial guess and a constraint ) was assessed by verification that SOSE reduces the biases in the NCEP1 fluxes as diagnosed by the Working Group on Air-Sea Fluxes ( Taylor ), suggesting that oceanic observations may be a valuable constraint to improve atmospheric variables.Compared with NCEP1, both SOSE and Large and Yeager increase the final ocean heat loss in high latitudes, decrease ocean hotness loss in the subtropical indian Ocean, decrease net dehydration in the subtropics, and decrease net precipitation in diametric latitudes. The large-scale design of SOSE and Large and Yeager disruptive estrus flux adjustment is exchangeable, but the magnitude of SOSE adjustments is importantly larger. Their radiative estrus flux density adjustments patterns differ. Turbulent heat fluxes determined by combining COARE majority formula with NCEP1 or ERA should not be combined with unmodified NCEP1 or ERA radiative fluxes as the net ocean heat derive poleward of 25°S becomes unrealistically boastfully. The other surface flux products ( i, NCEP1, ERA, Large and Yeager, and SOSE ) poise more closely.Overall, the statistical estimates of the differences between the diverse air-sea heat flux products tend to be largest in regions with solid ocean mesoscale activity such as the Antarctic Circumpolar Current and the western boundary currents. Keywords: Air-sea interaction, Buoyancy, Fluxes, Model comparis ECCO Products Used: SOSEURL: http://journals.ametsoc.org/doi/abs/10.1175/2011JCLI3858.1 Other URLs:
Williams, Richard G.; Follows, Michael J. (2011). Ocean Dynamics and the Carbon Cycle. Title: Ocean Dynamics and the Carbon Cycle Type: Book Publication: Author(s): Williams, Richard G. ; Follows, Michael J. Year: 2011 Formatted Citation: Williams, R. G., and M. J. Follows, 2011 : Ocean Dynamics and the Carbon Cycle. Cambridge University Press, Cambridge, 404 pp. doi:10.1017/CBO9780511977817. Abstract: This casebook for gain undergraduate and graduate students presents a multidisciplinary set about to reason ocean circulation and how it drives and controls marine biogeochemistry and biological productivity at a global scale. Background chapters on ocean physics, chemistry and biota provide students with the tools to examine the image of large-scale physical and dynamic phenomena that control the ocean carbon cycle and its interaction with the atmosphere. Throughout the text experimental datum is integrated with basic physical theory to address up-to-date research questions in ocean biogeochemistry. simple theoretical models, data plots and conventional illustrations summarise key results and connect the physical theory to veridical observations. Advanced mathematics is provided in boxes and appendices where it can be drawn on to assist with the work examples and homework exercises available on-line. farther interpretation lists for each chapter and a comprehensive examination glossary supply students and instructors with a dispatch teach box. Keywords: Climatology and Climate Change, Earth and Environmental Sciences, Oceanography and Marine Science ECCO Products Used: ECCO2URL: https://www.cambridge.org/us/academic/subjects/earth-and-environmental-science/oceanography-and-marine-science/ocean-dynamics-and-carbon-cycle-principles-and-mechanisms?format=HB&isbn=9780521843690 Other URLs: hypertext transfer protocol : //ebooks.cambridge.org/ref/id/CBO9780511977817
Halkides, D; Lee, T; Kida, S (2011). Mechanisms controlling the seasonal mixed-layer temperature and salinity of the Indonesian seas, Ocean Dynamics, 4 (61), 481-495, 10.1007/s10236-010-0374-3. Title: Mechanisms controlling the seasonal mixed-layer temperature and brininess of the Indonesian sea Type: Journal article Publication: Ocean Dynamics Author(s): Halkides, D ; Lee, T ; Kida, S Year: 2011 Formatted Citation: Halkides, D., T. Lee, and S. Kida, 2011 : Mechanisms controlling the seasonal mixed-layer temperature and salt of the indonesian sea. Ocean Dynamics, 61 ( 4 ), 481-495, doi:10.1007/s10236-010-0374-3 Abstract: We examine the seasonal worker mixed-layer temperature ( MLT ) and brininess ( MLS ) budgets in the Banda-Arafura Seas region ( 120-138A degrees E, 8-3A degrees S ) using an ECCO ocean-state estimate product. MLT in these seas is relatively high during November-May ( austral bounce through fall ) and relatively humble during June-September ( austral winter and the period associated with the asian summer monsoon ). Surface heat flux makes the largest contribution to the seasonal worker MLT tendency, with meaning strengthener by subsurface processes, particularly churning vertical mix. temperature declines ( the MLT tendency is negative ) in May-August when seasonal worker heliotherapy is smallest and local winds are potent due to the southeasterly monsoon, which causes surface hotness loss and cooling system by vertical processes. In detail, Ekman sucking induced by local anesthetic scent stress coil raises the thermocline in the Arafura Sea, bringing cooler subsurface body of water close to the base of the interracial layer where it is subsequently incorporated into the shuffle layer through churning vertical mix ; this has a cool effect. The MLT budget besides has a small, but non-negligible, semi-annual component since insolation increases and winds weaken during the spring and fall monsoon transitions near the equator. This causes warming via solar inflame, reduced coat heat loss, and weakened churning blend compared to austral winter and, to a lesser extent, compared to austral summer. seasonal MLS is dominated by ocean processes quite than by local fresh water liquefy. The contributions by horizontal advection and subsurface processes have comparable magnitudes. The results suggest that ocean dynamics play a meaning separate in determining both seasonal worker MLT and MLS in the region, such that coupled model studies of the region should use a full ocean exemplar preferably than a slab ocean mixed-layer model. Keywords: ECCO, Indonesian sea, Mixed layer, Ocean-state estimate, Seasonal heat budget, Seasonal brininess, budget, circulation model, gcm, maritime celibate, pacific, parameterization, region, sensitivity, throughflow, upper ocean, unevenness ECCO Products Used: ECCO-KFS URL: Other URLs:
Qu, T D; Gao, S; Fukumori, I (2011). What governs the North Atlantic salinity maximum in a global GCM?, Geophysical Research Letters (38), 10.1029/2011gl046757. Title: What governs the North Atlantic brininess maximum in a global GCM ? Type: Journal article Publication: Geophysical Research Letters Author(s): Qu, T D ; Gao, S ; Fukumori, I Year: 2011 Formatted Citation: Qu, T. D., S. Gao, and I. Fukumori, 2011 : What governs the North Atlantic salt maximum in a global GCM ? Geophys. Res. Lett., 38, doi:10.1029/2011gl046757 Abstract: Taking advantage of the rapid progress in ocean model, this discipline investigates the sea airfoil salt maximal in the North Atlantic, using results from a model of the Consortium for Estimating the Circulation and Climate of the Ocean ( ECCO ). Salinity budget terms were computed at the exemplar ‘s integration time tone and archived as monthly averages. The fake blend level brininess budget provides the first quantitative evidence for the ocean ‘s character in governing the ocean airfoil brininess maximal in the North Atlantic. Our analysis reveals that ocean dynamics explains about half of the sea surface brininess division, being of equal importance as surface force. The sea come on brininess maximum varies both seasonally and interannually, as a consequence of interplay among surface flux, advection, and erect entrainment. contribution from eddies and minor processes is relatively weak but not negligible. These results may provide useful hints for the design and interpretation of future observations in the region. citation : Qu, T., S. Gao, and I. Fukumori ( 2011 ), What governs the North Atlantic brininess utmost in a ball-shaped GCM ?, Geophys. Res. Lett., 38, L07602, doi:10.1029/2011GL046757. Keywords: climatology, mixed-layer, model, ocean, sea-surface brininess, trends, tropical atlantic, unevenness ECCO Products Used: ECCO-KFS URL: Other URLs:
Gennerich, Hans-Hermann; Villinger, Heinrich (2011). Deciphering the ocean bottom pressure variation in the Logatchev hydrothermal field at the eastern flank of the Mid-Atlantic Ridge, Geochemistry, Geophysics, Geosystems, 7 (12), 10.1029/2010GC003441. Title: Deciphering the ocean bottom pressure variation in the Logatchev hydrothermal field at the eastern flank of the middle atlantic Ridge Type: Journal article Publication: Geochemistry, Geophysics, Geosystems Author(s): Gennerich, Hans-Hermann ; Villinger, Heinrich Year: 2011 Formatted Citation: Gennerich, H., and H. Villinger, 2011 : Deciphering the ocean bottom pressure variation in the Logatchev hydrothermal field at the eastern flank of the middle atlantic Ridge. Geochemistry, Geophysics, Geosystems, 12 ( 7 ), doi:10.1029/2010GC003441 Abstract: Ocean bottom blackmail data from the Logatchev hydrothermal field ( LHF ) are presented and analyzed. The data were collected with two ocean bed coerce meters ( OBPs ), constructed at the University of Bremen, that are capable of recording signals with frequencies improving to 0.25 Hz. Over the long-run, a closely 2.5 kPa ( 25 centimeter urine column equivalent ) pressure variation over 3.7 years is observed, which is coherent with uplift followed by settling, but can not unambiguously be discerned from instrumental drift. Medium-term coerce variations are compared with satellite surface topography, satellite gravity, ocean model, and in situ data from an OBP 700 kilometer away. It is shown that fluctuations in the oceanic aggregate distribution dominate the variations in this frequency scope and that oceanic modeling and data from a 700 kilometer distant OBP are positively correlated with the LHF bed atmospheric pressure clock series. The short-run variations are dominated by microseisms originating from ocean open waves and press waves from earthquakes as can be shown by comparison with weather buoy and teleseismic data. Keywords: 1209 Tectonic contortion, 3017 Hydrothermal systems, 3075 Submarine tectonics and volcanism, Logatchev hydrothermal field, middle atlantic Ridge, gravity waves, ocean bottom imperativeness, seafloor deformation, surface waves ECCO Products Used: ECCO-KFS ; ECCO2URL: http://dx.doi.org/10.1029/2010GC003441 Other URLs:
Volkov, Denis L.; Fu, Lee-Lueng (2011). Interannual variability of the Azores Current strength and eddy energy in relation to atmospheric forcing, Journal of Geophysical Research: Oceans, C11 (116), 10.1029/2011JC007271. Title: Interannual variability of the Azores Current potency and eddy energy in sexual intercourse to atmospheric impel Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Volkov, Denis L. ; Fu, Lee-Lueng Year: 2011 Formatted Citation: Volkov, D. L., and L. Fu, 2011 : Interannual unevenness of the Azores Current intensity and eddy energy in relative to atmospheric force. J. Geophys. Res. Ocean., 116 ( C11 ), doi:10.1029/2011JC007271 Abstract: Spaceborne observations of sea surface topography have revealed a significant interannual unevenness of the Azores Current military capability and eddy energy. The objective of this wallpaper is to establish the relationship between these variations and atmospheric push over the subtropical North Atlantic. Based on satellite altimetry, hydrography, and atmospheric reanalysis products, it is demonstrated that the interannual unevenness of the Azores Current east speed and eddy energy may be driven by the alteration of the ocean to the lastingness of westerly and trade winds, modulated by the North Atlantic Oscillation. Surface intensification ( frontogenesis ), which is chiefly due to the wind-driven meridional Ekman current overlap, is found meaning, but not sufficient to explain the detect interannual variability of the Azores Current military capability. Keywords: 4512 Currents, 4520 Eddies and mesoscale processes, 4528 Fronts and jets, 4532 General circulation, 4572 Upper ocean and shuffle layer processes, Azores Current, atmospheric force, eddy kinetic energy, frontogenesis, interannual variability, subtropical North Atlantic ECCO Products Used: URL: http://dx.doi.org/10.1029/2011JC007271 Other URLs:
Forget, Gaël; Maze, Guillaume; Buckley, Martha; Marshall, John (2011). Estimated Seasonal Cycle of North Atlantic Eighteen Degree Water Volume, Journal of Physical Oceanography, 2 (41), 269-286, 10.1175/2010JPO4257.1. Title: Estimated Seasonal Cycle of North Atlantic Eighteen Degree Water bulk Type: Journal article Publication: Journal of Physical Oceanography Author(s): Forget, Gaël ; Maze, Guillaume ; Buckley, Martha ; Marshall, John Year: 2011 Formatted Citation: Forget, G., G. Maze, M. Buckley, and J. Marshall, 2011 : Estimated Seasonal Cycle of North Atlantic Eighteen Degree Water volume. Journal of Physical Oceanography, 41 ( 2 ), 269-286, doi:10.1175/2010JPO4257.1 Abstract: The seasonal worker hertz in the volume and formation rate of Eighteen Degree Water ( EDW ) in the North Atlantic is quantified over the 3-yr period from 2004 to 2006. The EDW layer is defined as all waters that have a temperature between 17° and 19°C. The cogitation is facilitated by a synthesis of diverse observations-principally Argo profiles of temperature and brininess, sea surface temperature, and altimetry-using a general circulation model as an interpolation tool. The winter increase in EDW bulk is most pronounce in February, peaking at about 8.6 Svy, where 1 Svy ≈ 3.15 × 1013 m3 corresponding to a 1 Sv ( Sv ≡ 106 m3 s−1 ) menstruation sustained for one year. This largely reflects winter EDW formation due to air-sea hotness fluxes. Over the remainder of the year, newly created EDW is consumed by air-sea heat fluxes and ocean desegregate, which approximately contribute ⅔ and ⅓, respectively. The authors estimate a net annual volume addition of 1.4 Svy, averaged over the 3-yr menstruation. It is little compared to the amplitude of the seasonal worker bicycle ( 8.6 Svy ) and annual formation due to air-sea fluxes ( 4.6 Svy ). The overall EDW layer volume therefore appears to fluctuate around a stable charge during the discipline period. An appraisal of the broad EDW bulk budget is provided along with an doubt appraisal of 1.8 Svy, and largely resolves apparent conflicts between former estimates. Keywords: Airndas, North Atlantic, Seasonal cycle, Water masses ECCO Products Used: URL: http://journals.ametsoc.org/doi/abs/10.1175/2010JPO4257.1 Other URLs:
Mata, Aitor; Corchado, Juan M.; Tapia, Dante I. (2011). CROS: A Contingency Response multi-agent system for Oil Spills situations, Applied Soft Computing, 3 (11), 3147-3159, 10.1016/j.asoc.2010.12.017. Title: CROS : A Contingency Response multi-agent system for Oil Spills situations Type: Journal article Publication: Applied Soft Computing Author(s): Mata, Aitor ; Corchado, Juan M. ; Tapia, Dante I. Year: 2011 Formatted Citation: Mata, A., J. M. Corchado, and D. I. Tapia, 2011 : oscilloscope : A Contingency Response multi-agent system for Oil Spills situations. Applied Soft Computing, 11 ( 3 ), 3147-3159, doi:10.1016/j.asoc.2010.12.017 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://linkinghub.elsevier.com/retrieve/pii/S1568494610003248 Other URLs:
Todd, Robert E.; Rudnick, Daniel L.; Mazloff, Matthew R.; Davis, Russ E.; Cornuelle, Bruce D. (2011). Poleward flows in the southern California Current System: Glider observations and numerical simulation, Journal of Geophysical Research, C2 (116), C02026, 10.1029/2010JC006536. Title: Poleward flows in the southern California Current system : Glider observations and numeric simulation Type: Journal article Publication: Journal of Geophysical Research Author(s): Todd, Robert E. ; Rudnick, Daniel L. ; Mazloff, Matthew R. ; Davis, Russ E. ; Cornuelle, Bruce D. Year: 2011 Formatted Citation: Todd, R. E., D. L. Rudnick, M. R. Mazloff, R. E. Davis, and B. D. Cornuelle, 2011 : Poleward flows in the southern California Current system : Glider observations and numerical simulation. Journal of Geophysical Research, 116 ( C2 ), C02026, doi:10.1029/2010JC006536 Abstract: Keywords: ECCO Products Used: SOSEURL: http://doi.wiley.com/10.1029/2010JC006536 Other URLs:
Zhang, Xuebin; Cornuelle, Bruce; Roemmich, Dean (2011). Adjoint sensitivity of the Niño-3 surface temperature to wind forcing, Journal of Climate, 16 (24), 4480-4493, 10.1175/2011JCLI3917.1. Title: Adjoint sensitivity of the Niño-3 surface temperature to wind force Type: Journal article Publication: Journal of Climate Author(s): Zhang, Xuebin ; Cornuelle, Bruce ; Roemmich, Dean Year: 2011 Formatted Citation: Zhang, X., B. Cornuelle, and D. Roemmich, 2011 : Adjoint sensitivity of the Niño-3 surface temperature to wind force. J. Clim., 24 ( 16 ), 4480-4493, doi:10.1175/2011JCLI3917.1 Abstract: The development of sea open temperature ( SST ) over the eastern equatorial Pacific plays a significant character in the intense tropical air-sea interaction there and is of central importance to the El Niño-Southern Oscillation ( ENSO ) phenomenon. Effects of atmospheric fields ( particularly wind stress ) and ocean state on the eastern equatorial Pacific SST variations are investigated using the Massachusetts Institute of Technology general circulation model ( MITgcm ) and its adjoint model, which can calculate the sensitivities of a price function ( in this case the averaged 0-30-m temperature in the Niño-3 area during an ENSO event peak ) to previous atmospheric force fields and ocean state going backward in meter. The sensitivity of the Niño-3 airfoil temperature to monthly zonal wind stress in preceding months can be understood by invoking desegregate layer hotness counterweight, ocean dynamics, and specially linear equatorial wave dynamics. The maximal positivist sensitivity of the Niño-3 airfoil temperature to local wind forcing normally happens ~1-2 months before the acme of the ENSO consequence and is hypothesized to be associated with the Ekman pumping mechanism. In model experiments, its order of magnitude is closely related to the subsurface vertical temperature gradient, exhibiting strong event-to-event differences with impregnable ( weak ) positive sensitivity during La Niña ( solid El Niño ) events. The adjoint sensitivity to remote wreathe wedge in the central and western equatorial Pacific is reproducible with the standard guess that the distant wind forcing affects the Niño-3 surface temperature indirectly by exciting equatorial Kelvin and Rossby waves and modulating thermocline depth in the Niño-3 region. The current adjoint sensitivity study is consistent with a previous regression-based sensitivity study derived from disruption experiments. finally, significance for ENSO monitor and prediction is besides discussed. Keywords : Surface temperature, Regression analysis, Forcing, Wind, ENSO Keywords: ENSO, Forcing, Regression analysis, Surface temperature, Wind ECCO Products Used: Adjoint ; ECCO-V1 ; OCCA URL: Other URLs:
Wang, Zeliang; Holloway, Greg; Hannah, Charles (2011). Effects of parameterized eddy stress on volume, heat, and freshwater transports through Fram Strait, Journal of Geophysical Research, C8 (116), C00D09, 10.1029/2010JC006871. Title: Effects of parameterized eddy stress on volume, heat, and fresh water transports through Fram Strait Type: Journal article Publication: Journal of Geophysical Research Author(s): Wang, Zeliang ; Holloway, Greg ; Hannah, Charles Year: 2011 Formatted Citation: Wang, Z., G. Holloway, and C. Hannah, 2011 : Effects of parameterized eddy stress on volume, heat, and fresh water transports through Fram Strait. Journal of Geophysical Research, 116 ( C8 ), C00D09, doi:10.1029/2010JC006871 Abstract: Coarse-resolution models, such as those used in climate studies, often do not properly represent transports through narrow-minded channels. We consider the climatically significant transports of volume, heat, and fresh water through Fram Strait. A coarse grid ( nominally 1° ) global ocean model is seen to underrepresent exchanges. We test effects of eddy tension ( Neptune ) parameterization, finding strengthen volume exchanges both to and from the Arctic and increased mean north heat transport while limiting southerly fresh water export. Results are closer to observed transports and to results from fine-resolution models. This study finds that the effects of the eddy stress on temporal role variations of transports are small. Keywords: 4299 General or assorted, Fram Strait, eddy stress, transports ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1029/2010JC006871 Other URLs: hypertext transfer protocol : //dx.doi.org/10.1029/2010JC006871
Lan, Kuo Wei; Lee, Ming An; Lu, Hsueh Jung; Shieh, Wei Juan; Lin, Wei Kuan; Kao, Szu Chia (2011). Ocean variations associated with fishing conditions for yellowfin tuna (Thunnus albacares) in the equatorial Atlantic Ocean, ICES Journal of Marine Science, 6 (68), 1063-1071, 10.1093/icesjms/fsr045. Title: Ocean variations associated with fish conditions for yellowfin tuna ( Thunnus albacares ) in the equatorial Atlantic Ocean Type: Journal article Publication: ICES Journal of Marine Science Author(s): Lan, Kuo Wei ; Lee, Ming An ; Lu, Hsueh Jung ; Shieh, Wei Juan ; Lin, Wei Kuan ; Kao, Szu Chia Year: 2011 Formatted Citation: Lan, K. W., M. A. Lee, H. J. Lu, W. J. Shieh, W. K. Lin, and S. C. Kao, 2011 : ocean variations associated with fishing conditions for yellowfin tuna ( Thunnus albacares ) in the equatorial Atlantic Ocean. ICES Journal of Marine Science, 68 ( 6 ), 1063-1071, doi:10.1093/icesjms/fsr045 Abstract: Lan, K-W., Lee, M-A., Lu, H-J., Shieh, W-J., Lin, W-K., and Kao, S-C. 2011. Ocean variations associated with fishing conditions for yellowfin tuna ( Thunnus albacares ) in the equatorial Atlantic Ocean. – ice Journal of Marine Science, 68 : 1063-1071. In this study, the taiwanese longline ( LL ) fishery data were divided into two types : regular LL and trench LL. furthermore, we collected environmental variables, such as ocean coat temperature ( SST ), subsurface temperature, chlorophyll a assiduity, net primary productivity, windspeed, and the north tropical Atlantic SST exponent ( NTA ) during the time period 1998-2007 to investigate the relationship between LL catch data and oceanic environmental factors using star component psychoanalysis ( PCA ). After the daily LL was separated into two types of LL, the results indicated that the deep LL was the major fishery catching yellowfin tuna ( YFT ) in the equatorial Atlantic Ocean. In 2003-2005, particularly in 2005, the monthly catch by deep LL was duplicate those of other years. The spatial distribution of the noun phrase catch per unit attempt ( cpue ) by deep LL showed the utmost collection of YFT in waters with temperature above 24-25°C. The YFT chiefly aggregated in the equatorial Atlantic, extending east in the first and moment quarters of the class. In the third quarter of the year, the SST decreased off West Africa and the YFT migrated westwards to 15°W. Results of PCA indicated that higher subsurface water system temperatures resulted in a deeper thermocline and caused a higher cpue of YFT, but the influence of NTA on the cpue of YFT seemed to be insignificant. Keywords: equatorial Atlantic Ocean, principal part psychoanalysis, satellite oceanography, yellowfin tuna ECCO Products Used: ECCO-KFS URL: Other URLs:
Follows, Michael J.; Dutkiewicz, Stephanie (2011). Modeling Diverse Communities of Marine Microbes, Annual Review of Marine Science, 1 (3), 427-451, 10.1146/annurev-marine-120709-142848. Title: Modeling Diverse Communities of Marine Microbes Type: Journal article Publication: Annual Review of Marine Science Author(s): Follows, Michael J. ; Dutkiewicz, Stephanie Year: 2011 Formatted Citation: Follows, M. J., and S. Dutkiewicz, 2011 : Modeling Diverse Communities of Marine Microbes. Annual Review of Marine Science, 3 ( 1 ), 427-451, doi:10.1146/annurev-marine-120709-142848 Abstract: Biogeochemical cycles in the ocean are mediated by complex and diverse microbial communities. Over the past ten, marine ecosystem and biogeochemistry models have begun to address some of this diversity by resolving several groups of ( by and large autotrophic ) plankton, differentiated by biogeochemical function. hera, we review recent model approaches that are rooted in the notion that an even richer diverseness is fundamental to the organization of marine microbial communities. These models begin to resolve, and address the meaning of, diverseness within functional groups. Seeded with diverse populations spanning official regions of trait outer space, these simulations self-select community structure according to relative fitness in the virtual environment. such models are suited to considering ecological questions, such as the regulation of patterns of biodiversity, and to simulating the response to changing environments. A key issue for all such models is the constraint of viable trait outer space and trade-offs. Size-structuring and mechanistic descriptions of energy and resource allotment at the person level can rationalize these constraints. Keywords: community social organization, microbes, phytoplankton, traits ECCO Products Used: ECCO2URL: http://www.annualreviews.org/doi/abs/10.1146/annurev-marine-120709-142848 Other URLs: hypertext transfer protocol : //www.annualreviews.org/doi/10.1146/annurev-marine-120709-142848
Rampal, P; Weiss, J; Dubois, C; Campin, Jean-Michel (2011). IPCC climate models do not capture Arctic sea ice drift acceleration: Consequences in terms of projected sea ice thinning and decline, Journal of Geophysical Research: Oceans, C8 (116), 10.1029/2011JC007110. Title: IPCC climate models do not capture Arctic sea ice drift acceleration : Consequences in terms of projected sea ice thinning and decline Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Rampal, P ; Weiss, J ; Dubois, C ; Campin, Jean-Michel Year: 2011 Formatted Citation: Rampal, P., J. Weiss, C. Dubois, and J. Campin, 2011 : IPCC climate models do not capture Arctic sea ice freewheel acceleration : Consequences in terms of projected sea ice rink thinning and descent. J. Geophys. Res. Ocean., 116 ( C8 ), doi:10.1029/2011JC007110 Abstract: IPCC climate models underestimate the decrease of the Arctic sea ice extent. The late Arctic sea ice descent is besides characterized by a rapid reduce and by an increase of sea ice kinematics ( velocities and contortion rates ), with both processes being coupled through positive feedbacks. In this analyze we show that IPCC climate models underestimate the observe thinning course by a factor of about 4 on average and fail to capture the associated accelerated motion. The coupling between the ice express ( thickness and concentration ) and ice speed is by chance weak in most models. In especial, sea internal-combustion engine drifts faster during the months when it is thick and packed than when it is slender, contrary to what is observed ; besides models with larger long-run cutting trends do not show higher drift acceleration. This watery pair behavior ( 1 ) suggests that the incontrovertible feedbacks mentioned above are underestimate and ( 2 ) can partially explain the models ‘ underestimate of the recent sea ice area, thickness, and speed trends. Due partially to this weak coupling, ice export does not play an authoritative function in the simulate negative balance of Arctic sea ice multitude between 1950 and 2050. If we assume a positivist vogue on frost speeds at straits equivalent to the one observed since 1979 within the Arctic washbasin, first-order estimations give shrink and thinning trends that become importantly closer to the observations. Keywords: 0750 Sea ice, 0762 Mass libra, 0798 Modeling, 1626 Global climate models, Arctic, IPCC climate models, decline, kinematics, sea-ice ECCO Products Used: URL: http://dx.doi.org/10.1029/2011JC007110 Other URLs:
Drozdowski, A.; Nudds, S.; Hannah, C. G.; Niu, H.; Peterson, I.; Perrie, W. (2011). Review of Oil Spill Trajectory Modelling in the Presence of Ice. Title: Review of Oil Spill Trajectory Modelling in the Presence of Ice Type: Report Publication: Author(s): Drozdowski, A. ; Nudds, S. ; Hannah, C. G. ; Niu, H. ; Peterson, I. ; Perrie, W. Year: 2011 Formatted Citation: Drozdowski, A., S. Nudds, C. G. Hannah, H. Niu, I. Peterson, and W. Perrie, 2011 : review of Oil Spill Trajectory Modelling in the Presence of Ice., Dartmouth, Nova Scotia, Canada, 90 pp. hypertext transfer protocol : //www.iob-bio.gc.ca/science/research-recherche/ocean/ice-glace/documents/drozdowski01.pdf. Abstract: This composition addresses marine petroleum spill trajectory modelling with a focus on the Arctic environment. The elementary goals are a synthesis of the state-of-knowledge on oil spill trajectory model and the designation of the keystone gaps in this cognition as it applies to the Canadian Arctic. The review addresses all the components of a comprehensive examination oil spillway trajectory model including 1 ) a blowout overcharge model to determine the distribution of petroleum in the water column for spills that occur at depth, 2 ) models for the physical environmental force ( wind, air temperature, precipitation, ocean currents, sea ice and waves ) ; and 3 ) an vegetable oil fate-and-effects model to address weather, dehydration, ice-oil interactions, and other details of the oil ‘s interplay with the environment. Novel challenges presented by the Arctic environment include the presence of ocean internal-combustion engine, sparse observations of ocean currents and limit ability to monitor the spillway ‘s development. Keywords: ECCO Products Used: ECCO2URL: http://www.iob-bio.gc.ca/science/research-recherche/ocean/ice-glace/documents/drozdowski01.pdf Other URLs:
Yang, Qinghua; Liu, Yuping; Zhang, Zhanhai; Wu, Huizhen; Li, Qun; Xing, Jianyon (2011). A Preliminary Study of the Arctic Sea Ice Numerical Forecasting: Coupled Sea Ice-Ocean Modelling Experiments Based on MITgcm, Chinese Journal of Atmospheric Sciences, 3 (35), 473-482, 10.3878/j.issn.1006-9895.2011.03.08. Title: A Preliminary Study of the Arctic Sea Ice Numerical prediction : Coupled Sea Ice-Ocean Modelling Experiments Based on MITgcm Type: Journal article Publication: Chinese Journal of Atmospheric Sciences Author(s): Yang, Qinghua ; Liu, Yuping ; Zhang, Zhanhai ; Wu, Huizhen ; Li, Qun ; Xing, Jianyon Year: 2011 Formatted Citation: Yang, Q., Y. Liu, Z. Zhang, H. Wu, Q. Li, and J. Xing, 2011 : A Preliminary Study of the Arctic Sea Ice Numerical prediction : Coupled Sea Ice-Ocean Modelling Experiments Based on MITgcm. chinese Journal of Atmospheric Sciences, 35 ( 3 ), 473-482, doi:10.3878/j.issn.1006-9895.2011.03.08 Abstract: Using the recently developed MITgcm ( MIT General Circulation Model ) sea ice-ocean yoke model, the NCEP ( National Environmental Prediction Center ) reanalyzed data for the atmospheric forcing sphere from January 1992 to December 2009. numeral pretense of Arctic sea frost. The results show that this model can well simulate the Arctic sea ice temper and interannual variation observed by satellite, and has a good numeric pretense ability of Arctic sea ice. Based on this, four sets of post-test studies were conducted on the two cases of Arctic sea frost ablation and growth in July and October 2009. The NCEP reanalyzed the climatic battlefield and NCEPGFS ( Global Forecast System ) prognosis datum as atmospheric force fields, and adopted two unlike SSM/I ( dedicated microwave imager ) sea methamphetamine concentration low-level formatting schemes. The comparison of forecast results with SSM/I, adenine well as forecast skill analysis, shows that this model has short-run calculate capabilities for Arctic ocean ice. The difference in atmospheric pull plain is not significant for the improvement of sea frost prediction, and the prediction of SSM/I sea ice assiduity to reduce the initial error can better simulate the fade and growth of sea ice. In summation, the ocean ice concentration of the model simulation is slightly higher, and the pretense ability of the sea internal-combustion engine freezing process is better than the ablation work. Keywords: ECCO Products Used: ECCO2 ; SeaIceURL: http://www.cqvip.com/qk/91836x/201103/38404569.html Other URLs:
Campin, Jean-Michel; Hill, Chris; Jones, Helen; Marshall, John (2011). Super-parameterization in ocean modeling: Application to deep convection, Ocean Modelling, 1-2 (36), 90-101, 10.1016/j.ocemod.2010.10.003. Title: Super-parameterization in ocean modeling : application to deep convection Type: Journal article Publication: Ocean Modelling Author(s): Campin, Jean-Michel ; Hill, Chris ; Jones, Helen ; Marshall, John Year: 2011 Formatted Citation: Campin, J., C. Hill, H. Jones, and J. Marshall, 2011 : Super-parameterization in ocean model : lotion to deep convection. Ocean Modelling, 36 ( 1-2 ), 90-101, doi:10.1016/j.ocemod.2010.10.003 Abstract: Keywords: Deep convection, Multi-scale model, Ocean modeling ECCO Products Used: URL: http://www.sciencedirect.com/science/article/pii/S1463500310001496 Other URLs:
Manizza, M; Follows, Michael J.; Dutkiewicz, Stephanie; Menemenlis, Dimitris; McClelland, J W; Hill, C N; Peterson, B J; Key, R M (2011). A model of the Arctic Ocean carbon cycle, Journal of Geophysical Research: Oceans, C12 (116), 10.1029/2011JC006998. Title: A model of the Arctic Ocean carbon bicycle Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Manizza, M ; Follows, Michael J. ; Dutkiewicz, Stephanie ; Menemenlis, Dimitris ; McClelland, J W ; Hill, C N ; Peterson, B J ; Key, R M Year: 2011 Formatted Citation: Manizza, M., M. J. Follows, S. Dutkiewicz, D. Menemenlis, J. W. McClelland, C. N. Hill, B. J. Peterson, and R. M. Key, 2011 : A model of the Arctic Ocean carbon paper cycle. J. Geophys. Res. Ocean., 116 ( C12 ), doi:10.1029/2011JC006998 Abstract: A three dimensional model of Arctic Ocean circulation and shuffle, with a horizontal solution of 18 kilometer, is overlain by a biogeochemical model resolving the forcible, chemical and biological ecstasy and transformations of phosphorus, alkalinity, oxygen and carbon paper, including the air-sea switch over of dissolve gases and the riverine pitch of dissolved organic carbon. The mannequin qualitatively captures the watch regional and seasonal worker trends in surface ocean PO4, dissolved inorganic carbon, total alkalinity, and pCO2. Integrated annually, over the basin, the model suggests a net annual uptake of 59 Tg C a−1, within the rate of published estimates based on the extrapolation of local observations ( 20-199 Tg C a−1 ). This flux is attributable to the cool ( increasing solubility ) of waters moving into the basin, chiefly from the subpolar North Atlantic. The air-sea flux is regulated seasonally and regionally by sea-ice cover charge, which modulates both air-sea natural gas transportation and the photosynthetic production of organic matter, and by the delivery of riverine dissolved organic carbon ( RDOC ), which drive the regional contrasts in pCO2 between Eurasian and North American coastal waters. Integrated over the washbasin, the delivery and remineralization of RDOC reduces the net oceanic CO2 consumption by ∼10 %. Keywords: 0428 Carbon cycle, 0793 Biogeochemistry, 4207 Arctic and Antarctic oceanography, 4805 Biogeochemical cycles, 4820 Gases, air-sea gas exchange, and modelin, biogeochemical cycles, land-ocean coupling, numerical mold, ocean carbon cycle, pivotal oceans, processes ECCO Products Used: ECCO2URL: http://dx.doi.org/10.1029/2011JC006998 Other URLs:
Tulloch, Ross; Hill, Chris; Jahn, Oliver (2011). Possible Spreadings of Buoyant Plumes and Local Coastline Sensitivities Using Flow Syntheses From 1992 to 2007, Monitoring and Modeling the Deepwater Horizon Oil Spill: A Record-Breaking Enterprise, 245-255, 10.1029/2011GM001125. Title: possible Spreadings of Buoyant Plumes and Local Coastline Sensitivities Using Flow Syntheses From 1992 to 2007 Type: Book section Publication: Monitoring and Modeling the Deepwater Horizon Oil Spill : A record-breaking enterprise Author(s): Tulloch, Ross ; Hill, Chris ; Jahn, Oliver Year: 2011 Formatted Citation: Tulloch, R., C. Hill, and O. Jahn, 2011 : possible Spreadings of Buoyant Plumes and Local Coastline Sensitivities Using Flow Syntheses From 1992 to 2007. monitoring and Modeling the Deepwater Horizon Oil Spill : A record-breaking enterprise, American Geophysical Union, 245-255, doi:10.1029/2011GM001125 Abstract: We award results from an corps de ballet of simulations where a buoyant dye is injected at the site of the Deepwater Horizon blowout from April 20 to July 15 of each year between 1992 and 2007. ocean currents are taken from observationally constrained Estimating the Circulation and Climate of the Ocean Phase 2 ( ECCO2 ) project state estimates spanning 1992 to 2007. Starting from this basis, we explore the utility program of adjoint equations in allowing proactive evaluation of regional impact likelihood. Forward integrations are performed to assess the corps de ballet bedspread of the preen, the character of increased resolving power of ocean eddies, and to compare spreading metrics using an Eulerian tracer and Lagrangian particles. Spreading statistics compare well with previous studies, and the Lagrangian and Eulerian approaches predict exchangeable spread- ing rates, allowing some confidence in adjoint sensitivity analysis of the vulnerability of different local coastline regions to be conducted. exercise adjoint calculations indicate that coastline of the Mississippi Delta is most sensible to spills on the continental shelf off adjacent to Mississippi and Alabama, while Cape Hatteras, for exercise, is most sensitive to spills on the continental shelf from Delaware to South Carolina. Combined with accurate estimates of historic currents and winds, we argue that the adjoint approach we describe can be a useful regional plan and readiness creature. Using the adjoint approach, local anesthetic communities can proactively identify spill locations to which they are specially vulnerable, allowing for better readiness and more efficient response to any future incidents. Keywords: ECCO Products Used: ECCO2 ; adjointURL: http://www.agu.org/books/gm/v195/2011GM001125/2011GM001125.shtml Other URLs: hypertext transfer protocol : //ocean.mit.edu/~tulloch/Publications/tulloch_etalagu11.pdf
Downes, S M; Gnanadesikan, A; Griffies, S M; Sarmiento, J L (2011). Water Mass Exchange in the Southern Ocean in Coupled Climate Models, Journal of Physical Oceanography, 9 (41), 1756-1771, 10.1175/2011jpo4586.1. Title: Water Mass Exchange in the southern Ocean in Coupled Climate Models Type: Journal article Publication: Journal of Physical Oceanography Author(s): Downes, S M ; Gnanadesikan, A ; Griffies, S M ; Sarmiento, J L Year: 2011 Formatted Citation: Downes, S. M., A. Gnanadesikan, S. M. Griffies, and J. L. Sarmiento, 2011 : Water Mass Exchange in the southern Ocean in Coupled Climate Models. Journal of Physical Oceanography, 41 ( 9 ), 1756-1771, doi:10.1175/2011jpo4586.1 Abstract: The authors estimate urine batch transformation rates resulting from surface buoyancy fluxes and inside diapycnal fluxes in the region south of 30 degrees S in the Estimating the Circulation and Climate of the Ocean ( ECCO ) model-based express estimate and three free-running coupled climate models. The meridional enchant of deep and intermediate waters across 30 degrees S agrees well between models and observationally based estimates in the Atlantic Ocean but not in the indian and Pacific, where the model-based estimates are much smaller. Associated with this, in the models about half the southward-flowing deep water is converted into lighter waters and half is converted to denser bottom waters, whereas the observationally based estimates convert most of the inflowing deep water to bottom waters. In the models, both Antarctic Intermediate Water ( AAIW ) and Antarctic Bottom Water ( AABW ) are formed primarily via an inside diapycnal transformation rather than being transformed at the surface via heating system or fresh water fluxes. Given the little vertical diffusivity specified in the models in this region, the authors conclude that other processes such as cabbeling and thermobaricity must be playing an important function in water aggregate transformation. finally, in the models, the largest contribution of the surface buoyancy fluxes in the southern Ocean is to convert Upper Circumpolar Deep Water ( UCDW ) and AAIW into idle Subantarctic Mode Water ( SAMW ). Keywords: air-sea fluxes, deacon cell, flow patterns, general-circulation, ball-shaped ocean, ice, overturning circulation, simulation, sum geostrophic circulation, transformation ECCO Products Used: OCCA URL: Other URLs:
Davis, Xujing Jia; Rothstein, Lewis M; Dewar, William K; Menemenlis, Dimitris (2011). Numerical Investigations of Seasonal and Interannual Variability of North Pacific Subtropical Mode Water and Its Implications for Pacific Climate Variability, Journal of Climate, 11 (24), 2648-2665, 10.1175/2010JCLI3435.1. Title: Numerical Investigations of Seasonal and Interannual Variability of North Pacific Subtropical Mode Water and Its Implications for Pacific Climate Variability Type: Journal article Publication: Journal of Climate Author(s): Davis, Xujing Jia ; Rothstein, Lewis M ; Dewar, William K ; Menemenlis, Dimitris Year: 2011 Formatted Citation: Davis, X. J., L. M. Rothstein, W. K. Dewar, and D. Menemenlis, 2011 : numeric Investigations of Seasonal and Interannual Variability of North Pacific Subtropical Mode Water and Its Implications for Pacific Climate Variability. J. Clim., 24 ( 11 ), 2648-2665, doi:10.1175/2010JCLI3435.1 Abstract: North Pacific Subtropical Mode Water ( NPSTMW ) is an essential feature of the North Pacific subtropical coil imparting significant influence on regional SST development on seasonal and longer prison term scales and, as such, is an authoritative component of basin-scale North Pacific climate unevenness. This study examines the seasonal-to-interannual variability of NPSTMW, the physical processes responsible for this variability, and the connections between NPSTMW and basin-scale climate signals using an eddy-permitting 1979-2006 ocean model made available by the Estimating the Circulation and Climate of the Ocean, Phase II ( ECCO2 ). The monthly mean seasonal worker hertz of NPSTMW in the model exhibits three discrete phases : ( i ) formation during November-March, ( two ) isolation during March-June, and ( three ) dissipation during June-November-each corresponding to significant changes in upper-ocean structure. An interannual bespeak is besides discernible in NPSTMW volume and early characteristic properties with book minima occurring in 1979, 1988, and 1999. This volume variability is correlated with the Pacific decadal cycle ( PDO ) with zero time lag. far analyses demonstrate the connection of NPSTMW to the basin-scale ocean circulation. With this, modulations of upper-ocean structure driven by the varying force and position of the westerlies a well as the regional air-sea heat liquefy design are seen to contribute to the unevenness of NPSTMW volume on interannual prison term scales. Keywords: Interannual variability, North, Seasonal unevenness ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/abs/10.1175/2010JCLI3435.1 Other URLs:
LI, Qun; WU, Huiding; Zhang, Lu (2011). Fine-scale simulation of the seasonal variations of sea ice cover in the Prydz bay, Antarctic, Acta Oceanologica Sinica, 5 (33), 32-38. Title: Fine-scale pretense of the seasonal variations of ocean ice cover in the Prydz bay, Antarctic Type: Journal article Publication: Acta Oceanologica Sinica Author(s): LI, Qun ; WU, Huiding ; Zhang, Lu Year: 2011 Formatted Citation: LI, Q., H. WU, and L. Zhang, 2011 : Fine-scale pretense of the seasonal variations of sea ice cover in the Prydz bay, Antarctic. Acta Oceanologica Sinica, 33 ( 5 ), 32-38 Abstract: Keywords: ECCO Products Used: ECCO2 ; SeaIce URL: Other URLs:
DeVries, Tim; Primeau, François (2011). Dynamically and Observationally Constrained Estimates of Water-Mass Distributions and Ages in the Global Ocean, Journal of Physical Oceanography, 12 (41), 2381-2401, 10.1175/JPO-D-10-05011.1. Title: Dynamically and Observationally Constrained Estimates of Water-Mass Distributions and Ages in the Global Ocean Type: Journal article Publication: Journal of Physical Oceanography Author(s): DeVries, Tim ; Primeau, François Year: 2011 Formatted Citation: DeVries, T., and F. Primeau, 2011 : Dynamically and Observationally Constrained Estimates of Water-Mass Distributions and Ages in the Global Ocean. Journal of Physical Oceanography, 41 ( 12 ), 2381-2401, doi:10.1175/JPO-D-10-05011.1 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/abs/10.1175/JPO-D-10-05011.1 Other URLs:
Ivchenko, V. O.; Sidorenko, D.; Danilov, S.; Losch, M.; Schröter, J. (2011). Can sea surface height be used to estimate oceanic transport variability?, Geophysical Research Letters, 11 (38), 10.1029/2011GL047387. Title: Can sea come on altitude be used to estimate oceanic transportation unevenness ? Type: Journal article Publication: Geophysical Research Letters Author(s): Ivchenko, V. O. ; Sidorenko, D. ; Danilov, S. ; Losch, M. ; Schröter, J. Year: 2011 Formatted Citation: Ivchenko, V. O., D. Sidorenko, S. Danilov, M. Losch, and J. Schröter, 2011 : Can sea surface stature be used to estimate oceanic transmit variability ? Geophys. Res. Lett., 38 ( 11 ), doi:10.1029/2011GL047387 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1029/2011GL047387 Other URLs:
Ubelmann, Clement; Fu, Lee-Lueng (2011). Cyclonic eddies formed at the Pacific tropical instability wave fronts, Journal of Geophysical Research: Oceans, C12 (116), 10.1029/2011JC007204. Title: Cyclonic eddies formed at the Pacific tropical instability wave fronts Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Ubelmann, Clement ; Fu, Lee-Lueng Year: 2011 Formatted Citation: Ubelmann, C., and L. Fu, 2011 : cyclonic eddies formed at the Pacific tropical instability wave fronts. J. Geophys. Res. Ocean., 116 ( C12 ), doi:10.1029/2011JC007204 Abstract: Sea surface temperature images and surface vagrant observations are compared to the results from a high-resolution numeric simulation to study the properties of cyclonic eddies generated at the concentration front of the tropical instability waves in the tropical Pacific Ocean. These cyclonic eddies, of which the diameter is about 30-100 kilometer and the vertical extent is limited to the upper berth 100 thousand in depth, have forcible characteristics similar to those of smaller submesoscale eddies at the midlatitudes according to the model. They have highly coherent structures below the surface, carrying cold and salty upwelled equatorial water probably rich in marine life. The stretch and tilt of the upper layer of the ocean provides the main mechanism responsible for the acute cyclonic vorticity of the eddies, involving building complex development of the concentration playing field into occluded fronts. Keywords: 4283 Water masses, 4520 Eddies and mesoscale processes, 4528 Fronts and jets, 4572 Upper ocean and assorted level processes, TIW, eddy, front ECCO Products Used: ECCO2 ; LL_hiresURL: http://dx.doi.org/10.1029/2011JC007204 Other URLs:
Aretxabaleta, A L; Smith, K W (2011). Analyzing state-dependent model-data comparison in multi-regime systems, Computational Geosciences, 4 (15), 627-636, 10.1007/s10596-011-9229-3. Title: Analyzing state-dependent model-data comparison in multi-regime systems Type: Journal article Publication: Computational Geosciences Author(s): Aretxabaleta, A L ; Smith, K W Year: 2011 Formatted Citation: Aretxabaleta, A. L., and K. W. Smith, 2011 : Analyzing state-dependent model-data comparison in multi-regime systems. computational Geosciences, 15 ( 4 ), 627-636, doi:10.1007/s10596-011-9229-3 Abstract: An approach to analyze government change in spatial clock time series datasets is followed and extended to jointly analyze a dynamic model depicting regimen switch and experimental data informing the lapp process. We analyze changes in the joint model-data regimen and covariability within each government. The method acting is applied to two experimental datasets of equatorial sea surface temperature ( TAO/TRITON array and satellite ) and compared with the predicted data by the ECCO-JPL model system. Keywords: Data cluster, ENSO, gaussian concoction models, Skill assessment, climate, dynamics, ocean, survival, temperature, time-series, unevenness ECCO Products Used: ECCO-KFS URL: Other URLs:
Dorman, Jeffrey G. (2011). The Influence of Seasonal and Decadal Trends in Coastal Ocean Processes on the Population Biology of the krill species Euphausia pacifica: Results of a coupled ecosystem and individual based modeling study. Title: The Influence of Seasonal and Decadal Trends in Coastal Ocean Processes on the Population Biology of the krill species Euphausia pacifica : Results of a coupled ecosystem and individual based model study Type: thesis Publication: Author(s): Dorman, Jeffrey G. Year: 2011 Formatted Citation: Dorman, J. G., 2011 : The Influence of Seasonal and Decadal Trends in Coastal Ocean Processes on the Population Biology of the krill species Euphausia pacifica : Results of a couple ecosystem and person based model study., 98 pp. hypertext transfer protocol : //escholarship.org/uc/item/5q8498kw. Abstract: Krill of the California Current play a all-important character in the transfer of chief production up to many commercially important higher trophic levels. Understanding the short clock scale ( weeks to seasonal ) and long time scale ( decadal ) variability in abundance, condition, and spatial patterns that results from changes in ocean conditions is critical if we hope to manage the fishery of any higher trophic levels from more than a individual species approach. I have coupled a suite of models in an undertake to understand the impacts of changing ocean conditions on this important prey detail. The coastal ocean was simulated with a normally used oceanographic model ( regional Ocean Modeling System ) coupled with an ecosystem model ( Nutrient, Phytoplankton, Zooplankton, Detritus ). The coastal ocean was simulated from Newport, OR to Point Conception, CA over an 18-year period ( 1991 – 2008 ). These model results were used to force a three-dimensional individual based model ( IBM ) that was parameterized to represent the krill species Euphausia pacifica. biological processes of the IBM ( growth, life-stage progress, mortality, replica, upright migration ) were compared to laboratory data and sphere data under varying food and temperature conditions to understand how well the model can reproduced know biological rates and processes. The model performs well at simulating growth, life stage progression, and reproduction, as these are the areas from which there is an abundance of data from which to parameterize the model. Results from simulations of larval and adult populations indicated the greatest amount growth in both larval and adult populations was over the six- month period from April through October. Mortality was greatest for larva during the winter ( when food resources are typically lowest ), but deathrate was greatest for adults during summer due to offshore transportation of individuals to regions of ardent open waters and reduced food concentration. discipline of individuals and deathrate of individuals correlated positively with the more productive phase of the Pacific Decadal Oscillation and the North Pacific Decadal Oscillation, providing tell the impact of ocean washbasin scale atmospheric conditions on krill. The impacts of atmospheric forcing on E. pacifica are important factors that control the distribution, abundance and productivity of this crucial prey detail for many commercially important fisheries of the West Coast of the United States. Keywords: ECCO Products Used: ECCO2URL: https://escholarship.org/uc/item/5q8498kw Other URLs:
Nguyen, An T; Menemenlis, Dimitris; Kwok, Ronald (2011). Arctic ice-ocean simulation with optimized model parameters: Approach and assessment, Journal of Geophysical Research: Oceans, C4 (116), 10.1029/2010JC006573. Title: Arctic ice-ocean simulation with optimize model parameters : approach and appraisal Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Nguyen, An T ; Menemenlis, Dimitris ; Kwok, Ronald Year: 2011 Formatted Citation: Nguyen, A. T., D. Menemenlis, and R. Kwok, 2011 : arctic ice-ocean pretense with optimize model parameters : approach and appraisal. J. Geophys. Res. Ocean., 116 ( C4 ), doi:10.1029/2010JC006573 Abstract: We present an optimize 1992-2008 coupled ice-ocean simulation of the Arctic Ocean. A Green ‘s function access adjusts a determine of parameters for best model-data agreement. overall, model-data differences are reduced by 45 %. The optimize model reproduces the negative trends in frosting extent in the satellite records. volume and thickness distributions are comparable to those from the Ice, Cloud, and state Elevation Satellite ( 2003-2008 ). The upper cold halocline is consistent with observations in the westerly Arctic. The fresh water budget of the Arctic Ocean and volume/heat transports of Pacific and Atlantic waters across major passages are comparable with observation-based estimates. We note that the optimize parameters depend on the selected atmospheric force. The function of the 25 year japanese reanalysis results in sea ice albedos that are coherent with field observations. Simulated Pacific Water enters the Bering Strait and flows off the Chukchi Shelf along four discrete channels. This water system takes ∼5-10 years to exit the Arctic Ocean at the Canadian Arctic Archipelago, Nares, or Fram straits. Atlantic Water entering the Fram Strait flows eastward, merges with the St Ana Trough inflow, and splits into two branches at the southwest corner of the Makarov Basin. One ramify flows along Lomonosov Ridge back to Fram Strait. The other enters the western Arctic, circulates cyclonically below the halocline, and exits chiefly through the Nares and Fram straits. This work utilizes the record of available observations to obtain an Arctic Ocean simulation that is in agreement with observations both within and beyond the optimization menstruation and that can be used for tracer and serve studies. Keywords: 1910 Data assimilation, 1952 Modeling, 4207 Arctic and Antarctic oceanography, 4283 Water masses, 4540 Ice mechanics and air/sea/ice exchange proces, Arctic, data, integration and fusion, model, ocean, optimization, sea frost ECCO Products Used: ECCO2 ; SeaIceURL: http://dx.doi.org/10.1029/2010JC006573 Other URLs:
Ron, Cyril; Vondrák, Jan (2011). Coherence between geophysical excitations and celestial pole offsets, Acta Geodyn. Geomater., 3 (8), 243-247. Title: Coherence between geophysical excitations and celestial pole offsets Type: Journal article Publication: Acta Geodyn. Geomater. Author(s): Ron, Cyril ; Vondrák, Jan Year: 2011 Formatted Citation: Ron, C., and J. Vondrák, 2011 : coherence between geophysical excitations and celestial pole offsets. Acta Geodyn. Geomater., 8 ( 3 ), 243-247 Abstract: Celestial pole offsets are the displacements between the observe position of the Earth ‘s spin axis in quad and its position predicted by the adopted models of precession and nutation. At present, the models are IAU2006 and IAU 2000, respectively. The celestial pole offsets are regularly measured by Very Long-Baseline Interferometry ( VLBI ), the observations being coordinated and published by the International VLBI Service for Geodesy and Astrometry ( IVS ). These offsets contain a mixture of several effects : the unpredictable spare term, Free Core Nutation ( FCN ) that is due to the presence of the out fluid core of the Earth, forced motions excited by the motions in the standard atmosphere and oceans, and besides imperfections of the adopted precession-nutation models. The geophysical excitations are besides available, as determined by several atmospheric and oceanographic services. The target of this paper is to compare the time series of these integrated excitations with the observe celestial pole offsets and estimate the level of coherence between them. Keywords: celestial pole offsets, coherence, geophysical excitations ECCO Products Used: ECCO-KFS URL: Other URLs:
Condron, Alan; Winsor, Peter (2011). A subtropical fate awaited freshwater discharged from glacial Lake Agassiz, Geophysical Research Letters, 3 (38), 10.1029/2010GL046011. Title: A subtropical destiny awaited fresh water discharged from frigid Lake Agassiz Type: Journal article Publication: Geophysical Research Letters Author(s): Condron, Alan ; Winsor, Peter Year: 2011 Formatted Citation: Condron, A., and P. Winsor, 2011 : A subtropical destiny awaited fresh water discharged from glacial Lake Agassiz. Geophys. Res. Lett., 38 ( 3 ), doi:10.1029/2010GL046011 Abstract: The 8.2 kyr consequence is the largest abrupt climatic transfer recorded in the final 10,000 years, and is wide hypothesized to have been triggered by the release of thousands of kilometers cubed of fresh water into the North Atlantic Ocean. Using a high-resolution ( 1/6° ) ball-shaped, ocean-ice circulation model we present an option horizon that fresh water discharged from frigid Lake Agassiz would have remained on the continental ledge as a narrow, buoyant, coastal current, and would have been transported south into the subtropical North Atlantic. The pathway we describe is in contrast to the conceptual mind that fresh water from this lake outburst spread over most of the sub-polar North Atlantic, and covered the bass, open-ocean, convection regions. This coastally confined freshwater pathway is reproducible with the contemporary route of fresh water from Hudson Bay, vitamin a well as paleoceanographic evidence of this consequence. Using a coarse-resolution ( 2.6° ) adaptation of the same mannequin, we demonstrate that the previously reported spread of fresh water across the sub-polar North Atlantic results from the inability of numerical models of this settlement to accurately resolve pin down coastal flows, producing alternatively a diffuse circulation that advects freshwater off from the boundaries. To understand the climatic impingement of fresh water released in the past or future ( e.g. Greenland and Antarctica ), the ocean needs to be modeled at a resolution sufficient to resolve the dynamics of specialize, coastal buoyant flows. Keywords: 1605 Abrupt/rapid climate exchange, 3344 Paleoclimatology, 4528 Fronts and jets, 4962 Thermohaline, 5462 Polar regions, 8.2-kyr-event, abrupt climate change, buoyant flow, fresh water, meltwater, paleoclimate ECCO Products Used: ECCO2URL: http://dx.doi.org/10.1029/2010GL046011 Other URLs:
Hernandez, Fabrice (2011). Performance of Ocean Forecasting Systems-Intercomparison Projects, Operational Oceanography in the 21st Century, 633-655, 10.1007/978-94-007-0332-2_23. Title: Performance of Ocean Forecasting Systems-Intercomparison Projects Type: Book section Publication: Operational Oceanography in the twenty-first hundred Author(s): Hernandez, Fabrice Year: 2011 Formatted Citation: Hernandez, F., 2011 : performance of Ocean Forecasting Systems-Intercomparison Projects. Operational Oceanography in the twenty-first Century, A. Schiller, Eds., Springer Netherlands, 633-655, doi:10.1007/978-94-007-0332-2_23 Abstract: Predicting the adhere modality of flexible polypeptides to proteins is an crucial task that falls outside the domain of applicability of most little atom and protein−protein dock tools. here, we test the small molecule flexible ligand docking platform Glide on a set up of 19 non-α-helical peptides and systematically improve pose prediction accuracy by enhancing Glide sampling for flexible polypeptides. In addition, score of the poses was improved by post-processing with physics-based implicit solvent MM- GBSA calculations. Using the best RMSD among the circus tent 10 scoring poses as a measured, the success rate ( RMSD ≤ 2.0 Å for the interface anchor atoms ) increased from 21 % with default option Glide SP settings to 58 % with the enhance peptide sampling and scoring protocol in the shell of redocking to the native protein social organization. This approaches the accuracy of the recently developed Rosetta FlexPepDock method ( 63 % success for these 19 peptides ) while being over 100 times faster. Cross-docking was performed for a subset of cases where an unbound receptor structure was available, and in that case, 40 % of peptides were docked successfully. We analyze the results and find that the optimize polypeptide protocol is most accurate for run peptides of limited size and number of formal charges, defining a knowledge domain of applicability for this approach. Keywords: ECCO Products Used: ECCO-KFS ; ECCO-V1 ; ECCO-V2 ; GECCOURL: http://link.springer.com/10.1007/978-94-007-0332-2 Other URLs: hypertext transfer protocol : //link.springer.com/10.1007/978-94-007-0332-2_23
Monteiro, F M; Dutkiewicz, Stephanie; Follows, Michael J. (2011). Biogeographical controls on the marine nitrogen fixers, Global Biogeochemical Cycles, 2 (25), 10.1029/2010GB003902. Title: Biogeographical controls on the marine nitrogen fixers Type: Journal article Publication: Global Biogeochemical Cycles Author(s): Monteiro, F M ; Dutkiewicz, Stephanie ; Follows, Michael J. Year: 2011 Formatted Citation: Monteiro, F. M., S. Dutkiewicz, and M. J. Follows, 2011 : Biogeographical controls on the marine nitrogen fixers. Global Biogeochemical Cycles, 25 ( 2 ), doi:10.1029/2010GB003902 Abstract: We interpret the environmental controls on the global ocean diazotroph biogeography in the context of a cubic global model with a self-organizing phytoplankton community. As is observed, the model ‘s sum diazotroph population is distributed over most of the oligotrophic affectionate subtropical and tropical waters, with the exception of the southeastern Pacific Ocean. This biogeography broadly follows temperature and light constraints which are much used in both field-based and model studies to explain the distribution of diazotrophs. however, the model suggests that diazotroph habitat is not directly controlled by temperature and light, but is restricted to the ocean regions with abject fixed nitrogen and sufficient dissolved iron and phosphate concentrations. We interpret this regulation by iron and phosphate using resource competition theory which provides an excellent qualitative and quantitative framework. Keywords: 0469 Nitrogen bicycle, 4805 Biogeochemical cycles, 4815 Ecosystems, 4855 Phytoplankton, and modelin, and model, biogeography, dynamics, iron cycle, mannequin, nitrogen fixers, ocean, processes, resource rival theory, structure ECCO Products Used: ECCO-V2URL: http://dx.doi.org/10.1029/2010GB003902 Other URLs:
Kinney, Jaclyn Clement (2011). The Bering Sea : communication with the Western subarctic gyre, mesoscale activity, shelf-basin exchange, and the flow through Bering Strait. Title: The Bering Sea : communication with the Western subarctic coil, mesoscale action, shelf-basin rally, and the hang through Bering Strait Type: thesis Publication: Author(s): Kinney, Jaclyn Clement Year: 2011 Formatted Citation: Kinney, J. C., 2011 : The Bering Sea : communication with the Western subarctic coil, mesoscale action, shelf-basin switch over, and the flow through Bering Strait., 142 pp. hypertext transfer protocol : //hdl.handle.net/10945/10780. Abstract: A 1/12th-degree, pan-Arctic ice-ocean numeric model is used to better understand the circulation and exchanges in the Bering Sea. Understanding the physical oceanography of the Bering Sea is meaning for the U.S. Navy due to the expect addition in transport traffic and exploration of natural resources that will probably coincide with the ongoing retreat of sea ice in the western Arctic. This model represents a boastfully dance step forward in the ability to simulate the mesoscale eddies and meanders in the alaskan Stream and the deeply Bering Sea basin, which are shown to exert a strong control on the flow into and out of the western Aleutian Island passes. Model results show that upwelling of deep Bering Sea body of water, which is the primary source of nutrients for authoritative ecosystems of the Bering, Chukchi, and Beaufort seas, is enhanced by the presence of cyclonic eddies in the vicinity of canyons along the gradient. high values of eddy energizing energy in Bering and Anadyr straits help explain the areas of high biological productivity located just downstream in the Chirikov Basin and union of Bering Strait. Model results show significant horizontal and erect shear in the flow through Bering Strait, and indicate a want for more observations of the flow structure on a continuous basis. Keywords: ECCO Products Used: ECCO2URL: http://hdl.handle.net/10945/10780 Other URLs:
Roquet, Fabien; Wunsch, Carl; Madec, Gurvan (2011). On the Patterns of Wind-Power Input to the Ocean Circulation, Journal of Physical Oceanography, 12 (41), 2328-2342, 10.1175/JPO-D-11-024.1. Title: On the Patterns of Wind-Power Input to the Ocean Circulation Type: Journal article Publication: Journal of Physical Oceanography Author(s): Roquet, Fabien ; Wunsch, Carl ; Madec, Gurvan Year: 2011 Formatted Citation: Roquet, F., C. Wunsch, and G. Madec, 2011 : On the Patterns of Wind-Power Input to the Ocean Circulation. Journal of Physical Oceanography, 41 ( 12 ), 2328-2342, doi:10.1175/JPO-D-11-024.1 Abstract: Pathways of wind-power input signal into the ocean general circulation are analyzed using Ekman theory. direct rates of wind work can be calculated through the wind stress acting on the surface geostrophic flow. however, because that energy is transported laterally in the Ekman level, the injection into the geostrophic department of the interior is actually controlled by Ekman pumping, with a traffic pattern determined by the wind coil preferably than the wind itself. Regions of power injection into the geostrophic inside are frankincense generally shifted poleward compared to regions of direct wind-power input, most notably in the Southern Ocean, where on average energy enters the interior 10° south of the Antarctic Circumpolar Current core. An interpretation of the wind-power input to the interior is proposed, expressed as a downward blend of pressure work. This energy blend is a measure of the work done by the Ekman pumping against the come on elevation coerce, helping to maintain the observe anomaly of sea airfoil height relative to the global-mean sea level. Keywords: Ekman pumping/transport, Energy conveyance, Ocean cir ECCO Products Used: URL: http://journals.ametsoc.org/doi/abs/10.1175/JPO-D-11-024.1 Other URLs:
Tulloch, Ross R.; Marshall, John; Hill, Chris; Smith, K Shafer (2011). Scales, Growth Rates, and Spectral Fluxes of Baroclinic Instability in the Ocean, Journal of Physical Oceanography, 6 (41), 1057-1076, 10.1175/2011JPO4404.1. Title: Scales, Growth Rates, and Spectral Fluxes of Baroclinic Instability in the ocean Type: Journal article Publication: Journal of Physical Oceanography Author(s): Tulloch, Ross R. ; Marshall, John ; Hill, Chris ; Smith, K Shafer Year: 2011 Formatted Citation: Tulloch, R. R., J. Marshall, C. Hill, and K. S. Smith, 2011 : Scales, Growth Rates, and Spectral Fluxes of Baroclinic Instability in the Ocean. Journal of Physical Oceanography, 41 ( 6 ), 1057-1076, doi:10.1175/2011JPO4404.1 Abstract: An experimental, modeling, and theoretical study of the scales, growth rates, and apparitional fluxes of baroclinic instability in the ocean is presented, permitting a discussion of the relation between the local instability scale ; the inaugural baroclinic contortion scale Rdef ; and the equilibrated, note eddy scale. The geography of the large-scale, meridional quasigeostrophic likely vorticity ( QGPV ) gradient is mapped out using a climatological atlas, and attention is drawn to asymmetries between midlatitude eastbound currents and subtropical come back flows, the latter of which has west and eastbound zonal speed shears. A linear stability analysis of the climatology, under the “ local estimate, ” yields the growth rates and scales of the fastest-growing modes. Fastest-growing modes on eastward-flowing currents, such as the Kuroshio and the Antarctic Circumpolar Current, have a scale slightly larger ( by a agent of about 2 ) than Rdef. They are quickly growing ( east foldable in 1-3 weeks ) and deep reach, and they can be characterized by an interaction between interior QGPV gradients, with a zero crossing in the QGPV gradient at depth. In contrast, fastest-growing modes in the subtropical return key flows ( deoxyadenosine monophosphate well as a lot of the coil interiors ) have a scale smaller than Rdef ( by a factor of between 0.5 and 1 ), grow more slowly ( e-folding scale of several weeks ), and owe their being to the interaction of a positive coat QGPV gradient and a negative gradient beneath.These predictions of linear theory under the local approximation are then compared to observed eddy distance scales and apparitional fluxes using altimetric data. It is found that the scale of observe eddies is some 2-3 times larger than the instability scale, indicative of a meek emergence in horizontal scale. No evidence of an inverse shower over decades in scale is found. Outside of a tropical isthmus, the eddy scale varies with latitude along with but slightly less powerfully than Rdef.Finally, precisely the same series of calculations is carried out on fields from an idealize ball-shaped eddy exemplar, enabling study in a more manipulate set. broadly like conclusions are reached, therefore reinforcing inferences made from the data. Keywords: Baroclinic flows, Eddies, Instab, Mesoscale processes ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/abs/10.1175/2011JPO4404.1 Other URLs:
Karatekin, Ö.; de Viron, O.; Lambert, S.; Dehant, V.; Rosenblatt, P.; Van Hoolst, T.; Le Maistre, S. (2011). Atmospheric angular momentum variations of Earth, Mars and Venus at seasonal time scales, Planetary and Space Science, 10 (59), 923-933, 10.1016/j.pss.2010.09.010. Title: Atmospheric angular momentum variations of Earth, Mars and Venus at seasonal clock time scales Type: Journal article Publication: Planetary and Space Science Author(s): Karatekin, Ö. ; de Viron, O. ; Lambert, S. ; Dehant, V. ; Rosenblatt, P. ; Van Hoolst, T. ; Le Maistre, S. Year: 2011 Formatted Citation: Karatekin, Ö., O. de Viron, S. Lambert, V. Dehant, P. Rosenblatt, T. Van Hoolst, and S. Le Maistre, 2011 : atmospheric angular momentum variations of Earth, Mars and Venus at seasonal time scales. Planetary and Space Science, 59 ( 10 ), 923-933, doi:10.1016/j.pss.2010.09.010 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: https://linkinghub.elsevier.com/retrieve/pii/S0032063310002825 Other URLs:
Vinogradova, Nadya T.; Ponte, Rui M.; Tamisiea, Mark E.; Quinn, Katherine J.; Hill, Emma M.; Davis, James L. (2011). Self-attraction and loading effects on ocean mass redistribution at monthly and longer time scales, Journal of Geophysical Research, C8 (116), C08041, 10.1029/2011JC007037. Title: Self-attraction and loading effects on ocean mass redistribution at monthly and longer time scales Type: Journal article Publication: Journal of Geophysical Research Author(s): Vinogradova, Nadya T. ; Ponte, Rui M. ; Tamisiea, Mark E. ; Quinn, Katherine J. ; Hill, Emma M. ; Davis, James L. Year: 2011 Formatted Citation: Vinogradova, N. T., R. M. Ponte, M. E. Tamisiea, K. J. Quinn, E. M. Hill, and J. L. Davis, 2011 : Self-attraction and load effects on ocean mass redistribution at monthly and longer prison term scales. Journal of Geophysical Research, 116 ( C8 ), C08041, doi:10.1029/2011JC007037 Abstract: Self-attraction and cargo ( SAL ) effects caused by changes in mass loads associated with land hydrology, atmospheric imperativeness, and ocean dynamics produce time-varying, inhomogeneous spatial patterns in ocean bottom pressure ( OBP ). such mass redistribution produced by SAL effects is shown to be an authoritative component of OBP variability on scales from months to years and to provide for a better description of the OBP annual cycle observed by GRACE ( Gravity Recovery and Climate Experiment ). The SAL-induced ocean mass variations have magnitudes comparable to the active OBP signals at subannual, annual, and interannual fourth dimension scales in many ocean regions and should not be ignored in studies of ocean mass. annual variations account for the most unevenness in SAL-related mass signals and can be induced by all the loads considered, with hydrology having the largest contribution. At subannual and interannual time scales, impact of hydrology is minimal and variations are by and large related to load changes from ocean dynamics and from changes in atmospheric circulation, depending on ocean region. The results demonstrate that the large-scale SAL effects are not negligible in the analysis of GRACE-derived global observations of OBP. The estimated SAL effects can explain on median 0.2 cm2 ( 16 % ) of the variance in the GRACE annual cycle ( expressed in terms of equivalent water altitude ), exceeding 1 cm2 in both unfold ocean and coastal regions with solid annual SAL signals. Keywords: ECCO Products Used: ECCO-V3URL: http://doi.wiley.com/10.1029/2011JC007037 Other URLs: hypertext transfer protocol : //doi.org/10.1029/2011JC007037
Dutkiewicz, Stephanie (2011). Driving ecosystem and biogeochemical models with optimal state estimates of the ocean circulation, CLIVAR Exchanges, 1 (9). Title: Driving ecosystem and biogeochemical models with optimum submit estimates of the ocean circulation Type: Magazine article Publication: CLIVAR Exchanges Author(s): Dutkiewicz, Stephanie Year: 2011 Formatted Citation: Dutkiewicz, S., 2011 : Driving ecosystem and biogeochemical models with optimum state of matter estimates of the ocean circulation. CLIVAR Exchanges, 9 ( 1 ) hypertext transfer protocol : //usclivar.org/sites/default/files/Variations-V9N1-1.pdf. Abstract: Keywords: ECCO Products Used: ECCO-V2 ; ECCO2URL: https://usclivar.org/sites/default/files/Variations-V9N1-1.pdf Other URLs:
Woloszyn, M.; Mazloff, M.; Ito, T. (2011). Testing an eddy-permitting model of the Southern Ocean carbon cycle against observations, Ocean Modelling, 10.1016/j.ocemod.2010.12.004. Title: Testing an eddy-permitting model of the Southern Ocean carbon paper bicycle against observations Type: Journal article Publication: Ocean Modelling Author(s): Woloszyn, M. ; Mazloff, M. ; Ito, T. Year: 2011 Formatted Citation: Woloszyn, M., M. Mazloff, and T. Ito, 2011 : Testing an eddy-permitting model of the Southern Ocean carbon bicycle against observations. Ocean Modelling, doi:10.1016/j.ocemod.2010.12.004 Abstract: Mesoscale processes play fundamental roles in the dynamics and biogeochemistry of the Southern Ocean. previous modeling studies with coarse resolution models show varying estimates of carbon paper uptake there due to the differences in the representation of physical circulation and mesoscale processes. We develop a new eddy-permitting carbon cycle model of the Southern Ocean with better representation of eddies, jets, and frontal structures. The model employs physical circulation fields from a southern Ocean State Estimate : a model solution that is constrained by a suite of remotely sensed and in situ measurements to ensure realistic hydrographic structures and transmit fields. A dim-witted biogeochemistry exemplar is coupled to the forcible model to simulate the bicycle of alkalinity, carbon paper, and nutrients. In this newspaper we compare fake biogeochemical tracers with observations, and diagnose mechanisms controlling the regional carbon paper motorbike. Model-data comparisons in Drake Passage and CLIVAR repeat sections provide tests for the model performance in capturing note biogeochemical properties. Temporal variability of air-sea CO2flux is primarily controlled by come on pCO2on seasonal timescale, modulated by rapid fluctuations in surface wind focal ratio on a shorter timescale. psychoanalysis of simulate carbon enchant indicates that the zonal base circulation transports carbon paper south, partially compensated by the northbound stationary and transient eddy fluxes. Variability of zonal think of circulation, which is strongly correlated with Ekman transport, dominates the temporal unevenness of meridional carbon tape drive across the Polar Front. © 2010 Elsevier Ltd. Keywords: Air-sea CO2flux, Carbon bicycle, Eddy-permitting modeling, Southern Ocean ECCO Products Used: SOSE URL: Other URLs:
Dwivedi, S.; Haine, T. W.N.; Del Castillo, C. E. (2011). Upper ocean state estimation in the Southern Ocean Gas Exchange Experiment region using the four-dimensional variational technique, Journal of Geophysical Research: Oceans, 3 (116), 1-18, 10.1029/2009JC005615. Title: Upper ocean submit appraisal in the Southern Ocean Gas Exchange Experiment region using the four-dimensional variational proficiency Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Dwivedi, S. ; Haine, T. W.N. ; Del Castillo, C. E. Year: 2011 Formatted Citation: Dwivedi, S., T. W. Haine, and C. E. Del Castillo, 2011 : upper berth ocean submit estimate in the Southern Ocean Gas Exchange Experiment region using the four-dimensional variational technique. J. Geophys. Res. Ocean., 116 ( 3 ), 1-18, doi:10.1029/2009JC005615 Abstract: Keywords: Southern Ocean, doi:10.1029/2009JC005615, hypertext transfer protocol : //dx.doi.org/10.1029/2009JC005615, ocean data assimilation ECCO Products Used: ECCO-KFS URL: Other URLs:
Ubelmann, Clement; Fu, Lee-Lueng (2011). Vorticity Structures in the Tropical Pacific from a Numerical Simulation, Journal of Physical Oceanography, 8 (41), 1455-1464, 10.1175/2011JPO4507.1. Title: Vorticity Structures in the Tropical Pacific from a numeral simulation Type: Journal article Publication: Journal of Physical Oceanography Author(s): Ubelmann, Clement ; Fu, Lee-Lueng Year: 2011 Formatted Citation: Ubelmann, C., and L. Fu, 2011 : Vorticity Structures in the Tropical Pacific from a numerical Simulation. Journal of Physical Oceanography, 41 ( 8 ), 1455-1464, doi:10.1175/2011JPO4507.1 Abstract: The minor variability of the tropical Pacific is studied with the simulations from a numeral model in terms of vorticity structures. A Lagrangian method based on the Okubo-Weiss parameter is used to identify the structures and track their chief characteristics. Between 8°S and 8°N, the structure characteristics are spatially inhomogeneous compared to higher latitudes. They can be grouped into three categories : anticyclonic and cyclonic structures off the equator and the equatorial structures between 2°S and 2°N. They all have a strong annual cycle with maximum presence from September to March, except during strong El Niño years, when the count of structures becomes very abject. Off the equator from 2° to 8°, the anticyclonic structures dominate, but with drastically different characteristics union and south of the equator. In the north, big nonlinear vortices develop ( known as the tropical instability vortices ) in phase with the 30-35-day cycle related to an fluid first-meridional-mode Rossby waves. In the south, by and large fragmental analogue structures are present, with lower propagation speeds. The equatorial structures are by and large counterclockwise. The larger ones tend to be linear and are intelligibly associated with Yanai waves. The large majority of the cyclonic structures off the equator are besides quite linear and smaller and less numerous than the anticyclonic structures. however, some of them are nonlinear with vorticity values higher than 2 times the Coriolis parameter. Keywords: Num, Ocean model, Pacific Ocean, Tropics, Vorticity ECCO Products Used: ECCO2 ; LL_hiresURL: http://journals.ametsoc.org/doi/abs/10.1175/2011JPO4507.1 Other URLs:
Heimbach, Patrick; Wunsch, Carl; Ponte, Rui M; Forget, Gael; Hill, Chris; Utke, Jean (2011). Timescales and regions of the sensitivity of Atlantic meridional volume and heat transport: Toward observing system design, Deep Sea Research Part II: Topical Studies in Oceanography, 17-18 (58), 1858-1879, 10.1016/j.dsr2.2010.10.065. Title: Timescales and regions of the sensitivity of Atlantic meridional volume and heating system transportation : Toward observing system design Type: Journal article Publication: Deep Sea Research Part II : topical Studies in oceanography Author(s): Heimbach, Patrick ; Wunsch, Carl ; Ponte, Rui M ; Forget, Gael ; Hill, Chris ; Utke, Jean Year: 2011 Formatted Citation: Heimbach, P., C. Wunsch, R. M. Ponte, G. Forget, C. Hill, and J. Utke, 2011 : Timescales and regions of the sensitivity of Atlantic meridional volume and heat transport : Toward observing system design. Deep Sea Research Part II : topical Studies in Oceanography, 58 ( 17-18 ), 1858-1879, doi:10.1016/j.dsr2.2010.10.065 Abstract: A double ( adjoint ) model is used to explore elements of the oceanic state influencing the meridional book and heat transports ( MVT and MHT ) in the sub-tropical North Atlantic indeed as to understand their variability and to provide the elements of utilitarian experimental plan plan. Focus is on the effect of temperature ( and brininess ) perturbations. On abruptly timescales ( months ), as expected, the greatest sensitivities are to local disturbances, but as the timescales extend back to a ten and longer, the region of determine expands to occupy much of the Atlantic washbasin and significant areas of the ball-shaped ocean, although the charm of any particular detail or small sphere tends to be quite weak. The propagation of information in the double solution is a clear materialization of oceanic teleconnections. It takes seat through identifiable “ double ” Kelvin, Rossby, and continental shelf-waves with an explainable physics, in especial in terms of double expressions of barotropic and baroclinic adjustment processes. Among the celebrated features are the relatively fast timescales of influence ( albeit fallible in amplitude ) between 26°N and the tropical Pacific and indian Ocean, the absence of authority of the sub-polar North Atlantic, significant connections to the Agulhas escape area in the southeast Atlantic on timescales of 5-10 years, and the check sensitivity propagation of Doppler-shifted Rossby waves in the southern Ocean on timescales of a ten and beyond. Regional, vitamin a well as time-dependent, differences between MVT and MHT sensitivities highlight the lack of a childlike commensurateness between their unevenness. Some implications for observing systems for the purpose of climate science are discussed. Keywords: Adjoint sensitivities, Decadal variability, Dual submit space, Meridional overturning circulation, Observing system design, Oceanic teleconnections, Poleward heat ecstasy ECCO Products Used: ECCO-V3URL: http://www.sciencedirect.com/science/article/pii/S0967064511000488 Other URLs:
Quinn, K J; Ponte, R M (2011). Estimating high frequency ocean bottom pressure variability, Geophysical Research Letters (38), 10.1029/2010gl046537. Title: Estimating high frequency ocean bottom atmospheric pressure unevenness Type: Journal article Publication: Geophysical Research Letters Author(s): Quinn, K J ; Ponte, R M Year: 2011 Formatted Citation: Quinn, K. J., and R. M. Ponte, 2011 : Estimating high frequency ocean bottomland pressure variability. Geophys. Res. Lett., 38, doi:10.1029/2010gl046537 Abstract: Knowledge of unevenness in ocean bottom imperativeness ( p ( b ) ) at periods < 60 days is essential for minimizing aliasing in satellite gravity missions. We assess how well we know such rapid, non-tidal p ( boron ) signals by analyzing in-situ bottomland pressure registrar ( BPR ) datum and available ball-shaped estimates from two very different model approaches. Estimated phosphorus ( boron ) variance is generally lower than that measured by the BPRs, implying the presence of correlative model errors. Deriving uncertainties from differencing the model estimates can frankincense sternly undervalue the aliasing errors. Removing estimated series from BPR data tends to reduce the discrepancy by up to alike to 5 centimeter ( 2 ) but residual variability is silent alike to 5-20 curium ( 2 ) and not negligible relative to expected discrepancy in climate phosphorus ( b ) signals. The residual phosphorus ( b-complex vitamin ) unevenness can be correlated over hundreds of kilometers. Results indicate the motivation to improve estimates of rapid phosphorus ( b ) unevenness in order to minimize aliasing noise in stream and future satellite-based phosphorus ( b-complex vitamin ) observations. citation : Quinn, K. J., and R. M. Ponte ( 2011 ), Estimating high frequency ocean bottom press variability, Geophys. Res. Lett., 38, L08611, doi:10.1029/2010GL046537. Keywords: grace, graveness recovery, mass, tides ECCO Products Used: URL: Other URLs:
Nastula, Jolanta; Paśnicka, Małgorzata; Kołaczek, Barbara (2011). Comparison of the geophysical excitations of polar motion from the period: 1980.0-2009.0, Acta Geophysica, 3 (59), 561-577, 10.2478/s11600-011-0008-2. Title: Comparison of the geophysical excitations of diametric movement from the time period : 1980.0-2009.0 Type: Journal article Publication: Acta Geophysica Author(s): Nastula, Jolanta ; Paśnicka, Małgorzata ; Kołaczek, Barbara Year: 2011 Formatted Citation: Nastula, J., M. Paśnicka, and B. Kołaczek, 2011 : comparison of the geophysical excitations of polar motion from the period : 1980.0-2009.0. Acta Geophysica, 59 ( 3 ), 561-577, doi:10.2478/s11600-011-0008-2 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: http://link.springer.com/10.2478/s11600-011-0008-2 Other URLs:
Jin, S G; Zhang, L J; Tapley, B D (2011). The understanding of length-of-day variations from satellite gravity and laser ranging measurements, Geophysical Journal International, 2 (184), 651-660, 10.1111/j.1365-246X.2010.04869.x. Title: The understand of length-of-day variations from satellite gravity and laser roll measurements Type: Journal article Publication: Geophysical Journal International Author(s): Jin, S G ; Zhang, L J ; Tapley, B D Year: 2011 Formatted Citation: Jin, S. G., L. J. Zhang, and B. D. Tapley, 2011 : The understand of length-of-day variations from satellite graveness and laser rate measurements. Geophysical Journal International, 184 ( 2 ), 651-660, doi:10.1111/j.1365-246X.2010.04869.x Abstract: P > The switch in the rate of the Earth ‘s rotation, length-of-day ( LOD ), is chiefly the result of movement and redistribution of mass in the Earth ‘s atmosphere, oceans and hydrosphere. numerous studies on the LOD excitations have been made from climatological/hydrological assimilation systems and models of the general circulation of the ocean. however, quantitative judgment and understand of the contributions to the LOD remain unclear due chiefly to the miss of direct global observations. In this paper, the total Earth ‘s airfoil fluids batch excitations to the LOD at seasonal worker and intraseasonal timescales are investigated from the Jet Propulsion Laboratory Estimating Circulation and Climate of the Ocean ( ECCO ) mannequin, the National Centers for Environmental Prediction/National Center for Atmospheric Research ( NCEP/NCAR ) reanalysis and the European Center for Medium-Range Weather Forecasts ( ECMWF ) Re-analysis ( ERA ) -Interim, GRACE-derived coat fluids mass and the spherical harmonics coefficient C-20 from the satellite laser range ( SLR ) vitamin a well as combined GRACE+SLR solutions, respectively. Results appearance that the GRACE and the combine GRACE and SLR solutions better explain the geodetic residual LOD excitations at annual and semi-annual timescales. For less than 1 year timescales, GRACE-derived mass is worse to explain the geodetic residuals, whereas SLR agrees better with the geodetic residuals. however, the compound GRACE and SLR results are much improved in explaining the geodetic remainder excitations at intraseasonal scales. Keywords: Earth, Satellite geodesy, Time series analysis, Time varying gravity, atmospheric angular-momentum, earths, field, fluctuations, lageos, model, ocean tides, arctic gesticulate, rotation, rotation variations, seasonal-variations, variability ECCO Products Used: ECCO-KFS URL: Other URLs:
Stammer, D.; Agarwal, N.; Herrmann, P.; Köhl, A.; Mechoso, C. R. (2011). Response of a Coupled Ocean-Atmosphere Model to Greenland Ice Melting, Surveys in Geophysics, 4-5 (32), 621-642, 10.1007/s10712-011-9142-2. Title: Response of a pair Ocean-Atmosphere Model to Greenland Ice Melting Type: Journal article Publication: Surveys in Geophysics Author(s): Stammer, D. ; Agarwal, N. ; Herrmann, P. ; Köhl, A. ; Mechoso, C. R. Year: 2011 Formatted Citation: Stammer, D., N. Agarwal, P. Herrmann, A. Köhl, and C. R. Mechoso, 2011 : response of a coupled Ocean-Atmosphere Model to Greenland Ice Melting. Surveys in Geophysics, 32 ( 4-5 ), 621-642, doi:10.1007/s10712-011-9142-2 Abstract: We investigate the transient answer of the global coupled ocean-atmosphere system to enhanced fresh water forcing representative of liquescent of the Greenland frosting sheets. A 50-year long simulation by a coupled atmosphere-ocean general circulation exemplary ( CGCM ) is compared with another of the like distance in which Greenland thaw is prescribed. To highlight the importance of coupled atmosphere-ocean processes, the CGCM results are compared with those of two other experiments carried out with the oceanic general circulation model ( OGCM ). In one of these OGCM experiments, the appointed surface fluxes of heating system, momentum and fresh water correspond to the unflurried simulation by the CGCM ; in the other experiment, Greenland thaw is added to the fresh water flux. The responses by the CGCM and OGCM to the Greenland dissolve have similar patterns in the Atlantic, albeit the former having five times larger amplitudes in sea surface acme anomalies. The CGCM shows besides stronger unevenness in all state variables in all ocean basins because the impact of Greenland melt is cursorily communicated to all ocean basins via atmospheric bridges. We conclude that the reply of the global climate to Greenland ice mellow is highly dependent on match atmosphere-ocean processes. These run to reduced latent heat flow into the air and an consort increase in net fresh water magnetic field into the ocean, specially in the subpolar North Atlantic. The combined result is a stronger reaction of the match system to Greenland ice sheet melt. Keywords: Coupled atmosphere-ocean experiments, Greenland ice sail liquescent, Sealevel upgrade ECCO Products Used: ECCO-KFS URL: Other URLs:
Halkides, D. J.; Lucas, Lisanne E.; Waliser, Duane E.; Lee, Tong; Murtugudde, Raghu (2011). Mechanisms controlling mixed-layer temperature variability in the eastern tropical Pacific on the intraseasonal timescale, Geophysical Research Letters, 17 (38), 10.1029/2011GL048545. Title: Mechanisms controlling mixed-layer temperature unevenness in the eastern tropical Pacific on the intraseasonal timescale Type: Journal article Publication: Geophysical Research Letters Author(s): Halkides, D. J. ; Lucas, Lisanne E. ; Waliser, Duane E. ; Lee, Tong ; Murtugudde, Raghu Year: 2011 Formatted Citation: Halkides, D. J., L. E. Lucas, D. E. Waliser, T. Lee, and R. Murtugudde, 2011 : Mechanisms controlling mixed-layer temperature unevenness in the easterly tropical Pacific on the intraseasonal timescale. Geophys. Res. Lett., 38 ( 17 ), doi:10.1029/2011GL048545 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: http://doi.wiley.com/10.1029/2011GL048545 Other URLs:
Seoane, L.; Nastula, J.; Bizouard, C.; Gambis, D. (2011). Hydrological excitation of polar motion derived from GRACE gravity field solutions, International Journal of Geophysics (2011), 10.1155/2011/174396. Title: Hydrological excitation of polar apparent motion derived from GRACE graveness sphere solutions Type: Journal article Publication: International Journal of Geophysics Author(s): Seoane, L. ; Nastula, J. ; Bizouard, C. ; Gambis, D. Year: 2011 Formatted Citation: Seoane, L., J. Nastula, C. Bizouard, and D. Gambis, 2011 : Hydrological excitation of polar motion derived from GRACE gravity field solutions. International Journal of Geophysics, 2011, doi:10.1155/2011/174396 Abstract: The influence of the continental water storage on the diametric gesticulate is not well known. unlike models have been developed to evaluate these effects and compared to geodetic observations. however, previous studies have shown big discrepancies chiefly attributed to the miss of ball-shaped measurements of related hydrological parameters. now, from the observations of the GRACE mission, we can estimate the polar motion excitation due to the global hydrology. Data process of GRACE data is carried out by several centers of analysis, we focus on the modern solution computed by the Groupe de Recherche de Géodésie Spatiale. At annual scales, excitations derived from GRACE data are in better agreement with geodetic observations than models estimates. The main contribution to the hydrological excitement comes from the monsoon climates regions where GRACE and models estimates are in a very good agreement. still, the impression of the north high latitudes regions, where the principal areas of bamboozle screen are found, can not be neglected. At these regions, GRACE and models estimated contributions to pivotal apparent motion excitations show significant discrepancies. finally, GRACE-based excitations reveal the possible determine of body of water storage variations in exciting polar motion around the frequency of 3 cycles per year. Keywords: ECCO Products Used: ECCO-KFS URL: Other URLs:
Williams, S D P; Penna, N T (2011). Non-tidal ocean loading effects on geodetic GPS heights, Geophysical Research Letters (38), 10.1029/2011gl046940. Title: Non-tidal ocean loading effects on geodetic GPS heights Type: Journal article Publication: Geophysical Research Letters Author(s): Williams, S D P ; Penna, N T Year: 2011 Formatted Citation: Williams, S. D. P., and N. T. Penna, 2011 : Non-tidal ocean loading effects on geodetic GPS heights. Geophys. Res. Lett., 38, doi:10.1029/2011gl046940 Abstract: GPS observations used in geophysical studies are not normally corrected for non-tidal ocean cargo ( NTOL ) displacement. here we investigate NTOL effects on 3-4 class GPS height time series from 17 sites around the southern North Sea, and compute the NTOL displacement according to two ocean models ; the global ECCO model and a high resolution regional model, POLSSM, which covers the northwest european continental shelf. To assess the susceptibility of GPS stature estimates to NTOL, reprocessed GIPSY PPP daily solutions are corrected for the result supplanting, together with atmospheric press load ( ATML ). We find that the displacements ascribable to NTOL are comparable in size to ATML and the unite discipline reduces the discrepancy by 12-22 mm2 ( 20-30 % reduction in RMS ). We find that POLSSM outperforms ECCO, with around an 11 % greater variance decrease, and hence high gear resolution models are recommended to correct GPS heights for NTOL. quotation : Williams, S. D. P., and N. T. Penna ( 2011 ), Non-tidal ocean loading effects on geodetic GPS heights, Geophys. Res. Lett., 38, L09314, department of the interior : 10.1029/2011GL046940. Keywords: contortion, worldly concern, gravity, multitude, mannequin, low-lying, open, tides ECCO Products Used: ECCO-KFS URL: Other URLs:
Gao, S; Qu, T D; Fukumori, I (2011). Effects of mixing on the subduction of South Pacific waters identified by a simulated passive tracer and its adjoint, Dynamics of Atmospheres and Oceans, 1-2 (51), 45-54, 10.1016/J.Dynatmoce.2010.10.002. Title: Effects of mixing on the subduction of South Pacific waters identified by a fake passive tracer and its adjoint Type: Journal article Publication: Dynamics of Atmospheres and Oceans Author(s): Gao, S ; Qu, T D ; Fukumori, I Year: 2011 Formatted Citation: Gao, S., T. D. Qu, and I. Fukumori, 2011 : Effects of mixing on the subduction of South Pacific waters identified by a imitate passive voice tracer and its adjoint. Dynamics of Atmospheres and Oceans, 51 ( 1-2 ), 45-54, doi:10.1016/J.Dynatmoce.2010.10.002 Abstract: Effects of mixing on body of water bulk subduction are analyzed in the South Pacific Ocean. Model simulations using a passive tracer and its adjoint are employed in conjunction with a particle tracking method to distinguish effects of mixing from those of advection. The results show that mixing processes can contribute to angstrom a lot as 20 % of the overall subduction rate in the South Pacific. Of this mixing contribution, approximately 30 % can be attributed to meso-scale eddies, including their associated bolus conveyance, while the major function ( 70 % ) is due to other diabatic processes. The affect of mixing reaches its maximal near the Sub-Antarctic Front, accounting for closely 30 % of the total subduction pace. consequently, estimates based on tracing particles or on advection alone may significantly underestimate the subduction rate in the South Pacific Ocean. ( C ) 2010 Elsevier B.V. All rights reserved. Keywords: circulation, climatology, gcm, mixed-layer, blend, mode waters, north-pacific, ocean, origin, pathway, south pacific, subduction, thermocline, tracer ECCO Products Used: ECCO-KFS ; adjoint URL: Other URLs:
Prowe, Friederike (2011). Effects of the feeding functional response on phytoplankton diversity and ecosystem functioning in ecosystem models. Title: Effects of the feeding functional reception on phytoplankton diversity and ecosystem operation in ecosystem models Type: dissertation Publication: Author(s): Prowe, Friederike Year: 2011 Formatted Citation: Prowe, F., 2011 : Effects of the feeding functional reaction on phytoplankton diverseness and ecosystem serve in ecosystem models., 188 pp. Abstract: The thesis presents simulations of phytoplankton diversity in the global ocean performed with a pair ocean-ecosystem mannequin. It demonstrates the effect of different zooplankton feeding formulations on phytoplankton diversity and its consequences for ecosystem productivity. In summation, a more sophisticate feed conceptualization is presented. Keywords: ECCO Products Used: ECCO-V2URL: http://oceanrep.geomar.de/13927/ Other URLs: hypertext transfer protocol : //oceanrep.geomar.de/id/eprint/13927
Firing, Yvonne L; Chereskin, Teresa K; Mazloff, Matthew R (2011). Vertical structure and transport of the Antarctic Circumpolar Current in Drake Passage from direct velocity observations, Journal of Geophysical Research: Oceans, C8 (116), n/a-n/a, 10.1029/2011JC006999. Title: Vertical structure and tape drive of the Antarctic Circumpolar Current in Drake passage from address speed observations Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Firing, Yvonne L ; Chereskin, Teresa K ; Mazloff, Matthew R Year: 2011 Formatted Citation: Firing, Y. L., T. K. Chereskin, and M. R. Mazloff, 2011 : vertical structure and transmit of the Antarctic Circumpolar Current in Drake enactment from address speed observations. J. Geophys. Res. Ocean., 116 ( C8 ), n/a-n/a, doi:10.1029/2011JC006999 Abstract: The structure of the Antarctic Circumpolar Current ( ACC ) in Drake Passage is examined using 4.5 years of shipboard acoustic Doppler current profiler ( ADCP ) speed data. The extended 1000 megabyte depth rate available from the 38 kilohertz ADCP allows us to investigate the vertical structure of the current. The average observed current varies lento with depth, while eddy energizing energy and shear variability parade firm depth dependence. objectively map streamlines are self-similar with depth, coherent with an equivalent barotropic structure. vertical wavenumber spectrum of respect currents and current shear uncover intercede wavenumber anisotropy and rotation indicative mood of down energy propagation above 500 m and up propagation below 500 m. The mean observed transportation of the ACC in the amphetamine 1000 megabyte is estimated at 95 { \textpm } 2 Sv or 71 % of the canonic full transportation of 134 Sv. Mean current speeds in the ACC jets remain quite strong at 1000 thousand, 10-20 curium s-1. erect structure functions to describe the current and interpolate below 1000 thousand are explored with the care of full-depth profiles from lowered ADCP and a 3 year mean from the southern Ocean State Estimate ( SOSE ). A number of functions, including an exponential, are about equally well fits to the observations, explaining > 75 % of the discrepancy. Fits to an exponentially decaying function can be extrapolated to give an estimate of 154 { \textpm } 38 Sv for the full-depth transport. Keywords: Arctic and Antarctic oceanography, Descriptive and regional oceanography, Drake Passage, Eddies and mesoscale processes, Fronts and jets, acoustic Doppler current profiler, antarctic circumpolar current, currents ECCO Products Used: SOSEURL: http://dx.doi.org/10.1029/2011JC006999 Other URLs:
Wu, X; Collilieux, X; Altamimi, Z; Vermeersen, B L A; Gross, R S; Fukumori, I (2011). Accuracy of the International Terrestrial Reference Frame origin and Earth expansion, Geophysical Research Letters (38), L13304, 10.1029/2011gl047450. Title: Accuracy of the International Terrestrial Reference Frame lineage and Earth expansion Type: Journal article Publication: Geophysical Research Letters Author(s): Wu, X ; Collilieux, X ; Altamimi, Z ; Vermeersen, B L A ; Gross, R S ; Fukumori, I Year: 2011 Formatted Citation: Wu, X., X. Collilieux, Z. Altamimi, B. L. A. Vermeersen, R. S. Gross, and I. Fukumori, 2011 : accuracy of the International Terrestrial Reference Frame origin and Earth expansion. Geophys. Res. Lett., 38, L13304, doi:10.1029/2011gl047450 Abstract: The International Terrestrial Reference Frame ( ITRF ) is a fundamental datum for high-precision eye socket traverse, seafaring, and global change monitoring. accurately realizing and maintaining ITRF origin at the mean Earth arrangement center of mass ( CM ) is critical to surface and spacecraft based geodetic measurements including those of sea level rise and its sources. Although ITRF combines data from satellite laser rate ( SLR ), identical long Baseline Interferometry ( VLBI ), Global Positioning System ( GPS ), and Doppler Orbitography and Radiopositioning Integrated by Satellite ( DORIS ), its lineage is presently realized by the individual technique of SLR. consequently, it is unmanageable to independently evaluate the lineage accuracy. besides, whether the solid earth is expanding or shrink has attracted persistent attention. The expansion rate, if any, has not been accurately determined before, due to insufficient data coverage on the Earth ‘s coat and the presence of other geophysical processes. here, we use multiple precise geodetic data sets and a coincident global appraisal platform to determine that the ITRF2008 lineage is coherent with the beggarly CM at the level of 0.5 mm year ( -1 ), and the intend radius of the Earth is not changing to within 1 sigma measurement uncertainty of 0.2 mm year ( -1 ). citation : Wu, X., X. Collilieux, Z. Altamimi, B. L. A. Vermeersen, R. S. Gross, and I. Fukumori ( 2011 ), Accuracy of the International Terrestrial Reference Frame lineage and Earth expansion, Geophys. Res. Lett., 38, L13304, department of the interior : 10.1029/2011GL047450. Keywords: contortion, arctic isostatic-adjustment, grace, model, come on ECCO Products Used: ECCO-KFS URL: Other URLs:
Xu, Yongsheng; Fu, Lee-Lueng; Tulloch, Ross R. (2011). The Global Characteristics of the Wavenumber Spectrum of Ocean Surface Wind, Journal of Physical Oceanography, 8 (41), 1576-1582, 10.1175/JPO-D-11-059.1. Title: The Global Characteristics of the Wavenumber Spectrum of Ocean Surface Wind Type: Journal article Publication: Journal of Physical Oceanography Author(s): Xu, Yongsheng ; Fu, Lee-Lueng ; Tulloch, Ross R. Year: 2011 Formatted Citation: Xu, Y., L. Fu, and R. R. Tulloch, 2011 : The Global Characteristics of the Wavenumber Spectrum of Ocean Surface Wind. Journal of Physical Oceanography, 41 ( 8 ), 1576-1582, doi:10.1175/JPO-D-11-059.1 Abstract: The wavenumber spectrum of scent kinetic energy over the ocean from Quick Scatterometer ( QuikSCAT ) observations have revealed complex spatial variability in the wavelength range of 1000-3000 km, with spectral slopes varying from −1.6 to −2.9. here the authors performed a apparitional psychoanalysis of QuikSCAT winds over the global ocean and found that ( iodine ) the apparitional slopes become steeper toward the Poles in the Pacific and in the South Atlantic, and the slopes exhibit minimal longitudinal addiction in the South Pacific ; ( two ) the steepest slopes are in the tropical indian Ocean and the shallowest slopes are in the tropical Pacific and Atlantic ; and ( three ) the spectrum are steeper in winter than summer in most regions of the midlatitude Northern Hemisphere. The new findings reported in the paper provide a test bed for theoretical studies and atmospheric cosmopolitan circulation models. Keywords: ECCO Products Used: URL: http://journals.ametsoc.org/doi/abs/10.1175/JPO-D-11-059.1 Other URLs:
Ito, T; Hamme, R C; Emerson, S (2011). Temporal and spatial variability of noble gas tracers in the North Pacific, Journal of Geophysical Research-Oceans (116), 10.1029/2010jc006828. Title: Temporal and spatial variability of baronial gas tracers in the North Pacific Type: Journal article Publication: Journal of Geophysical Research-Oceans Author(s): Ito, T ; Hamme, R C ; Emerson, S Year: 2011 Formatted Citation: Ito, T., R. C. Hamme, and S. Emerson, 2011 : temporal and spatial variability of noble natural gas tracers in the North Pacific. J. Geophys. Res. Ocean., 116, doi:10.1029/2010jc006828 Abstract: We develop a numerical model of dissolved argon and neon in the global ocean as a tool to investigate the physical processes controlling their impregnation states in the upper ocean of the North Pacific. The distribution of argon and neon is simulated using the time-varying, cubic circulation fields determined by the Estimating the Circulation and Climate of the Oceans ( ECCO ) stick out from 1992 to 2008. The model is in overall agreement with restrict experimental data from the subpolar and subtropical North Pacific using a relatively first gear vertical diffusivity. temporal unevenness in argon saturation is enhanced in the surface ocean, dominated by diffusing gas exchange coupled to air-sea heat fluxes. This unevenness in coat argon saturation is importantly correlated to the Southern Oscillation Index ( El Nino ) in the tropics and to the North Pacific Index in midlatitudes. Using sensitivity experiments, we find that the mean state of matter of argon impregnation in the vent thermocline is characterized by a reciprocal recompense between mixing-induced supersaturation and sea level imperativeness and heat-flux-induced undersaturation. Neon distributions exhibit a stronger determine from bubble-mediated gasoline fluxes that is partially compensated by the effect of ocean charge pressure variation. Our solution demonstrates the significant character of air-sea interaction and ocean mix in controlling the think of submit of the dissolved lord gases and highlights the importance of diffusing accelerator change coupled to air-sea heat fluxes in controlling temporal variability, with implications for using noble gas measurements to derive estimates of diapycnal diffusivity in the subtropical thermocline. Keywords: argon, change, helium, exemplar, neon, nitrogen, ocean, ocean, solvability, water ECCO Products Used: ECCO-V3 URL: Other URLs:
van Sebille, Erik; Baringer, Molly O.; Johns, William E.; Meinen, Christopher S.; Beal, Lisa M.; de Jong, M. Femke; van Aken, Hendrik M. (2011). Propagation pathways of classical Labrador Sea water from its source region to 26°N, Journal of Geophysical Research, C12 (116), C12027, 10.1029/2011JC007171. Title: Propagation pathways of classical Labrador Sea water from its beginning region to 26°N Type: Journal article Publication: Journal of Geophysical Research Author(s): van Sebille, Erik ; Baringer, Molly O. ; Johns, William E. ; Meinen, Christopher S. ; Beal, Lisa M. ; de Jong, M. Femke ; vanguard Aken, Hendrik M. Year: 2011 Formatted Citation: van Sebille, E., M. O. Baringer, W. E. Johns, C. S. Meinen, L. M. Beal, M. F. de Jong, and H. M. vanguard Aken, 2011 : Propagation pathways of classical Labrador Sea water from its source region to 26°N. Journal of Geophysical Research, 116 ( C12 ), C12027, doi:10.1029/2011JC007171 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1029/2011JC007171 Other URLs:
Saito, Mak A; Bertrand, Erin M; Dutkiewicz, Stephanie; Bulygin, Vladimir V; Moran, Dawn M; Monteiro, Fanny M; Follows, Michael J.; Valois, Frederica W; Waterbury, John B (2011). Iron conservation by reduction of metalloenzyme inventories in the marine diazotroph Crocosphaera watsonii, Proceedings of the National Academy of Sciences, 6 (108), 2184-2189, 10.1073/pnas.1006943108. Title: Iron conservation by reduction of metalloenzyme inventories in the marine diazotroph Crocosphaera watsonii Type: Journal article Publication: Proceedings of the National Academy of Sciences Author(s): Saito, Mak A ; Bertrand, Erin M ; Dutkiewicz, Stephanie ; Bulygin, Vladimir V ; Moran, Dawn M ; Monteiro, Fanny M ; Follows, Michael J. ; Valois, Frederica W ; Waterbury, John B Year: 2011 Formatted Citation: Saito, M. A. and Coauthors, 2011 : Iron conservation by reduction of metalloenzyme inventories in the marine diazotroph Crocosphaera watsonii. Proceedings of the National Academy of Sciences, 108 ( 6 ), 2184-2189, doi:10.1073/pnas.1006943108 Abstract: The marine nitrogen fixing microorganisms ( diazotrophs ) are a major beginning of nitrogen to open ocean ecosystems and are predicted to be limited by iron in most marine environments. here we use ball-shaped and target proteomic analyses on a samara unicellular marine diazotroph Crocosphaera watsonii to reveal boastfully scale diel changes in its proteome, including hearty variations in concentrations of iron metalloproteins involved in nitrogen fixation and photosynthesis, a well as nocturnal flavodoxin production. The casual deduction and degradation of enzymes in coordination with their use results in a turn down cellular metalloenzyme stock that requires ∼40 % less iron than if these enzymes were maintained throughout the diel cycle. This strategy is energetically expensive, but appears to serve as an significant adaptation for confronting the iron scarcity of the open oceans. A ball-shaped numeral exemplary of ocean circulation, biogeochemistry and ecosystems suggests that Crocosphaera ‘s ability to reduce its iron-metalloenzyme stock provides two advantages : It allows Crocosphaera to inhabit regions lower in iron and allows the same iron issue to support higher Crocosphaera biomass and nitrogen arrested development than if they did not have this reduced iron requirement. Keywords: ECCO Products Used: ECCO-V2URL: http://www.pnas.org/content/108/6/2184.abstract Other URLs: hypertext transfer protocol : //www.pnas.org/cgi/doi/10.1073/pnas.1006943108
Holloway, Greg; Nguyen, An; Wang, Zeliang (2011). Oceans and ocean models as seen by current meters, Journal of Geophysical Research: Oceans, C8 (116), 10.1029/2011JC007044. Title: Oceans and ocean models as seen by current meters Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Holloway, Greg ; Nguyen, An ; Wang, Zeliang Year: 2011 Formatted Citation: Holloway, G., A. Nguyen, and Z. Wang, 2011 : Oceans and ocean models as seen by current meters. J. Geophys. Res. Ocean., 116 ( C8 ), doi:10.1029/2011JC007044 Abstract: From a collection at 18,588 current meter locations spanning 12,825 observation years, we examine ocean circulation in terms of topostrophy. We affirm previous indications of powerfully incontrovertible topostrophy toward higher latitudes, and we consider variation with depth. We explore habit of the current meter data typeset for evaluating models skills. This is illustrated from two models applied to Arctic Ocean circulation : ( 1 ) examining the influence of consecutive grid refinement in a high-resolution eddy-active model and ( 2 ) assessing skill in a coarse-resolution noneddying model for which effects of unsolved eddies are parameterized. We see that finer-grid eddy-active models achieve higher topostrophy and improved skill. We find that a coarse-grid noneddying model can be improved by parameterization. Keywords: 4207 Arctic and Antarctic oceanography, 4255 Numerical mold, 4262 Ocean observing systems, Arctic, model, observing ECCO Products Used: ECCO2 ; SeaIceURL: http://dx.doi.org/10.1029/2011JC007044 Other URLs:
Dorman, Jeffrey G.; Powell, Thomas M.; Sydeman, William J.; Bograd, Steven J. (2011). Advection and starvation cause krill (Euphausia pacifica) decreases in 2005 Northern California coastal populations: Implications from a model study, Geophysical Research Letters, 4 (38), 10.1029/2010GL046245. Title: Advection and starvation campaign krill ( Euphausia pacifica ) decreases in 2005 Northern California coastal populations : Implications from a model cogitation Type: Journal article Publication: Geophysical Research Letters Author(s): Dorman, Jeffrey G. ; Powell, Thomas M. ; Sydeman, William J. ; Bograd, Steven J. Year: 2011 Formatted Citation: Dorman, J. G., T. M. Powell, W. J. Sydeman, and S. J. Bograd, 2011 : advection and starvation campaign krill ( Euphausia pacifica ) decreases in 2005 Northern California coastal populations : Implications from a model cogitation. Geophys. Res. Lett., 38 ( 4 ), doi:10.1029/2010GL046245 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1029/2010GL046245 Other URLs:
Abernathey, Ryan; Marshall, John; Ferreira, David (2011). The Dependence of Southern Ocean Meridional Overturning on Wind Stress, Journal of Physical Oceanography, 12 (41), 2261-2278, 10.1175/JPO-D-11-023.1. Title: The Dependence of Southern Ocean Meridional Overturning on Wind Stress Type: Journal article Publication: Journal of Physical Oceanography Author(s): Abernathey, Ryan ; Marshall, John ; Ferreira, David Year: 2011 Formatted Citation: Abernathey, R., J. Marshall, and D. Ferreira, 2011 : The Dependence of Southern Ocean Meridional Overturning on Wind Stress. Journal of Physical Oceanography, 41 ( 12 ), 2261-2278, doi:10.1175/JPO-D-11-023.1 Abstract: An eddy-resolving numerical model of a zonal menstruation, entail to resemble the Antarctic Circumpolar Current, is described and analyzed using the framework of J. Marshall and T. Radko. In addition to wind and buoyancy forcing at the surface, the model contains a sponge level at the northern limit that permits a residual meridional overturning circulation ( MOC ) to exist at depth. The persuasiveness of the remainder MOC is diagnosed for different strengths of surface wind tension. It is found that the eddy circulation largely compensates for the changes in Ekman circulation. The extent of the recompense and frankincense the sensitivity of the MOC to the winds depend on the coat boundary circumstance. A fixed-heat-flux airfoil boundary sternly limits the ability of the MOC to change. An synergistic estrus flux leads to greater sensitivity. To explain the MOC sensitivity to the wind force under the synergistic inflame flux, transformed Eulerian-mean hypothesis is applied, in which the eddy diffusivity plays a cardinal function in determining the eddy answer. A scale theory for the eddy diffusivity, based on the mechanical energy poise, is developed and tested ; the average order of magnitude of the diffusivity is found to be proportional to the square root of the wind stress. The MOC sensitivity to the winds based on this scale is compared with the truthful sensitivity diagnosed from the experiments. Keywords: Baroclinic flows, Dynamics, Eddies, Ma, Southern Ocean ECCO Products Used: URL: http://journals.ametsoc.org/doi/abs/10.1175/JPO-D-11-023.1 Other URLs:
Spreen, Gunnar; Kwok, Ron; Menemenlis, Dimitris (2011). Trends in Arctic sea ice drift and role of wind forcing: 1992-2009, Geophysical Research Letters, 19 (38), 10.1029/2011GL048970. Title: Trends in Arctic sea methamphetamine drift and role of wind pull : 1992-2009 Type: Journal article Publication: Geophysical Research Letters Author(s): Spreen, Gunnar ; Kwok, Ron ; Menemenlis, Dimitris Year: 2011 Formatted Citation: Spreen, G., R. Kwok, and D. Menemenlis, 2011 : Trends in Arctic sea internal-combustion engine drift and function of weave push : 1992-2009. Geophys. Res. Lett., 38 ( 19 ), doi:10.1029/2011GL048970 Abstract: We examine the spatial trends in Arctic ocean internal-combustion engine drift speed from satellite data and the character of wind coerce for the winter months of October through May. Between 1992 and 2009, the spatially average drift in drift speed within the Arctic Basin is 10.6 % ± 0.9 % /decade, and ranges between −4 % and 16 % /decade depending on the location. The mean vogue is dominated by the second half of the period. In fact, for the five years after a clear crack item in March 2004, the average drift increased to 46 % ± 5 % /decade. Over the 1992-2009 period, averaged trends of wind speed from four atmospheric reanalyses are alone 1 % to 2 % /decade. regionally, positive trends in scent accelerate ( of up to 9 % /decade ) are seen over a bombastic fraction of the Central Arctic, where the trends in drift speeds are highest. spatial correlations between the basin-wide trends in scent and drift speeds are mince ( between 0.40 and 0.52 ). Our results suggest that changes in wind amphetamine explain a fraction of the ascertained increase in float speeds in the Central Arctic but not over the integral basin. In other regions thinning of the ice cover is a more probable campaign of the increase in ice drift accelerate. Keywords: 0750 Sea ice, 0758 Remote detection, 1621 Cryospheric change, 4207 Arctic and Antarctic oceanography, 4540 Ice mechanics and air/sea/ice exchange proces, Arctic, drift, reanalysis, ocean internal-combustion engine, trends, wind ECCO Products Used: SeaIceURL: http://dx.doi.org/10.1029/2011GL048970 Other URLs:
Bizouard, C; Remus, F; Lambert, S B; Seoane, L; Gambis, D (2011). The Earth’s variable Chandler wobble, Astronomy & Astrophysics (526), 10.1051/0004-6361/201015894. Title: The Earth ’ s variable Chandler wobble Type: Journal article Publication: Astronomy & Astrophysics Author(s): Bizouard, C ; Remus, F ; Lambert, S B ; Seoane, L ; Gambis, D Year: 2011 Formatted Citation: Bizouard, C., F. Remus, S. B. Lambert, L. Seoane, and D. Gambis, 2011 : The Earth ‘s varying Chandler wobble. Astronomy & Astrophysics, 526, doi:10.1051/0004-6361/201015894 Abstract: Aims. We investigated the causes of the Earth ‘s Chandler wobble unevenness over the past 60 years. Our border on is based on integrate of the atmospheric and oceanic angular momentum computed by global circulation models. We directly compared the solution of the consolidation with the Earth ‘s punt coordinate observed by precise astrometric, space, and geodetic techniques. This access differs from the traditional access in which the observed pivotal apparent motion is transformed into a alleged geodetic excitement routine, and compared afterwards with the angular momentum of the external geophysical fluid layers. Methods. In the fourth dimension world, we integrated the atmospheric angular momentum time series from the National Center for Environmental Prediction/National Center for Atmospheric Research Reanalysis stick out and the oceanic angular momentum data from the ECCO consortium. We extracted the Chandler wobble from this modeled arctic gesture by singular spectrum analysis, and compared it with the Chandler wobble extracted from the note polar gesture given by the International Earth Rotation and Reference Systems Service data. Results. We showed that the combination of the standard atmosphere and the oceans explains most of the observe Chandler careen variations, and is coherent with results reported in the literature and obtained with the traditional approach. Our overture allows one to appreciate the divide contributions of the atmosphere and the oceans to the versatile bumps and valleys observed in the Chandler wobble. Though the atmosphere explains the Chandler careen amplitude variations between 1949 and 1970, the reexcitation of the Chandler wobble that begins in the 1980s, after a minimum around 1970, and that reaches its maximum in the late 1990s is due to the oceans, while the atmospheric contribution remains stable within the same time period. Keywords: Earth, atmospheric angular-momentum, dynamics, excitement, frequency, diametric motion equations, character systems ECCO Products Used: URL: Other URLs:
Piecuch, C G; Ponte, R M (2011). Mechanisms of interannual steric sea level variability, Geophysical Research Letters, 15 (38), 10.1029/2011GL048440. Title: Mechanisms of interannual steric ocean level unevenness Type: Journal article Publication: Geophysical Research Letters Author(s): Piecuch, C G ; Ponte, R M Year: 2011 Formatted Citation: Piecuch, C. G., and R. M. Ponte, 2011 : Mechanisms of interannual steric ocean degree unevenness. Geophys. Res. Lett., 38 ( 15 ), doi:10.1029/2011GL048440 Abstract: Processes contributing to interannual steric ocean level unevenness are studied over the period 1993-2004 using an observationally-constrained ocean state estimate produced by the ECCO ( “ Estimating the Circulation and Climate of the Ocean ” ) consortium. The estimate ‘s dynamic consistency allows for the comprehensive examination attribution of steric changes in terms of advection, diffusion, and surface airiness exchange processes. Steric variations are found to be owing more to oceanic transports than to local anesthetic open buoyancy fluxes. Advection is responsible for steric variability in the tropical indian and Pacific oceans. At extratropical latitudes, advection and diffusion appear to be equally crucial. local surface buoyancy fluxes can contribute in some regions ( for example, the tropical Atlantic ). psychoanalysis of the anomalous wind stress coil shows that extra-equatorial vertical advection is driven chiefly by Ekman pumping. The complexity of the interannual steric budget suggests that anomalous sea tied is probably not predictable on the basis of ocean memory entirely. Furthermore, proper parameterizations of mixing processes and good estimates of wind-driven transports both appear to be very crucial to dependable projections of interannual sea level. Keywords: 4215 Climate and interannual variability, 4260 Ocean data assimilation and reanalysis, 4532 General circulation, 4556 Sea degree : variations and bastardly, 4568 turbulence, and mixing processes, closed property budgets, diffusion, ocean dynamics, sea flush variability ECCO Products Used: ECCO-V2URL: http://dx.doi.org/10.1029/2011GL048440 Other URLs:
Zanna, Laure; Heimbach, Patrick; Moore, Andrew M; Tziperman, Eli (2011). Optimal Excitation of Interannual Atlantic Meridional Overturning Circulation Variability, Journal of Climate, 2 (24), 413-427, 10.1175/2010JCLI3610.1. Title: Optimal Excitation of Interannual Atlantic Meridional Overturning Circulation Variability Type: Journal article Publication: Journal of Climate Author(s): Zanna, Laure ; Heimbach, Patrick ; Moore, Andrew M ; Tziperman, Eli Year: 2011 Formatted Citation: Zanna, L., P. Heimbach, A. M. Moore, and E. Tziperman, 2011 : optimum excitation of Interannual Atlantic Meridional Overturning Circulation Variability. J. Clim., 24 ( 2 ), 413-427, doi:10.1175/2010JCLI3610.1 Abstract: The optimum excitation of Atlantic meridional overturning circulation ( MOC ) anomalies is investigated in an ocean cosmopolitan circulation model with an idealized shape. The optimum three-dimensional spatial structure of temperature and salt perturbations, defined as the leading singular vector and generating the maximum amplification of MOC anomalies, is evaluated by solving a generalized eigenvalue problem using tangent analogue and adjoint models. Despite the stable linearize dynamics, a big amplification of MOC anomalies, largely due to the intervention of nonnormal modes, is initiated by the optimum perturbations. The largest amplification of MOC anomalies, found to be excited by high-latitude abstruse density perturbations in the northerly contribution of the washbasin, is achieved after about 7.5 years. The anomalies grow as a result of a conversion of hateful available potential energy into electric potential and kinetic energy of the perturbations, evocative of baroclinic instability. The time scale of growth of MOC anomalies can be understood by examining the time evolution of deep zonal concentration gradients, which are related to the MOC via the thermal wind relation. The speed of propagation of the concentration anomalies, found to depend on the horizontal component of the mean hang speed and the think of concentration gradient, determines the emergence time scale of the MOC anomalies and consequently provides an upper jump on the MOC predictability meter. The results suggest that the nonnormal linearize ocean dynamics can give advance to enhanced MOC variability if, for example, overflows, eddies, and/or bass convection can excite high-latitude concentration anomalies in the ocean inside with a structure resembling that of the optimum perturbations found in this analyze. The findings besides indicate that errors in ocean initial conditions or in model parameterizations or processes, peculiarly at depth, may importantly reduce the Atlantic MOC predictability time to less than a decade. Keywords: Meridional overturn circulation, Ocean dynamics ECCO Products Used: adjointURL: http://journals.ametsoc.org/doi/abs/10.1175/2010JCLI3610.1 Other URLs:
Xu, Yongsheng; Fu, Lee-Lueng (2011). Global Variability of the Wavenumber Spectrum of Oceanic Mesoscale Turbulence, Journal of Physical Oceanography, 4 (41), 802-809, 10.1175/2010JPO4558.1. Title: Global Variability of the Wavenumber Spectrum of Oceanic Mesoscale Turbulence Type: Journal article Publication: Journal of Physical Oceanography Author(s): Xu, Yongsheng ; Fu, Lee-Lueng Year: 2011 Formatted Citation: Xu, Y., and L. Fu, 2011 : ball-shaped variability of the Wavenumber Spectrum of Oceanic Mesoscale Turbulence. Journal of Physical Oceanography, 41 ( 4 ), 802-809, doi:10.1175/2010JPO4558.1 Abstract: The wavenumber spectrum of sea surface height from satellite altimeter observations have revealed complex spatial variability that can not be explained by a universal theory of mesoscale turbulence. Near the edge of the core regions of high eddy energy, agreement is observed with the prediction of the surface quasigeostrophic ( SQG ) turbulence theory, which has fundamental differences from that of the traditional quasigeostrophic ( QG ) turbulence hypothesis. In the core regions of high eddy energy, the spectrum are coherent with frontogenesis that is not fully accounted for by the SQG hypothesis. however, the observations in the huge ocean interior of low eddy energy exhibit substantial differences from the predictions of existing theories of oceanic mesoscale turbulence. The spectrum in these regions may reflect the ocean ‘s response to short-scale atmospheric pull and air-sea interaction. The observations presented in this paper serve as a test sleep together for newly theories and ocean general circulation models. Keywords: Mesoscale processes, Ocean dynamics, turbulence ECCO Products Used: URL: http://journals.ametsoc.org/doi/abs/10.1175/2010JPO4558.1 Other URLs:
Halkides, Daria; Lee, Tong (2011). Mechanisms controlling seasonal mixed layer temperature and salinity in the Southwestern Tropical Indian Ocean, Dynamics of Atmospheres and Oceans, 3 (51), 77-93, 10.1016/j.dynatmoce.2011.03.002. Title: Mechanisms controlling seasonal worker interracial layer temperature and salt in the Southwestern Tropical Indian Ocean Type: Journal article Publication: Dynamics of Atmospheres and Oceans Author(s): Halkides, Daria ; Lee, Tong Year: 2011 Formatted Citation: Halkides, D., and T. Lee, 2011 : Mechanisms controlling seasonal worker mix layer temperature and salt in the Southwestern Tropical Indian Ocean. Dynamics of Atmospheres and Oceans, 51 ( 3 ), 77-93, doi:10.1016/j.dynatmoce.2011.03.002 Abstract: We use a heat- and salt-conserving ocean state estimate merchandise to study the seasonal worker cycles of the mix level ( ML ) temperature ( MLT ) and brininess ( MLS ) balances over the southwest tropical indian Ocean ( SWTIO ) thermocline ridge ( STR ; 50°-75°E, 12°-5°S ). For seasonal MLT, surface estrus flux and ocean processes are both important. They tend to re-enforce each other during extremum cooling ( May-June ) and warming ( November ) periods, but not during transition periods. The dominant allele ocean process is wind-driven vertical mix. It is modulated by the varying military capability of the monsoon winds ( which affect the vertical diffusivity ), and to a lesser extent by unevenness of thermocline depth ( which influences the vertical stratification across the ML basal ). For example, thermocline shallow in April-July alters the erect stratification near the ML base ; therefore, when the monsoon winds heighten ( June-September ) and the vertical diffusivity increases ( deepening the ML base ), relatively aplomb subsurface water is near the ML basis and easily incorporated into the ML by vertical blend. however, vertical advection as a direct response to thermocline shallow has small affect on MLT. This explains why MLT and thermocline depth are not positively correlated here on the seasonal timescale ( as they are on the interannual timescale ). meridional advection associated with Ekman conveyance driven by the monsoon winds plays a secondary function. Seasonal MLS, however, is dominated by meridional advection. vertical process effects on MLS are belittled, due to a weak brininess gradient near the ML basal throughout the year. © 2011 Elsevier B.V. Keywords: indian Ocean, Mixed layer budgets, Thermocline ridge ECCO Products Used: ECCO-KFSURL: http://dx.doi.org/10.1016/j.dynatmoce.2011.03.002 Other URLs:
McGillicuddy, Dennis; de Young, Brad; Doney, Scott; Glibert, Patricia; Stammer, Detlef; Werner, Francisco (2010). Models: Tools for Synthesis in International Oceanographic Research Programs, Oceanography, 3 (23), 126-139, 10.5670/oceanog.2010.28. Title: Models : Tools for Synthesis in International Oceanographic Research Programs Type: Journal article Publication: oceanography Author(s): McGillicuddy, Dennis ; de Young, Brad ; Doney, Scott ; Glibert, Patricia ; Stammer, Detlef ; Werner, Francisco Year: 2010 Formatted Citation: McGillicuddy, D., B. de Young, S. Doney, P. Glibert, D. Stammer, and F. Werner, 2010 : Models : Tools for Synthesis in International Oceanographic Research Programs, Oceanography, 23 ( 3 ), 126-139, department of the interior : 10.5670/oceanog.2010.28 Abstract: Through its promotion of coordinated international research programs, the Intergovernmental Oceanographic Commission ( IOC ) has facilitated major build up on some of the most challenging problems in oceanography. Issues of global significance — such as general ocean circulation, the carbon hertz, the structure and dynamics of ecosystems, and harmful algal blooms — are therefore bombastic in scope that they require international collaboration to be addressed systematically. International collaborations are tied more important when these issues are affected by anthropogenetic processes — such as climate change, CO2 enhancement, ocean acidification, pollution, and eutrophication — whose impacts may differ greatly throughout the ball-shaped ocean. These problems require an entire portfolio of research activities, including ball-shaped surveys, regional summons studies, time-series observations, laboratory-based investigations, and satellite outback sensing. synthesis of this huge array of results presents its own set of challenges ( Hofmann et al., 2010 ), and models offer an denotative framework for integration of the cognition gained adenine well as detailed probe of the underlying dynamics. Models help us to understand what happened in the past, and to make predictions of future changes — both of which support the development of phone policy and decision make. We review examples of how models have been used for this suite of purposes, focusing on areas where IOC played a key role in organizing and coordinating the inquiry activities. Keywords: ECCO Products Used: ECCO-V3URL: https://tos.org/oceanography/article/models-tools-for-synthesis-in-international-oceanographic-research-programs Other URLs:
Brown, Jaclyn N.; Fedorov, Alexey V. (2010). How Much Energy Is Transferred from the Winds to the Thermocline on ENSO Time Scales?, Journal of Climate, 6 (23), 1563-1580, 10.1175/2009JCLI2914.1. Title: How much Energy Is Transferred from the Winds to the Thermocline on ENSO Time Scales ? Type: Journal article Publication: Journal of Climate Author(s): Brown, Jaclyn N. ; Fedorov, Alexey V. Year: 2010 Formatted Citation: Brown, J.N. and A.V. Fedorov, 2010 : How much Energy Is Transferred from the Winds to the Thermocline on ENSO Time Scales ?, Journal of Climate, 23 ( 6 ), 1563-1580, department of the interior : 10.1175/2009JCLI2914.1 Abstract: The dynamics of El Niño-Southern Oscillation ( ENSO ) are studied in terms of the balance between energy input signal from the winds ( via wind ability ) and changes in the storage of available potential energy in the tropical ocean. presently, there are broad differences in the way ball-shaped general circulation models simulate the dynamics, magnitude, and phase of ENSO events ; therefore, there is a need for bare, physically based metrics to allow for exemplary evaluation. This energy description is a basinwide, built-in, quantitative approach, ideal for intermodel comparison, that assesses model behavior in the subsurface ocean. here it is applied to a range of ocean models and data assimilations within ENSO spatial and temporal role scales. The attack of an El Niño is characterized by a decrease in wind world power that leads to a decrease in available potential energy, and hence a bland thermocline. In contrast, La Niña events are preceded by an addition in wind power that leads to an addition in the available potential department of energy and a exorbitant thermocline. The wind power alters the available electric potential energy via irrepressibility exponent, associated with upright mass fluxes that modify the slope of the isopycnals. only a divide of wind baron is converted to buoyancy office. The efficiency of this conversion γ is estimated in this cogitation at 50 % -60 %. Once the energy is delivered to the thermocline it is subject to small, but significant, diffusing profligacy. It is estimated that this dissipation sets the e-folding damp rate α for the available electric potential energy on the order of 1 yr-1. The authors propose to use the efficiency γ and the damping rate α as two energy-based metrics for evaluating dissipative properties of the ocean component of general circulation models, providing a simple method acting for understanding subsurface ENSO dynamics and a diagnostic tool for exploring differences between the models. Keywords: ECCO Products Used: ECCO-V3URL: https://journals.ametsoc.org/view/journals/clim/23/6/2009jcli2914.1.xml Other URLs:
Kriest, I.; Khatiwala, S.; Oschlies, A. (2010). Towards an assessment of simple global marine biogeochemical models of different complexity, Progress in Oceanography, 3-4 (86), 337-360, 10.1016/j.pocean.2010.05.002. Title: Towards an assessment of bare global marine biogeochemical models of different complexity Type: Journal article Publication: Progress in Oceanography Author(s): Kriest, I. ; Khatiwala, S. ; Oschlies, A. Year: 2010 Formatted Citation: Kriest, I., S. Khatiwala, and A. Oschlies, 2010 : Towards an assessment of bare global nautical biogeochemical models of different complexity, Progress in Oceanography, 86 ( 3-4 ), 337-360, department of the interior : 10.1016/j.pocean.2010.05.002 Abstract: We present a suite of experiments with a hierarchy of biogeochemical models of increasing complexity coupled to an offline ball-shaped ocean circulation exemplar based on the “ conveyance matrix method acting ”. Biogeochemical mannequin structures range from simpleton food models to more complex nutrient-phytoplankton-zooplankton-detritus-DOP models. The models ‘ skill is assessed by assorted misfit functions with respect to observed phosphate and oxygen distributions. While there is generally good agreement between the different metrics employed, an exception is a cost function based on the relative model-data misfit.

We show that alterations in parameters and/or structure of the models – particularly those that change particle export or remineralization profile – involve subsurface and mesopelagic phosphate and oxygen, particularly in the upwelling regions. ocular inspection of simulate biogeochemical tracer distributions american samoa well as the evaluation of different monetary value functions suggest that increasing complexity of upset, unoptimized models, simulated with parameters normally used in large-scale model studies does not inevitably improve performance. alternatively, variations in person model parameters may be of equal, if not greater, importance. Keywords: ECCO Products Used: ECCO-V3URL: https://linkinghub.elsevier.com/retrieve/pii/S0079661110000844 Other URLs:
Liu, Hailong; Lin, Wuyin; Zhang, Minghua (2010). Heat Budget of the Upper Ocean in the South-Central Equatorial Pacific, Journal of Climate, 7 (23), 1779-1792, 10.1175/2009JCLI3135.1. Title: Heat Budget of the Upper Ocean in the south-central Equatorial Pacific Type: Journal article Publication: Journal of Climate Author(s): Liu, Hailong ; Lin, Wuyin ; Zhang, Minghua Year: 2010 Formatted Citation: Hailong, L., L. Wuyin, and Z. Minghua, 2010 : Heat Budget of the Upper Ocean in the south-central Equatorial Pacific, Journal of Climate, 23 ( 7 ), 1779-1792, department of the interior : 10.1175/2009JCLI3135.1 Abstract: The double intertropical convergence zone ( ITCZ ) over the tropical Pacific, with a inauthentic set of maximum annual sea coat temperature ( SST ) south of the equator between 5°S and 10°S, is a chronic diagonal in coupled ocean–atmosphere models. This learn focuses on a area of the double ITCZ in the central Pacific from 5°S to 10°S and 170°E to 150°W, where coupled models display the largest biases in precipitation, by deriving a best calculate of the interracial layer heat budget for the region. Seven ball-shaped datasets of objectively analyze surface energy fluxes and four ocean assimilation products are first compared and then evaluated against field measurements in adjacent regions. It was shown that the global datasets differ greatly in their net down surface energy flux in this area, but they fall broadly into two categories : one with web down estrus flux of about 30 W m-2 and the other around 10 W m-2. Measurements from the adjacent Manus and Nauru sites of the Atmospheric Radiation Measurement Program ( ARM ), the Tropical Atmosphere Ocean ( TAO ) buoys, and the Tropical Ocean and Global Atmosphere Coupled Ocean–Atmosphere Response Experiment ( TOGA COARE ) are then used to show that the smaller rate is more naturalistic. An energy balance of the shuffle layer is last presented for the area as chiefly between warming from surface heat magnetic field of 7 W m-2 and horizontal advective cool in the zonal direction of about 5 W m-2, with secondary contributions from meridional and vertical advections, inflame repositing, and subgrid-scale mix. The 7 W m-2 web airfoil heat flux density consists of warming of 210 W m-2 from solar radiation and cooling of 53, 141, and 8 W m-2, respectively, from longwave radiation, latent heat flux, and sensible estrus flux. These values provide an experimental basis to further study the initial development of excessive precipitation in couple climate models in the cardinal Pacific. Keywords: ECCO Products Used: ECCO-V3URL: https://journals.ametsoc.org/view/journals/clim/23/7/2009jcli3135.1.xml Other URLs:
Bianchi, Daniele; Sarmiento, Jorge L.; Gnanadesikan, Anand; Key, Robert M.; Schlosser, Peter; Newton, Robert (2010). Low helium flux from the mantle inferred from simulations of oceanic helium isotope data, Earth and Planetary Science Letters, 3-4 (297), 379-386, 10.1016/j.epsl.2010.06.037. Title: low helium liquefy from the mantle inferred from simulations of oceanic helium isotope data Type: Journal article Publication: Earth and Planetary Science Letters Author(s): Bianchi, Daniele ; Sarmiento, Jorge L. ; Gnanadesikan, Anand ; Key, Robert M. ; Schlosser, Peter ; Newton, Robert Year: 2010 Formatted Citation: Bianchi, D., J. L. Sarmiento, A. Gnanadesikan, R. M. Key, P. Schlosser, and R. Newton, 2010 : first gear helium liquefy from the mantle inferred from simulations of oceanic helium isotope data. earth and Planetary Science Letters, 297 ( 3-4 ), 379-386, doi:10.1016/j.epsl.2010.06.037 Abstract: Keywords: ECCO Products Used: OCCAURL: https://linkinghub.elsevier.com/retrieve/pii/S0012821X10004127 Other URLs:
Jansen, Malte F.; Ferrari, Raffaele; Mooring, Todd A. (2010). Seasonal versus permanent thermocline warming by tropical cyclones, Geophysical Research Letters, 3 (37), n/a-n/a, 10.1029/2009GL041808. Title: Seasonal versus permanent wave thermocline warming by tropical cyclones Type: Journal article Publication: Geophysical Research Letters Author(s): Jansen, Malte F. ; Ferrari, Raffaele ; Mooring, Todd A. Year: 2010 Formatted Citation: Jansen, M. F., R. Ferrari, and T. A. Mooring, 2010 : seasonal versus permanent thermocline thaw by tropical cyclones. Geophys. Res. Lett., 37 ( 3 ), n/a-n/a, doi:10.1029/2009GL041808 Abstract: Keywords: ECCO Products Used: OCCAURL: http://doi.wiley.com/10.1029/2009GL041808 Other URLs:
Palter, J. B.; Sarmiento, J. L.; Gnanadesikan, A.; Simeon, J.; Slater, R. D. (2010). Fueling export production: nutrient return pathways from the deep ocean and their dependence on the Meridional Overturning Circulation, Biogeosciences, 11 (7), 3549-3568, 10.5194/bg-7-3549-2010. Title: Fueling export production : alimentary return pathways from the bass ocean and their addiction on the Meridional Overturning Circulation Type: Journal article Publication: Biogeosciences Author(s): Palter, J. B. ; Sarmiento, J. L. ; Gnanadesikan, A. ; Simeon, J. ; Slater, R. D. Year: 2010 Formatted Citation: Palter, J. B., J. L. Sarmiento, A. Gnanadesikan, J. Simeon, and R. D. Slater, 2010 : Fueling export production : alimentary return key pathways from the deep ocean and their addiction on the Meridional Overturning Circulation. Biogeosciences, 7 ( 11 ), 3549-3568, doi:10.5194/bg-7-3549-2010 Abstract: Abstract. In the Southern Ocean, mixing and upwelling in the presence of inflame and fresh water come on fluxes transform subpycnocline urine to lighter densities as separate of the up arm of the Meridional Overturning Circulation ( MOC ). One speculate shock of this transformation is the restoration of nutrients to the global pycnocline, without which biological productiveness at low latitudes would be significantly reduced. here we use a novel arrange of modeling experiments to explore the causes and consequences of the Southern Ocean alimentary return pathway. specifically, we quantify the contribution to global productivity of nutrients that rise from the ocean home in the Southern Ocean, the northerly high latitudes, and by mixing across the low latitude pycnocline. In addition, we evaluate how the strength of the Southern Ocean winds and the parameterizations of subgridscale processes change the dominant allele alimentary return pathways in the ocean. Our results suggest that nutrients upwelled from the deep ocean in the Antarctic Circumpolar Current and subducted in Subantartic Mode Water support between 33 and 75 % of global export production between 30° S and 30° N. The high end of this range results from an ocean model in which the MOC is driven chiefly by wind-induced southern Ocean upwelling, a shape favored due to its fidelity to tracer data, while the humble end results from an MOC driven by high diapycnal diffusivity in the pycnocline. In all models, nutrients exported in the SAMW layer are utilized and converted quickly ( in less than 40 years ) to remineralized nutrients, explaining former modeling results that showed small influence of the drawdown of SAMW airfoil nutrients on atmospheric carbon concentrations. Keywords: ECCO Products Used: OCCAURL: https://bg.copernicus.org/articles/7/3549/2010/ Other URLs:
Huybers, Peter; Wunsch, Carl (2010). Paleophysical Oceanography with an Emphasis on Transport Rates, Annual Review of Marine Science, 1 (2), 1-34, 10.1146/annurev-marine-120308-081056. Title: Paleophysical Oceanography with an emphasis on Transport Rates Type: Journal article Publication: Annual Review of Marine Science Author(s): Huybers, Peter ; Wunsch, Carl Year: 2010 Formatted Citation: Huybers, P., and C. Wunsch, 2010 : Paleophysical Oceanography with an emphasis on Transport Rates. Annual Review of Marine Science, 2 ( 1 ), 1-34, doi:10.1146/annurev-marine-120308-081056 Abstract: Keywords: ECCO Products Used: OCCAURL: http://www.annualreviews.org/doi/10.1146/annurev-marine-120308-081056 Other URLs:
Douglass, Elizabeth; Roemmich, Dean; Stammer, Detlef (2010). Interannual variability in North Pacific heat and freshwater budgets, Deep-Sea Research Part II: Topical Studies in Oceanography, 13-14 (57), 1127-1140, 10.1016/j.dsr2.2010.01.001. Title: Interannual unevenness in North Pacific heat and fresh water budgets Type: Journal article Publication: Deep-Sea Research Part II : topical Studies in oceanography Author(s): Douglass, Elizabeth ; Roemmich, Dean ; Stammer, Detlef Year: 2010 Formatted Citation: Douglass, E., D. Roemmich, and D. Stammer, 2010 : Interannual unevenness in North Pacific heating system and fresh water budgets. Deep-Sea Research Part II : topical Studies in Oceanography, 57 ( 13-14 ), 1127-1140, doi:10.1016/j.dsr2.2010.01.001 Abstract: Transports of volume, heat, and fresh water in the North Pacific Ocean from 1992 to 2004 are analyzed using a long-run high gear resolution expendable bathythermography ( XBT ) dataset and output from a data-assimilating mannequin. Estimates of geostrophic transport from the data are compared with the mannequin transmit to close the volume budget union of the trans-Pacific XBT track. advective transportation from both model output and data are combined with surface fluxes to determine budgets of heat and fresh water in the close region. The north heat transport across the XBT track is estimated to be 0.74 ± 0.1 pW, and has variability of about 0.5 pW on 3-4 year time scales, while fresh water transmit is estimated to be – 0.1 ± 0.06 Sv. The balance between north advective heat enchant and surface heating system flux density gives a time-varying calculate of heat storehouse that compares well with observations. A like balance is found between model estimates of advective fresh water transport and surface fresh water flux. Despite a scarcity of observations and uncertainties in all components, this analysis results in closely closed budgets of volume, hotness, and fresh water. Mean estimates of advective conveyance of both inflame and fresh water agree with previous estimates. An analysis of each part of the heat budget with latitude indicates that a relative miss of time-variability of the surface component is consistent throughout the North Pacific. The dominant advective part is driven by changes in the wind stress coil field. For both heat and fresh water repositing, firm signals occur concurrently at all latitudes. This behavior could indicate that these signals are controlled by large-scale dynamics, quite than minor disturbances from which signals would need to propagate to be widely felt. The analysis demonstrates the rate of bringing models and data together, resulting in budgets that are consistent with observations, yet provide a comprehensive examination spirit at the unevenness of North Pacific heat and fresh water memory that would be unavailable from data entirely. © 2010 Elsevier Ltd. All rights reserved. Keywords: Data acculturation, Heat budget, Heat transportation, Interannual variability, North Pacific Ocean, Salt budget, XBTs ECCO Products Used: URL: http://www.sciencedirect.com/science/article/pii/S0967064510000056 Other URLs:
Lee, T; Stammer, D; Awaji, T; Balmaseda, M; Behringer, D; Carton, J; Ferry, N; Fischer, A; Fukumori, I; Giese, B; Haines, K; Harrison, E; Heimbach, P; Kamachi, M; Keppenne, C; Köhl, A; Masina, S; Menemenlis, Dimitris; Ponte, R; Remy, E; Rienecker, M; Rosati, A; Schroeter, J; Smith, D; Weaver, A; Wunsch, C; Xue, Y (2010). Ocean state estimation for climate research, Proceedings of OceanObs’09: Sustained Ocean Observations and Information for Society (Vol. 2), 10.5270/OceanObs09.cwp.55. Title: Ocean express estimate for climate research Type: Conference Proceedings Publication: Proceedings of OceanObs’09 : Sustained Ocean Observations and Information for Society ( Vol. 2 ) Author(s): Lee, T ; Stammer, D ; Awaji, T ; Balmaseda, M ; Behringer, D ; Carton, J ; Ferry, N ; Fischer, A ; Fukumori, I ; Giese, B ; Haines, K ; Harrison, E ; Heimbach, P ; Kamachi, M ; Keppenne, C ; Köhl, A ; Masina, S ; Menemenlis, Dimitris ; Ponte, R ; Remy, E ; Rienecker, M ; Rosati, A ; Schroeter, J ; Smith, D ; Weaver, A ; Wunsch, C ; Xue, Y Year: 2010 Formatted Citation: Lee, T. and Coauthors, 2010 : ocean state of matter estimate for climate research. Proceedings of OceanObs’09 : Sustained Ocean Observations and Information for Society ( Vol. 2 ), J. Hall, D. E. Harrison, and D. Stammer, Eds. ESA Publication WPP-306, Venice, Italy, 21-25 September 2009 doi:10.5270/OceanObs09.cwp.55. Abstract: Keywords: ECCO Products Used: ECCO-KFS ; ECCO-V1 ; ECCO-V2 ; ECCO2 ; GECCO URL: Other URLs:
Wunsch, C (2010). Observational network design for climate, Proceedings of OceanObs’09: Sustained Ocean Observations and Information for Society (Vol. 1), 10.5270/OceanObs09.pp.41. Title: Observational network design for climate Type: Conference Proceedings Publication: Proceedings of OceanObs’09 : Sustained Ocean Observations and Information for Society ( Vol. 1 ) Author(s): Wunsch, C Year: 2010 Formatted Citation: Wunsch, C., 2010 : experimental network plan for climate. Proceedings of OceanObs’09 : Sustained Ocean Observations and Information for Society ( Vol. 1 ), J. Hall, D. E. Harrison, and D. Stammer, Eds. ESA Publication WPP-306, Venice, Italy, 21-25 September 2009 doi:10.5270/OceanObs09.pp.41. Abstract: Keywords: ECCO Products Used: URL: Other URLs:
Mazloff, Matthew R; Heimbach, Patrick; Wunsch, Carl (2010). An Eddy-Permitting Southern Ocean State Estimate, Journal of Physical Oceanography, 5 (40), 880-899, 10.1175/2009JPO4236.1. Title: An Eddy-Permitting southerly Ocean State Estimate Type: Journal article Publication: Journal of Physical Oceanography Author(s): Mazloff, Matthew R ; Heimbach, Patrick ; Wunsch, Carl Year: 2010 Formatted Citation: Mazloff, M. R., P. Heimbach, and C. Wunsch, 2010 : An Eddy-Permitting southern Ocean State Estimate. Journal of Physical Oceanography, 40 ( 5 ), 880-899, doi:10.1175/2009JPO4236.1 Abstract: An eddy-permitting cosmopolitan circulation model of the Southern Ocean is fit by constrained least squares to a large experimental dataset during 2005-06. Data used include Argo float profiles, CTD synoptic sections, Southern Elephant Seals as Oceanographic Samplers ( SEaOS ) instrument-mounted seal profiles, XBTs, altimetric observations [ Envisat, Geosat, Jason-1, and Ocean Topography Experiment ( TOPEX ) /Poseidon ], and infrared and microwave radiometer observed sea surface temperature. An adjoint exemplar is used to determine descent directions in minimizing a misfit function, each of whose elements has been weighted by an calculate of the experimental plus mannequin error. The model is brought into near agreement with the data by adjusting its control vector, here consisting of initial and meteorologic boundary conditions. Although total consistency has not even been achieved, the existing solution is in good agreement with the great majority of the 2005 and 2006 Southern Ocean observations and better represents these data than does the World Ocean Atlas 2001 ( WOA01 ) climatological merchandise. The estimate captures the oceanic temporal unevenness and in this esteem represents a major improvement upon earlier static inverse estimates. During the estimate period, the Drake Passage volume transport is 153 ± 5 Sv ( 1 Sv ≡ 106 m3 s−1 ). The Ross and Weddell polar coil transports are 20 ± 5 Sv and 40 ± 8 Sv, respectively. Across 32°S there is a airfoil meridional overturning cell of 12 ± 12 Sv, an intercede cell of 17 ± 12 Sv, and an abyssal cell of 13 ± 6 Sv. The north hotness and fresh water anomaly transports across 30°S are −0.3 PW and 0.7 Sv, with estimated uncertainties of 0.5 PW and 0.2 Sv. The net income rate of fart work is 2.1 ± 1.1 TW. Southern Ocean theories involving short-change temporal- and spatial-scale dynamics may nowadays be tested with a dynamically and thermodynamically realistic general circulation model solution that is known to be compatible with the modern experimental datasets. Keywords: Eddies, Meridional, Ocean circulation, Southern Ocean ECCO Products Used: SOSEURL: http://journals.ametsoc.org/doi/abs/10.1175/2009JPO4236.1 Other URLs:
Saba, Vincent S; Friedrichs, Marjorie A M; Carr, Mary-Elena; Antoine, David; Armstrong, Robert A; Asanuma, Ichio; Aumont, Olivier; Bates, Nicholas R; Behrenfeld, Michael J; Bennington, Val; Bopp, Laurent; Bruggeman, Jorn; Buitenhuis, Erik T; Church, Matthew J; Ciotti, Aurea M; Doney, Scott C; Dowell, Mark; Dunne, John; Dutkiewicz, Stephanie; Gregg, Watson; Hoepffner, Nicolas; Hyde, Kimberly J W; Ishizaka, Joji; Kameda, Takahiko; Karl, David M; Lima, Ivan; Lomas, Michael W; Marra, John; McKinley, Galen A.; Mélin, Frédéric; Moore, J Keith; Morel, André; O’Reilly, John; Salihoglu, Baris; Scardi, Michele; Smyth, Tim J; Tang, Shilin; Tjiputra, Jerry; Uitz, Julia; Vichi, Marcello; Waters, Kirk; Westberry, Toby K; Yool, Andrew (2010). Challenges of modeling depth-integrated marine primary productivity over multiple decades: A case study at BATS and HOT, Global Biogeochemical Cycles, 3 (24), 10.1029/2009GB003655. Title: Challenges of modeling depth-integrated marine primary productivity over multiple decades : A case study at BATS and HOT Type: Journal article Publication: Global Biogeochemical Cycles Author(s): Saba, Vincent S ; Friedrichs, Marjorie A M ; Carr, Mary-Elena ; Antoine, David ; Armstrong, Robert A ; Asanuma, Ichio ; Aumont, Olivier ; Bates, Nicholas R ; Behrenfeld, Michael J ; Bennington, Val ; Bopp, Laurent ; Bruggeman, Jorn ; Buitenhuis, Erik T ; Church, Matthew J ; Ciotti, Aurea M ; Doney, Scott C ; Dowell, Mark ; Dunne, John ; Dutkiewicz, Stephanie ; Gregg, Watson ; Hoepffner, Nicolas ; Hyde, Kimberly J W ; Ishizaka, Joji ; Kameda, Takahiko ; Karl, David M ; Lima, Ivan ; Lomas, Michael W ; Marra, John ; McKinley, Galen A. ; Mélin, Frédéric ; Moore, J Keith ; Morel, André ; O’Reilly, John ; Salihoglu, Baris ; Scardi, Michele ; Smyth, Tim J ; Tang, Shilin ; Tjiputra, Jerry ; Uitz, Julia ; Vichi, Marcello ; Waters, Kirk ; Westberry, Toby K ; Yool, Andrew Year: 2010 Formatted Citation: Saba, V. S. and Coauthors, 2010 : Challenges of modeling depth-integrated marine basal productiveness over multiple decades : A case cogitation at BATS and HOT. Global Biogeochemical Cycles, 24 ( 3 ), doi:10.1029/2009GB003655 Abstract: The performance of 36 models ( 22 ocean color models and 14 biogeochemical ocean circulation models ( BOGCMs ) ) that estimate depth-integrated marine internet primary productiveness ( NPP ) was assessed by comparing their output signal to in situ 14C data at the Bermuda Atlantic Time series Study ( BATS ) and the Hawaii Ocean Time serial ( HOT ) over about two decades. specifically, skill was assessed based on the models ‘ ability to estimate the observe base, unevenness, and trends of NPP. At both sites, more than 90 % of the models underestimated think of NPP, with the average bias of the BOGCMs being about twice that of the ocean color models. however, the dispute in overall skill between the best BOGCM and the best ocean color model at each site was not meaning. between 1989 and 2007, in situ NPP at BATS and HOT increased by an average of about 2 % per year and was positively correlated to the North Pacific Gyre Oscillation index. The majority of ocean color models produced in situ NPP trends that were closer to the observe trends when chlorophyll-a was derived from high-performance liquid chromatography ( HPLC ), rather than fluorometric or SeaWiFS data. however, this was a function of time such that average course magnitude was more accurately estimated over longer time periods. Among BOGCMs, entirely two person models successfully produced an increasing NPP course ( one model at each web site ). We caution against the practice of models to assess multiannual changes in NPP over light time periods. Ocean color model estimates of NPP trends could improve if more eminent quality HPLC chlorophyll-a time series were available. Keywords: 4255 Numerical model, 4277 Time series experiments, 4513 Decadal ocean unevenness, 4815 Ecosystems, BATS HOT trends, and model, dynamics, marine chief productiveness models, multidecadal climate impel, structure ECCO Products Used: ECCO-V2URL: http://dx.doi.org/10.1029/2009GB003655 Other URLs: hypertext transfer protocol : //doi.wiley.com/10.1029/2009GB003655
Menemenlis, Dimitris; Zhang, Hong; Heimbach, P; Hill, Christopher N.; Campin, Jean-Michel; Forget, Gaël; Losch, Martin; Nguyen, A; Schodlok, M (2010). Global Ocean and Sea Ice State Estimation in the Presence of Eddies, Proceedings of OceanObs’09: Sustained Ocean Observations and Information for Society (Additional Contributions), 10.5270/OceanObs09. Title: Global Ocean and Sea Ice State Estimation in the Presence of Eddies Type: Conference Proceedings Publication: Proceedings of OceanObs’09 : Sustained Ocean Observations and Information for Society ( Additional Contributions ) Author(s): Menemenlis, Dimitris ; Zhang, Hong ; Heimbach, P ; Hill, Christopher N. ; Campin, Jean-Michel ; Forget, Gaël ; Losch, Martin ; Nguyen, A ; Schodlok, M Year: 2010 Formatted Citation: Menemenlis, D. and Coauthors, 2010 : global Ocean and Sea Ice State Estimation in the Presence of Eddies. Proceedings of OceanObs’09 : Sustained Ocean Observations and Information for Society ( Additional Contributions ), J. Hall, D. E. Harrison, and D. Stammer, Eds. ESA Publication WPP-306, Venice, Italy doi:10.5270/OceanObs09. Abstract: We aim to demonstrate the feasibility and utility of global, eddying ocean and ocean ice state estimate. A first gear synthesis for the period 1992-2002 has been obtained using a Green ‘s functions approach. Data constraints include hydrography, altimetry, graveness, vagrant, and observations of sea-ice. Although the control distance is small ( ~80 parameters ), this first globalocean and ocean frost data synthesis substantially reduces large-scale biases and drifts of the exemplary proportional to observations and to the baseline integration. A moment deduction is being obtained during the ARGO-rich time period using the adjoint method acting, which permits a much larger issue of control condition parameters to be estimated. Keywords: ECCO Products Used: ECCO2 ; SeaIceURL: http://www.oceanobs09.net/proceedings/ac/FCXNL-09A02-1731998-1-ac4c09.pdf Other URLs:
Volkov, Denis L.; Fu, Lee-Lueng; Lee, Tong (2010). Mechanisms of the meridional heat transport in the Southern Ocean, Ocean Dynamics, 4 (60), 791-801, 10.1007/s10236-010-0288-0. Title: Mechanisms of the meridional estrus transport in the southerly Ocean Type: Journal article Publication: Ocean Dynamics Author(s): Volkov, Denis L. ; Fu, Lee-Lueng ; Lee, Tong Year: 2010 Formatted Citation: Volkov, D. L., L. Fu, and T. Lee, 2010 : Mechanisms of the meridional hotness transport in the southerly Ocean. Ocean Dynamics, 60 ( 4 ), 791-801, doi:10.1007/s10236-010-0288-0 Abstract: The southern Ocean ( SO ) transports heating system towards Antarctica and plays an authoritative function in determining the heat budget of the Antarctic climate system. A ball-shaped ocean data deduction intersection at eddy-permitting resolving power from the Estimating the Circulation and Climate of the Ocean, Phase II ( ECCO2 ) visualize is used to estimate the meridional heat transport ( MHT ) in the SO and to analyze its mechanism. Despite the acute eddy activity, we demonstrate that most of the poleward MHT in the SO is due to the time-mean fields of the meridional speed, V, and potential temperature, θ. This is because the think of circulation in the SO is not rigorously zonal. The south-polar Circumpolar Current carries warm waters from the region south of the Agulhas Retroflection to the lower latitudes of the Drake Passage and the Malvinas Current carries cold waters northbound along the argentinian ledge. Correlations between the time-varying fields of V and θ ( defined as ephemeral processes ) significantly contribute to the horizontal-gyre heat ecstasy, but not the overturning heat transport. In the highly energetic regions of the Agulhas Retroflection and the Brazil-Malvinas Confluence the contribution of the horizontal transient processes to the total MHT exceeds the contribution of the hateful horizontal run. We show that the south total MHT is chiefly maintained by the meridional digression of the mean geostrophic horizontal shear menstruate ( i, deviation from the zonal average ) associated with the Antarctic Circumpolar Current that balances the equatorward MHT due to the Ekman transportation and provides a net poleward MHT in the SO. The indian sector of the SO serves as the main pathway for the poleward MHT. Keywords: ECCO Products Used: ECCO2URL: http://dx.doi.org/10.1007/s10236-010-0288-0 Other URLs:
van der Werf, P M; van Leeuwen, P J; Ridderinkhof, H; de Ruijter, W P M (2010). Comparison between observations and models of the Mozambique Channel transport: Seasonal cycle and eddy frequencies, Journal of Geophysical Research: Oceans, C2 (115), 10.1029/2009JC005633. Title: Comparison between observations and models of the Mozambique Channel tape drive : seasonal worker cycle and eddy frequencies Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): vanguard five hundred Werf, P M ; avant-garde Leeuwen, P J ; Ridderinkhof, H ; de Ruijter, W P M Year: 2010 Formatted Citation: van five hundred Werf, P. M., P. J. van Leeuwen, H. Ridderinkhof, and W. P. M. de Ruijter, 2010 : comparison between observations and models of the Mozambique Channel enchant : seasonal worker cycle and eddy frequencies. J. Geophys. Res. Ocean., 115 ( C2 ), doi:10.1029/2009JC005633 Abstract: A time series of the observe transport through an array of moorings across the Mozambique Channel is compared with that of six exemplary runs with ocean general circulation models. In the observations, the seasonal motorbike can not be distinguished from bolshevik noise, while this cycle is prevailing in the ecstasy of the numeral models. It is found, however, that the seasonal cycles of the observations and numerical models are alike in strength and phase. These cycles have an amplitude of 5 Sv and a maximal in September, and can be explained by the annual magnetic declination of the wind force. The seasonal worker cycle in the models is dominant because the spectral density at other frequencies is underrepresented. main deviations from the observations are found at depths shallower than 1500 megabyte and in the 5/y-6/y frequency range. Nevertheless, the social organization of eddies in the models is close to the observe eddy structure. The discrepancy is found to be related to the geological formation mechanism and the formation position of the eddies. In the observations, eddies are frequently formed from an overshooting current near the mooring section, as proposed by Ridderinkhof and de Ruijter ( 2003 ) and Harlander et aluminum. ( 2009 ). This causes an alternation of events at the mooring department, varying between a strong southerly current, and the formation and casual of an eddy. This results in a large variation of transportation in the frequency scope of 5/y-6/y. In the models, the eddies are formed further north and propagate through the part. No alternation exchangeable to the observations is observed, resulting in a more constant transmit. Keywords: 0550 Model confirmation and establishment, 4277 Time series experiments, 4512 Currents, 4520 Eddies and mesoscale processes, 4532 General circulation, amerind Ocean, Mozambique Channel, comparison observations and models ECCO Products Used: URL: http://dx.doi.org/10.1029/2009JC005633 Other URLs:
Hoteit, I.; Cornuelle, B.; Heimbach, P. (2010). An eddy-permitting, dynamically consistent adjoint-based assimilation system for the tropical Pacific: Hindcast experiments in 2000, Journal of Geophysical Research, C3 (115), C03001, 10.1029/2009JC005437. Title: An eddy-permitting, dynamically reproducible adjoint-based assimilation system for the tropical Pacific : Hindcast experiments in 2000 Type: Journal article Publication: Journal of Geophysical Research Author(s): Hoteit, I. ; Cornuelle, B. ; Heimbach, P. Year: 2010 Formatted Citation: Hoteit, I., B. Cornuelle, and P. Heimbach, 2010 : An eddy-permitting, dynamically consistent adjoint-based assimilation system for the tropical Pacific : Hindcast experiments in 2000. Journal of Geophysical Research, 115 ( C3 ), C03001, doi:10.1029/2009JC005437 Abstract: An eddy-permitting adjoint-based assimilation system has been implemented to estimate the country of the tropical Pacific Ocean. The system uses the Massachusetts Institute of Technology ‘s cosmopolitan circulation model and its adjoint. The adjoint method is used to adjust the model to observations by controlling the initial temperature and brininess ; temperature, salt, and horizontal velocities at the loose boundaries ; and surface fluxes of momentum, hotness, and fresh water. The model is constrained with most of the available data sets in the tropical Pacific, including Tropical Atmosphere and Ocean, ARGO, expendable bathythermograph, and satellite SST and sea surface acme data, and climatologies. Results of hindcast experiments in 2000 suggest that the iterate adjoint-based descent is able to significantly improve the model consistency with the multivariate data sets, providing a dynamically reproducible realization of the tropical Pacific circulation that broadly matches the observations to within assign errors. The estimate mannequin state is evaluated both by comparisons with observations and by checking the controls, the momentum balances, and the representation of small-scale features that were not well sampled by the observations used in the assimilation. As partially of these checks, the estimated controls are smoothed and applied in independent model runs to check that little changes in the controls do not greatly change the mannequin hindcast. This is a elementary ensemble-based doubt analysis. In addition, the original and polish controls are applied to a translation of the model with double horizontal resolution resulting in a broadly similar “ downscaled ” hindcast, showing that the adjustments are not tuned to a single shape ( meaning resolution, topography, and parameter settings ). The time-evolving model department of state and the adjust controls should be utilitarian for psychoanalysis or to supply the storm, initial, and boundary conditions for runs of other models. Keywords: 4255 Numerical model, 4260 Ocean data assimilation and reanalysis, 4532 General circulation, 4DVAR, data assimilation, tropical Pacific ECCO Products Used: ECCO-V1URL: http://doi.wiley.com/10.1029/2009JC005437 Other URLs: hypertext transfer protocol : //dx.doi.org/10.1029/2009JC005437
Volkov, Denis L.; Fu, Lee-Lueng (2010). On the Reasons for the Formation and Variability of the Azores Current, Journal of Physical Oceanography, 10 (40), 2197-2220, 10.1175/2010JPO4326.1. Title: On the Reasons for the Formation and Variability of the Azores Current Type: Journal article Publication: Journal of Physical Oceanography Author(s): Volkov, Denis L. ; Fu, Lee-Lueng Year: 2010 Formatted Citation: Volkov, D. L., and L. Fu, 2010 : On the Reasons for the Formation and Variability of the Azores Current. Journal of Physical Oceanography, 40 ( 10 ), 2197-2220, doi:10.1175/2010JPO4326.1 Abstract: Recent studies have shown that the formation of the chiseled, zonally oriented Azores Current may be the result of body of water bulk transformation associated with the Mediterranean escape in the Gulf of Cadiz. As the dense Mediterranean water descends down the continental slope, it entrains overlying North Atlantic Central Water. It is believed that the Azores Current then forms as part of the horizontal recirculating coil generated through the β-plume mechanism. In this discipline, the authors far explore this hypothesis by performing a series of numerical experiments. These experiments are based on a high-resolution general circulation model that includes the Mediterranean Sea and that realistically simulates the water mass commute through the Strait of Gibraltar and the transport and unevenness of the Azores Current. The authors show that the discrepancy of the relative vorticity flux and the global vorticity flux, associated with planetary waves, are the main factors determining the variability of the Azores Current. It is shown experimentally that the settlement of the Strait of Gibraltar leads to a complete disappearance of the Azores Current. On the other hand, with the open Strait of Gibraltar, the Azores Current persists even when the tip push over the region is turned off. The atmospheric storm is frankincense not responsible for the formation of the Azores Current, but it affects the unevenness of the current with a minor consequence on its order of magnitude. numeral experiments suggest that the intensity and the variability of the Azores Current count on the order of magnitude of the urine bulk exchange through the Strait of Gibraltar but not on its seasonal unevenness. Keywords: Currents, Gyres, Mediterranean Sea ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/abs/10.1175/2010JPO4326.1 Other URLs:
Qu, T D; Gao, S; Fukumori, I; Fine, R A; Lindstrom, E J (2010). The Obduction of Equatorial 13 degrees C Water in the Pacific Identified by a Simulated Passive Tracer, Journal of Physical Oceanography, 10 (40), 2282-2297, 10.1175/2010jpo4358.1. Title: The Obduction of Equatorial 13 degrees C Water in the Pacific Identified by a Simulated Passive Tracer Type: Journal article Publication: Journal of Physical Oceanography Author(s): Qu, T D ; Gao, S ; Fukumori, I ; Fine, R A ; Lindstrom, E J Year: 2010 Formatted Citation: Qu, T. D., S. Gao, I. Fukumori, R. A. Fine, and E. J. Lindstrom, 2010 : The Obduction of Equatorial 13 degrees C Water in the Pacific Identified by a Simulated Passive Tracer. Journal of Physical Oceanography, 40 ( 10 ), 2282-2297, doi:10.1175/2010jpo4358.1 Abstract: The obduction of equatorial 13 degrees C Water in the Pacific is investigated using a model passive tracer of the Consortium for Estimating the Circulation and Climate of the Ocean ( ECCO ). The resultant role shows that the 13 degrees C Water initialized in the region 8 degrees N-8 degrees S, 130 degrees-90 degrees W enters the surface blend level in the easterly tropical Pacific, chiefly through upwelling near the equator, in the Costa Rica Dome, and along the coast of Peru. approximately two-thirds of this obduction occurs within 10 years after the 13 degrees C Water being initialized, with the upper berth helping of the urine aggregate reaching the airfoil mix layer in only about a calendar month. The obduction of the 13 degrees C Water helps to maintain a cool sea come on temperature year-round, equivalent to a surface heat flux of about -6.0 W molarity ( -2 ) averaged over the easterly tropical Pacific ( 15 degrees S-15 degrees N, 130 degrees W-eastern boundary ) for the period of consolidation ( 1993-2006 ). During El Nino years, when the thermocline deepens as a consequence of the east wind fart dampen, the obduction of the 13 degrees C Water is suppressed, and the reduce vertical entrainment generates a warming anomaly of up to 10 W thousand ( -2 ) in the eastern tropical Pacific and in particular along the coast of Peru, providing explanations for the calefacient of ocean open temperature that can not be accounted for by local anesthetic winds entirely. The situation is reversed during La Nina years. Keywords: annual cycle, circulation, costa-rica attic, dynamics, easterly tropical pacific, indonesian throughflow, ocean, sea-surface temperature, subsurface countercurrents, tsuchiya jet ECCO Products Used: ECCO-KFS URL: Other URLs:
Mcguire, A.D.; Hayes, D.J.; Kicklighter, D.W.; Manizza, M.; Zhuang, Q.; Chen, M.; Follows, Michael J.; Gurney, K.R.; Mcclelland, J.W.; Melillo, J.M.; Peterson, B.J.; Prinn, R.G. (2010). An analysis of the carbon balance of the Arctic Basin from 1997 to 2006, Tellus B: Chemical and Physical Meteorology, 5 (62), 455-474, 10.1111/j.1600-0889.2010.00497.x. Title: An psychoanalysis of the carbon proportion of the Arctic Basin from 1997 to 2006 Type: Journal article Publication: Tellus barn : Chemical and Physical Meteorology Author(s): Mcguire, A.D. ; Hayes, D.J. ; Kicklighter, D.W. ; Manizza, M. ; Zhuang, Q. ; Chen, M. ; Follows, Michael J. ; Gurney, K.R. ; Mcclelland, J.W. ; Melillo, J.M. ; Peterson, B.J. ; Prinn, R.G. Year: 2010 Formatted Citation: Mcguire, A. and Coauthors, 2010 : An analysis of the carbon balance of the Arctic Basin from 1997 to 2006. Tellus B : Chemical and Physical Meteorology, 62 ( 5 ), 455-474, doi:10.1111/j.1600-0889.2010.00497.x Abstract: Keywords: ECCO Products Used: ECCO2URL: https://www.tandfonline.com/doi/full/10.1111/j.1600-0889.2010.00497.x Other URLs:
Zanna, Laure; Heimbach, Patrick; Moore, Andrew M; Tziperman, Eli (2010). The Role of Ocean Dynamics in the Optimal Growth of Tropical SST Anomalies, Journal of Physical Oceanography, 5 (40), 983-1003, 10.1175/2009JPO4196.1. Title: The Role of Ocean Dynamics in the Optimal Growth of Tropical SST Anomalies Type: Journal article Publication: Journal of Physical Oceanography Author(s): Zanna, Laure ; Heimbach, Patrick ; Moore, Andrew M ; Tziperman, Eli Year: 2010 Formatted Citation: Zanna, L., P. Heimbach, A. M. Moore, and E. Tziperman, 2010 : The Role of Ocean Dynamics in the Optimal Growth of Tropical SST Anomalies. Journal of Physical Oceanography, 40 ( 5 ), 983-1003, doi:10.1175/2009JPO4196.1 Abstract: The role of ocean dynamics in optimally exciting interannual unevenness of tropical sea surface temperature ( SST ) anomalies is investigated using an idealized-geometry ocean general circulation model. initial temperature and salt perturbations leading to an optimum increase of tropical SST anomalies, typically arising from the nonnormal dynamics, are evaluated. The structure of the optimum perturbations is characterized by relatively solid deep brininess anomalies near the western limit generating a ephemeral amplification of equatorial SST anomalies in less than four years. The associate emergence mechanism is linked to the excitement of coastal and equatorial Kelvin waves near the western limit following a rapid geostrophic alteration owing to the optimum initial temperature and brininess perturbations. The results suggest that the nonnormality of the ocean dynamics may efficiently create large tropical SST unevenness on interannual clock scales in the Atlantic without the engagement of air-sea processes or the meridional revolutionize circulation. An optimum abstruse initial salt disruption of 0.1 ppt located near the western boundary can result in a tropical SST anomaly of approximately 0.45°C after closely four years, assuming the dynamics are analogue. possible mechanism for exciting such deeply perturbations are discussed. While this study is motivated by tropical Atlantic SST unevenness, its relevance to other basins is not excluded. The optimum initial conditions leading to the tropical SST anomalies ‘ growth are obtained by solving a generalized eigenvalue trouble. The evaluation of the optimals is achieved by using the Massachusetts Institute of Technology general circulation exemplar ( MITgcm ) tangent analogue and adjoint models as well the the Arnoldi Package ( ARPACK ) software for solving large-scale eigenvalue problems. Keywords: Dynamics, Interannual varia, Sea surface temperature ECCO Products Used: adjointURL: http://journals.ametsoc.org/doi/abs/10.1175/2009JPO4196.1 Other URLs:
Wunsch, Carl (2010). Variability of the Indo-Pacific Ocean exchanges, Dynamics of Atmospheres and Oceans, 2 (50), 157-173, 10.1016/j.dynatmoce.2009.12.001. Title: Variability of the Indo-Pacific Ocean exchanges Type: Journal article Publication: Dynamics of Atmospheres and Oceans Author(s): Wunsch, Carl Year: 2010 Formatted Citation: Wunsch, C., 2010 : unevenness of the Indo-Pacific Ocean exchanges. Dynamics of Atmospheres and Oceans, 50 ( 2 ), 157-173, doi:10.1016/j.dynatmoce.2009.12.001 Abstract: The ECCO-GODAE global estimate of the ocean circulation 1992-2007 is analyzed in the region of the indonesian Throughflow ( ITF ), including the southern Ocean flow south of Australia. General characteristics are an intense month-to-month make noise, only weak trends, and an important annual bicycle ( which is not the focus of care ). apart from the details of the unresolved flows within the diverse passages, and good on the equator, the region and its large-scale climate effects appears to be accurately diagnosed by large-scale geostrophic balance, so that the ITF can be calculated either from the upriver or the downriver balanced flow ( but no simpleton reference point charge can be defined ). The INSTANT program occurs during a more or less typical three-year period. Indications of response to the large 1997-1998 El Niño are fallible. Keywords: ITF, Indonesian Seas, Ocean general circulation, State appraisal ECCO Products Used: ECCO-V3URL: http://www.sciencedirect.com/science/article/pii/S0377026509000712 Other URLs:
Baehr, J (2010). Influence of the 26 degrees N RAPID-MOCHA Array and Florida Current Cable Observations on the ECCO-GODAE State Estimate, Journal of Physical Oceanography, 5 (40), 865-879, 10.1175/2009jpo4118.1. Title: Influence of the 26 degrees N RAPID-MOCHA Array and Florida Current Cable Observations on the ECCO-GODAE State Estimate Type: Journal article Publication: Journal of Physical Oceanography Author(s): Baehr, J Year: 2010 Formatted Citation: Baehr, J., 2010 : influence of the 26 degrees N RAPID-MOCHA Array and Florida Current Cable Observations on the ECCO-GODAE State Estimate. Journal of Physical Oceanography, 40 ( 5 ), 865-879, doi:10.1175/2009jpo4118.1 Abstract: The incorporation of local temperature and salt observations from the rapid Climate Change-Meridional Overturning Circulation and Heatflux Array ( RAPID-MOCHA ), equally well as the cable estimates of bulk transportation in the Florida Current ( FC ), is tested in the Estimating the Circulation and Climate of the Ocean-Global Ocean Data Assimilation Experiment ( ECCO-GODAE ) estimate system for their impact on the estimate of the meridional overturn circulation ( MOC ) and the meridional heat transmit in the Atlantic. An experimental frame-up covering the first deployment menstruation of RAPID-MOCHA from March 2004 to March 2005 is used to test different strategies for incorporating these datasets. Incorporating both monthly means of the FC data and monthly means of the RAPID-MOCHA temperature and brininess measurements at the eastern and western boundaries of the washbasin as an experimental constraint in a 1-yr experiment results in an adaptation to the citation appraisal, which does not include these datasets, of approximately 1 Sv ( 1 Sv equivalent to 10 ( 6 ) thousand ( 3 ) randomness ( -1 ) ) in the MOC at 26 degrees N and the adjacent latitudes ( approximately +/- 15 degrees ), with a larger north branch of the MOC above 1000 m, compensated by a larger flow in the southerly outgrowth of the MOC between approximately 2000 and 3000 m. The meridional heat conveyance from 26 degrees N to near 40 degrees N is approximately 0.05 PW larger than in the reference book experiment. Keywords: 26.5-degrees-n, adjoint, combining argo profiles, construction, heat-transport, meridional overturning circulation, model, north-atlantic, ocean, variability ECCO Products Used: ECCO-V2 URL: Other URLs:
Dickey, J O; Marcus, S L; de Viron, O (2010). Closure in the Earth’s angular momentum budget observed from subseasonal periods down to four days: No core effects needed, Geophysical Research Letters (37), 10.1029/2009gl041118. Title: settlement in the Earth ’ s angular momentum budget observed from subseasonal periods depressed to four days : No core effects needed Type: Journal article Publication: Geophysical Research Letters Author(s): Dickey, J O ; Marcus, S L ; de Viron, O Year: 2010 Formatted Citation: Dickey, J. O., S. L. Marcus, and O. de Viron, 2010 : blockage in the Earth ‘s angular momentum budget observed from subseasonal periods down to four days : No core effects needed. Geophys. Res. Lett., 37, doi:10.1029/2009gl041118 Abstract: Short time period variations in the Earth ‘s rotation rate, length-of-day ( LOD ), are driven chiefly by the atmosphere with smaller contributions by the oceans. former studies have noted a lag of atmospheric angular momentum ( AAM ) with LOD that would imply another beginning. We examine AAM from the European Centre for Medium-Range Weather Forecasts ( ECMWF ) and the National Centers for Environmental Prediction ( NCEP ) reanalysis series, along with oceanic angular momentum ( OAM ) from the ECCO consortium ; land hydrological effects made no discernible affect. The NCEP reanalysis together with OAM produces a meaning lag with LOD, while the ECMWF reanalysis AAM with OAM shows no phase lag. We find significant coherence with LOD variations down to periods of 4 days ; coherence losses at shorter periods likely rise from the turn back barometer assumption and unmodeled dynamic processes. Thus the inclusion of core effects is not needed to balance the axial angular momentum budget on sub-seasonal prison term scales. citation : dickey, J. O., S. L. Marcus, and O. de Viron ( 2010 ), Closure in the Earth ‘s angular momentum budget observed from subseasonal periods devour to four days : No core effects needed, Geophys. Res. Lett., 37, L03307, department of the interior : 10.1029/2009GL041118. Keywords: distance, ocean, topography, variable rotation ECCO Products Used: ECCO-KFS URL: Other URLs:
Heimbach, P; Forget, G; Ponte, R M; Wunsch, C; Balmaseda, M; Awaji, T; Baehr, J; Behringer, D; Carton, J; Ferry, N; Fischer, A; Fukumori, I; Giese, B; Haines, K; Harrison, E; Hernandez, F; Kamachi, M; Keppenne, C; Kohl, A; Lee, T; Menemenlis, Dimitris; Oke, P; Remy, E; Rienecker, M; Rosati, A; Smith, D; Speer, K; Stammer, D; Weaver, A (2010). Observational Requirements for Global-Scale Ocean Climate Analysis: Lessons from Ocean State Estimation, Proceedings of OceanObs’09: Sustained Ocean Observations and Information for Society (Vol. 2), 10.5270/OceanObs09.cwp.42. Title: Observational Requirements for Global-Scale Ocean Climate analysis : Lessons from Ocean State Estimation Type: Conference Proceedings Publication: Proceedings of OceanObs’09 : Sustained Ocean Observations and Information for Society ( Vol. 2 ) Author(s): Heimbach, P ; Forget, G ; Ponte, R M ; Wunsch, C ; Balmaseda, M ; Awaji, T ; Baehr, J ; Behringer, D ; Carton, J ; Ferry, N ; Fischer, A ; Fukumori, I ; Giese, B ; Haines, K ; Harrison, E ; Hernandez, F ; Kamachi, M ; Keppenne, C ; Kohl, A ; Lee, T ; Menemenlis, Dimitris ; Oke, P ; Remy, E ; Rienecker, M ; Rosati, A ; Smith, D ; Speer, K ; Stammer, D ; Weaver, A Year: 2010 Formatted Citation: Heimbach, P. and Coauthors, 2010 : experimental Requirements for Global-Scale Ocean Climate analysis : Lessons from Ocean State Estimation. Proceedings of OceanObs’09 : Sustained Ocean Observations and Information for Society ( Vol. 2 ), J. Hall, D. E. Harrison, and D. Stammer, Eds. ESA Publication WPP-306, Venice, Italy, 21-25 September 2009 doi:10.5270/OceanObs09.cwp.42. Abstract: Keywords: ECCO Products Used: ECCO-V2 URL: Other URLs:
Scotti, Alberto (2010). Large eddy simulation in the ocean, International Journal of Computational Fluid Dynamics, 10 (24), 393-406, 10.1080/10618562.2010.522527. Title: Large eddy pretense in the ocean Type: Journal article Publication: International Journal of Computational Fluid Dynamics Author(s): Scotti, Alberto Year: 2010 Formatted Citation: Scotti, A., 2010 : large eddy simulation in the ocean. International Journal of Computational Fluid Dynamics, 24 ( 10 ), 393-406, doi:10.1080/10618562.2010.522527 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://www.tandfonline.com/doi/abs/10.1080/10618562.2010.522527 Other URLs:
García-García, D.; Chao, B. F.; Boy, J. P. (2010). Steric and mass-induced sea level variations in the Mediterranean Sea revisited, Journal of Geophysical Research: Oceans, 12 (115), 1-14, 10.1029/2009JC005928. Title: Steric and mass-induced sea level variations in the Mediterranean Sea revisited Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): García-García, D. ; Chao, B. F. ; Boy, J. P. Year: 2010 Formatted Citation: García-García, D., B. F. Chao, and J. P. Boy, 2010 : Steric and mass-induced sea level variations in the Mediterranean Sea revisited. J. Geophys. Res. Ocean., 115 ( 12 ), 1-14, doi:10.1029/2009JC005928 Abstract: The full sea level variation ( SLV ) is the combination of steric and mass-induced SLV, whose demand shares are key to understanding the oceanic response to climate system changes. entire SLV can be observed by radar altimetry satellites such as TOPEX/POSEIDON and Jason 1/2. The steric SLV can be computed through temperature and salt profiles from in situ measurements or from ocean general circulation models ( OGCM ), which can assimilate the said observations. The mass-induced SLV can be estimated from its time-variable gravity ( TVG ) signals. We revisit this problem in the Mediterranean Sea estimating the observed, steric, and mass-induced SLV, for the latter we analyze the latest TVG datum plant from the GRACE ( Gravity Recovery and Climate Experiment ) satellite mission launched in 2002, which is 3.5 times longer than in former studies, with the application of a two-stage anisotropic trickle to reduce the randomness in high-degree and -order ball-shaped harmonic coefficients. We confirm that the intra-annual total SLV are only produced by body of water mass changes, a fact explained in the literature as a leave of the wind airfield around the Gibraltar Strait. The steric SLV estimated from the residual of “ altimetry minus GRACE ” agrees in phase with that estimated from OGCMs and in situ measurements, although showing a higher amplitude. The net water system fluxes through both the straits of Gibraltar and Sicily have besides been estimated consequently. copyright 2010 by the American Geophysical Union. Keywords: ECCO Products Used: ECCO-KFS URL: Other URLs:
Heimbach, Patrick; Menemenlis, Dimitris; Losch, Martin; Campin, Jean-Michel; Hill, Chris (2010). On the formulation of sea-ice models. Part 2: Lessons from multi-year adjoint sea-ice export sensitivities through the Canadian Arctic Archipelago, Ocean Modelling, 1-2 (33), 145-158, 10.1016/j.ocemod.2010.02.002. Title: On the formulation of sea-ice models. Part 2 : Lessons from multi-year adjoint sea-ice export sensitivities through the Canadian Arctic Archipelago Type: Journal article Publication: Ocean Modelling Author(s): Heimbach, Patrick ; Menemenlis, Dimitris ; Losch, Martin ; Campin, Jean-Michel ; Hill, Chris Year: 2010 Formatted Citation: Heimbach, P., D. Menemenlis, M. Losch, J. Campin, and C. Hill, 2010 : On the formulation of sea-ice models. Part 2 : Lessons from multi-year adjoint sea-ice export sensitivities through the Canadian Arctic Archipelago. Ocean Modelling, 33 ( 1-2 ), 145-158, doi:10.1016/j.ocemod.2010.02.002 Abstract: The adjoint of an ocean general circulation model is at the heart of the ocean state estimate system of the Estimating the Circulation and Climate of the Ocean ( ECCO ) project. As separate of an ongoing campaign to extend ECCO to a coupled ocean/sea-ice estimate system, a moral force and thermodynamic sea-ice model has been developed for the Massachusetts Institute of Technology general circulation model ( MITgcm ). One key requirement is the ability to generate, by means of automatic differentiation ( AD ), tangent linear ( TLM ) and adjoint ( ADM ) model code for the match MITgcm ocean/sea-ice system. This second depart of a bipartite paper describes aspects of the adjoint model. The adjoint ocean and sea-ice model is used to calculate transient sensitivities of solid ( internal-combustion engine and snow ) fresh water export through Lancaster Sound in the Canadian Arctic Archipelago ( CAA ). The adjoint state of matter provides a complementary color opinion of the dynamics. In finical, the ephemeral, multi-year sensitivity patterns reflect dominant pathways and propagation timescales through the CAA as resolved by the model, therefore shedding inner light on causal relationships, in the model, across the Archipelago. The computational monetary value of inferring such causal relationships from forward model diagnostics entirely would be prohibitive. The function of the demand model trajectory around which the adjoint is calculated ( and consequently of the exactness of the adjoint ) is exposed through calculations using free-slip v no-slip lateral limit conditions. effective ice thickness, sea coat temperature, and haste sensitivities, are discussed in detail as examples of the coupled sea-ice/ocean and atmospheric force control distance. To test the dependability of the adjoint, finite-difference perturbation experiments were performed for each of these elements and the cost perturbations were compared to those “ predicted ” by the adjoint. overall, noteworthy qualitative and quantitative agreement is found. In particular, the adjoint correctly “ predicts ” a seasonal sign change in precipitation sensitivities. A physical mechanism for this sign change is presented. The handiness of the pair adjoint opens up the prospect for adjoint-based couple ocean/sea-ice express estimate. Keywords: Adjoint model, canadian Arctic Archipelago, Coupled ocean and sea-ice model, numeral sea-ice model, Sea-ice export, Sensitivities, State appraisal, Viscous-plastic rheology ECCO Products Used: ECCO2 ; SeaIceURL: http://www.sciencedirect.com/science/article/pii/S1463500310000119 Other URLs:
Freeman, Anthony; Zlotnicki, Victor; Liu, Tim; Holt, Benjamin; Kwok, Ron; Yueh, Simon; Vazquez, Jorge; Siegel, David; Lagerloef, Gary (2010). Ocean Measurements from Space in 2025, Oceanography, 4 (23), 144-161, 10.5670/oceanog.2010.12. Title: Ocean Measurements from Space in 2025 Type: Journal article Publication: oceanography Author(s): Freeman, Anthony ; Zlotnicki, Victor ; Liu, Tim ; Holt, Benjamin ; Kwok, Ron ; Yueh, Simon ; Vazquez, Jorge ; Siegel, David ; Lagerloef, Gary Year: 2010 Formatted Citation: Freeman, A. and Coauthors, 2010 : ocean Measurements from Space in 2025. Oceanography, 23 ( 4 ), 144-161, doi:10.5670/oceanog.2010.12 Abstract: Keywords: ECCO Products Used: ECCO2 ; SeaIceURL: http://dx.doi.org/10.5670/oceanog.2010.12 Other URLs:
Ito, T.; Woloszyn, M.; Mazloff, M. (2010). Anthropogenic carbon dioxide transport in the Southern Ocean driven by Ekman flow, Nature, 10.1038/nature08687. Title: Anthropogenic carbon dioxide conveyance in the Southern Ocean driven by Ekman flow Type: Journal article Publication: nature Author(s): Ito, T. ; Woloszyn, M. ; Mazloff, M. Year: 2010 Formatted Citation: Ito, T., M. Woloszyn, and M. Mazloff, 2010 : anthropogenetic carbon paper dioxide transmit in the Southern Ocean driven by Ekman flow. nature, doi:10.1038/nature08687 Abstract: Nature 463, 80 ( 2010 ). doi:10.1038/nature08687 Keywords: ECCO Products Used: SOSE URL: Other URLs:
Dushaw, Brian D.; Au, Whitlow; Beszczynska-Möller, Agnieszka; Brainard, Rusty; Cornuelle, Bruce D; Duda, Tim; Dzieciuch, Matthew; Forbes, Andrew; Freitag, Lee; Gascard, Jean-Claude; Gavrilov, Alexander; Gould, John; Howe, Bruce; Jayne, Steven R; Johannessen, Ola M; Lynch, James F; Martin, David; Menemenlis, Dimitris; Mikhalevsky, Peter; Miller, James H; Moore, Sue E; Munk, Walter H; Nystuen, Jeff; Odom, Robert I; Orcutt, John; Rossby, Tom; Sagen, Hanne; Sandven, Stein; Simmen, Jeff; Skarsoulis, Emmanuel; Southall, Brandon; Stafford, Kate; Stephen, Ralph; Vigness-Raposa, Kathleen J; Vinogradov, Sergei; Wong, Kevin B; Worcester, Peter F; Wunsch, Carl (2010). A global ocean acoustic observing network, Proceedings of OceanObs’09: Sustained Ocean Observations and Information for Society (2), 10.5270/OceanObs09.cwp.25. Title: A ball-shaped ocean acoustic observe network Type: Conference Proceedings Publication: Proceedings of OceanObs’09 : Sustained Ocean Observations and Information for Society Author(s): Dushaw, Brian D. ; Au, Whitlow ; Beszczynska-Möller, Agnieszka ; Brainard, Rusty ; Cornuelle, Bruce D ; Duda, Tim ; Dzieciuch, Matthew ; Forbes, Andrew ; Freitag, Lee ; Gascard, Jean-Claude ; Gavrilov, Alexander ; Gould, John ; Howe, Bruce ; Jayne, Steven R ; Johannessen, Ola M ; Lynch, James F ; Martin, David ; Menemenlis, Dimitris ; Mikhalevsky, Peter ; Miller, James H ; Moore, Sue E ; Munk, Walter H ; Nystuen, Jeff ; Odom, Robert I ; Orcutt, John ; Rossby, Tom ; Sagen, Hanne ; Sandven, Stein ; Simmen, Jeff ; Skarsoulis, Emmanuel ; Southall, Brandon ; Stafford, Kate ; Stephen, Ralph ; Vigness-Raposa, Kathleen J ; Vinogradov, Sergei ; Wong, Kevin B ; Worcester, Peter F ; Wunsch, Carl Year: 2010 Formatted Citation: Dushaw, B. D. and Coauthors, 2010 : A ball-shaped ocean acoustic observe network. Proceedings of OceanObs’09 : Sustained Ocean Observations and Information for Society, J. Hall, D. E. Harrison, and D. Stammer, Eds. ESA Publication WPP-306, Venice, Italy, 21-25 September 2009, 2 doi:10.5270/OceanObs09.cwp.25. Abstract: Keywords: ECCO Products Used: ECCO-KFS ; ECCO2 URL: Other URLs:
Chao, Benjamin F.; Yan, Haoming (2010). Relation between length-of-day variation and angular momentum of geophysical fluids, Journal of Geophysical Research, B10 (115), B10417, 10.1029/2009JB007024. Title: Relation between length-of-day variation and angular momentum of geophysical fluids Type: Journal article Publication: Journal of Geophysical Research Author(s): Chao, Benjamin F. ; Yan, Haoming Year: 2010 Formatted Citation: Chao, B. F., and H. Yan, 2010 : relation between length-of-day mutant and angular momentum of geophysical fluids. Journal of Geophysical Research, 115 ( B10 ), B10417, doi:10.1029/2009JB007024 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: http://doi.wiley.com/10.1029/2009JB007024 Other URLs:
Forget, G (2010). Mapping Ocean Observations in a Dynamical Framework: A 2004-06 Ocean Atlas, Journal of Physical Oceanography, 6 (40), 1201-1221, 10.1175/2009jpo4043.1. Title: Mapping Ocean Observations in a dynamic framework : A 2004-06 Ocean Atlas Type: Journal article Publication: Journal of Physical Oceanography Author(s): Forget, G Year: 2010 Formatted Citation: Forget, G., 2010 : Mapping Ocean Observations in a dynamic model : A 2004-06 Ocean Atlas. Journal of Physical Oceanography, 40 ( 6 ), 1201-1221, doi:10.1175/2009jpo4043.1 Abstract: This wallpaper exploits a new experimental atlas for the near-global ocean for the best-observed 3-yr period from December 2003 through November 2006. The atlas consists of map observations and derive quantities. in concert they form a full theatrical performance of the ocean submit and its seasonal worker cycle. The map observations are primarily altimeter data, satellite SST, and Argo profiles. GCM interjection is used to synthesize these datasets, and the resulting atlas is a fairly close up match to each one of them. For observe quantities specially, the atlas is a hardheaded mean to evaluate free-running GCM simulations and to put discipline experiments into a broader context. The atlas-derived quantities include the middepth dynamic topography, vitamin a well as ocean fluxes of heat and salt fresh water. The atlas is publicly available on-line ( www.ecco-group.org ). This composition provides insight into two oceanographic problems that are the capable of vigorous ongoing research. First, regarding ocean circulation estimates, it can be inferred that the RMS uncertainty in mod coat dynamic topography ( SDT ) estimates is merely on the ordain of 3.5 centimeter at scales beyond 300 km. In that context, it is found that assumptions of “ reference-level ” moral force topography may yield significant errors ( of order 2.2 curium or more ) in SDT estimates using in situ data. Second, in the position of mode water system investigations, it is estimated that ocean fluxes ( advection plus mixing ) largely lend to the seasonal variation in heat content and freshwater/salt message. Hence, representing the seasonal bicycle as a simple interplay of air ocean flux and ocean repositing would not yield a meaningful approximation. For the strategic arms limitation talks fresh water seasonal worker cycle particularly, contributions from ocean fluxes normally exceed direct air sea flow contributions. Keywords: adjoint, south-polar circumpolar current, combining argo, depth circulation, floats, general-circulation model, hydrography, north-atlantic ocean, profiles, transport, unevenness ECCO Products Used: OCCA URL: Other URLs:
Bragg, Jason G; Dutkiewicz, Stephanie; Jahn, Oliver; Follows, Michael J.; Chisholm, Sallie W (2010). Modeling Selective Pressures on Phytoplankton in the Global Ocean, PLoS ONE, 3 (5), e9569, 10.1371/journal.pone.0009569. Title: Modeling Selective Pressures on Phytoplankton in the Global Ocean Type: Journal article Publication: PLoS ONE Author(s): Bragg, Jason G ; Dutkiewicz, Stephanie ; Jahn, Oliver ; Follows, Michael J. ; Chisholm, Sallie W Year: 2010 Formatted Citation: Bragg, J. G., S. Dutkiewicz, O. Jahn, M. J. Follows, and S. W. Chisholm, 2010 : Modeling selective Pressures on Phytoplankton in the Global Ocean. PLoS ONE, 5 ( 3 ), e9569, doi:10.1371/journal.pone.0009569 Abstract: Our view of nautical microbes is transforming, as culture-independent methods facilitate rapid portrayal of microbial diversity. It is difficult to assimilate this information into our sympathy of marine microbe ecology and development, because their distributions, traits, and genomes are shaped by forces that are building complex and dynamic. hera we incorporate divers forces-physical, biogeochemical, ecological, and mutational-into a ball-shaped ocean model to study selective pressures on a simple trait in a widely distributed lineage of picophytoplankton : the nitrogen use abilities of Synechococcus and Prochlorococcus cyanobacteria. Some Prochlorococcus ecotypes have lost the ability to use nitrate, whereas their close relatives, marine Synechococcus, typically retain it. We impose mutations for the loss of nitrogen use abilities in model picophytoplankton, and ask : in which parts of the ocean are mutants most disadvantaged by losing the ability to use nitrate, and in which parts are they least disadvantaged ? Our model predicts that this selective disadvantage is smallest for picophytoplankton that live in tropical regions where Prochlorococcus are abundant in the real number ocean. conversely, the selective disadvantage of losing the ability to use nitrate is larger for modeled picophytoplankton that live at higher latitudes, where Synechococcus are abundant. In regions where we expect Prochlorococcus and Synechococcus populations to cycle seasonally in the real ocean, we find that model ecotypes with seasonal worker population dynamics exchangeable to Prochlorococcus are less disadvantaged by losing the ability to use nitrate than model ecotypes with seasonal population dynamics similar to Synechococcus. The mannequin predictions for the selective advantage associated with nitrate practice are broadly consistent with the distribution of this ability among marine picocyanobacteria, and at fine scales, can provide insights into interactions between temporally varying ocean processes and selective pressures that may be difficult or impossible to study by early means. More by and large, and possibly more importantly, this survey introduces an access for testing hypotheses about the processes that underlie genetic variation among marine microbes, embedded in the dynamic physical, chemical, and biological forces that generate and shape this diversity. Keywords: biogeography, cyanobacteria, dynamics, forms, genome, lineages, marine synechococcus, nitrate assimilation, nitrogen, prochlorococcus ecotypes ECCO Products Used: ECCO-V2URL: https://dx.plos.org/10.1371/journal.pone.0009569 Other URLs:
Baruque, Bruno; Corchado, Emilio; Mata, Aitor; Corchado, Juan M. (2010). A forecasting solution to the oil spill problem based on a hybrid intelligent system, Information Sciences, 10 (180), 2029-2043, 10.1016/j.ins.2009.12.032. Title: A prediction solution to the oil spill problem based on a hybrid intelligent system Type: Journal article Publication: Information Sciences Author(s): Baruque, Bruno ; Corchado, Emilio ; Mata, Aitor ; Corchado, Juan M. Year: 2010 Formatted Citation: Baruque, B., E. Corchado, A. Mata, and J. M. Corchado, 2010 : A prediction solution to the oil spill trouble based on a hybrid intelligent organization. information Sciences, 180 ( 10 ), 2029-2043, doi:10.1016/j.ins.2009.12.032 Abstract: Keywords: ECCO Products Used: ECCO2URL: https://linkinghub.elsevier.com/retrieve/pii/S0020025510000113 Other URLs:
Tamisiea, M E; Hill, E M; Ponte, R M; Davis, J L; Velicogna, I; Vinogradova, N T (2010). Impact of self-attraction and loading on the annual cycle in sea level, Journal of Geophysical Research: Oceans, C7 (115), 10.1029/2009JC005687. Title: Impact of self-attraction and loading on the annual motorbike in ocean horizontal surface Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Tamisiea, M E ; Hill, E M ; Ponte, R M ; Davis, J L ; Velicogna, I ; Vinogradova, N T Year: 2010 Formatted Citation: Tamisiea, M. E., E. M. Hill, R. M. Ponte, J. L. Davis, I. Velicogna, and N. T. Vinogradova, 2010 : impingement of self-attraction and load on the annual motorbike in ocean level. J. Geophys. Res. Ocean., 115 ( C7 ), doi:10.1029/2009JC005687 Abstract: The annual exchange of body of water between the continents and oceans is observed by GPS, hydrometry, and altimetry. however, the ball-shaped average amplitude of this annual cycle ( observe amplitude of ∼8 millimeter ) is not congressman of the effects that would be observed at individual tide gauges or at ocean bottom pressure recorders because of self-attraction and loading effects ( SAL ). In this paper, we examine the spatial variation of sea level switch caused by the three main components that load the Earth and contribute to the body of water motorbike : hydrology ( including snow ), the atmosphere, and the moral force ocean. The SAL effects cause annual amplitudes at tide gauges ( modeled here with a global average of ∼9 millimeter ) to vary from less than 2 millimeter to more than 18 mm. We find a discrepancy reduction ( global average of 3 to 4 % ) after removing the model time serial from a global adjust of tide gauges. We conclude that SAL effects are significant in places ( for example, the south central Pacific and coastal regions in Southeast Asia and west cardinal Africa ) and should be considered when interpreting these data sets and using them to constrain ocean circulation models. Keywords: 1223 Geodesy and Gravity : Ocean/Earth/atmosphere/h, 4227 oceanography : general : Diurnal, seasonal worker, and, 4556 oceanography : physical : Sea level : variations, annual cycle, sea level, self-attraction and load ECCO Products Used: URL: http://dx.doi.org/10.1029/2009JC005687 Other URLs:
Hunke, Elizabeth C. (2010). Thickness sensitivities in the CICE sea ice model, Ocean Modelling, 3-4 (34), 137-149, 10.1016/j.ocemod.2010.05.004. Title: Thickness sensitivities in the CICE sea ice model Type: Journal article Publication: Ocean Modelling Author(s): Hunke, Elizabeth C. Year: 2010 Formatted Citation: Hunke, E. C., 2010 : thickness sensitivities in the CICE sea ice model. Ocean Modelling, 34 ( 3-4 ), 137-149, doi:10.1016/j.ocemod.2010.05.004 Abstract: Passive microwave satellite observations of methamphetamine extent and concentration form the foundation of sea ice model evaluations, due to their wide spatial coverage and decades-long handiness. Observations related to other model quantities are reasonably more express but increasing as interest in high-latitude processes intensifies. Sea ice rink thickness, long judged a critical measure in the physical arrangement, is now being scrutinized more closely in ocean ice model simulations as more expansive measurements become available. While albedo is often the first parameter chosen by modelers to adjust simulated ice thickness, this newspaper explores a set of less big parameters to which thickness is besides quite sensitive. These include parameters associated with sea frosting conduction, mechanical redistribution, oceanic heat blend, and ice-ocean active stress, in addition to shortwave radiation. multiple combinations of parameter values can produce the same beggarly ice thickness using the Los Alamos Sea Ice Model, CICE. One of these “ tuned ” simulations is compared with a assortment of experimental data sets in both hemispheres. While change shape ice rink area compares well with the limit observations available for ridged ice rink, thickness measurements differ such that the model can not agree with all of them simultaneously. Albedo and ice-ocean moral force parameters that affect the twist of the ice relative to the ocean currents have the largest effect on internal-combustion engine thickness, of the parameters tested here. That is, ocean ice thickness is highly sensitive to changes in external coerce by the atmosphere or ocean, and therefore serves as a sensitive diagnostic for high-latitude change. © 2010 Elsevier Ltd. Keywords: Albedo, Antarctic, Arctic, Conductivity, Modeling, Ridging, Sea internal-combustion engine thickness ECCO Products Used: ECCO2URL: http://dx.doi.org/10.1016/j.ocemod.2010.05.004 Other URLs:
Song, Hajoon; Hoteit, Ibrahim; Cornuelle, Bruce D.; Subramanian, Aneesh C. (2010). An Adaptive Approach to Mitigate Background Covariance Limitations in the Ensemble Kalman Filter, Monthly Weather Review, 10.1175/2010MWR2871.1. Title: An adaptive approach to Mitigate Background Covariance Limitations in the Ensemble Kalman Filter Type: Journal article Publication: Monthly Weather Review Author(s): Song, Hajoon ; Hoteit, Ibrahim ; Cornuelle, Bruce D. ; Subramanian, Aneesh C. Year: 2010 Formatted Citation: Song, H., I. Hoteit, B. D. Cornuelle, and A. C. Subramanian, 2010 : An adaptive approach to Mitigate Background Covariance Limitations in the Ensemble Kalman Filter. Monthly Weather Review, doi:10.1175/2010MWR2871.1 Abstract: A new approach is proposed to address the background covariance limitations arising from undersampled ensembles and unaccounted model errors in the ensemble Kalman percolate ( EnKF ). The method acting enhances the representativeness of the EnKF ensemble by augmenting it with new members chosen adaptively to add missing information that prevents the EnKF fromfully fitting the data to the ensemble. The vectors to be added are obtained by back projecting the residuals of the observation misfits from the EnKF analysis dance step onto the state space. The back projection is done using an optimum interpolation ( OI ) outline based on an estimated covariance of the subspace missing from the ensemble. In the experiments reported here, the OI uses a stationary backdrop covariance matrix, as in the loanblend EnKF-three-dimensional variational data assimilation ( 3DVAR ) approach, but the result correction is included as a raw corps de ballet member rather of being added to all existing ensemble members. The adaptive approach is tested with the Lorenz-96 model. The loanblend EnKF-3DVAR is used as a benchmark to evaluate the performance of the adaptive approach. Assimilation experiments suggest that the new adaptive system importantly improves the EnKF behavior when it suffers from small size ensembles and neglect model errors. It was further found to be competitive with the hybrid EnKF-3DVAR approach path, depending on ensemble size and data coverage. Keywords: ECCO Products Used: SOSE URL: Other URLs:
Barton, Andrew D; Dutkiewicz, Stephanie; Flierl, Glenn; Bragg, Jason; Follows, Michael J. (2010). Patterns of Diversity in Marine Phytoplankton, Science, 5972 (327), 1509-1511, 10.1126/science.1184961. Title: Patterns of Diversity in Marine Phytoplankton Type: Journal article Publication: science Author(s): Barton, Andrew D ; Dutkiewicz, Stephanie ; Flierl, Glenn ; Bragg, Jason ; Follows, Michael J. Year: 2010 Formatted Citation: Barton, A. D., S. Dutkiewicz, G. Flierl, J. Bragg, and M. J. Follows, 2010 : Patterns of Diversity in Marine Phytoplankton. Science, 327 ( 5972 ), 1509-1511, doi:10.1126/science.1184961 Abstract: Spatial diverseness gradients are a permeant sport of life on Earth. We examined a global ocean circulation, biogeochemistry, and ecosystem exemplary that indicated a decrease in phytoplankton diverseness with increasing latitude, consistent with observations of many marine and tellurian taxonomic group. In the model subpolar oceans, seasonal worker variability of the environment led to competitive excommunication of phytoplankton with slower growth rates and lower diversity. The relatively unaccented seasonality of the stable subtropical and tropical oceans in the ball-shaped model enabled long ejection time scales and drawn-out coexistence of multiple phytoplankton with comparable fitness. Superimposed on the worsen in diversity seen from equator to pole were “ hot spots ” of enhance diversity in some regions of energetic ocean circulation, which reflected lateral dispersion. Keywords: ECCO Products Used: ECCO-V2URL: http://science.sciencemag.org/content/sci/327/5972/1509.full.pdf Other URLs: hypertext transfer protocol : //www.sciencemag.org/cgi/doi/10.1126/science.1184961
Fenty, Ian Gouverneur (2010). State estimation of the Labrador Sea with a coupled sea ice-ocean adjoint model. Title: State estimate of the Labrador Sea with a conjugate sea ice-ocean adjoint model Type: thesis Publication: Author(s): Fenty, Ian Gouverneur Year: 2010 Formatted Citation: Fenty, I. G., 2010 : State estimate of the Labrador Sea with a coupled sea ice-ocean adjoint model., Ph.D., 277 pp. hypertext transfer protocol : //hdl.handle.net/1721.1/59575. Abstract: Keywords: ECCO Products Used: ECCO2 ; SeaIceURL: http://hdl.handle.net/1721.1/59575 Other URLs:
Borreguero, Laura Herraiz; Mottram, Ruth; Cvijanovic, Ivana (2010). Discussing Progress in Understanding Ice Sheet-Ocean Interactions: Advanced Climate Dynamics Course 2010: Ice Sheet-Ocean Interactions; Lyngen, Norway, 8-19 June 2010, Eos, Transactions American Geophysical Union, 45 (91), 419, 10.1029/2010EO450006. Title: Discussing Progress in Understanding Ice Sheet-Ocean Interactions : Advanced Climate Dynamics Course 2010 : Ice Sheet-Ocean Interactions ; Lyngen, Norway, 8-19 June 2010 Type: Journal article Publication: Eos, Transactions American Geophysical Union Author(s): Borreguero, Laura Herraiz ; Mottram, Ruth ; Cvijanovic, Ivana Year: 2010 Formatted Citation: Borreguero, L. H., R. Mottram, and I. Cvijanovic, 2010 : Discussing Progress in Understanding Ice Sheet-Ocean Interactions : Advanced Climate Dynamics Course 2010 : Ice Sheet-Ocean Interactions ; Lyngen, Norway, 8-19 June 2010. Eos, Transactions American Geophysical Union, 91 ( 45 ), 419, doi:10.1029/2010EO450006 Abstract: Sea level raise is one of many expected consequences of climate switch, with accompanying complex social and economic challenges. major uncertainties in sea flush lift projections relate to the response of ice rink sheets to sea grade rise and the key function that interactions with the ocean may play. Recognizing that credibly no comprehensive course of study presently exists at any individual university that covers this novel and interdisciplinary topic, the Advanced Climate Dynamics Courses ( ACDC ) team brought in concert a group of 40 international students, postdoc, and lecturers from divers backgrounds to provide an overview and discussion of state-of-the-art research into ocean-ice plane interactions and to propose inquiry priorities for the next decade. Among the key issues addressed were small-scale processes near the Antarctic ice shelves and Greenland wall socket glaciers. These are fast changing components in the climate system, often related to large-scale forcings ( atmospheric teleconnections and oceanic circulation ). advance in understanding and modeling is hampered by the image of scales involved, the miss of observations, and the difficulties in confining, format, and providing adequate boundary conditions for frosting sheet and ocean models. Keywords: 0726 Ice sheets, 0728 Ice shelves, 1223 Ocean/Earth/atmosphere/hydrosphere/cryosphere, 4207 Arctic and Antarctic oceanography, climate dynamics, ocean-ice sheet interactions, ocean charge, summer course ECCO Products Used: URL: http://dx.doi.org/10.1029/2010EO450006 Other URLs:
Mata Conde, Aitor (2010). Organization based multiagent architecture for distributed environments. Title: Organization based multiagent architecture for distributed environments Type: thesis Publication: Author(s): Mata Conde, Aitor Year: 2010 Formatted Citation: Mata Conde, A., 2010 : organization based multiagent computer architecture for circulate environments., 355 pp. hypertext transfer protocol : //hdl.handle.net/10366/76526. Abstract: Distributed environments represent a complex plain in which give solutions should be compromising and include significant adaptation capabilities. These environments are related to problems where multiple users and devices may interact, and where simple and local solutions could possibly generate good results, but may not be effective with regards to use and interaction. There are many techniques that can be employed to face this kind of problems, from CORBA to multi-agent systems, passing by web-services and SOA, among others. All those methodologies have their advantages and disadvantages that are properly analyzed in this documents, to finally explain the new architecture presented as a solution for circulate environment problems. The new computer architecture for solving complex solutions in distribute environments presented here is called OBaMADE : organization Based Multiagent Architecture for Distributed Environments. It is a multiagent architecture based on the organizations of agents prototype, where the agents in the architecture are structured into organizations to improve their organizational capabilities. The reasoning power of the architecture is based on the Case-Based Reasoning methology, being implemented in a inner organization that uses agents to create services to solve the external request made by the users. The OBaMADE architecture has been successfully applied to two different shell studies where its prediction capabilities have been properly checked. Those lawsuit studies have showed optimistic results and, being complex systems, have demonstrated the abstractedness and generalizations capabilities of the architecture. Nevertheless OBaMADE is intended to be able to solve much other kind of problems in spread environments scenarios. It should be applied to other varieties of situations and to other cognition fields to amply develop its potencial. Keywords: ECCO Products Used: ECCO2URL: http://hdl.handle.net/10366/76526 Other URLs:
Lee, T; Awaji, T; Balmaseda, M; Ferry, N; Fujii, Y; Fukumori, I; Giese, B; Heimbach, P; Kohl, A; Masina, S; Remy, E; Rosati, A; Schodlok, M; Stammer, D; Weaver, A (2010). Consistency and fidelity of Indonesian-throughflow total volume transport estimated by 14 ocean data assimilation products, Dynamics of Atmospheres and Oceans, 2 (50), 201-223, 10.1016/J.Dynatmoce.2009.12.004. Title: Consistency and fidelity of Indonesian-throughflow total volume transmit estimated by 14 ocean data acculturation products Type: Journal article Publication: Dynamics of Atmospheres and Oceans Author(s): Lee, T ; Awaji, T ; Balmaseda, M ; Ferry, N ; Fujii, Y ; Fukumori, I ; Giese, B ; Heimbach, P ; Kohl, A ; Masina, S ; Remy, E ; Rosati, A ; Schodlok, M ; Stammer, D ; Weaver, A Year: 2010 Formatted Citation: Lee, T. and Coauthors, 2010 : consistency and fidelity of Indonesian-throughflow total book enchant estimated by 14 ocean data assimilation products. Dynamics of Atmospheres and Oceans, 50 ( 2 ), 201-223, doi:10.1016/J.Dynatmoce.2009.12.004 Abstract: Monthly averaged sum volume tape drive of the indonesian throughflow ( ITF ) estimated by 14 ball-shaped ocean data assimilation ( ODA ) products that are decade to multi-decade farseeing are compared among themselves and with observations from the INSTANT Program ( 2004-2006 ). The main goals of the comparisons are to examine the consistency and evaluate the skill of different ODA products in simulating ITF transport. The ensemble average, time-mean value of ODA estimates is 13.6 Sv ( 1 Sv = 10 ( 6 ) thousand ( 3 ) /s ) for the common 1993-2001 menstruation and 13.9 Sv for the 2004-2006 INSTANT Program menstruation. These values are close to the 15-Sv estimate derived from INSTANT observations. All hut one ODA time-mean estimate fall within the rate of doubt of the INSTANT estimate. In terms of temporal variability, the scatter among different ODA estimates averaged over time is 1.7 Sv, which is well smaller than the magnitude of the temporal unevenness simulated by the ODA systems. therefore, the overall “ signal-to-noise ratio ” proportion for the ensemble estimates is larger than one. The best consistency among the products occurs on seasonal-to-interannual time scales, with generally stronger ( weaker ) ITF during boreal summer ( winter ) and during La Nina ( El Nino ) events. The scatter among unlike products for seasonal-to-interannual time scales is approximately 1 Sv. Despite the good consistency, systematic deviation is found between most ODA products and the INSTANT observations. All but the highest-resolution ( 18 kilometer ) ODA intersection testify a dominant annual hertz while the INSTANT estimate and the 18-km intersection parade a impregnable semi-annual signal. The coarse solution is an important gene that limits the floor of agreement between ODA and INSTANT estimates. Decadal signals with periods of 10-15 years are seen. The most conspicuous and consistent decadal change is a relatively crisp increase in ITF transport during 1993-2000 associated with the strengthening tropical Pacific trade wind wreathe. Most products do not show a debilitative ITF after the mid-1970s ‘ associated with the weakened Pacific trade fart. The scatter of ODA estimates is smaller after than before 1980, reflecting the impact of the enhanced observations after the 1980s. To assess the representativeness of using the average over a three-year period ( e.g., the span of the INSTANT Program ) to describe longer-term average, we investigate the temporal variations of the three-year low-pass ODA estimates. The average variation is about 3.6 Sv, which is largely due to the increase of ITF transport from 1993 to 2000. however, the three-year average during the 2004-2006 INSTANT Program time period is within 0.5 Sv of the long-run bastardly for the past few decades. ( C ) 2010 Elsevier B.V. All rights reserved. Keywords: circulation model, climate system, gcm, global ocean, indonesian throughflow, interannual variability, north-atlantic, ocean data acculturation, pacific, temperature ECCO Products Used: ECCO-KFS ; ECCO-V1 ; ECCO-V3 ; ECCO2 ; GECCO URL: Other URLs:
Vinogradova, Nadya T; Ponte, Rui M; Tamisiea, Mark E; Davis, James L; Hill, Emma M (2010). Effects of self-attraction and loading on annual variations of ocean bottom pressure, Journal of Geophysical Research: Oceans, C6 (115), 10.1029/2009JC005783. Title: Effects of self-attraction and loading on annual variations of ocean bottom atmospheric pressure Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Vinogradova, Nadya T ; Ponte, Rui M ; Tamisiea, Mark E ; Davis, James L ; Hill, Emma M Year: 2010 Formatted Citation: Vinogradova, N. T., R. M. Ponte, M. E. Tamisiea, J. L. Davis, and E. M. Hill, 2010 : Effects of self-attraction and loading on annual variations of ocean bottom pressure. J. Geophys. Res. Ocean., 115 ( C6 ), doi:10.1029/2009JC005783 Abstract: The shock of self-attraction and loading ( SAL ) on ocean bottom pressure ξ, an effect not previously considered, is analyzed in terms of the mean annual motorbike based on decade-long estimates of changes in down hydrology, atmospheric atmospheric pressure, and oceanic circulation. The SAL-related changes in ξ occur as a result of distortion of the crust due to loading and self-gravitation of the variable star fluid loads. In the absence of SAL, net fresh water input signal and changes in mean atmospheric atmospheric pressure over the ocean give ascent to a spatially constant ξ annual cycle with an amplitude ∼1-2 curium in equivalent water thickness. circumstance of SAL physics introduces spatial variations that can be significant, peculiarly around continental boundaries, where the amplitude of deviations can exceed 1 cm. For the spatial unevenness induced by SAL effects, changes in both nation hydrology and atmospheric imperativeness are significant. Effects related to the changing ocean circulation are relatively weaker, apart from a few shallow coastal regions. Comparisons with a few in situ, deep ocean observations indicate that for the most accurate ξ estimates, one needs to consider spatially varying SAL-related signals, along with the effects of think of atmospheric pressure and net fresh water input into the oceans. however, the most arrant estimates, including besides effects of ocean circulation, are able to account for merely ∼1/3 of the observe annual variances. Sources of the remaining contribution remain unclear. Keywords: 0438 Diel, seasonal, and annual cycles, 1222 Ocean monitoring with geodetic techniques, 1223 Ocean/Earth/atmosphere/hydrosphere/cryosphere, 4263 Ocean predictability and prediction, 4556 Sea tied : variations and mean, annual bicycle, ocean bottom imperativeness, self-attraction and cargo effects ECCO Products Used: URL: http://dx.doi.org/10.1029/2009JC005783 Other URLs:
Willis, Josh K (2010). Can in situ floats and satellite altimeters detect long-term changes in Atlantic Ocean overturning?, Geophysical Research Letters, 6 (37), 10.1029/2010GL042372. Title: Can in situ floats and satellite altimeters detect long-run changes in Atlantic Ocean overturning ? Type: Journal article Publication: Geophysical Research Letters Author(s): Willis, Josh K Year: 2010 Formatted Citation: Willis, J. K., 2010 : Can in situ floats and satellite altimeters detect long-run changes in Atlantic Ocean overturning ? Geophys. Res. Lett., 37 ( 6 ), doi:10.1029/2010GL042372 Abstract: Global thaw has been predicted to slow the Atlantic Meridional Overturning Circulation ( AMOC ), resulting in significant regional climate impacts across the North Atlantic and beyond. here, satellite observations of ocean surface acme ( SSH ) along with temperature, brininess and speed from profiling floats are used to estimate changes in the northward-flowing, upper arm of the AMOC at latitudes around 41°N. The 2004 through 2006 intend revoke is found to be 15.5 ± 2.4 Sv ( 106 m3/s ) with reasonably smaller seasonal and interannual unevenness than at lower latitudes. There is no significant vogue in overturning intensity between 2002 and 2009. Altimeter datum, however, suggest an increase of 2.6 Sv since 1993, coherent with North Atlantic warming during this same time period. Despite significant seasonal worker to interannual fluctuations, these observations demonstrate that substantial deceleration of the AMOC did not occur during the past 7 years and is improbable to have occurred in the by 2 decades. Keywords: 1616 Climate variability, 1635 Oceans, 4532 General circulation, Altimeter, Argo, Atlantic Overturning ECCO Products Used: ECCO2URL: http://dx.doi.org/10.1029/2010GL042372 Other URLs:
Scharffenberg, Martin G. (2010). The Large-Scale Geostrophic Flow-Field and Eddy Variability as seen from the TOPEX/Poseidon and Jason-1 Tandem Mission. Title: The large-scale Geostrophic Flow-Field and Eddy Variability as seen from the TOPEX/Poseidon and Jason-1 Tandem Mission Type: dissertation Publication: Author(s): Scharffenberg, Martin G. Year: 2010 Formatted Citation: Scharffenberg, M. G., 2010 : The large-scale Geostrophic Flow-Field and Eddy Variability as seen from the TOPEX/Poseidon and Jason-1 Tandem Mission., 121 pp. hypertext transfer protocol : //ediss.sub.uni-hamburg.de/volltexte/2010/4625/. Abstract: Geostrophic open speed anomalies are used to analyze the annual variations of the large-scale geostrophic currents and of the eddy energizing energy ( EKE ) field of the ocean circulation. The underlying geostrophic currents were estimated from the Jason-1 – TOPEX/Poseidon ( JTP ) tandem altimetric sea surface height ( SSH ) measurements using the “ parallel-track-approach ” with a 6.2 kilometer along-track resolution. however, due to the given separation of the tracks of the two satellites, alone big mesoscale eddies are resolved by the tandem measurements. The analysis covers the entire 3-year period of the tandem deputation ( 109 duplicate cycles ) from September, 2002, to September, 2005. The senior high school settlement along-track handiness of the geostrophic speed estimates allows for a spatial map of all quantities on a 2 ◦ × 1 ◦ grid, resulting in a double function resolution. The ocean circulation is shown to have a slenderly higher meridional variability by 10 to 20 % in mid lat- itudes, while in the tropics the EKE field is dominated by the unevenness of the by and large zonal current sphere which clarifies that in some regions it can be crucial to assume anisotropy. very complex structures emerge in the proportion of EKE and hateful energizing energy ( MKE ). How- ever, the ratio is shown to be a lower jump estimate. The probe of the seasonal worker stream changes reveals annual variations of all major stream systems, particularly of the zonal flow-field in low latitudes. There, they lead to zonal jet-like structures on the annual cycle in the southern Pacific, Atlantic, and indian Ocean. In mid and high latitudes, indications of a seasonally modulate force of the Sverdrup circulation emerge from the analysis. obtrusive in mid- and high latitudes are large changes in the wind-driven barotropic cir- culation that are not represented in other altimetric speed products. The EKE field besides shows changes in its amplitude on the annual period. In broken latitudes, these can be explained by seasonally modulated currents. The strongest signals appear in the Gulf of Tehuantepec close to the cardinal american continent and in the Great Whirl area. On the annual period ( ampere well as for the 3-year think of EKE ), the indian Ocean is the most energetic basin. The frequency and wavenumber spectra are shown for both geostrophic speed components and for the EKE on ball-shaped and regional scales. New insights are obtained due to the sepa- rate circumstance of both speed components such as a slenderly higher energy degree for the meridional part in the frequency scope below 100 days over the stallion extra-tropical ocean. Furthermore, strikingly universal frequency-slopes are found for all extra-tropical regions, thought containing different power apparitional densities ( PSD ). On the aliasing fre- quencies of the M 2 and S 2 tides, peaks exist in some regions on the continental shelves that suggest an insufficient correction of the tidal signal from the FES2004 tidal model. For the wavenumber spectrum, the resolving power of the bicycle-built-for-two deputation becomes discernible for wave- lengths shorter than 100 – 200 kilometer. Nevertheless, new features appear for longer wavelengths such as the steeper slope for the zonal speed part compared to the meridional. Be- sides the differences between the speed components, about equal slopes are found within the wavenumber spectrum of all extra-tropical regions ( excluding the meridional component of the low energy regions ). The slopes of the EKE wavenumber spectrum indicate that the surface quasi geostrophic ( SQG ) turbulence theory is a better explanation than the quasi geostrophic ( QG ) hypothesis for the satellite data. Keywords: ECCO Products Used: ECCO2URL: http://ediss.sub.uni-hamburg.de/volltexte/2010/4625/ Other URLs:
Ferrari, Raffaele; Wunsch, Carl (2010). The distribution of eddy kinetic and potential energies in the global ocean, Tellus A, 2 (62), 92-108, 10.1111/j.1600-0870.2009.00432.x. Title: The distribution of eddy energizing and potential energies in the global ocean Type: Journal article Publication: Tellus A Author(s): Ferrari, Raffaele ; Wunsch, Carl Year: 2010 Formatted Citation: Ferrari, R., and C. Wunsch, 2010 : The distribution of eddy energizing and potential energies in the global ocean. Tellus A, 62 ( 2 ), 92-108, doi:10.1111/j.1600-0870.2009.00432.x Abstract: Understanding of the major sources, sinks, and reservoirs of energy in the ocean is briefly updated in a diagram. The nature of the dominant energizing department of energy reservoir, that of the balance variablity, is then found to be identical in the observations from a sum of barotropic and first gear baroclinic average quasi-geostrophic modes. small supporting testify is available to partition the spectrum among storm motions and churning cascades, along with significant energy more consistent with decrepit non-linear wave dynamics. Linear-response wind-forced motions appear to dominate the high frequency ( but subinertial ) moor frequency spectrum. Turbulent cascades appear to fill the high wavenumber spectrum in altimetric data and numeric simulations. build up on these issues is hindered by the difficulty in connecting the relatively easily available frequency spectrum with the kind of theoretically predicted wavenumber spectrum. Keywords: ECCO Products Used: ECCO-KFS ; ECCO-V2 ; ECCO2URL: http://dx.doi.org/10.1111/j.1600-0870.2009.00432.x Other URLs:
Vondrák, Jan; Ron, Cyril (2010). Study of atmospheric and oceanic excitations in the motion of earth’s spin axis in space, Acta Geodynamica et Geomaterialia, 1 (7), 19-28. Title: Study of atmospheric and oceanic excitations in the motion of land ’ sulfur spin axis in space Type: Journal article Publication: Acta Geodynamica et Geomaterialia Author(s): Vondrák, Jan ; Ron, Cyril Year: 2010 Formatted Citation: Vondrák, J., and C. Ron, 2010 : survey of atmospheric and oceanic excitations in the apparent motion of earth ‘s spin bloc in space. Acta Geodynamica et Geomaterialia, 7 ( 1 ), 19-28 Abstract: Keywords: Earth orientation, Geophysical excitation, Nutation, VLBI ECCO Products Used: ECCO-KFS URL: Other URLs:
Jin, S G; Chambers, D P; Tapley, B D (2010). Hydrological and oceanic effects on polar motion from GRACE and models, Journal of Geophysical Research-Solid Earth (115), 10.1029/2009jb006635. Title: Hydrological and oceanic effects on pivotal motion from GRACE and models Type: Journal article Publication: Journal of Geophysical Research-Solid Earth Author(s): Jin, S G ; Chambers, D P ; Tapley, B D Year: 2010 Formatted Citation: Jin, S. G., D. P. Chambers, and B. D. Tapley, 2010 : Hydrological and oceanic effects on arctic gesture from GRACE and models. Journal of Geophysical Research-Solid Earth, 115, doi:10.1029/2009jb006635 Abstract: Terrestrial water repositing ( TWS ) and ocean bottom blackmail ( OBP ) are major contributors to the observe polar gesture excitations, second base only to atmospheric bulk movement. however, quantitative appraisal of the hydrological and oceanic effects on diametric motion remains unclear because of the miss of ball-shaped observations. In this paper, hydrological and oceanic bulk excitations to polar motion are investigated using monthly TWS and OBP derived from the Gravity Recovery and Climate Experiment ( GRACE ) for January 2003 until December 2008. The results from this psychoanalysis are compared with hydrological model excitations from the European Center for Medium-Range Weather Forecasts ( ECMWF ) and oceanic mannequin excitations obtained from the Jet Propulsion Laboratory ( JPL ) using Estimating the Circulation and Climate of the Ocean ( ECCO ). Results show that the GRACE-derived OBP and TWS better explain the geodetic residual polar apparent motion excitations for the Px component at the annual period, while the GRACE OBP and ECMWF hydrological angular momentum agree better with the geodetic residuals for the annual Py excitation. GRACE ocean and hydrology excitations better explain the geodetic residuals for the semiannual Py excitement. however, the JPL ECCO and ECMWF models better explain the intraseasonal geodetic residual of pivotal movement excitement in the Px and Py components. The GRACE data prove much higher intraseasonal unevenness than either the models or the geodetic observations. Keywords: atmospheric excitement, chandler-wobble, climate, currents, earths varying rotation, gravity, length, seasonal-variations, unevenness, body of water ECCO Products Used: ECCO-KFS URL: Other URLs:
Losch, Martin; Menemenlis, Dimitris; Campin, Jean-Michel; Heimbach, Patrick; Hill, Chris (2010). On the formulation of sea-ice models. Part 1: Effects of different solver implementations and parameterizations, Ocean Modelling, 1-2 (33), 129-144, 10.1016/j.ocemod.2009.12.008. Title: On the conceptualization of sea-ice models. Part 1 : Effects of different problem solver implementations and parameterizations Type: Journal article Publication: Ocean Modelling Author(s): Losch, Martin ; Menemenlis, Dimitris ; Campin, Jean-Michel ; Heimbach, Patrick ; Hill, Chris Year: 2010 Formatted Citation: Losch, M., D. Menemenlis, J. Campin, P. Heimbach, and C. Hill, 2010 : On the formulation of sea-ice models. Part 1 : Effects of different problem solver implementations and parameterizations. Ocean Modelling, 33 ( 1-2 ), 129-144, doi:10.1016/j.ocemod.2009.12.008 Abstract: This paper describes the ocean frost part of the Massachusetts Institute of Technology general circulation model ( MITgcm ) ; it presents exemplar Arctic and Antarctic results from a realistic, eddy-admitting, global ocean and sea ice configuration ; and it compares B-grid and C-grid active solvers and other numerical details of the parameterized dynamics and thermodynamics in a regional Arctic configuration. Ice mechanics follow a viscous-plastic rheology and the ice momentum equations are solved numerically using either line-successive-over-relaxation ( LSOR ) or elastic-viscous-plastic ( EVP ) dynamic models. Ice thermodynamics are represented using either a zero-heat-capacity formulation or a two-layer formulation that conserves heat content. The model includes predictive variables for snow thickness and for sea ice rink brininess. The above ocean ice model components were borrowed from current generation climate models but they were reformulated on an Arakawa C power system in order to match the MITgcm oceanic power system and they were modified in many ways to permit effective and accurate automatic differentiation. Both tension tensor deviation and advective terms are discretized with the finite-volume method acting. The choice of the dynamic problem solver has a considerable consequence on the solution ; this impression can be larger than, for model, the choice of lateral limit conditions, of ice rheology, and of ice-ocean tension coupling. The solutions obtained with different active solvers typically differ by a few centimeter s−1 in ice stray speeds, 50 centimeter in ice thickness, and arrange 200 km3 yr−1 in fresh water ( ice and coke ) export out of the Arctic. Keywords: Adjoint model, canadian arctic archipelago, Coupled ocean and sea ice rink model, EVP, Numerical ocean methamphetamine model, Sea-ice export, Sensitivities, State estimate, Viscous-plastic rheology ECCO Products Used: ECCO2 ; SeaIceURL: http://www.sciencedirect.com/science/article/pii/S1463500309002418 Other URLs:
Hausman, Jessica; Zlotnicki, Victor (2010). Sea State Bias in Radar Altimetry Revisited, Marine Geodesy, sup1 (33), 336-347, 10.1080/01490419.2010.487804. Title: Sea State Bias in Radar Altimetry Revisited Type: Journal article Publication: Marine Geodesy Author(s): Hausman, Jessica ; Zlotnicki, Victor Year: 2010 Formatted Citation: Hausman, J., and V. Zlotnicki, 2010 : Sea State Bias in Radar Altimetry Revisited. Marine Geodesy, 33 ( sup1 ), 336-347, doi:10.1080/01490419.2010.487804 Abstract: Sea state of matter bias ( SSB ) is account afresh for each radar altimeter. The remark data are sea surface stature ( henry ) differences, separated in time by at most one repeat cycle, or the dispute between measured heat content and a time-mean sea airfoil, an approach called here “ differences from the mean ” ( DFM ). In ordain to release data to users soon, early on estimates of SSB are computed from short time series. This shape has three objectives : 1 ) indicate that the DFM approach introduces specious values in the calculate SSB, 2 ) quantify the SSB error caused by short time series, and 3 ) appraisal SSB for OSTM. Keywords: ECCO Products Used: ECCO2URL: http://dx.doi.org/10.1080/01490419.2010.487804 Other URLs: hypertext transfer protocol : //www.tandfonline.com/doi/abs/10.1080/01490419.2010.487804
Abernathey, Ryan; Marshall, John; Mazloff, Matt; Shuckburgh, Emily (2010). Enhancement of Mesoscale Eddy Stirring at Steering Levels in the Southern Ocean, Journal of Physical Oceanography, 1 (40), 170-184, 10.1175/2009JPO4201.1. Title: Enhancement of Mesoscale Eddy Stirring at Steering Levels in the southern Ocean Type: Journal article Publication: Journal of Physical Oceanography Author(s): Abernathey, Ryan ; Marshall, John ; Mazloff, Matt ; Shuckburgh, Emily Year: 2010 Formatted Citation: Abernathey, R., J. Marshall, M. Mazloff, and E. Shuckburgh, 2010 : enhancement of Mesoscale Eddy Stirring at Steering Levels in the southerly Ocean. Journal of Physical Oceanography, 40 ( 1 ), 170-184, doi:10.1175/2009JPO4201.1 Abstract: Meridional cross sections of effective diffusivity in the southerly Ocean are presented and discussed. The effective diffusivity, Keff, characterizes the pace at which mesoscale eddies stir properties on inside isopycnal surfaces and laterally at the ocean surface. The distributions are obtained by monitoring the pace at which eddies stir an idealized tracer whose initial distribution varies monotonically across the Antarctic Circumpolar Current ( ACC ). In the absence of respect maps of eddying currents in the interior ocean, the advecting speed field is taken from an eddy-permitting department of state calculate of the southern Ocean ( SOSE ). A cubic advection-diffusion equation is solved and the diffusivity diagnosed by applying the Nakamura technique on both horizontal and isopycnal surfaces. The resulting meridional sections of Keff reveal intensified isopycnal eddy stir ( reaching values of ∼2000 m2 s−1 ) in a layer deep beneath the ACC but rising toward the come on on the equatorward flank. Lower effective diffusivity values ( ∼500 m2 s−1 ) are found near the open where the bastardly stream of the ACC is strongest. It is argued that Keff is enhanced in the vicinity of the steering level of baroclinic waves, which is thick along the axis of the ACC but shallows on the equatorial flank. Values of Keff are besides found to be spatially correlated with gradients of likely vorticity on isopycnal surfaces and are large where those gradients are weak and frailty versa, as expected from bare dynamic arguments. ultimately, implications of the spatial distributions of Keff for the dynamics of the ACC and its overthrow circulation are discussed. Keywords: Diffusio, Eddies, Mesoscale processes, southerly Ocean ECCO Products Used: URL: http://journals.ametsoc.org/doi/abs/10.1175/2009JPO4201.1 Other URLs:
Monteiro, F M; Follows, Michael J.; Dutkiewicz, Stephanie (2010). Distribution of diverse nitrogen fixers in the global ocean, Global Biogeochemical Cycles, 3 (24), 10.1029/2009GB003731. Title: Distribution of divers nitrogen fixers in the global ocean Type: Journal article Publication: Global Biogeochemical Cycles Author(s): Monteiro, F M ; Follows, Michael J. ; Dutkiewicz, Stephanie Year: 2010 Formatted Citation: Monteiro, F. M., M. J. Follows, and S. Dutkiewicz, 2010 : distribution of diverse nitrogen fixers in the global ocean. Global Biogeochemical Cycles, 24 ( 3 ), doi:10.1029/2009GB003731 Abstract: We employ a global cubic model to simulate diverse phytoplanktonic diazotrophs ( nitrogen fixers ) in the oceans. In the model, the structure of the marine phytoplankton community self-assembles from a boastfully act of potentially feasible physiologies. Amongst them, analogs of Trichodesmium, unicellular diazotrophs and diatom-diazotroph associations ( DDA ) are successful and abundant. The model biogeography and nitrogen fixation rates of the model diazotrophs compare favorably with a compilation of published observations, which includes both traditional and molecular measurements of abundance and activity of marine diazotrophs. In the model, the diazotroph analogs occupy warm subtropical and tropical waters, with higher concentrations and nitrogen fixation rates in the tropical Atlantic Ocean and the Arabian Sea/Northern Indian Ocean, and lower values in the tropical and subtropical South Pacific Ocean. The three main diazotroph types typically co-exist in the model, although Trichodesmium analogs dominate the diazotroph population in a lot of the North and tropical Atlantic Ocean and the Arabian Sea, while unicellular-diazotroph analogs dominate in the South Atlantic, Pacific and amerind oceans. This design reflects the relative degree of alimentary restriction by iron or morning star. The mannequin suggests in addition that unicellular diazotrophs could add arsenic much newfangled nitrogen to the global ocean as trichodesmium. Keywords: 0414 Biogeochemical cycles, 0460 Marine systems, 0469 Nitrogen cycle, and modelin, biodiversity, biogeochemical cycles, mold, nitrogen obsession, ocean, processes ECCO Products Used: ECCO-V2URL: http://dx.doi.org/10.1029/2009GB003731 Other URLs: hypertext transfer protocol : //doi.wiley.com/10.1029/2009GB003731
Li, Qun; Zhang, Lu; Wu, Huiding (2010). A coupled regional Arctic sea ice-ocean model: Configuration and application, Chinese Journal of Polar Research, 1 (22), 79-89. Title: A couple regional Arctic sea ice-ocean exemplary : configuration and application Type: Journal article Publication: Chinese Journal of Polar Research Author(s): Li, Qun ; Zhang, Lu ; Wu, Huiding Year: 2010 Formatted Citation: Li, Q., L. Zhang, and H. Wu, 2010 : A match regional Arctic sea ice-ocean model : shape and lotion. chinese Journal of Polar Research, 22 ( 1 ), 79-89, hypertext transfer protocol : //journal.polar.org.cn/CN/article/downloadArticleFile.do ? attachType=PDF & id=9971 Abstract: A regional sea ice rink ocean coupled model for the Arctic Ocean was developed. The coup led exemplary was based on the MITgcm ocean circulation model and classical H ibler79 type two class thermodynam ics 2 dynam ics sea ice model. The sea ice dynam ics was considered based on syrupy 2 Plastic ( VP ). The sea frosting thermodynam ics was considered based on Winton three 2 lay 2 emergency room models. A detailed shape of coup d’etat led model has been introduced. particular care has been paid to the model power system apparatus, subgrid paramerization, ice 2 ocean coup d’etat heather and open limit treatm ent. The coup d’etat led model was then app lied and two test run examp les were phosphorus res 2 ented. The first model run was a clim atology sim ulation tungsten ith ten years ( 1992 – 2002 ) averaged NCAR /NCEP reanalysis data as cash machine ospheric forcing. The second mannequin move was a seasonal worker sim ulation for the period of 1992 – 2007. The standard atmosphere ospheric wedge was daily NCAR /NCEP re 2 analysis. The clim atology sim ulation cap tured the general form of the sea ice thickness distri 2 bution of the A rctic, i. e., the thickest sea ice rink is situated around the Canada A rchipelago and the north coast of the Greenland. For the second model run, the modeled Sep tember Sea internal-combustion engine extent anomaly from 1992 – 2007 was highly correlated w ith the observations, west ith a linear cor 2 relation coefficient of 0. 88. The meter inim um of the A rctic sea internal-combustion engine area in the Sep tember of 2007 was unp recedented. The model ocean frosting area and extent for this molarity inim um was overestim ated relative to the observations. however, it cap tured the general form of the sea internal-combustion engine hideaway. Keywords: Arctic Ocean, MITgcm, climate change, regional model, ocean ice ECCO Products Used: ECCO2 ; SeaIceURL: http://journal.polar.org.cn/CN/article/downloadArticleFile.do?attachType=PDF&id=9971 Other URLs:
Durand, M; Fu, L L; Lettenmaier, D P; Alsdorf, D E; Rodriguez, E; Esteban-Fernandez, D (2010). The Surface Water and Ocean Topography Mission: Observing Terrestrial Surface Water and Oceanic Submesoscale Eddies, Proceedings of the IEEE, 5 (98), 766-779, 10.1109/JPROC.2010.2043031. Title: The Surface Water and Ocean Topography Mission : Observing Terrestrial Surface Water and Oceanic Submesoscale Eddies Type: Journal article Publication: Proceedings of the IEEE Author(s): Durand, M ; Fu, L L ; Lettenmaier, D P ; Alsdorf, D E ; Rodriguez, E ; Esteban-Fernandez, D Year: 2010 Formatted Citation: Durand, M., L. L. Fu, D. P. Lettenmaier, D. E. Alsdorf, E. Rodriguez, and D. Esteban-Fernandez, 2010 : The Surface Water and Ocean Topography Mission : Observing Terrestrial Surface Water and Oceanic Submesoscale Eddies. Proceedings of the IEEE, 98 ( 5 ), 766-779, doi:10.1109/JPROC.2010.2043031 Abstract: The elevation of the ocean surface has been measured for over two decades from spaceborne altimeters. however, existing altimeter measurements are not adequate to characterize the moral force variations of most inland urine bodies, nor of ocean eddies at scales of less than about 100 km, notwithstanding that such eddies play a key character in ocean circulation and climate change. For tellurian hydrology, in situ and spaceborne measurements of water surface elevation form the basis for estimates of water storage change in lakes, reservoirs, and wetlands, and of river discharge. however, storage in most inland water bodies, for example, millions of Arctic lakes, is not promptly measured using existing technologies. A solution to the needs of both open water hydrology and physical oceanography communities is the measurement of urine elevations along rivers, lakes, streams, and wetlands and over the ocean surface using swath altimetry. The nominate come on body of water and ocean topography ( SWOT ) deputation will make such measurements. The core engineering for SWOT is the Ka-band radar interferometer ( KaRIN ), which would achieve spatial resolution on the order of tens of meters and centimetric vertical preciseness when averaged over targets of interest. average revisit times will depend upon latitude, with two to four revisits at low to mid latitudes and up to ten revisits at eminent latitudes per ~20-day orbit reprise menstruation. Keywords: Arctic lakes, extraterrestrial being measurements, Hydrologic measurements, Interferometry, Ka-band radar interferometer, KaRIN, Oceans, Sea measurements, Sea surface, Spaceborne radar, Surface Water and Ocean Topography Mission, Surface discharges, Surface topography, Water storage, climate switch, hydrological techniques, hydrology, inland water bodies, lakes, ocean circulation, ocean surface acme, oceanic submesoscale eddies, oceanographic techniques, oceanography, oceanograpy, radar interferometry, remote sensing, remote sensing by radar, reservoirs, river free, rivers, spaceborne altimeter, streams, come on water system hydrology, swath altimetry, man-made aperture radar, tellurian hydrology, sublunar surface water, water memory exchange, water surface natural elevation, wetlands ECCO Products Used: URL: Other URLs:
Wang, W Q; Kohl, A; Stammer, D (2010). Estimates of global ocean volume transports during 1960 through 2001, Geophysical Research Letters (37), 10.1029/2010gl043949. Title: Estimates of global ocean book transports during 1960 through 2001 Type: Journal article Publication: Geophysical Research Letters Author(s): Wang, W Q ; Kohl, A ; Stammer, D Year: 2010 Formatted Citation: Wang, W. Q., A. Kohl, and D. Stammer, 2010 : Estimates of ball-shaped ocean volume transports during 1960 through 2001. Geophys. Res. Lett., 37, doi:10.1029/2010gl043949 Abstract: An estimate of ball-shaped time-varying ocean volume transports is provided for the time period 1960-2001 as it results from the german ECCO ( GECCO ) synthesis. Results confirm previously discussed mean-state ocean circulation systems, encompassing an upper berth meridional cell in the Atlantic with sink in the North Atlantic connected to a lower meridional cell with sinking around Antarctica in the Pacific and Atlantic. Decadal to interdecadal variability arsenic well as long-run trends of ball-shaped ocean tape drive, analyzed over the course of the 42 years, appear as a reorganization of time-mean circulation structures, including the level transports in the Antarctic Circumpolar Current ( ACC ) and the circulation involving the Indo-Pacific exchange. citation : Wang, W., A. Kohl, and D. Stammer ( 2010 ), Estimates of ball-shaped ocean book transports during 1960 through 2001, Geophys. Res. Lett., 37, L15601, department of the interior : 10.1029/2010GL043949. Keywords: antarctic circumpolar current, deep, drake passage, heating system, hydrographic data, mass, meridional overturning circulation, north-atlantic, unevenness, water ECCO Products Used: GECCO URL: Other URLs:
Wunsch, Carl (2010). Toward a Midlatitude Ocean Frequency-Wavenumber Spectral Density and Trend Determination, Journal of Physical Oceanography, 10 (40), 2264-2281, 10.1175/2010JPO4376.1. Title: Toward a Midlatitude Ocean Frequency-Wavenumber Spectral Density and Trend Determination Type: Journal article Publication: Journal of Physical Oceanography Author(s): Wunsch, Carl Year: 2010 Formatted Citation: Wunsch, C., 2010 : Toward a Midlatitude Ocean Frequency-Wavenumber Spectral Density and Trend Determination. Journal of Physical Oceanography, 40 ( 10 ), 2264-2281, doi:10.1175/2010JPO4376.1 Abstract: The time- and space-scale descriptive world power of two-dimensional Fourier analysis is exploited to reanalyze the demeanor of midlatitude unevenness as seen in altimetric data. These data are used to construct a strictly empirical and analytic frequency-zonal wavenumber spectrum of ocean variability for periods between about 20 days and 15 year and on spatial scales of about 200-10 000 kilometer. The spectrum is dominated by motions along a “ nondispersive ” line, which is a full-bodied feature of the data but for whose prominence a complete theoretical explanation is not available. The estimated spectrum besides contains meaning energy at all frequencies and wavenumbers in this range, including eastward-propagating motions, which are likely some combination of nonlinear spectral cascades, wave propagation, and wind-forced motions. The spectrum can be used to calculate statistical expectations of spatial average ocean level and ecstasy variations. however, because the statistics of tendency determination in quantities such as sea floor and volume transports depend immediately upon the spectral limit of the frequency approaching zero, the appropriate meaning calculations remain beyond achieve, because low-frequency variability is indistinguishable from trends already confront in the datum. Keywords: Spectral analysis, Trends, Waves, oceanic ECCO Products Used: URL: http://journals.ametsoc.org/doi/abs/10.1175/2010JPO4376.1 Other URLs:
Dobslaw, H.; Dill, R.; Grötzsch, A.; Brzeziński, Aleksander; Thomas, M. (2010). Seasonal polar motion excitation from numerical models of atmosphere, ocean, and continental hydrosphere, Journal of Geophysical Research, B10 (115), B10406, 10.1029/2009JB007127. Title: Seasonal polar gesticulate excitement from numeral models of air, ocean, and continental hydrosphere Type: Journal article Publication: Journal of Geophysical Research Author(s): Dobslaw, H. ; Dill, R. ; Grötzsch, A. ; Brzeziński, Aleksander ; Thomas, M. Year: 2010 Formatted Citation: Dobslaw, H., R. Dill, A. Grötzsch, A. Brzeziński, and M. Thomas, 2010 : seasonal worker polar motion excitement from numeral models of standard atmosphere, ocean, and continental hydrosphere. Journal of Geophysical Research, 115 ( B10 ), B10406, doi:10.1029/2009JB007127 Abstract: Effective angular momentum functions from standard atmosphere, oceans, and terrestrial water memory are obtained from european Centre for Medium-Range Weather Forecasts atmospheric data and corresponding simulations with the Ocean Model for Circulation and Tides and the Land Surface and Discharge Model ( LSDM ). Mass exchanges among the subsystems are realized by means of fresh water fluxes, causing the total ocean mass to vary predominantly per annum. Variations in total ocean mass affect the oceanic excitations of the annual careen by about 1 milliarc second ( master of arts ) for both prograde and retrograde components, whereas the movement term contributions of planetary body of water flow derived from LSDM are found to be 3 orders of magnitude smaller. Since differences to geodetic excitations are not well reduced and regional decompositions demonstrate the large spatial unevenness of contributions to seasonal diametric apparent motion excitation that compensate each early when integrated globally, it is concluded that the blockage of the seasonal excitation budget is calm inhibited by remaining model errors in all subsystems. Keywords: Earth rotation variations., Geodesy and Gravity : earth rotation variations, Geodesy and Gravity : Mass balance ECCO Products Used: ECCO-KFSURL: http://adsabs.harvard.edu/abs/2010JGRB..11510406D%5Cnhttp://www.agu.org/pubs/crossref/2010/2009JB007127.shtml Other URLs:
Monteiro, Fanny (2009). Mechanistic models of oceanic nitrogen fixation, MIT Libraries. Title: Mechanistic models of oceanic nitrogen fixation Type: thesis Publication: MIT Libraries Author(s): Monteiro, Fanny Year: 2009 Formatted Citation: Monteiro, F., 2009 : mechanistic models of oceanic nitrogen fixation, MIT Libraries Abstract: Oceanic nitrogen fixation and biogeochemical interactions between the nitrogen, morning star and iron cycles have crucial implications for the control of primary production and carbon storage in the ocean. The biological process of nitrogen fixation is thought to be particularly authoritative where the ocean is nitrogen limited and oligotrophic. This thesis examines some of the mechanisms creditworthy for the distribution, rates and temporal role unevenness of nitrogen fixation and its geochemical signature in the modern ocean. I employ bare analytic theories and numeral models of ecosystems and biogeochemical cycles, and closely refer to direct observations of the phytoplanktonic community and geochemical tracers of the marine nitrogen bicycle. Time-series observations of geochemical tracers and abundances of nitrogen fixers ( or diazotrophs ) in the northerly subtropical gyres suggest unevenness in nitrogen fixation on interannual and longer timescales. I use a highly idealized, two-layer model of the nitrogen and morning star biogeochemistry and ecology of a subtropical coil to explore the previously proposed guess that such unevenness is regulated by an inner biogeochemical oscillator. I find, in sealed parameter regimes, self-sustained oscillations in nitrogen fixation, community structure and biogeochemical cycles even with absolutely sweetheart physical pull. The period of the oscillations is strongly regulated by the exchange pace between the thermocline and mixed-layer waters, suggesting a period of several years to respective decades for the North Pacific subtropical coil regimen, but would likely be shorter ( merely a class or so ) for the North Atlantic Ocean.

Geochemical tracers such as DINxs ( =NO3 — 16PO3- ) measure the oceanic passing from the Redfield ratio. DINx, is frequently used to estimate the rate of nitrogen fixation in the ocean, by quantifying the tracer accretion along isopycnals. however this tracer reflects an interlacing arrange of processes including nitrogen obsession, but besides denitrification, atmospheric and riverine sources, differential remineralization and complex conveyance pathways. I examine analytic solutions of the predictive equation of DINx, and an idealized three-dimensional exemplary of the basin-scale circulation, biogeochemical cycles and ecology of the North Atlantic Ocean. The two approaches demonstrate that the observations of a subsurface maximal in the North Atlantic Ocean and the temporal role unevenness at the station BATS of DINxs can be explained just by discriminatory remineralization of organic phosphorus relative to nitrogen. A foster analysis reveals that the current geochemical estimates based on inorganic forms of phosphorus and nitrogen lowball integrated nitrogen fixation rates by a divisor of two to six, by neglecting the discriminatory remineralization effect. Most current understanding of oceanic nitrogen arrested development is based on the Trichodesmium, though unicellular cyanobacteria, diatom-diazotroph associations ( DDA ) and heterotrophic bacteria might be as authoritative in adding nitrogen into the ocean. I employ a self-assembling ball-shaped ocean ecosystem model to simulate diverse phytoplanktonic diazotrophs in the ball-shaped ocean and examine how temperature, oligotrophy, cast-iron and phosphate limitations influence the ball-shaped nautical diazotroph distribution. Keywords: ECCO Products Used: ECCO-V3URL: https://dspace.mit.edu/handle/1721.1/53104 Other URLs:
Tulloch, Ross; Marshall, John; Smith, K. Shafer (2009). Interpretation of the propagation of surface altimetric observations in terms of planetary waves and geostrophic turbulence, Journal of Geophysical Research, C2 (114), C02005, 10.1029/2008JC005055. Title: Interpretation of the propagation of coat altimetric observations in terms of planetary waves and geostrophic turbulence Type: Journal article Publication: Journal of Geophysical Research Author(s): Tulloch, Ross ; Marshall, John ; Smith, K. Shafer Year: 2009 Formatted Citation: Tulloch, R., J. Marshall, and K. S. Smith, 2009 : interpretation of the propagation of airfoil altimetric observations in terms of planetary waves and geostrophic turbulence. Journal of Geophysical Research, 114 ( C2 ), C02005, doi:10.1029/2008JC005055 Abstract: Keywords: ECCO Products Used: OCCAURL: http://doi.wiley.com/10.1029/2008JC005055 Other URLs:
Wunsch, Carl; Heimbach, Patrick (2009). The Global Zonally Integrated Ocean Circulation, 1992-2006: Seasonal and Decadal Variability, Journal of Physical Oceanography, 2 (39), 351-368, 10.1175/2008JPO4012.1. Title: The Global Zonally Integrated Ocean Circulation, 1992-2006 : seasonal and Decadal Variability Type: Journal article Publication: Journal of Physical Oceanography Author(s): Wunsch, Carl ; Heimbach, Patrick Year: 2009 Formatted Citation: Wunsch, C., and P. Heimbach, 2009 : The Global Zonally Integrated Ocean Circulation, 1992-2006 : seasonal worker and Decadal Variability. Journal of Physical Oceanography, 39 ( 2 ), 351-368, doi:10.1175/2008JPO4012.1 Abstract: The zonally integrate meridional and vertical velocities ampere well as the heat content transports and fluxes in a least squares adjusted general circulation model are used to estimate the top-to-bottom oceanic meridional overturning circulation ( MOC ) and its unevenness from 1992 to 2006. A variety of bare theories all produce time scales suggesting that the mid- and high-latitude oceans should respond to atmospheric driving lone over respective decades. In practice, little change is seen in the MOC and associated heat transport except very close to the sea come on, at astuteness near the equator, and in parts of the Southern Ocean. Variability in meridional transports in both volume and heat content is dominated by the annual hertz and secondarily by the semiannual cycle, particularly in the southern Ocean. On time scales longer than a year, the solution exhibits little trends with complicated ball-shaped spatial patterns. aside from a net income consumption of heat from the air ( forced by the NCEP-NCAR reanalysis, which produces net ocean heating ), the origins of the meridional transportation trends are not distinguishable and are probable a combination of model disequilibrium, shifts in the respect system, other trends ( real or artificial ) in the meteorologic fields, and/or true oceanic secularities. none of the results, however, supports an inference of oceanic circulation shifts taking the system out of the range in which changes are more than minor perturbations. That the oceanic observations do not conflict with an apparent surfeit heat uptake from the air implies a continue undersampling of the global ocean, flush in the upper layers. Keywords: Ocean circulation, Seasonal cycle, Tr ECCO Products Used: URL: http://journals.ametsoc.org/doi/abs/10.1175/2008JPO4012.1 Other URLs:
Kroner, C; Thomas, M; Dobslaw, H; Abe, M; Weise, A (2009). Seasonal effects of non-tidal oceanic mass shifts in observations with superconducting gravimeters, Journal of Geodynamics, 3-5 (48), 354-359, 10.1016/j.jog.2009.09.009. Title: Seasonal effects of non-tidal oceanic multitude shifts in observations with superconducting gravimeters Type: Journal article Publication: Journal of Geodynamics Author(s): Kroner, C ; Thomas, M ; Dobslaw, H ; Abe, M ; Weise, A Year: 2009 Formatted Citation: Kroner, C., M. Thomas, H. Dobslaw, M. Abe, and A. Weise, 2009 : seasonal worker effects of non-tidal oceanic mass shifts in observations with superconducting gravimeters. Journal of Geodynamics, 48 ( 3-5 ), 354-359, doi:10.1016/j.jog.2009.09.009 Abstract: in club to achieve a consistent combination of terrestrial and satellite-derived ( GRACE ) graveness field variations reductions of taxonomic perturbations must be applied to both data sets. At the lapp time evidence needs to be provided that these reductions are both necessity and sufficient. Based on the OMCT and the ECCO model the graveness impression of non-tidal oceanic mass shifts is computed for respective sites equipped with a superconducting gravimeter ( SG ) and esp. the long-periodic contributions are studied. With these oceanic models the dynamic ocean response to atmospheric coerce load is automatically computed, and therefore goes beyond the more simplistic concepts of an invert barometer, or alternately a fixed ocean, which is a clear advantage. The findings indeed far are equivocal : for example the taxonomic seasonal change of about 10 nm/s ( 2 ) in gravity for mid-European stations is soon not found in the observe graveness variations. by and large, the order of magnitude of the full consequence of 22-27 nm/s ( 2 ) is surprisingly large for inland stations. in some data sections the reduction leads to the removal of some of the larger residuals. The results obtained for the South-African place Sutherland differ. here the model seasonal worker magnetic declination caused by the non-tidal oceanic mass redistribution and gravity residuals broadly correlate, and therefore by the decrease an improvement of the signal-to-noise ratio ratio in the gravity observations is achieved. An explanation for the unlike results might be found in the ball-shaped hydrological models. Such a model is needed in regulate to remove the consequence of large-scale variations in continental water system storage in the graveness observations. This decrease plays a greater function for european stations than for the south african web site. A critical impact of the land-sea-mask used in the oceanic models and the subsequent insufficient resolving power of the North and Baltic Sea on the computations at the mid-European sites could not be confirmed. From a comparison between the OMCT and the ECCO mannequin substantial discrepancies in some regions of the earth come forth, while both predict variations at inland stations in Europe, South Africa, and Asia of alike magnitude. We presently hesitate to recommend including this decrease in the everyday process of SG data because the seasonal order of magnitude for inland stations is by chance big and partially meaning deviations between the modelled oceanic effects exist. if the order of magnitude proves to be correct universally, this reduction has to be applied. ( C ) 2009 Elsevier Ltd. All rights reserved. Keywords: GRACE establishment, Long-periodic gravity variations, Ocean models, Superconducting hydrometry, atmospheric-pressure, earth, field, deck, grate graveness measurements, mannequin, parameters, decrease, tides, establishment ECCO Products Used: ECCO-KFS URL: Other URLs:
Wunsch, Carl; Heimbach, Patrick; Ponte, Rui; Fukumori, Ichiro (2009). The Global General Circulation of the Ocean Estimated by the ECCO-Consortium, Oceanography, 2 (22), 88-103, 10.5670/oceanog.2009.41. Title: The Global General Circulation of the Ocean Estimated by the ECCO-Consortium Type: Journal article Publication: oceanography Author(s): Wunsch, Carl ; Heimbach, Patrick ; Ponte, Rui ; Fukumori, Ichiro Year: 2009 Formatted Citation: Wunsch, C., P. Heimbach, R. Ponte, and I. Fukumori, 2009 : The Global General Circulation of the Ocean Estimated by the ECCO-Consortium. Oceanography, 22 ( 2 ), 88-103, doi:10.5670/oceanog.2009.41 Abstract: Following on the heels of the World Ocean Circulation Experiment, the Estimating the Circulation and Climate of the Ocean ( ECCO ) consortium has been directed at making the best potential estimates of ocean circulation and its function in climate. ECCO is combining state-of-the-art ocean general circulation models. with the closely complete ball-shaped ocean data sets for 1992 to present. Solutions are immediately available that adequately match about all types of ocean observations and that are, simultaneously, consistent with the exemplar. These solutions are being applied to understanding ocean unevenness, biological cycles, coastal physics, geodesy, and many other areas. Keywords: adjoint, construction, meridional overturning circulation, model, satellite altimetry, sea, sensitivity, department of state estimate, variability, variational data acculturation ECCO Products Used: ECCO-V2 ; ECCO2 ; SOSEURL: https://tos.org/oceanography/article/the-global-general-circulation-of-the-ocean-estimated-by-the-ecco-consortiu Other URLs:
Sannino, G; Herrmann, M; Carillo, A; Rupolo, V; Ruggiero, V; Artale, V; Heimbach, P (2009). An eddy-permitting model of the Mediterranean Sea with a two-way grid refinement at the Strait of Gibraltar, Ocean Modelling, 1 (30), 56-72, 10.1016/j.ocemod.2009.06.002. Title: An eddy-permitting exemplar of the Mediterranean Sea with a bipartite power system nuance at the Strait of Gibraltar Type: Journal article Publication: Ocean Modelling Author(s): Sannino, G ; Herrmann, M ; Carillo, A ; Rupolo, V ; Ruggiero, V ; Artale, V ; Heimbach, P Year: 2009 Formatted Citation: Sannino, G., M. Herrmann, A. Carillo, V. Rupolo, V. Ruggiero, V. Artale, and P. Heimbach, 2009 : An eddy-permitting model of the Mediterranean Sea with a two-way power system nuance at the Strait of Gibraltar. Ocean Modelling, 30 ( 1 ), 56-72, doi:10.1016/j.ocemod.2009.06.002 Abstract: An eddy-permitting exemplar of 1 8 ° solution is implemented covering the whole Mediterranean Sea. Within this grid a 1 24 ° resolution model of the Strait of Gibraltar is embedded. The two grids belong to different models that are coupled through an external parallel driver. The robustness of the adopted grid refinement routine is tested on a multi-decadal consolidation simulating the award climate. The good agreement found between the model circulation and most of the available observations confirms both the robustness and potency of the bipartisan grid polish proficiency. The effects produced on the Mediterranean circulation by the grid polish are investigated through the comparison of two simulations differing only in the presence of the grid refinement. even though the main characteristics of the thermohaline circulation appear alike in the two simulations, some quantitative and qualitative differences are observed : the independent differences found in the Strait of Gibraltar circulate into the hale basin, have an impingement on the water column stratification, and consequently on the convection events. Keywords: Mediterranean ocean model, Strait of Gibraltar, Two-way grid polish ECCO Products Used: URL: http://www.sciencedirect.com/science/article/pii/S146350030900119X Other URLs:
Condron, Alan; Winsor, Peter; Hill, Chris; Menemenlis, Dimitris (2009). Simulated Response of the Arctic Freshwater Budget to Extreme NAO Wind Forcing, Journal of Climate, 9 (22), 2422-2437, 10.1175/2008JCLI2626.1. Title: Simulated Response of the Arctic Freshwater Budget to Extreme NAO Wind Forcing Type: Journal article Publication: Journal of Climate Author(s): Condron, Alan ; Winsor, Peter ; Hill, Chris ; Menemenlis, Dimitris Year: 2009 Formatted Citation: Condron, A., P. Winsor, C. Hill, and D. Menemenlis, 2009 : Simulated Response of the Arctic Freshwater Budget to Extreme NAO Wind Forcing. J. Clim., 22 ( 9 ), 2422-2437, doi:10.1175/2008JCLI2626.1 Abstract: The authors investigate the answer of the Arctic Ocean fresh water budget to changes in the North Atlantic Oscillation ( NAO ) using a regional-ocean configuration of the Massachusetts Institute of Technology GCM ( MITgcm ) and carry out several different 10-yr and 30-yr integrations. At 1/6° ( ∼18 kilometer ) resolution the model resolves the major Arctic transportation pathways, including Bering Strait and the Canadian Archipelago. Two main calculations are performed by repeating the tip fields of two contrasting NAO years in each run for the extreme veto and positive NAO phases of 1969 and 1989, respectively. These calculations are compared both with a manipulate run and the compiled observationally based fresh water budget estimate of Serreze et aluminum. The results show a acquit response in the Arctic fresh water budget to NAO coerce, that is, repeat NAO damaging weave forcing results in about all fresh water being retained in the Arctic, with the majority of the fresh water subject being pooled in the Beaufort coil. In contrast, recur NAO incontrovertible force accelerates the export of fresh water out of the Arctic to the North Atlantic, primarily via Fram Strait ( ∼900 km3 yr−1 ) and the canadian Archipelago ( ∼500 km3 yr−1 ), with a sum loss in fresh water repositing of ∼13 000 km3 ( 15 % ) after 10 year. The boastfully increase in fresh water export through the Canadian Archipelago highlights the significant function that this gateway plays in redistributing the fresh water of the Arctic to subpolar seas, by providing a direct pathway from the Arctic basin to the Labrador Sea, Gulf Stream system, and Atlantic Ocean. The authors discuss the sensitivity of the Arctic Ocean to long-run sterilize extreme point NAO states and show that the fresh water subject of the Arctic is able to be restored to initial values from a depleted fresh water state after ∼20 year. Keywords: Arctic, Forcing, Freshwater, North Atlantic Oscillati ECCO Products Used: ECCO2URL: http://journals.ametsoc.org/doi/abs/10.1175/2008JCLI2626.1 Other URLs:
Heimbach, Patrick; Bugnion, Véronique (2009). Greenland ice-sheet volume sensitivity to basal, surface and initial conditions derived from an adjoint model, Annals of Glaciology, 52 (50), 67-80, 10.3189/172756409789624256. Title: Greenland ice-sheet volume sensitivity to basal, open and initial conditions derived from an adjoint model Type: Journal article Publication: Annals of Glaciology Author(s): Heimbach, Patrick ; Bugnion, Véronique Year: 2009 Formatted Citation: Heimbach, P., and V. Bugnion, 2009 : Greenland ice-sheet volume sensitivity to basal, airfoil and initial conditions derived from an adjoint model. Annals of Glaciology, 50 ( 52 ), 67-80, doi:10.3189/172756409789624256 Abstract: We extend the application of control methods to a comprehensive examination cubic thermomechanical ice-sheet model, SICOPOLIS ( SImulation COde for POLythermal Ice Sheets ). Lagrange multipliers, i.e. sensitivities, are computed with an demand, effective adjoint model that has been generated from SICOPOLIS by rigorous application of automatic differentiation. The case study uses the adjoint model to determine the sensitivity of the sum Greenland methamphetamine book to diverse control condition variables over a 100 year period. The control distance has of the rate 1.2 × 106 elements, consisting of spatial fields of radical flow parameters, surface and basal forcings and initial conditions. dependability of the adjoint model was tested through finite-difference disturbance calculations for assorted control variables and perturbation regions, ascertaining quantitative inferences of the adjoint exemplary. equally well as confirming qualitative aspects of ice-sheet sensitivities ( e.g. expected regional variations ), we detect regions where model sensitivities are apparently unexpected or counter-intuitive, albeit ‘real ‘ in the sense of actual model demeanor. An exemplar is inferred regions where sensitivities of ice-sheet volume to basal skid coefficient are positive, i.e. where a local increase in basal sliding argument increases the ice-sheet book. similarly, incontrovertible ( generally negative ) frost temperature sensitivities in certain parts of the ice sail are found, the signal detection of which seems highly improbable if only conventional perturbation experiments had been used. The object of this paper is largely a validation of concept. available adjoint-code generation tools now open up a variety of novel model applications, notably with attentiveness to sensitivity and doubt analyses and ice-sheet state of matter estimate or data assimilation. Keywords: ECCO Products Used: URL: http://www.ingentaconnect.com/content/igsoc/agl/2009/00000050/00000052/art00009 Other URLs: hypertext transfer protocol : //dx.doi.org/10.3189/172756409789624256
van der Werf, Petra M.; Schouten, M W; van Leeuwen, P J; Ridderinkhof, H; de Ruijter, W P M (2009). Observation and origin of an interannual salinity anomaly in the Mozambique Channel, Journal of Geophysical Research: Oceans, C3 (114), 10.1029/2008JC004911. Title: Observation and origin of an interannual salt anomaly in the Mozambique Channel Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): avant-garde five hundred Werf, Petra M. ; Schouten, M W ; van Leeuwen, P J ; Ridderinkhof, H ; de Ruijter, W P M Year: 2009 Formatted Citation: avant-garde five hundred Werf, P. M., M. W. Schouten, P. J. van Leeuwen, H. Ridderinkhof, and W. P. M. de Ruijter, 2009 : observation and origin of an interannual salt anomaly in the Mozambique Channel. J. Geophys. Res. Ocean., 114 ( C3 ), doi:10.1029/2008JC004911 Abstract: A positive salt anomaly of 0.2 PSU was observed between 50 and 200 thousand over the years 2000-2001 across the Mozambique Channel at a section at 17°S which was repeated in 2003, 2005, 2006, and 2008. meanwhile, a moor array is continued from 2003 to 2008. This anomaly was most clear-cut showing an interannual but nonseasonal variation. The possible origin of the anomaly is investigated using output from three ocean general circulation models ( Estimating the Circulation and Climate of the Ocean, Ocean Circulation and Climate Advanced Modeling, and Parallel Ocean Program ). The most probable mechanism for the brininess anomaly is the anomalous inflow of subtropical waters caused by a weaken of the northerly part of the South Equatorial Current by weaker trade winds. This mechanism was found in all three numeral models. In addition, the numeral models indicate a possible salinization of one of the source body of water masses to the Mozambique Channel as an extra cause of the anomaly. The anomaly propagated southbound into the Agulhas Current and north along the African slide. Keywords: 4223 Descriptive and regional oceanography, 4255 Numerical model, 4572 Upper ocean and assorted layer processes, Mozambique Channel, interannual unevenness, brininess anomaly ECCO Products Used: ECCO-KFSURL: http://dx.doi.org/10.1029/2008JC004911 Other URLs:
Seitz, Florian; Krügel, Manuela (2009). Inverse Model Approach for vertical Load Deformations in Consideration of Crustal Inhomogeneities, Geodetic Reference Frames, 23-29, 10.1007/978-3-642-00860-3_4. Title: Inverse Model Approach for vertical Load Deformations in Consideration of Crustal Inhomogeneities Type: Book section Publication: Geodetic Reference Frames Author(s): Seitz, Florian ; Krügel, Manuela Year: 2009 Formatted Citation: Seitz, F., and M. Krügel, 2009 : inverse Model Approach for vertical Load Deformations in Consideration of Crustal Inhomogeneities. Geodetic Reference Frames, H. Drewes, Eds., Springer, 23-29, doi:10.1007/978-3-642-00860-3_4 Abstract: Geodetic Reference Frames Keywords: ECCO Products Used: ECCO-KFSURL: http://link.springer.com/10.1007/978-3-642-00860-3_4 Other URLs:
Mata, Aitor; Tapia, Dante I; González, Angélica; Pérez, Belén (2009). A Contingency Response Multi-agent System for Oil Spills, 7th International Conference on PAAMS’09, 274-283. Title: A Contingency Response Multi-agent System for Oil Spills Type: Conference Proceedings Publication: 7th International Conference on PAAMS’09 Author(s): Mata, Aitor ; Tapia, Dante I ; González, Angélica ; Pérez, Belén Year: 2009 Formatted Citation: Mata, A., D. I. Tapia, A. González, and B. Pérez, 2009 : A Contingency Response Multi-agent System for Oil Spills. 7th International Conference on PAAMS’09, Springer-Verlag, Eds., Berlin, Heidelberg, 274-283 pp. Abstract: This wallpaper presents CROS, a eventuality response multi-agent arrangement for anoint spills situations. The system makes habit of a Case-Based Reasoning system which generates predic- tions to determine the probability of finding oil slicks in certain areas of the ocean. CBR uses past data to generate fresh solutions to the current trouble. The system employs a distri- buted multi-agent architecture so that the independent components of the system can be accessed remotely. Therefore, all functionalities can communicate in a circulate way, even from mo- bile devices. The core of the system is a group of deliberative agents acting as controllers and administrators for all functionalities. The system has been used to predict real oil spill situa- tions. Results have demonstrated that the system can accurately predict the bearing of vegetable oil slicks in determined zones. It has been demonstrated that using a distribute computer architecture can enhance the overall performance of the system. Keywords: case-based reason, distributed architectures, multi-agent systems, oil spill ECCO Products Used: ECCO2 URL: Other URLs:
Brzeziński, Aleksander; Nastula, Jolanta; Kołaczek, Barbara (2009). Seasonal excitation of polar motion estimated from recent geophysical models and observations, Journal of Geodynamics, 3-5 (48), 235-240, 10.1016/j.jog.2009.09.021. Title: Seasonal excitation of polar apparent motion estimated from recent geophysical models and observations Type: Journal article Publication: Journal of Geodynamics Author(s): Brzeziński, Aleksander ; Nastula, Jolanta ; Kołaczek, Barbara Year: 2009 Formatted Citation: Brzeziński, A., J. Nastula, and B. Kołaczek, 2009 : seasonal worker excitation of diametric gesticulate estimated from recent geophysical models and observations. Journal of Geodynamics, 48 ( 3-5 ), 235-240, doi:10.1016/j.jog.2009.09.021 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: https://linkinghub.elsevier.com/retrieve/pii/S026437070900088X Other URLs:
Ma, Jin; Zhou, Yong-Hong; Liao, De-Chun; Chen, Jian-Li (2009). Excitation of Chandler Wobble by Pacific, Indian and Atlantic Oceans from 1980 to 2005, Chinese Astronomy and Astrophysics, 4 (33), 410-420, 10.1016/j.chinastron.2009.09.007. Title: Excitation of Chandler Wobble by Pacific, Indian and Atlantic Oceans from 1980 to 2005 Type: Journal article Publication: chinese Astronomy and Astrophysics Author(s): Ma, Jin ; Zhou, Yong-Hong ; Liao, De-Chun ; Chen, Jian-Li Year: 2009 Formatted Citation: Ma, J., Y. Zhou, D. Liao, and J. Chen, 2009 : excitation of Chandler Wobble by Pacific, Indian and Atlantic Oceans from 1980 to 2005. chinese Astronomy and Astrophysics, 33 ( 4 ), 410-420, doi:10.1016/j.chinastron.2009.09.007 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: https://linkinghub.elsevier.com/retrieve/pii/S0275106209001076 Other URLs:
Wunsch, Carl (2009). The oceanic variability spectrum and transport trends, Atmosphere-Ocean, 4 (47), 281-291, 10.3137/OC310.2009. Title: The oceanic variability spectrum and tape drive trends Type: Journal article Publication: Atmosphere-Ocean Author(s): Wunsch, Carl Year: 2009 Formatted Citation: Wunsch, C., 2009 : The oceanic unevenness spectrum and transport trends. Atmosphere-Ocean, 47 ( 4 ), 281-291, doi:10.3137/OC310.2009 Abstract: Oceanic meridional transports evaluated over the width of the Pacific Ocean from altimetric observations become incoherent amazingly quickly with meridional separation. even with 15 years of data, surface slopes show no significant coherence beyond 5° of latitude separation at any frequency. An analysis of the frequency/zonal-wavenumber spectral density shows a across-the-board continuum of motions at all meter and space scales, with significant excess energy along a ‘non-dispersive ‘ line extending from the barotropic to the first baroclinic mood Rossby waves. It is speculated that much of that surfeit energy lies with coupled barotropic and first modality Rossby waves. The statistical significance of apparent oceanic tape drive trends depends upon the universe of a reliable frequency/wavenumber spectrum for which only a few experimental elements presently exist. Keywords: ECCO Products Used: URL: http://www.tandfonline.com/doi/abs/10.3137/OC310.2009 Other URLs:
Halkides, D J; Lee, Tong (2009). Mechanisms controlling seasonal-to-interannual mixed layer temperature variability in the southeastern tropical Indian Ocean, Journal of Geophysical Research: Oceans, C2 (114), 10.1029/2008JC004949. Title: Mechanisms controlling seasonal-to-interannual mix layer temperature variability in the southeast tropical indian Ocean Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Halkides, D J ; Lee, Tong Year: 2009 Formatted Citation: Halkides, D. J., and T. Lee, 2009 : Mechanisms controlling seasonal-to-interannual desegregate layer temperature variability in the southeast tropical indian Ocean. J. Geophys. Res. Ocean., 114 ( C2 ), doi:10.1029/2008JC004949 Abstract: We use an Estimating the Circulation and Climate of the Ocean acculturation intersection to investigate seasonal-interannual interracial layer temperature ( MLT ) budgets in the southeastern tropical indian Ocean ( SETIO ) during 1993-2006. We examine spatial inhomogeneity of the SETIO MLT budget, contrasting three subregions with different forcing/circulation characteristics to better understand the area mean budget over the broad SETIO. The subregions are the equatorial zone ( box 1 ), the Sumatra-Java upwelling partition ( box 2 ), and east of the thermocline ridge ( box 3 ). seasonally, surface heat flux dominates MLT in all regions ; advection and subsurface processes by and large play secondary roles. On interannual scales, airfoil heat flux makes major contributions in all three boxes to result of SETIO cooling associated with the indian Ocean Zonal/Dipole Mode. Ocean dynamics show critical differences between regions : subsurface processes cool box 1 and 2 but warm box 3. horizontal advection warms box 1 but cools box 2 and 3. Averaging the MLT budget over the SETIO obscures regional physics. We explain spatial variations of the SETIO MLT budget in terms of differences in pull, circulation, MLT distribution, and shuffle level and barrier layer thicknesses. We besides examine SETIO MLT budget differences during 1994, 1997, and 2006, years exhibiting celebrated SETIO cooling events. In box 1, horizontal advection dominates warming after the 1994 and 2006 coolings, while in 1997, surface inflame flux dominates warming. In box 2, cooling peaks earlier in 1994 than in 1997 and 2006 because of subsurface processes. concluding, we show that the MLT budget is very different from heat budgets for sterilize depth layers ( for example, the top 50-60 megabyte ). Keywords: 4215 Climate and interannual unevenness, 4504 Air/sea interactions, 4572 Upper ocean and shuffle layer processes, IOZDM, MLT, SETIO ECCO Products Used: ECCO-KFSURL: http://dx.doi.org/10.1029/2008JC004949 Other URLs:
Nguyen, An T.; Kwok, Ronald; Menemenlis, Dimitris (2009). Sea-ice Outlook for Summer 2009. Title: Sea-ice Outlook for Summer 2009 Type: Report Publication: Author(s): Nguyen, An T. ; Kwok, Ronald ; Menemenlis, Dimitris Year: 2009 Formatted Citation: Nguyen, A. T., R. Kwok, and D. Menemenlis, 2009 : Sea-ice Outlook for Summer 2009., 2 pp. Abstract: Keywords: ECCO Products Used: ECCO2URL: http://www.arcus.org/files/search/sea-ice-outlook/2009/06/pdf/pan-arctic/11_nguyen_etal_junereport_maydata.pdf Other URLs: hypertext transfer protocol : //www.arcus.org/files/search/sea-ice-outlook/2009/06/pdf/pan-arctic/combined_contributions_junereport_maydata.pdf
Cummings, James; Bertino, Laurent; Brasseur, Pierre; Fukumori, Ichiro; Kamachi, Masafumi; Martin, Matthew J; Mogensen, Kristian; Oke, Peter; Testut, Charles E; Verron, Jacques; Weaver, Anthony (2009). Ocean Data Assimilation Systems for GODAE, Oceanography, 3 (22), 96-109, 10.5670/oceanog.2009.69. Title: Ocean Data Assimilation Systems for GODAE Type: Journal article Publication: oceanography Author(s): Cummings, James ; Bertino, Laurent ; Brasseur, Pierre ; Fukumori, Ichiro ; Kamachi, Masafumi ; Martin, Matthew J ; Mogensen, Kristian ; Oke, Peter ; Testut, Charles E ; Verron, Jacques ; Weaver, Anthony Year: 2009 Formatted Citation: Cummings, J. and Coauthors, 2009 : Ocean Data Assimilation Systems for GODAE. Oceanography, 22 ( 3 ), 96-109, doi:10.5670/oceanog.2009.69 Abstract: Ocean data acculturation has matured to the point that observations are now routinely combined with model forecasts to produce a variety of ocean products. Approaches to ocean data acculturation vary widely both in terms of the sophistication of the method and the observations assimilated, and besides in terms of specification of the prognosis error covariances, model biases, observation errors, and quality-control procedures. In this composition, we describe some of the ocean data assimilation systems that have been developed within the Global Ocean Data Assimilation Experiment ( GODAE ) community. We discuss acculturation methods, observations assimilated, and techniques used to specify erroneousness covariances. In addition, we describe practical execution aspects and present analysis performance results for some of the psychoanalysis systems. ultimately, we describe plans for improving the assimilation systems in the post-GODAE time period beyond 2008. Keywords: kalman percolate, model, brininess, fluent, temperature ECCO Products Used: ECCO-KFSURL: https://tos.org/oceanography/article/ocean-data-assimilation-systems-for-godae Other URLs:
Corchado, Juan Manuel; Mata, Aitor; Rodriguez, Sara (2009). OSM: A Multi-Agent System for Modeling and Monitoring the Evolution of Oil Slicks in Open Oceans, Advanced Agent-Based Environmental Management Systems, 91-117, 10.1007/978-3-7643-8900-0_5. Title: OSM : A Multi-Agent system for Modeling and Monitoring the Evolution of Oil Slicks in Open Oceans Type: Book department Publication: Advanced Agent-Based Environmental Management Systems Author(s): Corchado, Juan Manuel ; Mata, Aitor ; Rodriguez, Sara Year: 2009 Formatted Citation: Corchado, J. M., A. Mata, and S. Rodriguez, 2009 : OSM : A Multi-Agent organization for Modeling and Monitoring the Evolution of Oil Slicks in Open Oceans. Advanced Agent-Based Environmental Management Systems, Birkhäuser Basel, 91-117, doi:10.1007/978-3-7643-8900-0_5 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://www.springerlink.com/index/10.1007/978-3-7643-8900-0_5 Other URLs:
Mata, Aitor; Corchado, Juan Manuel (2009). Forecasting the probability of finding oil slicks using a CBR system, Expert Systems with Applications, 4 (36), 8239-8246, 10.1016/j.eswa.2008.10.003. Title: Forecasting the probability of finding oil slicks using a CBR system Type: Journal article Publication: Expert Systems with Applications Author(s): Mata, Aitor ; Corchado, Juan Manuel Year: 2009 Formatted Citation: Mata, A., and J. M. Corchado, 2009 : Forecasting the probability of finding oil slicks using a CBR system. technical Systems with Applications, 36 ( 4 ), 8239-8246, doi:10.1016/j.eswa.2008.10.003 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://linkinghub.elsevier.com/retrieve/pii/S0957417408007227 Other URLs:
Gruber, Nicolas; Gloor, Manuel; Mikaloff Fletcher, Sara E; Doney, Scott C; Dutkiewicz, Stephanie; Follows, Michael J.; Gerber, Markus; Jacobson, Andrew R; Joos, Fortunat; Lindsay, Keith; Menemenlis, Dimitris; Mouchet, Anne; Müller, Simon A; Sarmiento, Jorge L; Takahashi, Taro (2009). Oceanic sources, sinks, and transport of atmospheric CO2, Global Biogeochemical Cycles, 1 (23), 10.1029/2008GB003349. Title: Oceanic sources, sinks, and enchant of atmospheric CO2 Type: Journal article Publication: Global Biogeochemical Cycles Author(s): Gruber, Nicolas ; Gloor, Manuel ; Mikaloff Fletcher, Sara E ; Doney, Scott C ; Dutkiewicz, Stephanie ; Follows, Michael J. ; Gerber, Markus ; Jacobson, Andrew R ; Joos, Fortunat ; Lindsay, Keith ; Menemenlis, Dimitris ; Mouchet, Anne ; Müller, Simon A ; Sarmiento, Jorge L ; Takahashi, Taro Year: 2009 Formatted Citation: Gruber, N. and Coauthors, 2009 : oceanic sources, sinks, and transport of atmospheric CO2. Global Biogeochemical Cycles, 23 ( 1 ), doi:10.1029/2008GB003349 Abstract: We synthesize estimates of the contemporary net air-sea CO2 flux density on the footing of an inversion of interior ocean carbon paper observations using a suite of 10 ocean general circulation models ( Mikaloff Fletcher et al., 2006, 2007 ) and compare them to estimates based on a new climatology of the air-sea dispute of the fond atmospheric pressure of CO2 ( pCO2 ) ( Takahashi et al., 2008 ). These two autonomous liquefy estimates reveal a coherent description of the regional distribution of annual intend sources and sinks of atmospheric CO2 for the ten of the 1990s and the early 2000s with differences at the regional flush of broadly less than 0.1 Pg C a−1. This distribution is characterized by outgassing in the tropics, uptake in midlatitudes, and relatively modest fluxes in thehigh latitudes. Both estimates point toward a small ( ∼ −0.3 Pg C a−1 ) contemporary CO2 slump in the southern Ocean ( south of 44°S ), a resultant role of the dear cancellation between a solid outgassing of natural CO2 and a hard consumption of anthropogenetic CO2. A luminary exception in the by and large beneficial agreement between the two estimates exists within the southern Ocean : the ocean inversion suggests a relatively uniform consumption, while the pCO2-based estimate suggests solid uptake in the region between 58°S and 44°S, and a reservoir in the region south of 58°S. Globally and for a nominal period between 1995 and 2000, the contemporary net air-sea flux of CO2 is estimated to be −1.7 ± 0.4 Pg C a−1 ( inversion ) and −1.4 ± 0.7 Pg C a−1 ( pCO2-climatology ), respectively, consisting of an outgassing flux of river-derived carbon of ∼+0.5 Pg C a−1, and an uptake magnetic field of anthropogenetic carbon of −2.2 ± 0.3 Pg C a−1 ( inversion ) and −1.9 ± 0.7 Pg C a−1 ( pCO2-climatology ). The two blend estimates besides imply a reproducible description of the contemporary meridional transport of carbon paper with southbound ocean transport throughout most of the Atlantic river basin, and firm equatorward convergence in the Indo-Pacific basins. Both transport estimates suggest a small hemispheric asymmetry with a southerly ecstasy of between −0.2 and −0.3 Pg C a−1 across the equator. While the overlap of these two independent estimates is encourage and suggests that it is now possible to provide relatively tight constraints for the net air-sea CO2 fluxes at the regional footing, both studies are limited by their miss of consideration of long-run changes in the ocean carbon motorbike, such as the recent possible stall in the expect increase of the Southern Ocean carbon slump. Keywords: 0414 Biogeochemical cycles, 0428 Carbon cycling, 0460 Marine systems, 4504 Air/sea interactions, air-sea carbon flux, and modelin, anthropogenetic CO2, carbon flux, processes ECCO Products Used: ECCO-V2URL: http://dx.doi.org/10.1029/2008GB003349 Other URLs:
Fernández, L.I (2009). Analysis of Geophysical Variations of the C20 Coefficient of the Geopotential, Observing our Changing Earth (133), 493-500, 10.1007/978-3-540-85426-5_59. Title: psychoanalysis of Geophysical Variations of the C20 Coefficient of the Geopotential Type: Book section Publication: Observing our Changing earth Author(s): Fernández, L.I Year: 2009 Formatted Citation: Fernández, L., 2009 : analysis of Geophysical Variations of the C20 Coefficient of the Geopotential. Observing our Changing Earth, Springer Berlin Heidelberg, 133, 493-500, doi:10.1007/978-3-540-85426-5_59 Abstract: The temporal variations of the C 20 spherical harmonic coefficient of the geopotential are estimated from the length of day ( LOD ) and compared with the C 20 variations due to geophysical contributions. In particular, we analyzed the agreement of the hydrological C 20 changes as estimated by the Land Dynamics Model ( LaD ) model. The calculation spans between January 1980 and May 2004 for the hydrological model The contribution of atmospheric bulk redistributions, along with the oceanic mass terms and solid Earth tides were removed from the geodetic C 20 prison term serial for computing residuals. Afterward the hydrological influence was investigated After eliminating seasonal worker variations, the hydrological excitation seems to be not adequate to explain the inter-annual variations found in the C 20 residuals The luni-solar precession and nutation of the Earth depend on the dynamic flatten ( H ) ; which is related to the principal moments of inactiveness of the hale satellite. H is linked to the C 20 coefficient of the Earth ‘s potential, which is regularly determined by space geodetic techniques In this sour, we besides estimate the seasonal worker variations on H due to geophysical causes. These results should be utilitarian to investigate the geophysical considerations in the calculation of the IAU 2000 precesion-nutation mannequin. © Springer-Verlag Berlin Heidelberg 2009. Keywords: Earth rotation, Geopotencial, Gravity, Hydrology, Length-of-day ECCO Products Used: ECCO-KFSURL: https://link.springer.com/chapter/10.1007/978-3-540-85426-5_59 Other URLs: hypertext transfer protocol : //link.springer.com/10.1007/978-3-540-85426-5_59
Manizza, M; Follows, Michael J.; Dutkiewicz, Stephanie; McClelland, J W; Menemenlis, Dimitris; Hill, C N; Townsend-Small, A; Peterson, B J (2009). Modeling transport and fate of riverine dissolved organic carbon in the Arctic Ocean, Global Biogeochemical Cycles, 4 (23), 10.1029/2008GB003396. Title: Modeling transport and destine of riverine dissolved organic carbon paper in the Arctic Ocean Type: Journal article Publication: Global Biogeochemical Cycles Author(s): Manizza, M ; Follows, Michael J. ; Dutkiewicz, Stephanie ; McClelland, J W ; Menemenlis, Dimitris ; Hill, C N ; Townsend-Small, A ; Peterson, B J Year: 2009 Formatted Citation: Manizza, M., M. J. Follows, S. Dutkiewicz, J. W. McClelland, D. Menemenlis, C. N. Hill, A. Townsend-Small, and B. J. Peterson, 2009 : Modeling enchant and destiny of riverine dissolved organic carbon paper in the Arctic Ocean. Global Biogeochemical Cycles, 23 ( 4 ), doi:10.1029/2008GB003396 Abstract: The spatial distribution and destiny of riverine dissolved organic carbon paper ( DOC ) in the Arctic may be meaning for the regional carbon paper cycle but are unmanageable to fully characterize using the sparse observations alone. numerical models of the circulation and biogeochemical cycles of the region can help to interpret and extrapolate the data and may ultimately be applied in ball-shaped change sensitivity studies. here we develop and explore a regional, three-dimensional model of the Arctic Ocean in which, for the first time, we explicitly represent the sources of riverine DOC with seasonal worker empty based on climatological field estimates. Through a suite of numeric experiments, we explore the distribution of DOC-like tracers with naturalistic riverine sources and a simple linear decay to represent remineralization through microbial abasement. The model reproduces the slope of the DOC-salinity relationship observed in the eastern and westerly Arctic basins when the DOC tracer life is about 10 years, consistent with publish inferences from battlefield data. The fresh empirical parameterization of riverine DOC and the regional circulation and biogeochemical model provide new tools for application in both regional and ball-shaped change studies. Keywords: 4572 Upper ocean and blend layer processes, 4805 Biogeochemical cycles, 4806 Carbon cycling, 4808 Chemical tracers, Arctic Ocean, and modelin, biogeochemical processes, ocean circulation, processes ECCO Products Used: ECCO2URL: http://dx.doi.org/10.1029/2008GB003396 Other URLs:
Dushaw, Brian D. (2009). North Pacific Acoustic Laboratory: Analysis of Shadow Zone Arrivals and Acoustic Propagation in Numerical Ocean Models. Title: North Pacific Acoustic Laboratory : analysis of Shadow Zone Arrivals and Acoustic Propagation in Numerical Ocean Models Type: Report Publication: Author(s): Dushaw, Brian D. Year: 2009 Formatted Citation: Dushaw, B. D., 2009 : North Pacific Acoustic Laboratory : analysis of Shadow Zone Arrivals and Acoustic Propagation in Numerical Ocean Models., 12 pp. Abstract: Over the decade 1996-2006, acoustic sources located off central California and north of Kauai transmitted to receivers distributed throughout the northeast and north cardinal Pacific. Some of the observations included shadow-zone arrivals, that appear at change of location times aligned with the lower cusp of the acoustic time front predicted by ray calculations, but with the depth of the recipient lies well below the depths of the bode cusp. several models for the temperature and brininess in the North Pacific Ocean were obtained and processed to enable simulations of acoustic propagation for comparison to the observations. New tools were developed to manage the large size of the model output signal, to extract and construct the relevant acoustic properties from the model output, and to make the acoustic calculations. Computer codes using beam decipher and the parabolic equation to calculate acoustic properties were significantly developed. The acoustic data show that WOA05 is a better calculate of the time-mean hydrography than either the JPL-ECCO or the POP estimates, which proved incapable of reproducing the observe acoustic arrival patterns. Keywords: ECCO Products Used: ECCO-KFSURL: https://apps.dtic.mil/dtic/tr/fulltext/u2/a494669.pdf Other URLs: hypertext transfer protocol : //apps.dtic.mil/docs/citations/ADA494669
Maze, Guillaume; Forget, Gael; Buckley, Martha; Marshall, John; Cerovecki, Ivana (2009). Using Transformation and Formation Maps to Study the Role of Air-Sea Heat Fluxes in North Atlantic Eighteen Degree Water Formation, Journal of Physical Oceanography, 8 (39), 1818-1835, 10.1175/2009JPO3985.1. Title: Using Transformation and Formation Maps to Study the Role of Air-Sea Heat Fluxes in North Atlantic Eighteen Degree Water Formation Type: Journal article Publication: Journal of Physical Oceanography Author(s): Maze, Guillaume ; Forget, Gael ; Buckley, Martha ; Marshall, John ; Cerovecki, Ivana Year: 2009 Formatted Citation: Maze, G., G. Forget, M. Buckley, J. Marshall, and I. Cerovecki, 2009 : Using Transformation and Formation Maps to Study the Role of Air-Sea Heat Fluxes in North Atlantic Eighteen Degree Water Formation. Journal of Physical Oceanography, 39 ( 8 ), 1818-1835, doi:10.1175/2009JPO3985.1 Abstract: The Walin water bulk framework quantifies the rate at which water is transformed from one temperature class to another by air-sea heat fluxes ( transformation ). The divergence of the transformation rate yields the rate at which a given temperature range is created or destroyed by air-sea hotness fluxes ( formation ). Walin ‘s framework provides a precise integral argument at the expense of losing spatial information. In this study the integrand of Walin ‘s formulation to yield transformation and formation maps is plotted and used to study the character of air-sea heat fluxes in the bicycle of formation-destruction of the 18° ± 1°C layer in the North Atlantic. Using remotely sensed sea airfoil temperatures and air-sea hotness flux estimates based on both analyze meteorologic fields and ocean data-model syntheses for the 3-yr period from 2004 to 2006, the authors find that Eighteen Degree Water ( EDW ) is formed by air-sea heat fluxes in the western partially of the subtropical coil, good south of the Gulf Stream. The formation rate peaks in February when the EDW layer is thickened by convection owing to buoyancy loss. EDW is destroyed by air-sea heat fluxes from spring to summer over the integral subtropical coil. In the annual mean there is final EDW formation in the west to the south of the Gulf Stream, and net destruction over the eastern part of the coil. Results suggest that annual intend geological formation rates of EDW associated with air-sea fluxes are in the image from 3 to 5 Sv ( Sv ≡ 106 m3 s−1 ). ultimately, error estimates are computed from sea coat temperature and estrus flux data using an ensemble perturbation method. The transformation/formation patterns are found to be full-bodied and errors largely affect built-in quantities. Keywords: Air-sea interaction, Atlantic Ocean, Fl, Water masses ECCO Products Used: URL: http://journals.ametsoc.org/doi/abs/10.1175/2009JPO3985.1 Other URLs:
Gross, Richard S. (2009). An improved empirical model for the effect of long-period ocean tides on polar motion, Journal of Geodesy, 7 (83), 635-644, 10.1007/s00190-008-0277-y. Title: An better empirical model for the effect of long-period ocean tides on diametric motion Type: Journal article Publication: Journal of Geodesy Author(s): Gross, Richard S. Year: 2009 Formatted Citation: Gross, R. S., 2009 : An improved empiric model for the effect of long-period ocean tides on polar gesture. Journal of Geodesy, 83 ( 7 ), 635-644, doi:10.1007/s00190-008-0277-y Abstract: Because the tide-raising electric potential is symmetrical about the Earth ‘s diametric axis it can excite diametric movement only by acting upon non-axisymmetric features of the Earth like the oceans. In fact, after removing atmospheric and non-tidal oceanic effects, polar motion excitation observations show a strong fortnightly tidal sign that is not wholly explained by existing dynamic and empiric ocean tide models. thus a new empiric model for the impression of the termensual ( Mtm and mtm ), fortnightly ( Mf and medium frequency ), and monthly ( Mm ) tides on pivotal gesticulate is derived here by fitting periodic terms at these tidal frequencies to polar apparent motion excitement observations that span 2 January 1980 to 8 September 2006 and from which atmospheric and non-tidal oceanic effects have been removed. While this new empiric tide model can in full explain the observe fortnightly polar gesticulate excitation signal during this clock time interval it would still be desirable to have a model for the effect of long-period ocean tides on polar gesture that is determined from a dynamic ocean tide model and that is consequently freelancer of polar apparent motion observations. © 2008 The Author ( second ). Keywords: Atmospheric angular Momentum, Earth rotation, Ocean tides, Oceanic angular momentum, Polar motion ECCO Products Used: ECCO-KFS URL: Other URLs:
van der Werf, Petra M. (2009). Variability of the Mozambique Channel Throughflow. Title: Variability of the Mozambique Channel Throughflow Type: thesis Publication: Author(s): avant-garde five hundred Werf, Petra M. Year: 2009 Formatted Citation: van five hundred Werf, P. M., 2009 : variability of the Mozambique Channel Throughflow., 147 pp. Abstract: The Mozambique Channel is an important link in the thermohaline circulation, as the unevenness in its throughflow affects the exchange between the Indian and South Atlantic Ocean south of Africa. In this dissertation, we study the unevenness of the Mozambique Channel throughflow in the rate from eddy to interannual time scales and investigate the lineage of this variability. A 4.2-year time series obtained by a moor range in the Mozambique Channel at 17S was the main object of discipline, together with output from ( Ocean General Circulation ) models and satellite observations. Over the length of the experimental time series, the beggarly book transportation 16.7 Sv south, with daily values ranging between 45 Sv north and 65 Sv southbound. The throughflow is highly variable on a large range of fourth dimension scales. Interannual variability was observed both in the book ecstasy and subsurface brininess in the Mozambique Channel. The amplitude of these variations was large, in the order of 9 Sv for the transmit time serial and about 0.2 PSU for a salt anomaly. The interannual unevenness of the transportation time series has a dominant period of two years. This signal is related to the indian Ocean Dipole index and is transported via the South Equatorial Current. A minus phase of the dipole induces an increase of the southerly ecstasy in the Mozambique Channel with a lag of roughly one year. The salt anomaly in the years 2000 – 2001 is related to the dampen of the northerly part of the South Equatorial Current. This results in a reduce inflow of tropical, relatively fresh waters. The seasonal cycle of the transportation has an amplitude of about 5 Sv and originates from upstream variability in the wreathe forcing west of the Mascarene Ridge. In the observations, this signal is overshadowed by unevenness at other frequencies. In Ocean General Circulation Models on the other hand, this frequency dominates the throughflow, as these models underrepresent unevenness at other, specially higher, frequencies. unevenness at the eddy time scale is identical strong in the respect volume conveyance time series. This is due to the formation of Mozambique Channel eddies around the localization of the mooring section. The alternation between a strong south current and eddies formed out of this current is causing the strong unevenness. In eddy resolving Ocean General Circulation Models, eddies are formed further upstream and therefore no alternation takes rate at the mooring section. Nevertheless, the speed structure of eddies in these models is quite well simulated. Using relatively dim-witted models, it is shown that the estimated conveyance through the channel is identical sensitive to the model frame-up and the model of barotropic and / or baroclinic variability. rectification of the base flow by this unevenness was solid along the north and south limit of the island. besides, the come of correction was sensible to the river basin apparatus. Keywords: ECCO Products Used: ECCO-KFSURL: https://dspace.library.uu.nl/handle/1874/37461 Other URLs: hypertext transfer protocol : //members.casema.nl/p.m.vanderwerf
Douglass, Elizabeth; Roemmich, Dean; Stammer, Detlef (2009). Data Sensitivity of the ECCO State Estimate in a Regional Setting, Journal of Atmospheric and Oceanic Technology, 11 (26), 2420-2443, doi:10.1175/2009JTECHO641.1. Title: Data Sensitivity of the ECCO State Estimate in a regional typeset Type: Journal article Publication: Journal of Atmospheric and Oceanic Technology Author(s): Douglass, Elizabeth ; Roemmich, Dean ; Stammer, Detlef Year: 2009 Formatted Citation: Douglass, E., D. Roemmich, and D. Stammer, 2009 : Data Sensitivity of the ECCO State Estimate in a regional Setting. Journal of Atmospheric and Oceanic Technology, 26 ( 11 ), 2420-2443, department of the interior : doi:10.1175/2009JTECHO641.1 Abstract: The Estimating the Circulation and Climate of the Ocean ( ECCO ) consortium provides a model in which the adjoint method of data assimilation is applied to a general circulation model to provide a dynamically self-consistent calculate of the time-varying ocean department of state, which is constrained by observations. In this survey, the sensitivity of the solution to the constraints provided by versatile datasets is investigated in a regional jell in the North Pacific. Four assimilation experiments are performed, which vary by the data used as constraints and the relative weights associated with these data. The resulting estimates are compared to two of the absorb datasets american samoa well as to data from two time series stations not used as constraints. These comparisons demonstrate that increasing the weights of the subsurface data provides overall improvement in the model-data consistency of the appraisal of the state of the North Pacific Ocean. however, some elements of the solution are degraded. This could result from incompatibility between datasets, possibly because of obscure biases, or from errors in the model physics made more apparent by the increased system of weights on subsurface data. The adjustments to the control parameters of open push and initial conditions necessity to obtain the more accurate fit to the data are found to be within prior error bars. Keywords: Databases, Model errors, Ocean circulation, Sensitivity studies ECCO Products Used: ECCO-V2URL: http://journals.ametsoc.org/doi/abs/10.1175/2009JTECHO641.1 Other URLs:
Balmaseda, Magdalena Alonso; Alves, Oscar J.; Arribas, Alberto; Awaji, Toshiyuki; Behringer, David W.; Ferry, Nicolas; Fujii, Yosuke; Lee, Tong; Rienecker, Michele; Rosati, Tony; Stammer, Detlef (2009). Ocean Initialization for Seasonal Forecasts, Oceanography, 3 (22), 154-159. Title: Ocean Initialization for Seasonal Forecasts Type: Journal article Publication: oceanography Author(s): Balmaseda, Magdalena Alonso ; Alves, Oscar J. ; Arribas, Alberto ; Awaji, Toshiyuki ; Behringer, David W. ; Ferry, Nicolas ; Fujii, Yosuke ; Lee, Tong ; Rienecker, Michele ; Rosati, Tony ; Stammer, Detlef Year: 2009 Formatted Citation: Balmaseda, M. A. and Coauthors, 2009 : ocean Initialization for Seasonal Forecasts. Oceanography, 22 ( 3 ), 154-159, hypertext transfer protocol : //www.jstor.org/stable/24860997 ? seq=1 # page_scan_tab_contents Abstract: Several functional centers routinely issue seasonal forecasts of Earth ‘s climate using coupled ocean-atmosphere models, which require near-real- clock time cognition of the state of matter of the ball-shaped ocean. This paper reviews existing ocean analysis efforts aimed at initializing seasonal worker forecasts. We show that ocean data assimilation improves the skill of seasonal forecasts in many cases, although its shock can be overshadowed by errors in the pair models. The current practice, known as “ uncouple ” low-level formatting, has the advantage of better cognition of atmospheric push fluxes, but it has the defect of likely low-level formatting shock. In holocene years, the idea of obtaining in truth “ coupled ” low-level formatting, where the different components of the coupled arrangement are well balanced, has stimulated several research activities that will be reviewed in clean of their application to seasonal worker forecasts. Keywords: ECCO Products Used: ECCO-KFS ; ECCO-V0URL: https://www.jstor.org/stable/24860997?seq=1#page_scan_tab_contents Other URLs:
Ferrari, Raffaele; Wunsch, Carl (2009). Ocean Circulation Kinetic Energy: Reservoirs, Sources, and Sinks, Annual Review of Fluid Mechanics, 1 (41), 253-282, 10.1146/annurev.fluid.40.111406.102139. Title: Ocean Circulation Kinetic Energy : Reservoirs, Sources, and Sinks Type: Journal article Publication: Annual Review of Fluid Mechanics Author(s): Ferrari, Raffaele ; Wunsch, Carl Year: 2009 Formatted Citation: Ferrari, R., and C. Wunsch, 2009 : ocean Circulation Kinetic Energy : Reservoirs, Sources, and Sinks. Annual Review of Fluid Mechanics, 41 ( 1 ), 253-282, doi:10.1146/annurev.fluid.40.111406.102139 Abstract: The ocean circulation is a lawsuit and consequence of fluid scale interactions ranging from millimeters to more than 10,000 kilometer. Although the wind field produces a large energy remark to the ocean, all but approximately 10 % appears to be dissipated within about 100 thousand of the sea surface, rendering observations of the energy discrepancy necessary to maintain the full water-column stream unmanageable. Attention frankincense shifts to the physically unlike energizing energy ( KE ) reservoir of the circulation and their alimony, dissipation, and possible determine on the very little scales representing irreversible molecular shuffle. Oceanic KE is dominated by the geostrophic eddy playing field, and depending on the vertical structure ( barotropic versus low-mode baroclinic ), direct and inverse energy cascades are possible. The pathways toward waste of the dominant geostrophic eddy KE depend crucially on the direction of the cascade but are difficult to quantify because of unplayful experimental difficulties for wavelengths shorter than approximately 100-200 kilometer. At high frequencies, KE is dominated by internal waves with near-inertial frequencies ( frequencies near the local Coriolis argument ), whose shears appear to be a major source of wave break and mix in the ocean inside. Keywords: department of energy spectrum, geostrophic eddies, inner waves, ECCO Products Used: URL: http://www.annualreviews.org/doi/abs/10.1146/annurev.fluid.40.111406.102139 Other URLs:
Broquet, G.; Edwards, C.A.; Moore, A.M.; Powell, B.S.; Veneziani, M.; Doyle, J.D. (2009). Application of 4D-Variational data assimilation to the California Current System, Dynamics of Atmospheres and Oceans, 1-3 (48), 69-92, 10.1016/j.dynatmoce.2009.03.001. Title: Application of 4D-Variational data assimilation to the California Current system Type: Journal article Publication: Dynamics of Atmospheres and Oceans Author(s): Broquet, G. ; Edwards, C.A. ; Moore, A.M. ; Powell, B.S. ; Veneziani, M. ; Doyle, J.D. Year: 2009 Formatted Citation: Broquet, G., C. Edwards, A. Moore, B. Powell, M. Veneziani, and J. Doyle, 2009 : application of 4D-Variational data assimilation to the California Current System. Dynamics of Atmospheres and Oceans, 48 ( 1-3 ), 69-92, doi:10.1016/j.dynatmoce.2009.03.001 Abstract: Keywords: ECCO Products Used: ECCO-V2URL: https://linkinghub.elsevier.com/retrieve/pii/S0377026509000219 Other URLs:
Moore, Andrew M.; Arango, Hernan G.; Di Lorenzo, Emanuele; Miller, Arthur J.; Cornuelle, Bruce D. (2009). An Adjoint Sensitivity Analysis of the Southern California Current Circulation and Ecosystem, Journal of Physical Oceanography, 3 (39), 702-720, 10.1175/2008JPO3740.1. Title: An Adjoint Sensitivity Analysis of the Southern California Current Circulation and Ecosystem Type: Journal article Publication: Journal of Physical Oceanography Author(s): Moore, Andrew M. ; Arango, Hernan G. ; Di Lorenzo, Emanuele ; Miller, Arthur J. ; Cornuelle, Bruce D. Year: 2009 Formatted Citation: Moore, A. M., H. G. Arango, E. Di Lorenzo, A. J. Miller, and B. D. Cornuelle, 2009 : An Adjoint Sensitivity Analysis of the Southern California Current Circulation and Ecosystem. Journal of Physical Oceanography, 39 ( 3 ), 702-720, doi:10.1175/2008JPO3740.1 Abstract: Keywords: ECCO Products Used: SOSEURL: http://journals.ametsoc.org/doi/abs/10.1175/2008JPO3740.1 Other URLs:
Utke, Jean; Hascoet, Laurent; Heimbach, Patrick; Hill, Chris; Hovland, Paul; Naumann, Uwe (2009). Toward adjoinable MPI, 2009 IEEE International Symposium on Parallel & Distributed Processing, 1-8, 10.1109/IPDPS.2009.5161165. Title: Toward adjoinable MPI Type: Conference Proceedings Publication: 2009 IEEE International Symposium on Parallel & Distributed Processing Author(s): Utke, Jean ; Hascoet, Laurent ; Heimbach, Patrick ; Hill, Chris ; Hovland, Paul ; Naumann, Uwe Year: 2009 Formatted Citation: Utke, J., L. Hascoet, P. Heimbach, C. Hill, P. Hovland, and U. Naumann, 2009 : Toward adjoinable MPI. 2009 IEEE International Symposium on Parallel & Distributed Processing IEEE, 1-8 pp. doi:10.1109/IPDPS.2009.5161165. Abstract: Automatic differentiation is the primary means of obtaining analytic derivatives from a numeric model given as a calculator program. consequently, it is an all-important productivity creature in numerous computational science and engineering domains. Computing gradients with the adjoint ( besides called invert ) mode via source transformation is a particularly beneficial but besides challenging use of automatic rifle differentiation. To date only ad hoc solutions for adjoint differentiation of MPI programs have been available, forcing automatic differentiation creature users to cause about twin communication dataflow and dependencies and manually develop adjoint communication code. Using the communication graph as a model we characterize the principal problems of adjoining the most frequently used communication idioms. We propose solutions to cover these idioms and consider the consequences for the MPI execution, the MPI user and MPI-aware course of study analysis. The MIT general circulation model serves as a practice case to illustrate the viability of our access. Keywords: Computer languages, Computer skill, Cost function, Finite difference methods, Input variables, Laboratories, MPI, MPI-aware program analysis, Numerical models, Productivity, Protection switch, Sensitivity analysis, adjoinable MPI, application broadcast interfaces, automatic rifle differentiation, computer program, data menstruate calculate, message pass, latitude communication dataflow, productivity cock, plan diagnostics, reverse mode, source transformation ECCO Products Used: URL: http://ieeexplore.ieee.org/document/5161165/ Other URLs:
Nguyen, A T; Menemenlis, Dimitris; Kwok, R (2009). Improved modeling of the Arctic halocline with a subgrid-scale brine rejection parameterization, Journal of Geophysical Research: Oceans, C11 (114), 10.1029/2008JC005121. Title: Improved model of the Arctic halocline with a subgrid-scale brine rejection parameterization Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Nguyen, A T ; Menemenlis, Dimitris ; Kwok, R Year: 2009 Formatted Citation: Nguyen, A. T., D. Menemenlis, and R. Kwok, 2009 : Improved model of the Arctic halocline with a subgrid-scale brine rejection parameterization. J. Geophys. Res. Ocean., 114 ( C11 ), doi:10.1029/2008JC005121 Abstract: The halocline in the Arctic Ocean plays an crucial role in regulating heat rally at the bottom of the desegregate layer and it has a direct effect on the ocean sea internal-combustion engine energy balance and sea ice mass proportion. Modeling the halocline, however, remains a challenge in current state-of-the-art coupled ocean sea ice models including those that participated in the Arctic Ocean Model Intercomparison Project. In this analyze, we successfully reproduce a cold halocline in the Canada Basin by implementing a subgrid-scale brine rejection parameterization in an ocean general circulation model. The brine rejection scheme improves the solution by redistributing surface salts rejected during sea internal-combustion engine formation to their neutral irrepressibility depths. The depths are based on salt preen physics and published testing ground and numerical experiments. Compared with hydrographic data from 1993 to 2004, distribution of most of the refuse salt to the bottom of the mix layer seems to yield the lowest model-data misfits. We besides show that the model ‘s shuffle layer depth is sensitive to the background diffusivity ν used in the k-profile parameterization erect shuffle dodge. A background diffusivity of 10−6 m2/s in combination with seawater rejection scheme described herein yield the best model of the Arctic halocline. Keywords: 4255 Numerical model, 4536 Hydrography and tracers, 4572 Upper ocean and mix layer processes, 9315 Arctic region, seawater rejection, halocline, model ECCO Products Used: ECCO2 ; SeaIceURL: http://dx.doi.org/10.1029/2008JC005121 Other URLs:
Biswas, Rupak; Tu, Eugene L.; Van Dalsem, R. William (2009). Role of High-End Computing in Meeting NASA’s Science and Engineering Challenges, Computational Fluid Dynamics 2006, 14-28, 10.1007/978-3-540-92779-2_2. Title: Role of High-End Computing in Meeting NASA ’ s Science and Engineering Challenges Type: Book department Publication: Computational Fluid Dynamics 2006 Author(s): Biswas, Rupak ; Tu, Eugene L. ; Van Dalsem, R. William Year: 2009 Formatted Citation: Biswas, R., E. L. Tu, and R. W. Van Dalsem, 2009 : function of High-End Computing in Meeting NASA ‘s Science and Engineering Challenges. Computational Fluid Dynamics 2006, Springer Berlin Heidelberg, 14-28, doi:10.1007/978-3-540-92779-2_2 Abstract: High-end calculate ( HEC ) has always played a major role in meeting the model and pretense needs of respective NASA missions. Two years ago, NASA was on the verge of dramatically enhancing its HEC capability and capability by significantly increasing its computational and memory resources. With the 10,240-processor Columbia supercomputer in production since Oc- tober 2004, HEC is having an even greater impact within the Agency and beyond. Advanced science and technology simulations in space exploration, Shuttle operations, Earth sciences, and cardinal aeronautics research are occurring on Columbia, demonstrating its ability to accelerate NASA ‘s ex- ploration imagination. This newspaper describes how the integrated production environ- ment fostered at the NASA Advanced Supercomputing ( NAS ) facility at Ames Research Center is reducing design bicycle times, accelerating scientific discov- ery, achieving rapid parametric analyses of multiple scenarios, and enhancing guard for several NASA missions. We focus on Columbia ‘s shock on two key engineering and skill disciplines : aerospace, and climate/weather. We besides discuss future mission challenges and plans for NASA ‘s next-generation HEC environment. Keywords: ECCO Products Used: ECCO2 ; LL_hiresURL: http://link.springer.com/10.1007/978-3-540-92779-2_2 Other URLs:
Fu, Lee-Lueng (2009). Pattern and velocity of propagation of the global ocean eddy variability, Journal of Geophysical Research, C11 (114), C11017, 10.1029/2009JC005349. Title: Pattern and speed of propagation of the global ocean eddy unevenness Type: Journal article Publication: Journal of Geophysical Research Author(s): Fu, Lee-Lueng Year: 2009 Formatted Citation: Fu, L., 2009 : design and speed of propagation of the ball-shaped ocean eddy unevenness. Journal of Geophysical Research, 114 ( C11 ), C11017, doi:10.1029/2009JC005349 Abstract: Satellite altimeter data are used to study the characteristics of the horizontal propagation of eddy variability of the ball-shaped oceans. Decade-long time series of sea open stature is analyzed for finding the maximal crisscross correlation with neighbor time series within a window of space and time lags. The outer space and time lags corresponding to the maximal correlation allow an estimate of the propagation speed of the eddy unevenness that dominates the variability of sea surface acme anomalies. The method acting can not distinguish the diverse forms of eddy variability : isolate eddies and fronts, the weave of ocean currents, or planetary waves. however, the results provide, at a given location of the global oceans, a uniquely determined propagation speed that represents a time-averaged description of the tendency of the drift of the local anesthetic eddy variability. The propagation speed is highly inhomogeneous in quad. Outside the equatorial zone, the zonal generation is intrinsically west, modified by ocean currents, which could reverse the zonal propagation to eastward in regions like the Gulf Stream and the Antarctic Circumpolar Current. At midlatitudes and high latitudes, the propagation pattern is highly affected by the path of ocean currents and the supreme headquarters allied powers europe of bottom topography. At tropical latitudes, the meridional generation is convergent toward the equator in the western basins and divergent away from the equator in the eastern basins. Comparison with the simulations of an eddy-permitting ocean general circulation exemplary shows overall agreement, specially in the latitudinal variation of the zonal propagation speed. The result suggests that the model has captured the effect of the dynamics governing the propagation of ocean eddy unevenness. Keywords: 4512 Currents, 4520 Eddies and mesoscale processes, 4562 Topographic/bathymetric interactions, ocean eddy, generation speed ECCO Products Used: ECCO2URL: http://dx.doi.org/10.1029/2009JC005349 Other URLs: hypertext transfer protocol : //doi.wiley.com/10.1029/2009JC005349
Galton-Fenzi, Benjamin K. (2009). Modelling ice-shelf/ocean interaction. Title: Modelling ice-shelf/ocean interaction Type: dissertation Publication: Author(s): Galton-Fenzi, Benjamin K. Year: 2009 Formatted Citation: Galton-Fenzi, B. K., 2009 : Modelling ice-shelf/ocean interaction., 151 pp. hypertext transfer protocol : //eprints.utas.edu.au/19882/1/whole_Galton-FenziBenjaminKeith2009_thesis.pdf. Abstract: The effect of climate exchange on the multitude balance of internal-combustion engine shelves and bed urine formation is investigated using a terrain-following three-dimensional numeral ocean model. The regional Ocean Modeling System was modified to simulate the thermodynamic processes beneath ice shelves, including direct basal processes and frazil ice dynamics. Process-orientated studies of simplified ice-shelf-ocean cavities investigate the sensitivity of the melting/freezing to the diverse parametrisations which describe the inner physics of the models. The Amery Ice Shelf/ocean model is forced with tides, seasonal worker winds and easiness to seasonal lateral pass boundary climatologies. The open ocean surface fluxes are modified by an inflict climatological sea-ice cover that includes the seasonal impression of polynya. The circulation and basal liquescent and freeze express good agreement with glaciological and oceanographic observations that have been collected from beneath the Amery Ice Shelf via boreholes through the ice and in the adjacent area of Prydz Bay. Strong horizontal and thermohaline ( “ ice-pump ” ) circulation is chiefly driven by melting and refreezing of the frosting ledge. The net radical melt rate is – 45 Gt class ( – 0.7 megabyte class -1 ), which represents 67 % of the sum batch passing of the Amery Ice Shelf. The sum measure of refreezing is – 5.3 Gt year -1, of which 70 % is due to frazil accretion. The seasonal variability of the basal melt/freeze ( up to ±1 molarity year -1 ) within 100 kilometer of the open ocean is the lapp order of magnitude as the area-averaged melt rates. The annual averaged bottomland water formation rates are r-1.2 Sv to the west of the Amery, in the vicinity of Cape Darnley. The Amery Ice Shelf/ocean model is used to investigate the sensitivity of the basal melt/freeze and bed urine formation to the inclusion of respective physical mechanism and changes in forcing. directly comparison with glaciological observations shows that ice-shelf models that include frazil processes improve the imitate convention of marine ice accretion. Simulations without ice-shelf/ocean thermodynamic processes overestimate bottom body of water formation by up to 2.8 times equally much as simulations with ice-shelf/ocean thermodynamic processes, due to the missing buoyant fresh water from the melting methamphetamine shelf. Climate change sensitivity studies suggest that an ocean heating of 1°C above present day temperatures can potentially remove the Amery Ice Shelf in -500 years, entirely due to increased basal melt, and can besides lead to a meaning decrease in the geological formation of bottom water. This research contributes to understanding how interaction between ice shelves and versatile forcing mechanisms can lead to changes in radical melt/freeze and dense water system formation, which has major implications for the constancy of ice shelves, sea level rise, and the salt budget of the ball-shaped oceans. Keywords: ECCO Products Used: ECCO2URL: https://eprints.utas.edu.au/19882/1/whole_Galton-FenziBenjaminKeith2009_thesis.pdf Other URLs:
Seoane, L.; Nastula, J.; Bizouard, C.; Gambis, D. (2009). The use of gravimetric data from GRACE mission in the understanding of polar motion variations, Geophysical Journal International, 2 (178), 614-622, 10.1111/j.1365-246X.2009.04181.x. Title: The use of hydrometric data from GRACE mission in the sympathy of diametric movement variations Type: Journal article Publication: Geophysical Journal International Author(s): Seoane, L. ; Nastula, J. ; Bizouard, C. ; Gambis, D. Year: 2009 Formatted Citation: Seoane, L., J. Nastula, C. Bizouard, and D. Gambis, 2009 : The use of hydrometric data from GRACE mission in the understand of arctic motion variations. Geophysical Journal International, 178 ( 2 ), 614-622, doi:10.1111/j.1365-246X.2009.04181.x Abstract: Keywords: ECCO Products Used: ECCO-KFS ; ECCO-V1URL: https://academic.oup.com/gji/article-lookup/doi/10.1111/j.1365-246X.2009.04181.x Other URLs:
Mata, Ai; Perez, B; Corchado, E; Bajo, J (2009). Organization based system for oceanographic monitoring, 2009 12th International Conference on Information Fusion, 968-975. Title: Organization based system for oceanographic monitor Type: Conference Proceedings Publication: 2009 12th International Conference on Information Fusion Author(s): Mata, Ai ; Perez, B ; Corchado, E ; Bajo, J Year: 2009 Formatted Citation: Mata, A., B. Perez, E. Corchado, and J. Bajo, 2009 : arrangement based system for oceanographic monitor. 2009 12th International Conference on Information Fusion, 968-975 pp. Abstract: Objectives : last years registered an increase in the total of endovascular procedures. Traditional carotid endoarterectomy ( CEA ) is the most perform surgical treatment for carotid stenosis. In symptomatic patients CEA reduces significantly absolute relative hazard of stroke and death. In asymptomatic patients AHA guidelines recommend CEA for stenosis 60-99 %, if the risk of peri-operative stroke or death is < 3 %. According to 2007 Clinical Expert Consensus Document Carotid Artery Stenting ( CAS ) should be used in patients at bad for CEA or into controlled trials and Cochrane Database of Systematic Reviews does not support a far-flung transfer in clinical commit away from recommending CEA as the treatment of option for desirable carotid artery stenosis. Methods : boastfully serial about CEA, published in the last years, show a course about a reasonable reduction of neurological complications or death, even below one percentage. several studies have been addressed to evaluate relative function of CEA and CAS. In carotid stop consonant disease discussion SPACE and EVA-3S failed to demonstrate superiority of CAS vs. CEA. More studies are still enrolling patients but some of them, as WALLSTENT, SAPPHIRE, SPACE and EVA-3S, have been stopped for excessive complication rate in the CAS limb independently from patient subset and EDP stent. Results : Although the impact on throw remains unestablished, results are consistent with a clinically authoritative increase in stroke risk with CAS, an treatment that aims at reducing the risk of stroke 2 In a holocene review of 32 studies comprising CAS and CEA, the incidence of any newly Diffusion-Weighted Imaging lesion was significantly higher after CAS ( 37 % ) than after CEA ( 10 % ). After two years ' follow-up SPACE trial showed as the pace of perennial ipsilateral ischemic strokes is exchangeable for both treatment groups and the incidence of perennial carotid stenosis is importantly higher after CAS. EVA 3S after four years ' follow-up showed that accumulative probability of periprocedural stroke or end and non-procedural ipsilateral stroke was higher with CAS. After the periprocedural period, the hazard of ipsilateral stroke was humble and alike in both treatment groups. open question regarding CEA hush exist in particular about shunt, technique and anesthesia. Conclusions : today CEA is the best discussion until uncontroindicated. Current datum, Cochrane and AHA patronize CAS procedures for TRIALS registration or for CEA contraindications. Indications both CEA or CAS should have the same criteria. For asymptomatic patients still remain argue in the choice of CEA, CAS or best medical treatment. Keywords: Buildings, Civil technology, Computer skill, Computerized monitor, OBSOM core organization, Ocean monitor, Oceans, Organization Based Systems, Petroleum, Predictive models, Satellites, Service oriented architecture, Services Oriented Architectures, Synthetic aperture radar, case-based intelligent, case-based argue methodology, computerised monitor, distributed multiagent architecture, geophysics computing, multi-agent systems, oceanographic monitor, oceanographic techniques, organization based system, services oriented architectures, software architecture ECCO Products Used: ECCO2 URL: Other URLs:
Qu, T D; Gao, S; Fukumori, I; Fine, R A; Lindstrom, E J (2009). Origin and Pathway of Equatorial 13 degrees C Water in the Pacific Identified by a Simulated Passive Tracer and Its Adjoint, Journal of Physical Oceanography, 8 (39), 1836-1853, 10.1175/2009jpo4045.1. Title: Origin and Pathway of Equatorial 13 degrees C Water in the Pacific Identified by a Simulated Passive Tracer and Its Adjoint Type: Journal article Publication: Journal of Physical Oceanography Author(s): Qu, T D ; Gao, S ; Fukumori, I ; Fine, R A ; Lindstrom, E J Year: 2009 Formatted Citation: Qu, T. D., S. Gao, I. Fukumori, R. A. Fine, and E. J. Lindstrom, 2009 : beginning and Pathway of Equatorial 13 degrees C Water in the Pacific Identified by a Simulated Passive Tracer and Its Adjoint. Journal of Physical Oceanography, 39 ( 8 ), 1836-1853, doi:10.1175/2009jpo4045.1 Abstract: The origin and pathway of the thermostad water system in the eastern equatorial Pacific Ocean, often referred to as the equatorial 13 degrees C Water, are investigated using a model passive tracer and its adjoint, based on circulation estimates of a ball-shaped general circulation model. Results attest that the source region of the 13 degrees C Water lies well outside the tropics. In the South Pacific, some 13 degrees C Water is formed northeast of New Zealand, confirming an earlier hypothesis on the water ‘s origin. The South Pacific lineage of the 13 degrees C Water is besides related to the formation of the Eastern Subtropical Mode Water ( ESTMW ) and the Sub-Antarctic Mode Water ( SAMW ). The part of the ESTMW and SAMW that finally enters the concentration range of the 13 degrees C Water ( 25.8 < sigma ( theta ) < 26.6 kilogram megabyte ( -3 ) ) does sol largely by mixing. Water formed in the subtropics enters the equatorial area predominantly through the western boundary, while its inner transportation is relatively small. The freshman North Pacific ESTMW and Central Mode Water ( CMW ) are besides important sources of the 13 degrees C Water. The ratio of the southerly versus the northern origins of the water bulk is about 2 to 1 and tends to increase with clock elapsed from its origin. Of the sum book of initially tracer-tagged water in the easterly equatorial Pacific, approximately 47.5 % originates from depths above sigma ( theta ) = 25.8 kilogram thousand ( -3 ) and 34.6 % from depths below sigma ( theta ) = 26.6 kilogram meter ( -3 ), indicative of a dramatic impact of mixing on the route of subtropical water to becoming the 13 degrees C Water. still entirely a little part of the water formed in the subtropics reaches the equatorial region, because most of the water is trapped and recirculates in the subtropical coil. Keywords: climatology, intermediate, ocean circulation, overturning circulations, south-pacific, subsurface countercurrents, subtropical manner water, thermocline, tropical pacific, undertide ECCO Products Used: ECCO-KFS ; adjoint URL: Other URLs:
Dutkiewicz, Stephanie; Follows, Michael J.; Bragg, J G (2009). Modeling the coupling of ocean ecology and biogeochemistry, Global Biogeochemical Cycles, 4 (23), 10.1029/2008GB003405. Title: Modeling the match of ocean ecology and biogeochemistry Type: Journal article Publication: Global Biogeochemical Cycles Author(s): Dutkiewicz, Stephanie ; Follows, Michael J. ; Bragg, J G Year: 2009 Formatted Citation: Dutkiewicz, S., M. J. Follows, and J. G. Bragg, 2009 : Modeling the yoke of ocean ecology and biogeochemistry. Global Biogeochemical Cycles, 23 ( 4 ), doi:10.1029/2008GB003405 Abstract: We examine the interplay between ecology and biogeochemical cycles in the context of a ball-shaped cubic ocean model where self-assembling phytoplankton communities emerge from a wide place of potentially feasible cell types. We consider the complex model solutions in the light of resource rival theory. The emergent community structures and ecological regimes vary across different forcible environments in the model ocean : Strongly seasonal worker, high-nutrient regions are dominated by fast growing bloom specialists, while stable, low-seasonality regions are dominated by organisms that can grow at broken nutrient concentrations and are suited to oligotrophic conditions. In the latter regions, the framework of resource contest theory provides a utilitarian qualitative and quantitative diagnostic tool with which to interpret the result of competition between model organisms, their regulation of the resource environment, and the sensitivity of the system to changes in samara physiologic characteristics of the cells. Keywords: 4805 Biogeochemical cycles, 4815 Ecosystems, 4858 Population dynamics and ecology, and modelin, and mold, dynamics, ecology, ocean biogeochemistry, processes, resource competition, structure ECCO Products Used: ECCO-V2URL: http://dx.doi.org/10.1029/2008GB003405 Other URLs: hypertext transfer protocol : //doi.wiley.com/10.1029/2008GB003405
Ponte, Rui M; Quinn, Katherine J (2009). Bottom pressure changes around Antarctica and wind-driven meridional flows, Geophysical Research Letters, 13 (36), 10.1029/2009GL039060. Title: Bottom pressure changes around Antarctica and wind-driven meridional flows Type: Journal article Publication: Geophysical Research Letters Author(s): Ponte, Rui M ; Quinn, Katherine J Year: 2009 Formatted Citation: Ponte, R. M., and K. J. Quinn, 2009 : bottom atmospheric pressure changes around Antarctica and wind-driven meridional flows. Geophys. Res. Lett., 36 ( 13 ), doi:10.1029/2009GL039060 Abstract: Spatially-averaged bottom imperativeness anomalies near Antarctica ( south of 60°S ) calculated from GRACE data are well correlated with those produced by the ECCO project using least-squares optimization methods to fit an ocean model to most available data. Both GRACE and ECCO results indicate mass exchange primarily between the Southern Ocean and the Pacific and the importance of zonal wind stress to this exchange. The ECCO stream fields show that the near-surface meridional Ekman tape drive, immediately driven by the zonal hoist stress, is about balanced by return flows below the shallowest topography at 60°S ( ∼1300 m at this Drake Passage latitude ), with the tax return conveyance being slenderly lagged in fourth dimension proportional to the Ekman tape drive. such time lags, which may result from geostrophic adjustment at depth, cause the small consociate internet transport across 60°S to be ∼90° out of phase with the wind. This in turn can explain why zonal hoist stress and bed press anomalies around Antarctica tend to be anticorrelated in both GRACE and ECCO results. Keywords: 1217 Time variable star graveness, 1222 Ocean monitoring with geodetic techniques, 4207 Arctic and Antarctic oceanography, 4532 General circulation, 4556 Sea charge : variations and mean, Ekman transport, Southern Ocean, bottom blackmail ECCO Products Used: ECCO-V2URL: http://dx.doi.org/10.1029/2009GL039060 Other URLs:
Veneziani, M.; Edwards, C. A.; Doyle, J. D.; Foley, D. (2009). A central California coastal ocean modeling study: 1. Forward model and the influence of realistic versus climatological forcing, Journal of Geophysical Research, C4 (114), C04015, 10.1029/2008JC004774. Title: A cardinal California coastal ocean modeling sketch : 1. Forward model and the determine of naturalistic versus climatological pull Type: Journal article Publication: Journal of Geophysical Research Author(s): Veneziani, M. ; Edwards, C. A. ; Doyle, J. D. ; Foley, D. Year: 2009 Formatted Citation: Veneziani, M., C. A. Edwards, J. D. Doyle, and D. Foley, 2009 : A central California coastal ocean modeling study : 1. Forward model and the determine of realistic versus climatological force. Journal of Geophysical Research, 114 ( C4 ), C04015, doi:10.1029/2008JC004774 Abstract: Keywords: ECCO Products Used: ECCO-V2 ; ECCO2URL: http://doi.wiley.com/10.1029/2008JC004774 Other URLs:
Baehr, J; Cunnningham, S; Haak, H; Heimbach, P; Kanzow, T; Marotzke, J (2009). Observed and simulated estimates of the meridional overturning circulation at 26.5-deg N in the Atlantic, Ocean Sci., 4 (5), 575-589, 10.5194/os-5-575-2009. Title: Observed and simulated estimates of the meridional overturn circulation at 26.5-deg N in the Atlantic Type: Journal article Publication: Ocean Sci. Author(s): Baehr, J ; Cunnningham, S ; Haak, H ; Heimbach, P ; Kanzow, T ; Marotzke, J Year: 2009 Formatted Citation: Baehr, J., S. Cunnningham, H. Haak, P. Heimbach, T. Kanzow, and J. Marotzke, 2009 : Observed and simulated estimates of the meridional overturn circulation at 26.5-deg N in the Atlantic. Ocean Sci., 5 ( 4 ), 575-589, doi:10.5194/os-5-575-2009 Abstract: Keywords: ECCO Products Used: ECCO-V2URL: http://www.ocean-sci.net/5/575/2009/ Other URLs:
Ponte, Rui M. (2009). Rate of Work Done by Atmospheric Pressure on the Ocean General Circulation and Tides, Journal of Physical Oceanography, 2 (39), 458-464, 10.1175/2008JPO4034.1. Title: Rate of Work Done by Atmospheric blackmail on the Ocean General Circulation and Tides Type: Journal article Publication: Journal of Physical Oceanography Author(s): Ponte, Rui M. Year: 2009 Formatted Citation: Ponte, R. M., 2009 : rate of Work Done by Atmospheric atmospheric pressure on the Ocean General Circulation and Tides. Journal of Physical Oceanography, 39 ( 2 ), 458-464, doi:10.1175/2008JPO4034.1 Abstract: quantitative psychoanalysis of the energetics of the ocean is crucial for understanding its circulation and mix. The world power input by fluctuations in atmospheric press pascal resulting from the S1 and S2 atmosphere tides and the stochastic continuum is analyzed here, with a concenter on globally integrated, time-mean values. Results are based on available 1° × 1° near-global dad and sea level fields and are intended as chiefly order-of-magnitude estimates. The pace of employment done on the radiational and gravitational components of the S2 ocean tide is estimated at 14 and −60 GW, respectively, by and large occurring at low latitudes. The net extraction of energy at a rate of −46 GW is approximately 10 % of available estimates of the work rates by gravity on the S2 tide. For the chiefly radiational S1 tide, the power remark by pascal is a lot weaker ( 0.25 GW ). Based on daily bastardly quantities, the stochastic public address system continuum contributes ∼3 GW to the nontidal circulation, with substantial ability remark being associated with the pa-driven active reception in the southerly Ocean at submonthly meter scales. Missing contributions from nontidal unevenness at the shortest periods ( ≤ 2 days ) may be substantial, but the rate of work done by dad on the general circulation is probably to remain < 1 % of the available wind instrument stimulation estimates. The importance of protactinium effects when considering local, time-variable energetics remains a possibility, however. Keywords: Ocean circulation, Pressure, Tides ECCO Products Used: ECCO-V2URL: http://journals.ametsoc.org/doi/abs/10.1175/2008JPO4034.1 Other URLs:
Hoteit, I.; Cornuelle, B.; Kim, S.Y.; Forget, G.; Köhl, A.; Terrill, E. (2009). Assessing 4D-VAR for dynamical mapping of coastal high-frequency radar in San Diego, Dynamics of Atmospheres and Oceans, 1-3 (48), 175-197, 10.1016/j.dynatmoce.2008.11.005. Title: Assessing 4D-VAR for dynamic map of coastal high-frequency radar in San Diego Type: Journal article Publication: Dynamics of Atmospheres and Oceans Author(s): Hoteit, I. ; Cornuelle, B. ; Kim, S.Y. ; Forget, G. ; Köhl, A. ; Terrill, E. Year: 2009 Formatted Citation: Hoteit, I., B. Cornuelle, S. Kim, G. Forget, A. Köhl, and E. Terrill, 2009 : Assessing 4D-VAR for dynamic map of coastal high-frequency radar in San Diego. Dynamics of Atmospheres and Oceans, 48 ( 1-3 ), 175-197, doi:10.1016/j.dynatmoce.2008.11.005 Abstract: Keywords: ECCO Products Used: SOSEURL: http://linkinghub.elsevier.com/retrieve/pii/S0377026508000717 Other URLs:
Dushaw, Brian D.; Worcester, P F; Munk, W H; Spindel, R C; Mercer, J A; Howe, B M; Metzger, K; Birdsall, T G; Andrew, R K; Dzieciuch, M A; Cornuelle, B D; Menemenlis, Dimitris (2009). A decade of acoustic thermometry in the North Pacific Ocean, Journal of Geophysical Research, C7 (114), C07021, 10.1029/2008JC005124. Title: A ten of acoustic thermometry in the North Pacific Ocean Type: Journal article Publication: Journal of Geophysical Research Author(s): Dushaw, Brian D. ; Worcester, P F ; Munk, W H ; Spindel, R C ; Mercer, J A ; Howe, B M ; Metzger, K ; Birdsall, T G ; Andrew, R K ; Dzieciuch, M A ; Cornuelle, B D ; Menemenlis, Dimitris Year: 2009 Formatted Citation: Dushaw, B. D. and Coauthors, 2009 : A ten of acoustic thermometry in the North Pacific Ocean. Journal of Geophysical Research, 114 ( C7 ), C07021, doi:10.1029/2008JC005124 Abstract: Over the decade 1996-2006, acoustic sources located off cardinal California ( 1996-1999 ) and north of Kauai ( 1997-1999, 2002-2006 ) transmitted to receivers distributed throughout the northeast and north cardinal Pacific. The acoustic travel times are inherently spatially integrating, which suppresses mesoscale variability and provides a accurate measure of ray-averaged temperature. daily average travel times at 4-day intervals provide excellent worldly resolution of the large-scale thermal field. The interannual, seasonal, and shorter-period unevenness is large, with hearty changes sometimes occurring in entirely a few weeks. linear trends estimated over the ten are small compared to the interannual variability and inconsistent from way to path, with some acoustic paths warming slenderly and others cooling slenderly. The measured travel times are compared with travel times derived from four mugwump estimates of the North Pacific : ( 1 ) climatology, as represented by the World Ocean Atlas 2005 ( WOA05 ) ; ( 2 ) objective analysis of the upper-ocean temperature field derived from satellite altimetry and in situ profiles ; ( 3 ) an analysis provided by the Estimating the Circulation and Climate of the Ocean project, as implemented at the Jet Propulsion Laboratory ( JPL-ECCO ) ; and ( 4 ) simulation results from a high-resolution configuration of the Parallel Ocean Program ( POP ) model. The acoustic data show that WOA05 is a better appraisal of the clock mean hydrography than either the JPL-ECCO or the POP estimates, both of which proved incapable of reproducing the observe acoustic arrival patterns. The comparisons of time series provide a rigorous trial of the large-scale temperature unevenness in the models. The differences are sometimes substantial, indicating that acoustic thermometry data can provide meaning extra constraints for numeral ocean models. Keywords: 4215 Climate and interannual unevenness, 4259 Ocean acoustics, 4262 Ocean observing systems, 4263 Ocean predictability and prediction, acoustic thermometry, basin-scale unevenness, mannequin testing ECCO Products Used: ECCO-KFSURL: http://dx.doi.org/10.1029/2008JC005124 Other URLs: hypertext transfer protocol : //doi.wiley.com/10.1029/2008JC005124
Khatiwala, Samar (2008). Fast spin up of Ocean biogeochemical models using matrix-free Newton–Krylov, Ocean Modelling, 3-4 (23), 121-129, 10.1016/j.ocemod.2008.05.002. Title: Fast spin up of Ocean biogeochemical models using matrix-free Newton–Krylov Type: Journal article Publication: Ocean Modelling Author(s): Khatiwala, Samar Year: 2008 Formatted Citation: Khatiwala, S., 2008 : Fast spin up of Ocean biogeochemical models using matrix-free Newton–Krylov, Ocean Modelling, 23 ( 3-4 ), 121-129, department of the interior : 10.1016/j.ocemod.2008.05.002 Abstract: A fresh computational approach is introduced for the efficient calculation of equilibrium solutions of seasonally forced ocean biogeochemical models. The essential idea is to formulate the problem as a large system of nonlinear algebraic equations to be solved with a class of methods known as matrix-free Newton–Krylov ( MFNK ). MFNK is a combination of Newton-type methods for superlinearly convergent solution of nonlinear equations, and Krylov subspace methods for solving the Newton correction equations. The basic radio link between the two methods is the Jacobian-vector product, which may be probed approximately without forming and storing the elements of the genuine Jacobian. To render this approach virtual for ball-shaped models with O ( 106 ) degrees of freedom, a flexible precondition scheme is developed. The leave is an basically “ black-box ” numeric schema than can be applied to most existing biogeochemical models. The method acting is illustrated by applying it to find the balance solutions of two realistic biogeochemical problems. Compared with the conventional approach path of direct time consolidation, the preconditioned-MFNK scheme is shown to be roughly two orders of magnitude more effective. respective electric potential refinements of the basic algorithm that may yield far performance gains are discussed. The numeral dodge described hera addresses a cardinal challenge to using ocean biogeochemical models more efficaciously. Keywords: ECCO Products Used: ECCO-V3URL: https://linkinghub.elsevier.com/retrieve/pii/S1463500308000589 Other URLs:
Brown, Jaclyn N.; Fedorov, Alexey V. (2008). Mean energy balance in the tropical Pacific Ocean, Journal of Marine Research, 1 (66), 1-23, 10.1357/002224008784815757. Title: Mean energy symmetry in the tropical Pacific Ocean Type: Journal article Publication: Journal of Marine Research Author(s): Brown, Jaclyn N. ; Fedorov, Alexey V. Year: 2008 Formatted Citation: Brown, J.N. and A.V. Fedorov, 2008 : Mean energy balance in the tropical Pacific Ocean, Journal of Marine Research, 6 ( 1 ), 1-23, department of the interior : 10.1357/002224008784815757 Abstract: The maintenance of the ocean general circulation requires department of energy input signal from the wind. previous studies estimate that the think of rate of wreathe work ( or wind ability ) acting on the airfoil currents over the global ocean amounts to 1.1 TW ( 1 TW = 1012 Watts ), though values remain highly uncertain. By analyzing the output from a range of ocean-only models and data assimilations, we show that the tropical Pacific Ocean contributes about 0.2 to 0.4 TW, which is approximately half of the total tropical contribution. not only does this wind ability represent a meaning fraction of the total global energy remark into the ocean circulation, it is besides critical in maintaining the east-west controversy of the ocean thermocline along the equator. The differences in the wind power estimates are due to discrepancies in the weave stress used to force the models and discrepancies in the open currents the models simulate, particularly the North Equatorial Counter Current and the South Equatorial Current. Decadal variations in the wind instrument power, more outstanding in some models, show a clear-cut decrease in the wind baron in the late 1970s, consistent with the climate government shift of that time and a flatten of the equatorial thermocline. We find that most of the wind exponent generated in the tropics is dissipated by friction in the shuffle layer and in zonal currents with impregnable vertical and horizontal shears. approximately 10 to 20 % of the wind world power ( depending on the model ) is transferred down the water column through vertical airiness fluxes to maintain the thermocline slope along the equator. ultimately, this fraction of the wind power is dissipated by a combination of vertical and horizontal diffusion, energy advection out of the tropics, and damping by open heat fluxes. Values of wind baron generated in the tropical Pacific by coupled general circulation models are typically larger than those generated by ocean-only models, and range from 0.3 to 0.6 TW. even though many models simulate a ‘realistic ‘ climate in the tropical ocean, their energy budgets can calm vary greatly from one model to the adjacent. We argue that a compensate energy symmetry is an essential meter of how well the models represent the actual ocean physics. Keywords: ECCO Products Used: ECCO-V3URL: https://www.ingentaconnect.com/content/jmr/jmr/2008/00000066/00000001/art00001 Other URLs:
Schott, F A; Stramma, L; Wang, W; Giese, B S; Zantopp, R (2008). Pacific Subtropical Cell variability in the SODA 2.0.2/3 assimilation, Geophysical Research Letters, 10 (35), 10.1029/2008gl033757. Title: Pacific Subtropical Cell variability in the SODA 2.0.2/3 assimilation Type: Journal article Publication: Geophysical Research Letters Author(s): Schott, F A ; Stramma, L ; Wang, W ; Giese, B S ; Zantopp, R Year: 2008 Formatted Citation: Schott, F. A., L. Stramma, W. Wang, B. S. Giese, and R. Zantopp, 2008 : Pacific Subtropical Cell unevenness in the SODA 2.0.2/3 assimilation. Geophys. Res. Lett., 35 ( 10 ), doi:10.1029/2008gl033757 Abstract: A new interpretation of SODA, which covers the time period 1958 – 2005, is used to analyze decadal variability of the Pacific Subtropical Cell ( STC ) circulation. The analysis is based on enchant time series across 9 degrees S and 9 degrees N. At the interannual meter scale, STC convergence anomalies decrease during El Ni ( newton ) over tilde oxygen and increase during La Ni ( normality ) over tilde as through Sverdrup conveyance overlap changes. At decadal time scales, the assimilation shows a reduction of interior STC convergence of about 8 Sv from the 1960s to the 1990s and a subsequent rally into the early 2000s by a like sum, in agreement with the STC tendencies reported earlier from geostrophic section analysis, and associated with the happening and saturation of ENSO events among the decades analyzed. The results are compared with, and differ significantly from, those obtained by the german ECCO ( GECCO ) acculturation. Keywords: meridional overturning circulation, ocean ECCO Products Used: GECCO URL: Other URLs:
Wunsch, Carl; Heimbach, Patrick (2008). How long to oceanic tracer and proxy equilibrium?, Quaternary Science Reviews, 7-8 (27), 637-651, 10.1016/j.quascirev.2008.01.006. Title: How long to oceanic tracer and proxy chemical equilibrium ? Type: Journal article Publication: Quaternary Science Reviews Author(s): Wunsch, Carl ; Heimbach, Patrick Year: 2008 Formatted Citation: Wunsch, C., and P. Heimbach, 2008 : How long to oceanic tracer and proxy chemical equilibrium ? fourth Science Reviews, 27 ( 7-8 ), 637-651, doi:10.1016/j.quascirev.2008.01.006 Abstract: The versatile time scales for distribution of tracers and proxies in the global ocean are critical to the interpretation of data from deep-sea cores. To obtain some basic physical insight into their demeanor, a ball-shaped ocean circulation model, forced to least-square consistency with modern data, is used to find lower bounds for the time taken by surface-injected passive tracers to reach balance. Depending upon the geographic telescope of the injection, major gradients exist, laterally, between the abyssal North Atlantic and North Pacific, and vertically over much of the ocean, persisting for periods longer than 2000 years and with magnitudes bearing fiddling or no relation to radiocarbon ages. The relative energy of the North Atlantic convective procedure means that tracer events originating far from that location at the sea surface will tend to display abyssal signatures there first, possibly leading to misinterpretation of the consequence localization. ice book ( glacio-eustatic ) corrections to deep-sea δ 18 O values, involving fresh water summation or subtraction, regionally at the ocean coat, can not be assumed to be close to instantaneous in the global ocean, and must be determined quantitatively by modelling the menstruation and by including numerous more complex dynamic interactions. Keywords: ECCO Products Used: URL: http://www.sciencedirect.com/science/article/pii/S0277379108000048 Other URLs:
Kwok, R; Hunke, E C; Maslowski, W; Menemenlis, Dimitris; Zhang, J (2008). Variability of sea ice simulations assessed with RGPS kinematics, Journal of Geophysical Research: Oceans, C11 (113), 10.1029/2008JC004783. Title: Variability of ocean frosting simulations assessed with RGPS kinematics Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Kwok, R ; Hunke, E C ; Maslowski, W ; Menemenlis, Dimitris ; Zhang, J Year: 2008 Formatted Citation: Kwok, R., E. C. Hunke, W. Maslowski, D. Menemenlis, and J. Zhang, 2008 : unevenness of ocean ice rink simulations assessed with RGPS kinematics. J. Geophys. Res. Ocean., 113 ( C11 ), doi:10.1029/2008JC004783 Abstract: Sea ice drift and deformation from coupled ice-ocean models are compared with high-resolution ice gesticulate from the RADARSAT Geophysical Processor System ( RGPS ). In contrast to buoy drift, the density and extent of the RGPS coverage allows a more extensive assessment and reason of model simulations at spatial scales from ∼10 kilometer to near basin scales and from days to seasonal timescales. This work illustrates the strengths of the RGPS data set as a basis for examining model frosting freewheel and its gradients. As it is not our captive to assess proportional performance, we have selected four models with a image of attributes and grid settlement. Model fields are examined in terms of ice drift, export, contortion, deformation-related methamphetamine production, and spatial contortion patterns. even though the models are able of reproducing large-scale drift patterns, variability among model demeanor is high. When compared to the RGPS kinematics, the characteristics shared by the models are ( 1 ) frosting drift along coastal Alaska and Siberia is slower, ( 2 ) the skill in explaining the time series of regional deviation of the internal-combustion engine cover is poor people, and ( 3 ) the deformation-related volume production is systematically lower. attribution of some of these features to particular causes is beyond our stream setting because of the complex interplay between model processes, parameters, and forcing. The present solve suggests that high-resolution methamphetamine stray observations, like those from the RGPS, would be all-important for future model developments, improvements, intercomparisons, and particularly for evaluation of the small-scale behavior of models with fine grid space. Keywords: 0750 Sea ice, 0758 Remote detection, 0762 Mass balance, 0774 Dynamics, 0798 Modeling, Sea ice simulations, climate, satellite methamphetamine motion ECCO Products Used: ECCO2 ; SeaIceURL: http://dx.doi.org/10.1029/2008JC004783 Other URLs:
Nastula, J.; Kolaczek, B.; Salstein, D. A. (2008). Comparison of hydrological and GRACE-based excitation functions of polar motion in the seasonal spectral band, Proceedings of the “Journées Systèmes de Référence Spatio-temporels 2007, 220-221. Title: Comparison of hydrological and GRACE-based excitation functions of polar apparent motion in the seasonal worker spectral set Type: Conference Proceedings Publication: Proceedings of the “ Journées Systèmes de Référence Spatio-temporels 2007 Author(s): Nastula, J. ; Kolaczek, B. ; Salstein, D. A. Year: 2008 Formatted Citation: Nastula, J., B. Kolaczek, and D. A. Salstein, 2008 : comparison of hydrological and GRACE-based excitation functions of polar gesticulate in the seasonal apparitional band. Proceedings of the “ Journées Systèmes de Référence Spatio-temporels 2007, N. Capitaine, Eds. Observatoire de Paris, Paris, France, 220-221 pp. hypertext transfer protocol : //syrte.obspm.fr/journees2007/pdf/s4_28_Nastula.pdf. Abstract: Understanding changes in the global balance wheel of the Earths angular momentum due to the mass redistribution of geophysical fluids is needed to explain the watch polar apparent motion. The impingement of continental hydrologic signals, from kingdom water, snow, and internal-combustion engine, on arctic gesticulate excitation ( hydrological angular momentum-HAM ), is placid inadequately known. Although estimates of HAM have been made from several models of ball-shaped hydrology based upon the ascertained distribution of surface water, snow, and soil moisture, the relatively sparse observation network and the presence of errors in the data and the geophysical fluid models preclude a wide understanding of the HAM influence on polar motion variations. recently the GRACE mission monitoring Earths prison term variable graveness field has allowed us to determine the mass term of pivotal movement excitation functions and compare them with the multitude terminus derivable as a residual from the geodetic excitation functions and geophysical fluid movement terms on seasonal clock scales. Differences between these aggregate terms in the years 2004 – 2005.5 are inactive on the holy order of 20 milliampere. Besides the overall mass excitement of polar gesticulate comparisons with GRACE ( RL04-release ), we besides intercompare the non-atmospheric, non-oceanic signals in the multitude term of geodetic polar apparent motion excitement with hydrological excitation of polar motion. Keywords: ECCO Products Used: ECCO-KFSURL: http://syrte.obspm.fr/journees2007/pdf/s4_28_Nastula.pdf Other URLs:
Korbacz, A; Nski, A Brzezi; Thomas, M (2008). Geophysical excitation of LOD/UT1 estimated from the output of the global circulation models of the atmosphere – ERA-40 reanalysis and of the ocean – OMCT, Proceedings of the “Journées Systèmes de Référence Spatio-temporels 2007”, 188-191. Title: Geophysical excitation of LOD/UT1 estimated from the output of the ball-shaped circulation models of the air – ERA-40 reanalysis and of the ocean – OMCT Type: Conference Proceedings Publication: Proceedings of the “ Journées Systèmes de Référence Spatio-temporels 2007 ” Author(s): Korbacz, A ; Nski, A Brzezi ; Thomas, M Year: 2008 Formatted Citation: Korbacz, A., A. B. Nski, and M. Thomas, 2008 : geophysical excitement of LOD/UT1 estimated from the output of the ball-shaped circulation models of the standard atmosphere – ERA-40 reanalysis and of the ocean – OMCT. Proceedings of the “ Journées Systèmes de Référence Spatio-temporels 2007 ”, N. Capitaine, Eds. Observatoire de Paris, Paris, France, 188-191 pp. hypertext transfer protocol : //syrte.obspm.fr/jsr/journees2007/pdf/s4_12_Korbacz.pdf. Abstract: We use new estimates of the global atmospheric and oceanic angular momentum ( AAM, OAM ) to study the influence on LOD/UT1. The AAM series was calculated from the output fields of the atmospheric general circulation exemplar ERA-40 reanalysis. The OAM series is an consequence of global ocean model OMCT simulation driven by global fields of the atmospheric parameters from the ERA- 40 reanalysis. The excitation data cover the menstruation between 1963 and 2001. Our calculations business atmospheric and oceanic effects in LOD/UT1 over the periods between 20 days and decades. Results are compared to those derived from the alternate AAM/OAM datum sets. Keywords: ECCO Products Used: ECCO-KFSURL: http://syrte.obspm.fr/jsr/journees2007/pdf/s4_12_Korbacz.pdf Other URLs:
Heimbach, P (2008). The MITgcm/ECCO adjoint modeling infrastructure, CLIVAR Exchanges, 1 (13), 13-17. Title: The MITgcm/ECCO adjoint model infrastructure Type: Magazine article Publication: CLIVAR Exchanges Author(s): Heimbach, P Year: 2008 Formatted Citation: Heimbach, P., 2008 : The MITgcm/ECCO adjoint modeling infrastructure. CLIVAR Exchanges, 13 ( 1 ), 13-17 pp. Abstract: Keywords: ECCO Products Used: URL: Other URLs:
Hoteit, I; Cornuelle, B; Thierry, V; Stammer, D (2008). Impact of resolution and optimized ECCO forcing on Simulations of the tropical pacific, Journal of Atmospheric and Oceanic Technology, 1 (25), 131-147, 10.1175/2007jtecho528.1. Title: Impact of resolution and optimize ECCO forcing on Simulations of the tropical pacific Type: Journal article Publication: Journal of Atmospheric and Oceanic Technology Author(s): Hoteit, I ; Cornuelle, B ; Thierry, V ; Stammer, D Year: 2008 Formatted Citation: Hoteit, I., B. Cornuelle, V. Thierry, and D. Stammer, 2008 : impact of resolution and optimize ECCO forcing on Simulations of the tropical pacific. Journal of Atmospheric and Oceanic Technology, 25 ( 1 ), 131-147, doi:10.1175/2007jtecho528.1 Abstract: The sensitivity of the dynamics of a tropical Pacific Massachusetts Institute of Technology ( MIT ) general circulation exemplary ( MITgcm ) to the surface forcing fields and to the horizontal resolution is analyzed. During runs covering the period 1992-2002, two different sets of surface forcing boundary conditions are used, obtained 1 ) from the National Centers for Environmental Prediction/National Center for Atmospheric Research ( NCEP/NCAR ) reanalysis project and 2 ) from the Estimating the Circulation and Climate of the Ocean ( ECCO ) assimilation consortium. The “ ECCO force ” is the “ NCEP force ” adjusted by a submit estimate procedure using the MITgcm with a 1 degrees x 1 degrees global grid and the adjoint method assimilating a multivariate global ocean dataset. The skill of the exemplar is evaluated against ocean observations available in situ and from satellites. The model world is limited to the tropical Pacific, with open boundaries located along 26 degrees S, 26 degrees N, and in the indonesian throughflow. To account for large-scale changes of the ocean circulation, the exemplar is nested in the ball-shaped time-varying ocean state provided by the ECCO consortium on a 1 grid. Increasing the spatial resolving power to 1/3 degrees and using the ECCO storm fields significantly improves many aspects of the circulation but produces excessively potent currents in the western model world. Increasing the resoluteness to 1/6 degrees does not yield further improvements of model results. Using the ECCO heat and fresh water fluxes in place of NCEP products leads to improved time-mean model skill ( i.e., reduced biases ) over most of the model domain, underlining the important character of adjusted heat and fresh water fluxes for improving model representations of the tropical Pacific. Combinations of ECCO and NCEP wind forcing fields can improve certain aspects of the model solutions, but neither ECCO nor NCEP winds show clear overall superiority. Keywords: 1997-98 el-nino, assimilation, cold-tongue, coupled model, data, equatorial undertone, general-circulation model, ncep-ncar, separate i, reanalysis, sea-surface temperature, wind stress ECCO Products Used: ECCO-V1 URL: Other URLs:
Cazes-Boezio, Gabriel; Menemenlis, Dimitris; Mechoso, Carlos R (2008). Impact of ECCO Ocean-State Estimates on the Initialization of Seasonal Climate Forecasts, Journal of Climate, 9 (21), 1929-1947, 10.1175/2007JCLI1574.1. Title: Impact of ECCO Ocean-State Estimates on the Initialization of Seasonal Climate Forecasts Type: Journal article Publication: Journal of Climate Author(s): Cazes-Boezio, Gabriel ; Menemenlis, Dimitris ; Mechoso, Carlos R Year: 2008 Formatted Citation: Cazes-Boezio, G., D. Menemenlis, and C. R. Mechoso, 2008 : impingement of ECCO Ocean-State Estimates on the Initialization of Seasonal Climate Forecasts. J. Clim., 21 ( 9 ), 1929-1947, doi:10.1175/2007JCLI1574.1 Abstract: The impact of ocean-state estimates generated by the consortium for Estimating the Circulation and Climate of the Ocean ( ECCO ) on the low-level formatting of a copulate cosmopolitan circulation exemplary ( CGCM ) for seasonal climate forecasts is examined. The CGCM consists of the University of California, Los Angeles, Atmospheric GCM ( UCLA AGCM ) and an ECCO ocean shape of the Massachusetts Institute of Technology GCM ( MITgcm ). The forecasts correspond to ensemble seasonal worker hindcasts for the time period 1993-2001. For the forecasts, the ocean component of the CGCM is initialized in either early March or in early June using ocean states provided either by an unconstrained forward ocean integration of the MITgcm ( the “ service line ” hindcasts ) or by data-constrained ECCO results ( the “ ECCO ” hindcasts ). Forecast skill for both the baseline and the ECCO hindcasts is significantly higher than doggedness and compares well with the skill of other state-of-the art CGCM prognosis systems. For March initial conditions, the standard errors of sea surface temperature ( SST ) anomalies in ECCO hindcasts ( proportional to observed anomalies ) are improving to 1°C smaller than in the baseline hindcasts over the cardinal and eastern equatorial Pacific ( 150°-120°W ). For June initial conditions, the errors of ECCO hindcasts are up to 0.5°C smaller than in the baseline hindcasts. The smaller standard error of the ECCO hindcasts is, in part, due to a more realistic equatorial thermocline structure of the ECCO initial conditions. This analyze confirms the rate of physically coherent ocean-state appraisal for the low-level formatting of seasonal worker climate forecasts. Keywords: Hindcasts, Model low-level formatting, Ocean models, Sea surface temperature, Seasonal prediction ECCO Products Used: ECCO-KFSURL: http://journals.ametsoc.org/doi/abs/10.1175/2007JCLI1574.1 Other URLs:
Vinogradov, Sergey V; Ponte, Rui M; Heimbach, Patrick; Wunsch, Carl (2008). The mean seasonal cycle in sea level estimated from a data-constrained general circulation model, Journal of Geophysical Research: Oceans, C3 (113), 10.1029/2007JC004496. Title: The mean seasonal cycle in sea level estimated from a data-constrained general circulation model Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Vinogradov, Sergey V ; Ponte, Rui M ; Heimbach, Patrick ; Wunsch, Carl Year: 2008 Formatted Citation: Vinogradov, S. V., R. M. Ponte, P. Heimbach, and C. Wunsch, 2008 : The think of seasonal worker cycle in sea level estimated from a data-constrained general circulation exemplar. J. Geophys. Res. Ocean., 113 ( C3 ), doi:10.1029/2007JC004496 Abstract: A near-global ocean state of matter estimate over the period 1992-2004 is used to study the average seasonal worker motorbike in sea flat ζ. The express estimate combines most available observations, including all the altimetric missions, with a general circulation model in an optimization procedure. The annual cycle tends to be larger than the semi-annual one, except in tropical regions. For ball-shaped mean ζ, annual thermosteric and fresh water terms are about out-of-phase and lead to an annual bicycle of entirely a few millimeter in amplitude. regionally, surface wind stress and heat flux are the basal drivers for seasonal ζ variations in the tropics and midlatitudes, respectively, with both mechanisms playing a function at senior high school latitudes. A substantial function of the annual ζ variability can be assigned to changes in thermosteric stature in the upper 100 m in midlatitudes and 200 megabyte in the tropics. Bottom pressure unevenness is larger at high latitudes, and besides in some regions in the southerly Ocean and North Pacific. Apparent nonlinear rectification processes lead to a detectable impingement of submonthly forcing on the annual cycle in the western North Atlantic and North Pacific. early features include the significant ζ gradients associated with strong spatial unevenness in seasonal worker come on inflame flux in some western boundary regions, the damping effects of airfoil hotness flux on the seasonal cycle in the tropics, and the importance of wind drive and bottom coerce in shallow regions, which can cause differences in the seasonal worker hertz in some coastal and adjacent deep-ocean regions. Keywords: 1833 Hydroclimatology, 4532 General circulation, 4534 Hydrodynamic model, 4556 Sea level : variations and bastardly, Sea horizontal surface, climatology, seasonal worker ECCO Products Used: ECCO-V2URL: http://dx.doi.org/10.1029/2007JC004496 Other URLs:
Zhong, Min; Yan, Hao-ming (2008). Excitation of Annual Polar Wobble by Global Oceans, Chinese Astronomy and Astrophysics, 1 (32), 91-99, 10.1016/j.chinastron.2008.01.009. Title: Excitation of Annual Polar Wobble by Global Oceans Type: Journal article Publication: taiwanese Astronomy and Astrophysics Author(s): Zhong, Min ; Yan, Hao-ming Year: 2008 Formatted Citation: Zhong, M., and H. Yan, 2008 : excitement of Annual Polar Wobble by Global Oceans. chinese Astronomy and Astrophysics, 32 ( 1 ), 91-99, doi:10.1016/j.chinastron.2008.01.009 Abstract: Keywords: ECCO Products Used: ECCO-KFS ; ECCO-V1URL: http://linkinghub.elsevier.com/retrieve/pii/S0275106208000143 Other URLs:
Campin, Jean-Michel; Marshall, J; Ferreira, D (2008). Sea ice-ocean coupling using a rescaled vertical coordinate z*, Ocean Modelling, 1-2 (24), 1-14, 10.1016/j.ocemod.2008.05.005. Title: Sea ice-ocean copulate using a rescale vertical align z* Type: Journal article Publication: Ocean Modelling Author(s): Campin, Jean-Michel ; Marshall, J ; Ferreira, D Year: 2008 Formatted Citation: Campin, J., J. Marshall, and D. Ferreira, 2008 : Sea ice-ocean copulate using a rescale vertical coordinate z*. Ocean Modelling, 24 ( 1-2 ), 1-14, doi:10.1016/j.ocemod.2008.05.005 Abstract: Realistic representation of ocean methamphetamine in ocean models involves the use of a non-linear free-surface, a real number fresh water flow and notice of necessity conservation laws. We show here that these properties can be achieved in practice through use of a rescale vertical organize “ z* ” in z-coordinate models that allows one to follow undulations in the free-surface under sea frost loading. In particular, the borrowing of “ z* ” avoids the unmanageable issue of vanishing levels under midst ice. Details of the implementation within MITgcm are provided. A high resolution global ocean ocean ice simulation illustrates the robustness of the z* conceptualization and reveals a source of oceanic unevenness associated with sea ice dynamics and ice-loading effects. The use of the z* align allows one to achieve perfect conservation of fresh water, hotness and salt, as shown in widen consolidation of coupled ocean ocean ice atmospheric model. ( C ) 2008 Elsevier Ltd. All rights reserved. Keywords: standard atmosphere, boundary-conditions, circulation models, climate, conservation, formulation, free-surface, fresh-water liquefy, ocean exemplar, sea ice rink model, simulations, unevenness, vertical organize ECCO Products Used: ECCO2 URL: Other URLs:
Kohl, A; Stammer, D (2008). Decadal sea level changes in the 50-year GECCO ocean synthesis, Journal of Climate, 9 (21), 1876-1890, 10.1175/2007jcli2081.1. Title: Decadal ocean level changes in the 50-year GECCO ocean synthesis Type: Journal article Publication: Journal of Climate Author(s): Kohl, A ; Stammer, D Year: 2008 Formatted Citation: Kohl, A., and D. Stammer, 2008 : Decadal sea degree changes in the 50-year GECCO ocean deduction. J. Clim., 21 ( 9 ), 1876-1890, doi:10.1175/2007jcli2081.1 Abstract: An calculate of the time-varying ocean circulation, obtained over the period 1952-2001, is analyzed hera with respect to its decadal and longer-term changes in ocean degree. The estimate results from a synthesis of most of the ocean datasets available during this 50-yr time period with the Estimating the Circulation and Climate of the Ocean/Massachusetts Institute of Technology ( ECCO/MIT ) ocean circulation model. Over the period 1992 through 2001, the increase in thermosteric ocean tied arise on average amounts to 1.2 mm year ( -1 ) over the lead 750 meter and 1.8 millimeter year ( -1 ) over the entire water column. This corresponds to an increase in upper-ocean heat contentedness of 1.5×10 ( 22 ) J year ( -1 ) and is in agreement with the estimates of Willis et aluminum. however, over the time period 1962 through 2001 the global final thermosteric ocean level rise is estimated as 0.66 millimeter yr-1 over the top 750 megabyte, which is twice the late estimate from Antonov et aluminum. ( 0.33 millimeter year ( -1 ) ). The comparable swerve over the total water column of 0.92 mm year ( -1 ) is besides about twice their value for the layer of 0-3000 m ( 0.40 millimeter year ( -1 ) ). For the last ten, the ball-shaped heat blend into the ocean of 1.5 W thousand ( -2 ) is twice angstrom big as the holocene appraisal by Willis et aluminum. due to the heat content change in deeply layers. regional changes in sea grade are predominantly associated with an intensification of the subtropical coil circulation and a equate redistribution of heat. The horizontal advection of heat due to an addition in tip stress coil is found to explain a major fraction of the estimated regional ocean level trends over the end 40 years. however, the mechanisms appear unlike during the last ten when in some regions changes in come on estrus flux may explain deoxyadenosine monophosphate much as 50 % of the sea level changes. Keywords: altimeter, general-circulation model, heat-storage, measurements, pacific, rise, steric height, subsurface temperature, variability, bulk, world ocean ECCO Products Used: GECCO URL: Other URLs:
Chen, J. L.; Wilson, C. R. (2008). Low degree gravity changes from GRACE, earth rotation, geophysical models, and satellite laser ranging, Journal of Geophysical Research: Solid Earth, 6 (113), 1-9, 10.1029/2007JB005397. Title: Low degree gravity changes from GRACE, earth rotation, geophysical models, and satellite laser ranging Type: Journal article Publication: Journal of Geophysical Research : solid earth Author(s): Chen, J. L. ; Wilson, C. R. Year: 2008 Formatted Citation: Chen, J. L., and C. R. Wilson, 2008 : low degree graveness changes from GRACE, land rotation, geophysical models, and satellite laser ranging. Journal of Geophysical Research : solid Earth, 113 ( 6 ), 1-9, doi:10.1029/2007JB005397 Abstract: [ 1 ] Several freelancer fourth dimension serial of variations ΔC21, ΔS21, and ΔC20 in Earth ‘s gravity field are compared for the period April 2002 to May 2007. We examine estimates from the Gravity Recovery and Climate Experiment ( GRACE ), Earth rotation variations, climate models, and satellite laser range ( SLR ). recently released GRACE solutions show significant improvement proportional to earlier results, specially for ΔC21 and ΔS21. At the annual period, all estimates agree unusually well, and well correlation is found among time series at intraseasonal periods. In general, Earth rotation values for ΔC21 and ΔS21, and SLR values for ΔC20 agree best with GRACE estimates. GRACE ΔC20 time series are contaminated by aliased ocean tide model errors. SLR ΔC21 and ΔS21 time serial have been reported without an ocean perch tide ( OPT ) correction and with an older Solid Earth Pole Tide ( SEPT ) model. After correcting for OPT and SEPT deficiencies, SLR ΔC21 and ΔS21 time serial show improved agreement with other estimates. Keywords: Earth rotation, GRACE, SLR, doi:10.1029/2007JB005397, geophysical models, graveness, hypertext transfer protocol : //dx.doi.org/10.1029/2007JB005397 ECCO Products Used: ECCO-KFS URL: Other URLs:
Mazloff, M (2008). Production and analysis of an eddy-permitting Southern Ocean state estimate. Title: Production and analysis of an eddy-permitting southerly Ocean submit estimate Type: Report Publication: Author(s): Mazloff, M Year: 2008 Formatted Citation: Mazloff, M., 2008 : production and analysis of an eddy-permitting southern Ocean submit estimate. MIT-WHOI joint Program, S. M. ( 2008 ) Abstract: Keywords: ECCO Products Used: SOSE URL: Other URLs:
Göttl, Franziska (2008). Earth rotation variations from geometric, gravimetric and altimetric observations and geophysical models. Title: Earth rotation variations from geometric, hydrometric and altimetric observations and geophysical models Type: Report Publication: Author(s): Göttl, Franziska Year: 2008 Formatted Citation: Göttl, F., 2008 : earth rotation variations from geometric, hydrometric and altimetric observations and geophysical models., München, Germany ( 84 ), 16 pp. hypertext transfer protocol : //mediatum.ub.tum.de/doc/1300697/file.pdf. Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: https://mediatum.ub.tum.de/doc/1300697/file.pdf Other URLs:
Kuo, C Y; Shum, C K; Guo, J Y; Yi, Y C; Braun, A; Fukumori, I; Matsumoto, K; Sato, T; Shibuya, K (2008). Southern Ocean mass variation studies using GRACE and satellite altimetry, Earth Planets and Space, 5 (60), 477-485, 10.1186/BF03352814. Title: Southern Ocean mass pas seul studies using GRACE and satellite altimetry Type: Journal article Publication: Earth Planets and Space Author(s): Kuo, C Y ; Shum, C K ; Guo, J Y ; Yi, Y C ; Braun, A ; Fukumori, I ; Matsumoto, K ; Sato, T ; Shibuya, K Year: 2008 Formatted Citation: Kuo, C. Y. and Coauthors, 2008 : southern Ocean mass magnetic declination studies using GRACE and satellite altimetry. Earth Planets and Space, 60 ( 5 ), 477-485, doi:10.1186/BF03352814 Abstract: The southern Ocean is a major connection between the global oceans via complicated processes associated with the dissolve and accumulation of the huge Antarctic internal-combustion engine sheets and the surrounding ocean frost. The southerly Ocean ocean level is ill observed except from recent near-polar orbiting space geodetic satellites. In this sketch, the Southern Ocean mass variations at the seasonal worker scale are compared using three independent data sets : ( 1 ) the Gravity Recovery And Climate Recovery Experiment ( GRACE ) observed ocean buttocks press ( OBP ), ( 2 ) steric-corrected satellite altimetry ( ENVISAT ) and, ( 3 ) the Estimating the Circulation and Climate of the Ocean ( ECCO ) model OBP data. The stature dispute between sea tied derived from altimetry and steric sea degree contains the vertical translation of the Earth come on due to elastic load. here we provide a formulation of this loading condition which has not been considered previously in other studies and prove that it is not negligible, specially for regional studies. In this report, we foremost conduct a global comparison using steric-corrected JASON-1 altimetry with GRACE to validate our proficiency and to compare with holocene studies. The ball-shaped ocean bulk variation comparison shows excellent agreement with high correlation ( like to 0.81 ) and with discrepancies at 3-5 millimeter RMS. however, the discrepancies in the southern Ocean are much larger at 12-17 millimeter RMS. The mis-modeling of geocenter variations and the moment degree zonal harmonic ( J ( 2 ) ) degrade the accuracy of GRACE-derived mass variations, and the choice of ocean temperature data sets and neglecting the loading discipline on altimetry affect the OBP comparisons between GRACE and altimetry. This learn indicates that the satellite observations ( GRACE and ENVISAT ) are capable of providing an better constraint of oceanic mass variations in the southern Ocean. Keywords: altimetry, south-polar circumpolar current, grace, graveness, models, southern ocean, steric low-lying, variability, volume ECCO Products Used: ECCO-KFS URL: Other URLs:
Losch, Martin (2008). Modeling ice shelf cavities in a z coordinate ocean general circulation model, Journal of Geophysical Research, C8 (113), C08043, 10.1029/2007JC004368. Title: Modeling ice ledge cavities in a z align ocean general circulation mannequin Type: Journal article Publication: Journal of Geophysical Research Author(s): Losch, Martin Year: 2008 Formatted Citation: Losch, M., 2008 : Modeling ice ledge cavities in a omega coordinate ocean general circulation model. Journal of Geophysical Research, 113 ( C8 ), C08043, doi:10.1029/2007JC004368 Abstract: Processes at the frost shelf-ocean interface and in especial in frosting shelf cavities around Antarctica have an discernible consequence on the solutions of washbasin scale to global coupled ice-ocean models. Despite this, these processes are not routinely represented in global ocean and climate models. It is shown that a new ice ledge pit mannequin for omega align models can reproduce results from an intercomparison project of earlier approaches with vertical σ or isopycnic coordinates. As a proof of concept, ice shelves are incorporated in a 100-year global consolidation of a omega coordinate model. In this pretense, glacial meltwater can be traced equally far a north as 15°S. The respect effects of processes in the ice ledge cavities agree with previous results from a σ coordinate model, notably the increase in sea methamphetamine thickness. however, melt rates are overestimated probably because the parameterization of basal mellow does not suit the gloomy resoluteness of this configuration. Keywords: 1223 Ocean/Earth/atmosphere/hydrosphere/cryosphere, 4207 Arctic and Antarctic oceanography, 4255 Numerical model, 4532 General circulation, Ice ledge cavities, numeric ocean model, omega coordinates ECCO Products Used: ECCO2 ; IceSheetURL: http://dx.doi.org/10.1029/2007JC004368 Other URLs: hypertext transfer protocol : //doi.wiley.com/10.1029/2007JC004368
Quinn, Katherine J; Ponte, Rui M (2008). Estimating weights for the use of time-dependent gravity recovery and climate experiment data in constraining ocean models, Journal of Geophysical Research: Oceans, C12 (113), 10.1029/2008JC004903. Title: Estimating weights for the function of time-dependent gravity convalescence and climate experiment data in constraining ocean models Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Quinn, Katherine J ; Ponte, Rui M Year: 2008 Formatted Citation: Quinn, K. J., and R. M. Ponte, 2008 : Estimating weights for the function of time-dependent gravity convalescence and climate experiment data in constraining ocean models. J. Geophys. Res. Ocean., 113 ( C12 ), doi:10.1029/2008JC004903 Abstract: Using Gravity Recovery And Climate Experiment ( GRACE ) data to constrain ocean general circulation models requires quantitative cognition of the errors in GRACE-derived estimates of ocean bottom pressure ( petabit ) change, which for our purposes include not entirely instrument noise but besides variability not represented in the models ( for example, post-glacial rally and self-gravitation effects ). We attempt a spatial map of these errors by comparing several GRACE datum products to pb simulations from an ocean model. Uncertainties in the ball-shaped ocean base, partially related to the web fresh water flux into the ocean, and in the regional lead anomalies about that think of are considered individually. The vector sum regional error estimates ( ∼1-3 curium ), when zonally averaged, are comparable to the calibrated errors provided by the GRACE march centers, except for enhanced errors near some continental regions with high seasonal worker hydrology signals or large mass trends. Errors in the GRACE-derived values estimated from model-data differences ( ∼0.2 curium ) are besides comparable with those from the calibrate errors. For both lead and estimates, accounting for the effects of geocenter noise is significant. Replacing the C20 harmonic term in the GRACE data with estimates derived from satellite laser ranging results in significantly lower errors in the southern Ocean. We besides find lower errors at eminent latitudes when the variability of the atmospheric blackmail over the land is removed from the datum. Given the estimate errors and model-data comparisons, GRACE data should be utilitarian for constraining estimates of, peculiarly at interannual periods, but less so when considering regional petabyte variability. Keywords: 1217 Time varying gravity, 1222 Ocean monitoring with geodetic techniques, 4260 Ocean data assimilation and reanalysis, 4556 Sea charge : variations and base, errors, grace, ocean ECCO Products Used: ECCO-V2URL: http://dx.doi.org/10.1029/2008JC004903 Other URLs:
Seoane, L.; Bizouard, C.; Gambis, D. (2008). Polar motion interpretation using gravimetric observations, Proceedings of the “Journées Systèmes de Référence Spatio-temporels 2007”. Title: Polar apparent motion interpretation using hydrometric observations Type: Conference Proceedings Publication: Proceedings of the “ Journées Systèmes de Référence Spatio-temporels 2007 ” Author(s): Seoane, L. ; Bizouard, C. ; Gambis, D. Year: 2008 Formatted Citation: Seoane, L., C. Bizouard, and D. Gambis, 2008 : polar motion interpretation using hydrometric observations. Proceedings of the “ Journées Systèmes de Référence Spatio-temporels 2007 ”, Paris, France Abstract: Polar motion is interpreted as the effect of i ) the Earth ‘s inertia moment changes asso- ciated with the alleged batch term of the Earth ‘s angular momentum two ) the Earth ‘s relative angular momentum in the mundane frame. Thanks to the GRACE mission and in a lesser extent to LAGEOS missions, the mass term is determined since 2002, independently from any geophysical model. Besides the model excitations of the pivotal motion, i.e the atmospheric angular momentum ( AAM ), the Oceanic Angular Momentum ( OAM ), the Hydrological Angular Momentum ( HAM ), this hydrometric mass term is a raw kind of information which can be matched to the note excitation of the polar movement after removal of the impression of the relative angular momentum, by and large caused by the wind and the oceanic cur- rents. such comparison, already performed by respective authors, is updated for the last releases ( RL04 ) of the graveness field changes i.e. those of the GFZ, CSR, JPL and explored for the mix LAGEOS-GRACE solution of the GRGS. We confirm that a fair general agreement, specially for the y-component of the equatorial excitation. After removing the modeled oceanic and atmospheric excitations from the signals, we obtain the non-modeled excitation, by and large of hydrological nature ; this allows us to compare them to the existing hydrological models, differences might comes from others Earth ‘s phenomenon, for exemplar, earthquakes. Keywords: ECCO Products Used: ECCO-KFSURL: https://www.researchgate.net/publication/228422406_Polar_motion_interpretation_using_gravimetric_observations Other URLs: hypertext transfer protocol : //www.researchgate.net/profile/L_Seoane/publication/228422406_Polar_motion_interpretation_using_gravimetric_observations/links/54520d330cf2
Stammer, D; Park, S; Kohl, A; Lukas, R; Santiago-Mandujano, F (2008). Causes for large-scale hydrographic changes at the Hawaii Ocean time series station, Journal of Physical Oceanography, 9 (38), 1931-1948, 10.1175/2008jpo3751.1. Title: Causes for large-scale hydrographic changes at the Hawaii Ocean time series station Type: Journal article Publication: Journal of Physical Oceanography Author(s): Stammer, D ; Park, S ; Kohl, A ; Lukas, R ; Santiago-Mandujano, F Year: 2008 Formatted Citation: Stammer, D., S. Park, A. Kohl, R. Lukas, and F. Santiago-Mandujano, 2008 : Causes for large-scale hydrographic changes at the Hawaii Ocean time serial station. Journal of Physical Oceanography, 38 ( 9 ), 1931-1948, doi:10.1175/2008jpo3751.1 Abstract: Results from Estimating the Circulation and Climate of the Ocean ( ECCO ) -Scripps Institution of Oceanography ( SIO ) ball-shaped ocean state calculate, available over the 11-yr time period 1992 through 2002, are compared with autonomous observations available at the Hawaii Ocean time series station ALOHA. The comparison shows that at this position, the calculate temporal variability has some skill in simulating observe ocean variability and that the timbre of future syntheses could benefit from extra data available from the Argo net and from the prison term series observations themselves. On a decadal time scale, the influence radius of the station ALOHA T-S time series covers big parts of the tropical and subtropical Pacific Ocean and reaches even into the indian Ocean through the indonesian Throughflow. Estimated changes in sea surface acme ( SSH ) result largely from thermosteric changes ; however, nonsteric ( barotropic ) variations on the order of 1-2 curium besides contribute to SSH changes at station ALOHA. furthermore, changes of alike magnitude can be caused by changes in the salt sphere because of a quasi-biennial oscillation in the horizontal flow structure and pant of the mean brininess structure on seasonal worker and interannual time scales. The adjoint modeling framework confirms westward-propagating Rossby waves ( due to wind forcing ) and subduction of water-mass anomalies ( ascribable to surface buoyancy forcing ) as the primary mechanisms leading to observed changes of T-S structures at station ALOHA. specifically, the analysis identifies surface fresh water fluxes along the winter outcrop of intermediate waters as a primary causal agent for brininess changes at station ALOHA and wind stress forcing east of the station position as another forcing mechanism of brininess variations around the hawaiian Archipelago. Keywords: anomalies, atlantic, decadal climate unevenness, fluctuations, general-circulation, model, north pacific-ocean, rossby waves, subtropical coil, temperature, thermocline ECCO Products Used: ECCO-V1 URL: Other URLs:
Kim, S B; Fukumori, I (2008). A near uniform basin-wide sea level fluctuation over the Japan/East Sea: A semienclosed sea with multiple straits, Journal of Geophysical Research-Oceans, C6 (113), 10.1029/2007jc004409. Title: A approach undifferentiated basin-wide sea level fluctuation over the Japan/East Sea : A semienclosed ocean with multiple straits Type: Journal article Publication: Journal of Geophysical Research-Oceans Author(s): Kim, S B ; Fukumori, I Year: 2008 Formatted Citation: Kim, S. B., and I. Fukumori, 2008 : A approximate uniform basin-wide ocean level fluctuation over the Japan/East Sea : A semienclosed sea with multiple straits. J. Geophys. Res. Ocean., 113 ( C6 ), doi:10.1029/2007jc004409 Abstract: Sea level of the Japan/East Sea observed by the TOPEX/Poseidon ( T/P ) satellite altimeter is analyzed using a 1/4 degrees-resolution ocean general circulation model. A significant fraction of the Japan/East Sea sea level variability is found to be spatially uniform with periods ranging from 20 five hundred to a year. The model pretense is consistent with T/P records in terms of the basin-wide sea level fluctuation ‘s spectral energy and coherence. The simulation indicates that the changes are barotropic in nature and controlled, notably at high frequencies, by the net mass transmit through the straits of the Japan/East Sea driven by winds in the vicinity of the Korea/Tsushima and Soya Straits. A series of barotropic simulations suggest that the sea level fluctuations are the leave of a moral force balance wheel at the straits among near-strait winds, friction, and geostrophic control. The basin-wide sea tied answer is a linear principle of superposition of changes due to winds near the person straits. In detail, a basin-wide ocean level response can be established by winds near either one of the straits alone. For the specific geometry and winds, winds near the Soya Strait have a larger Strait. Keywords: atmospheric-pressure, barotropic flow, circulation, difference, geostrophic dominance, gibraltar, mediterranean sea, mannequin ECCO Products Used: URL: Other URLs:
Marshall, John; Plumb, R. Alan (2008). Atmosphere, Ocean and Climate Dynamics. Title: Atmosphere, Ocean and Climate Dynamics Type: Book Publication: Author(s): Marshall, John ; Plumb, R. Alan Year: 2008 Formatted Citation: Marshall, J., and R. A. Plumb, 2008 : Atmosphere, Ocean and Climate Dynamics. Academic Press, 344 pp. Abstract: For advance undergraduate and beginning graduate students in atmospheric, oceanic, and climate science, Atmosphere, Ocean and Climate Dynamics is an introductory casebook on the circulations of the atmosphere and ocean and their interaction, with an stress on ball-shaped scales. It will give students a good grasp of what the atmosphere and oceans look like on the large-scale and why they look that room. The character of the oceans in climate and paleoclimate is besides discussed. The combination of observations, theory and accompanying exemplifying lab experiments sets this text apart by making it accessible to students with no prior training in meteorology or oceanography. Keywords: ECCO Products Used: ECCO2 URL: Other URLs:
Utke, Jean; Naumann, Uwe; Fagan, Mike; Tallent, Nathan; Strout, Michelle; Heimbach, Patrick; Hill, Chris; Wunsch, Carl (2008). OpenAD/F: A Modular Open-Source Tool for Automatic Differentiation of Fortran Codes, ACM Trans. Math. Softw., 4 (34), 1-36, 10.1145/1377596.1377598. Title: OpenAD/F : A modular open-source cock for Automatic Differentiation of Fortran Codes Type: Journal article Publication: ACM Trans. Math. Softw. Author(s): Utke, Jean ; Naumann, Uwe ; Fagan, Mike ; Tallent, Nathan ; Strout, Michelle ; Heimbach, Patrick ; Hill, Chris ; Wunsch, Carl Year: 2008 Formatted Citation: Utke, J., U. Naumann, M. Fagan, N. Tallent, M. Strout, P. Heimbach, C. Hill, and C. Wunsch, 2008 : OpenAD/F : A modular open-source tool for Automatic Differentiation of Fortran Codes. ACM Trans. Math. Softw., 34 ( 4 ), 1-36, doi:10.1145/1377596.1377598 Abstract: Keywords: ECCO Products Used: URL: Other URLs:
Cabanes, C; Lee, T; Fu, L L (2008). Mechanisms of interannual variations of the meridional overturning circulation of the North Atlantic Ocean, Journal of Physical Oceanography, 2 (38), 467-480, 10.1175/2007jpo3726.1. Title: Mechanisms of interannual variations of the meridional overturning circulation of the North Atlantic Ocean Type: Journal article Publication: Journal of Physical Oceanography Author(s): Cabanes, C ; Lee, T ; Fu, L L Year: 2008 Formatted Citation: Cabanes, C., T. Lee, and L. L. Fu, 2008 : Mechanisms of interannual variations of the meridional overturning circulation of the North Atlantic Ocean. Journal of Physical Oceanography, 38 ( 2 ), 467-480, doi:10.1175/2007jpo3726.1 Abstract: The authors investigate the nature of the interannual variability of the meridional overthrow circulation ( MOC ) of the North Atlantic Ocean using an Estimating the Circulation and Climate of the Ocean ( ECCO ) assimilation product for the period of 1993-2003. The clock series of the first empirical orthogonal function of the MOC is found to be correlated with the North Atlantic Oscillation ( NAO ) index, while the consociate circulation anomalies correspond to cells extending over the full ocean depth. Model sensitivity experiments suggest that the wind is responsible for most of this interannual unevenness, at least south of 40 degrees N. A dynamic decomposition of the meridional streamfunction allows a far count into the mechanism. In particular, the contributions associated with 1 ) the Ekman menstruation and its depth-independent recompense, 2 ) the vertical shear flow, and 3 ) the barotropic coil flowing over zonally varying topography are examined. Ekman processes are found to dominate the shorter time scales ( 1.5-3 year ), while for longer clock time scales ( 3-10 year ) the MOC variations associated with upright fleece run are of greater importance. The latter is primarily caused by heaving of the pycnocline in the western subtropics associated with the stronger hoist wedge. ultimately, how these changes in the MOC affect the meridional heat enchant ( MHT ) is examined. It is found that overall, Ekman processes explain a larger part of interannual variability ( 3-10 year ) for MHT ( 57 % ) than for the MOC ( 33 % ). Keywords: heat-transport, model, pacific-ocean, sea-surface acme, variability ECCO Products Used: ECCO-KFS URL: Other URLs:
Wunsch, Carl (2008). Mass and volume transport variability in an eddy-filled ocean, Nature Geosci, 3 (1), 165-168, 10.1038/ngeo126. Title: Mass and book transportation variability in an eddy-filled ocean Type: Journal article Publication: Nature Geosci Author(s): Wunsch, Carl Year: 2008 Formatted Citation: Wunsch, C., 2008 : Mass and volume transport unevenness in an eddy-filled ocean. Nature Geosci, 1 ( 3 ), 165-168, doi:10.1038/ngeo126 Abstract: Keywords: ECCO Products Used: URL: http://dx.doi.org/10.1038/ngeo126 Other URLs:
Wunsch, C; Heimbach, P (2008). Reply to Saunders et al.s Comments on Decadal changes in the North Atlantic meridional overturning circulation and heat flux, Journal of Physical Oceanography, 9 (38), 2108-2110, 10.1175/2008JPO3936.1. Title: Reply to Saunders et al.s Comments on Decadal changes in the North Atlantic meridional overturning circulation and hotness blend Type: Journal article Publication: Journal of Physical Oceanography Author(s): Wunsch, C ; Heimbach, P Year: 2008 Formatted Citation: Wunsch, C., and P. Heimbach, 2008 : answer to Saunders et al.s Comments on Decadal changes in the North Atlantic meridional overturning circulation and heat flux density. Journal of Physical Oceanography, 38 ( 9 ), 2108-2110, doi:10.1175/2008JPO3936.1 Abstract: Keywords: General circulation models ECCO Products Used: URL: http://journals.ametsoc.org/doi/abs/10.1175/2008JPO3936.1 Other URLs:
Forget, Gaël; Mercier, Herlé; Ferron, Bruno (2008). Combining Argo profiles with a general circulation model in the North Atlantic. Part 2: Realistic transports and improved hydrography, between spring 2002 and spring 2003, Ocean Modelling, 1 (20), 17-34, 10.1016/j.ocemod.2007.06.002. Title: Combining Argo profiles with a cosmopolitan circulation model in the North Atlantic. Part 2 : naturalistic transports and improved hydrography, between spring 2002 and jump 2003 Type: Journal article Publication: Ocean Modelling Author(s): Forget, Gaël ; Mercier, Herlé ; Ferron, Bruno Year: 2008 Formatted Citation: Forget, G., H. Mercier, and B. Ferron, 2008 : Combining Argo profiles with a cosmopolitan circulation model in the North Atlantic. Part 2 : naturalistic transports and improved hydrography, between give 2002 and spring 2003. Ocean Modelling, 20 ( 1 ), 17-34, doi:10.1016/j.ocemod.2007.06.002 Abstract: A place of Argo profiles collected in the North Atlantic between May 2002 and April 2003 is combined with a low-resolution general circulation model ( GCM ) using the adjoint method acting. Fitting the actual hydrographic observations leads to huge improvements in the model circulation, including the sea surface height and the meridional heat transport. We find strike differences in basin-scale transports compared with former assimilation experiments that use the same GCM and a similar spatial resolution. Based on forward model studies, it is argued that these differences are due to unlike assimilation experiment durations. Over 1 year, the hydrography interpolated with the GCM from Argo profiles better represents the contemporary structures than does a long-run average climatology. The GCM dynamics are robust adequate to distinguish between contemporaneous hydrography and climatological hydrography. Keywords: 4DVAR, Argo, Data assimilation, General circulation model, In situ observations ECCO Products Used: URL: http://www.sciencedirect.com/science/article/pii/S1463500307000819 Other URLs:
Davis, Xujing Jia (2008). Numerical and theoretical investigations of North Pacific subtropical mode water with implications to Pacific climate variability. Title: Numerical and theoretical investigations of North Pacific subtropical mood urine with implications to Pacific climate unevenness Type: thesis Publication: Author(s): Davis, Xujing Jia Year: 2008 Formatted Citation: Davis, X. J., 2008 : numeric and theoretical investigations of North Pacific subtropical mood urine with implications to Pacific climate variability. hypertext transfer protocol : //digitalcommons.uri.edu/dissertations/AAI3328720/. Abstract: An investigation using a combine numerical model and theoretical approach is followed to better resolve the role of Subtropical Mode Water ( STMW ) in the exchange of data between the atmosphere and the ocean linked to climate variability in the North Pacific Ocean. In this, a gamey resolution MIT General Circulation Model ( MITgcm ) simulation is analyzed to study the formation, isolation, dispersion of STMW and identify correlations between STMW variations and established climatic signals in the Pacific washbasin. During a 171-month time period ( from January 1992 to March 2006 ), the seasonal worker unevenness is the dominant temporal variation observed. From climatological model fields, STMW exhibits distinct features in time and outer space. This can be seen more intelligibly by dividing the bicycle into three discrete time periods : the formation, the isolation and the profligacy periods. In addition to seasonality there is besides an interannual signal observed in STMW unevenness. This interannual variation pattern is connected close to the climate shifts of North Pacific with further probe showing that there is a high correlation coefficient between the STMW unevenness and the Pacific Decadal Oscillation index. To identify the mechanisms creditworthy for this interannual STMW unevenness, classical ocean thermocline theories are reviewed and STMW connections to large scale ocean circulation patterns are explored. A global geostrophic ocean model ( PGOM ) is employed as a theoretical platform for this function. specifically, numerical PGOM experiments are performed to isolate and examine in far detail, the influence of variations of the large scale wind stress model and large scale air-sea hotness flux on STMW variability. It may be gathered from these experiments that big scale wind try patterns creditworthy for Ekman pumping are necessity for the generation of STMW in this ventilate thermocline scheme in the PGOM. variability in this big scale weave stress is seen to affect the variability pattern of model STMW. Yet, results besides indicate that the amplitude of seasonal and interannual unevenness of STMW bulk is primarily dominated by the variability in the air-sea heat flux. Keywords: ECCO Products Used: ECCO2URL: https://digitalcommons.uri.edu/dissertations/AAI3328720/ Other URLs:
Volkov, Denis L.; Fu, Lee-Lueng (2008). The role of vorticity fluxes in the dynamics of the Zapiola Anticyclone, Journal of Geophysical Research: Oceans, C11 (113), 10.1029/2008JC004841. Title: The character of vorticity fluxes in the dynamics of the Zapiola Anticyclone Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Volkov, Denis L. ; Fu, Lee-Lueng Year: 2008 Formatted Citation: Volkov, D. L., and L. Fu, 2008 : The function of vorticity fluxes in the dynamics of the Zapiola Anticyclone. J. Geophys. Res. Ocean., 113 ( C11 ), doi:10.1029/2008JC004841 Abstract: The Argentine Basin in the South Atlantic Ocean is one of the most energetic regions in the ocean with complicated dynamics, which plays an important character in the ball-shaped climate. A issue of observations have discovered an intense anticyclonic coil of barotropic circulation around the Zapiola Rise in the center of the washbasin. theoretical studies have shown that the Zapiola Anticyclone represents an eddy-driven flow controlled by bottomland friction. holocene advances in high-resolution global-ocean data syntheses, performed using NASA supercomputing facilities, provide realistic simulations of the circulation and the unevenness in the Argentine Basin. Using these simulations and satellite altimeter observations, we analyzed the vorticity balance wheel of the Zapiola Anticyclone. Our results suggest the dominance of vorticity fluxes and the advection of the potential vorticity over a inhomogeneous bottom topography in determining the variability of the coil, while the affect of the local tip tension is little. The divergence of the relative vorticity anomaly advection by eddies is found to be the most important subscriber to the relative vorticity flux divergence influencing the variability of the Zapiola Anticyclone. Our results demonstrate that the relative vorticity influencing the unevenness of the anticyclone is chiefly advected from the confederacy where the northerly arm of the Antarctic Circumpolar Current at the Subpolar Front is located. Keywords: 4255 Numerical model, 4277 Time series experiments, 4512 Currents, 4520 Eddies and mesoscale processes, 4532 General circulation, Vorticity fluxes, Zapiola Anticyclone ECCO Products Used: ECCO2URL: http://dx.doi.org/10.1029/2008JC004841 Other URLs:
Danabasoglu, Gokhan; Ferrari, Raffaele; McWilliams, James C (2008). Sensitivity of an Ocean General Circulation Model to a Parameterization of Near-Surface Eddy Fluxes, Journal of Climate, 6 (21), 1192-1208, 10.1175/2007JCLI1508.1. Title: Sensitivity of an Ocean General Circulation Model to a Parameterization of Near-Surface Eddy Fluxes Type: Journal article Publication: Journal of Climate Author(s): Danabasoglu, Gokhan ; Ferrari, Raffaele ; McWilliams, James C Year: 2008 Formatted Citation: Danabasoglu, G., R. Ferrari, and J. C. McWilliams, 2008 : sensitivity of an Ocean General Circulation Model to a Parameterization of Near-Surface Eddy Fluxes. J. Clim., 21 ( 6 ), 1192-1208, doi:10.1175/2007JCLI1508.1 Abstract: A simplify version of the near-boundary eddy flux parameterization developed recently by Ferrari et alabama. has been implemented in the NCAR Community Climate System Model ( CCSM3 ) ocean component for the surface boundary only. This system includes the effects of diabatic mesoscale fluxes within the surface layer. The experiments with the new parameterization display meaning improvements compared to a control consolidation that tapers the effects of the eddies as the come on is approached. such open tapering is typical of confront implementations of eddy tape drive in some current ocean models. The comparison is besides promising versus available observations and results from an eddy-resolving exemplar. These improvements include the elimination of strong, near-surface, eddy-induced circulations and a better heat transport profile in the upper ocean. The experiments with the new scheme besides show reduced abyssal cooling and atrophied trends in the electric potential temperature drifts. furthermore, the need for any ad hoc, near-surface candle functions is eliminated. The shock of the new parameterization is by and large associated with the modified eddy-induced speed treatment near the surface. The new parameterization acts in the astuteness scope exposed to enhanced churning blend at the ocean surface. This depth crop includes the actively churning limit layer and a transition layer underneath, composed of waters intermittently exposed to mixing. The mix layer, that is, the regions of faint stratification at the ocean surface, is found to be a good proxy for the sum of the boundary level depth and transition layer thickness. Keywords: Eddies, Mesoscale processes, Ocean circulation, Surfa ECCO Products Used: URL: http://journals.ametsoc.org/doi/abs/10.1175/2007JCLI1508.1 Other URLs:
Mazloff, M R (2008). The Southern Ocean meridional overturning circulation as diagnosed from an eddy permitting state estimate. Title: The Southern Ocean meridional overturning circulation as diagnosed from an eddy allow state estimate Type: dissertation Publication: Author(s): Mazloff, M R Year: 2008 Formatted Citation: Mazloff, M. R., 2008 : The Southern Ocean meridional overturning circulation as diagnosed from an eddy let state appraisal. MIT-WHOI articulation Program, Ph.D. Abstract: Keywords: ECCO Products Used: SOSE URL: Other URLs:
Fox-Kemper, B; Menemenlis, Dimitris (2008). Can Large Eddy Simulation Techniques Improve Mesoscale Rich Ocean Models?, Ocean Modeling in an Eddying Regime, 319-337, 10.1029/177GM19. Title: Can Large Eddy Simulation Techniques Improve Mesoscale Rich Ocean Models ? Type: Book segment Publication: Ocean Modeling in an eddy government Author(s): Fox-Kemper, B ; Menemenlis, Dimitris Year: 2008 Formatted Citation: Fox-Kemper, B., and D. Menemenlis, 2008 : Can Large Eddy Simulation Techniques Improve Mesoscale Rich Ocean Models ?. Ocean Modeling in an Eddying Regime, American Geophysical Union, 319-337, doi:10.1029/177GM19 Abstract: This chapter contains sections titled : * Introduction * Nonlinear Viscosities and diffusivities * Filtering and Dynamical Adjustment * Summary and Discussion Keywords: Ocean circulation-Mathematical models, Oceanography-Mathematical models ECCO Products Used: ECCO2URL: http://dx.doi.org/10.1029/177GM19 Other URLs:
White, Laurent; Adcroft, Alistair J. (2008). A high-order finite volume remapping scheme for nonuniform grids: The piecewise quartic method (PQM), Journal of Computational Physics, 15 (227), 7394-7422, 10.1016/j.jcp.2008.04.026. Title: A high-order finite book remapping dodge for inhomogeneous grids : The piecewise biquadrate method ( PQM ) Type: Journal article Publication: Journal of Computational Physics Author(s): White, Laurent ; Adcroft, Alistair J. Year: 2008 Formatted Citation: White, L., and A. J. Adcroft, 2008 : A high-order finite book remapping outline for inhomogeneous grids : The piecewise biquadrate method acting ( PQM ). Journal of Computational Physics, 227 ( 15 ), 7394-7422, doi:10.1016/j.jcp.2008.04.026 Abstract: A hierarchy of linear high-order remapping schemes is presented and their performance with respect to accuracy and overlap rate investigated. The schemes are besides compared based on remapping experiments in closed domains. The piecewise biquadrate method ( PQM ) is presented, based on fifth-order accurate piecewise polynomials, and is motivated by the indigence to importantly improve hybrid coordinate systems of ocean climate models, which require the remapping to be conservative, monotonic and highly accurate. A limiter for this schema is amply described that never decreases the polynomial academic degree, except at the placement of extremum. We assess the function of high-order denotative and implicit ( i, compact ) estimates for the edge values and slopes needed to build the piecewise polynomials in both piecewise parabolic method ( PPM ) and PQM. It is shown that all limited PQM schemes perform importantly better than limited PPM schemes and that PQM schemes are much more cost-efficient. Keywords: Compact schemes, Finite bulk method acting, Nonuniform grids, Piecewise parabolic method ( PPM ), Piecewise biquadrate method acting ( PQM ), Reconstruction, Remapping ECCO Products Used: URL: http://www.sciencedirect.com/science/article/pii/S0021999108002593 Other URLs:
Losch, Martin; Schröder, Michael; Hohn, Sönke; Völker, Christoph (2008). High-Resolution Modelling of Phytoplankton Distribution and Adaptation, John von Neumann Institute for Computing Symposium 2008 (39), 289-296. Title: High-Resolution Modelling of Phytoplankton Distribution and Adaptation Type: Conference Proceedings Publication: John von Neumann Institute for Computing Symposium 2008 Author(s): Losch, Martin ; Schröder, Michael ; Hohn, Sönke ; Völker, Christoph Year: 2008 Formatted Citation: Losch, M., M. Schröder, S. Hohn, and C. Völker, 2008 : high-resolution Modelling of Phytoplankton Distribution and Adaptation. John von Neumann Institute for Computing Symposium 2008, 39, 289-296 pp. Abstract: A state-of-the-art eddy-resolving ocean general circulation model has been coupled to a newly developed ecosystem and biogeochemical model that attempts to describe the physiology of phytoplankton cells, their adaptation to changing external conditions and the distinguish cycle of respective phytoplankton nutrients ( C, N, Si, Fe ). In its initial state the advection of a big number of tracers in the model caused an increase in MPI-exchange costs that inhibited a good scale behavior with increasing number of processors used. This has been overcome by bundling the MPI commute for all tracers. first results from the model show a much improved representation of minor biological features, e.g. along the axis of the Antarctic Circumpolar Current, a uncouple of the C and N cycles in nitrogen-limited subpolar gyres, and an increased silicon : N proportion in iron-limited regions. Keywords: Global ocean ECCO Products Used: ECCO2 URL: Other URLs:
Corchado, Juan Manuel; Mata, Aitor (2008). Predicting the Presence of Oil Slicks After an Oil Spill, Advances in Case-Based Reasoning, 573-586, 10.1007/978-3-540-85502-6_39. Title: Predicting the presence of Oil Slicks After an oil spill Type: Book section Publication: Advances in Case-Based reasoning Author(s): Corchado, Juan Manuel ; Mata, Aitor Year: 2008 Formatted Citation: Corchado, J. M., and A. Mata, 2008 : Predicting the presence of Oil Slicks After an oil Spill. Advances in Case-Based Reasoning, Springer Berlin Heidelberg, 573-586, doi:10.1007/978-3-540-85502-6_39 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://link.springer.com/10.1007/978-3-540-85502-6_39 Other URLs:
Forget, Gaël; Ferron, Bruno; Mercier, Herlé (2008). Combining Argo profiles with a general circulation model in the North Atlantic. Part 1: Estimation of hydrographic and circulation anomalies from synthetic profiles, over a year, Ocean Modelling, 1 (20), 1-16, 10.1016/j.ocemod.2007.06.001. Title: Combining Argo profiles with a general circulation model in the North Atlantic. Part 1 : estimate of hydrographic and circulation anomalies from synthetic profiles, over a year Type: Journal article Publication: Ocean Modelling Author(s): Forget, Gaël ; Ferron, Bruno ; Mercier, Herlé Year: 2008 Formatted Citation: Forget, G., B. Ferron, and H. Mercier, 2008 : Combining Argo profiles with a cosmopolitan circulation mannequin in the North Atlantic. Part 1 : estimate of hydrographic and circulation anomalies from synthetic profiles, over a year. Ocean Modelling, 20 ( 1 ), 1-16, doi:10.1016/j.ocemod.2007.06.001 Abstract: Argo is a global array of profiling floats that provides temperature ( T ) and brininess ( S ) profiles from 2000 meter to the come on every ten days with a nominal spatial solution of 3°. hera we present idealized experiments where the adjoint method acting is used to synthesize model sets of Argo profiles with a general circulation exemplary, over a annual period, in the North Atlantic. Using a number of drifting profilers consistent with Argo deployment objectives, the simulated align permits one to identify large-scale anomalies in the hydrography and circulation, despite the bearing of a simulate eddy noise of bombastic amplitude. Model dynamics provide an objective means to distinguish eddy noise from large-scale oceanic variability, and to infer the absolute speed field ( including abyssal velocities and sea surface acme ) from sets of Argo profiles of T and S. In finical, our idealize experiments suggest that volume and heat transports can be efficiently constrained by sets of Argo profiles. Increasing the numeral of Argo floats seems to be an adequate scheme to far reduce errors in circulation estimates. Keywords: 4DVAR, Argo, Data assimilation, General circulation model, Twin experiment ECCO Products Used: URL: http://www.sciencedirect.com/science/article/pii/S1463500307000807 Other URLs:
Cheng, Xuhua; Qi, Yiquan; Zhou, Wen (2008). Trends of sea level variations in the Indo-Pacific warm pool, Global and Planetary Change, 1 (63), 57-66, 10.1016/j.gloplacha.2008.06.001. Title: Trends of ocean level variations in the Indo-Pacific warm pool Type: Journal article Publication: Global and Planetary Change Author(s): Cheng, Xuhua ; Qi, Yiquan ; Zhou, Wen Year: 2008 Formatted Citation: Cheng, X., Y. Qi, and W. Zhou, 2008 : Trends of sea level variations in the Indo-Pacific warm pool. Global and Planetary Change, 63 ( 1 ), 57-66, doi:10.1016/j.gloplacha.2008.06.001 Abstract: The long-run trends of ocean degree altitude in the Indo-Pacific warmly pool ( IPWP ) were examined using merged altimetry data, and possible mechanisms were studied using multiple datasets. Sea flat in the IPWP and the Western Pacific warm pool ( WPWP ) has distinct interannual variabilities related to ENSO ( El Niño-Southern Oscillation ) event. The beggarly sea degree in the IPWP has a rising rate of 4.5 mm/yr over the 1993-2005 menstruation, while the WPWP and the amerind Ocean warm pond ( IOWP ) have rising rate of 6.0 mm/yr and 1.6 mm/yr respectively. The trends of thermosteric sea level were besides examined using Ishii data and MITgcm assimilation data and the results indicate that thermal change of upper level has a significant contribution to the sea level variations in the WPWP. But the thermosteric sea level has little contribution to sea degree exchange in the IOWP region. apart from thermal contribution, the contribution of precipitation and vaporization to sea level change were besides examined. © 2008 Elsevier B.V. All rights reserved. Keywords: Indo-Pacific quick pool, merged altimetry data, sea flush variations, thermosteric sea level ECCO Products Used: ECCO-KFS URL: Other URLs:
Hoteit, I. (2008). A reduced-order simulated annealing approach for four-dimensional variational data assimilation in meteorology and oceanography, International Journal for Numerical Methods in Fluids, 11 (58), 1181-1199, 10.1002/fld.1794. Title: A reduced-order fake anneal approach for four-dimensional variational data assimilation in meteorology and oceanography Type: Journal article Publication: International Journal for Numerical Methods in Fluids Author(s): Hoteit, I. Year: 2008 Formatted Citation: Hoteit, I., 2008 : A reduced-order model annealing border on for four-dimensional variational data assimilation in meteorology and oceanography. International Journal for Numerical Methods in Fluids, 58 ( 11 ), 1181-1199, doi:10.1002/fld.1794 Abstract: Marketing reseach model has build from the influence of marketing 3.0 and behavior division on increase consumer value in post graduate institutions of higher education in Jakarta. Research was conducted the quantitative method acting with collateral strategic inquiry design, of structural equation hybrid mold. Samples used 140 graduate students at three institutions. Research findings showed collateral factors analysis ( CFA ) among variables pertains ; X2/ /Df ( 3.50, 4.38 and 7.01 ), GFI ( .87, .80 and .60 ) and CFI ( .94, .91 and .87 ). Furthermore Construct Reliability ( CR = .88, .86 and .93 ), were conducted authentic reconstruct variables. Moderate fit hybrid exemplary with, X2/ /Df=85.13/ 24 = 3.54, Pvalue = .00, RMSEA = .14, GFI = .88, AGFI = .78 and CFI = .95. The guess result were influenced communitization market 3.0 and behavior division on increasing consumer value with tvalue = 4.92 and 5.43 successfully to confirmed. last test between the dimensions ‘ variable and was the most superior and significant was correlated covariance matrix between behavior cleavage on increase consumer measure ( .78 ) and the dimensions of the cognition and prison term, with a valuecovariance matrix = 15.47. Keywords : market 3.0, behaviour cleavage, consumer value and superior property. Keywords: Behaviour cleavage, Consumer prize and lake superior property, market 3.0 ECCO Products Used: ECCO-V0URL: http://doi.wiley.com/10.1002/fld.1794 Other URLs:
Göttl, F; Seitz, F (2008). Contribution of Non-Tidal Oceanic Mass Variations to Polar Motion Determined from Space Geodesy and Ocean Data, Observing our Changing Earth, 439-445, 10.1007/978-3-540-85426-5_53. Title: Contribution of Non-Tidal Oceanic Mass Variations to Polar Motion Determined from Space Geodesy and Ocean Data Type: Book section Publication: Observing our Changing earth Author(s): Göttl, F ; Seitz, F Year: 2008 Formatted Citation: Göttl, F., and F. Seitz, 2008 : contribution of Non-Tidal Oceanic Mass Variations to Polar Motion Determined from Space Geodesy and Ocean Data. Observing our Changing Earth, Springer Berlin Heidelberg, 439-445, doi:10.1007/978-3-540-85426-5_53 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: http://link.springer.com/10.1007/978-3-540-85426-5_53 Other URLs:
Volkov, Denis L.; Lee, Tong; Fu, Lee-Lueng (2008). Eddy-induced meridional heat transport in the ocean, Geophysical Research Letters, 20 (35), 10.1029/2008GL035490. Title: Eddy-induced meridional heat enchant in the ocean Type: Journal article Publication: Geophysical Research Letters Author(s): Volkov, Denis L. ; Lee, Tong ; Fu, Lee-Lueng Year: 2008 Formatted Citation: Volkov, D. L., T. Lee, and L. Fu, 2008 : Eddy-induced meridional heat transport in the ocean. Geophys. Res. Lett., 35 ( 20 ), doi:10.1029/2008GL035490 Abstract: A global ocean data synthesis intersection at eddy-permitting resolution from Estimating the Circulation and Climate of the Ocean, Phase II ( ECCO2 ) project are used to estimate the oceanic eddy estrus transportation. We show that in a phone number of locations the time-mean eddy heat transportation constitutes a considerable dowry of the total time-mean heat transport, in especial, in the tropics, in the southerly Ocean and in the Kuroshio Current. This research demonstrates that the unevenness of the eddy estrus transport is a significant contributor to the variability of the total heat transportation and globally it explains about 1/3 of its variation. Eddies are besides found to explain a significant parcel of the seasonal-interannual hotness transport discrepancy. Keywords: 4215 Climate and interannual variability, 4255 Numerical model, 4520 Eddies and mesoscale processes, 4532 General circulation, eddy heat transport, oceanic heat enchant ECCO Products Used: ECCO2URL: http://dx.doi.org/10.1029/2008GL035490 Other URLs:
Kohl, A; Stammer, D (2008). Variability of the meridional overturning in the North Atlantic from the 50-year GECCO state estimation, Journal of Physical Oceanography, 9 (38), 1913-1930, 10.1175/2008jpo3775.1. Title: Variability of the meridional overrule in the North Atlantic from the 50-year GECCO state estimate Type: Journal article Publication: Journal of Physical Oceanography Author(s): Kohl, A ; Stammer, D Year: 2008 Formatted Citation: Kohl, A., and D. Stammer, 2008 : variability of the meridional overturn in the North Atlantic from the 50-year GECCO department of state estimate. Journal of Physical Oceanography, 38 ( 9 ), 1913-1930, doi:10.1175/2008jpo3775.1 Abstract: The german collaborator of the consortium for Estimating the Circulation and Climate of the Ocean ( GECCO ) provided a dynamically coherent calculate of the time-varying ocean circulation over the 50-yr period 1952-2001. The GECCO deduction combines most of the data available during the entire appraisal time period with the ECCO-Massachusetts Institute of Technology ( MIT ) ocean circulation model using its adjoint. This GECCO estimate is analyzed here for the period 1962-2001 with deference to decadal and longer-term changes of the meridional overthrow circulation ( MOC ) of the North Atlantic. A special focus is on the maximum MOC values at 25 degrees N. Over this time period, the dynamically self-consistent deduction stays within the error bars of H. L. Bryden et al., but reveals a general increase of the MOC intensity. The variability on decadal and longer time scales is decomposed into contributions from different processes. Changes in the model ‘s MOC persuasiveness are strongly influenced by the south communication of density anomalies along the western boundary originating from the subpolar North Atlantic, which are related to changes in the Denmark Strait overflow but are only marginally influenced by water batch formation in the Labrador Sea. The influence of density anomalies propagating along the southerly border of the subtropical coil associated with baroclinically unstable Rossby waves is found to be equally important. Wind-driven processes such as local Ekman ecstasy explain a smaller fraction of the variability on those long time scales. Keywords: atmospheric, boundary-layer parameterization, carbon dioxide, decadal changes, ball-shaped ocean circulation, heat-transport, labrador sea, mechanisms, model, overflow, thermohaline circulation ECCO Products Used: GECCO URL: Other URLs:
Yulaeva, E.; Kanamitsu, M.; Roads, J. (2008). The ECPC Coupled Prediction Model, Monthly Weather Review, 1 (136), 295-316, 10.1175/2007MWR1929.1. Title: The ECPC Coupled Prediction Model Type: Journal article Publication: Monthly Weather Review Author(s): Yulaeva, E. ; Kanamitsu, M. ; Roads, J. Year: 2008 Formatted Citation: Yulaeva, E., M. Kanamitsu, and J. Roads, 2008 : The ECPC Coupled Prediction Model. Monthly Weather Review, 136 ( 1 ), 295-316, doi:10.1175/2007MWR1929.1 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: http://journals.ametsoc.org/doi/abs/10.1175/2007MWR1929.1 Other URLs:
Haine, Thomas; Böning, Claus; Brandt, Peter; Fischer, Jürgen; Funk, Andreas; Kieke, Dagmar; Kvaleberg, Erik; Rhein, Monika; Visbeck, Martin (2008). North Atlantic Deep Water Formation in the Labrador Sea, Recirculation Through the Subpolar Gyre, and Discharge to the Subtropics, Arctic-Subarctic Ocean Fluxes, 653-701, 10.1007/978-1-4020-6774-7_28. Title: North Atlantic Deep Water Formation in the Labrador Sea, Recirculation Through the Subpolar Gyre, and Discharge to the Subtropics Type: Book section Publication: Arctic-Subarctic Ocean Fluxes Author(s): Haine, Thomas ; Böning, Claus ; Brandt, Peter ; Fischer, Jürgen ; Funk, Andreas ; Kieke, Dagmar ; Kvaleberg, Erik ; Rhein, Monika ; Visbeck, Martin Year: 2008 Formatted Citation: Haine, T. and Coauthors, 2008 : North Atlantic Deep Water Formation in the Labrador Sea, Recirculation Through the Subpolar Gyre, and Discharge to the Subtropics. Arctic-Subarctic Ocean Fluxes, Springer Netherlands, 653-701, doi:10.1007/978-1-4020-6774-7_28 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://link.springer.com/10.1007/978-1-4020-6774-7_28 Other URLs:
Menemenlis, Dimitris; Campin, Jean-Michel; Heimbach, Patrick; Hill, Christopher N.; Lee, Tong; Nguyen, An T.; Schodlok, Michael P.; Zhang, Hong (2008). ECCO2: High Resolution Global Ocean and Sea Ice Data Synthesis, Mercator Ocean Quarterly Newsletter (31), 13-21. Title: ECCO2 : gamey Resolution Global Ocean and Sea Ice Data Synthesis Type: Journal article Publication: Mercator Ocean Quarterly newsletter Author(s): Menemenlis, Dimitris ; Campin, Jean-Michel ; Heimbach, Patrick ; Hill, Christopher N. ; Lee, Tong ; Nguyen, An T. ; Schodlok, Michael P. ; Zhang, Hong Year: 2008 Formatted Citation: Menemenlis, D., J. Campin, P. Heimbach, C. N. Hill, T. Lee, A. T. Nguyen, M. P. Schodlok, and H. Zhang, 2008 : ECCO2 : high Resolution Global Ocean and Sea Ice Data Synthesis. Mercator Ocean Quarterly Newsletter, 31, 13-21 Abstract: Keywords: ECCO Products Used: ECCO2 ; SeaIce URL: Other URLs:
Douglass, Elizabeth (2007). Interannual variability in the North Pacific Ocean from observations and a data-assimilating model, UC San Diego Library. Title: Interannual variability in the North Pacific Ocean from observations and a data-assimilating model Type: thesis Publication: UC San Diego Library Author(s): Douglass, Elizabeth Year: 2007 Formatted Citation: Douglass, E., 2007 : Interannual unevenness in the North Pacific Ocean from observations and a data-assimilating model, UC San Diego Library Abstract: Interannual unevenness of the volume, heat, and freshwater circulation in the North Pacific Ocean is explored through a joint analysis of observations and the output from a data-assimilating model. high-resolution repeated expendable bathythermograph ( XBT ) transects provide an experimental footing for analysis of transport of volume, inflame, and fresh water in the North Pacific. The Estimating the Climate and Circulation of the Ocean ( ECCO ) consortium uses the adjoint method to constrain an ocean circulation mannequin with observations, producing dynamically coherent time-varying ocean state estimates. These state estimates provide a context in which the detailed information from the observations can be used for analysis of the mean and variability of ocean circulation. An initial analysis of volume transport in the Northeast Pacific demonstrates that comparisons between a global ocean country calculate and the data are useful in understanding the large-scale coil interactions, a well as connections with larger-scale signals. To improve the accuracy of the ocean state estimate in the North Pacific, several experiments are performed with the ECCO model in a regional setting. First, we withhold subsets of the data from the acculturation to emphasize the importance of including all available data in orderliness to obtain an accurate state estimate. individually, we determine that increasing the weights on the subsurface data increases the accuracy of the subsurface calculate with minimal price to the accuracy of the surface estimate. This new North Pacific state calculate is used to develop heat and fresh water budgets. A trans-Pacific XBT track defines the southern boundary of a closed region, and in that region the balance between cross-track advective transport and come on fluxes gives an estimate of the time-varying repositing of estrus and fresh water. The beggarly estimates of transportation and repositing compare good with previous research. In addition, estimates of the magnitude of unevenness are provided. The fresh water budget is found to be relatively stable, while the heat budget has large interannual variability. Connections between the unevenness of the heat storage in the North Pacific and the El Niño/Southern Oscillation climate signal are found. Keywords: ECCO Products Used: ECCO-V1URL: https://escholarship.org/uc/item/7sn4h40b Other URLs:
Munekane, H. (2007). Ocean mass variations from GRACE and tsunami gauges, Journal of Geophysical Research, B7 (112), B07403, 10.1029/2006JB004618. Title: Ocean mass variations from GRACE and tsunami gauges Type: Journal article Publication: Journal of Geophysical Research Author(s): Munekane, H. Year: 2007 Formatted Citation: Munekane, H., 2007 : ocean mass variations from GRACE and tsunami gauges. Journal of Geophysical Research, 112 ( B7 ), B07403, doi:10.1029/2006JB004618 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: http://doi.wiley.com/10.1029/2006JB004618 Other URLs:
Cheng, Xuhua; Qi, Yiquan (2007). Trends of sea level variations in the South China Sea from merged altimetry data, Global and Planetary Change, 3-4 (57), 371-382, 10.1016/j.gloplacha.2007.01.005. Title: Trends of ocean horizontal surface variations in the South China Sea from merged altimetry data Type: Journal article Publication: Global and Planetary Change Author(s): Cheng, Xuhua ; Qi, Yiquan Year: 2007 Formatted Citation: Cheng, X., and Y. Qi, 2007 : Trends of ocean level variations in the South China Sea from merged altimetry data. Global and Planetary Change, 57 ( 3-4 ), 371-382, doi:10.1016/j.gloplacha.2007.01.005 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: https://linkinghub.elsevier.com/retrieve/pii/S0921818107000100 Other URLs:
Ponte, R M; Quinn, K J; Wunsch, C; Heimbach, P (2007). A comparison of model and GRACE estimates of the large-scale seasonal cycle in ocean bottom pressure, Geophysical Research Letters, 9 (34), 10.1029/2007gl029599. Title: A comparison of model and GRACE estimates of the large-scale seasonal hertz in ocean buttocks blackmail Type: Journal article Publication: Geophysical Research Letters Author(s): Ponte, R M ; Quinn, K J ; Wunsch, C ; Heimbach, P Year: 2007 Formatted Citation: Ponte, R. M., K. J. Quinn, C. Wunsch, and P. Heimbach, 2007 : A comparison of model and GRACE estimates of the large-scale seasonal worker bicycle in ocean bed coerce. Geophys. Res. Lett., 34 ( 9 ), doi:10.1029/2007gl029599 Abstract: Seasonal unevenness in ocean bottom atmospheric pressure p ( bacillus ) is analyzed using GRACE ( Gravity Recovery and Climate Experiment ) data products and an optimize model solution obtained by fitting most available ocean data in a least-squares sense. The annual cycle in the spatial mean is a substantial part of the observe seasonal worker petabyte unevenness ; net fresh water input and atmospheric pressure effects are both important. For the residual spatially-varying patterns, GRACE and model results agree well over the southerly Ocean where strongest variability at both annual and semiannual periods is salute. Phase patterns tend to match well, although exemplar amplitudes are broadly weaker. considerable uncertainty remains in both GRACE and model petabit fields, judging from the ranch among available estimates. Improving the petabyte estimates requires removal of data make noise from aliasing and escape of land hydrology signals, and far optimization of the ocean model, including possible use of GRACE data to constrain the solution. Keywords: errors, mass, satellite altimetry, system, unevenness ECCO Products Used: URL: Other URLs:
Hill, Chris; Menemenlis, Dimitris; Ciotti, Bob; Henze, Chris (2007). Investigating Solution Convergence in a Global Ocean Model Using a 2048-Processor Cluster of Distributed Shared Memory Machines, Scientific Programming, 2 (15), 10.1155/2007/458463. Title: Investigating Solution Convergence in a Global Ocean Model Using a 2048-Processor Cluster of Distributed Shared Memory Machines Type: Journal article Publication: Scientific Programming Author(s): Hill, Chris ; Menemenlis, Dimitris ; Ciotti, Bob ; Henze, Chris Year: 2007 Formatted Citation: Hill, C., D. Menemenlis, B. Ciotti, and C. Henze, 2007 : Investigating Solution Convergence in a Global Ocean Model Using a 2048-Processor Cluster of Distributed Shared Memory Machines. Scientific Programming, 15 ( 2 ), doi:10.1155/2007/458463 Abstract: Keywords: ECCO Products Used: ECCO2 ; LL_hiresURL: http://dx.doi.org/10.1155/2007/458463 Other URLs:
Vinogradova, Nadya; Ponte, Rui; Stammer, Detlef (2007). Relation between sea level and bottom pressure and the vertical dependence of oceanic variability, Geophysical Research Letters (34), L03608, 10.1029/ 2006GL028588. Title: Relation between ocean level and buttocks atmospheric pressure and the vertical dependence of oceanic variability Type: Journal article Publication: Geophysical Research Letters Author(s): Vinogradova, Nadya ; Ponte, Rui ; Stammer, Detlef Year: 2007 Formatted Citation: Vinogradova, N., R. Ponte, and D. Stammer, 2007 : relation between sea level and bottom coerce and the vertical addiction of oceanic unevenness. Geophys. Res. Lett., 34, L03608, doi:10.1029/ 2006GL028588 Abstract: The relation between large-scale sea level and bottom atmospheric pressure variability is studied using long ( 50-yr ) simulations of a general circulation model under naturalistic force. Admittance and coherence analyses are used to characterize the bottom imperativeness and ocean level relationship as a serve of period, horizontal spatial scale, and location. At the model grid scale ( 1° ), bottomland press is found to be basically equivalent to sea charge at periods < 30 days, except in the tropics. This comparison still holds for longer periods ( 100 days ), but alone at high latitudes ( > 60° ) and in shallow depths ( < 200 m ). elsewhere, buttocks pressure and ocean grade fields can differ importantly. Results indicate an increase of the importance of baroclinic signals with decreasing latitude and spatial scale, with meaning baroclinic signals at intra-seasonal and longer periods present in many subtropical and mid-latitude regions. Variability is clearly baroclinic at inter-annual periods, regardless of location and spatial scale. Results have across-the-board implications for the interpretation and process of both satellite altimetry and gravity data and for their assimilation into numeric models. Keywords: ECCO Products Used: URL: https://doi.org/10.1029/2006GL028588 Other URLs:
Köhl, A; Stammer, D; Cornuelle, B (2007). Interannual to Decadal Changes in the ECCO Global Synthesis, Journal of Physical Oceanography, 2 (37), 313-337, 10.1175/JPO3014.1. Title: Interannual to Decadal Changes in the ECCO Global synthesis Type: Journal article Publication: Journal of Physical Oceanography Author(s): Köhl, A ; Stammer, D ; Cornuelle, B Year: 2007 Formatted Citation: Köhl, A., D. Stammer, and B. Cornuelle, 2007 : Interannual to Decadal Changes in the ECCO Global Synthesis. Journal of Physical Oceanography, 37 ( 2 ), 313-337, doi:10.1175/JPO3014.1 Abstract: An estimate of the time-varying ball-shaped ocean circulation for the period 1992 – 2002 was obtained by combining most of the World Ocean Circulation Experiment ( WOCE ) ocean datasets with a general circulation model on a 1 horizontal grid. The estimate precisely satisfies the model equations without artificial sources or sinks of momentum, heat, and fresh water. To bring the model into agreement with observations, its initial temperature and salt conditions were permitted to change, as were the time-dependent surface fluxes of momentum, heat, and fresh water. The appraisal of these “ control variables ” is largely reproducible with accept uncertainties in the hydrographic climatology and meteorologic analyses. The calculate time-mean horizontal transports of volume, heat, and fresh water, which were largely underestimated in the previous 2 optimization performed by Stammer et al., have converged with time-independent estimates from box inversions over most parts of the World Ocean. Trends in the model ‘s heat subject are 7 % larger than those reported by Levitus and match to a ball-shaped final heat uptake of about 1.1 W thousand ( -2 ) over the model domain. The associate model vogue in sea coat stature over the estimate time period resembles the observations from Ocean Topography Experiment ( TOPEX ) /Poseidon over most of the ball-shaped ocean. Sea surface height changes in the model are chiefly steric but show contributions from mass redistributions from the subpolar North Atlantic Ocean and the southerly Ocean to the subtropical Pacific Ocean gyres. Steric contributions are chiefly temperature based but are partially compensated by salt variation. however, the North Atlantic and the Southern Ocean reveal a net contribution of salt to large-scale ocean level variations. Keywords: climate, data assimilation, florida current, fresh-water, general-circulation exemplary, heat-transport, meridional overturning circulation, north-atlantic circulation, ocean circulation, steady-state ECCO Products Used: ECCO-V1 ; ECCO2URL: http://journals.ametsoc.org/doi/abs/10.1175/JPO3014.1 Other URLs:
Ponte, Rui M; Vinogradov, Sergey V (2007). Effects of Stratification on the Large-Scale Ocean Response to Barometric Pressure, Journal of Physical Oceanography, 2 (37), 245-258, 10.1175/JPO3010.1. Title: Effects of Stratification on the large-scale Ocean Response to Barometric pressure Type: Journal article Publication: Journal of Physical Oceanography Author(s): Ponte, Rui M ; Vinogradov, Sergey V Year: 2007 Formatted Citation: Ponte, R. M., and S. V. Vinogradov, 2007 : Effects of Stratification on the large-scale Ocean Response to Barometric Pressure. Journal of Physical Oceanography, 37 ( 2 ), 245-258, doi:10.1175/JPO3010.1 Abstract: Single-layer ( barotropic ) models have been normally used in studies of the turn back barometer effect and the oceanic reaction to atmospheric press load. The electric potential effects of stratification on this reply are explored hera using a general circulation model in a near-global world with realistic coasts and bathymetry. periodic storm by the diurnal and semidiurnal atmospheric tides and 6-hourly stochastic coerce from weather center analyses are both examined. A global dynamic reaction ( i.e., departures from inverted barometer demeanor ) is clear in the answer to atmospheric tides ; for stochastic force, the largest dynamic signals occur in shoal and semienclosed regions and at mid- and high latitudes. The charm of stratification in the dynamics is assessed by comparing open and bottom pressure signals. Baroclinic effects are broadly fallible, particularly in the reaction to the large-scale atmospheric tides. Under stochastic force, largest differences between coat and bottom pressure signals reach 10 % -20 % of the coat signals and tend to occur in regions of enhanced topographical gradients. Bottom-intensified, localized interactions with topography seem to be involved. Enhanced baroclinicity is besides seen at low latitudes, where stratification effects are besides felt in the upper ocean. general implications for modeling the ocean reply to high-frequency atmospheric and tidal force are discussed. Keywords: General circulation megabyte, Model evaluation/performance ECCO Products Used: URL: http://journals.ametsoc.org/doi/abs/10.1175/JPO3010.1 Other URLs:
Kim, S B; Lee, T; Fukumori, I (2007). Mechanisms controlling the interannual variation of mixed layer temperature averaged over the Nino-3 region, Journal of Climate, 15 (20), 3822-3843, 10.1175/Jcli4206.1. Title: Mechanisms controlling the interannual variation of mix layer temperature averaged over the Nino-3 region Type: Journal article Publication: Journal of Climate Author(s): Kim, S B ; Lee, T ; Fukumori, I Year: 2007 Formatted Citation: Kim, S. B., T. Lee, and I. Fukumori, 2007 : Mechanisms controlling the interannual variation of interracial layer temperature averaged over the Nino-3 region. J. Clim., 20 ( 15 ), 3822-3843, doi:10.1175/Jcli4206.1 Abstract: Processes controlling the interannual variation of interracial layer temperature ( MLT ) averaged over the Nino-3 world ( 5 degrees N-5 degrees S, 150 degrees-90 degrees W ) are studied using an ocean data acculturation product that covers the time period of 1993-2003. The overall poise is such that surface hotness flow opposes the MLT deepen but horizontal advection and subsurface processes assist the change. advective tendencies are estimated here as the temperature fluxes through the domain ‘s boundaries, with the boundary temperature referenced to the domain-averaged temperature to remove the addiction on temperature plate. This allows the authors to characterize external advective processes that warm or cool the water within the domain as a wholly. The zonal advective inclination is caused primarily by large-scale advection of warm-pool body of water through the western boundary of the knowledge domain. The meridional advective tendency is contributed to by and large by Ekman current advecting large-scale temperature anomalies through the southerly boundary of the sphere. Unlike many previous studies, the subsurface processes that consist of vertical mix and entrainment are explicitly evaluated. In particular, a rigorous method to estimate entrainment allows an accurate budget closure. The upright mix across the interracial level ( ML ) base has a contribution in phase with the MLT change. The entrainment inclination due to the temporal switch in ML depth is negligible compared to other subsurface processes. The entrainment tendency by vertical advection across the ML basis is dominated by large-scale changes in upwelling and the temperature of upwelling water. tropical imbalance waves ( TIWs ) leave in smaller-scale vertical advection that warms the knowledge domain during La Nina cooling events. however, such a heating tendency is overwhelmed by the cooling leaning associated with the large-scale upwelling by a divisor of 2. In drumhead, all the balance wheel terms are important in the MLT budget except the entrainment due to lateral trigger and temporal mutant in ML depth. All three advective tendencies are primarily caused by large-scale and low-frequency processes, and they assist the Nino-3 MLT change. When the advective tendencies are evaluated by spatially averaging the conventional local advection of temperature, the apparent effects of currents with spatial scales smaller than the domain ( such as TIWs ) become very important as they redistribute estrus within the Nino-3 world. As a result, for model, the average zonal advective inclination counteracts rather than assists the Nino-3 MLT change. however, such home redistribution of heat does not represent external processes that control the domain-averaged MLT. Keywords: 1997-98 el-nino, atlantic-ocean, circulation model, conceptual-model, equatorial pacific-ocean, heat-budget, function iodine, sea-surface temperature, tropical instability waves, variability ECCO Products Used: ECCO-KFS URL: Other URLs:
Suarez, Max; Trayanov, Atanas; Hill, Chris; Schopf, Paul; Vikhliaev, Yuri (2007). MAPL: a high-level programming paradigm to support more rapid and robust encoding of hierarchical trees of interacting high-performance components, Proceedings of the 2007 symposium on Component and framework technology in high-performance and scientific computing, 11-20, 10.1145/1297385.1297388. Title: MAPL : a high-level program paradigm to support more rapid and full-bodied encoding of hierarchical trees of interacting high-performance components Type: Generic Publication: Proceedings of the 2007 symposium on Component and framework technology in high-performance and scientific calculate Author(s): Suarez, Max ; Trayanov, Atanas ; Hill, Chris ; Schopf, Paul ; Vikhliaev, Yuri Year: 2007 Formatted Citation: Suarez, M., A. Trayanov, C. Hill, P. Schopf, and Y. Vikhliaev, 2007 : MAPL : a high-level programming prototype to support more rapid and robust encode of hierarchical trees of interacting high-performance components. Proceedings of the 2007 symposium on Component and model technology in high-performance and scientific computing ACM, Montreal, Quebec, Canada, 11-20 pp. doi:10.1145/1297385.1297388. Abstract: Keywords: ECCO Products Used: URL: Other URLs:
Danabasoglu, Gokhan; Marshall, John (2007). Effects of vertical variations of thickness diffusivity in an ocean general circulation model, Ocean Modelling, 2 (18), 122-141, 10.1016/j.ocemod.2007.03.006. Title: Effects of vertical variations of thickness diffusivity in an ocean general circulation exemplar Type: Journal article Publication: Ocean Modelling Author(s): Danabasoglu, Gokhan ; Marshall, John Year: 2007 Formatted Citation: Danabasoglu, G., and J. Marshall, 2007 : Effects of vertical variations of thickness diffusivity in an ocean general circulation model. Ocean Modelling, 18 ( 2 ), 122-141, doi:10.1016/j.ocemod.2007.03.006 Abstract: The effects of a prescribed surface intensification of the thickness ( and isopycnal ) diffusivity on the solutions of an ocean general circulation model are documented. The model is the coarse resolution version of the ocean component of the National Center for Atmospheric Research ( NCAR ) Community Climate System Model interpretation 3 ( CCSM3 ). Guided by the results of Ferreira et aluminum. ( 2005 ) [ Ferreira, D., Marshall, J., Heimbach, P., 2005. Estimating eddy stresses by fitting dynamics to observations using a residual-mean ocean circulation model and its adjoint. J. Phys. Oceanogr. 35, 1891-1910. ] we employ a vertical dependence of the diffusivity which varies with the stratification, N2, and is therefore large in the upper ocean and small in the abyss. We experiment with vertical variations of diffusivity which are deoxyadenosine monophosphate large as 4000 m2 s−1 within the open diabatic level, diminishing to 400 m2 s−1 or then by a astuteness of 2 kilometer. The newly solutions compare more favorably with the available observations than those of the control which uses a constant value of 800 m2 s−1 for both thickness and isopycnal diffusivities. These include an improved representation of the vertical structure and transport of the eddy-induced speed in the upper-ocean North Pacific, a reduce warm bias in the amphetamine ocean, including the equatorial Pacific, and improved southerly heat transport in the low- to mid-latitude Southern Hemisphere. There is besides a modest enhancement of abyssal stratification in the southern Ocean. Keywords: Mesoscale eddy parameterization, Ocean general circulation mannequin, Vertically varying thickness diffusivity ECCO Products Used: URL: http://www.sciencedirect.com/science/article/pii/S1463500307000431 Other URLs:
Wunsch, Carl (2007). The past and future ocean circulation from a contemporary perspective, Ocean Circulation: Mechanisms and Impacts-Past and Future Changes of Meridional Overturning, 53-74, 10.1029/173GM06. Title: The past and future ocean circulation from a contemporary position Type: Book section Publication: Ocean Circulation : Mechanisms and Impacts-Past and Future Changes of Meridional Overturning Author(s): Wunsch, Carl Year: 2007 Formatted Citation: Wunsch, C., 2007 : The past and future ocean circulation from a contemporary position. ocean circulation : Mechanisms and Impacts-Past and Future Changes of Meridional Overturning, American Geophysical Union, 53-74, doi:10.1029/173GM06 Abstract: This chapter contains sections titled : * Introduction * A Bit of History * The Thermal Wind, Levels-of-no-Motion, Property Transports * The Steadiness Assumption * Model Problems * Specific Paleoceanographic Concerns * Concluding Remarks Keywords: Meridional overturn circulation ECCO Products Used: URL: http://dx.doi.org/10.1029/173GM06 Other URLs: hypertext transfer protocol : //www.agu.org/books/gm/v173/173GM06/173GM06.shtml
Mikaloff Fletcher, S E; Gruber, N; Jacobson, A R; Gloor, M; Doney, S C; Dutkiewicz, Stephanie; Gerber, M; Follows, Michael J.; Joos, F; Lindsay, K; Menemenlis, Dimitris; Mouchet, A; Müller, S A; Sarmiento, J L (2007). Inverse estimates of the oceanic sources and sinks of natural CO2 and the implied oceanic carbon transport, Global Biogeochemical Cycles, 1 (21), 10.1029/2006GB002751. Title: Inverse estimates of the oceanic sources and sinks of natural CO2 and the incriminate oceanic carbon paper transport Type: Journal article Publication: Global Biogeochemical Cycles Author(s): Mikaloff Fletcher, S E ; Gruber, N ; Jacobson, A R ; Gloor, M ; Doney, S C ; Dutkiewicz, Stephanie ; Gerber, M ; Follows, Michael J. ; Joos, F ; Lindsay, K ; Menemenlis, Dimitris ; Mouchet, A ; Müller, S A ; Sarmiento, J L Year: 2007 Formatted Citation: Mikaloff Fletcher, S. E. and Coauthors, 2007 : inverse estimates of the oceanic sources and sinks of lifelike CO2 and the imply oceanic carbon paper transportation. Global Biogeochemical Cycles, 21 ( 1 ), doi:10.1029/2006GB002751 Abstract: We use an inverse method to estimate the global-scale pattern of the air-sea liquefy of natural CO2, i, the part of the CO2 flux due to the natural carbon motorbike that already existed in preindustrial times, on the basis of ocean interior observations of dissolve inorganic carbon ( DIC ) and other tracers, from which we estimate ΔCgasex, i.e., the part of the detect DIC that is due to the gas switch over of natural CO2. We employ a suite of 10 different Ocean General Circulation Models ( OGCMs ) to quantify the error arising from uncertainties in the model transport required to link the inner ocean observations to the surface flux. The results from the contributing OGCMs are weighted using a model skill score based on a comparison of each model ‘s simulated natural radiocarbon with observations. We find a traffic pattern of air-sea flux of natural CO2 characterized by outgassing in the southern Ocean between 44°S and 59°S, vigorous uptake at midlatitudes of both hemispheres, and potent outgassing in the tropics. In the Northern Hemisphere and the tropics, the inverse estimates broadly agree closely with the natural CO2 flux density results from forth simulations of match OGCM-biogeochemistry models undertaken as part of the second phase of the Ocean Carbon Model Intercomparison Project ( OCMIP-2 ). The OCMIP-2 simulations find far less air-sea exchange than the inversion confederacy of 20°S, but more holocene forward OGCM studies are in better agreement with the inverse estimates in the Southern Hemisphere. The hard source and sink pattern south of 20°S was not apparent in an earlier inversion study, because the choice of region boundaries led to a partial cancellation of the sources and sinks. We show that the inversely estimated flux practice is intelligibly traceable to gradients in the observe ΔCgasex, and that it is relatively insensitive to the choice of OGCM or potential biases in ΔCgasex. Our inverse estimates imply a southerly interhemispheric transportation of 0.31 ± 0.02 Pg C yr−1, most of which occurs in the Atlantic. This is well smaller than the 1 Pg C yr−1 of Northern Hemisphere uptake that has been inferred from atmospheric CO2 observations during the 1980s and 1990s, which supports the guess of a Northern Hemisphere mundane slump. Keywords: 4504 Air/sea interactions, 4805 Biogeochemical cycles, 4806 Carbon cycle, 4845 Nutrients and nutrient cycle, air-sea CO2 change, and modelin, natural carbon cycle, ocean inversion, processes ECCO Products Used: ECCO-V2URL: http://dx.doi.org/10.1029/2006GB002751 Other URLs:
Penven, Pierrick; Tan, Thi-anh (2007). ROMSTOOLS User ’ s Guide. Title: ROMSTOOLS User ’ s Guide Type: Report Publication: Author(s): Penven, Pierrick ; Tan, Thi-anh Year: 2007 Formatted Citation: Penven, P., and T. Tan, 2007 : ROMSTOOLS User ‘ south Guide., Paris, France ftp : //ftp-futuna1.legos.obs-mip.fr/pub/romsagrif/DATA_ROMS/papers/doc.pdf. Abstract: Keywords: ECCO Products Used: ECCO-V0URL: ftp://ftp-futuna1.legos.obs-mip.fr/pub/romsagrif/DATA_ROMS/papers/doc.pdf Other URLs:
Ponte, Rui M; Wunsch, Carl; Stammer, Detlef (2007). Spatial Mapping of Time-Variable Errors in Jason-1 and TOPEX/Poseidon Sea Surface Height Measurements, Journal of Atmospheric and Oceanic Technology, 6 (24), 1078-1085, 10.1175/JTECH2029.1. Title: Spatial Mapping of Time-Variable Errors in Jason-1 and TOPEX/Poseidon Sea Surface Height Measurements Type: Journal article Publication: Journal of Atmospheric and Oceanic Technology Author(s): Ponte, Rui M ; Wunsch, Carl ; Stammer, Detlef Year: 2007 Formatted Citation: Ponte, R. M., C. Wunsch, and D. Stammer, 2007 : spatial Mapping of Time-Variable Errors in Jason-1 and TOPEX/Poseidon Sea Surface Height Measurements. Journal of Atmospheric and Oceanic Technology, 24 ( 6 ), 1078-1085, doi:10.1175/JTECH2029.1 Abstract: Fitting ocean models to altimeter ocean surface height ( SSH ) measurements requires cognition of instrument noise ( radar noise, sea state of matter bias, path stay corrections, and scope errors ) and “ representation ” errors related to SSH signals ( for example, tidal or pressure driven ) not computed in the models. Comparisons between the freelancer Ocean Topography Experiment ( TOPEX ) /Poseidon and Jason-1 altimetric missions when they were in identical orbits show that point by degree the data are consistent within the mission specifications of about 3-cm rms, but large-scale dependences exist in the datum differences, and these are both ill known and capable of introducing major errors into oceanic submit estimates. hera the authors focus on the time-variable component of the spatially pendent errors. The analysis reveals errors ranging from 2 centimeter in the Tropics to 4 cm at mid- and high latitudes and approximately reproducible with a dependence of instrument noise on significant wave altitude. analysis of the representation errors suggests that, over the thick ocean, uncertainties associated with the simplifying assumption of an invert barometer reception to pressure loading are larger than the remaining errors in modeling the large-scale tides. Over extensive regions, however, errors associated with eddy signals missing in coarse settlement models dominate. Obtaining a more quantitative estimate of the latter errors remains a challenge. Keywords: Ocean models, Remote detection, Satellites ECCO Products Used: ECCO-V2 ; ECCO2URL: http://journals.ametsoc.org/doi/abs/10.1175/JTECH2029.1 Other URLs:
Fernández, L. I.; Schuh, H.; Schmidt, M.; Seitz, F. (2007). Effects of inter-annual water storage variations on polar motion, Geophysical Journal International, 1 (169), 12-18, 10.1111/j.1365-246X.2006.03304.x. Title: Effects of inter-annual water system storage variations on polar motion Type: Journal article Publication: Geophysical Journal International Author(s): Fernández, L. I. ; Schuh, H. ; Schmidt, M. ; Seitz, F. Year: 2007 Formatted Citation: Fernández, L. I., H. Schuh, M. Schmidt, and F. Seitz, 2007 : Effects of inter-annual water storage variations on arctic motion. Geophysical Journal International, 169 ( 1 ), 12-18, doi:10.1111/j.1365-246X.2006.03304.x Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: https://academic.oup.com/gji/article-lookup/doi/10.1111/j.1365-246X.2006.03304.x Other URLs:
Masaki, Yoshimitsu (2007). Expected Seasonal Excitations of Earth Rotation by Unmodeled Geophysical Fluids, Bulletin of the Geographical Survey Institute (54), 65-73. Title: Expected Seasonal Excitations of Earth Rotation by Unmodeled Geophysical Fluids Type: Journal article Publication: Bulletin of the Geographical Survey Institute Author(s): Masaki, Yoshimitsu Year: 2007 Formatted Citation: Masaki, Y., 2007 : Expected seasonal worker Excitations of Earth Rotation by Unmodeled Geophysical Fluids. Bulletin of the Geographical Survey Institute, 54, 65-73, hypertext transfer protocol : //www.gsi.go.jp/common/000001215.pdf Abstract: We compare modeled ( atmospheric and oceanic ) seasonal excitations of the Earth rotation with the observe ones and estimate expected seasonal worker excitations from unmodeled geophysical fluids, primarily attributable to the hydrologic excitations. Through budget analysis of the seasonal excitations, maximal deficits in geophysical excitations occur in boreal spring to summer. If we assume a mass source on the earth to compensate the deficits, a positive mass surfeit is expected around longitudes 90°E to 120°E or from 60°W to 90°W. notice of the Earth rotation is useful for constraining geophysical excitations with some errors. The interannual unevenness in seasonal excitations besides affects the estimate of Chandler parameters. Keywords: ECCO Products Used: ECCO-KFSURL: http://www.gsi.go.jp/common/000001215.pdf Other URLs:
Losch, Martin; Heimbach, Patrick (2007). Adjoint sensitivity of an ocean general circulation model to bottom topography, Journal of Physical Oceanography, 2 (37), 377-393, Doi 10.1175/Jpo3017.1. Title: Adjoint sensitivity of an ocean general circulation model to bottom topography Type: Journal article Publication: Journal of Physical Oceanography Author(s): Losch, Martin ; Heimbach, Patrick Year: 2007 Formatted Citation: Losch, M., and P. Heimbach, 2007 : Adjoint sensitivity of an ocean general circulation model to bottom topography. Journal of Physical Oceanography, 37 ( 2 ), 377-393, department of the interior : Doi 10.1175/Jpo3017.1 Abstract: Bottom topography, or more by and large the geometry of the ocean basins, is an authoritative component in numeral ocean model. With the help of an adjoint model, it is shown that scalar diagnostics or aim functions in a coarse-resolution model, such as the conveyance through Drake Passage, the strength of the Atlantic Ocean meridional revolutionize circulation, the Deacon cell, and the meridional hotness transmit across 32 S, are sensitive to bottom topography deoxyadenosine monophosphate much as they are to surface boundary conditions. For example, adjoint topography sensitivities of the tape drive through Drake Passage are large in choke-point areas such as the Crozet – Kerguelen Plateau and south of New Zealand ; the Atlantic meridional overturning circulation is medium to topography in the western boundary region of the North Atlantic Ocean and along the Scotland – Iceland Ridge. many sensitivities are connected to steep topography and can be interpreted in terms of bottom class stress, that is, the merchandise of bottom press and topography gradient. The adjoint sensitivities are found to agree with steer disturbance methods with deviations smaller than 30 % for significant perturbations on time scales of 100 yr, so that the assumption of quasi one-dimensionality that is implicit in the adjoint method holds. The horizontal resolution of the numeric exemplar affects the sensitivities to bottom topography, but large-scale patterns and the overall impingement of changes in topography appear to be robust. The relative impact of changes in topography and open limit conditions on the model circulation is estimated by multiplying the adjoint sensitivities with assume uncertainties. If the uncertainties are correlated in space, changing the surface boundary conditions has a larger impact on the scalar diagnostics than topography does, but the effects can locally be on the same order of order of magnitude if uncorrelated uncertainties are assumed. In either case, bottom topography variations within their prior uncertainties affect the solution of an ocean circulation model. To this extent, including topography in the control vector can be expected to compensate for identifiable model errors and, frankincense, to improve the solutions of estimate problems. Keywords: annual-mean climatology, south-polar circumpolar stream, coarse-resolution, geopotential-coordinate models, heat-transport, north-atlantic circulation, overturning circulation, southern-ocean, tropical pacific-ocean, variational data assimilation ECCO Products Used: adjoint URL: Other URLs:
Zlotnicki, V; Wahr, J; Fukumori, I; Song, Y T (2007). Antarctic circumpolar current transport variability during 2003-05 from GRACE, Journal of Physical Oceanography, 2 (37), 230-244, 10.1175/Jpo3009.1. Title: Antarctic circumpolar current transport unevenness during 2003-05 from GRACE Type: Journal article Publication: Journal of Physical Oceanography Author(s): Zlotnicki, V ; Wahr, J ; Fukumori, I ; Song, Y T Year: 2007 Formatted Citation: Zlotnicki, V., J. Wahr, I. Fukumori, and Y. T. Song, 2007 : antarctic circumpolar current transmit unevenness during 2003-05 from GRACE. Journal of Physical Oceanography, 37 ( 2 ), 230-244, doi:10.1175/Jpo3009.1 Abstract: Gravity Recovery and Climate Experiment ( GRACE ) gravity data spanning January 2003 – November 2005 are used as proxies for ocean bottom atmospheric pressure ( BP ) averaged complete 1 month, ball-shaped Gaussian caps 500 kilometer in spoke, and along paths bracketing the Antarctic Circumpolar Current ‘s assorted fronts. The GRACE BP signals are compared with those derived from the Estimating the Circulation and Climate of the Ocean ( ECCO ) ocean modeling – assimilation arrangement, and to a non-Boussinesq adaptation of the Regional Ocean Model System ( ROMS ). The discrepancy found between GRACE and the models is 1.7 curium ( H2O ) ( 1 centimeter ( H2O ) alike to 1 hPa ), slightly lower than the 1.9 centimeter ( H2O ) estimated by the authors independently from generation of GRACE errors. The northerly signals are watery and uncorrelated among basins. The southern signals are solid, with a common seasonality. The seasonal worker cycle GRACE data observed in the Pacific and indian Ocean sectors of the ACC are reproducible, with annual and semiannual amplitudes of 3.6 and 0.6 curium ( H2O ) ( 1.1 and 0.6 centimeter ( H2O ) with ECCO ), the average over the entire southerly path peaks ( stronger ACC ) in the southern winter, on days of class 197 and 97 for the annual and semiannual components, respectively ; the Atlantic Ocean annual bill is 20 days early. An approximate conversion factor of 3.1 Sv ( Sv equivalent to 106 megabyte ( 3 ) mho ( -1 ) ) of barotropic ecstasy unevenness per centimeter ( H2O ) of BP change is estimated. Wind stress data time series from the Quick Scatterometer ( QuikSCAT ), averaged monthly, zonally, and over the latitude set 40 degrees – 65 degrees S, are besides constructed and subsampled at the lapp months as with the GRACE datum. The annual and semiannual harmonics of the wind stress top out on days 198 and 82, respectively. A decreasing drift over the 3 year is observed in the three data types. Keywords: annular modality, bottom pressure measurements, climate experiment, drake passage, earth, ball-shaped ocean circulation, low-lying, surface, time-variable gravity, wind ECCO Products Used: ECCO-KFS URL: Other URLs:
Forget, G; Wunsch, C (2007). Estimated global hydrographic variability, Journal of Physical Oceanography, 8 (37), 1997-2008, 10.1175/jpo3072.1. Title: Estimated ball-shaped hydrographic variability Type: Journal article Publication: Journal of Physical Oceanography Author(s): Forget, G ; Wunsch, C Year: 2007 Formatted Citation: Forget, G., and C. Wunsch, 2007 : Estimated ball-shaped hydrographic unevenness. Journal of Physical Oceanography, 37 ( 8 ), 1997-2008, doi:10.1175/jpo3072.1 Abstract: An estimate is made of the cubic global oceanic temperature and brininess unevenness, omitting the seasonal worker bicycle, both as a major descriptive element of the ocean circulation and for practice in the error estimates of department of state appraisal. diachronic erformance of GOhydrography, late datum from the World Ocean Circulation Experiment, and Argo profile data are all used. Root-mean-square vertical displacements in the upper 300 thousand of the ocean are generally smaller than 50 thousand, except in energetic boundary currents and in the North Atlantic subpolar coil. Variability in temperature and salt is strongly correlated below the top 100 m. Salinity contributions to sea come on stature variability appear more meaning at low latitudes than expected, possibly resulting from advective and diffusing processes. Results are by and large reproducible with altimetric unevenness under two dim-witted kinematic hypotheses, and much of the observe structure coincides with known dynamic features. A large fraction of the sea airfoil height variability is coherent with the hypothesis of laterality of the first baroclinic mode. Keywords: circulation, energy, height, ocean, pacific, scales, temporal-changes, thermocline ECCO Products Used: ECCO2 ; LL_hires URL: Other URLs:
Sachs, Julian P. (2007). Cooling of Northwest Atlantic slope waters during the Holocene, Geophysical Research Letters, 3 (34), L03609, 10.1029/2006GL028495. Title: Cooling of Northwest Atlantic slope waters during the Holocene Type: Journal article Publication: Geophysical Research Letters Author(s): Sachs, Julian P. Year: 2007 Formatted Citation: Sachs, J. P., 2007 : cool of Northwest Atlantic slope waters during the Holocene. Geophys. Res. Lett., 34 ( 3 ), L03609, doi:10.1029/2006GL028495 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1029/2006GL028495 Other URLs:
Johnson, E S; Bonjean, F; Lagerloef, G S E; Gunn, J T; Mitchum, G T (2007). Validation and error analysis of OSCAR sea surface currents, Journal of Atmospheric and Oceanic Technology, 4 (24), 688-701, 10.1175/jtech1971.1. Title: Validation and error analysis of OSCAR sea surface currents Type: Journal article Publication: Journal of Atmospheric and Oceanic Technology Author(s): Johnson, E S ; Bonjean, F ; Lagerloef, G S E ; Gunn, J T ; Mitchum, G T Year: 2007 Formatted Citation: Johnson, E. S., F. Bonjean, G. S. E. Lagerloef, J. T. Gunn, and G. T. Mitchum, 2007 : establishment and error analysis of OSCAR sea surface currents. Journal of Atmospheric and Oceanic Technology, 24 ( 4 ), 688-701, doi:10.1175/jtech1971.1 Abstract: Comparisons of OSCAR satellite- derived sea surface currents with in situ data from moored current meters, drifters, and shipboard current profilers indicate that OSCAR soon provides accurate time means of zonal and meridional currents, and in the near- equatorial region sanely accurate time variability ( correlation = 0.5 – 0.8 ) of zonal currents at periods arsenic short-change as 40 days and meridional wavelengths deoxyadenosine monophosphate short as 8. At latitudes higher than 10 the zonal current correlation remains estimable, but OSCAR amplitudes diminish unrealistically. Variability of meridional currents is ailing reproduced, with hard diminished amplitudes and reduce correlations relative to those for zonal speed on the equator. OSCAR ‘s RMS differences from vagrant velocities are very exchangeable to those experienced by the ECCO ( Estimating the Circulation and Climate of the Ocean ) data- assimilating models, but OSCAR by and large provides a larger ocean- correlate bespeak, which enhances its ratio of estimated bespeak over noise. several opportunities exist for humble improvements in OSCAR fidelity even with presently available datasets. Keywords: altimetry, equatorial pacific, in-situ, model, ocean circulation, topex/poseidon, speed ECCO Products Used: ECCO-KFS ; ECCO-V1 URL: Other URLs:
Ma, J; Zhou, Y H; Liao, D C; Chen, J L (2007). Excitation of annual polar motion by the Pacific, Atlantic and Indian Oceans, Chinese Journal of Astronomy and Astrophysics, 6 (7), 831-838, 10.1088/1009-9271/7/6/11. Title: Excitation of annual arctic motion by the Pacific, Atlantic and indian Oceans Type: Journal article Publication: Chinese Journal of Astronomy and Astrophysics Author(s): Ma, J ; Zhou, Y H ; Liao, D C ; Chen, J L Year: 2007 Formatted Citation: Ma, J., Y. H. Zhou, D. C. Liao, and J. L. Chen, 2007 : excitement of annual polar gesticulate by the Pacific, Atlantic and indian Oceans. chinese Journal of Astronomy and Astrophysics, 7 ( 6 ), 831-838, doi:10.1088/1009-9271/7/6/11 Abstract: The global oceans play crucial roles in exciting the annual arctic gesticulate besides the air. however, it is still unclear about how boastfully the regional oceans contribute to the annual pivotal apparent motion. We investigate systemically the contributions of the Pacific, Atlantic and amerind Oceans to the excitation of the annual polar apparent motion, based on the output data of ocean current speed field and ocean penetrate press field from “ Estimating the Circulation and Climate of the Ocean ( ECCO ) ” ocean circulation model over the menstruation 1993-2005. The leave shows that due to its particular location and human body, the Atlantic Ocean makes a less significant contribution to the x-component of the annual polar gesticulate excitation than the Pacific and amerind Oceans, while all these three oceans contribute to the y-component of the annual diametric motion excitation to some extent. Keywords: ( OAMF ), annual diametric gesticulate, atmospheric angular momentum function ( AAMF ), atmospheric angular-momentum, land rotation, excitement, model, oceanic angular momentum function, shimmy ECCO Products Used: URL: Other URLs:
Gebbie, Geoffrey (2007). Does eddy subduction matter in the northeast Atlantic Ocean?, Journal of Geophysical Research: Oceans, C6 (112), 10.1029/2006JC003568. Title: Does eddy subduction count in the northeast Atlantic Ocean ? Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Gebbie, Geoffrey Year: 2007 Formatted Citation: Gebbie, G., 2007 : Does eddy subduction topic in the northeast Atlantic Ocean ? J. Geophys. Res. Ocean., 112 ( C6 ), doi:10.1029/2006JC003568 Abstract: Mesoscale eddies are an significant subscriber to subduction in the Gulf Stream region and the Antarctic Circumpolar Current, but is eddy subduction besides authoritative in the relatively quiescent interior of the world ‘s subtropical gyres ? Observations from the Subduction Experiment of the northeast Atlantic do not have the spatial resolution necessary to calculate eddy subduction and answer this question. regional numerical models can diagnose subduction, but their representativeness is unknown. furthermore, urine mass budgets in an open-ocean domain show that the model properties of subducted water immediately depend upon changeable open-boundary conditions and come on fluxes. To remedy these problems, a submit appraisal of the ocean circulation is formed by constraining an eddy-permitting general circulation model to observations by adjusting the model parameters within their doubt. The resulting estimate is self-consistent with the equations of gesticulate and has the necessity resolution for diagnosing subduction. In the northeast Atlantic during 1991-1993, the time-variable circulation contributes less than 1 Sv of net subduction, while the total subduction is 4 Sv. Eddy book fluxes of 40 m/yr in the North Equatorial Current and the Azores Current, however, are significant and rival the subduction by Ekman pumping locally. Furthermore, a express calculate at 1/6° resolution has 2-3 Sv more subduction in the concentration bands centered around σ = 24.0 kg/m3 and σ = 26.0 kg/m3 than a 2° state of matter calculate. This result implies that the inability to accurately simulate mesoscale phenomena and come on fluxes in climate models would lead to an collection of errors in urine mass properties over 10-20 years, even in the interior of the subtropical coil. Keywords: 4255 Numerical model, 4260 Ocean data acculturation and reanalysis, 4504 Air/sea interactions, 4520 Eddies and mesoscale processes, 4528 Fronts and jets, mesoscale eddies, express estimate, subduction ECCO Products Used: URL: http://dx.doi.org/10.1029/2006JC003568 Other URLs:
Fenoglio-Marc, L; Kusche, J; Becker, M; Fukumori, I (2007). Comment on “On the steric and mass-induced contributions to the annual sea level variations in the Mediterranean Sea’’ by David Garcia et al., Journal of Geophysical Research-Oceans, C12 (112), 10.1029/2007jc004196. Title: Comment on “ On the steric and mass-induced contributions to the annual sea tied variations in the Mediterranean Sea ’ ’ by David Garcia et alabama. Type: Journal article Publication: Journal of Geophysical Research-Oceans Author(s): Fenoglio-Marc, L ; Kusche, J ; Becker, M ; Fukumori, I Year: 2007 Formatted Citation: Fenoglio-Marc, L., J. Kusche, M. Becker, and I. Fukumori, 2007 : comment on “ On the steric and mass-induced contributions to the annual sea floor variations in the Mediterranean Sea ” by David Garcia et alabama. J. Geophys. Res. Ocean., 112 ( C12 ), doi:10.1029/2007jc004196 Abstract: Keywords: grace, model, temperature, time-variable gravity, urine ECCO Products Used: ECCO-KFS URL: Other URLs:
Schrama, E. J.O.; Visser, P. N.A.M. (2007). Accuracy assessment of the monthly GRACE geoids based upon a simulation, Journal of Geodesy, 1 (81), 67-80, 10.1007/s00190-006-0085-1. Title: Accuracy appraisal of the monthly GRACE geoids based upon a simulation Type: Journal article Publication: Journal of Geodesy Author(s): Schrama, E. J.O. ; Visser, P. N.A.M. Year: 2007 Formatted Citation: Schrama, E. J., and P. N. Visser, 2007 : Accuracy assessment of the monthly GRACE geoids based upon a simulation. Journal of Geodesy, 81 ( 1 ), 67-80, doi:10.1007/s00190-006-0085-1 Abstract: The purpose of this wallpaper is to demonstrate the impression of geophysical background model errors that affects temporal graveness solutions provided by the Gravity Recovery And Climate Experiment ( GRACE ). initial performance estimates by Dickey et aluminum. ( 1997 ) suggested a formal geoid RMS erroneousness better than 0.1 millimeter up to ball-shaped harmonic degree 5. now that the GRACE graveness models and data are available, it is discernible that these original expectations were besides optimistic. Our hypothesis is that this is partially explained by errors in geophysical background models that need to be applied in the GRACE data decrease, and that this impression was not considered by Dickey et alabama. ( 1997 ). We discuss the results of a closed-loop simulation, where satellite trajectory prediction software is used for the generation of GRACE range-rate data and GRACE orbit solutions with the aid of the Global Positioning System ( GPS ). During the convalescence step in our closed-loop model, we show that simulated pain signals ( based on tide and air atmospheric pressure model differences ) map to a 0.7 millimeter geoid consequence for periods longer than 3 months and to less than 0.4 millimeter for periods shorter than 3 months. The long-period geoid hydrology signal is at a floor of 4.5 mm, while the short-period hydrology is at 0.25 millimeter. The long-period ocean bottom atmospheric pressure ( OBP ) signal maps at 0.8 mm and for short-circuit periods it is 0.4 millimeter. We conclude that short-period effects are difficult to observe by GRACE and that long-period effects, like hydrology, are easier to recover than OBP variations. Keywords: Air coerce, GPS, GRACE, Hydrology, Ocean bed pressure, Temporal gravity, Tides ECCO Products Used: ECCO-KFS URL: Other URLs:
Wunsch, Carl; Heimbach, Patrick (2007). Practical global oceanic state estimation, Physica D: Nonlinear Phenomena, 1-2 (230), 197-208, 10.1016/j.physd.2006.09.040. Title: Practical global oceanic state of matter estimate Type: Journal article Publication: Physica D : nonlinear Phenomena Author(s): Wunsch, Carl ; Heimbach, Patrick Year: 2007 Formatted Citation: Wunsch, C., and P. Heimbach, 2007 : practical global oceanic state estimate. Physica D : nonlinear Phenomena, 230 ( 1-2 ), 197-208, doi:10.1016/j.physd.2006.09.040 Abstract: The problem of oceanographic express estimate, by means of an ocean general circulation model ( GCM ) and a multitude of observations, is described and contrasted with the meteorologic process of data acculturation. In commit, all such methods reduce, on the computer, to forms of least-squares. The global oceanographic problem is at the salute clock focussed chiefly on smoothing, rather than forecast, and the data types are unlike meteorologic ones. As formulated in the consortium Estimating the Circulation and Climate of the Ocean ( ECCO ), an automatic differentiation joyride is used to calculate the alleged adjoint code of the GCM, and the method acting of Lagrange multipliers used to render the trouble one of unconstrained least squares minimization. major problems today lie less with the numeral algorithm ( least-squares problems can be solved by many means ) than with the issues of data and model error. Results of ongoing calculations covering the time period of the World Ocean Circulation Experiment, and including among other data, satellite altimetry from TOPEX/POSEIDON, Jason-1, ERS-1/2, ENVISAT, and GFO, a ball-shaped array of profiling floats from the Argo program, and satellite gravity data from the GRACE mission, suggest that the solutions are now utilitarian for scientific purposes. Both methodology and applications are developing in a number of different directions. ( carbon ) 2006 Elsevier B.V. All rights reserved. Keywords: adjoint, adjoint method acting, assimilation, atlantic circulation, climate, construction, data assimilation, fitting dynamics, general-circulation model, method acting of lagrange multipliers, ocean circulation, satellite altimetry, sensitivity-analysis, department of state estimate ECCO Products Used: ECCO-V2 ; ECCO2URL: http://linkinghub.elsevier.com/retrieve/pii/S0167278906003496 Other URLs:
Verdy, A.; Dutkiewicz, Stephanie; Follows, Michael J.; Marshall, J.; Czaja, A. (2007). Carbon dioxide and oxygen fluxes in the Southern Ocean: Mechanisms of interannual variability, Global Biogeochemical Cycles, 2 (21), 1-10, 10.1029/2006GB002916. Title: Carbon dioxide and oxygen fluxes in the southern Ocean : Mechanisms of interannual unevenness Type: Journal article Publication: Global Biogeochemical Cycles Author(s): Verdy, A. ; Dutkiewicz, Stephanie ; Follows, Michael J. ; Marshall, J. ; Czaja, A. Year: 2007 Formatted Citation: Verdy, A., S. Dutkiewicz, M. J. Follows, J. Marshall, and A. Czaja, 2007 : Carbon dioxide and oxygen fluxes in the southerly Ocean : Mechanisms of interannual unevenness. Global Biogeochemical Cycles, 21 ( 2 ), 1-10, doi:10.1029/2006GB002916 Abstract: We analyze the unevenness of air-sea fluxes of carbon dioxide and oxygen in the southern Ocean during the period 1993-2003 in a biogeochemical and forcible simulation of the ball-shaped ocean. Our results suggest that the nonseasonal variability is chiefly driven by changes in entrainment of carbon-rich, oxygen-poor waters into the interracial layer during winter convection episodes. The southern Annular Mode ( SAM ), known to impact the unevenness of air-sea fluxes of carbon paper dioxide, is besides found to affect oxygen fluxes. We find that El Niño-Southern Oscillation ( ENSO ) besides plays an crucial function in generating interannual variability in air-sea fluxes of carbon and oxygen. Anomalies driven by SAM and ENSO constitute a significant fraction of the model variability ; the two climate indices are associated with surface heat fluxes, which control the modeled desegregate layer depth variability. We adopt a Lagrangian opinion of tracers advected along the Antarctic Circumpolar Current ( ACC ) to highlight the importance of convective shuffle in inducing anomalous air-sea fluxes of carbon dioxide and oxygen. The idealized Lagrangian exemplar captures the star features of the variability simulated by the more complex model, suggesting that cognition of entrainment, temperature, and mean geostrophic hang in the blend layer is sufficient to obtain a first-order description of the large-scale variability in air-sea transfer of soluble gases. Distinct spatial and temporal patterns arise from the different equilibration timescales of the two gases. Keywords: air travel & hyphen, biogeochemical model, doi:10.1029/2006GB002916, hypertext transfer protocol : //dx.doi.org/10.1029/2006GB002916, ocean interaction, unevenness ECCO Products Used: ECCO-V2 URL: Other URLs:
Khatiwala, Samar (2007). A computational framework for simulation of biogeochemical tracers in the ocean, Global Biogeochemical Cycles, 3 (21), 1-14, 10.1029/2007GB002923. Title: A computational framework for model of biogeochemical tracers in the ocean Type: Journal article Publication: Global Biogeochemical Cycles Author(s): Khatiwala, Samar Year: 2007 Formatted Citation: Khatiwala, S., 2007 : A computational framework for simulation of biogeochemical tracers in the ocean. Global Biogeochemical Cycles, 21 ( 3 ), 1-14, doi:10.1029/2007GB002923 Abstract: A novel computational model is introduced for the efficient simulation of chemical and biological tracers in ocean models. The framework is based on the “ tape drive matrix ” formulation, a outline for capturing the complex cubic transport of tracers in a general circulation model ( GCM ) as a sparse matrix, therefore reducing the job of simulating tracers to a succession of childlike matrix-vector products. The principal advantages of this conceptualization are efficiency and convenience. It is many orders of magnitude more efficient than GCMs, allowing us to address problems that are presently either unmanageable or unaffordable with GCMs. The scheme besides allows us to quickly “ prototype ” newfangled biogeochemical parameterizations or “ punch in ” existing ones. This wallpaper describes the key features and advantages of the transport matrix method acting, and illustrates its application to a series of realistic problems in chemical and biological oceanography. The examples range from simulation of a ephemeral tracer ( SF6 ) to adjoint sensitivity of a complex coupled biogeochemical model. finally, the paper describes an efficient, portable, and freely available execution of this computational schema that provides the necessary framework for simulating any biogeochemical tracer. Keywords: adjoint techniques, biogeochemical model, chemical and biological tracers, computational methods, doi:10.1029/2007GB002923, hypertext transfer protocol : //dx.doi.org/10.1029/2007GB002923, marine ecosystem model, ocean carbon cycle ECCO Products Used: ECCO-V1 URL: Other URLs:
Menemenlis, Dimitris; Fukumori, I; Lee, T (2007). Atlantic to Mediterranean sea level difference driven by winds near Gibraltar strait, Journal of Physical Oceanography, 2 (37), 359-376, 10.1175/Jpo3015.1. Title: Atlantic to Mediterranean sea degree dispute driven by winds near Gibraltar strait Type: Journal article Publication: Journal of Physical Oceanography Author(s): Menemenlis, Dimitris ; Fukumori, I ; Lee, T Year: 2007 Formatted Citation: Menemenlis, D., I. Fukumori, and T. Lee, 2007 : Atlantic to Mediterranean sea degree difference driven by winds near Gibraltar strait. Journal of Physical Oceanography, 37 ( 2 ), 359-376, doi:10.1175/Jpo3015.1 Abstract: Observations and numerical simulations show that winds near Gibraltar Strait cause an Atlantic Ocean to Mediterranean Sea ocean degree dispute of 20 cm peak to peak with a 3-cm standard deviation for periods of days to years. theoretical arguments and numeric experiments establish that this wind-driven sea level difference is caused in separate by storm surges due to alongshore winds near the north african coastline on the Atlantic slope of Gibraltar. The fraction of the Moroccan coastal current offshore of the 284-m isobath is deflected across Gibraltar Strait, west of Camarinal Sill, resulting in a geostrophic surface atmospheric pressure gradient that contributes to a sea degree remainder at the stationary limit. The sea level difference is besides caused in part by the along-strait wind setup, with a contribution proportional to the along- strait scent tension and to the duration of Gibraltar Strait and adjoining regions and inversely proportional to its depth. In the 20 – 360-day ring, average remove coefficients between the Atlantic – Alboran sea horizontal surface remainder and surface weave stress at 36 degrees N, 6.5 degrees W, estimated from barometrically corrected Ocean Topography Experiment ( TOPEX ) /Poseidon data and NCEP – NCAR reanalysis data, are 0.10 +/- 0.04 megabyte Pa ( -1 ) with 1 +/- 5-day stave and 0.19 +/- 0.08 molarity Pa ( -1 ) with 5 +/- 4-day slowdown for the zonal and meridional weave stresses, respectively. This transfer routine is reproducible with equivalent estimates derived from a 1992 – 2003 high-resolution barotropic simulation forced by the NCEP – NCAR weave stress. The barotropic simulation explains 29 % of the observed Atlantic – Alboran sea level remainder in the 20 – 360-day band. In act, the Alboran and Mediterranean mean ocean floor time series are highly correlated, rho = 0.7 in the observations and rho = 0.8 in the barotropic simulation, hence providing a pathway for winds near Gibraltar Strait to affect the bastardly sea level of the entire Mediterranean. Keywords: altimetry, atmospheric-pressure, circulation, exchange, flows, fluctuations, model, ocean, topography, variability ECCO Products Used: ECCO-KFS URL: Other URLs:
Schott, F A; Wang, W Q; Stammer, D (2007). Variability of Pacific subtropical cells in the 50-year ECCO assimilation, Geophysical Research Letters, 5 (34), 10.1029/2006gl028478. Title: Variability of Pacific subtropical cells in the 50-year ECCO assimilation Type: Journal article Publication: Geophysical Research Letters Author(s): Schott, F A ; Wang, W Q ; Stammer, D Year: 2007 Formatted Citation: Schott, F. A., W. Q. Wang, and D. Stammer, 2007 : unevenness of Pacific subtropical cells in the 50-year ECCO acculturation. Geophys. Res. Lett., 34 ( 5 ), doi:10.1029/2006gl028478 Abstract: The Pacific Subtropical Cell ( STC ) circulation is being analyzed from transport time series across 9 degrees S and 9 degrees N, obtained from the german ECCO ( GECCO ) acculturation results for the period 1952 – 2002. In this calculate, the inside Pacific STC convergence shows importantly less decadal slowdown from the 1960 ‘ sulfur to the 1990 ‘ sulfur ( alike to 5Sv ), than in previous estimates based on hydrographic sections. In the GECCO results, about one-half of this STC overlap decrease is compensated by an increase in the equatorward transport of the western boundary currents. Overall, the STC varies chiefly on interannual time scale, with relatively short clock time lags between STC convergence and ecstasy variations of the Equatorial Undercurrent at 140 degrees W. Keywords: meridional overturning circulation, ocean circulation, model, water ECCO Products Used: GECCO URL: Other URLs:
Nastula, J.; Kolaczek, B. (2007). Spectral Characteristic of Polar Motion in the 2005-2006 and 1999-2000 Winters Seasons, Artificial Satellites, 1 (42), 1-7, 10.2478/v10018-007-0013-5. Title: Spectral Characteristic of Polar Motion in the 2005-2006 and 1999-2000 Winters Seasons Type: Journal article Publication: Artificial Satellites Author(s): Nastula, J. ; Kolaczek, B. Year: 2007 Formatted Citation: Nastula, J., and B. Kolaczek, 2007 : apparitional Characteristic of Polar Motion in the 2005-2006 and 1999-2000 Winters Seasons. Artificial Satellites, 42 ( 1 ), 1-7, doi:10.2478/v10018-007-0013-5 Abstract: Keywords: 1, 10, 2006 and 1999-2000 winters, 2007, 2478, 42, department of the interior, ificial satellites, gesture in the 2005-, no, seasons, spectral characteristic of arctic, v10018-007-0013-5, vol ECCO Products Used: ECCO-KFSURL: http://www.degruyter.com/view/j/arsa.2007.42.issue-1/v10018-007-0013-5/v10018-007-0013-5.xml Other URLs:
Wunsch, Carl; Ponte, Rui M; Heimbach, Patrick (2007). Decadal Trends in Sea Level Patterns: 1993-2004, Journal of Climate, 24 (20), 5889-5911, 10.1175/2007JCLI1840.1. Title: Decadal Trends in Sea Level Patterns : 1993-2004 Type: Journal article Publication: Journal of Climate Author(s): Wunsch, Carl ; Ponte, Rui M ; Heimbach, Patrick Year: 2007 Formatted Citation: Wunsch, C., R. M. Ponte, and P. Heimbach, 2007 : Decadal Trends in Sea Level Patterns : 1993-2004. J. Clim., 20 ( 24 ), 5889-5911, doi:10.1175/2007JCLI1840.1 Abstract: Estimates of regional patterns of global ocean degree change are obtained from a 1° horizontal resoluteness general circulation model constrained by least squares to about 100 million ocean observations and many more meteorologic estimates during the period 1993-2004. The data include not lone altimetric unevenness, but most of the modern hydrography, Argo float profiles, sea open temperature, and other observations. Spatial-mean trends in altimetric data are explicitly suppressed to isolate global average long-run changes required by the in situ data alone. On big scales, some regions display potent signals although few individual points have statistically significant trends. In the regional patterns, thermal, salt, and mass redistribution contributions are all crucial, showing that regional ocean level change is tied directly to the general circulation. Contributions below about 900 m are meaning, but not dominant, and are expected to grow with time as the abyssal ocean shifts. Estimates made hera produce a global base of about 1.6 mm yr−1, or about 60 % of the pure altimetric calculate, of which about 70 % is from the summation of fresh water. Interannual global variations may be dominated by the fresh water changes preferably than by heating changes. The wide quoted altimetric ball-shaped average values may good be right, but the accuracies being inferred in the literature are not testable by existing in situ observations. useful estimate of the ball-shaped averages is extremely difficult given the realities of space-time sampling and model approximations. taxonomic errors are likely to dominate most estimates of global average change : published values and error bars should be used very cautiously. Keywords: Pattern detection, Sea flat, Trends ECCO Products Used: URL: http://journals.ametsoc.org/doi/abs/10.1175/2007JCLI1840.1 Other URLs:
Heimbach, P; Wunsch, C (2007). Estimating the Circulation and Climate of the Ocean – The ECCO Consortia, U.S. CLIVAR Variations, 3 (5), 1-5. Title: Estimating the Circulation and Climate of the Ocean – The ECCO Consortia Type: Magazine article Publication: U.S. CLIVAR Variations Author(s): Heimbach, P ; Wunsch, C Year: 2007 Formatted Citation: Heimbach, P., and C. Wunsch, 2007 : Estimating the Circulation and Climate of the Ocean – The ECCO Consortia. U.S. CLIVAR Variations, 5 ( 3 ), 1-5 pp. hypertext transfer protocol : //www.usclivar.org/sites/default/files/Variations-V3N3.pdf. Abstract: Keywords: ECCO Products Used: ECCO-V2 ; ECCO2 ; SOSEURL: https://www.usclivar.org/sites/default/files/Variations-V3N3.pdf Other URLs:
Fukumori, I; Menemenlis, Dimitris; Lee, T (2007). A near-uniform basin-wide sea level fluctuation of the Mediterranean Sea, Journal of Physical Oceanography, 2 (37), 338-358, 10.1175/Jpo3016.1. Title: A near-uniform basin-wide sea flush fluctuation of the Mediterranean Sea Type: Journal article Publication: Journal of Physical Oceanography Author(s): Fukumori, I ; Menemenlis, Dimitris ; Lee, T Year: 2007 Formatted Citation: Fukumori, I., D. Menemenlis, and T. Lee, 2007 : A near-uniform basin-wide sea level fluctuation of the Mediterranean Sea. Journal of Physical Oceanography, 37 ( 2 ), 338-358, doi:10.1175/Jpo3016.1 Abstract: A modern basin-wide oscillation of the Mediterranean Sea is identified and analyzed using sea tied observations from the Ocean Topography Experiment ( TOPEX ) /Poseidon satellite altimeter and a numerical ocean circulation model. More than 50 % of the large-scale, nontidal, and non-pressure-driven variation of sea level can be attributed to this oscillation, which is closely undifferentiated in phase and amplitude across the integral river basin. The cycle has periods ranging from 10 days to several years and has a order of magnitude adenine bombastic as 10 curium. The mannequin suggests that the fluctuations are driven by winds at the Strait of Gibraltar and its neighbor region, including the Alboran Sea and a depart of the Atlantic Ocean immediately to the west of the pass. Winds in this region power a net income mass flux through the Strait of Gibraltar to which the Mediterranean Sea adjusts about uniformly across its entire basin with depth-independent press perturbations. The wind-driven response can be explained in function by wind setup ; a near-stationary balance is established between the along-strait wind in this wedge region and the sea level difference between the Mediterranean Sea and the Atlantic Ocean. The amplitude of this basin-wide wind-driven sea flat fluctuation is inversely proportional to the apparatus region ‘s depth but is insensitive to its width including that of Gibraltar Strait. The wind-driven variation is coherent with atmospheric blackmail over the basin and contributes to the apparent deviation of the Mediterranean Sea from an inverse barometer reply. Keywords: atlantic, atmospheric-pressure, black-sea, substitution, flow-through, general-circulation, model, pacific-ocean, strait-of-gibraltar, variability ECCO Products Used: Adjoint ; ECCO-KFS URL: Other URLs:
Stammer, Detlef; Köhl, Armin; Wunsch, Carl (2007). Impact of Accurate Geoid Fields on Estimates of the Ocean Circulation, Journal of Atmospheric and Oceanic Technology, 8 (24), 1464-1478, 10.1175/JTECH2044.1. Title: Impact of Accurate Geoid Fields on Estimates of the Ocean Circulation Type: Journal article Publication: Journal of Atmospheric and Oceanic Technology Author(s): Stammer, Detlef ; Köhl, Armin ; Wunsch, Carl Year: 2007 Formatted Citation: Stammer, D., A. Köhl, and C. Wunsch, 2007 : impact of Accurate Geoid Fields on Estimates of the Ocean Circulation. Journal of Atmospheric and Oceanic Technology, 24 ( 8 ), 1464-1478, doi:10.1175/JTECH2044.1 Abstract: The impact of raw geoid stature models on estimates of the ocean circulation, now available from the Gravity Recovery and Climate Experiment ( GRACE ) spacecraft, is assessed, and the implications of far more accurate geoids, anticipated from the european Space Agency ‘s ( ESA ) Gravity and Ocean Circulation Explorer ( GOCE ) mission, are explored. The study is based on several circulation estimates obtained over the period 1992-2002 by combining most of the available ocean datasets with a ball-shaped general circulation model on a 1° horizontal grid and by exchanging only the EGM96 geoid model with two different geoid models available from GRACE. As compared to the EGM96-based solution, the GRACE geoid leads to an estimate of the ocean circulation that is more reproducible with the Levitus temperature and salt climatology. While not a formal proof, this find supports the inference of a well improved GRACE geoid skill. however, oceanographic implications of the GRACE model are merely humble compared to what can be obtained from ocean observations alone. To understand the extent to which this is merely a consequence of a not-optimally converge solution or if a much more accurate geoid playing field could in principle play a profound role in the ocean estimate procedure, an extra experiment was performed in which the geoid erroneousness was artificially reduced relative to all other datasets. Adjustments occur then in all elements of the ocean circulation, including 10 % changes in the meridional overrule circulation and the match meridional heat transport in the Atlantic. For an optimum function of new geoid fields, improved error data is required. The error budget of existing time-mean dynamic topography estimates may now be dominated by residual errors in time-mean altimetric corrections. Both these and the model errors need to be better understood ahead improved geoid estimates can be fully exploited. As is normally found, the southern Ocean is of especial concern. Keywords: General circulation model, Ocean circulation, Remote ECCO Products Used: URL: http://journals.ametsoc.org/doi/abs/10.1175/JTECH2044.1 Other URLs:
Follows, Michael J.; Dutkiewicz, Stephanie; Grant, Scott; Chisholm, Sallie W (2007). Emergent Biogeography of Microbial Communities in a Model Ocean, Science, 5820 (315), 1843-1846, 10.1126/science.1138544. Title: Emergent Biogeography of Microbial Communities in a Model Ocean Type: Journal article Publication: skill Author(s): Follows, Michael J. ; Dutkiewicz, Stephanie ; Grant, Scott ; Chisholm, Sallie W Year: 2007 Formatted Citation: Follows, M. J., S. Dutkiewicz, S. Grant, and S. W. Chisholm, 2007 : emergent Biogeography of Microbial Communities in a Model Ocean. Science, 315 ( 5820 ), 1843-1846, doi:10.1126/science.1138544 Abstract: A nautical ecosystem model seeded with many phytoplankton types, whose physiological traits were randomly assigned from ranges defined by sphere and lab data, generated an emergent community structure and biogeography coherent with ascertained global phytoplankton distributions. The model organisms included types analogous to the marine cyanobacterium Prochlorococcus. Their emergent ball-shaped distributions and physiological properties simultaneously correspond to observations. This flexible theatrical performance of community structure can be used to explore relations between ecosystems, biogeochemical cycles, and climate change. Keywords: ECCO Products Used: ECCO-V2URL: http://science.sciencemag.org/content/sci/315/5820/1843.full.pdf Other URLs: hypertext transfer protocol : //www.sciencemag.org/cgi/doi/10.1126/science.1138544
Bingham, R. J.; Hughes, C. W. (2006). Observing seasonal bottom pressure variability in the North Pacific with GRACE, Geophysical Research Letters, 8 (33), L08607, 10.1029/2005GL025489. Title: Observing seasonal bottom coerce unevenness in the North Pacific with GRACE Type: Journal article Publication: Geophysical Research Letters Author(s): Bingham, R. J. ; Hughes, C. W. Year: 2006 Formatted Citation: Bingham, R. J., and C. W. Hughes, 2006 : Observing seasonal worker bottom pressure unevenness in the North Pacific with GRACE. Geophys. Res. Lett., 33 ( 8 ), L08607, doi:10.1029/2005GL025489 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: http://doi.wiley.com/10.1029/2005GL025489 Other URLs:
Lorbacher, K.; Dommenget, D.; Niiler, P. P.; Köhl, A. (2006). Ocean mixed layer depth: A subsurface proxy of ocean-atmosphere variability, Journal of Geophysical Research, C7 (111), C07010, 10.1029/2003JC002157. Title: Ocean mixed layer depth : A subsurface proxy of ocean-atmosphere unevenness Type: Journal article Publication: Journal of Geophysical Research Author(s): Lorbacher, K. ; Dommenget, D. ; Niiler, P. P. ; Köhl, A. Year: 2006 Formatted Citation: Lorbacher, K., D. Dommenget, P. P. Niiler, and A. Köhl, 2006 : Ocean mixed layer depth : A subsurface proxy of ocean-atmosphere variability. Journal of Geophysical Research, 111 ( C7 ), C07010, doi:10.1029/2003JC002157 Abstract: Keywords: ECCO Products Used: ECCO-V1URL: http://doi.wiley.com/10.1029/2003JC002157 Other URLs:
Wunsch, Carl (2006). Towards the World Ocean Circulation Experiment and a Bit of Aftermath, Physical Oceanography: Developments Since 1950, 181-201, 10.1007/0-387-33152-2_12. Title: Towards the World Ocean Circulation Experiment and a Bit of Aftermath Type: Book department Publication: Physical oceanography : Developments Since 1950 Author(s): Wunsch, Carl Year: 2006 Formatted Citation: Wunsch, C., 2006 : Towards the World Ocean Circulation Experiment and a Bit of Aftermath. forcible oceanography : Developments Since 1950, M. Jochum, and R. Murtugudde, Eds., Springer New York, 181-201, doi:10.1007/0-387-33152-2_12 Abstract: Keywords: ECCO Products Used: URL: http://dx.doi.org/10.1007/0-387-33152-2_12 Other URLs:
Wunsch, C (2006). Altimetry: Past, Present, and Future, 15 Years of Progress in Radar Altimetry Symposium. Title: Altimetry : Past, Present, and Future Type: Conference Proceedings Publication: 15 Years of Progress in Radar Altimetry Symposium Author(s): Wunsch, C Year: 2006 Formatted Citation: Wunsch, C., 2006 : Altimetry : Past, Present, and Future. 15 Years of Progress in Radar Altimetry Symposium ESA Special Publication SP-614, Venice, 13-18 March 2006 Abstract: Keywords: ECCO Products Used: URL: Other URLs:
Hill III, Edward H; Enderton, Daniel; Hill, Christopher N (2006). SPGrid : A Grid Generation Program for Domain-Decomposed Oceanographic and Atmospheric Models. Title: SPGrid : A grid Generation Program for Domain-Decomposed Oceanographic and Atmospheric Models Type: Report Publication: Author(s): Hill III, Edward H ; Enderton, Daniel ; Hill, Christopher N Year: 2006 Formatted Citation: Hill III, E. H., D. Enderton, and C. N. Hill, 2006 : SPGrid : A grid Generation Program for Domain-Decomposed Oceanographic and Atmospheric Models., 1-21 pp. Abstract: A general, flexible framework for the creation of structured, conforming grids is presented. The grids are composed from one or more logically orthogonal regions on the surface of a celestial sphere. Within each area grid lines are isocontours of Laplace equation solutions. A color- ing scheme tracks isocontours across logically rectangular regions. This outline ensures that, subject to certain isotropy constraints, closed paths spanning multiple regions are C0 con- tinuous. When combined with sphere decay techniques, this approach can be used to efficiently grid many utilitarian domains including the integral surface of a satellite or sub-regions such as ocean basins. The border on offers many virtual benefits for existing geophysical fluid stream and tape drive models. model grids and applications using the Massachusetts Institute of Technology General Circulation Model are presented. Keywords: ECCO Products Used: URL: ecco2.org/manuscripts/2006/gridding_notes.pdf Other URLs: hypertext transfer protocol : //mitgcm.org/~edhill/grids/docs/gridding_notes.pdf
Hoteit, Ibrahim; Köhl, Armin (2006). Efficiency of reduced-order, time-dependent adjoint data assimilation approaches, Journal of Oceanography, 4 (62), 539-550, 10.1007/s10872-006-0074-2. Title: Efficiency of reduced-order, time-dependent adjoint data assimilation approaches Type: Journal article Publication: Journal of Oceanography Author(s): Hoteit, Ibrahim ; Köhl, Armin Year: 2006 Formatted Citation: Hoteit, I., and A. Köhl, 2006 : efficiency of reduced-order, time-dependent adjoint data assimilation approaches. Journal of Oceanography, 62 ( 4 ), 539-550, doi:10.1007/s10872-006-0074-2 Abstract: Applications of adjoint data assimilation, which is designed to bring an ocean circulation mannequin into consistency with ocean observations, are computationally demanding. To improve the convergence rate of an optimization, reduced-order optimization methods that reduce the size of the master vector by projecting it onto a limited number of footing functions were suggested. In this newspaper, we show that such order decrease can indeed speed up the initial convergence rate of an assimilation attempt in the easterly subtropical North Atlantic using in situ and satellite data as constraints. however, an improved operation of the optimization was only obtained with a hybrid approach where the optimization is started in a reduce subspace but is continued subsequently using the full command space. In such an experiment about 50 % of the computational cost can be saved as compared to the optimization in the wax manipulate distance. Although respective order-reduction approaches seem feasible, the best result was obtained by projecting the control vector onto Empirical Orthogonal Functions ( EOFs ) computed from a dress of adjusted control vectors estimated previously from an optimization using the lapp model shape. Keywords: 4DVAR, Adjoint method acting, Data assimilation, EOFs, Order reduction ECCO Products Used: ECCO-V1 URL: Other URLs:
Bugnion, Véronique; Hill, Chris; Stone, Peter H (2006). An Adjoint Analysis of the Meridional Overturning Circulation in an Ocean Model, Journal of Climate, 15 (19), 3732-3750, 10.1175/JCLI3787.1. Title: An Adjoint analysis of the Meridional Overturning Circulation in an Ocean Model Type: Journal article Publication: Journal of Climate Author(s): Bugnion, Véronique ; Hill, Chris ; Stone, Peter H Year: 2006 Formatted Citation: Bugnion, V., C. Hill, and P. H. Stone, 2006 : An Adjoint psychoanalysis of the Meridional Overturning Circulation in an Ocean Model. J. Clim., 19 ( 15 ), 3732-3750, doi:10.1175/JCLI3787.1 Abstract: Using the adjoint of a in full three-dimensional primitive equation ocean model in an idealize geometry, spatial variations in the sensitivity to surface boundary pull of the meridional overturn circulation ‘s strength are studied. Steady-state sensitivities to diapycnal blend, wind stress, fresh water, and heat push are examined. Three different, normally used, boundary-forcing scenarios are studied, both with and without wind force. Almost identical circulation is achieved in each scenario, but the sensitivity patterns show major ( quantitative and qualitative ) differences. Sensitivities to surface pull and diapycnal mix are well larger under shuffle boundary conditions, in which fluxes of fresh water and heat are supplemented by a temperature easiness term or under flux limit conditions, in which climatological fluxes alone drive the circulation, than under restoring limit conditions. The sensitivity radiation pattern to diapycnal shuffle, which peaks in the Tropics is exchangeable both with and without hoist coerce. scent does, however, increase the sensitivity to diapycnal mix in the regions of Ekman upwelling and decreases it in the regions of Ekman downwelling. Wind stress in the southern Oceans plays a crucial role in restoring limit conditions, but the effect is largely lacking under shuffle or flux limit conditions. The results highlight how critical a careful conceptualization of the come on impel terms is to ensuring a proper answer to changes in forcing in ocean models. Keywords: ECCO Products Used: adjointURL: http://journals.ametsoc.org/doi/abs/10.1175/JCLI3787.1 Other URLs:
Matsumoto, K; Sato, T; Fujimoto, H; Tamura, Y; Nishino, M; Hino, R; Higashi, T; Kanazawa, T (2006). Ocean bottom pressure observation off Sanriku and comparison with ocean tide models, altimetry, and barotropic signals from ocean models, Geophysical Research Letters, 16 (33), 10.1029/2006gl026706. Title: Ocean bottom coerce observation off Sanriku and comparison with ocean tide models, altimetry, and barotropic signals from ocean models Type: Journal article Publication: Geophysical Research Letters Author(s): Matsumoto, K ; Sato, T ; Fujimoto, H ; Tamura, Y ; Nishino, M ; Hino, R ; Higashi, T ; Kanazawa, T Year: 2006 Formatted Citation: Matsumoto, K., T. Sato, H. Fujimoto, Y. Tamura, M. Nishino, R. Hino, T. Higashi, and T. Kanazawa, 2006 : Ocean bottom press notice off Sanriku and comparison with ocean tide models, altimetry, and barotropic signals from ocean models. Geophys. Res. Lett., 33 ( 16 ), doi:10.1029/2006gl026706 Abstract: We discuss tidal and non-tidal signals which are obtained from ocean buttocks pressure ( OBP ) measurements at two sites off Sanriku, Japan. Comparison between the detect tidal component and five ocean tide models shows that late models have accuracy better than 1.3 centimeter in terms of root sum square of vector differences for eight star constituents. The empirical estimates of non-tidal signal from TOPEX/POSEIDON ( T/P ) and JASON-1 aberrant from barotropic signals observed by OBP recorders, which can be attributed to baroclinic part in the altimeter data. We besides compared the non-tidal barotropic signal derived from the observation with those from ECCO model ( wind-driven ) and Kyushu University mannequin ( pressure-driven ). The comparison indicates that the pressure-driven mannequin increases explained variability and it is suggested to combine the wind-driven model and the pressure-driven model in order to describe non-tidal ocean batch variability in especial at period shorter than 30 days. Keywords: ECCO Products Used: ECCO-KFS URL: Other URLs:
Dutkiewicz, Stephanie; Follows, Michael J.; Heimbach, P; Marshall, J (2006). Controls on ocean productivity and air-sea carbon flux: An adjoint model sensitivity study, Geophysical Research Letters, 2 (33), 10.1029/gl024987. Title: Controls on ocean productivity and air-sea carbon flux : An adjoint model sensitivity study Type: Journal article Publication: Geophysical Research Letters Author(s): Dutkiewicz, Stephanie ; Follows, Michael J. ; Heimbach, P ; Marshall, J Year: 2006 Formatted Citation: Dutkiewicz, S., M. J. Follows, P. Heimbach, and J. Marshall, 2006 : Controls on ocean productivity and air-sea carbon paper flux : An adjoint model sensitivity analyze. Geophys. Res. Lett., 33 ( 2 ), doi:10.1029/gl024987 Abstract: [ 1 ] We use the adjoint of a ball-shaped model of coupled oceanic cycles of carbon paper, morning star and cast-iron to comprehensively and efficiently map the sensitivity of global biological productivity and air-sea carbon fluxes to local perturbations of the atmospheric iron source sustained for a decade or more. Modeled productiveness and carbon flux are found to be most sensible to enhanced cast-iron sources in high nitrate low chlorophyll regions. The proportional reaction of productivity to an enhanced iron generator is greatest in the Equatorial Pacific. Although surface macro-nutrients are more abundant in the Southern Ocean, nutrient utilization here is critically regulated by light limitation. Our results differ from those of former studies which imposed depletion of surface nutrients and ignore the handiness of inner light. however, the enhancement of oceanic carbon storage per unit of measurement increase in productivity is strongest in the high gear latitude oceans. Keywords: atmospheric carbon dioxide, data assimilation, export, fertilization, impact, cast-iron, northeast, pacific, morning star, phytoplankton growth, southern-ocean ECCO Products Used: URL: Other URLs:
Takiguchi, Hiroshi; Fukuda, Yoichi; Otsubo, Toshimichi (2006). Mass-redistribution-induced crustal deformation of global satellite laser ranging stations due to non-tidal ocean and land water circulation, Earth, Planets and Space, 2 (58), E13-E16, 10.1186/BF03353365. Title: Mass-redistribution-induced crustal deformation of global satellite laser ranging stations due to non-tidal ocean and land urine circulation Type: Journal article Publication: Earth, Planets and Space Author(s): Takiguchi, Hiroshi ; Fukuda, Yoichi ; Otsubo, Toshimichi Year: 2006 Formatted Citation: Takiguchi, H., Y. Fukuda, and T. Otsubo, 2006 : Mass-redistribution-induced crustal deformation of global satellite laser ranging stations due to non-tidal ocean and nation water circulation. earth, Planets and Space, 58 ( 2 ), E13-E16, doi:10.1186/BF03353365 Abstract: The effect of the non-tidal ocean cargo ( NTOL ) and the continental water load ( CWL ) on crustal contortion are calculated for ball-shaped satellite laser crop ( SLR ) stations and on 4 degrees x 4 degrees grids ( entirely over the country ). For the regions most badly moved, the peak-to-peak displacements ascribable to the NTOL are found to be ampere large as 3 millimeter for the horizontal components and 10 millimeter for the vertical part. The peak-to-peak displacements due to the CWL reach 3 millimeter for the horizontal components and 15 millimeter for the vertical component. We apply the clock series of NTOL and CWL to precise SLR analysis. The LAGEOS eye socket analysis reveals that the Estimating the Circulation and Climate of the Ocean ( ECCO ) model makes the root beggarly feather ( RMS ) of the scope remainder 0.2 % smaller, and that the CWL makes it 0.8 % smaller, compared with the case where loading supplanting is neglected. On the other hired hand, with the NTOL derived from Topex/Poseidon altimetry data, the SLR orb match is not improved. Keywords: ECCO, Satellite laser range, Topex/Poseidon, continental water load, crustal distortion, non-tidal ocean load ECCO Products Used: ECCO-KFS URL: Other URLs:
Spiridonov, E. A.; Tsurkis, I. Ya. (2006). Modeling of the Earth’s pole motion from data on the atmospheric and oceanic angular momenta over 1980-2002, Izvestiya, Physics of the Solid Earth, 2 (42), 149-155, 10.1134/S1069351306020066. Title: Modeling of the Earth ’ s pole motion from data on the atmospheric and oceanic angular momentum over 1980-2002 Type: Journal article Publication: Izvestiya, Physics of the Solid earth Author(s): Spiridonov, E. A. ; Tsurkis, I. Ya. Year: 2006 Formatted Citation: Spiridonov, E. A., and I. Y. Tsurkis, 2006 : modeling of the Earth ‘s pole gesture from data on the atmospheric and oceanic angular momentum over 1980-2002. Izvestiya, Physics of the Solid Earth, 42 ( 2 ), 149-155, doi:10.1134/S1069351306020066 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: http://link.springer.com/10.1134/S1069351306020066 Other URLs:
Mikaloff Fletcher, S E; Gruber, N; Jacobson, A R; Doney, S C; Dutkiewicz, Stephanie; Gerber, M; Follows, Michael J.; Joos, F; Lindsay, K; Menemenlis, Dimitris; Mouchet, A; Müller, S A; Sarmiento, J L (2006). Inverse estimates of anthropogenic CO2 uptake, transport, and storage by the ocean, Global Biogeochemical Cycles, 2 (20), 10.1029/2005GB002530. Title: Inverse estimates of anthropogenetic CO2 consumption, transport, and storage by the ocean Type: Journal article Publication: Global Biogeochemical Cycles Author(s): Mikaloff Fletcher, S E ; Gruber, N ; Jacobson, A R ; Doney, S C ; Dutkiewicz, Stephanie ; Gerber, M ; Follows, Michael J. ; Joos, F ; Lindsay, K ; Menemenlis, Dimitris ; Mouchet, A ; Müller, S A ; Sarmiento, J L Year: 2006 Formatted Citation: Mikaloff Fletcher, S. E. and Coauthors, 2006 : inverse estimates of anthropogenetic CO2 consumption, ecstasy, and repositing by the ocean. Global Biogeochemical Cycles, 20 ( 2 ), doi:10.1029/2005GB002530 Abstract: Regional air-sea fluxes of anthropogenetic CO2 are estimated using a Green ‘s officiate inversion method acting that combines experimental estimates of anthropogenetic CO2 in the ocean with information about ocean transport and mixing from a cortege of Ocean General Circulation Models ( OGCMs ). In order to quantify the uncertainty associated with the estimated fluxes owing to modeled transport and errors in the data, we employ 10 OGCMs and three scenarios representing biases in the experimental anthropogenetic CO2 estimates. On the basis of the order anthropogenetic CO2 storage, we find a global consumption of 2.2 ± 0.25 Pg C yr−1, scaled to 1995. This erroneousness estimate represents the standard deviation of the models weighted by a CFC-based exemplary skill seduce, which reduces the error range and emphasizes those models that have been shown to reproduce observe tracer concentrations most accurately. The greatest anthropogenetic CO2 consumption occurs in the southerly Ocean and in the tropics. The flux estimates entail vigorous north transport in the Southern Hemisphere, north cross-equatorial transmit, and equatorward transportation at high northerly latitudes. Compared with forth simulations, we find well more consumption in the Southern Ocean, less uptake in the Pacific Ocean, and less ball-shaped consumption. The large-scale spatial radiation pattern of the estimated flow is broadly insensitive to possible biases in the data and the models employed. however, the global uptake scales approximately linearly with changes in the global anthropogenetic CO2 stock. considerable uncertainties remain in some regions, particularly the southerly Ocean. Keywords: 0428 Carbon cycle, 4504 Air/sea interactions, 4508 Coriolis effects, 4808 Chemical tracers, anthropogenetic CO2, carbon paper cycle, inverse model ECCO Products Used: ECCO-V2URL: http://dx.doi.org/10.1029/2005GB002530 Other URLs:
Manoj, C; Kuvshinov, A; Maus, S; Luhr, H (2006). Ocean circulation generated signals, Earth Planets Space, 4 (58), 429-437. Title: Ocean circulation generated signals Type: Journal article Publication: Earth Planets Space Author(s): Manoj, C ; Kuvshinov, A ; Maus, S ; Luhr, H Year: 2006 Formatted Citation: Manoj, C., A. Kuvshinov, S. Maus, and H. Luhr, 2006 : Ocean circulation generated signals. Earth Planets Space, 58 ( 4 ), 429-437, hypertext transfer protocol : //medcontent.metapress.com/index/A65RM03P4874243N.pdf Abstract: Conducting ocean water system, as it flows through the Earth ‘s magnetic discipline, generates secondary electric and magnetic fields. An appraisal of the ocean-generated magnetic fields and their detectability may be of importance for geomagnetism and oceanography. Motivated by the unclutter identification of ocean tidal signatures in the CHAMP magnetic playing field data we estimate the ocean magnetic signals of sweetheart menstruate using a global three-d EM numerical solution. The ask speed data are from the ECCO ocean circulation experiment and alternatively from the OCCAM exemplary for higher resolution. We assume an ground ‘s conduction model with a surface thin shell of variable conductance with a realistic ID mantle underneath. Simulations using both models predict an amplitude range of +/-2 national trust at Swarm altitude ( 430 kilometer ). however at ocean degree, the higher resolving power simulation predicts a higher intensity of the magnetic field, as compared to the ECCO simulation. Besides the expect signatures of the global circulation patterns, we find significant seasonal unevenness of ocean magnetic signals in the indian and western Pacific Oceans. Compared to seasonal worker variation, interannual variations produce weaker signals. Keywords: geomagnetic field, ocean flow, satellite measurements ECCO Products Used: ECCO-V1URL: http://medcontent.metapress.com/index/A65RM03P4874243N.pdf Other URLs:
Ferreira, D; Marshall, J (2006). Formulation and implementation of a “residual-mean” ocean circulation model, Ocean Modelling, 1 (13), 86-107, 10.1016/j.ocemod.2005.12.001. Title: Formulation and implementation of a “ residual-mean ” ocean circulation model Type: Journal article Publication: Ocean Modelling Author(s): Ferreira, D ; Marshall, J Year: 2006 Formatted Citation: Ferreira, D., and J. Marshall, 2006 : formulation and implementation of a “ residual-mean ” ocean circulation exemplar. Ocean Modelling, 13 ( 1 ), 86-107, doi:10.1016/j.ocemod.2005.12.001 Abstract: A parameterization of mesoscale eddies in coarse-resolution ocean general circulation models ( GCM ) is formulated and implemented using a residual-mean formalism. In that framework, mean buoyancy is advected by the residual speed ( the kernel of the Eulerian and eddy-induced velocities ) and modified by a residual blend which accounts for the diabatic effects of mesoscale eddies. The remainder speed is obtained by stepping forth a residual-mean momentum equality in which eddy stresses appear as impel terms. survey of the spatial distribution of eddy stresses, derived by using them as control parameters to “ fit ” the residual-mean model to observations, supports the mind that eddy stresses can be likened to a upright down-gradient flux of momentum with a coefficient which is changeless in the vertical. The residual eddy liquefy is set to zero in the ocean home, where mesoscale eddies are assumed to be quasi-adiabatic, but is parameterized by a horizontal down-gradient diffusivity near the surface where eddies develop a diabatic component as they stir properties horizontally across steep isopycnals. The residual-mean model is implemented and tested in the MIT general circulation model. It is shown that the resulting model ( 1 ) has a climatology that is superior to that obtained using the Gent and McWilliams parameterization outline with a spatially undifferentiated diffusivity and ( 2 ) allows one to importantly reduce the ( specious ) horizontal viscosity used in coarse-resolution GCMs. Keywords: Coarse-resolution ocean mannequin, Eddy parameterization, Residual-mean circulation ECCO Products Used: URL: http://www.sciencedirect.com/science/article/pii/S1463500305001022 Other URLs:
Fukumori, Ichiro (2006). What is data assimilation really solving, and how is the calculation actually done?, Ocean Weather Forecasting: An Integrated View of Oceanography, 317-342, 10.1007/1-4020-4028-8_11. Title: What is data assimilation truly solving, and how is the calculation actually done ? Type: Book section Publication: Ocean Weather Forecasting : An Integrated View of Oceanography Author(s): Fukumori, Ichiro Year: 2006 Formatted Citation: Fukumori, I., 2006 : What is datum assimilation very solving, and how is the calculation actually done ?. Ocean Weather Forecasting : An Integrated View of Oceanography, E. Chassignet, and J. Verron, Eds., Springer Netherlands, 317-342, doi:10.1007/1-4020-4028-8_11 Abstract: Data assimilation is reviewed in the context of an inverse trouble. The mathematical nature of the trouble is examined and some of its coarse solutions are described, clarifying some of the implicit assumptions that underlie both trouble and solution. For case, Kalman filtering and Rauch-Tung-Striebel smooth can be identified as recursive least-squares inversions of the assimilation problem but of different parts of the trouble. The temporal development of a filter solution is not physically consistent, but that of a smooth solution is. Understanding these characteristics is all-important in effectively assimilating observations angstrom good as in utilize and further improving the assimilate solution. hardheaded steps in implementing a filter and polish algorithm are illustrated by examples from the consortium for Estimating the Circulation and Climate of the Ocean ( ECCO ). © 2006 Springer. Keywords: Data assimilation, ECCO, Kalman trickle, consistency, legato ECCO Products Used: ECCO-KFSURL: http://dx.doi.org/10.1007/1-4020-4028-8_11 Other URLs:
Kim, S B; Fukumori, I; Lee, T (2006). The closure of the ocean mixed layer temperature budget using level-coordinate model fields, Journal of Atmospheric and Oceanic Technology, 6 (23), 840-853, 10.1175/Jtech1883.1. Title: The closure of the ocean mix level temperature budget using level-coordinate mannequin fields Type: Journal article Publication: Journal of Atmospheric and Oceanic Technology Author(s): Kim, S B ; Fukumori, I ; Lee, T Year: 2006 Formatted Citation: Kim, S. B., I. Fukumori, and T. Lee, 2006 : The blockage of the ocean blend layer temperature budget using level-coordinate model fields. Journal of Atmospheric and Oceanic Technology, 23 ( 6 ), 840-853, doi:10.1175/Jtech1883.1 Abstract: Entrainment is an significant component of the shuffle layer batch, heat, and temperature budgets. conventional procedures to estimate entrainment heat advection frequently do not permit the blockage of heat and temperature budgets because of inaccuracies in its formulation. In this cogitation a rigorous approach to evaluate the effect of entrainment using the output of a general circulation model ( GCM ) that does not have an explicit omen shuffle layer model is described. The integral elements of the evaluation are 1 ) the rigorous estimates of the temperature dispute between interracial level water system and entrain water at each horizontal grid indicate, 2 ) the formulation of the temperature difference such that the budget closes over a volume greater than one horizontal grid point, and 3 ) the apparent calefacient of the mix layer during the blend layer shoaling to account for the weak upright temperature gradient within the mix level. This evaluation of entrainment hotness advection is compared with the estimates by other normally used ad hoc formulations by applying them in three regions : the north-central Pacific, the Kuroshio Extension, and the Nino-3 areas in the tropical Pacific. In all three areas the imbalance in the mix layer temperature budget by the ad hoc estimates is significant, reaching a maximum of about 4 K yr ( -1 ). Keywords: cycle, el-nino, equatorial pacific, heat-balance, kuroshio extension region, sea-surface temperature, sst, tropical pacific, unevenness ECCO Products Used: ECCO-KFS URL: Other URLs:
Benjamin, David; Wahr, John; Ray, Richard D.; Egbert, Gary D.; Desai, Shailen D. (2006). Constraints on mantle anelasticity from geodetic observations, and implications for the J 2 anomaly, Geophysical Journal International, 1 (165), 3-16, 10.1111/j.1365-246X.2006.02915.x. Title: Constraints on cape anelasticity from geodetic observations, and implications for the J 2 anomaly Type: Journal article Publication: Geophysical Journal International Author(s): Benjamin, David ; Wahr, John ; Ray, Richard D. ; Egbert, Gary D. ; Desai, Shailen D. Year: 2006 Formatted Citation: Benjamin, D., J. Wahr, R. D. Ray, G. D. Egbert, and S. D. Desai, 2006 : Constraints on mantle anelasticity from geodetic observations, and implications for the J 2 anomaly. Geophysical Journal International, 165 ( 1 ), 3-16, doi:10.1111/j.1365-246X.2006.02915.x Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: https://academic.oup.com/gji/article-lookup/doi/10.1111/j.1365-246X.2006.02915.x Other URLs:
Ellsworth, David; Green, Bryan; Henze, Chris; Moran, Patrick; Sandstrom, Timothy (2006). Concurrent Visualization in a Production Supercomputing Environment, IEEE Transactions on Visualization and Computer Graphics, 5 (12), 997-1004, 10.1109/tvcg.2006.128. Title: Concurrent Visualization in a Production Supercomputing Environment Type: Journal article Publication: IEEE Transactions on Visualization and Computer Graphics Author(s): Ellsworth, David ; Green, Bryan ; Henze, Chris ; Moran, Patrick ; Sandstrom, Timothy Year: 2006 Formatted Citation: Ellsworth, D., B. Green, C. Henze, P. Moran, and T. Sandstrom, 2006 : coincident Visualization in a Production Supercomputing Environment. IEEE Transactions on Visualization and Computer Graphics, 12 ( 5 ), 997-1004, doi:10.1109/tvcg.2006.128 Abstract: Keywords: ECCO Products Used: URL: Other URLs:
Zhong, M; Yan, H M; Wu, X P; Duan, J B; Zhu, Y Z (2006). Non-tidal oceanic contribution to polar wobble estimated from two oceanic assimilation data sets, Journal of Geodynamics, 1-3 (41), 147-154, 10.1016/j.jog.2005.10.011. Title: Non-tidal oceanic contribution to polar careen estimated from two oceanic assimilation data sets Type: Journal article Publication: Journal of Geodynamics Author(s): Zhong, M ; Yan, H M ; Wu, X P ; Duan, J B ; Zhu, Y Z Year: 2006 Formatted Citation: Zhong, M., H. M. Yan, X. P. Wu, J. B. Duan, and Y. Z. Zhu, 2006 : Non-tidal oceanic contribution to polar wobble estimated from two oceanic assimilation data sets. Journal of Geodynamics, 41 ( 1-3 ), 147-154, doi:10.1016/j.jog.2005.10.011 Abstract: Contributions of ocean bottom blackmail and oceanic current to polar careen are evaluated by using two oceanic data acculturation products. One product comes from Scripps Institution of Oceanography ( ECCO ), and the other is the simple Ocean Data Assimilation ( SODA ) developed at University of Maryland. The results show that seasonal fluctuations in these two assimilated ocean angular momentum ( OAM ) meter series agree better with each other along the Greenwich prime than along the 90 degrees E meridian. furthermore, annual OAM deepen for ECCO is much closer to non-atmospheric residual, than that for SODA. however, annual OAM change for SODA along the Greenwich acme compares better than that for ECCO to non-atmospheric-hydrologic residual, in which annual and semi-annual signals of kingdom hydrologic angular momentum ( LHAM ) of a climate model are considered. At the meanwhile, annual LHAM signals along the 90 degrees E meridian derived from the climate model and from the GRACE data are besides compatible with each early. It is probably that ECCO overestimates the annual change along the 90 degrees E meridian according to the angular momentum conservation police in the Earth system. consequently, the oceanic role in arctic shimmy should be farther examined. ( coke ) 2005 Elsevier Ltd. All rights reserved. Keywords: Earth rotation, atmospheric angular-momentum, climate model, earth annual shimmy, excitement, apparent motion, oceanic angular momentum ( OAM ), polar wobble, rotation, signals, variability ECCO Products Used: ECCO-V1 URL: Other URLs:
Mazloff, Matthew R. (2006). Production and analysis of a Southern Ocean state estimate, Thesis, 106, 10.1575/1912/1282. Title: Production and analysis of a southern Ocean express estimate Type: dissertation Publication: dissertation Author(s): Mazloff, Matthew R. Year: 2006 Formatted Citation: Mazloff, M. R., 2006 : production and analysis of a southerly Ocean state estimate. Thesis Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, Woods Hole, MA, 106 pp. doi:10.1575/1912/1282. Abstract: Keywords: ECCO Products Used: URL: https://hdl.handle.net/1912/1282 Other URLs:
Thompson, B; Gnanaseelan, C; Salvekar, P S (2006). Variability in the Indian Ocean circulation and salinity and its impact on SST anomalies during dipole events, Journal of Marine Research, 6 (64), 853-880, 10.1357/002224006779698350. Title: Variability in the indian Ocean circulation and salt and its impact on SST anomalies during dipole events Type: Journal article Publication: Journal of Marine Research Author(s): Thompson, B ; Gnanaseelan, C ; Salvekar, P S Year: 2006 Formatted Citation: Thompson, B., C. Gnanaseelan, and P. S. Salvekar, 2006 : variability in the indian Ocean circulation and salt and its shock on SST anomalies during dipole events. Journal of Marine Research, 64 ( 6 ), 853-880, doi:10.1357/002224006779698350 Abstract: The GFDL Modular Ocean Model ( MOM4 ) has been used to understand the variability of the indian Ocean circulation and salt during indian Ocean Dipole events. The exemplar sinuilations are compared with HadISST, SODA and ECCO data sets. During the positive dipole years, the climatological cyclonic circulation in the Bay of Bengal weakens or is replaced by an anticyclonic circulation. The interannual unevenness in the Wyrtki Jet and Bay of Bengal circulation has significant influence on newly water transport between the equatorial indian Ocean and Bay of Bengal. The salt anomalies in the equatorial amerind Ocean are meaning during the positive dipole years. The brininess anomalies are plus in the southeast equatorial amerind Ocean and negative in the central equatorial indian Ocean. The advection of broken brininess water from the eastern equatorial indian Ocean and Bay of Bengal is attributed to the salt anomalies in the central equatorial indian Ocean. The salt variability in the equatorial indian Ocean influences the Surface and subsurface temperatures by forming or eroding the barrier layer. Keywords: barrier level, alcove, bengal, currents, dynamics, interannual variability, mood events ECCO Products Used: ECCO-V1 URL: Other URLs:
Ponte, Rui M (2006). Oceanic Response to Surface Loading Effects Neglected in Volume-Conserving Models, Journal of Physical Oceanography, 3 (36), 426-434, 10.1175/JPO2843.1. Title: Oceanic Response to Surface Loading Effects Neglected in Volume-Conserving Models Type: Journal article Publication: Journal of Physical Oceanography Author(s): Ponte, Rui M Year: 2006 Formatted Citation: Ponte, R. M., 2006 : oceanic Response to Surface Loading Effects Neglected in Volume-Conserving Models. Journal of Physical Oceanography, 36 ( 3 ), 426-434, doi:10.1175/JPO2843.1 Abstract: Forcing by fresh water fluxes implies variable star surface loads that are not treated in volume-conserving ocean models. A exchangeable trouble exists with the representation of volume changes implied by coat heat fluxes. Under the assumption of an balance reception, such surface loads merely lead to spatially uniform sea level fluctuations, which carry no dynamic significance. A barotropic model forced by realistic fresh water fluxes is used to test the cogency of the balance assumption on seasonal worker to daily meter scales. The model nonequilibrium signals have amplitudes much weaker than those of the force, with standard deviations well below 1 millimeter over most of the deep ocean. Larger values ( up to ∼1 centimeter ) can be found in shallow and semienclosed coastal areas, where the equilibrium premise can lead to substantial errors tied at monthly and longer time scales. Forcing by bastardly seasonal worker river runoff yields similar results, and heat flux effects lead to weaker nonequilibrium signals. In contrast, nonequilibrium signals driven by atmospheric press loading are at least an order of order of magnitude larger than those forced by fresh water fluxes. The exceptions occur for some shoal, coastal regions in the Tropics and at the longest clock time scales, in general, where forcing by fresh water flux is much stronger than by pressure. Keywords: ECCO Products Used: URL: http://journals.ametsoc.org/doi/abs/10.1175/JPO2843.1 Other URLs:
Stammer, Detlef; Wunsch, Carl; Ueyoshi, Kyozo (2006). Temporal Changes in Ocean Eddy Transports, Journal of Physical Oceanography, 3 (36), 543-550, 10.1175/JPO2858.1. Title: Temporal Changes in Ocean Eddy Transports Type: Journal article Publication: Journal of Physical Oceanography Author(s): Stammer, Detlef ; Wunsch, Carl ; Ueyoshi, Kyozo Year: 2006 Formatted Citation: Stammer, D., C. Wunsch, and K. Ueyoshi, 2006 : temporal Changes in Ocean Eddy Transports. Journal of Physical Oceanography, 36 ( 3 ), 543-550, doi:10.1175/JPO2858.1 Abstract: New estimates from 11 year of altimetric data are made of the global time-average variability energizing energy and its decadal-scale unevenness. Making the approximation that the variability reflects chiefly eddy motions, a time-mean, but spatially vary, eddy mixing coefficient is then estimated along with its changes over the survive decade. With a criminal record distance more than 2 times that previously available, the time-mean variability kinetic energy K, is statistically more reliable and smooth in its spatial pattern. Minimum values of K-E are present in the subpolar North Pacific Ocean and in the eastern South Pacific ( both less than 100 centimeter ( 2 ) s ( -2 ) ). in contrast to the North Pacific, the subpolar North Atlantic Ocean shows relatively enhanced K ,. Eddy kinetic energy and eddy mix appear to have declined during the last ten over bombastic parts of the western Pacific Ocean, in some regions by angstrom much as 50 % of the time-mean prize. Increased eddy unevenness can be found in the Kuroshio and Gulf Stream regions, equally well as in the Agulhas region, east of Australia, and at several locations along the Antarctic Circumpolar Current. Somewhat enhanced eddy variability and eddy desegregate are besides apparent in the eastern tropical Pacific. A numeric simulation of the ocean circulation at 1 degrees spatial resolving power over a 10-yr period suggests that variations in eddy mix of this ordain of magnitude measurably affect the deep temperature field in the vicinity of permanent frontal structures on a time plate of less than 4 year. The meridional overthrow circulation besides reacts on these clock scales. If haunting over longer periods in the ocean, these effects would be crucial for climate simulations. Keywords: circulation models, energy, north-atlantic, satellite altimetry ECCO Products Used: URL: http://journals.ametsoc.org/doi/abs/10.1175/JPO2858.1 Other URLs:
Fu, Lee-Lueng (2006). Pathways of eddies in the South Atlantic Ocean revealed from satellite altimeter observations, Geophysical Research Letters, 14 (33), 10.1029/2006GL026245. Title: Pathways of eddies in the South Atlantic Ocean revealed from satellite altimeter observations Type: Journal article Publication: Geophysical Research Letters Author(s): Fu, Lee-Lueng Year: 2006 Formatted Citation: Fu, L., 2006 : Pathways of eddies in the South Atlantic Ocean revealed from satellite altimeter observations. Geophys. Res. Lett., 33 ( 14 ), doi:10.1029/2006GL026245 Abstract: The majority of the energizing energy of ocean currents is contained in the mesoscale eddies. The pathways of ocean eddies, which are the “ weather ” of ocean circulation, are mapped from space using a decade-long criminal record of ocean surface height measured by two simultaneously flying satellite radar altimeters. The accelerate and focus of the propagation of eddies in the South Atlantic Ocean are presented in the newspaper. The patterns of the eddy propagation speed reveal the effects of the interaction between mean flow and eddies with impregnable determine of bottom topography. The information describes a singular property of the ocean general circulation and serves as a basis for testing ocean models. Keywords: 4512 Currents, 4520 Eddies and mesoscale processes, 4528 Fronts and jets, 4556 Sea charge : variations and mean ECCO Products Used: URL: http://dx.doi.org/10.1029/2006GL026245 Other URLs:
Gebbie, Geoffrey; Heimbach, Patrick; Wunsch, Carl (2006). Strategies for nested and eddy-permitting state estimation, Journal of Geophysical Research: Oceans, C10 (111), 10.1029/2005JC003094. Title: Strategies for nest and eddy-permitting state of matter estimate Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Gebbie, Geoffrey ; Heimbach, Patrick ; Wunsch, Carl Year: 2006 Formatted Citation: Gebbie, G., P. Heimbach, and C. Wunsch, 2006 : Strategies for nest and eddy-permitting state estimate. J. Geophys. Res. Ocean., 111 ( C10 ), doi:10.1029/2005JC003094 Abstract: Both ocean march and prediction studies increasingly rely on state appraisal ( i.e., data assimilation ) to provide the most accomplished representation of how the ocean circulates. This study applies the formalism and methodology of country estimate, recently developed for the ball-shaped, coarse-resolution problem, to eddy-permitting state estimate in regional domains. Two major challenges exist for a submit appraisal that is nested inside a ball-shaped express estimate : ( 1 ) appraisal of open-boundary conditions reproducible with information inside and exterior to the regional domain and ( 2 ) estimate with the higher-resolution models of regional studies. here a least squares cost function defines the problem of minimizing the misfit between a North Atlantic regional general circulation model and actual observations, including those of the Subduction Experiment. A beginning experiment, using a novel “ multiscale ” method acting to constrain the large-scale regional circulation, shows that the use of the adjoint of both an eddy-permitting model and its coarse-resolution twin leads to a solution of the least squares problem in a computationally practical means. Therefore no cardinal obstacle exists to constraining the large-scale regional circulation nested within a ball-shaped circulation. A second experiment in the North Atlantic shows that the model circulation can be constrained to the wide experimental signal, including eddy variability, as observed at selected point locations. Both experiments in this learn produce eddy-permitting express estimates which are precisely self-consistent with the equations of motion as embodied by a general circulation model. consequently dynamic balances can be diagnosed and easily interpreted ; in particular, a companion wallpaper uses the state estimates to determine eddy subduction rates in the North Atlantic. Keywords: 4255 Numerical model, 4260 Ocean data assimilation and reanalysis, 4262 Ocean observing systems, 4520 Eddies and mesoscale processes, 4528 Fronts and jets, data synthesis, ocean circulation, state estimate ECCO Products Used: URL: http://dx.doi.org/10.1029/2005JC003094 Other URLs:
Wu, X P; Heflin, M B; Ivins, E R; Fukumori, I (2006). Seasonal and interannual global surface mass variations from multisatellite geodetic data, Journal of Geophysical Research-Solid Earth, B9 (111), B09401, 10.1029/2005jb004100. Title: Seasonal and interannual ball-shaped surface mass variations from multisatellite geodetic data Type: Journal article Publication: Journal of Geophysical Research-Solid Earth Author(s): Wu, X P ; Heflin, M B ; Ivins, E R ; Fukumori, I Year: 2006 Formatted Citation: Wu, X. P., M. B. Heflin, E. R. Ivins, and I. Fukumori, 2006 : seasonal worker and interannual ball-shaped airfoil aggregate variations from multisatellite geodetic data. Journal of Geophysical Research-Solid Earth, 111 ( B9 ), B09401, doi:10.1029/2005jb004100 Abstract: [ 1 ] Monthly global surface multitude distribution changes are estimated in the ball-shaped harmonic sphere with a dispatch spectrum up to degree and order 50. The estimates are derived by inverting GPS shift series measured at approximately 450 continuously tracking sites and ocean bottomland coerce ( OBP ) estimates of a datum assimilated ocean circulation exemplary from 1993 to 2004. The inversion uses a hybrid calculator after singular value decomposition of the normalize measurement equations with reduce reliance on a priori apparitional information. The results are then compared and combined with Gravity Recovery and Climate Experiment ( GRACE ) gravity data to provide enhance apparitional and geographic coverage. high fidelity degree-1 surface multitude variation coefficients are recovered, corresponding to equivalent geocenter gesture with better than 0.5 millimeter annual amplitude precisions in all three components. A clear annual surface mass cycle occurs in both GPS/OBP- and GRACE-derived results. There is very well agreement among the low-degree spherical harmonic coefficients and in global geographic practice but with significant regional differences in amplitudes. annual variations of average mass over the ball-shaped oceans, Antarctica, and Greenland are then derived. sum surface mass over both Antarctica and Greenland peak in their respective summers due to increased atmospheric mass. large interannual variations have besides been found involving respective continents in the 11-year GPS/OBP solution. The patterns of variation suggest that the late satellite laser crop ( SLR ) notice of a reversion in tendency of the Earth ‘s oblateness may be largely an interannual surface bulk bicycle with considerable contribution from the northern continents. Keywords: distortion, earth, field, geocenter variations, global positioning system data, motion, low-lying, arrangement, time-variable graveness, unevenness ECCO Products Used: ECCO-KFS URL: Other URLs:
Kwok, R.; Cunningham, G. F.; Zwally, H. J.; Yi, D. (2006). ICESat over Arctic sea ice: Interpretation of altimetric and reflectivity profiles, Journal of Geophysical Research, C6 (111), C06006, 10.1029/2005JC003175. Title: ICESat over Arctic sea frost : interpretation of altimetric and reflection profiles Type: Journal article Publication: Journal of Geophysical Research Author(s): Kwok, R. ; Cunningham, G. F. ; Zwally, H. J. ; Yi, D. Year: 2006 Formatted Citation: Kwok, R., G. F. Cunningham, H. J. Zwally, and D. Yi, 2006 : ICESat over Arctic sea ice : interpretation of altimetric and reflectiveness profiles. Journal of Geophysical Research, 111 ( C6 ), C06006, doi:10.1029/2005JC003175 Abstract: We provide an assessment of the ICESat altimeter for studying the Arctic Ocean and examine the magnitude of the large- and small-scale expressions of geophysical processes embedded in the elevation profiles. This analysis includes data from six surveys. At the large scale the answer of the ice-covered ocean to atmospheric cargo is near ideal ( i.e., approximately −1 cm/hPa ). After removal of the invert barometer effects and best available geoid the acme signal is however dominated by unsolved geoid residuals ( ∼0.4 megabyte ) that can be seen in the similarity of the remaining spatial patterns. seasonal differences in elevations over multiyear ice rink are consistent with bamboozle depth climatology ; the wide differential spatial patterns are indicative mood of interannual differences in multiyear methamphetamine coverage associated with advection. Patterns in the derived surface roughness fields correspond to the seasonal worker and perennial ice rink zones seen in QuikSCAT data. At the small scale, near-coincident RADARSAT imagination provides a spatial context for understanding the signature of the watch elevations, waveforms, and reflection, in particular, those associated with sparse internal-combustion engine, open water, multiyear ice rink, and ridges. The preciseness of the elevation estimates measured over relatively flat sea frosting, identified in synthetic aperture radar ( SAR ) imagination, is ∼2 centimeter. The unequivocal identification of ridged areas in match ICESat/RADARSAT psychoanalysis could be used to enhance the utility of SAR imagination for examining ridge distributions. Over a 20 day period we monitored the development of the reflectiveness of a newly opened lead. The steep increase in coefficient of reflection due to snow coverage suggests that dips in ICESat reflectiveness are probably areas of thin ice and could serve as a basis for excerpt of tie points for manipulation as ocean degree reference. identification of these tie points is all-important for accurate estimate of sea ice freeboard. Keywords: 0750 Sea methamphetamine, 0758 Remote sense, 0762 Mass libra, 4207 Arctic and Antarctic oceanography, 4540 Ice mechanics and air/sea/ice exchange proces, Arctic Ocean, laser altimetry, sea ice thickness ECCO Products Used: ECCO2 ; SeaIceURL: http://dx.doi.org/10.1029/2005JC003175 Other URLs: hypertext transfer protocol : //doi.wiley.com/10.1029/2005JC003175
Heimbach, P; Ponte, R M; Evangelinos, C; Forget, G; Mazloff, M; Menemenlis, Dimitris; Vinogradov, S; Wunsch, C (2006). Combining Altimetric and All Other Data with a General Circulation Model, Proceedings of the 15 Years of Progress in Radar Altimetry Symposium (SP-614). Title: Combining Altimetric and All other Data with a General Circulation Model Type: Book section Publication: Proceedings of the 15 Years of Progress in Radar Altimetry Symposium Author(s): Heimbach, P ; Ponte, R M ; Evangelinos, C ; Forget, G ; Mazloff, M ; Menemenlis, Dimitris ; Vinogradov, S ; Wunsch, C Year: 2006 Formatted Citation: Heimbach, P., R. M. Ponte, C. Evangelinos, G. Forget, M. Mazloff, D. Menemenlis, S. Vinogradov, and C. Wunsch, 2006 : Combining Altimetric and All other Data with a General Circulation Model. Proceedings of the 15 Years of Progress in Radar Altimetry Symposium, ESA Special Publication SP-614, SP-614 Abstract: Keywords: ECCO Products Used: ECCO-V2 ; ECCO2 URL: Other URLs:
Krakauer, Nir Y; Randerson, James T; Primeau, FranÇOis W; Gruber, Nicolas; Menemenlis, Dimitris (2006). Carbon isotope evidence for the latitudinal distribution and wind speed dependence of the air-sea gas transfer velocity, Tellus B, 5 (58), 390-417, 10.1111/j.1600-0889.2006.00223.x. Title: Carbon isotope testify for the latitudinal distribution and wind accelerate dependence of the air-sea accelerator transfer speed Type: Journal article Publication: Tellus B Author(s): Krakauer, Nir Y ; Randerson, James T ; Primeau, FranÇOis W ; Gruber, Nicolas ; Menemenlis, Dimitris Year: 2006 Formatted Citation: Krakauer, N. Y., J. T. Randerson, F. W. Primeau, N. Gruber, and D. Menemenlis, 2006 : Carbon isotope tell for the latitudinal distribution and wind instrument amphetamine addiction of the air-sea boast transfer speed. Tellus B, 58 ( 5 ), 390-417, doi:10.1111/j.1600-0889.2006.00223.x Abstract: The air-sea gas transfer speed is an important antigenic determinant of the exchange of gases, including CO2, between the standard atmosphere and ocean, but the magnitude of the transplant speed and what factors control it remains ill known. here, we use oceanic and atmospheric observations of 14C and 13C to constrain the ball-shaped think of flatulence transfer speed deoxyadenosine monophosphate well as the exponent of its wind focal ratio dependence, utilizing the distinct signatures left by the air-sea exchange of 14CO2 and 13CO2. While the standard atmosphere and ocean inventories of 14CO2 and 13CO2 constrain the mean natural gas transfer speed, the latitudinal practice in the atmospheric and oceanic 14C and 13C distributions contain information about the wind accelerate dependence. We computed the uptake of fail 14C by the ocean for unlike transfer speed patterns using pulsation response functions from an ocean general circulation model, and evaluated the match between the predicted turkey 14C concentrations and observationally based estimates for the 1970s-1990s. Using a wind speed climatology based on satellite measurements, we solved either for the best-fit global relationship between gasoline exchange and mean wind speed or for the mean boast remove speed over each of 11 ocean regions. We besides compared the predict consequences of different natural gas exchange relationships on the rate of change and interhemisphere gradient of 14C in atmospheric CO2 with tree-ring and atmospheric measurements. Our results suggest that globally, the dependence of the air-sea gasoline transportation speed on scent amphetamine is close to linear, with an exponent of 0.5 ± 0.4, and that the global beggarly flatulence transfer speed at a Schmidt count of 660 is 20 ± 3 cm/hr, similar to the results of former analyses. We find that the air-sea flux of 13C estimated from atmosphere and ocean observations besides suggests a lower than quadratic dependence of accelerator change on wind travel rapidly. Keywords: ECCO Products Used: ECCO-V2URL: http://dx.doi.org/10.1111/j.1600-0889.2006.00223.x Other URLs:
Wunsch, Carl; Heimbach, Patrick (2006). Estimated Decadal Changes in the North Atlantic Meridional Overturning Circulation and Heat Flux 1993-2004, Journal of Physical Oceanography, 11 (36), 2012-2024, 10.1175/JPO2957.1. Title: Estimated Decadal Changes in the North Atlantic Meridional Overturning Circulation and Heat Flux 1993-2004 Type: Journal article Publication: Journal of Physical Oceanography Author(s): Wunsch, Carl ; Heimbach, Patrick Year: 2006 Formatted Citation: Wunsch, C., and P. Heimbach, 2006 : Estimated Decadal Changes in the North Atlantic Meridional Overturning Circulation and Heat Flux 1993-2004. Journal of Physical Oceanography, 36 ( 11 ), 2012-2024, doi:10.1175/JPO2957.1 Abstract: Results from a ball-shaped 1° model constrained by least squares to a multiplicity of datasets over the interval 1992-2004 are used to describe apparent changes in the North Atlantic Ocean meridional overturning circulation and associated heat fluxes at 26°N. The least square fit is both stable and adequately close to the datum to make the analysis worthwhile. Changes over the 12 yr are spatially and temporally complex. A fallible statistically significant drift is found in net North Atlantic volume liquefy above about 1200 megabyte, which drops slenderly ( −0.19 ± 0.05 Sv yr−1 ; 1 Sv ≡ 106 m3 s−1 ) but with a equate strengthen of the escape of North Atlantic Deep Water and inflow of abyssal waters. The flimsy associated tendency in meridional heat blend is very little and not statistically significant. The month-to-month unevenness implies that single-section determinations of heat and volume flux are topic to good aliasing errors. Keywords: Annual variations, Heat flow, North Atlantic Ocean, O ECCO Products Used: URL: http://journals.ametsoc.org/doi/abs/10.1175/JPO2957.1 Other URLs:
Ayoub, Nadia (2006). Estimation of boundary values in a North Atlantic circulation model using an adjoint method, Ocean Modelling, 3-4 (12), 319-347, 10.1016/j.ocemod.2005.06.003. Title: Estimation of limit values in a North Atlantic circulation model using an adjoint method Type: Journal article Publication: Ocean Modelling Author(s): Ayoub, Nadia Year: 2006 Formatted Citation: Ayoub, N., 2006 : estimate of boundary values in a North Atlantic circulation model using an adjoint method. Ocean Modelling, 12 ( 3-4 ), 319-347, doi:10.1016/j.ocemod.2005.06.003 Abstract: A 1° × 1° resolution adaptation of the MIT-GCM in the North Atlantic is used to test whether open-boundary conditions can be constrained by observations inside the domain using an adjoint method acting. In this preliminary feasibility study, the exemplar is run during 1993 with a simplify upright desegregate physics. It is constrained by monthly SST fields, monthly climatological θ, S fields and TOPEX/POSEIDON altimetry. The adjoint model is built using automatic differentiation software. The method acting aims at bringing the model ‘s trajectory to consistency with data, by adjusting the initial θ, S fields, the time-varying atmospheric impel fields and the time-varying open-boundary values. An originality of the sour is the ‘nested approach ‘, which uses optimized fields from a ball-shaped, coarse resolving power exemplary for the open-boundary conditions and for the anterior estimates of the surface conditions adjustments. A solution is obtained after 75 iterations. This study shows that significant changes can be obtained on the open-boundary values, and that a general improvement in the circulation is achieved in the restrain solution, chiefly in the Gulf Stream and equatorial regions. Changes at the open boundaries are characterized by a bombastic temporal unevenness and humble spatial scales. Large local anesthetic adjustments are found close to the bottom and are probable unrealistic. There, the method acting tends to compensate for some model ‘s deficiencies by computing big corrections on the open-boundary values. The analysis of the price serve gradients with respect to the controls allows us to explore the local consistency between the constraints from the different data sets. This study suggests that no cardinal difficulty emerges when constraining open-boundary values. Its extension to a longer run with complete mixing physics can be envisaged. Keywords: Adjoint estimate method acting, MIT-GCM, North Atlantic, Open-boundary values estimate ECCO Products Used: URL: http://www.sciencedirect.com/science/article/pii/S1463500305000624 Other URLs:
Douglass, Elizabeth; Roemmich, Dean; Stammer, Detlef (2006). Interannual variability in northeast Pacific circulation, Journal of Geophysical Research, C4 (111), C04001, 10.1029/2005JC003015. Title: Interannual variability in northeast Pacific circulation Type: Journal article Publication: Journal of Geophysical Research Author(s): Douglass, Elizabeth ; Roemmich, Dean ; Stammer, Detlef Year: 2006 Formatted Citation: Douglass, E., D. Roemmich, and D. Stammer, 2006 : Interannual variability in northeasterly Pacific circulation. Journal of Geophysical Research, 111 ( C4 ), C04001, doi:10.1029/2005JC003015 Abstract: Interannual unevenness of the circulation in the northeasterly Pacific Ocean is explored through a joint analysis of expendable bathythermograph ( XBT ) and expendable conductivity-temperature-depth ( XCTD ) data, satellite altimetry, and end product from a model that was constrained by ocean data. XBT temperature profiles with eminent spatial resolving power are available in the easterly North Pacific along two reprise transects. These ship tracks, along with the seashore of North America, define a close “ box ” which is used to study the time-mean circulation and its unevenness on interannual timescales. Geostrophic velocities from XBT data are compared with geostrophic velocities from model output arsenic well as the broad model speed fields. Correlations in unevenness on interannual timescales between transport in the subpolar coil and in the subtropical coil are present in both model output signal and data. The nature of the variability, and its relation back to the changes of the military capability of the North Pacific Current ( NPC ), which supplies the water for both gyres, are explored. Interannual variability in coil tape drive is found to be related to both the bifurcation of the NPC, resulting in an anticorrelation in transport between the two gyres, and to variations in NPC strength, resulting in coincident changes in the two gyres. The dominant signal is found to be a long-run increase in the NPC, which results in a strengthening of the subtropical coil. potential connections with local-scale fart stress changes and with the El Niño/Southern Oscillation phenomenon are besides explored. Keywords: 4255 Numerical model, 4262 Ocean observing systems, 4275 Remote sensing and electromagnetic processes, 4532 General circulation, model-data comparison, northeast Pacific ECCO Products Used: URL: http://dx.doi.org/10.1029/2005JC003015 Other URLs: hypertext transfer protocol : //doi.wiley.com/10.1029/2005JC003015
Naumann, U; Utke, J; Heimbach, P; Hill, C; Ozyurt, D; Wunsch, C; Fagan, M; Tallent, N; Strout, M (2006). Adjoint Code by Source Transformation with OpenAD/F, ECCOMAS CFD 2006: Proceedings of the European Conference on Computational Fluid Dynamics, May. Title: Adjoint Code by Source Transformation with OpenAD/F Type: Conference Proceedings Publication: ECCOMAS CFD 2006 : Proceedings of the European Conference on Computational Fluid Dynamics Author(s): Naumann, U ; Utke, J ; Heimbach, P ; Hill, C ; Ozyurt, D ; Wunsch, C ; Fagan, M ; Tallent, N ; Strout, M Year: 2006 Formatted Citation: Naumann, U. and Coauthors, 2006 : Adjoint Code by Source Transformation with OpenAD/F. ECCOMAS CFD 2006 : Proceedings of the European Conference on Computational Fluid Dynamics ( May ) hypertext transfer protocol : //ftp8.de.freebsd.org/pub/publications/rwth/informatik/2006/2006-05.pdf. Abstract: This document reports on late advances in the development of the adjoint code generator OpenAD/F. We give an overview of the software design, and we discuss case studies that illustrate the feasibility of adjoint code gener- ation. Our chief target application is the MIT General Circulation Model – a numeric model designed for study of the air, ocean, and climate. Keywords: ECCO Products Used: OpenADURL: http://ftp8.de.freebsd.org/pub/publications/rwth/informatik/2006/2006-05.pdf Other URLs:
Wunsch, Carl (2006). Discrete Inverse and State Estimation Problems. Title: Discrete Inverse and State Estimation Problems Type: Book Publication: Author(s): Wunsch, Carl Year: 2006 Formatted Citation: Wunsch, C., 2006 : Discrete Inverse and State Estimation Problems. Cambridge University Press, Cambridge, 371 pp. doi:10.1017/CBO9780511535949. Abstract: Keywords: ECCO Products Used: URL: http://ebooks.cambridge.org/ref/id/CBO9780511535949 Other URLs:
Cheng, B N (2006). A duality between forward and adjoint MPI communication routines, Comput. Methods Sci. Technol. (12), 23-24, 10.12921/cmst.2006.SI.01.23-24. Title: A duality between forward and adjoint MPI communication routines Type: Journal article Publication: Comput. Methods Sci. Technol. Author(s): Cheng, B N Year: 2006 Formatted Citation: Cheng, B. N., 2006 : A duality between ahead and adjoint MPI communication routines. Comput. Methods Sci. Technol., 12, 23-24, doi:10.12921/cmst.2006.SI.01.23-24 Abstract: In this article, we explore a natural duality that exist between MPI communication routines in parallel programs, and show the ease of its adjoint execution via pointers. Keywords: ECCO Products Used: URL: Other URLs:
Taft, James (2006). Scaling Methods and Results for Applicatiions Running on NASA’s 61 TFLOP Columbia System, 44th AIAA Aerospace Sciences Meeting and Exhibit, 10.2514/6.2006-85. Title: Scaling Methods and Results for Applicatiions Running on NASA ’ s 61 TFLOP Columbia System Type: Conference Proceedings Publication: 44th AIAA Aerospace Sciences Meeting and Exhibit Author(s): Taft, James Year: 2006 Formatted Citation: Taft, J., 2006 : Scaling Methods and Results for Applicatiions Running on NASA ‘s 61 TFLOP Columbia System. 44th AIAA Aerospace Sciences Meeting and Exhibit American Institute of Aeronautics and Astronautics, Reston, Virigina doi:10.2514/6.2006-85. Abstract: Keywords: ECCO Products Used: ECCO2URL: http://arc.aiaa.org/doi/10.2514/6.2006-85 Other URLs:
Han, Shin-Chan; Shum, C. K.; Jekeli, Christopher; Kuo, Chung-Yen; Wilson, Clark; Seo, Ki-Weon (2005). Non-isotropic filtering of GRACE temporal gravity for geophysical signal enhancement, Geophysical Journal International, 1 (163), 18-25, 10.1111/j.1365-246X.2005.02756.x. Title: Non-isotropic trickle of GRACE temporal graveness for geophysical signal enhancement Type: Journal article Publication: Geophysical Journal International Author(s): Han, Shin-Chan ; Shum, C. K. ; Jekeli, Christopher ; Kuo, Chung-Yen ; Wilson, Clark ; Seo, Ki-Weon Year: 2005 Formatted Citation: Han, S., C. K. Shum, C. Jekeli, C. Kuo, C. Wilson, and K. Seo, 2005 : Non-isotropic trickle of GRACE temporal gravity for geophysical sign enhancement. Geophysical Journal International, 163 ( 1 ), 18-25, doi:10.1111/j.1365-246X.2005.02756.x Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: https://academic.oup.com/gji/article-lookup/doi/10.1111/j.1365-246X.2005.02756.x Other URLs:
Chen, Jianli (2005). Global mass balance and the length-of-day variation, Journal of Geophysical Research, B8 (110), B08404, 10.1029/2004JB003474. Title: Global mass balance and the length-of-day variation Type: Journal article Publication: Journal of Geophysical Research Author(s): Chen, Jianli Year: 2005 Formatted Citation: Chen, J., 2005 : global bulk balance and the length-of-day variation. Journal of Geophysical Research, 110 ( B8 ), B08404, doi:10.1029/2004JB003474 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: http://doi.wiley.com/10.1029/2004JB003474 Other URLs:
Gross, R S; Fukumori, I; Menemenlis, Dimitris (2005). Atmospheric and oceanic excitation of decadal-scale Earth orientation variations, Journal of Geophysical Research-Solid Earth, B9 (110), B09405, 10.1029/2004jb003565. Title: Atmospheric and oceanic excitement of decadal-scale Earth orientation variations Type: Journal article Publication: Journal of Geophysical Research-Solid Earth Author(s): Gross, R S ; Fukumori, I ; Menemenlis, Dimitris Year: 2005 Formatted Citation: Gross, R. S., I. Fukumori, and D. Menemenlis, 2005 : Atmospheric and oceanic excitement of decadal-scale Earth orientation variations. Journal of Geophysical Research-Solid Earth, 110 ( B9 ), B09405, doi:10.1029/2004jb003565 Abstract: The contribution of atmospheric wind and airfoil coerce and oceanic current and bottom pressure variations during 1949-2002 to exciting changes in the Earth ‘s orientation on decadal timescales is investigated using an atmospheric angular momentum series computed from the National Centers for Environmental Prediction/National Center for Atmospheric Research ( NCEP/NCAR ) reanalysis project and an oceanic angular momentum series computed from a near-global ocean model that was forced by surface fluxes from the NCEP/NCAR reanalysis visualize. not amazingly, since decadal-scale variations in the length of day are caused chiefly by interactions between the mantel and core, the effect of the atmosphere and oceans is found to be only about 14 % of that observed. More amazingly, it is found that the effect of atmospheric and oceanic processes on decadal-scale changes in pivotal gesticulate is besides only about 20 % ( x component ) and 38 % ( yttrium component ) of that observed. Therefore redistribution of mass within the standard atmosphere and oceans does not appear to be the main cause of the Markowitz shimmy. It is besides found that on timescales between 10 days and 4 years the atmospheric and oceanic angular momentum series used here have very little skill in explaining Earth orientation variations before the mid to late 1970s. This is attributed to errors in both the Earth orientation observations anterior to 1976 when measurements from the accurate space-geodetic techniques became available and to errors in the model atmospheric fields prior to 1979 when the satellite era of ball-shaped weather observing systems began. Keywords: angular-momentum, core, fluctuations, ice, model, diametric apparent motion, reanalysis, representation, rotation, tides ECCO Products Used: ECCO-KFS URL: Other URLs:
Wunsch, Carl (2005). The Total Meridional Heat Flux and Its Oceanic and Atmospheric Partition, Journal of Climate, 21 (18), 4374-4380, 10.1175/JCLI3539.1. Title: The Total Meridional Heat Flux and Its Oceanic and Atmospheric Partition Type: Journal article Publication: Journal of Climate Author(s): Wunsch, Carl Year: 2005 Formatted Citation: Wunsch, C., 2005 : The Total Meridional Heat Flux and Its Oceanic and Atmospheric Partition. J. Clim., 18 ( 21 ), 4374-4380, doi:10.1175/JCLI3539.1 Abstract: Atmospheric meridional hotness enchant is inferred as a residual from the Earth Radiation Budget Experiment ( ERBE ) datum and in situ oceanic estimates. Reversing the conventional approach of computing the ocean as an atmospheric model remainder is done to permit calculation of a preliminary doubt estimate for the atmospheric flux. The structure of the ERBE errors is itself an important uncertainty. Total energy transmit is about identical from a hemispherically antisymmetric analytic function, despite the great asymmetry of the oceanic heat fluxes. ERBE data appear sufficiently noisy so that a considerable image of atmospheric transports remains possible : the maximum atmospheric value lies between 3 and 5 PW in the Northern Hemisphere, at one standard diversion, although the values are sensitive to the noise assumptions made here. The Northern Hemisphere ocean and atmosphere carry comparable poleward heat fluxes to about 28°N where the oceanic flux drops quickly, but does not actually vanish until the oceanic surface area goes to zero. Within the estimate error bars, there is a noteworthy antisymmetry about the equator of the combine ocean and atmospheric transports, despite the marked oceanic transport asymmetry. Keywords: ECCO Products Used: URL: http://journals.ametsoc.org/doi/abs/10.1175/JCLI3539.1 Other URLs:
Menemenlis, Dimitris; Fukumori, I; Lee, T (2005). Using Green’s functions to calibrate an ocean general circulation model, Monthly Weather Review, 5 (133), 1224-1240, 10.1175/Mwr2912.1. Title: Using Green ’ s functions to calibrate an ocean cosmopolitan circulation model Type: Journal article Publication: Monthly Weather Review Author(s): Menemenlis, Dimitris ; Fukumori, I ; Lee, T Year: 2005 Formatted Citation: Menemenlis, D., I. Fukumori, and T. Lee, 2005 : Using Green ‘s functions to calibrate an ocean general circulation model. monthly Weather Review, 133 ( 5 ), 1224-1240, doi:10.1175/Mwr2912.1 Abstract: Green ‘s functions provide a bare yet effective method to test and to calibrate general circulation model ( GCM ) parameterizations, to study and to quantify model and data errors, to correct model biases and trends, and to blend estimates from different solutions and data products. The method is applied to an ocean GCM, resulting in substantial improvements of the solution relative to observations when compared to prior estimates : overall model bias and drift are reduced and there is a 10 % -30 % increase in explain division. Within the context of this optimization, the following newfangled estimates for normally used ocean GCM parameters are obtained. Background vertical diffusivity is ( 15.1 +/- 0.1 ) x 10 ( -6 ) m ( 2 ) s ( -2 ). Background vertical viscosity is ( 18 +/- 3 ) ten 10 ( -6 ) megabyte ( 2 ) second ( -2 ). The critical bulk Richardson phone number, which sets boundary layer astuteness, is Ri ( carbon ), = 0.354 +/- 0.004. The doorsill gradient Richardson issue for shear instability erect desegregate is Rio = 0.699 +/- 0.008. The calculate isopycnal diffusivity coefficient ranges from 550 to 1350 thousand ( 2 ) sulfur ( -2 ), with the largest values occurring at depth in regions of increase mesoscale eddy activity. amazingly, the estimated isopycnal diffusivity exhibits a 5 % -35 % decrease near the surface. Improved estimates of initial and limit conditions are besides obtained. The above estimates are the spine of a quasi-operational, global-ocean circulation psychoanalysis system. Keywords: boundary, climate, data assimilation, fluxes, heat, pacific-ocean, satellite altimetry, transports, volume ECCO Products Used: ECCO-KFS URL: Other URLs:
Thomas, M.; Dobslaw, H.; Stuck, J.; Seitz, F. (2005). The ocean’s contribution to polar motion excitation – as many solutions as numerical models?, Forcing of polar motion in the Chandler frequency band: A contribution to understanding interannual climate variations, Cahiers du Centre Européen de Géodynamique et de Séismologie, 143-148. Title: The ocean ’ s contribution to diametric motion excitement – as many solutions as numerical models ? Type: Book section Publication: Forcing of polar motion in the Chandler frequency band : A contribution to understanding interannual climate variations, Cahiers du Centre Européen de Géodynamique et de Séismologie Author(s): Thomas, M. ; Dobslaw, H. ; Stuck, J. ; Seitz, F. Year: 2005 Formatted Citation: Thomas, M., H. Dobslaw, J. Stuck, and F. Seitz, 2005 : The ocean ‘s contribution to polar apparent motion excitation – as many solutions as numeral models ?. Forcing of polar movement in the Chandler frequency band : A contribution to understanding interannual climate variations, Cahiers du Centre Européen de Géodynamique et de Séismologie, European Center for Geodynamics and Seismology ( ECGS ), 143-148, hypertext transfer protocol : //mediatum.ub.tum.de/1367787 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: https://mediatum.ub.tum.de/1367787 Other URLs:
Davis, R E (2005). Intermediate-depth circulation of the Indian and South Pacific Oceans measured by autonomous floats, Journal of Physical Oceanography, 5 (35), 683-707, 10.1175/jpo2702.1. Title: Intermediate-depth circulation of the indian and South Pacific Oceans measured by autonomous floats Type: Journal article Publication: Journal of Physical Oceanography Author(s): Davis, R E Year: 2005 Formatted Citation: Davis, R. E., 2005 : Intermediate-depth circulation of the amerind and South Pacific Oceans measured by autonomous floats. Journal of Physical Oceanography, 35 ( 5 ), 683-707, doi:10.1175/jpo2702.1 Abstract: As separate of the World Ocean Circulation Experiment, 306 autonomous floats were deployed in the tropical and South Pacific Ocean and 228 were deployed in the indian Ocean to observe the basinwide circulation near 900-m depth. Mean velocities, seasonal variability, and lateral eddy diffusivity from the resultant 2583 float-years of data are presented. Area averages, local function fits, and a novel application of objective map are used to estimate the hateful circulation. Patterns of hateful circulation resemble those at the surface in both basins. Well-developed subtropical gyres, twice as impregnable in the indian Ocean as in the Pacific, feed westerly limit currents. tropical gyres are separated by east menstruate along the equator in both hemispheres of both basins, although the indian subcontinent splits the north indian tropical coil. The antarctic Circumpolar Current ( ACC ) and west wind drifts are outstanding in both basins, by and large tending slightly south but deviating to the north behind the Del Cano, Kerguelen, and Campbell Plateaus and, of naturally, South America. signally, the easterly boundaries of the southern subtropical gyres in all three basins apparently occur in the ocean interior, off from land. The indian Ocean ‘s subtropical coil, and possibly part of the South Atlantic ‘s, reaches east to a retroflection equitable upriver of the Campbell Plateau south of New Zealand. Seasonal unevenness at 900 molarity is focused around the equator with weaker variability found near certain bathymetric features. There is a noteworthy agreement between the observe timely variability and that predicted by the Jet Propulsion Laboratory ( JPL ) -Estimating the Circulation and Climate of the Ocean ( ECCO ) data-assimilating numerical model. away from seasonal worker effects, eddy unevenness is greatest along the equator, in tropical and subtropical westerly basins, and along the ACC. Integrals of speed across regional passages ( Tasman Sea, Mozambique Channel ) provide utilitarian mention for hydrographic analyses of tape drive. Across solid ocean basins, however, the doubt associated with the allow continuity relative for horizontal menstruation ( for example, geostrophy vanadium nondivergence ) is comparable to the base hang. Keywords: alace, run patterns, north-atlantic, topography, total geostrophic circulation, tracers, trajectories, transports, variability, speed ECCO Products Used: ECCO-KFS URL: Other URLs:
Ferreira, David; Marshall, John; Heimbach, Patrick (2005). Estimating Eddy Stresses by Fitting Dynamics to Observations Using a Residual-Mean Ocean Circulation Model and Its Adjoint, Journal of Physical Oceanography, 10 (35), 1891-1910, 10.1175/JPO2785.1. Title: Estimating Eddy Stresses by Fitting Dynamics to Observations Using a Residual-Mean Ocean Circulation Model and Its Adjoint Type: Journal article Publication: Journal of Physical Oceanography Author(s): Ferreira, David ; Marshall, John ; Heimbach, Patrick Year: 2005 Formatted Citation: Ferreira, D., J. Marshall, and P. Heimbach, 2005 : calculate Eddy Stresses by Fitting Dynamics to Observations Using a Residual-Mean Ocean Circulation Model and Its Adjoint. Journal of Physical Oceanography, 35 ( 10 ), 1891-1910, doi:10.1175/JPO2785.1 Abstract: A global ocean circulation model is formulated in terms of the “ residual hateful ” and used to study eddy-mean flow interaction. Adjoint techniques are used to compute the cubic eddy stress field that minimizes the deviation of the coarse-resolution model from climatological observations of temperature. The resulting 3D maps of eddy stress and residual-mean circulation yield a wealth of information about the function of eddies in large-scale ocean circulation. In eddy-rich regions such as the Southern Ocean, the Kuroshio, and the Gulf Stream, eddy stresses have an amplitude comparable to the wind stress, of order 0.2 N m-2, and carry momentum from the coat down to the bottom, where they are balanced by batch phase drag. From the optimized eddy tension, 3D maps of horizontal eddy diffusivity κ are inferred. The diffusivities have a chiseled large-scale structure whose big features are 1 ) big values of κ ( up to 4000 m2s-1 ) in the western limit currents and on the equatorial flank of the Antarctic Circumpolar Current and 2 ) a open intensification of κ, implicative of a dependence on the stratification N2. It is shown that execution of an eddy parameterization scheme in which the eddy diffusivity has an N2 dependence significantly improves the climatology of the ocean model state relative to that obtained using a spatially uniform diffusivity. Keywords: ECCO Products Used: URL: http://dx.doi.org/10.1175/JPO2785.1 Other URLs:
Holme, R.; de Viron, O. (2005). Geomagnetic jerks and a high-resolution length-of-day profile for core studies, Geophysical Journal International, 2 (160), 435-439, 10.1111/j.1365-246X.2004.02510.x. Title: Geomagnetic jerks and a high-resolution length-of-day visibility for core studies Type: Journal article Publication: Geophysical Journal International Author(s): Holme, R. ; de Viron, O. Year: 2005 Formatted Citation: Holme, R., and O. de Viron, 2005 : Geomagnetic jerks and a high-resolution length-of-day profile for core studies. Geophysical Journal International, 160 ( 2 ), 435-439, doi:10.1111/j.1365-246X.2004.02510.x Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: https://academic.oup.com/gji/article-lookup/doi/10.1111/j.1365-246X.2004.02510.x Other URLs:
Stammer, D (2005). Adjusting internal model errors through ocean state estimation, Journal of Physical Oceanography, 6 (35), 1143-1153, 10.1175/jpo2733.1. Title: Adjusting internal model errors through ocean state estimate Type: Journal article Publication: Journal of Physical Oceanography Author(s): Stammer, D Year: 2005 Formatted Citation: Stammer, D., 2005 : Adjusting internal model errors through ocean state of matter estimate. Journal of Physical Oceanography, 35 ( 6 ), 1143-1153, doi:10.1175/jpo2733.1 Abstract: Oceanic country estimate is a potent tool to estimate inner model parameters simultaneously with the model ‘s initial conditions and surface forcing field that jointly would bring a model into consistency with time-varying large-scale ocean observations. here an attack to estimate geographically varying fields of horizontal and upright viscosity and diffusivity within a 9-yr-long estimate operation is presented. The estimate coefficients are highly effective in preserving watermass characteristics and frontal structures by reducing the model temperature and brininess drift, specially around the Southern Ocean. The estimate mean circulation results in stronger transports of western boundary currents and of the Antarctic Circumpolar Current. furthermore, an addition of about 10 % in the force of the meridional overrule circulation and in the poleward heat transport can be found. Estimated changes in the horizontal desegregate coefficients seem to agree with the notion that diapycnal mix is superfically high with Laplacian mix formulations, particularly close up to frontal structures in the ocean. In comparison with adjustments in tracer diffusivities ( vertically and horizontally ), adjustments of viscosity coefficients are fairly minor outside lateral pass boundary regions, suggesting that submit estimate attempts might be most successful in providing enhance insight into tracer mix. Keywords: general-circulation model, heating system, overturning circulation, volume ECCO Products Used: ECCO-V0 URL: Other URLs:
Menemenlis, Dimitris; Hill, Christopher N.; Adcroft, Alistair J.; Campin, Jean-Michel; Cheng, B; Ciotti, B; Fukumori, I; Heimbach, P; Henze, C; Köhl, A; Lee, T; Stammer, D; Taft, J; Zhang, J (2005). NASA supercomputer improves prospects for ocean climate research, Eos, Transactions American Geophysical Union, 9 (86), 89-96, 10.1029/2005EO090002. Title: NASA supercomputer improves prospects for ocean climate research Type: Journal article Publication: Eos, Transactions American Geophysical Union Author(s): Menemenlis, Dimitris ; Hill, Christopher N. ; Adcroft, Alistair J. ; Campin, Jean-Michel ; Cheng, B ; Ciotti, B ; Fukumori, I ; Heimbach, P ; Henze, C ; Köhl, A ; Lee, T ; Stammer, D ; Taft, J ; Zhang, J Year: 2005 Formatted Citation: Menemenlis, D. and Coauthors, 2005 : NASA supercomputer improves prospects for ocean climate research. Eos, Transactions American Geophysical Union, 86 ( 9 ), 89-96, doi:10.1029/2005EO090002 Abstract: Estimates of ocean circulation constrained by in situ and remotely sensed observations have become routinely available during the past five years, and they are being applied to myriad scientific and operational problems [ Stammer et al., 2002 ]. Under the Global Ocean Data Assimilation Experiment ( GODAE ), several regional and ball-shaped estimates have evolved for applications in climate inquiry, seasonal worker forecast, naval operations, marine safety, fisheries, the offshore oil industry coastal management, and early areas. This article reports on late advance by one effort, the consortium for Estimating the Circulation and Climate of the Ocean ( ECCO ), toward a next-generation synthesis of ocean and sea-ice data that is ball-shaped, that covers the full moon ocean depth, and that permits eddies. Keywords: 4215 Climate and interannual variability, 4532 General circulation, 4540 Ice mechanics and air/sea/ice exchange proces ECCO Products Used: ECCO2URL: http://dx.doi.org/10.1029/2005EO090002 Other URLs:
Hoteit, I.; Cornuelle, B.; Köhl, A.; Stammer, D. (2005). Treating strong adjoint sensitivities in tropical eddy-permitting variational data assimilation, Quarterly Journal of the Royal Meteorological Society, 613 (131), 3659-3682, 10.1256/qj.05.97. Title: Treating potent adjoint sensitivities in tropical eddy-permitting variational data assimilation Type: Journal article Publication: Quarterly Journal of the Royal Meteorological Society Author(s): Hoteit, I. ; Cornuelle, B. ; Köhl, A. ; Stammer, D. Year: 2005 Formatted Citation: Hoteit, I., B. Cornuelle, A. Köhl, and D. Stammer, 2005 : Treating firm adjoint sensitivities in tropical eddy-permitting variational data assimilation. quarterly Journal of the Royal Meteorological Society, 131 ( 613 ), 3659-3682, doi:10.1256/qj.05.97 Abstract: Keywords: ECCO Products Used: SOSEURL: http://doi.wiley.com/10.1256/qj.05.97 Other URLs:
Hirose, Naoki; Fukumori, Ichiro; Kim, Cheol-Ho; Yoon, Jong-Hwan (2005). Numerical simulation and satellite altimeter data assimilation of the Japan Sea circulation, Deep Sea Research Part II: Topical Studies in Oceanography, 11 (52), 1443-1463, 10.1016/j.dsr2.2004.09.034. Title: Numerical simulation and satellite altimeter data acculturation of the Japan Sea circulation Type: Journal article Publication: Deep Sea Research Part II : topical Studies in oceanography Author(s): Hirose, Naoki ; Fukumori, Ichiro ; Kim, Cheol-Ho ; Yoon, Jong-Hwan Year: 2005 Formatted Citation: Hirose, N., I. Fukumori, C. Kim, and J. Yoon, 2005 : numeral simulation and satellite altimeter data acculturation of the Japan Sea circulation. Deep Sea Research Part II : topical Studies in Oceanography, 52 ( 11 ), 1443-1463, doi:10.1016/j.dsr2.2004.09.034 Abstract: The time-evolving state of the Japan Sea is estimated by an eddy-permitting ocean general circulation model and an assimilation of TOPEX/POSEIDON ( T/P ) and ERS-1/2 altimeter data using an approximate Kalman filter. The imitate low-lying variabilities are interpreted in sexual intercourse to the Tsushima Warm Current, the Polar Front, and the subpolar coil. The model and assimilate estimates account for about 29 % and 49 % of the measured sea level variance, respectively, and the dispute between the two is by and large attributed to mesoscale unevenness corrections. The courtly erroneousness covariance and separate assimilation of the satellite altimeter data reveal the higher efficacy of the ERS data in detecting the mesoscale variability compared to the T/P datum. The assimilation impact lasts for a few months, reflecting the long life of the subpolar coil and the mesoscale eddies. Keywords: ECCO Products Used: URL: http://www.sciencedirect.com/science/article/pii/S0967064505000998 Other URLs:
Chen, J. L.; Wilson, C. R. (2005). Hydrological excitations of polar motion, 1993-2002, Geophysical Journal International, 3 (160), 833-839, 10.1111/j.1365-246X.2005.02522.x. Title: Hydrological excitations of polar motion, 1993-2002 Type: Journal article Publication: Geophysical Journal International Author(s): Chen, J. L. ; Wilson, C. R. Year: 2005 Formatted Citation: Chen, J. L., and C. R. Wilson, 2005 : Hydrological excitations of arctic motion, 1993-2002. Geophysical Journal International, 160 ( 3 ), 833-839, doi:10.1111/j.1365-246X.2005.02522.x Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: https://academic.oup.com/gji/article-lookup/doi/10.1111/j.1365-246X.2005.02522.x Other URLs:
Heimbach, Patrick; Hill, Chris; Giering, Ralf (2005). An efficient exact adjoint of the parallel MIT General Circulation Model, generated via automatic differentiation, Future Gener. Comput. Syst., 8 (21), 1356-1371, 10.1016/j.future.2004.11.010. Title: An efficient exact adjoint of the parallel MIT General Circulation Model, generated via automatic pistol differentiation Type: Journal article Publication: Future Gener. Comput. Syst. Author(s): Heimbach, Patrick ; Hill, Chris ; Giering, Ralf Year: 2005 Formatted Citation: Heimbach, P., C. Hill, and R. Giering, 2005 : An efficient accurate adjoint of the analogue MIT General Circulation Model, generated via automatic rifle differentiation. future Gener. Comput. Syst., 21 ( 8 ), 1356-1371, doi:10.1016/j.future.2004.11.010 Abstract: Keywords: ECCO Products Used: adjoint URL: Other URLs:
Worcester, Peter F.; Cornuelle, Bruce D.; Dzieciuch, Matthew A.; Munk, Walter H. (2005). North Pacific Acoustic Laboratory : Deep Water Acoustic Propagation in the Philippine Sea, Munk, Walter H, 1-11. Title: North Pacific Acoustic Laboratory : deep Water Acoustic Propagation in the Philippine Sea Type: Report Publication: Munk, Walter H Author(s): Worcester, Peter F. ; Cornuelle, Bruce D. ; Dzieciuch, Matthew A. ; Munk, Walter H. Year: 2005 Formatted Citation: Worcester, P. F., B. D. Cornuelle, M. A. Dzieciuch, and W. H. Munk, 2005 : North Pacific Acoustic Laboratory : deep Water Acoustic Propagation in the Philippine Sea. Munk, Walter H, La Jolla, CA, 1-11 pp. Abstract: The North Pacific Acoustic Laboratory ( NPAL ) program is intended to improve our understand of ( i ) the basic physics of low-frequency, broadband propagation in deep water, including the effects of oceanographic variability on signal stability and coherence, ( two ) the structure of the ambient make noise field in deep water system at low frequencies, and ( three ) the extent to which acoustic methods, together with other measurements and coupled with ocean model, can yield estimates of the time-evolving ocean state useful for acoustic predictions. The goal is to determine the fundamental limits to bespeak process in deep water system imposed by ocean processes, enabling advance signal work techniques to capitalize on the three-dimensional character of the sound and noise fields. Keywords: acoust, coherence, deep water acoustic propagation ECCO Products Used: ECCO-KFSURL: https://apps.dtic.mil/docs/citations/ADA531825 Other URLs: hypertext transfer protocol : //apps.dtic.mil/dtic/tr/fulltext/u2/a531825.pdf
Seo, K.-W.; Wilson, C. R. (2005). Simulated estimation of hydrological loads from GRACE, Journal of Geodesy, 7-8 (78), 442-456, 10.1007/s00190-004-0410-5. Title: fake estimate of hydrological loads from GRACE Type: Journal article Publication: Journal of Geodesy Author(s): Seo, K.-W. ; Wilson, C. R. Year: 2005 Formatted Citation: Seo, K., and C. R. Wilson, 2005 : model estimate of hydrological loads from GRACE. Journal of Geodesy, 78 ( 7-8 ), 442-456, doi:10.1007/s00190-004-0410-5 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: http://link.springer.com/10.1007/s00190-004-0410-5 Other URLs:
Zhou, Y H; Chen, J L; Liao, X H; Wilson, C R (2005). Oceanic excitations on polar motion: a cross comparison among models, Geophysical Journal International, 2 (162), 390-398, 10.1111/j.1365-246X.2005.02694.x. Title: Oceanic excitations on polar apparent motion : a cross comparison among models Type: Journal article Publication: Geophysical Journal International Author(s): Zhou, Y H ; Chen, J L ; Liao, X H ; Wilson, C R Year: 2005 Formatted Citation: Zhou, Y. H., J. L. Chen, X. H. Liao, and C. R. Wilson, 2005 : oceanic excitations on arctic motion : a hybrid comparison among models. Geophysical Journal International, 162 ( 2 ), 390-398, doi:10.1111/j.1365-246X.2005.02694.x Abstract: Recent studies based on diverse ocean general circulation models ( OGCMs ) prove that the oceans are a major subscriber to polar movement excitations. In this paper, we analyse and compare observed non-atmospheric arctic motion excitations with oceanic angular momentum ( OAM ) variations determined from four OGCMs, which include the analogue ocean climate model ( POCM ), a barotropic ocean model ( BOM ), the Estimating the Circulation and Climate of the Ocean ( ECCO ) non-data-assimilating exemplary ( ECCO-NDA ) and the ECCO data-assimilating model ( ECCO-DA ). The datum to be analysed span a 5-yr overlap period from 1993 to 1997. At annual timescale, considerable discrepancies exist between POCM and the early three models, which result chiefly from differences in annual components of the wedge wind fields. At semi-annual timescale, however, POCM shows better phase agreement with note non-atmospheric polar gesticulate excitation than the other three ocean models. At intraseasonal timescales, ECCO-DA yields better agreement with observations, and reduces the variation of non-atmospheric excitations by similar to 60 per penny, 10-20 per penny more than those explained by the early three models. however, at the very short periods of 4-20 days, the BOM estimates could explain about half of the observe division, twice a much as that by ECCO-NDA, and besides shows well better correlation with observations. due to different modelling schemes and methods, significant discrepancies could arise with regard to the quality of modelling large-scale oceanic mass redistribution and current version. A complete agreement of global oceanic contributions to arctic movement excitement hush remains a challenge. Keywords: angular-momentum, atmosphere, circulation mannequin, earth careen, equations, excitement, momentum ( OAM ), ocean general circulation model ( OGCM ), oceanic angular, polar motion, atmospheric pressure, rotation, low-lying, signals, unevenness ECCO Products Used: ECCO-KFS URL: Other URLs:
Menemenlis, Dimitris; Hill, C; Adcroft, Alistair J.; Campin, J; Cheng, B; Lee, T; Steele, M; Wang, O; Zhang, J (2005). Towards eddy permitting estimates of the global-ocean and sea-ice circulations, 8th Conference on Polar Meteorology and Oceanography, 1-6. Title: Towards eddy permitting estimates of the global-ocean and sea-ice circulations Type: Conference Proceedings Publication: 8th league on Polar Meteorology and Oceanography Author(s): Menemenlis, Dimitris ; Hill, C ; Adcroft, Alistair J. ; Campin, J ; Cheng, B ; Lee, T ; Steele, M ; Wang, O ; Zhang, J Year: 2005 Formatted Citation: Menemenlis, D. and Coauthors, 2005 : Towards eddy permitting estimates of the global-ocean and sea-ice circulations. 8th conference on Polar Meteorology and Oceanography, 1-6 pp. Abstract: Satellite and in-situ observations are now routinely combined with numerical models in order to estimate the time-evolving oceanic circulation and to address a wide kind of functional and research problems. For climate dynamics analysis, what is required is a synthesis of all available observations over the last several decades with the best possible numeral mannequin. rigorous low-resolution estimates of ocean circulation are already possible using the existing data free-base and model capability. But these low-resolution estimates lack the ability to resolve many small-scale oceanic processes, for example, hang over minute sills, western limit currents, regions of deep convection, and eddies, that are important both for climate studies and for functional applications. I will discuss four holocene advances that bring rigorous eddy-permitting estimates of the global ocean and sea-ice circulations within pass : 1 ) the shape of an effective eddy-permitting global-ocean and sea-ice model that achieves a throughput approaching ten years of model integration per day of calculation, 2 ) the presentation that boundary conditions estimated at coarse settlement have some skill when applied to an eddy-permitting model, 3 ) the development of an cheap yet effective methodology for calibrating model parameters and for blending estimates from different solutions and data products, and 4 ) a hierarchical Kalman trickle that can estimate model uncertainties commensurate with available degrees of freedom in observations and the model. This is a contribution of the consortium for Estimating the Circulation and Climate of the Ocean ( ECCO ) and of the Arctic Sea-ice Ocean Reanalysis ( ASOR ) stick out. Keywords: ECCO Products Used: ECCO2URL: https://ams.confex.com/ams/Annual2005/techprogram/paper_88068.htm Other URLs: hypertext transfer protocol : //ams.confex.com/ams/pdfpapers/88068.pdf
Lee, Tong; Liu, Timothy W (2005). Effects of high-frequency wind sampling on simulated mixed layer depth and upper ocean temperature, Journal of Geophysical Research: Oceans, C5 (110), 10.1029/2004JC002746. Title: Effects of high-frequency tip sampling on simulated interracial layer depth and upper ocean temperature Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Lee, Tong ; Liu, Timothy W Year: 2005 Formatted Citation: Lee, T., and T. W. Liu, 2005 : Effects of high-frequency wind sampling on simulated interracial layer depth and upper ocean temperature. J. Geophys. Res. Ocean., 110 ( C5 ), doi:10.1029/2004JC002746 Abstract: Effects of high-frequency tip sampling on a near-global ocean model are studied by forcing the model with a 12 hourly averaged fart product and its 24 hourly subsamples in separate experiments. The differences in desegregate layer depth and sea coat temperature resulting from these experiments are examined, and the implicit in physical processes are investigated. The 24 hourly subsampling not only reduces the high-frequency variability of the wind but besides affects the annual entail wind because of aliasing. While the former impression largely impacts mid- to high-latitude oceans, the latter chiefly affects tropical and coastal oceans. At mid- to high-latitude regions the subsampled wind results in a shallower mix layer and higher sea airfoil temperature because of reduce vertical mix associated with weaker high-frequency scent. In tropical and coastal regions, however, the change in upper ocean structure due to the scent subsampling is primarily caused by the difference in advection resulting from aliased annual mean fart, which varies with the subsampling time. The results of the study indicate a indigence for more frequent sampling of satellite wind measurement and have implications for data acculturation in terms of identifying the nature of model errors. Keywords: high-frequency wind, shuffle layer, sea come on temperature ECCO Products Used: ECCO-KFSURL: https://doi.org/10.1029/2004JC002746 Other URLs:
Köhl, Armin (2005). Anomalies of Meridional Overturning: Mechanisms in the North Atlantic, Journal of Physical Oceanography, 8 (35), 1455-1472, 10.1175/JPO2767.1. Title: Anomalies of Meridional Overturning : Mechanisms in the North Atlantic Type: Journal article Publication: Journal of Physical Oceanography Author(s): Köhl, Armin Year: 2005 Formatted Citation: Köhl, A., 2005 : Anomalies of Meridional Overturning : Mechanisms in the North Atlantic. Journal of Physical Oceanography, 35 ( 8 ), 1455-1472, doi:10.1175/JPO2767.1 Abstract: Keywords: ECCO Products Used: ECCO-V1URL: http://journals.ametsoc.org/doi/abs/10.1175/JPO2767.1 Other URLs:
Zhang, Jinlun (2005). Effect of sea ice rheology in numerical investigations of climate, Journal of Geophysical Research, C8 (110), C08014, 10.1029/2004JC002599. Title: Effect of sea ice rheology in numeric investigations of climate Type: Journal article Publication: Journal of Geophysical Research Author(s): Zhang, Jinlun Year: 2005 Formatted Citation: Zhang, J., 2005 : impression of ocean ice rink rheology in numeral investigations of climate. Journal of Geophysical Research, 110 ( C8 ), C08014, doi:10.1029/2004JC002599 Abstract: Keywords: ECCO Products Used: ECCO2URL: http://doi.wiley.com/10.1029/2004JC002599 Other URLs:
Glazman, Roman E; Golubev, Yury N (2005). Variability of the ocean-induced magnetic field predicted at sea surface and at satellite altitudes, Journal of Geophysical Research: Oceans, C12 (110), 10.1029/2005JC002926. Title: Variability of the ocean-induced magnetic field predicted at sea coat and at satellite altitudes Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Glazman, Roman E ; Golubev, Yury N Year: 2005 Formatted Citation: Glazman, R. E., and Y. N. Golubev, 2005 : variability of the ocean-induced charismatic field predicted at ocean open and at satellite altitudes. J. Geophys. Res. Ocean., 110 ( C12 ), doi:10.1029/2005JC002926 Abstract: Spatial and temporal variability of the magnetic field part induced by ocean circulation is investigated on the basis of a standard thin-shell estimate of electro- and magneto-static equations. long-familiar difficulties of numeral solution of the govern equations are resolved by reducing the problem to an equation for the electric battlefield electric potential, Φ, as opposed to a more conventional approach path focused on the vertical leap out, ψ, of the magnetic discipline potential across a compound ocean/marine-sediment-layer spherical carapace. The present formulation permits using more realistic stimulation data on ocean currents and ultimately yields much greater ( by at least an order of magnitude ) values of the magnetic field at sea surface than predicted in earlier studies. such big values are comparable to, and in some cases exceed, magnetic field variations caused by lithospheric and ionospheric sources on monthly to interannual timescales. At the 400-km elevation ( of CHAMP satellite ), the field attains 6 national trust. The model predictions show favorable comparisons with some in situ measurements a well as with Challenging Minisatellite Payload ( CHAMP ) satellite magnetometer data. Keywords: 0619 Electromagnetic theory, 0689 Wave propagation, 1517 magnetic anomalies : model and interpretati, 1545 spatial variations : all harmonics and anomali, 4275 Remote sensing and electromagnetic processes, Earth ‘s magnetic field, ocean induction, ocean remote sensing ECCO Products Used: ECCO-KFS ; ECCO2URL: http://dx.doi.org/10.1029/2005JC002926 Other URLs:
Marshall, J (2005). CLIMODE: A mode water dynamics experiment in support of CLIVAR, U.S. CLIVAR VariationsCLIVAR Variations, 2 (3), 8-14, 10.1029/2005GL022350.Mysak. Title: CLIMODE : A mood water dynamics experiment in support of CLIVAR Type: Magazine article Publication: U.S. CLIVAR VariationsCLIVAR Variations Author(s): Marshall, J Year: 2005 Formatted Citation: Marshall, J., 2005 : CLIMODE : A mode body of water dynamics experiment in support of CLIVAR. U.S. CLIVAR VariationsCLIVAR Variations, 3 ( 2 ), 8-14 pp. doi:10.1029/2005GL022350.Mysak. Abstract: n/a Keywords: ECCO Products Used: URL: http://www-paoc.mit.edu/paoc/papers/climode%7B_%7Dsummary.pdf Other URLs:
Žuvela-Aloise, Maja (2005). Modelling of the Indonesian Throughflow on glacial-interglacial time-scales. Title: Modelling of the Indonesian Throughflow on glacial-interglacial time-scales Type: thesis Publication: Author(s): Žuvela-Aloise, Maja Year: 2005 Formatted Citation: Žuvela-Aloise, M., 2005 : model of the Indonesian Throughflow on glacial-interglacial time-scales, December Abstract: The indonesian Throughflow transports warm and fresh Pacific waters into the indian Ocean and is a major tropical nerve pathway of the ball-shaped thermohaline circulation. An important paleoclimatic question is to what extent lowered sea charge at the survive Glacial Maximum effected the indonesian Throughflow by restricting the gateway aperture. In this discipline, a regional dynamics of the indonesian Throughflow are analysed for present- day and last Glacial Maximum conditions. The focus of the report is on the impact of changes in indonesian Gateways shape on ocean circulation and distribution of marine organisms. A eminent resoluteness regional ocean model with seasonal wedge is used to simulate base climatic circulation through the Indonesian Gateways. During the concluding Glacial Maximum, both bathymetry and climate conditions were different. relative importance of individual effects is investigated by individually testing the sensitivity of the ITF volume and heat transport to the sea degree lower and to the arctic climate conditions. The closure of the main passages is expected to reduce bastardly ITF transport during the glacial period. however, model results show that reduction in the arctic sea level of 120 meter does not seem to be sufficient to sternly block the stream within the Makassar Strait as the independent passage of the Throughflow. An crucial impact of topographical changes is found in the upright profile of the flow. decrease in sill depth and absence of low buoyancy airfoil waters due to the exposure of shelf area lead to intensification of surface flow within Makassar Strait. furthermore, the seasonality of the surface stream is changed compared to the contemporary. Both effects might have significant impingement on the hotness transport towards the indian Ocean. A impregnable affect of individual passages on ITF profile and seasonal unevenness emphasis the character of Indonesian Gateways on modulating the water masses exchange between the Pacific and the indian Ocean. however, the intensity of the Throughflow seems to be highly dependent on the limit conditions. glacial climate conditions lead to reduction in ITF enchant which might be related to several factors out of oscilloscope of regional dynamics. such factors could include arctic changes in scent stress over Pacific, changes in density gradient between Pacific and indian Ocean or overall El- Niño conditions over the tropical Pacific. In summation, by calculating Lagrangian trajectories, chief pathways, velocities of propagation and probabilities of commute of marine biota between the Pacific and the indian Ocean can be assessed. The modernize patterns of distribution can be in the future compared with sedimentological attest from the area. Keywords: ECCO Products Used: ECCO-KFS ; ECCO-V0 ; ECCO2 URL: Other URLs:
Mechoso, Carlos R; Cazes-Boezio, Gabriel; Menemenlis, Dimitris (2005). Experimental ENSO predictions by the UCLA atmospheric GCM coupled to the MIT and POP Oceanic GCMs using the Earth System Modeling Framework (ESMF), Proceedings of the NASA Earth Science Technology Conference 2005, 1-5. Title: Experimental ENSO predictions by the UCLA atmospheric GCM coupled to the MIT and POP Oceanic GCMs using the Earth System Modeling Framework ( ESMF ) Type: Conference Proceedings Publication: Proceedings of the NASA Earth Science Technology Conference 2005 Author(s): Mechoso, Carlos R ; Cazes-Boezio, Gabriel ; Menemenlis, Dimitris Year: 2005 Formatted Citation: Mechoso, C. R., G. Cazes-Boezio, and D. Menemenlis, 2005 : experimental ENSO predictions by the UCLA atmospheric GCM coupled to the MIT and POP Oceanic GCMs using the Earth System Modeling Framework ( ESMF ). Proceedings of the NASA Earth Science Technology Conference 2005, College Park, MD, 1-5 pp. hypertext transfer protocol : //esto.nasa.gov/conferences/estc2005/papers/a7p1.pdf. Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: https://esto.nasa.gov/conferences/estc2005/papers/a7p1.pdf Other URLs:
Chen, J.L.; Wilson, C.R.; Tapley, B.D. (2005). Interannual variability of low-degree gravitational change, 1980-2002, Journal of Geodesy, 9 (78), 535-543, 10.1007/s00190-004-0417-y. Title: Interannual variability of low-degree gravitational change, 1980-2002 Type: Journal article Publication: Journal of Geodesy Author(s): Chen, J.L. ; Wilson, C.R. ; Tapley, B.D. Year: 2005 Formatted Citation: Chen, J., C. Wilson, and B. Tapley, 2005 : Interannual variability of low-degree gravitational exchange, 1980-2002. Journal of Geodesy, 78 ( 9 ), 535-543, doi:10.1007/s00190-004-0417-y Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: http://link.springer.com/10.1007/s00190-004-0417-y Other URLs:
Wunsch, C (2005). Thermohaline loops, Stommel box models, and the Sandstrom theorem, Tellus Series a-Dynamic Meteorology and Oceanography, 1 (57), 84-99, 10.1111/j.1600-0870.2005.00093.x. Title: Thermohaline loop, Stommel box models, and the Sandstrom theorem Type: Journal article Publication: Tellus Series a-Dynamic Meteorology and Oceanography Author(s): Wunsch, C Year: 2005 Formatted Citation: Wunsch, C., 2005 : Thermohaline loops, Stommel box models, and the Sandstrom theorem. Tellus Series a-Dynamic Meteorology and Oceanography, 57 ( 1 ), 84-99, doi:10.1111/j.1600-0870.2005.00093.x Abstract: The Stommel two-box, two flow-regime box model is kinematically and dynamically equivalent to the stream in a unidimensional fluid iteration, although one having awkward and extreme blend coefficients. More by and large, such a loop, when heated and cooled at the like geopotential, provides a simple model of the exercise of the Sandstrom theorem, with flow intensity capable of increasing or decreasing with growing diffusion. Stress dominates real number oceanic flows, and its introduction into the strictly thermally driven loop topology generates oscillations, multiple states, and instabilities at humble diffusivity. When, within the Boussinesq estimate, brininess storm and mix boundary conditions are further introduced, an intricate traffic pattern of response appears, pendent upon at least five non-dimensional parameters, including the time of attack of salt storm. The ability, in a linear loop, to produce such a rich array of dynamic behaviors, subject in detail upon the problem parameters, suggests that in the absence of any general results relating one- to cubic fluid flows, designation of the time-dependent behavior of a GCM with that of the unidimensional loop Stommel models should be regarded as still primarily speculation. Keywords: boundary-condition, chaos, balance, flow, ball-shaped ocean circulation, instability, stability, thermal-convection, thermosyphon ECCO Products Used: URL: Other URLs:
Adcroft, Alistair J.; Hill, Chris; Campin, Jean-Michael; Marshall, John; Heimbach, Patrick (2004). Overview of the formulation and numerics of the MITgcm, Proceedings of the ECMWF seminar series on Numerical Methods Recent developments in numerical methods for atmosphere and ocean modelling, 139-149. Title: Overview of the formulation and numerics of the MITgcm Type: Conference Proceedings Publication: Proceedings of the ECMWF seminar series on Numerical Methods Recent developments in numerical methods for standard atmosphere and ocean model Author(s): Adcroft, Alistair J. ; Hill, Chris ; Campin, Jean-Michael ; Marshall, John ; Heimbach, Patrick Year: 2004 Formatted Citation: Adcroft, A. J., C. Hill, J. Campin, J. Marshall, and P. Heimbach, 2004 : overview of the conceptualization and numerics of the MITgcm. Proceedings of the ECMWF seminar series on Numerical Methods Recent developments in numeric methods for atmosphere and ocean model, 139-149 pp. hypertext transfer protocol : //www.gfdl.noaa.gov/~aja/papers/ECMWF2004-Adcroft.pdf. Abstract: The MIT general circulation model ( MITgcm ) is a widely portable circulation model designed for study of a wide crop of scales in both the ocean and standard atmosphere. The model is rooted in the incompressible Navier-Stokes equations and can include the non-hydrostatic terms that are significant in mixing processes. In the hydrostatic specify, an isomorphism between altitude based-coordinates and atmospheric pressure based-coordinates allows the same dynamic kernel to drive an atmospheric model. The model uses finite volume methods and orthogonal curvilineal coordinates in the horizontal that can accommodate fresh ball-shaped grids such as that based on the conformally expand ball-shaped cube. An adjoint of the model is maintained using automatic specialization. Keywords: ECCO Products Used: ECCO2URL: http://www.gfdl.noaa.gov/~aja/papers/ECMWF2004-Adcroft.pdf Other URLs:
Worcester, Peter F; Cornuelle, Bruce D; Dushaw, Brian D.; Dzieciuch, Matthew A; Howe, Bruce M; Menemenlis, Dimitris; Mercer, James A; Munk, Walter H; Spindel, Robert C; Stammer, Detlef; Zarnetske, Michael (2004). ACOUSTIC REMOTE SENSING OF LARGE-SCALE TEMPERATURE VARIABILITY IN THE NORTH PACIFIC OCEAN, Gayana (Concepción), 2 (68), 576-577, 10.4067/S0717-65382004000300047. Title: ACOUSTIC REMOTE SENSING OF LARGE-SCALE TEMPERATURE VARIABILITY IN THE NORTH PACIFIC OCEAN Type: Journal article Publication: Gayana ( Concepción ) Author(s): Worcester, Peter F ; Cornuelle, Bruce D ; Dushaw, Brian D. ; Dzieciuch, Matthew A ; Howe, Bruce M ; Menemenlis, Dimitris ; Mercer, James A ; Munk, Walter H ; Spindel, Robert C ; Stammer, Detlef ; Zarnetske, Michael Year: 2004 Formatted Citation: Worcester, P. F. and Coauthors, 2004 : ACOUSTIC REMOTE SENSING OF LARGE-SCALE TEMPERATURE VARIABILITY IN THE NORTH PACIFIC OCEAN. Gayana ( Concepción ), 68 ( 2 ), 576-577, doi:10.4067/S0717-65382004000300047 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382004000300047&lng=en&nrm=iso&tlng=en Other URLs:
McKinley, Galen A.; Follows, Michael J.; Marshall, J (2004). Mechanisms of air-sea CO2 flux variability in the equatorial Pacific and the North Atlantic, Global Biogeochemical Cycles, 2 (18), 10.1029/2003gb002179. Title: Mechanisms of air-sea CO2 flux unevenness in the equatorial Pacific and the North Atlantic Type: Journal article Publication: Global Biogeochemical Cycles Author(s): McKinley, Galen A. ; Follows, Michael J. ; Marshall, J Year: 2004 Formatted Citation: McKinley, G. A., M. J. Follows, and J. Marshall, 2004 : Mechanisms of air-sea CO2 flux variability in the equatorial Pacific and the North Atlantic. Global Biogeochemical Cycles, 18 ( 2 ), doi:10.1029/2003gb002179 Abstract: A global ocean general circulation model is used to estimate the magnitude of interannual unevenness in air-sea fluxes of CO2 and O-2 from 1980-1998 and to examine the controlling mechanism. The ball-shaped unevenness in the air-sea flux of carbon ( +/-0.5 ten 10 ( 15 ) grams Carbon year ( -1 ) ( PgC yr ( -1 ) ) ) is forced by changes of DeltapCO ( 2 ) and wind speeds related to the El Nino/Southern Oscillation ( ENSO ) bicycle in the equatorial Pacific. In contrast the air-sea O-2 flux is controlled by two regions : the equatorial Pacific and North Atlantic. The exemplary captures much of the interannual unevenness of the CO2 flux observed at Bermuda, with some correlation coefficient with the North Atlantic Oscillation ( NAO ) index. however, basin-scale air-sea CO2 flux anomalies are not correlated with the NAO due to a rapid neutralization of entrain DIC anomalies by biological uptake and export production in the subpolar coil. CO2 flow variability estimates from our ocean model and the mean atmospheric inversion results of Bousquet et alabama. [ 2000 ] are in wide agreement in the equatorial Pacific, but not in the North Atlantic. This mannequin suggests that the protrusion of air-sea flux anomalies onto the large-scale, average air-sea flux model in atmospheric inversions may lead to an overestimate of the flux variability in the extra-tropics where the patterns of unevenness do not correspond to those of the average flux. Keywords: air-sea exchange, atmospheric transport, carbon paper flux, carbon-cycle, circulation model, el-nino, gas-exchange, interannual unevenness, nino-southern oscillation, ocean, ocean modeling, subtropical coil, surface temperature ECCO Products Used: ECCO-KFS URL: Other URLs:
Lee, T (2004). Decadal weakening of the shallow overturning circulation in the South Indian Ocean, Geophysical Research Letters, 18 (31), 10.1029/2004gl020884. Title: Decadal sabotage of the shallow overturning circulation in the South indian Ocean Type: Journal article Publication: Geophysical Research Letters Author(s): Lee, T Year: 2004 Formatted Citation: Lee, T., 2004 : Decadal weaken of the shallow overturning circulation in the South amerind Ocean. Geophys. Res. Lett., 31 ( 18 ), doi:10.1029/2004gl020884 Abstract: Satellite observations reveal a significant weaken of the southeasterly craft wind over the South indian Ocean during 1992-2000 and a result slowdown of the shallow meridional overturning circulation in this Ocean. The estimate rate of the slowdown of this circulation, 6.8+/-1.4×10 ( 6 ) megabyte ( 3 ) /s over the 9-year period, is closely 70 % of the mean strength of this circulation. Such a change has important implications to upper-ocean heat content and decadal climate variability of the amerind Ocean, a well as to the ecosystem and air-sea exchange of CO2 in the region. Keywords: arabian sea, exchange, heat, model, pacific-ocean, sea-surface temperature, thermocline, transports, unevenness, global ocean ECCO Products Used: URL: Other URLs:
Wang, O; Fukumori, I; Lee, T; Johnson, G C (2004). Eastern equatorial Pacific Ocean T-S variations with El Nino, Geophysical Research Letters, 4 (31), L04305, 10.1029/2003gl019087. Title: Eastern equatorial Pacific Ocean T-S variations with El Nino Type: Journal article Publication: Geophysical Research Letters Author(s): Wang, O ; Fukumori, I ; Lee, T ; Johnson, G C Year: 2004 Formatted Citation: Wang, O., I. Fukumori, T. Lee, and G. C. Johnson, 2004 : eastern equatorial Pacific Ocean T-S variations with El Nino. Geophys. Res. Lett., 31 ( 4 ), L04305, doi:10.1029/2003gl019087 Abstract: Temperature-Salinity ( T-S ) relationship variability in the pycnocline of the eastern equatorial Pacific Ocean ( NINO3 region, 5 degreesS – 5 degreesN, 150 degreesW – 90 degreesW ) over the last two decades is investigate using experimental data and model pretense. A numerical model pretense using the MITgcm ( Massachusetts Institute of Technology General Circulation Model ) suggests that, during El Nino years, the water in the easterly equatorial Pacific Ocean becomes saltier ( by 0.1 to 0.2 ) and warmer ( by 0.5 to 1 degreesC ) on concentration surfaces within the pycnocline. This simulation is coherent with Conductivity-Temperature-Depth ( CTD ) data collected largely during Tropical Atmosphere Ocean ( TAO ) mooring maintenance cruises. Keywords: circulation, la-nina, exemplary, volume ECCO Products Used: ECCO-KFS URL: Other URLs:
Marshall, J; Adcroft, Alistair J.; Campin, Jean-Michel; Hill, C; White, A (2004). Atmosphere-ocean modeling exploiting fluid isomorphisms, Monthly Weather Review, 12 (132), 2882-2894, 10.1175/mwr2835.1. Title: Atmosphere-ocean mold exploiting fluid isomorphisms Type: Journal article Publication: Monthly Weather Review Author(s): Marshall, J ; Adcroft, Alistair J. ; Campin, Jean-Michel ; Hill, C ; White, A Year: 2004 Formatted Citation: Marshall, J., A. J. Adcroft, J. Campin, C. Hill, and A. White, 2004 : Atmosphere-ocean modeling exploiting fluid isomorphisms. Monthly Weather Review, 132 ( 12 ), 2882-2894, doi:10.1175/mwr2835.1 Abstract: Mathematical isomorphism between the hydrostatic equations that govern the development of a compressible atmosphere and an incompressible ocean are described and exploited to guide the design of a hydrodynamical kernel for model of either fluid. Keywords: climatology, coordinate, equations, gcm, general-circulation models, motion, representation, simulations ECCO Products Used: URL: Other URLs:
Vivier, Frédéric; Maier-Reimer, Ernst; Tyler, Robert H. (2004). Simulations of magnetic fields generated by the Antarctic Circumpolar Current at satellite altitude: Can geomagnetic measurements be used to monitor the flow?, Geophysical Research Letters, 10 (31), 1-5, 10.1029/2004GL019804. Title: Simulations of magnetic fields generated by the Antarctic Circumpolar Current at satellite elevation : Can geomagnetic measurements be used to monitor the menstruation ? Type: Journal article Publication: Geophysical Research Letters Author(s): Vivier, Frédéric ; Maier-Reimer, Ernst ; Tyler, Robert H. Year: 2004 Formatted Citation: Vivier, F., E. Maier-Reimer, and R. H. Tyler, 2004 : Simulations of magnetic fields generated by the Antarctic Circumpolar Current at satellite altitude : Can geomagnetic measurements be used to monitor the menstruation ? Geophys. Res. Lett., 31 ( 10 ), 1-5, doi:10.1029/2004GL019804 Abstract: With a book transportation of ~134 Keywords: ECCO Products Used: ECCO-KFS URL: Other URLs:
Lu, Y Y; Stammer, D (2004). Vorticity balance in coarse-resolution global ocean simulations, Journal of Physical Oceanography, 3 (34), 605-622, 10.1175/2504.1. Title: Vorticity counterweight in coarse-resolution global ocean simulations Type: Journal article Publication: Journal of Physical Oceanography Author(s): Lu, Y Y ; Stammer, D Year: 2004 Formatted Citation: Lu, Y. Y., and D. Stammer, 2004 : Vorticity libra in coarse-resolution global ocean simulations. Journal of Physical Oceanography, 34 ( 3 ), 605-622, doi:10.1175/2504.1 Abstract: The vorticity budget of the vertically desegregate circulation from two global ocean simulations is analyzed using a horizontal space of 2degrees ten 2degrees in longitude/latitude. The two simulations differ in their initial hydrographic conditions and open wind and irrepressibility push. The stiffen pretense obtains optimum initial condition and surface forcing through assimilating experimental data using the model ‘s adjoint, whereas the unconstrained simulation uses Levitus climatological conditions for low-level formatting and is driven by NCEP – NCAR reanalysis wedge, plus restoring to the monthly surface temperature and salt climatological conditions. The goal is to examine the dynamics that sets the time-mean circulation and to understand the differences between the constrained and unconstrained simulations. It is found that, like to eddy-permitting simulations, the bottom pressure torsion ( BPT ) in coarse-resolution models plays an significant character in the western boundary currents and in the Southern Ocean, and largely balances the difference between wind stress curl and betaV for the depth-integrated stream. BPT is a controlling agent of the interior abyssal flow. The geostrophic vorticity relation holds in the inside basins in intermediate and deep layers and breaks down in the amphetamine ocean toward the surface. In the upper layer of the department of the interior basins, the exemplary simulations show statistically significant diversion from the Sverdrup counterweight. In the subtropical coil regions, the deviation from Sverdrup remainder is confined to zonal bands that are balanced by the curl of lateral clash and nonlinear advection. The differences between the constrained and unconstrained simulations are significant in vorticity terms. The adaptation to Levitus hydrographic climatological data as the model ‘s initial condition causes the most significant changes in BPT, which is the main reason for changes in abyssal hang. The analysis besides points to needs for promote improvement of models and controlling the charm of data errors in ocean state estimate. Keywords: 24-degrees-n, abysmal circulation, currents, model, north-atlantic, pacific, sverdrup libra, ecstasy, global ocean ECCO Products Used: ECCO-V0 URL: Other URLs:
Chen, J. L.; Wilson, C. R.; Tapley, B. D.; Ries, J. C. (2004). Low degree gravitational changes from GRACE: Validation and interpretation, Geophysical Research Letters, 22 (31), 10.1029/2004GL021670. Title: Low degree gravitational changes from GRACE : establishment and interpretation Type: Journal article Publication: Geophysical Research Letters Author(s): Chen, J. L. ; Wilson, C. R. ; Tapley, B. D. ; Ries, J. C. Year: 2004 Formatted Citation: Chen, J. L., C. R. Wilson, B. D. Tapley, and J. C. Ries, 2004 : low degree gravitational changes from GRACE : establishment and interpretation. Geophys. Res. Lett., 31 ( 22 ), doi:10.1029/2004GL021670 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: http://doi.wiley.com/10.1029/2004GL021670 Other URLs:
Dommenget, D; Stammer, D (2004). Assessing ENSO simulations and predictions using adjoint ocean state estimation, Journal of Climate, 22 (17), 4301-4315, 10.1175/3211.1. Title: Assessing ENSO simulations and predictions using adjoint ocean state appraisal Type: Journal article Publication: Journal of Climate Author(s): Dommenget, D ; Stammer, D Year: 2004 Formatted Citation: Dommenget, D., and D. Stammer, 2004 : Assessing ENSO simulations and predictions using adjoint ocean country estimate. J. Clim., 17 ( 22 ), 4301-4315, doi:10.1175/3211.1 Abstract: Simulations and seasonal forecasts of tropical Pacific SST and subsurface fields that are based on the global consortium for Estimating the Circulation and Climate of the Ocean ( ECCO ) ocean-state estimate routine are investigated. As compared to alike results from a traditional ENSO simulation and calculate routine, the hindcast of the constrained ocean state of matter is significantly closer to observed coat and subsurface conditions. The skill of the 12-month leash SST prognosis in the equatorial Pacific is comparable in both approaches. The optimization appears to have better skill in the SST anomaly correlations, suggesting that the initial ocean conditions and forcing corrections calculated by the ocean-state appraisal do have a positivist impact on the predictive skill. however, the optimized forecast skill is presently limited by the low quality of the statistical atmosphere. progress is expected from optimizing a copulate mannequin over a longer clock time interval with the coupling statistics being share of the control condition vector. Keywords: standard atmosphere model, data assimilation, el-nino, general-circulation model, hybrid coupled, model, pacific, sea-surface temperature, system ECCO Products Used: ECCO-V0 URL: Other URLs:
Gross, R S; Fukumori, I; Menemenlis, Dimitris; Gegout, P (2004). Atmospheric and oceanic excitation of length-of-day variations during 1980-2000, Journal of Geophysical Research-Solid Earth, B1 (109), B01406, 10.1029/2003jb002432. Title: Atmospheric and oceanic excitement of length-of-day variations during 1980-2000 Type: Journal article Publication: Journal of Geophysical Research-Solid Earth Author(s): Gross, R S ; Fukumori, I ; Menemenlis, Dimitris ; Gegout, P Year: 2004 Formatted Citation: Gross, R. S., I. Fukumori, D. Menemenlis, and P. Gegout, 2004 : Atmospheric and oceanic excitement of length-of-day variations during 1980-2000. Journal of Geophysical Research-Solid Earth, 109 ( B1 ), B01406, doi:10.1029/2003jb002432 Abstract: [ 1 ] Although nontidal changes in the Earth ‘s length-of-day on timescales of a few days to a few years are primarily caused by changes in the angular momentum of the zonal winds, other processes can be expected to cause the length-of-day to change a well. here the proportional contribution of upper atmospheric winds, surface pressure, oceanic currents, and ocean-bottom press to changing the length-of-day during 1980 – 2000 is evaluated using estimates of atmospheric angular momentum from the National Centers for Environmental Prediction/ National Center for Atmospheric Research reanalysis project, estimates of the angular momentum of the zonal winds in the upper atmosphere from the United Kingdom Meteorological Office, and estimates of oceanic angular momentum from the Estimating the Circulation and Climate of the Ocean consortium ‘s model of the general circulation of the oceans. On intraseasonal timescales, atmospheric surface blackmail, oceanic currents, and ocean-bottom coerce are found to be about evenly important in causing the length-of-day to change, while upper atmospheric winds are found to be less authoritative than these mechanisms. On seasonal worker timescales, the upper atmospheric winds are more crucial than the sum of currents and penetrate pressure in causing the length-of-day to change and, except at the annual frequency, are even more significant than surface imperativeness changes. On interannual timescales, oceanic currents and ocean-bottom pressure are found to be merely marginally effective in causing the length-of-day to change. Keywords: axial angular-momentum, buttocks atmospheric pressure, boussinesq approximation, earth rotation, earth rotation, general-circulation, ball-shaped ocean, length-of-day, model, oceanic angular momentum, polar gesture, low-lying, seasonal budget ECCO Products Used: ECCO-KFS URL: Other URLs:
Li, X W; Wunsch, C (2004). An adjoint sensitivity study of chlorofluorocarbons in the North Atlantic, Journal of Geophysical Research-Oceans, C1 (109), 10.1029/2003jc002014. Title: An adjoint sensitivity learn of chlorofluorocarbons in the North Atlantic Type: Journal article Publication: Journal of Geophysical Research-Oceans Author(s): Li, X W ; Wunsch, C Year: 2004 Formatted Citation: Li, X. W., and C. Wunsch, 2004 : An adjoint sensitivity study of chlorofluorocarbons in the North Atlantic. J. Geophys. Res. Ocean., 109 ( C1 ), doi:10.1029/2003jc002014 Abstract: [ 1 ] Adjoint sensitivities of CFC-11 concentrations and CFC-11/CFC-12 ratio ages in a North Atlantic general circulation model are analyzed. These sensitivities are compared with those of spiciness, T – ( beta/alpha ) S, where alpha, beta are the thermal and haline expansion coefficients, respectively. High-sensitivity fields are candidates for providing the most mighty constraints in the represent inverse problems. In the double ( adjoint ) solutions all three variables exhibit the major breathing pathways and define the consort timescales in the model. overall, however, spiciness shows the highest sensitivity to the hang field. In the North Atlantic Deep Water, sensitivities of CFC properties and spiciness to the isopycnal mix and thickness dispersion are of the same orderliness of magnitude. In the lower subtropical thermocline, sensitivities of CFC properties to the isopycnal desegregate and thickness dispersion are higher. The utility of this sensitivity is undermined by the indigence to reconstruct their boundary conditions. Given the influence of T, S measurements on the density airfield, they produce the most knock-down constraints on the model on the large plate. It placid remains possible, however, that transeunt tracers can provide a larger relative information contented concerning the mixing action between the near-surface boundary layer and the thermocline but subject upon the ability to reconstruct accurate initial and boundary conditions. Keywords: adjoint sensitivity, atlantic, chlorofluoromethanes, structure, deep equatorial, general-circulation model, global ocean circulation, heat, pacific-ocean, state estimate, thermocline, transeunt tracers, breathing, water ECCO Products Used: adjoint URL: Other URLs:
Wang, O; Fukumori, I; Lee, T; Cheng, B (2004). On the cause of eastern equatorial Pacific Ocean T-S variations associated with El Nino, Geophysical Research Letters, 15 (31), 10.1029/2004gl020188. Title: On the cause of eastern equatorial Pacific Ocean T-S variations associated with El Nino Type: Journal article Publication: Geophysical Research Letters Author(s): Wang, O ; Fukumori, I ; Lee, T ; Cheng, B Year: 2004 Formatted Citation: Wang, O., I. Fukumori, T. Lee, and B. Cheng, 2004 : On the campaign of eastern equatorial Pacific Ocean T-S variations associated with El Nino. Geophys. Res. Lett., 31 ( 15 ), doi:10.1029/2004gl020188 Abstract: The nature of note variations in temperature-salinity ( T-S ) relationship between El Nino and non-El Nino years in the pycnocline of the easterly equatorial Pacific Ocean ( NINO3 region, 5degreesS-5degreesN, 150degreesW-90degreesW ) is investigated using an ocean general circulation model. The origin of the subject water mass is identified using the adjoint of a simulated passive tracer. The higher salt during El Nino is attributed to larger convergence of salty water from the Southern Hemisphere and smaller convergence of fresh water from the Northern Hemisphere. Keywords: limit, circulation, model, brininess variability, tropical pacific ECCO Products Used: ECCO-KFS URL: Other URLs:
Lee, T; Fukumori, I; Tang, B (2004). Temperature advection: Internal versus external processes, Journal of Physical Oceanography, 8 (34), 1936-1944, 10.1175/1520-0485(2004)034<1936:Taivep>2.0.Co;2. Title: Temperature advection : Internal versus external processes Type: Journal article Publication: Journal of Physical Oceanography Author(s): Lee, T ; Fukumori, I ; Tang, B Year: 2004 Formatted Citation: Lee, T., I. Fukumori, and B. Tang, 2004 : temperature advection : Internal versus external processes. Journal of Physical Oceanography, 34 ( 8 ), 1936-1944, doi:10.1175/1520-0485 ( 2004 ) 034 < 1936 : Taivep > 2.0.Co ; 2 Abstract: Local advection of temperature is the inner product of vector speed and spatial gradient of temperature. This product is frequently integrated spatially to infer temperature advection over a region. however, the contribution along an individual direction can be dominated by inner processes that redistribute heat within the sphere but do not control the inflame message of the world. A new conceptualization of temperature advection is introduced to elucidate external estrus source and sink that control the spatially average temperature. It is expressed as the advection of interfacial temperature relative to the spatially average temperature of the world by inflow normal to the interface. It gives a sum advection of temperature that is identical to the spatial integration of local temperature advection, so far the contributions along individual directions depict external processes. The differences between the two formulations are illustrated by analyzing zonal advection of near-surface temperature in the eastern equatorial Pacific during the 1997-98 El Nino and the subsequent La Nina by an ocean general circulation model. The modern conceptualization highlights the advection of affectionate body of water at the western side of the Nino-3 area into ( out of ) the region to create part of the calefacient ( cooling ) leaning during El Nino ( La Nina ). In contrast, the traditional conceptualization is dominated by the consequence of tropical imbalance waves within the region that redistribute hotness internally. The deviation between the two formulations suggests a necessitate for circumspection in discerning mechanisms controlling heat content of a region. spatial integration of local temperature advection does not explain external processes that control a domain ‘s inflame contented. The conclusion applies not only to the advection of oceanic temperature, but besides to that of any property in any medium. Keywords: 1997-98 el-nino, equatorial pacific, heat-budget, mechanisms, exemplar, ocean ECCO Products Used: ECCO-KFS URL: Other URLs:
Zerbini, S; Matonti, F; Raicich, F; Richter, B; van Dam, T (2004). Observing and assessing nontidal ocean loading using ocean, continuous GPS and gravity data in the Adriatic area, Geophysical Research Letters, 23 (31), 10.1029/2004gl021185. Title: Observing and assessing nontidal ocean loading using ocean, continuous GPS and gravity data in the Adriatic area Type: Journal article Publication: Geophysical Research Letters Author(s): Zerbini, S ; Matonti, F ; Raicich, F ; Richter, B ; van Dam, T Year: 2004 Formatted Citation: Zerbini, S., F. Matonti, F. Raicich, B. Richter, and T. van Dam, 2004 : watch and assessing nontidal ocean loading using ocean, continuous GPS and graveness data in the Adriatic area. Geophys. Res. Lett., 31 ( 23 ), doi:10.1029/2004gl021185 Abstract: The effect of nontidal ocean load ( NTOL ) is observed in the height series of four permanent wave GPS stations in the northern Adriatic. A establishment of the ECCO model is performed by comparing model estimates of low-lying anomalies from tide-gauges with TOPEX/POSEIDON data, and ECCO mannequin estimates of bottom blackmail with those derived from temperature and salt observations. The amplitudes of the ECCO low-lying anomaly are found to be 1.4 times smaller than observations ; bottom blackmail is 2 times smaller. Using a Green ‘s functions approach to determine elastic deformations, the ECCO ocean bottom coerce is used to estimate open displacements at the GPS sites. Model results were compared with the altitude series and with the respect NTOL effect. The acme series and the predicted NTOL are highly correlated at all four stations. The analysis performed on superconducting hydrometer data at the Medicina station besides shows high correlation coefficient. Keywords: distortion, displacements, ground, acme, mass, redistribution, sea, surface, system ECCO Products Used: ECCO-V1 URL: Other URLs:
Chen, J.-L.; Wilson, C R; Hu, X.-G.; Zhou, Y.-H.; Tapley, B D (2004). Oceanic effects on polar motion determined from an ocean model and satellite altimetry: 1993-2001, Journal of Geophysical Research: Solid Earth, B2 (109), 10.1029/2003JB002664. Title: Oceanic effects on arctic gesticulate determined from an ocean model and satellite altimetry : 1993-2001 Type: Journal article Publication: Journal of Geophysical Research : solid earth Author(s): Chen, J.-L. ; Wilson, C R ; Hu, X.-G. ; Zhou, Y.-H. ; Tapley, B D Year: 2004 Formatted Citation: Chen, J., C. R. Wilson, X. Hu, Y. Zhou, and B. D. Tapley, 2004 : oceanic effects on polar gesticulate determined from an ocean exemplar and satellite altimetry : 1993-2001. Journal of Geophysical Research : solid Earth, 109 ( B2 ), doi:10.1029/2003JB002664 Abstract: Mass redistribution and motion in the oceans are major driving forces of geodetic variations, including diametric gesticulate, duration of day, geocenter, and gravity airfield changes. We examine oceanic contribution to polar motion using estimates from a data-assimilating ocean general circulation mannequin and satellite radar altimeter observations. The data include model estimates of variations in oceanic batch ( OBP ) and meridional and zonal velocities. Sea tied anomalies from TOPEX/Poseidon ( T/P ) satellite altimeter measurements and steric sea airfoil altitude changes deduced from the model are besides used to estimate OBP effects. Estimated oceanic contributions from both the model and T/P show well better agreement with diametric motion observations compared with results from previous studies. The improvement is particularly meaning at intraseasonal timescales. Both OBP and ocean stream variations provide crucial contributions to pivotal motion. At intraseasonal timescales the oceans appear to be a dominant allele contributor to residual polar motion not accounted for by the atmosphere. The oceans besides play an important character in seasonal worker excitement. Combined OBP and ocean current contributions explain much of the residual semiannual variability. Keywords: OGCM, ocean, polar apparent motion, satellite altimeter ECCO Products Used: ECCO-KFSURL: https://doi.org/10.1029/2003JB002664 Other URLs:
Stammer, D; Ueyoshi, K; Kohl, A; Large, W G; Josey, S A; Wunsch, C (2004). Estimating air-sea fluxes of heat, freshwater, and momentum through global ocean data assimilation, Journal of Geophysical Research-Oceans, C5 (109), 10.1029/2003jc002082. Title: Estimating air-sea fluxes of estrus, fresh water, and momentum through ball-shaped ocean data assimilation Type: Journal article Publication: Journal of Geophysical Research-Oceans Author(s): Stammer, D ; Ueyoshi, K ; Kohl, A ; Large, W G ; Josey, S A ; Wunsch, C Year: 2004 Formatted Citation: Stammer, D., K. Ueyoshi, A. Kohl, W. G. Large, S. A. Josey, and C. Wunsch, 2004 : Estimating air-sea fluxes of heating system, fresh water, and momentum through ball-shaped ocean data assimilation. J. Geophys. Res. Ocean., 109 ( C5 ), doi:10.1029/2003jc002082 Abstract: [ 1 ] ECCO express estimate results from 10 years during World Ocean Circulation Experiment are used to asses the timbre of surface flow adjustments made to the initial NCEP re-analysis-1 products. During the state appraisal routine, surface fluxes are adjusted together with initial temperature and salt conditions so that the exemplary simulation becomes consistent with ocean observations. Independent estimates of the adjustments from bulk formula and regional field observations are besides employed to evaluate the results. Buoyancy flux adjustments are found to be within the unrefined prior error bars on these fields. Outside the limit current regions, they are consistent with known large-scale deficiencies in the NCEP products. Wind stress adjustments are besides everywhere within the anterior erroneousness bars, but parade regional minor features that reflect ocean model failures to resolve acute boundary currents. On large scales, the deduce adjustments to NCEP wind try fields are consistent with inferences made from satellite wind stress measurements. far improvements in the come on flux estimates obtained through state estimate procedures are anticipated as the estimate routine becomes more complete by including the function of better prior error covariance data, and as the ocean model becomes more adept, for model, in simulating boundary currents by increasing its settlement. Keywords: air-sea fluxes, air, bulk parameterization, construction, data assimilation, general-circulation model, layer, ncep, ocean synthesis, reanalyses, reanalysis project, satellite measurements, come on temperature, tropical ocean ECCO Products Used: ECCO-V1 URL: Other URLs:
Kohl, A; Stammer, D (2004). Optimal observations for variational data assimilation, Journal of Physical Oceanography, 3 (34), 529-542, 10.1175/2513.1. Title: Optimal observations for variational data assimilation Type: Journal article Publication: Journal of Physical Oceanography Author(s): Kohl, A ; Stammer, D Year: 2004 Formatted Citation: Kohl, A., and D. Stammer, 2004 : optimum observations for variational data assimilation. Journal of Physical Oceanography, 34 ( 3 ), 529-542, doi:10.1175/2513.1 Abstract: An crucial part of ocean department of state appraisal is the design of an watch system that allows for the efficient study of climate related questions in the ocean. A solution to the design problem is presented here in terms of optimum observations that emerge as curious vectors of the modified data resolution matrix. The actual calculation is feasible only for scalar quantities and in the limit of bombastic experimental errors. Identical twin experiments performed in the model of a 18 North Atlantic primitive equation exemplar show that such optimum observations, when applied to determining the hotness transmit across the Greenland – Scotland ridge, perform significantly better than traditional segment data. On seasonal worker to interannual meter scales, optimum observations are located primarily along the continental shelf and information about heat tape drive, wind stress, and stratification is being communicated through boundary waves and advective processes. On meter scales of about 1 calendar month, ocean coat height observations appear to be more effective in reconstructing the cross-ridge heat ecstasy than hydrographic observations. optimum observations besides provide a joyride for understand changes of ocean state associated with anomalies of integral quantities such as meridional heat transportation. Keywords: construction, design, general-circulation model, heat-transport, nordic seas, north-atlantic, ocean, bubble over, pacific, sensitivity ECCO Products Used: URL: Other URLs:
Adcroft, Alistair J.; Campin, Jean-Michel (2004). Rescaled height coordinates for accurate representation of free-surface flows in ocean circulation models, Ocean Modelling, 3-4 (7), 269-284, 10.1016/j.ocemod.2003.09.003. Title: Rescaled height coordinates for accurate representation of free-surface flows in ocean circulation models Type: Journal article Publication: Ocean Modelling Author(s): Adcroft, Alistair J. ; Campin, Jean-Michel Year: 2004 Formatted Citation: Adcroft, A. J., and J. Campin, 2004 : Rescaled stature coordinates for accurate representation of free-surface flows in ocean circulation models. Ocean Modelling, 7 ( 3-4 ), 269-284, doi:10.1016/j.ocemod.2003.09.003 Abstract: Conventional altitude organize models have previously represented free-surface variations by a varying thickness upper layer. We present a reseal altitude align, which we call z*, that treats the time-dependent free open as a coordinate surface. This coordinate is isomorphous with the atmospheric eta coordinate, sometimes known as the step-mountain coordinate. The z* align has besides been used in a coastal ocean model. however, unlike both these implementations, here we use the finite volume method acting within the z* organize framework, allowing an accurate representation of topography. The result scheme provides a very accurate representation of motions over steep topography in a three-dimensional general circulation model, even with flying and boastfully amplitude free-surface variations. ( C ) 2003 Elsevier Ltd. All rights reserved. Keywords: cells, coordinate transformation, free, inner wave generation, north-atlantic, numeral upwind prediction, ocean model, pressure, schemes, coat, topography, vertical coordinate ECCO Products Used: URL: Other URLs:
Campin, Jean-Michel; Adcroft, Alistair J.; Hill, C; Marshall, J (2004). Conservation of properties in a free-surface model, Ocean Modelling, 3-4 (6), 221-244, 10.1016/s1463-5003(03)00009-x. Title: Conservation of properties in a free-surface model Type: Journal article Publication: Ocean Modelling Author(s): Campin, Jean-Michel ; Adcroft, Alistair J. ; Hill, C ; Marshall, J Year: 2004 Formatted Citation: Campin, J., A. J. Adcroft, C. Hill, and J. Marshall, 2004 : conservation of properties in a free-surface model. Ocean Modelling, 6 ( 3-4 ), 221-244, doi:10.1016/s1463-5003 ( 03 ) 00009-x Abstract: In altitude coordinate ocean models, natural conservation of tracers ( temperature, salt or any passive tracer ) requires that the thickness of the coat cellular telephone varies with the free-surface displacement, leading to a non-linear free-surface formulation ( NLFS ). however, NLFS does not guarantee exact conservation unless extra concern is taken in the execution, and in particular the meter stepping outline, as pointed out by Griffies et aluminum. ( monthly Weather Rev. 129 ( 2001 ) 1081 ). This paper presents a general method to implement a NLFS in a button-down room, using an implicit complimentary surface formulation. Details are provided for two tracer clock stepping schemes, both second order in time and quad : a two time-level schema, such as Lax-Wendroff system, guarantees exact tracer conservation ; a three time-level scheme such as the Adams-Bashforth II requires further adaptations to achieve claim local conservation and accurate ball-shaped conservation preventing long term drift of the model tracer capacity. No compromise is required between local and ball-shaped conservation since the method accurately conserves any tracer. In summation to the normally used back fourth dimension stepping, the implicit unblock coat conceptualization besides offers the option of a Crank-Nickelson time stepping which conserves the department of energy. The methods are tested in idealize experiments designed to emphasize problems of tracer and energy conservation. The tests show the ability of the NLFS method acting to conserve tracers, in contrast to the linear free-surface formulation. At test of energy conservation reveals that free-surface backward time-stepping strongly damps the solution. In contrast, Crank-Nickelson prison term stepping precisely conserves energy in the pure linear case and confirms the NLFS improvement relative to the linear free-surface when momentum advection is included. ( C ) 2003 Elsevier Ltd. All rights reserved. Keywords: circulation models, free-surface, general, semtner ocean exemplary, shallow water system equations, tracer conservation ECCO Products Used: URL: Other URLs:
Reddy, P R C; Salvekar, P S; Deo, A A; Ganer, D W (2004). Westward propagating twin gyres in the equatorial Indian Ocean, Geophysical Research Letters, 1 (31), 10.1029/2003gl018615. Title: Westward propagating gemini gyres in the equatorial indian Ocean Type: Journal article Publication: Geophysical Research Letters Author(s): Reddy, P R C ; Salvekar, P S ; Deo, A A ; Ganer, D W Year: 2004 Formatted Citation: Reddy, P. R. C., P. S. Salvekar, A. A. Deo, and D. W. Ganer, 2004 : Westward propagating duplicate gyres in the equatorial indian Ocean. Geophys. Res. Lett., 31 ( 1 ), doi:10.1029/2003gl018615 Abstract: A reduced-gravity ( 1 1/2-layer ) model forced by daily climatological winds simulates twin, anticyclonic gyres, which propagate westbound on either side of the equator. The gyres form at the begin of both the Southwest Monsoon and the Northeast monsoon in the equatorial eastern indian Ocean, and subsequently propagate across the basin. Their universe is supported by speed observations taken during WOCE in 1995 and by TOPEX/Poseidon low-lying observations during 1993. They are besides present in the ECCO model/data product. They form at the front man of a Rossby-wave package generated by the reflection of the equatorial jet ( EJ ) from the eastern limit of the basin. They are likely either Rossby solitons or resultant role from the nonlinear interaction between the EJ and the Rossby-wave presence. Keywords: circulation, el-nino, pacific-ocean, rossby waves, somalian current, southwest monsoon ECCO Products Used: ECCO-V1 URL: Other URLs:
Ito, T; Marshall, J; Follows, Michael J. (2004). What controls the uptake of transient tracers in the Southern Ocean?, Global Biogeochemical Cycles, 2 (18), 10.1029/2003gb002103. Title: What controls the uptake of ephemeral tracers in the southerly Ocean ? Type: Journal article Publication: Global Biogeochemical Cycles Author(s): Ito, T ; Marshall, J ; Follows, Michael J. Year: 2004 Formatted Citation: Ito, T., J. Marshall, and M. J. Follows, 2004 : What controls the consumption of transient tracers in the southerly Ocean ? Global Biogeochemical Cycles, 18 ( 2 ), doi:10.1029/2003gb002103 Abstract: We apply “ remainder hateful ” theory of tracer ecstasy, in which eddy transfer plays a fundamental role, to develop scalings and idealize numerical models of the Southern Ocean uptake of ephemeral tracers. The streamline-averaged numeral exemplary, which represents transportation in the meridional airplane, captures the detect distributions of CFC-11, bomb-Delta ( 14 ) C, and anthropogenetic CO2. The model reproduces the observe relationship between CFC-11 and bomb-Delta ( 14 ) C and suggests that the upper branch of the residual revolutionize menstruate in the southern Ocean is about 14 Sv, supporting previous inferences based on the detect airiness distribution and air-sea buoyancy fluxes. scale analysis suggests that the limit of fast air-sea gasoline exchange is applicable to CFC-11, for which the coat concentration is close to chemical equilibrium and accumulative ocean uptake is largely determined by physical enchant processes. In the slow gas exchange restrict, applicable to bomb-Delta ( 14 ) C, the surface assiduity is far from chemical equilibrium and the accumulative consumption is most sensible to the parameterization of the flatulence transfer coefficient. Anthropogenic CO2 falls between those two limit cases and is sensitive to both tape drive processes and the gas transfer coefficient. Sensitivity studies using the streamline-averaged exemplar suggest that uncertainties in air-sea airiness fluxes in current climatologies result in significant doubt in estimates of Southern Ocean consumption of anthropogenetic CO2 based on circulation and biogeochemistry models driven by, or brought into consistency with, the climatological flux. This doubt is sufficient to explain a significant total of the spread in a recent model comparison study. Keywords: Southern Ocean, air out, antarctic circumpolar current, anthropogenetic carbon dioxide, carbon-dioxide, circulation models, gas-exchange, residual beggarly hypothesis, sea, ephemeral tracers, transport ECCO Products Used: URL: Other URLs:
Kolaczek, B.; Nastula, J. (2004). Impact of the addition of the ocean to the atmospheric excitation ofpolar motion on variability of spectra and correlation with polar motion, Proceedings of the Journées 2003 “Systèmes deréférence spatio-temporels”: Astrometry, Geodynamics and Solar System Dynamics: from milliarcseconds to microarcseconds, held at IAA,, 22-25 September 2003, 150-155. Title: Impact of the summation of the ocean to the atmospheric excitation ofpolar motion on variability of spectrum and correlation with polar gesticulate Type: Conference Proceedings Publication: Proceedings of the Journées 2003 “ Systèmes deréférence spatio-temporels ” : Astrometry, Geodynamics and Solar System Dynamics : from milliarcseconds to microarcseconds, held at IAA, , 22-25 September 2003 Author(s): Kolaczek, B. ; Nastula, J. Year: 2004 Formatted Citation: Kolaczek, B., and J. Nastula, 2004 : shock of the addition of the ocean to the atmospheric excitation ofpolar apparent motion on unevenness of spectrum and correlation coefficient with polar gesture. Proceedings of the Journées 2003 “ Systèmes deréférence spatio-temporels ” : Astrometry, Geodynamics and Solar System Dynamics : from milliarcseconds to microarcseconds, held at IAA, , 22-25 September 2003, A. Finkelstein, and N. Capitaine, Eds., St.Petersburg, Russia, 150-155 pp. hypertext transfer protocol : //syrte.obspm.fr/jsr/journees2003/pdf/s2_09_Kolaczek.pdf. Abstract: Impact of the addition of the ocean to the atmospheric excitement ofpolar motion on unevenness of spectrum of polar gesticulate and correlationwith pivotal motion is investigated. Variations of the seasonal worker andsubseasonal spectrum of the atmospheric and joint atmospheric plusoceanic excitation functions of arctic motion and their time variationsare computed by the Fourier Transform Function and compared. Thesespectra are identical similar. Correlations between geodetic and eitheratmospheric or articulation atmospheric plus oceanic excitation functions arecomputed in four spectrum bands range from 10 to 500 days. In all casescorrelation coefficients for joint atmospheric plus oceanic excitationfunctions are higher and more stable than for atmospheric excitationfunction. Keywords: ECCO Products Used: ECCO-KFSURL: http://syrte.obspm.fr/jsr/journees2003/pdf/s2_09_Kolaczek.pdf Other URLs:
Hill, C; Bugnion, V; Follows, Michael J.; Marshall, J (2004). Evaluating carbon sequestration efficiency in an ocean circulation model by adjoint sensitivity analysis, Journal of Geophysical Research-Oceans, C11 (109), 10.1029/2002jc001598. Title: Evaluating carbon paper sequestration efficiency in an ocean circulation model by adjoint sensitivity analysis Type: Journal article Publication: Journal of Geophysical Research-Oceans Author(s): Hill, C ; Bugnion, V ; Follows, Michael J. ; Marshall, J Year: 2004 Formatted Citation: Hill, C., V. Bugnion, M. J. Follows, and J. Marshall, 2004 : Evaluating carbon sequestration efficiency in an ocean circulation mannequin by adjoint sensitivity psychoanalysis. J. Geophys. Res. Ocean., 109 ( C11 ), doi:10.1029/2002jc001598 Abstract: [ 1 ] We demonstrate the application of the adjoint method acting to develop cubic maps of carbon paper sequestration efficiency and mean residence time in an ocean cosmopolitan circulation model. In contrast to perturbation sensitivity experiments, the adjoint approach provides a computationally effective way to characterize both worldly and spatial variations of sequestration efficiency and residence fourth dimension for a arrant ball-shaped model world. Sequestration efficiency ( the percentage of carbon injected at a continuous point source that remains in the ocean after an elapsed time ), for injections at the base of the main thermocline ( alike to 900 thousand ), is initially lowest in the North Atlantic basin ( except for regions of bass convection in the Labrador Sea ) relative to the North Pacific. For injection periods of the order of a century or more, however, the mannequin suggests that Pacific injection sites are broadly less efficient for a constant rate injection generator. The mean residence time ( defined as the average period that impetuously injected carbon paper from a particular charge reference remains within the ocean ) is besides evaluated and mapped. This meter besides suggests that Atlantic sequestration is more efficient in the hanker term. Our calculations draw out the double function of convective shuffle, both exposing shallow sequestration sources to the atmosphere and besides, in the subpolar Atlantic and Labrador Sea, feeding carbon from shallow injection sources into the deep circulation away from the atmosphere. Keywords: adjoint, atmospheric carbon dioxide, carbon sequestration, dioxide, heat-transport, north-atlantic, ocean circulation ECCO Products Used: adjoint URL: Other URLs:
Wunsch, Carl; Fukumori, Ichiro; Lee, Tong; Menemenlis, Dimitris; Behringer, David W.; Rienecker, Michele; Ponte, Rui M. (2004). U.S. GODAE: Sustained Global Ocean State Estimation for Scientific and Practical Application. Title: U.S. GODAE : Sustained Global Ocean State Estimation for Scientific and Practical Application Type: Report Publication: Author(s): Wunsch, Carl ; Fukumori, Ichiro ; Lee, Tong ; Menemenlis, Dimitris ; Behringer, David W. ; Rienecker, Michele ; Ponte, Rui M. Year: 2004 Formatted Citation: Wunsch, C., I. Fukumori, T. Lee, D. Menemenlis, D. W. Behringer, M. Rienecker, and R. M. Ponte, 2004 : U.S. GODAE : Sustained Global Ocean State Estimation for Scientific and Practical Application., Cambridge, MA, 8 pp. hypertext transfer protocol : //www.researchgate.net/publication/235174475_U_S_GODAE_Sustained_Global_Ocean_State_Estimation_for_Scientific_and_Practical_Application. Abstract: This consortium stick out aims to advance ocean state estimate as a hardheaded, quasi-operational tool, for studying the ocean circulation and its influence on social problems such as climate change, sea flat rise, and biological impacts. Observing the ocean is difficult owing to its disruptive nature and enormous range of energetic spatial scales. This project, building upon earlier experience, is establishing the means by which a quantitative description of the ball-shaped ocean will be routinely and endlessly available. The methodology employs state-of-the-art general circulation models, statistical estimate techniques, and the dispatch range of available oceanic observations including, peculiarly, global satellite data, angstrom well as in situ observations of all kinds. The campaign includes far demonstration of the hardheaded utility of ocean observing systems through their use in crucial scientific goals. Keywords: ECCO Products Used: ECCO-V2URL: https://www.researchgate.net/publication/235174475_U_S_GODAE_Sustained_Global_Ocean_State_Estimation_for_Scientific_and_Practical_Application Other URLs:
Howe, Bruce M.; Cornuelle, Bruce D.; Dushaw, Brian D.; Dzieciuch, Matthew A.; Menemenlis, Dimitris; Mercer, James A.; Munk, Walter H.; Spindel, Robert C.; Stammer, Detlef; Worcester, Peter F.; Zarnetske, M. R. (2004). Acoustic remote sensing of large-scale temperature variability in the North Pacific Ocean, OCEANS `04 MTS/IEEE TECHNO-OCEAN, 1504-1506. Title: Acoustic distant smell of large-scale temperature variability in the North Pacific Ocean Type: Conference Proceedings Publication: OCEANS `04 MTS/IEEE TECHNO-OCEAN Author(s): Howe, Bruce M. ; Cornuelle, Bruce D. ; Dushaw, Brian D. ; Dzieciuch, Matthew A. ; Menemenlis, Dimitris ; Mercer, James A. ; Munk, Walter H. ; Spindel, Robert C. ; Stammer, Detlef ; Worcester, Peter F. ; Zarnetske, M. R. Year: 2004 Formatted Citation: Howe, B. M. and Coauthors, 2004 : acoustic remote sensing of large-scale temperature unevenness in the North Pacific Ocean. OCEANS `04 MTS/IEEE TECHNO-OCEAN, 1504-1506 pp. Abstract: Large-scale, depth-averaged temperatures have been measured by long-range acoustic transmissions in the North Pacific Ocean for the past nine years. acoustic sources located off central California and union of Kauai transmitted to receivers distributed throughout the North Pacific from 1996 through 1999 during the Acoustic Thermometry of Ocean Climate ( ATOC ) visualize. The Kauai transmissions resumed in early 2002 and are now continuing as part of the North Pacific Acoustic Laboratory ( NPAL ) project ; a six-year clock series has been obtained so army for the liberation of rwanda. even at long meter and large spatial scales the ocean is highly variable star. The paths from Kauai to California show a minor cool tendency ( longer travel times ) until the present meter. A path to the northwesterly showed humble warm and a weak annual bicycle from 1999 until early 2003, when a impregnable annual cycle returned. In retrospect, these changes stemmed from the calefacient of the central Pacific that occurred in this interval, possibly associated with the Pacific Decadal Oscillation ( PDO ). Comparisons between measured travel times and those predicted using ocean models, constrained by satellite altimeter and other data, prove meaning similarities and differences. Comparison between upper-ocean Argo profiling float temperatures and the acoustically measure temperature along one way illustrates the military capability of the built-in measurements, with substantially lower uncertainty. The acoustic data ultimately need to be combined with sea-surface altitude Argo float data to determine the complementarity of the diverse data types. In particular, combining the acoustic and Argo data by inverse techniques will quantify the ability of the float data to resolve large-scale, upper-ocean heat contented and the ability of the acoustic data to resolve abysmal temperature changes. Keywords: ECCO Products Used: ECCO-KFS URL: Other URLs:
di Leonardo, Susan M.; Dickman, S. R. (2004). Isolation of atmospheric effects on rapid polar motion through Wiener filtering, Geophysical Journal International, 3 (159), 863-873, 10.1111/j.1365-246X.2004.02445.x. Title: Isolation of atmospheric effects on rapid arctic motion through Wiener filtering Type: Journal article Publication: Geophysical Journal International Author(s): di Leonardo, Susan M. ; Dickman, S. R. Year: 2004 Formatted Citation: di Leonardo, S. M., and S. R. Dickman, 2004 : isolation of atmospheric effects on rapid pivotal motion through Wiener filtering. Geophysical Journal International, 159 ( 3 ), 863-873, doi:10.1111/j.1365-246X.2004.02445.x Abstract: Keywords: Atmospheric excitation, Ocean tides, Ocean-atmosphere interactions, Rapid polar motion, Rotational variations, Wiener filtering ECCO Products Used: ECCO-KFS URL: Other URLs:
Nastula, J.; Gambis, D. (2004). Excitation of Polar Motion By Atmospheric and Oceanic, Journées 2004, Systèmes de référence spatio-temporels, Fundamental Astronomy: New concepts and models for high accuracy observations, 148-149. Title: Excitation of Polar Motion By Atmospheric and Oceanic Type: Conference Proceedings Publication: Journées 2004, Systèmes de référence spatio-temporels, fundamental Astronomy : New concepts and models for high accuracy observations Author(s): Nastula, J. ; Gambis, D. Year: 2004 Formatted Citation: Nastula, J., and D. Gambis, 2004 : excitation of Polar Motion By Atmospheric and Oceanic. Journées 2004, Systèmes de référence spatio-temporels, fundamental Astronomy : New concepts and models for high accuracy observations, N. Capitaine, Eds. Observatoire de Paris, Paris, 148-149 pp. hypertext transfer protocol : //www.researchgate.net/profile/Tim_Van_Hoolst/publication/237726688_THE_COUPLING_EQUATIONS_BETWEEN_THE_NUTATION_AND_THE_GEOMAGNETIC_FIELD_IN_GSH_EXPANSION/links/0f31752df85bf82ff5000000/THE-COUPLING-EQUATIONS-BETWEEN-THE-NUTATION-AND-THE-GEOMAGNETIC. Abstract: It is widely accepted that atmospheric and oceanic variabilities play a major character in the excitation of pivotal gesture at period longer than 10 days. however for shorter periods the effect is not clear. We have reanalysed the character of Atmospheric Angular Momentum ( AAM ) and Oceanic Angular Momentum ( OAM ) variabilities on the excitement of high gear frequency arctic motion variations taking advantage of a recent Oceanic Angular Momentum ( OAM ) serial derived by Ponte and Ali. We show that the correlation significant at periods between 2 and 10 days. Keywords: ECCO Products Used: ECCO-KFSURL: https://www.researchgate.net/profile/Tim_Van_Hoolst/publication/237726688_THE_COUPLING_EQUATIONS_BETWEEN_THE_NUTATION_AND_THE_GEOMAGNETIC_FIELD_IN_GSH_EXPANSION/links/0f31752df85bf82ff5000000/THE-COUPLING-EQUATIONS-BETWEEN-THE-NUTATION-AND-THE-GEOMAGNETIC Other URLs:
Fukumori, I; Lee, T; Cheng, B; Menemenlis, Dimitris (2004). The origin, pathway, and destination of Nino-3 water estimated by a simulated passive tracer and its adjoint, Journal of Physical Oceanography, 3 (34), 582-604, 10.1175/2515.1. Title: The origin, pathway, and destination of Nino-3 water estimated by a simulate passive tracer and its adjoint Type: Journal article Publication: Journal of Physical Oceanography Author(s): Fukumori, I ; Lee, T ; Cheng, B ; Menemenlis, Dimitris Year: 2004 Formatted Citation: Fukumori, I., T. Lee, B. Cheng, and D. Menemenlis, 2004 : The beginning, pathway, and destination of Nino-3 water estimated by a simulate passive tracer and its adjoint. Journal of Physical Oceanography, 34 ( 3 ), 582-604, doi:10.1175/2515.1 Abstract: The nature of subtropical – tropical urine mass exchange in the Pacific Ocean is investigated, focusing on the origin, pathway, and address of water occupying the coat layer of the easterly equatorial Pacific Ocean ( Nino-3 region ; 5degreesS – 5degreesN, 150degrees – 90degreesW ). Simulated passive voice tracers and their adjoint are employed to explicitly follow the circulation of particular water masses accounting for advective and diffusing effects and their time variabilities. The development of the forward passive tracer and adjoint passive voice tracer can be identified as describing where the tracer-tagged water mass goes and from where it comes, respectively. Over 10 years on median, water mass of the Nino-3 region can be traced back to eastern subtropical thermocline waters of the Northern ( 27 % ) and southern Hemispheres ( 39 % ). The Nino-3 water subsequently returns to these subtropical latitudes in the amphetamine ocean. In contrast to the hypothesized “ subtropical cell, ” however, this circulation is an clear circuit with water returning to the western regions of the two hemispheres ( subtropical gyres ) and to the indian Ocean, alternatively of returning to its origins. The representative transit fourth dimension scale from the subtropics to the Tropics is 10 15 yr. Temporal unevenness causes the tropical circulation inferred from a time-mean state to differ importantly from the average circulation. In detail, stirring ascribable to nonseasonal, intra-annual unevenness importantly enhances the ecstasy magnitude of the alleged inner pathways relative to that of the devious low-latitude western boundary pathways. such short-circuit in the subtropical – tropical exchange may help better to explain tracer distributions, such as the ascertained midbasin tritium maximum in the equatorial Pacific Ocean. Significant differences in circulation pathways are besides identified that are associated with El Nino and La Nina events. The potency of the subtropical – tropical water multitude exchange is estimated to have weakened during the 1990s. Keywords: circulation model, el-nino, environmental prediction, equatorial pacific-ocean, rally, home centers, north pacific, thermocline water, tritium utmost, tropical pacific ECCO Products Used: ECCO-KFS URL: Other URLs:
Biswas, Rupak (2004). Scientific Applications of High-End Computing I. Title: Scientific Applications of High-End Computing I Type: Report Publication: Author(s): Biswas, Rupak Year: 2004 Formatted Citation: Biswas, R., 2004 : Scientific Applications of High-End Computing I., Baltimore, MD, 21-32 pp. Abstract: Keywords: ECCO Products Used: ECCO2URL: http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.594.5387&rep=rep1&type=pdf Other URLs: hypertext transfer protocol : //citeseerx.ist.psu.edu/viewdoc/download ? doi=10.1.1.689.9692 & rep=rep1 & type=pdf # page=41
Kim, S B; Lee, T; Fukumori, I (2004). The 1997-1999 abrupt change of the upper ocean temperature in the north central Pacific, Geophysical Research Letters, 22 (31), 10.1029/2004gl021142. Title: The 1997-1999 abrupt change of the upper ocean temperature in the north central Pacific Type: Journal article Publication: Geophysical Research Letters Author(s): Kim, S B ; Lee, T ; Fukumori, I Year: 2004 Formatted Citation: Kim, S. B., T. Lee, and I. Fukumori, 2004 : The 1997-1999 abrupt switch of the upper berth ocean temperature in the north central Pacific. Geophys. Res. Lett., 31 ( 22 ), doi:10.1029/2004gl021142 Abstract: The abrupt warming of the north central Pacific Ocean from 1997 to 1999 is studied using an ocean data assimilation product. During this period, the average mixed-layer temperature in the region of 170 – 210 degreesE, 25 – 40 degreesN rises by 1.8 K. The major contributors to the warm are open heat liquefy ( 1.3 K ), geostrophic advection ( 0.7 K ), and entrainment ( 0.7 K ). For the geostrophic advection, the contributions by the zonal, meridional, and vertical components are 0.4, – 0.1 and 0.3 K, respectively. Mixing and meridional Ekman advection have cooling effect. The significance of the geostrophic advection indicates the importance of ocean dynamics in controlling the abrupt thaw tendency during the 1997 – 99 period and the insufficiency of a slabmixed-layer model in simulating such warm tendency. Keywords: america, anomalies, decadal climate unevenness, dynamics, ecosystems, flux, heat-budget, model ECCO Products Used: ECCO-KFS URL: Other URLs:
Stammer, D; Theiss, J (2004). Velocity Statistics Inferred from the TOPEX/Poseidon-Jason-1 Tandem Mission Data, Marine Geodesy, 3-4 (27), 551-575, 10.1080/01490410490902052. Title: Velocity Statistics Inferred from the TOPEX/Poseidon-Jason-1 Tandem Mission Data Type: Journal article Publication: Marine Geodesy Author(s): Stammer, D ; Theiss, J Year: 2004 Formatted Citation: Stammer, D., and J. Theiss, 2004 : speed Statistics Inferred from the TOPEX/Poseidon-Jason-1 Tandem Mission Data. Marine Geodesy, 27 ( 3-4 ), 551-575, doi:10.1080/01490410490902052 Abstract: Using a parallel-track approach to estimate geostrophic open velocities, an estimate of the statistics of ocean geostrophic surface currents and momentum stresses is provided on a 10 kilometer along-track resolution from the first gear 49 reprise cycles ( 16 months ) of the Jason-TOPEX/Poseidon bicycle-built-for-two altimetric ocean surface stature ( SSH ) data. Results are compared with estimates obtained in a traditional way from along-track SSH datum at crossing over points and with in situ, Acoustic Doppler Current Profiler ( ADCP ) measurements obtained on circuit board the VOS Oleander along a nominal way connecting Bermuda with the U.S. mainland. Agreements with the Oleander data are reasonable when coincident ( in space and time ) sampling is available. however, amplitudes of parallel-track geostrophic speed variances are about 25 % lower as compared to Oleander measurements which represent geostrophic and ageostrophic flow components. Estimates of speed variances show clear signs of an anisotropic eddy field in the vicinity of all major current systems. At the same meter estimates of Reynolds stresses and eddy momentum fluxes show a convergence of eddy momentum in all those regions, suggesting a storm of the beggarly stream by the eddy field there. Keywords: altimetry, mesoscale eddies, ocean circulation ECCO Products Used: URL: Other URLs:
Losch, Martin; Adcroft, Alistair J.; Campin, Jean-Michel (2004). How sensitive are coarse general circulation models to fundamental approximations in the equations of motion?, Journal of Physical Oceanography, 1 (34), 306-319, 10.1175/1520-0485(2004)034<0306:hsacgc>2.0.co;2. Title: How sensible are coarse general circulation models to fundamental approximations in the equations of motion ? Type: Journal article Publication: Journal of Physical Oceanography Author(s): Losch, Martin ; Adcroft, Alistair J. ; Campin, Jean-Michel Year: 2004 Formatted Citation: Losch, M., A. J. Adcroft, and J. Campin, 2004 : How sensitive are coarse general circulation models to fundamental approximations in the equations of movement ? Journal of Physical Oceanography, 34 ( 1 ), 306-319, doi:10.1175/1520-0485 ( 2004 ) 034 < 0306 : hsacgc > 2.0.co ; 2 Abstract: The advent of high-precision graveness missions presents the opportunity to accurately measure variations in the distribution of mass in the ocean. Such a datum source will prove valuable in state estimate and constraining cosmopolitan circulation models ( GCMs ) in general. however, ceremonious GCMs make the Boussinesq approximations, a consequence of which is that mass is not conserved. By use of the height-pressure coordinate isomorphism implemented in the Massachusetts Institute of Technology general circulation model ( MITGCM ), the affect of non-Boussinesq effects can be evaluated. Although implementing a non-Boussinesq model in atmospheric pressure coordinates is relatively aboveboard, making a direct comparison between acme and atmospheric pressure align ( i.e., Boussinesq and non-Boussinesq ) models is not dim-witted. however, a careful comparison of the altitude organize and the blackmail coordinate solutions ensures that merely non-Boussinesq effects can be responsible for the observe differences. As a yardstick, these differences are besides compared with those between the Boussinesq hydrostatic and models in which the hydrostatic estimate has been relaxed, another approximation normally made in GCMs. Model errors ( differences ) caused by the Boussinesq and hydrostatic approximations are demonstrated to be of comparable order of magnitude. Differences induced by humble changes in subgrid-scale parameterizations are at least as bombastic. consequently, non-Boussinesq and nonhydrostatic effects are most probable negligible with deference to other model uncertainties. however, because there is no extra cost incurred in using a press align model, it is argued that non-Boussinesq model is preferable plainly for tidiness. It is besides concluded that tied coarse-resolution GCMs can be sensitive to minor perturbations in the dynamic equations. Keywords: accurate, boussinesq approximation, conservation, fluid, free-surface, ocean models, coerce, representation, low-lying, book ECCO Products Used: URL: Other URLs:
Adcroft, Alistair J.; Campin, Jean-Michel; Hill, C; Marshall, J (2004). Implementation of an atmosphere-ocean general circulation model on the expanded spherical cube, Monthly Weather Review, 12 (132), 2845-2863, 10.1175/mwr2823.1. Title: Implementation of an atmosphere-ocean general circulation model on the expanded ball-shaped cube Type: Journal article Publication: Monthly Weather Review Author(s): Adcroft, Alistair J. ; Campin, Jean-Michel ; Hill, C ; Marshall, J Year: 2004 Formatted Citation: Adcroft, A. J., J. Campin, C. Hill, and J. Marshall, 2004 : implementation of an atmosphere-ocean general circulation model on the expanded spherical cube. Monthly Weather Review, 132 ( 12 ), 2845-2863, doi:10.1175/mwr2823.1 Abstract: A hydrodynamical kernel that drives both an atmospheric and oceanic general circulation model is implemented in general orthogonal curvilineal coordinates using the finite-volume method acting on the sphere. The finite-volume method acting naturally describes arbitrary grids, and function of the vector-invariant form of the momentum equations simplifies the generalization to arbitrary coordinates. Grids based on the expanded spherical cube of Rancic et al., which contain eight singular points, are used. At these singularities the grid is nonorthogonal. The combine use of vector-invariant equations and the finite-volume method is shown to avoid corruption at these singular points. The model is tested using experiments proposed by Williamson et alabama. and Held and Saurez. The atmospheric solutions are examined seeking testify of the underlying grid in solutions and eddy statistics. A global ocean simulation is besides conducted using the lapp code. The solutions prove to be accurate and barren of artifacts arising from the cubic power system. Keywords: advection, approximations, dynamics, geometry, grids, schemes, shallow-water equations ECCO Products Used: URL: Other URLs:
Chen, J. L.; Wilson, C. R. (2003). Low degree gravitational changes from earth rotation and geophysical models, Geophysical Research Letters, 24 (30), 10.1029/2003GL018688. Title: Low degree gravitational changes from earth rotation and geophysical models Type: Journal article Publication: Geophysical Research Letters Author(s): Chen, J. L. ; Wilson, C. R. Year: 2003 Formatted Citation: Chen, J. L., and C. R. Wilson, 2003 : first gear degree gravitational changes from earth rotation and geophysical models. Geophys. Res. Lett., 30 ( 24 ), doi:10.1029/2003GL018688 Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: http://doi.wiley.com/10.1029/2003GL018688 Other URLs:
Li, X W; Wunsch, C (2003). Constraining the North Atlantic circulation between 4.5 degrees S and 39.5 degrees N with transient tracer observations, Journal of Geophysical Research-Oceans, C10 (108), 10.1029/2002jc001765. Title: Constraining the North Atlantic circulation between 4.5 degrees S and 39.5 degrees N with transient tracer observations Type: Journal article Publication: Journal of Geophysical Research-Oceans Author(s): Li, X W ; Wunsch, C Year: 2003 Formatted Citation: Li, X. W., and C. Wunsch, 2003 : Constraining the North Atlantic circulation between 4.5 degrees S and 39.5 degrees N with transeunt tracer observations. J. Geophys. Res. Ocean., 108 ( C10 ), doi:10.1029/2002jc001765 Abstract: A 1degrees horizontal resolution North Atlantic general circulation model ( GCM ) in the latitude band 4.5degreesS to 39.5degreesN is compared to, and then combined with, chlorofluorocarbon and tritium transient tracer data. The method acting of Lagrange multipliers ( adjoint ) is used. Tracer distribution within the exemplary ocean interior is chiefly sensitive to the blend through the open northerly limit. This flux density is determined by the estimate method and is found to deviate from the initial appraisal importantly for all tracers. An try to carry the model domain to 78.5degreesN showed the GCM insufficiency, believed to be primarily a problem of spatial resolving power, to compute the convective injection of tracer into the deep ocean. Any such errors persist throughout the tracer integration and corrupt all far tracer concentrations. In general, and reproducible with earlier much simple computations, uncertainties in come on and northern limit conditions dominate the calculate tracer concentrations. The final examination results here are improved estimates of the cubic clock time histories of the tritium and CFCs and their limit conditions over the model knowledge domain, with very little information available to constrain the GCM itself in the latitude band. Keywords: adjoint model, old age, antarctic bottom water, chlorofluorocarbon, fresh-water transports, heat, model, observations, ocean, rates, sea, state estimate, transient tracer, tritium ECCO Products Used: URL: Other URLs:
Stammer, Detlef (2003). Routine ECCO ocean syntheses available through the internet, CLIVAR Exchanges, 1 (8), 14. Title: Routine ECCO ocean syntheses available through the internet Type: Magazine article Publication: CLIVAR Exchanges Author(s): Stammer, Detlef Year: 2003 Formatted Citation: Stammer, D., 2003 : everyday ECCO ocean syntheses available through the internet. CLIVAR Exchanges, 8 ( 1 ), 14 pp. hypertext transfer protocol : //eprints.uni-kiel.de/7837/1/Exchanges26.pdf # page=14. Abstract: Keywords: ECCO Products Used: ECCO-KFS ; ECCO-V0URL: http://eprints.uni-kiel.de/7837/1/Exchanges26.pdf#page=14 Other URLs:
Lee, Tong; Fukumori, Ichiro (2003). Interannual-to-Decadal Variations of Tropical-Subtropical Exchange in the Pacific Ocean: Boundary versus Interior Pycnocline Transports, Journal of Climate, 24 (16), 4022-4042, 10.1175/1520-0442(2003)016<4022:IVOTEI>2.0.CO;2. Title: Interannual-to-Decadal Variations of Tropical-Subtropical Exchange in the Pacific Ocean : Boundary versus Interior Pycnocline Transports Type: Journal article Publication: Journal of Climate Author(s): Lee, Tong ; Fukumori, Ichiro Year: 2003 Formatted Citation: Lee, T., and I. Fukumori, 2003 : Interannual-to-Decadal Variations of Tropical-Subtropical Exchange in the Pacific Ocean : Boundary versus Interior Pycnocline Transports. J. Clim., 16 ( 24 ), 4022-4042, doi:10.1175/1520-0442 ( 2003 ) 016 < 4022 : IVOTEI > 2.0.CO ; 2 Abstract: Interannual-to-decadal variations of tropical – subtropical mass exchange in the Pacific Ocean are investigated using a near-global ocean general circulation mannequin along with satellite observations of sea tied and fart and a data assimilation product. The analysis focuses on the unevenness of pycnocline transports through the western boundary and inside near 10degreesN and 10degreesS. In contrast to time-mean change, where boundary and interior pycnocline transports are both equatorward, the variations of limit and inside pycnocline transports are found to be by and large anticorrelated to each early. furthermore, the variation of the boundary pycnocline transport is smaller than that of the interior, again different from time-mean exchange, where the limit ecstasy at 10degreesN is substantially larger than that through the home. Interannual variations of the limit and interior transports are coherent with near-surface geostrophic flow inferred from sea tied data. Interior pycnocline flow into the Tropics is weaker in the 1990s than that in the 1980s, in agreement with holocene observations. however, approximately half of it is compensated by an opposite change in boundary flow at 10degreesN. The results indicate that the inside nerve pathway is more important to interannual and decadal unevenness of tropical – subtropical switch over than the boundary pathway, despite a much larger time-mean enchant of the western limit current at 10degreesN. To a big extent, the counteract leaning of the boundary and interior flow and the larger mutant of the latter can be explained by the unite effect of variability in off-equatorial wind stress curl in the western Pacific and near-equatorial zonal weave stress. The former changes the strength of horizontal circulation and results in a variation of boundary pycnocline flow that is diametric in direction but comparable in order of magnitude to that of the inner pycnocline hang. The latter chiefly affects the persuasiveness of the shallow meridional overturning circulation with net pycnocline stream ( largely in the interior ) opposing the airfoil Ekman stream. The covariability of these two forcings leads to an enhancement of inner transport. The relative variability of limit and home pycnocline stream is insensitive to whether the Indonesian Throughflow is portray or not. Keywords: circulation, el-nino, equatorial pacific, heat-content variability, indonesian throughflow, mindanao current, model, north pacific, thermocline, urine exchange ECCO Products Used: ECCO-KFSURL: http://journals.ametsoc.org/doi/abs/10.1175/1520-0442%282003%29016%3C4022%3AIVOTEI%3E2.0.CO%3B2 Other URLs:
Stammer, D; Wunsch, C; Giering, R; Eckert, C; Heimbach, P; Marotzke, J; Adcroft, Alistair J.; Hill, C N; Marshall, J (2003). Volume, heat, and freshwater transports of the global ocean circulation 1993-2000, estimated from a general circulation model constrained by World Ocean Circulation Experiment (WOCE) data, Journal of Geophysical Research-Oceans, C1 (108), 10.1029/2001jc001115. Title: volume, hotness, and freshwater transports of the ball-shaped ocean circulation 1993-2000, estimated from a general circulation model constrained by World Ocean Circulation Experiment ( WOCE ) data Type: Journal article Publication: Journal of Geophysical Research-Oceans Author(s): Stammer, D ; Wunsch, C ; Giering, R ; Eckert, C ; Heimbach, P ; Marotzke, J ; Adcroft, Alistair J. ; Hill, C N ; Marshall, J Year: 2003 Formatted Citation: Stammer, D. and Coauthors, 2003 : volume, heating system, and freshwater transports of the global ocean circulation 1993-2000, estimated from a general circulation model constrained by World Ocean Circulation Experiment ( WOCE ) data. J. Geophys. Res. Ocean., 108 ( C1 ), doi:10.1029/2001jc001115 Abstract: An analysis of ocean book, heat, and freshwater transports from a amply constrained general circulation model ( GCM ) is described. output from a datum synthesis, or express estimate, method acting is used by which the model was forced to large-scale, time-varying global ocean data sets over 1993 through 2000. Time-mean horizontal transports, estimated from this amply time-dependent circulation, have converged with independent time-independent estimates from box inversions over most parts of the worldly concern ocean but particularly in the southern hemisphere. however, heat transportation estimates differ well in the North Atlantic where our estimates result in only 1/2 previous results. The models drift over the estimate menstruation is consistent with observations from TOPEX/Poseidon in their spatial form, but smaller in their amplitudes by about a factor of 2. Associated temperature and salt changes are complex, and both point toward air-sea interaction over water mass formation regions as the primary source for changes in the thick ocean. The calculate bastardly circulation around Australia involves a net book transport of 11 Sv through the Indonesian Throughflow and the Mozambique Channel. In accession, we show that this stream government exists on all timescales above 1 calendar month, rendering the variability in the South Pacific strongly coupled to the indian Ocean. furthermore, the dynamically consistent variations in the model show temporal unevenness of oceanic heat transports, heat storehouse, and atmospheric exchanges that are complex and with a potent addiction upon location, depth, and timescale. Our results demonstrate the bang-up likely of an ocean state estimate system to provide a dynamic description of the time-dependent ascertained heat transmit and heat content changes and their relative to air-sea interactions. Keywords: antarctic circumpolar current, data assimilation, data assimilation analysis, rally, fluxes, hotness transport, ocean circulation, ocean reanalysis, passage, south-atlantic, coat fluxes, system, variability, water ECCO Products Used: ECCO-V0 URL: Other URLs:
Losch, Martin; Wunsch, C (2003). Bottom topography as a control variable in an ocean model, Journal of Atmospheric and Oceanic Technology, 11 (20), 1685-1696, 10.1175/1520-0426(2003)020<1685:btaacv>2.0.co;2. Title: Bottom topography as a command variable in an ocean model Type: Journal article Publication: Journal of Atmospheric and Oceanic Technology Author(s): Losch, Martin ; Wunsch, C Year: 2003 Formatted Citation: Losch, M., and C. Wunsch, 2003 : Bottom topography as a control variable in an ocean model. Journal of Atmospheric and Oceanic Technology, 20 ( 11 ), 1685-1696, doi:10.1175/1520-0426 ( 2003 ) 020 < 1685 : btaacv > 2.0.co ; 2 Abstract: The hypothesis of using topography in a state estimate context as a control parameter is explored in a linear barotropic shallow water model. Along with its adjoint, the model is used to systematically assess the influence of the depth field on the modeled circulation in a steady country. sensitivity of the run field to the topography is greater in a partially blocked zonal groove than in a subtropical coil. conjectural surface elevations are used to represent the types of data actually available. In neither case can all the details of the topography be recovered, showing that the relationship between topography and elevation does not have a unique inverse, and that many details of the topography are irrelevant to the detail physics under retainer. Keywords: internet explorer goce mission, fluxes, general-circulation, gravity-field, shock, parameters, bulk ECCO Products Used: URL: Other URLs:
Gross, R S; Fukumori, I; Menemenlis, Dimitris (2003). Atmospheric and oceanic excitation of the Earth’s wobbles during 1980-2000, Journal of Geophysical Research-Solid Earth, B8 (108), 10.1029/2002jb002143. Title: Atmospheric and oceanic excitement of the Earth ’ s wobbles during 1980-2000 Type: Journal article Publication: Journal of Geophysical Research-Solid Earth Author(s): Gross, R S ; Fukumori, I ; Menemenlis, Dimitris Year: 2003 Formatted Citation: Gross, R. S., I. Fukumori, and D. Menemenlis, 2003 : Atmospheric and oceanic excitement of the Earth ‘s wobbles during 1980-2000. Journal of Geophysical Research-Solid Earth, 108 ( B8 ), doi:10.1029/2002jb002143 Abstract: Because of the action of assorted geophysical excitement mechanisms, the earth does not rotate about its figure axis, so it wobbles as it rotates. here, the effectiveness of atmospheric and oceanic processes in exciting the Earth ‘s wobbles during 1980-2000 is evaluated using estimates of atmospheric angular momentum from the National Centers for Environmental Prediction/National Center for Atmospheric Research ( NCEP/NCAR ) reanalysis project and estimates of oceanic angular momentum from the Estimating the Circulation and Climate of the Ocean ( ECCO ) consortium ‘s simulation of the general circulation of the oceans. On intraseasonal timescales, atmospheric surface press changes are found to be the one most effective procedure exciting the Earth ‘s wobbles, explaining about twice american samoa much of the observe variance as make either atmospheric scent or ocean bottom pressure changes and about 4 times deoxyadenosine monophosphate much of the observe variability as make oceanic currents. however, on interannual timescales, ocean bottom atmospheric pressure changes are found to be the single most effective work exciting the Earth ‘s wobbles, explaining more than 5 times arsenic much of the observe discrepancy as serve atmospheric wind and pressure changes combined, and more than twice as much of the note variance as bash oceanic currents. Within the Chandler ring it is found that during 1980-2000 atmospheric and oceanic processes have adequate ability to excite the Chandler wobble and are significantly coherent with it. The individual most authoritative mechanism exciting the Chandler careen is found to be ocean bottom pressure variations. Atmospheric and oceanic processes do not appear to have enough might to excite the Earth ‘s wobbles to their observe levels on pentadal and longer timescales, although series longer than the 21-year long series used here need to be studied in ordering to obtain greater statistical significance of this result. Keywords: angular-momentum, atmospheric angular momentum, base-line interferometry, chandler careen, chandler-wobble, earth rotation, gravitational-field, model, oceanic angular momentum, orientation course, polar apparent motion, arctic motion excitement, rotation, low-lying, light periodic variations ECCO Products Used: ECCO-KFS URL: Other URLs:
Fieguth, P W; Menemenlis, Dimitris; Fukumori, I (2003). Mapping and pseudoinverse algorithms for ocean data assimilation, Ieee Transactions on Geoscience and Remote Sensing, 1 (41), 43-51, 10.1109/Tgrs.2002.808058. Title: Mapping and pseudoinverse algorithm for ocean data assimilation Type: Journal article Publication: Ieee Transactions on Geoscience and Remote Sensing Author(s): Fieguth, P W ; Menemenlis, Dimitris ; Fukumori, I Year: 2003 Formatted Citation: Fieguth, P. W., D. Menemenlis, and I. Fukumori, 2003 : function and pseudoinverse algorithm for ocean data assimilation. Ieee Transactions on Geoscience and Remote Sensing, 41 ( 1 ), 43-51, doi:10.1109/Tgrs.2002.808058 Abstract: Among existing ocean data assimilation methodologies, reduced-state Kalman filters are a widely studied compromise between resolution, optimality, error specification, and computational feasibility. In such reduced-state filters, the measurement update takes station on a coarse power system than that of the general circulation model ( GCM ) ; therefore, these filters require mapping operators from the GCM grid to the reduced state and frailty versa. The general requirements are that the state-reduction and interjection operators be pseudoinverses of each other, that the coarse department of state define a shut dynamic system, that the map operations be insensitive to noise, and that they be allow for regions with irregular coastlines and bathymetry. In this paper, we describe three effective algorithm for computing the pseudoinverse : a firm Fourier transform algorithm that serves for exemplification purposes, an accurate implicit method acting that is recommended for most applications, and an efficient iterative algorithm that can be used for the largest problems. The map operation of 11 interjection kernels is evaluated. surprisingly, common kernels such as bilinear, exponential, gaussian, and sine perform only moderately well. We recommend rather three kernels, smooth, thin-plate, and optimum interjection, which have superscript properties. This study removes the computational bottleneck of map and pseudoinverse algorithm and makes potential the application of reduced-state filters to ball-shaped problems at state-of-the-art resolutions. Keywords: altimeter data, circulation model, climatological models, data assimilation, extended kalman percolate, interscale transforms, pseudoinverse methods, remote sensing, low-lying, sparse pseudoinverses, tropical pacific-ocean ECCO Products Used: ECCO-KFS URL: Other URLs:
Hu, X.-G.; Chen, J.-L.; Huang, C.; Tapley, B.D.; Wilson, C.R. (2003). Non-tidal oceanic contribution to the variation of the earth oblateness, Acta Geophysica Sinica, 3 (47), 484-489. Title: Non-tidal oceanic contribution to the variation of the earth oblateness Type: Journal article Publication: Acta Geophysica Sinica Author(s): Hu, X.-G. ; Chen, J.-L. ; Huang, C. ; Tapley, B.D. ; Wilson, C.R. Year: 2003 Formatted Citation: Hu, X., J. Chen, C. Huang, B. Tapley, and C. Wilson, 2003 : Non-tidal oceanic contribution to the variation of the earth oblateness. Acta Geophysica Sinica, 47 ( 3 ), 484-489 Abstract: We investigate two ocean models for exemplary establishment and the altimetry data from TOPEX/Poseidon ( T/P ) and conclude that the mass transportation within the oceans, specifically within the Pacific Ocean, put up to at least part of the variation of the Earth oblateness ( J 2 ) since 1997/1998. The abnormal J 2 variation since 1997/1998 may be from the variations of the steric effects, which are the consequence of thermal and saline variation, and might not be easily discerned from the ocean airfoil height variations observed with the T/P data. Keywords: Gravity exchange, Mass transfer, Oceanic circulation, Satellite laser ranging ECCO Products Used: ECCO-KFS URL: Other URLs:
Stammer, Detlef (2003). Status and goals of global data syntheses, CLIVAR Exchanges, 1 (8), 11-13. Title: Status and goals of ball-shaped datum syntheses Type: Magazine article Publication: CLIVAR Exchanges Author(s): Stammer, Detlef Year: 2003 Formatted Citation: Stammer, D., 2003 : status and goals of ball-shaped data syntheses. CLIVAR Exchanges, 8 ( 1 ), 11-13 pp. hypertext transfer protocol : //eprints.uni-kiel.de/7837/1/Exchanges26.pdf # page=14. Abstract: Keywords: ECCO Products Used: ECCO-V0URL: http://eprints.uni-kiel.de/7837/1/Exchanges26.pdf#page=14 Other URLs:
Chao, B F; Au, A Y; Boy, J P; Cox, C M (2003). Time-variable gravity signal of an anomalous redistribution of water mass in the extratropic Pacific during 1998-2002, Geochemistry Geophysics Geosystems (4), 10.1029/2003gc000589. Title: Time-variable gravity bespeak of an anomalous redistribution of water mass in the extratropic Pacific during 1998-2002 Type: Journal article Publication: Geochemistry Geophysics Geosystems Author(s): Chao, B F ; Au, A Y ; Boy, J P ; Cox, C M Year: 2003 Formatted Citation: Chao, B. F., A. Y. Au, J. P. Boy, and C. M. Cox, 2003 : Time-variable gravity signal of an anomalous redistribution of water system bulk in the extratropic Pacific during 1998-2002. Geochemistry Geophysics Geosystems, 4, doi:10.1029/2003gc000589 Abstract: Cox and Chao [ 2002 ] reported the detection of a boastfully anomaly in the meter series of Earth ‘s dynamic oblateness J ( 2 ), the lowest-degree gravity spatial harmonic, in the form of a positive jump since 1998 overshadowing the decreasing layman vogue in J ( 2 ) caused chiefly by the postglacial rally ( PGR ). here we report that holocene data show that J ( 2 ) has been quickly returning toward “ normal ” ( with PGR considered ) since early 2001. In search of the geophysical and climatic causes for this “ 1998-2002 J ( 2 ) anomaly, ” we report an oceanographic consequence that took topographic point in the extratropic north and south Pacific basins that was found to match unusually well with the fourth dimension development of the anomaly. We examine the leading ( nonseasonal, extratropic Pacific ) Empirical Orthogonal Function/Principal Component modes in the sea-surface acme ( SSH ) data from TOPEX/Poseidon, ocean come on temperature ( SST ) datum from the National Center for Environmental Predictions, and output fields of the Estimating the circulation and the Climate of the Ocean ( ECCO ) ocean general circulation mannequin ( OGCM ), including ocean bottom pressure ( OBP ) and temperature and salt profiles. The phenomenon appears to be part of the Pacific Decadal Oscillation, and temporal correlations are made. however, quantitatively, the OBP field of the ECCO model predicts a J ( 2 ) anomaly that is smaller in order of magnitude than the observed by a factor of about 3. We discuss assorted possibilities for reconciling this discrepancy in terms of inadequacies of present OGCMs and considering early geophysical contributions ; a dispatch resolution of the J ( 2 ) mystery awaits far studies. Keywords: J ( 2 ) anomaly, circulation, climate, distribution, earth rotation, el-nino, extratropic Pacific, field, geodesy and gravity : ocean/earth/atmosphere bury, interdecadal unevenness, lageos, model, ocean, oceanography : general : climate and interannual v, cycle, time-variable gravity, water mass ECCO Products Used: ECCO-KFS URL: Other URLs:
Howe, B.M.; Dushaw, Brian D.; Mercer, J.A.; Worcester, P.F.; Colosi, J.A.; Cornuelle, B.C.; Dzieciuch, M.A.; Spindel, R.C. (2003). Acoustic thermometry time series in the North Pacific, 2003 International Conference Physics and Control. Proceedings (Cat. No.03EX708), 111-114, 10.1109/SSC.2003.1224123. Title: Acoustic thermometry time series in the North Pacific Type: Conference Proceedings Publication: 2003 International Conference Physics and Control. Proceedings ( Cat. No.03EX708 ) Author(s): Howe, B.M. ; Dushaw, Brian D. ; Mercer, J.A. ; Worcester, P.F. ; Colosi, J.A. ; Cornuelle, B.C. ; Dzieciuch, M.A. ; Spindel, R.C. Year: 2003 Formatted Citation: Howe, B., B. D. Dushaw, J. Mercer, P. Worcester, J. Colosi, B. Cornuelle, M. Dzieciuch, and R. Spindel, 2003 : acoustic thermometry time series in the North Pacific. 2003 International Conference Physics and Control. Proceedings ( Cat. No.03EX708 ) IEEE, 111-114 pp. doi:10.1109/SSC.2003.1224123. Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: http://ieeexplore.ieee.org/document/1224123/ Other URLs:
Dushaw, Brian D. (2003). Acoustic thermometry in the North Pacific, CLIVAR Exchanges, 1 (8), 15-22. Title: Acoustic thermometry in the North Pacific Type: Magazine article Publication: CLIVAR Exchanges Author(s): Dushaw, Brian D. Year: 2003 Formatted Citation: Dushaw, B. D., 2003 : acoustic thermometry in the North Pacific. CLIVAR Exchanges, 8 ( 1 ), 15-22 pp. hypertext transfer protocol : //eprints.uni-kiel.de/7837/1/Exchanges26.pdf # page=14. Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: http://eprints.uni-kiel.de/7837/1/Exchanges26.pdf#page=14 Other URLs:
Wunsch, C.; Stammer, D. (2003). Global ocean data assimilation and geoid measurements, Earth Gravity Field from Space – From Sensors to Earth Sciences (17), 147-162, 10.1007/978-94-017-1333-7_13. Title: Global ocean data assimilation and geoid measurements Type: Book section Publication: Earth Gravity Field from Space – From Sensors to Earth Sciences Author(s): Wunsch, C. ; Stammer, D. Year: 2003 Formatted Citation: Wunsch, C., and D. Stammer, 2003 : global ocean data acculturation and geoid measurements. Earth Gravity Field from Space – From Sensors to Earth Sciences, 17, 147-162, doi:10.1007/978-94-017-1333-7_13 Abstract: Parts of geodesy and physical oceanography discharge about to mature into a single model problem involving the coincident appraisal of the marine geoid and the general circulation. Both fields will benefit. To this end, we present an ocean state estimate ( data acculturation ) framework which is designed to obtain a dynamically consistent picture of the changing ocean circulation by combining ball-shaped ocean data sets of arbitrary type with a general circulation model ( GCM ), The impact of geoid measurements on such estimates of the ocean circulation are numerous. For the base circulation, a precise geoid describes the reference frame for dynamic signals in altimetric ocean airfoil height observations. For the time-varying ocean signal, changing geoid information might be a valuable newfangled information about correcting the changing hang field on fourth dimension scales from a few month to a year, but the quantitative utility of such information has not yet been demonstrated. For a reproducible calculate, some cognition of the anterior error covariances of all data fields is required. The concluding resultant role must be consistent with anterior mistake estimates for the data. State estimate is therefore one of the few quantitative consistency checks for new geoid measurements anticipated from forthcoming space missions. Practical quantitative methods will yield a best possible estimate of the dynamic sea surface which, when combined with satellite altimetric surfaces, will produce a best-estimate marine geoid. The expect accuracy and preciseness of such estimates raises some novel model error issues which have not conventionally been of concern ( the Boussinesq approximation, selfattraction and load ). Model skill at very high frequencies is a major concern because of the motivation to de-alias the data obtained by the inevitable oceanic temporal undcrsampling dictated by realistic satellite orbit configurations. Keywords: Geoid Height, Gravity Field, Ocean Circulation, Polar Motion, Satellite Altimetry ECCO Products Used: ECCO-V1URL: http://link.springer.com/10.1007/978-94-017-1333-7_13 Other URLs:
Legg, S; Adcroft, Alistair J. (2003). Internal wave breaking at concave and convex continental slopes, Journal of Physical Oceanography, 11 (33), 2224-2246, 10.1175/1520-0485(2003)033<2224:iwbaca>2.0.co;2. Title: Internal wave break at concave and convex continental slopes Type: Journal article Publication: Journal of Physical Oceanography Author(s): Legg, S ; Adcroft, Alistair J. Year: 2003 Formatted Citation: Legg, S., and A. J. Adcroft, 2003 : Internal wave breaking at concave and convex continental slopes. Journal of Physical Oceanography, 33 ( 11 ), 2224-2246, doi:10.1175/1520-0485 ( 2003 ) 033 < 2224 : iwbaca > 2.0.co ; 2 Abstract: Internal curl reflection from a sloping topographical boundary may lead to enhanced shear if the topographical slant to the horizontal is close to that of the internal wave group speed vector. previous analytic studies have suggested that shear enhancement is reduced at concave slopes as compared with convex and planar slopes near the critical angle. here the internal wave reflection from concave and convex slopes that pass through the critical slant is investigated numerically using the nonhydrostatic Massachusetts Institute of Technology General Circulation Model ( MITgcm ). Overturning, shear instability, and vector sum mix are examined. Results are compared with simulations of wave mirror image from planar slopes with angles greater than, less than, and peer to the critical slant. In line to the analytic predictions, no reduction in mix is found for the concave slope as compared with the other slopes. In all cases, stratification is eroded in a band above the gradient, bounded at its out border by the inner wave characteristic. The dispute between numeral and analytic results is caused by the nonlinearity of the numerical calculations, where the finite-amplitude stream leads to generation of upslope-propagating bores for a wide range of topographical slopes around the critical angle. Keywords: 2 dimensions, deep-ocean, dissipation, finite topography, fluid, model, reflection, scattering, tides ECCO Products Used: URL: Other URLs:
Chen, J. L.; Wilson, C. R.; Hu, X. G.; Tapley, B. D. (2003). Large-scale mass redistribution in the oceans, 1993-2001, Geophysical Research Letters, 20 (30), 10.1029/2003GL018048. Title: large-scale aggregate redistribution in the oceans, 1993-2001 Type: Journal article Publication: Geophysical Research Letters Author(s): Chen, J. L. ; Wilson, C. R. ; Hu, X. G. ; Tapley, B. D. Year: 2003 Formatted Citation: Chen, J. L., C. R. Wilson, X. G. Hu, and B. D. Tapley, 2003 : large-scale mass redistribution in the oceans, 1993-2001. Geophys. Res. Lett., 30 ( 20 ), doi:10.1029/2003GL018048 Abstract: A recent survey of satellite laser ranging measurements by Cox and Chao [ 2002 ] indicates that large-scale multitude redistribution has caused a rapid change in Earth ‘s dynamic oblateness ( J2 ) since 1998. Using satellite altimeter observations and two runs of an ocean general circulation models ( OGCM ), we examine mass variations in the oceans and their estimated effect on J2. Combined altimeter and OGCM results indicate variations exchangeable to the J2 changes in 1998, and bode well larger oceanic effects on the J2 anomaly than strictly OGCM estimates, suggesting that the oceans should not be ruled out by any means as a significant reference of this matter to geodetic anomaly, until they have been studied further. Keywords: ECCO Products Used: ECCO-KFSURL: http://doi.wiley.com/10.1029/2003GL018048 Other URLs:
McKinley, Galen A.; Follows, Michael J.; Marshall, J; Fan, S M (2003). Interannual variability of air-sea O2 fluxes and the determination of CO2 sinks using atmospheric O2/N2, Geophysical Research Letters, 3 (30), 10.1029/2002gl016044. Title: Interannual variability of air-sea O2 fluxes and the determination of CO2 sinks using atmospheric O2/N2 Type: Journal article Publication: Geophysical Research Letters Author(s): McKinley, Galen A. ; Follows, Michael J. ; Marshall, J ; Fan, S M Year: 2003 Formatted Citation: McKinley, G. A., M. J. Follows, J. Marshall, and S. M. Fan, 2003 : Interannual variability of air-sea O2 fluxes and the determination of CO2 sinks using atmospheric O2/N2. Geophys. Res. Lett., 30 ( 3 ), doi:10.1029/2002gl016044 Abstract: Motivated by the use of atmospheric O-2/N-2 to determine CO2 sinks under the assumption of negligible interannual variability in air-sea O-2 fluxes, we examine interannual fluctuations of the ball-shaped air-sea liquefy of O-2 during the period 1980-1998 using a global ocean circulation and biogeochemistry model along with an atmospheric ecstasy model. It is found that both the El Nino/Southern Oscillation ( ENSO ) bicycle and winter convection in the North Atlantic are primary drivers of ball-shaped air-sea oxygen flux density interannual variability. Model estimated extremes of O-2 flux variability are -70/+100 x 10 12 mol/yr ( Tmol/yr ), where convinced fluxes are to the atmosphere. O-2/N-2 unevenness could cause an up to +/-1.0 PgC/yr error in estimates of interannual unevenness in domain and ocean CO2 sinks derived from atmospheric O-2/N-2 observations. Keywords: carbon-cycle, circulation, model, north-atlantic, oxygen ECCO Products Used: ECCO-KFS URL: Other URLs:
Ménard, Yves; Fu, Lee Lueng; Escudier, P.; Parisot, F.; Perbos, J.; Vincent, P.; Desai, S.; Haines, B.; Kunstmann, G. (2003). The Jason-1 Mission, Marine Geodesy, 3-4 (26), 131-146, 10.1080/714044514. Title: The Jason-1 Mission Type: Journal article Publication: Marine Geodesy Author(s): Ménard, Yves ; Fu, Lee Lueng ; Escudier, P. ; Parisot, F. ; Perbos, J. ; Vincent, P. ; Desai, S. ; Haines, B. ; Kunstmann, G. Year: 2003 Formatted Citation: Ménard, Y. and Coauthors, 2003 : The Jason-1 Mission. Marine Geodesy, 26 ( 3-4 ), 131-146, doi:10.1080/714044514 Abstract: On December 7, 2001, the Jason-1 satellite was successfully launched by a Boeing Delta II rocket from the Vandenberg locate in California, USA. Its independent mission was to maintain the gamey accuracy altimeter measurements, provided since 1992 by TOPEX/Poseidon ( T/P ), ensuring continuity in observing and monitoring the ocean for intraseasonal to interannual changes, mean sea level, tides, and so forth. Despite four times less mass and ability, the Jason-1 system has been designed to have the same performances as T/P, measuring sea surface topography at the centimeter level. This new Centre National d’Etudes Spatiales/National Aeronautics and Space Administration ( CNES/NASA ) mission besides provides near real-time data for sea state and ocean prognosis. The first gear 10 months of the Jason mission were dedicated to the confirmation of the system performance and cross-calibration with T/P measurements. A complete CALVAL design was conducted by the Science and Project Teams of the deputation based on in situ and regional experiments, global statistical approaches, and multisatellite comparisons, taking advantage of the T/P-Jason overlap during the first months of the mission. CALVAL and foremost skill results showed that the Jason-1 performances were compliant with prelaunch specifications. This was a needed preamble before starting the routine phase of the mission in July 2003 with generation and distribution of validated geophysical data records to the whole drug user community. [ ABSTRACT FROM AUTHOR ] Keywords: Altimetry, CALVAL, JASON-1, Ocean dynamic topography, Operational oceonography, Satellite, Sea level, TOPEX/POSEIDON ECCO Products Used: ECCO-KFS URL: Other URLs:
Biastoch, A; Kase, R H; Stammer, D B (2003). The sensitivity of the Greenland-Scotland Ridge overflow to forcing changes, Journal of Physical Oceanography, 11 (33), 2307-2319, 10.1175/1520-0485(2003)033<2307:tsotgr>2.0.co;2. Title: The sensitivity of the Greenland-Scotland Ridge overflow to forcing changes Type: Journal article Publication: Journal of Physical Oceanography Author(s): Biastoch, A ; Kase, R H ; Stammer, D B Year: 2003 Formatted Citation: Biastoch, A., R. H. Kase, and D. B. Stammer, 2003 : The sensitivity of the Greenland-Scotland Ridge overflow to forcing changes. Journal of Physical Oceanography, 33 ( 11 ), 2307-2319, doi:10.1175/1520-0485 ( 2003 ) 033 < 2307 : tsotgr > 2.0.co ; 2 Abstract: Processes that influence the volume and heat conveyance across the Greenland-Scotland Ridge system are investigated in a numerical mannequin with 1/6degrees horizontal resolution. The focus is on the sensitivity of cross-ridge transports and the reaction of the subpolar North Atlantic Ocean circulation to changes in tip try and irrepressibility forcing on seasonal to interannual timescales. A general relative between changes in wind tension or cross-ridge density contrasts and the overturning transport of Greenland-Iceland-Norwegian Seas source water is established from a series of idealized experiments. The relative is used subsequently to interpret changes in an experiment over the years 1992-97 with realistic force. On seasonal and interannual timescales there is a net correlation between heat flux density and wind instrument stress coil unevenness. The naturalistic model suggests a steady decrease in the persuasiveness of the cyclonic subpolar coil of the North Atlantic with a represent decrease in heat transport during the 1990s. Keywords: denmark pass, general-circulation model, global ocean circulation, irminger seas, labrador, scandinavian seas, north-atlantic, overflow, book, water ECCO Products Used: URL: Other URLs:
Wunsch, C; Stammer, D (2003). III: OCEAN CIRCULATION: Global Ocean Data Assimilation and Geoid Measurements, Space Science Reviews, 1/2 (108), 147-162, 10.1023/A:1026298519493. Title: III : OCEAN CIRCULATION : ball-shaped Ocean Data Assimilation and Geoid Measurements Type: Journal article Publication: Space Science Reviews Author(s): Wunsch, C ; Stammer, D Year: 2003 Formatted Citation: Wunsch, C., and D. Stammer, 2003 : three : OCEAN CIRCULATION : global Ocean Data Assimilation and Geoid Measurements. Space Science Reviews, 108 ( 1/2 ), 147-162, doi:10.1023/A:1026298519493 Abstract: Parts of geodesy and physical oceanography are about to mature into a one model trouble involving the coincident estimate of the marine geoid and the general circulation. Both fields will benefit. To this end, we present an ocean department of state estimate ( datum assimilation ) framework which is designed to obtain a dynamically coherent picture of the changing ocean circulation by combining ball-shaped ocean data sets of arbitrary type with a general circulation model ( GCM ). The shock of geoid measurements on such estimates of the ocean circulation are numerous. For the mean circulation, a accurate geoid describes the reference skeleton for dynamic signals in altimetric sea airfoil height observations. For the time-varying ocean signal, changing geoid data might be a valuable fresh information about correcting the changing hang airfield on time scales from a few month to a year, but the quantitative utility of such data has not so far been demonstrated. For a consistent estimate, some cognition of the prior error covariances of all data fields is required. The final examination result must be consistent with prior error estimates for the data. State appraisal is frankincense one of the few quantitative consistency checks for modern geoid measurements anticipated from forthcoming space missions. Practical quantitative methods will yield a best possible estimate of the dynamic ocean surface which, when combined with satellite altimetric surfaces, will produce a best-estimate marine geoid. The expect accuracy and preciseness of such estimates raises some fresh mold error issues which have not conventionally been of concern ( the Boussinesq approximation, self-attraction and load ). Model skill at very high frequencies is a major concern because of the necessitate to de-alias the data obtained by the inevitable oceanic temporal undersampling dictated by naturalistic satellite eye socket configurations. Keywords: atlantic, boussinesq, equations, general-circulation model, satellite altimetry, low-lying slope ECCO Products Used: URL: http://link.springer.com/10.1023/A:1026298519493 Other URLs:
Fieguth, Paul W; Menemenlis, Dimitris; Fukumori, Ichiro (2002). Mapping and pseudo-inverse algorithms for data assimilation, IEEE International Geoscience and Remote Sensing Symposium (6), 3221-3223, 10.1109/IGARSS.2002.1027136. Title: Mapping and pseudo-inverse algorithm for data assimilation Type: Conference Proceedings Publication: IEEE International Geoscience and Remote Sensing Symposium Author(s): Fieguth, Paul W ; Menemenlis, Dimitris ; Fukumori, Ichiro Year: 2002 Formatted Citation: Fieguth, P. W., D. Menemenlis, and I. Fukumori, 2002 : mapping and pseudo-inverse algorithm for data assimilation. IEEE International Geoscience and Remote Sensing Symposium IEEE, 6, 3221-3223 pp. doi:10.1109/IGARSS.2002.1027136. Abstract: Among existing ocean data assimilation methodologies, reduced-state Kalman filters are a widely-studied compromise between resolving power, optimality, error specification, and computational feasibility. In such reduced-state filters, the measurement update takes target on a coarse grid than that of the general circulation model ( GCM ) ; consequently, these filters require mapping operators from the GCM grid to the reduced state and vice-versa. The general requirements are that the state-reduction and interpolation operators be pseudo-inverses of each other, that the coarse state defines a close up dynamic arrangement, that the map operations be insensitive to noise, and that they be allow for regions with irregular coastlines and bathymetry. In this composition we investigate a assortment of approaches, including computing the pseudoinverse by beast force, using the FFT, subsampling methods, implicit methods, and finally develop a novel iterative overture. We besides evaluate the function performance of eleven interpolation kernels ; surprisingly, common kernels such as bilinear, exponential, gaussian, and sinc, performed alone moderately well. This comprehensive examination study greatly reduces the computational bottleneck and guess of pseudo-inverse algorithm, making potential the application of reduced-state filters to global problems at state-of-the-art resolution. Keywords: ECCO Products Used: ECCO-KFSURL: http://ieeexplore.ieee.org/document/1027136/ Other URLs:
Halpern, David (2002). 2001 Annual Report- Climate Variability Program. Title: 2001 Annual Report- Climate Variability Program Type: Report Publication: Author(s): Halpern, David Year: 2002 Formatted Citation: Halpern, D., 2002 : 2001 Annual Report- Climate Variability Program., Pasadena, CA, 78 pp. hypertext transfer protocol : //ntrs.nasa.gov/search.jsp ? R=20020048546. Abstract: The Annual Report of the Climate Variability Program concisely describes research activities of Principal Investigators who are funded by NASA ‘s Earth Science Enterprise Research Division. The reputation is focused on the class 2001. use of satellite observations is a singularity of research on climate skill and technology at JPL. research at JPL has two focus : generate fresh cognition and develop new technology. Keywords: ECCO Products Used: ECCO-KFSURL: https://ntrs.nasa.gov/search.jsp?R=20020048546 Other URLs:
Stammer, Detlef; Wunsch, C; Fukumori, I; Marshall, J (2002). State estimation improves prospects for ocean research, Eos, Transactions American Geophysical Union, 27 (83), 289-295, 10.1029/2002EO000207. Title: State estimate improves prospects for ocean research Type: Journal article Publication: Eos, Transactions American Geophysical Union Author(s): Stammer, Detlef ; Wunsch, C ; Fukumori, I ; Marshall, J Year: 2002 Formatted Citation: Stammer, D., C. Wunsch, I. Fukumori, and J. Marshall, 2002 : State appraisal improves prospects for ocean research. Eos, Transactions American Geophysical Union, 83 ( 27 ), 289-295, doi:10.1029/2002EO000207 Abstract: rigorous global ocean department of state appraisal methods can now be used to produce dynamically coherent time-varying model/data syntheses, the results of which are being used to study a variety of crucial scientific problems. design 1 shows a conventional of a complete ocean observe and synthesis system that includes global observations and state-of-the-art ocean general circulation models ( OGCM ) run on modern computer platforms. A global observe organization is described in detail in Smith and Koblinsky [ 2001 ], and the present status of ocean model and anticipate improvements are addressed by Griffies et aluminum. [ 2001 ]. here, the focus is on the third component of state of matter estimate : the synthesis of the observations and a exemplary into a unite, dynamically consistent estimate. Keywords: 4294 Instruments and techniques, 4504 Air/sea interactions, 4532 General circulation ECCO Products Used: URL: http://dx.doi.org/10.1029/2002EO000207 Other URLs:
Lee, T; Fukumori, I; Menemenlis, Dimitris; Xing, Z F; Fu, L L (2002). Effects of the Indonesian Throughflow on the Pacific and Indian oceans, Journal of Physical Oceanography, 5 (32), 1404-1429, 10.1175/1520-0485(2002)032<1404:Eotito>2.0.Co;2. Title: Effects of the Indonesian Throughflow on the Pacific and indian oceans Type: Journal article Publication: Journal of Physical Oceanography Author(s): Lee, T ; Fukumori, I ; Menemenlis, Dimitris ; Xing, Z F ; Fu, L L Year: 2002 Formatted Citation: Lee, T., I. Fukumori, D. Menemenlis, Z. F. Xing, and L. L. Fu, 2002 : Effects of the Indonesian Throughflow on the Pacific and amerind oceans. Journal of Physical Oceanography, 32 ( 5 ), 1404-1429, doi:10.1175/1520-0485 ( 2002 ) 032 < 1404 : Eotito > 2.0.Co ; 2 Abstract: Effects of the indonesian Throughflow ( ITF ) on the circulation and thermal social organization of the Pacific and indian Oceans are studied by comparing solutions of a near-global ocean general circulation model with open and closed indonesian passages from 1981 to 1997. The ITF contributes to the maintenance of the model circulation system around easterly Australia and the southern indian Ocean. obstruction of the ITF weakens the amerind Ocean South Equatorial Current and Agulhas Current and strengthens the East Australian Current. The ITF does not affect the Mindanao Current, but drains waters carried by this stream into the amerind Ocean and therefore reduces tropical-subtropical exchange in the North Pacific. interim, it helps maintain a stronger New Guinea Coastal Undercurrent and therefore enhances tropical-subtropical switch over in the confederacy. Water parcels traveling along the western limit of the South Pacific cross the equator in the presence of the ITF but are confined to the Southern Hemisphere without the ITF. The southerly “ commute window ” in which subducted waters can reach the Tropics is wider with than without the ITF. Some parcels from the southerly subtropics can reach the Tropics with open ITF, but recirculate back to the subtropical coil when the ITF is closed. These “ excess ” recirculated parcels reach several degrees far south and outcrop north of Tasmania. The consequence on sea surface temperature ( SST ) there may have an authoritative implication to the local climate. obstruction of the ITF depresses the mean thermocline of the tropical Pacific, increases SST in the cardinal to eastern equatorial Pacific, and therefore reduces the SST difference between the strong consortium and cold tongue. It besides raises the hateful thermocline of the indian Ocean ( specially the southern amerind Ocean ) and decreases SST in the southerly indian Ocean. blockage of the ITF reduces seasonal-to-interannual thermocline fluctuations in the central to eastern equatorial Pacific because the resulting deeper thermocline attenuates fluctuations in reception to local Ekman pump. The antonym is genuine in the southerly indian Ocean for the interannual timescale. however, seasonal thermocline fluctuation in that area is weakened when the ITF is blocked ( despite a shallower thermocline ). It indicates that local Ekman pump is not the dominant allele mechanism controlling seasonal worker thermocline unevenness there angstrom previously suggested. radiation of erratic waves from the ITF area and advection by the ITF-dependent South Equatorial Current could besides be authoritative. blockage of the ITF besides reduces interannual unevenness of SST in the eastern equatorial Pacific and enhances those in the tropical southern amerind Ocean and south of Tasmania. The results indicate that the ITF may affect El Nino-Southern Oscillation by modifying tropical-subtropical exchanges, mean tropical thermocline structure, average SST difference between the warm pool and cold clapper, and seasonal-to-interannual variabilities of thermocline depth and SST. Keywords: appearance reality, climatology, el-nino, substitution, general-circulation exemplary, north pacific, originate, parameterization, thermocline, water system ECCO Products Used: ECCO-KFS URL: Other URLs:
Lee, Tong; Fukumori, Ichiro; Menemenlis, Dimitris; Fu, Lee-Lueng (2002). Upper-ocean Heat Budget Inferred From ECCO-2 Ocean Data Assimilation, 2002 International Symposium En Route to GODAE, 2. Title: Upper-ocean Heat Budget Inferred From ECCO-2 Ocean Data Assimilation Type: Conference Proceedings Publication: 2002 International Symposium En Route to GODAE Author(s): Lee, Tong ; Fukumori, Ichiro ; Menemenlis, Dimitris ; Fu, Lee-Lueng Year: 2002 Formatted Citation: Lee, T., I. Fukumori, D. Menemenlis, and L. Fu, 2002 : Upper-ocean Heat Budget Inferred From ECCO-2 Ocean Data Assimilation. 2002 International Symposium En Route to GODAE, Biarritz, France, 2 pp. Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: https://trs.jpl.nasa.gov/handle/2014/8786 Other URLs: hypertext transfer protocol : //hdl.handle.net/2014/8786
Heimbach, P; Hill, C; Giering, R (2002). Automatic generation of efficient adjoint code for a parallel Navier-Stokes solver, Computational Science-Iccs 2002, Pt Ii, Proceedings (2330), 1019-1028. Title: Automatic generation of effective adjoint code for a twin Navier-Stokes problem solver Type: Book part Publication: Computational Science-Iccs 2002, Pt Ii, Proceedings Author(s): Heimbach, P ; Hill, C ; Giering, R Year: 2002 Formatted Citation: Heimbach, P., C. Hill, and R. Giering, 2002 : automatic rifle generation of efficient adjoint code for a analogue Navier-Stokes problem solver. computational Science-Iccs 2002, Pt Ii, Proceedings, P. Sloot, C. J. K. Tan, J. J. Dongarra, and A. G. Hoekstra, Eds., Springer-Verlag Berlin, 2330, 1019-1028 Abstract: We describe key computational aspects of automatic specialization applied to the global ocean state estimate problem. The tax of minimizing a price function measuring the ocean pretense vs. observation misfit is achieved through efficient calculation of the cost gradient w.r.t. a set of controls via the adjoint technique. The adjoint code of the parallel MIT general circulation model is generated using TAMC. To achieve a amenable trouble in both CPU and memory requirements, despite the control hang, reversal, the adjoint code relies heavily on the balance of storing vs. recomputation via the checkpointing method acting. far savings are achieved by exploiting self-adjointedness of depart of the calculation. To retain scalability of the world decomposition, handwritten adjoint routines are provided which complement routines of the twin support package ( such as inter-processor communications, ball-shaped operations, active variable I/O ) to perform corresponding operations in reverse modality. The size of the trouble is illustrated for the ball-shaped ocean estimate problem and results are given by way of exercise. Keywords: construction ECCO Products Used: URL: Other URLs:
McKinley, Galen Anile (2002). Interannual variability of air-sea fluxes of carbon dioxide and oxygen. Title: Interannual variability of air-sea fluxes of carbon dioxide and oxygen Type: thesis Publication: Author(s): McKinley, Galen Anile Year: 2002 Formatted Citation: McKinley, G. A., 2002 : Interannual unevenness of air-sea fluxes of carbon dioxide and oxygen., 169 pp. Abstract: The presently observe increase in atmospheric CO 2 due anthropogenetic emissions is sub- stantially slowed by natural processes that incorporate CO 2 into the tellurian biota and the ocean. Year-to-year changes in the CO 2 emergence rate that exceed variations in the dodo fuel source indicate a significant variability in these global CO 2 sinks. however, the enormous complexity of the sublunar and oceanic biogeochemical systems that absorb atmospheric CO 2 makes these sinks highly unmanageable to understand and precisely quantify. many techniques, including the interpretation of the proportional changes in atmospheric CO 2 and O 2 /N 2, ocean model, and atmospheric data inversions, have been employed to estimate the hateful and variability of global CO 2 sinks. however, doubt remains bombastic. The goal of this thesis is to improve reason of ball-shaped CO 2 sinks by considering ( 1 ) the mistake in the atmospheric O 2 /N 2 partitioning method acting due to the fail of interannual unevenness in the air-sea fluxes of O 2, and ( 2 ) the interannual variability of the ocean CO 2 sink. A ball-shaped, high-resolution ocean cosmopolitan circulation model is used to estimate the magnitude and understand the mechanism of interannual variability in air-sea fluxes of both CO 2 and O 2. I find that the ball-shaped variability in the flux of both gases are dominantly forced by large-scale physical processes governing amphetamine ocean dynamics, peculiarly El Niño / Southern Oscillation ( ENSO ) and, for O 2, the North Atlantic Oscillation ( NAO ). Estimates of the extremes of CO 2 and O 2 flux variability for the period 1980-1998 are ±0.5×10 15 grams Carbon/yr ( PgC/yr ) and -70/+100×10 12 mol/yr ( Tmol/yr ), respectively. Global O 2 blend unevenness implies up to a 1.0 PgC/yr error in estimates of interannual unevenness in bring and ocean CO 2 sinks derived from atmospheric O 2 /N 2 observations. This error is significant for estimates of annual sinks, but it is cumulatively negligible for estimates of mean sinks from October 1991 to April 1998. Increasing overlap of estimates of down and ocean carbon sink unevenness from autonomous methods is besides found. Keywords: ECCO Products Used: ECCO-KFSURL: http://hdl.handle.net/1721.1/16824 Other URLs: hypertext transfer protocol : //dspace.mit.edu/bitstream/handle/1721.1/16824/51042777-MIT.pdf ? sequence=2
Fukumori, I (2002). A partitioned Kalman filter and smoother, Monthly Weather Review, 5 (130), 1370-1383, 10.1175/1520-0493(2002)130<1370:Apkfas>2.0.Co;2. Title: A partition Kalman trickle and fluent Type: Journal article Publication: Monthly Weather Review Author(s): Fukumori, I Year: 2002 Formatted Citation: Fukumori, I., 2002 : A partition Kalman trickle and fluent. Monthly Weather Review, 130 ( 5 ), 1370-1383, doi:10.1175/1520-0493 ( 2002 ) 130 < 1370 : Apkfas > 2.0.Co ; 2 Abstract: A newly approach is advanced for approximating Kalman trickle and smoothing suitable for oceanic and atmospheric data assimilation. The method solves the larger estimate problem by partitioning it into a series of smaller calculations. Errors with little correlation distances are derived by regional approximations, and errors associated with independent processes are evaluated individually from one another. The overall uncertainty of the model state, american samoa well as the Kalman filter and fluent, is approximated by the kernel of the match individual components. The resulting smaller dimensionality of each freestanding chemical element renders application of Kalman filtering and smoothing to the larger problem much more practical than otherwise. In particular, the approximation makes high-resolution global eddy-resolving data assimilation computationally feasible. The approach is described and its efficacy demonstrated using a simple unidimensional shallow urine model. Keywords: data assimilation, el-nino, nino-southern cycle, ocean circulation model, oceanography, low-lying, topex/poseidon, tropical pacific-ocean ECCO Products Used: ECCO-KFS URL: Other URLs:
Dickey, J O; Marcus, S L; de Viron, O; Fukumori, I (2002). Recent Earth oblateness variations: Unraveling climate and postglacial rebound effects, Science, 5600 (298), 1975-1977, 10.1126/Science.1077777. Title: Recent Earth oblateness variations : Unraveling climate and postglacial rebound effects Type: Journal article Publication: science Author(s): Dickey, J O ; Marcus, S L ; de Viron, O ; Fukumori, I Year: 2002 Formatted Citation: Dickey, J. O., S. L. Marcus, O. de Viron, and I. Fukumori, 2002 : late Earth oblateness variations : Unraveling climate and postglacial rebound effects. Science, 298 ( 5600 ), 1975-1977, doi:10.1126/Science.1077777 Abstract: Earth ‘s moral force oblateness ( J ( 2 ) ) has been decreasing due to postglacial rebound ( PGR ). however, J ( 2 ) began to increase in 1997, indicating a pronounce global-scale mass redistribution within Earth ‘s system. We have determined that the respect increases in J ( 2 ) are caused chiefly by a holocene surge in subpolar glacial melt and by aggregate shifts in the Southern, Pacific, and indian oceans. When these effects are removed, the residual course in J ( 2 ) ( -2.9 adam 10 ( -11 ) year ( -1 ) ) becomes coherent with previous estimates of PGR from satellite and eclipse data. The climatic significance of these rapid shifts in glacial and oceanic mass, however, remains to be investigated. Keywords: glaciers, reanalysis, rotation ECCO Products Used: ECCO-KFS URL: Other URLs:
Stammer, D; Wunsch, C; Giering, R; Eckert, C; Heimbach, P; Marotzke, J; Adcroft, Alistair J.; Hill, C N; Marshall, J (2002). Global ocean circulation during 1992-1997, estimated from ocean observations and a general circulation model, Journal of Geophysical Research-Oceans, C9 (107), 10.1029/2001jc000888. Title: Global ocean circulation during 1992-1997, estimated from ocean observations and a cosmopolitan circulation mannequin Type: Journal article Publication: Journal of Geophysical Research-Oceans Author(s): Stammer, D ; Wunsch, C ; Giering, R ; Eckert, C ; Heimbach, P ; Marotzke, J ; Adcroft, Alistair J. ; Hill, C N ; Marshall, J Year: 2002 Formatted Citation: Stammer, D. and Coauthors, 2002 : global ocean circulation during 1992-1997, estimated from ocean observations and a general circulation model. J. Geophys. Res. Ocean., 107 ( C9 ), doi:10.1029/2001jc000888 Abstract: [ 1 ] A three-dimensional oceanic express is estimated for the period 1992-1997 as it results from combining large-scale ocean data sets with a cosmopolitan circulation model. At the cost of increased computational load, the appraisal ( assimilation ) method acting is chosen specifically thus that the resulting state estimate is coherent with the model equations, having no artificial sources or sinks. To bring the model into near agreement with observations, its initial temperature and salt conditions are permitted to change, as are the time-dependent surface fluxes of momentum, heat and fresh water. Resulting changes of these “ control vectors ” are largely reproducible with bear uncertainties in the hydrographic climatology and meteorologic analyses. The assimilation routine is able to correct for many of the traditional shortcomings of the hang playing field by changing the surface boundary conditions. Changes in the resulting menstruate field are predominantly on the coil scale and affect many features that are much ill simulated in traditional numeral simulations, such as the strengths of the Gulf Stream and its extension, the Azores Current and the anticyclonic circulation associated with the Labrador Sea. Tests of the results and their consistency with prior error assumptions show that the constrained model has moved well closer to the observations imposed as constraints, but has besides moved closer to independent data from the World Ocean Circulation Experiment not used in the acculturation operation. In some regions where the comparisons remain indeterminate, not adequate ocean observations are available, and it is unmanageable to ascribe the residuals to either the exemplar or the observations. Although problems remain, a utilitarian first solution to the ball-shaped time-dependent ocean state estimate problem has been found. The estimates will continue to improve through the evolution of numeric models, calculator power increases, more data, and more efficient estimate methods. Keywords: altimeter data, structure, data assimilation, data assimilation system, data synthesis, motions, numeral model, ocean circulation, sensitivity, country estimate, temperature, variability ECCO Products Used: ECCO-V0 URL: Other URLs:
Wang, Shizhen (2002). Sea Level Change and Crustal Motion around Taiwan Observed by Satellite Altimetry and Tide Gauge. Title: Sea Level Change and Crustal Motion around Taiwan Observed by Satellite Altimetry and Tide Gauge Type: thesis Publication: Author(s): Wang, Shizhen Year: 2002 Formatted Citation: Wang, S., 2002 : Sea Level Change and Crustal Motion around Taiwan Observed by Satellite Altimetry and Tide Gauge., 113 pp. doi:10.6844/NCKU.2013.00281. Abstract: Taiwan is an island, where most of mountains located at the central area, and most highly develop cities are located near the coasts. Compared with other countries, sea degree rise could cause a proportional significant impact on Taiwan. In addition, resulting from the over-withdrawal of groundwater, the western area of Taiwan suffers from a austere cave in. consequently, monitoring sea degree variations and vertical motions have become a very significant topic for Taiwan. traditionally, the most common instruments used to measure ocean surface heights tide gauges and satellite altimetry ; however, the tide gauge records contain the crustal upright motions and the data bridge of satellite altimetry data is besides short to avoid low-frequency effects on the vogue decision. Since tide gauge records contain sea level and vertical gesticulate signals and altimetry data contains sea level information only, vertical motions at gauges can be accurately computed by the differences of tide gauges and satellite altimetry. The calculate erect motions show that most estimate stations in Taiwan and Philippines were subsiding except for in China. The erect uplift in China is related to the geological tectonics and morphology. In order to determine sea floor accurately around Taiwan, we adopted a novel algorithm to determine accurate sea flush swerve by combining tide gauges and satellite altimeter data in the learn. First of all, Hilbert-Huang Transformation ( HHT ) method acting is used to decompose the selected tide gauge records wholly into few independent monotones cycles, which called Intrinsic Mode Functions ( IMFs ). Afterwards, the residual time serial computed by subtracting sea level clock serial reconstructed using specific IMFs, which represent broken frequencies and can not be clearly detected in altimeter data, from the corresponding altimetry data is fitted to derive the sea grade swerve. According to the result, the estimated sea horizontal surface swerve around Taiwan is 4.23 mm/yr, which is higher than ball-shaped beggarly sea degree of 3.11 mm/yr [ Ablain et al., 2009 ]. A comparison of steric sea level ( SSL ), GRACE derived ocean mass change and entire sea horizontal surface around Taiwan is besides investigated in the learn. The result indicates that SSL contributes more than ocean mass does and dominates sea horizontal surface trends around Taiwan. finally, the ball-shaped ocean level course derived from the reconstructed latitude-weighted meter series using the last two IMFs by HHT is determined at 3.12 mm/yr, agreeing well with previous studies. Keywords: Crustal motion, HHT, Satellite altimetry, Sea charge change, Tide gauge ECCO Products Used: ECCO-KFSURL: http://dx.doi.org/10.6844/NCKU.2013.00281 Other URLs: hypertext transfer protocol : //www.airitilibrary.com/Publication/alDetailedMesh1 ? DocID=U0026-0502201301312300
Wunsch, C (2002). Oceanic age and transient tracers: Analytical and numerical solutions, Journal of Geophysical Research-Oceans, C6 (107), 10.1029/2001jc000797. Title: Oceanic age and ephemeral tracers : Analytical and numeral solutions Type: Journal article Publication: Journal of Geophysical Research-Oceans Author(s): Wunsch, C Year: 2002 Formatted Citation: Wunsch, C., 2002 : oceanic age and transient tracers : Analytical and numeric solutions. J. Geophys. Res. Ocean., 107 ( C6 ), doi:10.1029/2001jc000797 Abstract: [ 1 ] Transient tracers and the closely related “ long time ” tracers exhibit a rich forcible and mathematical structure flush for problems of one space dimension. This fullness tends to make interpretation of observations, which are inevitably thin in both quad and clock time, difficult, in contrast to the situation in modeling studies. At least six different timescales and corresponding distance scales can appear in unidimensional problems. In higher dimensions the numeral of scales increases. several examples of analytic and numerical solutions are explored for the light they cast on understanding a fluent flow. Boundary green functions emerge as the fundamental physical/mathematical link between inside tracer distributions and surface and other boundary variations. With transient tracers in inverse calculations one should normally use the implicit in tracer distributions to attempt to solve for fundamental fluid properties, such as the mix coefficients, rather than ambiguous “ ventilation ” times, which among early problems, may be determined merely by the signal detection doorsill and are much chiefly functions of the tracer decay constant quite than of fluid properties. Tracers that are ephemeral entirely through stochastic boundary conditions show that large-scale space/time patterns can emerge in the tracer playing field, having little or no clear association to the implicit in fluent run. Keywords: advection/diffusion, senesce tracers, chlorofluorocarbon, climate, diffusion, easterly north-atlantic, general-circulation model, coil ventilation, blend, observations, pacific-ocean, pycnocline, brininess, stratospheric transportation, tracers, transeunt ECCO Products Used: URL: Other URLs:
Menemenlis, Dimitris; Fu, Lee-Lueng; Lee, Tong; Fukumori, Ichiro (2002). Calibrating the ECCO ocean general circulation model using Green’s functions, 2002 International Symposium En Route to GODAE, 2. Title: Calibrating the ECCO ocean general circulation model using Green ’ s functions Type: Conference Proceedings Publication: 2002 International Symposium En Route to GODAE Author(s): Menemenlis, Dimitris ; Fu, Lee-Lueng ; Lee, Tong ; Fukumori, Ichiro Year: 2002 Formatted Citation: Menemenlis, D., L. Fu, T. Lee, and I. Fukumori, 2002 : Calibrating the ECCO ocean cosmopolitan circulation mannequin using Green ‘s functions. 2002 International Symposium En Route to GODAE, Biarritz, France, 2 pp. hypertext transfer protocol : //hdl.handle.net/2014/8710. Abstract: Green ‘s functions provide a simple, yet effective, method to test and calibrate General-Circulation-Model ( GCM ) parameterizations, to study and quantify model and data errors, to correct exemplar biases and trends, and to blend estimates from different solutions and data products. Keywords: ECCO Products Used: ECCO-KFSURL: http://hdl.handle.net/2014/8710 Other URLs:
Schröter, Jens; Fukumori, Ichiro; Stammer, Detlef; Wenzel, Manfred; Wolf-Gladrow, Dieter (2002). Research and climate applications, Proceedings “En route to GODAE”. Title: Research and climate applications Type: Conference Proceedings Publication: Proceedings “ En route to GODAE ” Author(s): Schröter, Jens ; Fukumori, Ichiro ; Stammer, Detlef ; Wenzel, Manfred ; Wolf-Gladrow, Dieter Year: 2002 Formatted Citation: Schröter, J., I. Fukumori, D. Stammer, M. Wenzel, and D. Wolf-Gladrow, 2002 : research and climate applications. Proceedings “ En path to GODAE ” hypertext transfer protocol : //epic.awi.de/5690/1/Sch2002q.pdf. Abstract: Keywords: ECCO Products Used: ECCO-KFS ; ECCO-V0URL: http://epic.awi.de/5690/1/Sch2002q.pdf Other URLs:
Wunsch, C (2002). What is the thermohaline circulation?, Science, 5596 (298), 1179-+, 10.1126/science.1079329. Title: What is the thermohaline circulation ? Type: Journal article Publication: science Author(s): Wunsch, C Year: 2002 Formatted Citation: Wunsch, C., 2002 : What is the thermohaline circulation ? Science, 298 ( 5596 ), 1179-+, doi:10.1126/science.1079329 Abstract: Keywords: ECCO Products Used: URL: Other URLs:
Wunsch, Carl (2002). Ocean observations and the climate forecast problem, International Geophysics (Volume 83), 233-245, 10.1016/S0074-6142(02)80170-X. Title: Ocean observations and the climate calculate problem Type: Book department Publication: International Geophysics Author(s): Wunsch, Carl Year: 2002 Formatted Citation: Wunsch, C., 2002 : ocean observations and the climate prognosis problem. International Geophysics, R. P. Pearce, Eds., Academic Press, bulk 83, 233-245, doi:10.1016/S0074-6142 ( 02 ) 80170-X Abstract: The wide disseminated and accepted scene of the ocean as a nearly-steady, nearly-laminar system is chiefly a consequence of the great trouble of observing it, and of the intense computational price of modelling it. uncritical use of the steady/laminar framework has led to a gross distortion of the skill, particularly the report of climate change, partially manifested by the impression that a relatively belittled number of bare observations suffices to describe the system, and by the inference that oceanic demeanor under changed external wedge can be deduced by arrant thought without integration of the equations of motion. All of the evidence of the last 25 years shows that the behavior is much more concern and complex than this deform opinion would imply. real build up will involve confronting the actual system, not the assumed one. Keywords: ECCO Products Used: URL: http://www.sciencedirect.com/science/article/pii/S007461420280170X Other URLs:
Kase, R H; Biastoch, A; Stammer, D B (2001). On the Mid-Depth Circulation in the Labrador and Irminger Seas, Geophysical Research Letters, 18 (28), 3433-3436, 10.1029/2001gl013192. Title: On the Mid-Depth circulation in the Labrador and Irminger Seas Type: Journal article Publication: Geophysical Research Letters Author(s): Kase, R H ; Biastoch, A ; Stammer, D B Year: 2001 Formatted Citation: Kase, R. H., A. Biastoch, and D. B. Stammer, 2001 : On the Mid-Depth circulation in the Labrador and Irminger Seas. Geophys. Res. Lett., 28 ( 18 ), 3433-3436, doi:10.1029/2001gl013192 Abstract: A numerical circulation model with 1/6 degrees settlement and an accurate topography formulation explains details of the respect circulation in the Irminger and Labrador Seas that were recently revealed by Lavender et alabama. [ 2000 ]. We show that the recirculation practice is established through a locally wind induced flow controlled by the bottom topography and enhanced through outback baroclinic force by the dense preen of Denmark Strait overflow water. The basic circulation is a robust feature in a hierarchy of exemplar setups. It exists in the strictly barotropic case driven by steady winds and is even maintained when realistic casual coerce is added, The pin down recirculation zone is manifested by a sea level natural depression spanning from the Denmark Strait across the Irminger into the Labrador Sea. Keywords: north-atlantic ocean ECCO Products Used: URL: Other URLs:
Talley, L D; Stammer, D; Fukumori, I (2001). Towards a WOCE Synthesis, Ocean Circulation and Climate, 525-545, 10.1016/S0074-6142(01)80137-6. Title: Towards a WOCE synthesis Type: Book department Publication: Ocean Circulation and Climate Author(s): Talley, L D ; Stammer, D ; Fukumori, I Year: 2001 Formatted Citation: Talley, L. D., D. Stammer, and I. Fukumori, 2001 : Towards a WOCE Synthesis. Ocean Circulation and Climate, G. Siedler, J. Church, and J. Gould, Eds., Academic Press, 525-545, doi:10.1016/S0074-6142 ( 01 ) 80137-6 Abstract: Keywords: ECCO Products Used: URL: Other URLs:
Stammer, D.; Wunsch, C.; Fukumori, I.; Marshall, J. (2001). State Estimation In Modern Oceanographic Research. Title: State Estimation In Modern Oceanographic Research Type: Report Publication: Author(s): Stammer, D. ; Wunsch, C. ; Fukumori, I. ; Marshall, J. Year: 2001 Formatted Citation: Stammer, D., C. Wunsch, I. Fukumori, and J. Marshall, 2001 : State Estimation In Modern Oceanographic Research., 18 pp. hypertext transfer protocol : //www.ecco-group.org/ecco1/report/report_14.pdf. Abstract: Keywords: ECCO Products Used: ECCO-KFS ; ECCO-V0URL: http://www.ecco-group.org/ecco1/report/report_14.pdf Other URLs:
Fukumori, Ichiro (2001). Data Assimilation by Models, International Geophysics (Volume 69), 237-xvii, 10.1016/S0074-6142(01)80150-9. Title: Data Assimilation by Models Type: Book section Publication: International Geophysics Author(s): Fukumori, Ichiro Year: 2001 Formatted Citation: Fukumori, I., 2001 : Data Assimilation by Models. International Geophysics, L. Fu, and A. Cazenave, Eds., Academic Press, volume 69, 237-xvii, doi:10.1016/S0074-6142 ( 01 ) 80150-9 Abstract: Publisher Summary Data assimilation is a routine that combines observations with models. This chapter provides an overview of data assimilation with an stress on applications to analyzing satellite altimeter data. The problem of data assimilation belongs to the across-the-board playing field of estimate and master theories. The estimates of the dynamic system are improved by correcting model errors with the observations on the one hand and synthesize observations by the models on the early. much of the master mathematical theory of data acculturation was developed in the context of ballistics applications. Data assimilation is an emerging sphere in oceanography, stimulated by holocene improvements in computational and modeling capabilities and the increase in the measure of available oceanographic observations. The continuing increase in computational capabilities have made numerical ocean modeling a commonplace. One of the central merits of data assimilation is its extraction of oceanographic signals from incomplete and noisy observations. Most oceanographic measurements-including altimetry-are characterized by their sparseness in outer space and prison term compared to the built-in scales of ocean unevenness ; this translates into noisy and gappy measurements. Keywords: ECCO Products Used: URL: http://www.sciencedirect.com/science/article/pii/S0074614201801509 Other URLs:
Ponte, R M; Stammer, D; Wunsch, C (2001). Improving ocean angular momentum estimates using a model constrained by data, Geophysical Research Letters, 9 (28), 1775-1778, 10.1029/2000gl011671. Title: Improving ocean angular momentum estimates using a model constrained by data Type: Journal article Publication: Geophysical Research Letters Author(s): Ponte, R M ; Stammer, D ; Wunsch, C Year: 2001 Formatted Citation: Ponte, R. M., D. Stammer, and C. Wunsch, 2001 : Improving ocean angular momentum estimates using a model constrained by data. Geophys. Res. Lett., 28 ( 9 ), 1775-1778, doi:10.1029/2000gl011671 Abstract: Ocean angular momentum ( OAM ) calculations using forward model runs without any data, constraints have recently revealed the effects of OAM variability on the Earth ‘s rotation. here we use an ocean model and its adjoint to estimate OAM values bg constraining the model to available oceanic data. The optimization procedure yields hearty changes in OAM, related to adjustments in both motion and batch fields. angstrom well as in the wind try torques acting on the ocean. Constrained and unconstrained OAM values are discussed in the contest of closing the satellite ‘s angular momentum budget. The estimate operation yields noticeable improvements in the agreement with the detect Earth rotation parameters, particularly at the seasonal timescale. The comparison with Earth rotation measurements provides an independent consistency check on the estimated ocean state and underlines the importance of ocean state estimate for quantitative studies of the variable large-scale oceanic mass and circulation fields, including studies of OAM. Keywords: diametric motion, rotation, signals ECCO Products Used: URL: Other URLs:
Hirose, N; Fukumori, I; Zlotnicki, V; Ponte, R M (2001). Modeling the high-frequency barotropic response of the ocean to atmospheric disturbances: Sensitivity to forcing, topography, and friction, Journal of Geophysical Research-Oceans, C12 (106), 30987-30995, 10.1029/2000jc000763. Title: Modeling the high-frequency barotropic response of the ocean to atmospheric disturbances : sensitivity to storm, topography, and clash Type: Journal article Publication: Journal of Geophysical Research-Oceans Author(s): Hirose, N ; Fukumori, I ; Zlotnicki, V ; Ponte, R M Year: 2001 Formatted Citation: Hirose, N., I. Fukumori, V. Zlotnicki, and R. M. Ponte, 2001 : Modeling the high-frequency barotropic reaction of the ocean to atmospheric disturbances : sensitivity to force, topography, and friction. J. Geophys. Res. Ocean., 106 ( C12 ), 30987-30995, doi:10.1029/2000jc000763 Abstract: This study examines high-frequency ocean charge variations forced by changes in surface atmospheric pressure and scent and their sensitivity to different forcing mechanism, bottom topography resolving power, and amount of clash in a barotropic ocean exemplar. optimum model performance, defined in terms of the excuse variance in satellite altimeter and bottom pressure data, is found when using relatively potent friction, equivalent to a damping timescale of entirely a few days over the deep ocean, and topography with minimal smoothing. spatial variations of the optimum friction parameter seem to reflect the pitting of bottom topography. The exemplar demonstrates skill in simulating the wind-driven reply vitamin a well as the nonequilibrium response to atmospheric pressure variations. Keywords: ball-shaped ocean, blackmail, satellite altimetry, low-lying variability ECCO Products Used: URL: Other URLs:
Scott, J R; Marotzke, J; Adcroft, Alistair J. (2001). Geothermal heating and its influence on the meridional overturning circulation, Journal of Geophysical Research-Oceans, C12 (106), 31141-31154, 10.1029/2000jc000532. Title: Geothermal inflame and its determine on the meridional overrule circulation Type: Journal article Publication: Journal of Geophysical Research-Oceans Author(s): Scott, J R ; Marotzke, J ; Adcroft, Alistair J. Year: 2001 Formatted Citation: Scott, J. R., J. Marotzke, and A. J. Adcroft, 2001 : geothermal inflame and its determine on the meridional overturn circulation. J. Geophys. Res. Ocean., 106 ( C12 ), 31141-31154, doi:10.1029/2000jc000532 Abstract: The effect of geothermal heating system on the meridional revolutionize circulation is examined using an idealize, coarse-resolution ocean cosmopolitan circulation model. This heat is parameterized as a spatially uniform estrus magnetic field of 50 mW megabyte ( -2 ) through the ( flat ) ocean floor, in contrast with former studies that have considered regional circulation changes caused by an sequester hot spot or a series of plumes along the middle atlantic Ridge. In our model results the equilibrate answer is largely advective : a cryptic disturbance of the meridional revoke cell on the rate of several sverdrups is produced, connecting with an upper level circulation at high gear latitudes, allowing the extra heating system to be released to the air. Rising gesticulate in the perturbation bass cell is concentrated near the equator. The up penetration of this cellular telephone is limited by the thermocline, analogous to the role of the stratosphere in limiting the up penetration of convective plumes in the air. The order of magnitude of the advective response is inversely proportional to the deep stratification ; with a weaker background meridional overturning circulation and a less stratify abyss the overturning utmost of the disturbance abstruse cell is increased. This advective reception besides cools the low-latitude thermocline. The qualitative demeanor is exchangeable in both a single-hemisphere and a double-hemisphere shape. In compendious, the anomalous circulation driven by geothermal fluxes is more substantial than previously thought. We are able to understand the structure and lastingness of the response in the idealize geometry and promote extend these ideas to explain the results of Adcroft et alabama. [ 2001 ], where the shock of geothermal heat was examined using a global configuration. Keywords: dynamics, flow, models, ocean circulation, south-pacific, thermohaline circulations ECCO Products Used: URL: Other URLs:
Adcroft, Alistair J.; Scott, J R; Marotzke, J (2001). Impact of geothermal heating on the global ocean circulation, Geophysical Research Letters, 9 (28), 1735-1738, 10.1029/2000gl012182. Title: Impact of geothermal inflame on the ball-shaped ocean circulation Type: Journal article Publication: Geophysical Research Letters Author(s): Adcroft, Alistair J. ; Scott, J R ; Marotzke, J Year: 2001 Formatted Citation: Adcroft, A. J., J. R. Scott, and J. Marotzke, 2001 : impact of geothermal heat on the global ocean circulation. Geophys. Res. Lett., 28 ( 9 ), 1735-1738, doi:10.1029/2000gl012182 Abstract: The response of a ball-shaped circulation exemplar to a uniform geothermal heat blend of 50 mW megabyte ( -2 ) through the sea shock is examined. If the geothermal heat stimulation were transported up strictly by diffusion, the deep ocean would warm by 1.2 degreesC. however, geothermal heating system induces a substantial transfer in the deep circulation which is larger than previously assumed and subsequently the calefacient of the deep ocean is only a quarter of that suggested by the diffusing limit. The numeral ocean model responds most strongly in the Indo-Pacific with an increase in meridional overturn of 1.8 Sv, enhancing the existing overturn by approximately ; 25 %. Keywords: abyssal, energetics, flow, model, pacific, wind ECCO Products Used: URL: Other URLs:
Hirose, N; Fukumori, I; Ponte, R M (2001). A non-isostatic global sea level response to barometric pressure near 5 days, Geophysical Research Letters, 12 (28), 2441-2444, 10.1029/2001gl012907. Title: A non-isostatic ball-shaped sea flush response to barometric press near 5 days Type: Journal article Publication: Geophysical Research Letters Author(s): Hirose, N ; Fukumori, I ; Ponte, R M Year: 2001 Formatted Citation: Hirose, N., I. Fukumori, and R. M. Ponte, 2001 : A non-isostatic global ocean level reply to barometric press near 5 days. Geophys. Res. Lett., 28 ( 12 ), 2441-2444, doi:10.1029/2001gl012907 Abstract: Changes in surface atmospheric pressure normally induce an isostatic response in the ocean characterized by an adaptation in ocean level at the rate of approximately -1cm/hPa. Nonisostatic signals are, however, observed at many tropical tide gauges at periods near 5 days. Our analysis of satellite observations reveals the global nature of these signals, involving nonisostatic sea level fluctuations with about uniform phase within discriminate basins and an out-of-phase oscillation between the Atlantic and Pacific Oceans. Comparisons with a barotropic model further link the observe signals to forcing by a large scale pressure beckon in the atmosphere and show that constrictions between basins prevent an isostatic response from being established. The apparent forced, unreverberant nature of the nonisostatic reaction contrasts with the predominantly evocative ocean dynamics at higher frequencies and may be relevant to explain the behavior of the long period tides. Keywords: normal-modes, pacific, tides, unevenness, waves, worldly concern ocean ECCO Products Used: URL: Other URLs:
Stammer, D; Bleck, R; Boening, C; DeMey, P; Hurlburt, H; Fukumori, I; Le Provost, C; Tokmakian, R; Webb, D (2001). Global Ocean Modeling and State Estimation in Support of Climate Research, Observing the Oceans in the 21st Century. Title: Global Ocean Modeling and State Estimation in Support of Climate Research Type: Conference Proceedings Publication: Observing the Oceans in the twenty-first hundred Author(s): Stammer, D ; Bleck, R ; Boening, C ; DeMey, P ; Hurlburt, H ; Fukumori, I ; Le Provost, C ; Tokmakian, R ; Webb, D Year: 2001 Formatted Citation: Stammer, D. and Coauthors, 2001 : global Ocean Modeling and State Estimation in Support of Climate Research. Observing the Oceans in the twenty-first Century, C. J. Koblinsky, and N. R. Smith, Eds. GODAE Project Office and Bureau of Meteorology, Melbourne, Australia Abstract: During the last decade it has become obvious that the ocean circulation shows vigorous variability on a wide range of time and space scales and that the concept of a “ inert ” and slowly deviate circulation is rather elusive. Increasing vehemence has to be put, therefore, on observing the quickly changing ocean state on time scales ranging from weeks to decades and beyond, and on understanding the ocean ‘s answer to changing atmospheric forcing conditions. As outlined in respective strategy and implementation documents ( for example, the execution plans of WOCE, AMS, CLIVAR, and GODAE ) a combination of the global ocean data sets with a state-of-the-art numeral circulation model is required to interpret the diverse diverse data sets and to produce the best possible estimates of the time-varying ocean circulation. The mechanism of ocean submit estimates is a brawny tool for such a “ deduction ” of observations, obtained on very complex space-time traffic pattern, into one dynamically consistent word picture of the ball-shaped time-evolving ocean circulation. This action has much in coarse with ongoing analysis and reanalysis activities in the atmospheric community. But because the ocean is, and will remain for the foreseeable future, substantially under-sampled, the effect put on the mold and estimations components is well larger than in the air. furthermore, the smaller dynamic eddy scales which need to be properly parameterized or resolved in ocean model simulations, put rigorous requirements on computational resources for ongoing and enter climate research. Keywords: ECCO Products Used: ECCO-V0 URL: Other URLs:
Dushaw, Brian D.; Bold, G; Chui, C.-S.; Colosi, J; Cornuelle, B; Desaubies, Y; Dzieciuch, M; Forbes, A; Gaillard, F; Gould, J; Howe, B; Lawrence, M; Lynch, J; Menemenlis, Dimitris; Mercer, J; Mikhaelvsky, P; Munk, W; Nakano, I; Schott, F; Send, U; Spindel, R; Terre, T; Worcester, P; Wunsch, C (2001). Observing the ocean in the 2000’s: A strategy for the role of acoustic tomography in ocean climate observation, Observing the Oceans in the 21st Century, 391-418. Title: Observing the ocean in the 2000 ’ mho : A strategy for the function of acoustic imaging in ocean climate observation Type: Book section Publication: Observing the Oceans in the twenty-first century Author(s): Dushaw, Brian D. ; Bold, G ; Chui, C.-S. ; Colosi, J ; Cornuelle, B ; Desaubies, Y ; Dzieciuch, M ; Forbes, A ; Gaillard, F ; Gould, J ; Howe, B ; Lawrence, M ; Lynch, J ; Menemenlis, Dimitris ; Mercer, J ; Mikhaelvsky, P ; Munk, W ; Nakano, I ; Schott, F ; Send, U ; Spindel, R ; Terre, T ; Worcester, P ; Wunsch, C Year: 2001 Formatted Citation: Dushaw, B. D. and Coauthors, 2001 : Observing the ocean in the 2000 ‘s : A strategy for the character of acoustic imaging in ocean climate observation. Observing the Oceans in the twenty-first Century, C. J. Koblinsky, and N. R. Smith, Eds., GODAE Project Office and Bureau of Meteorology, 391-418 Abstract: Keywords: ECCO Products Used: URL: Other URLs:
Dutkiewicz, Stephanie; Follows, Michael J.; Marshall, J; Gregg, W W (2001). Interannual variability of phytoplankton abundances in the North Atlantic, Deep-Sea Research Part Ii-Topical Studies in Oceanography, 10 (48), 2323-2344, 10.1016/s0967-0645(00)00178-8. Title: Interannual variability of phytoplankton abundances in the North Atlantic Type: Journal article Publication: Deep-Sea Research Part Ii-Topical Studies in Oceanography Author(s): Dutkiewicz, Stephanie ; Follows, Michael J. ; Marshall, J ; Gregg, W W Year: 2001 Formatted Citation: Dutkiewicz, S., M. J. Follows, J. Marshall, and W. W. Gregg, 2001 : Interannual variability of phytoplankton abundances in the North Atlantic. Deep-Sea Research Part Ii-Topical Studies in Oceanography, 48 ( 10 ), 2323-2344, doi:10.1016/s0967-0645 ( 00 ) 00178-8 Abstract: A model is developed for examining spatial patterns of interannual variability in spring chlorophyll concentrations as a response to physical changes. A simplified, two-layer bio-physical exemplar reveals regional responses to interannual unevenness of convective blend. vertical blend can promote productivity in the surface waters through enhance alimentary issue, but besides can retard productiveness due to the transport of phytoplankton below Sverdrup ‘s critical depth. The balance of these processes determines the regimes of reaction in the two-layer model. The regimes may be identified by the proportion of the thickness of Sverdrup ‘s critical level during form and the end of winter mix layer, henry ( c ) /h ( thousand ). The responses predicted by the simplify model are found in a more advanced four-compartment, nitrogen-based ecosystem model, driven by a general circulation model of the North Atlantic. anomalously strong convective mix leads to enhanced chlorophyll concentrations in regions of shallow desegregate layers ( h ( hundred ) /h ( megabyte ) similar to 1 ), such as the subtropics. In contrast, in the subpolar regions, where blend layers are deep ( heat content ( speed of light ) /h ( thousand ) much less than 1 ), the sensitivity to convective blend is weaker, and increased mix can lead to lower phytoplankton abundances. The numeric exemplary besides reveals regions of more complex demeanor, such as the inter-gyre boundary, where advective issue of nutrients plays a meaning character on interannual timescales. preliminary analyses of in situ and outback observations from the Bermuda Atlantic Time-Series, Ocean Weather Station “ India ” and the Coastal Zone Color Scanner besides show qualitative agreement. The conceptual model provides a joyride for the psychoanalysis of ongoing outside ocean-color observations. ( C ) 2001 Elsevier Science Ltd. All rights reserved. Keywords: conceptualization, general-circulation-model, nitrogen, ocean, organic-carbon, pacific, gulfweed ocean, pretense, spring bloom, time-series ECCO Products Used: URL: Other URLs:
Fukumori, I.; Lee, T.; Menemenlis, Dimitris; Fu, L.; Cheng, B.; Tang, B.; Xing, Z.; Giering, R. (2001). Towards operational ocean state estimation, Fifth Symposium on Integrated Observing Systems, 4. Title: Towards functional ocean submit estimate Type: Conference Proceedings Publication: Fifth Symposium on Integrated Observing Systems Author(s): Fukumori, I. ; Lee, T. ; Menemenlis, Dimitris ; Fu, L. ; Cheng, B. ; Tang, B. ; Xing, Z. ; Giering, R. Year: 2001 Formatted Citation: Fukumori, I., T. Lee, D. Menemenlis, L. Fu, B. Cheng, B. Tang, Z. Xing, and R. Giering, 2001 : Towards functional ocean state of matter estimate. Fifth Symposium on Integrated Observing Systems, Alburquerque, New Mexico, 4 pp. Abstract: Keywords: ECCO Products Used: ECCO-KFSURL: http://hdl.handle.net/2014/16207 Other URLs: hypertext transfer protocol : //trs.jpl.nasa.gov/handle/2014/16207
Lee, T; Boulanger, J P; Foo, A; Fu, L L; Giering, R (2000). Data assimilation by an intermediate coupled ocean-atmosphere model: Application to the 1997-1998 El Nino, Journal of Geophysical Research-Oceans, C11 (105), 26063-26087, 10.1029/2000jc900118. Title: Data assimilation by an intermediate coupled ocean-atmosphere model : application to the 1997-1998 El Nino Type: Journal article Publication: Journal of Geophysical Research-Oceans Author(s): Lee, T ; Boulanger, J P ; Foo, A ; Fu, L L ; Giering, R Year: 2000 Formatted Citation: Lee, T., J. P. Boulanger, A. Foo, L. L. Fu, and R. Giering, 2000 : Data acculturation by an intermediate coupled ocean-atmosphere model : lotion to the 1997-1998 El Nino. J. Geophys. Res. Ocean., 105 ( C11 ), 26063-26087, doi:10.1029/2000jc900118 Abstract: Sea surface temperature, ocean level, and pseudo wind try anomaly data from late 1996 to early 1998 are assimilated into an intermediate conjugate model of the Tropical Pacific. Model data consistency is examined. affect of the assimilation on bode is evaluated. The ocean component of the conjugate model consists of a shoal water model with two baroclinic modes, an Ekman shear layer, and a blend layer temperature equation. The atmospheric model is a statistical one ( based on dominant covariance of historical surface temperature and imposter wind tension anomaly data ). The adjoint method acting is used to fit the couple exemplary to 6 months of data by optimally adjusting the initial state and model parameters. A bode is performed using the end country of an acculturation experiment as initial conditions and using parameters estimated during the assimilation period. Thus the mannequin state during the assimilation and that during the calculate belong to the lapp model trajectory in unlike periods. Such an low-level formatting operation is useful in avoiding initial shock during prognosis due to inconsistency of an initial state with the couple model physics. As a consequence of optimum adjustments of initial state and parameters, the model is able to reproduce observe interannual unevenness of sea surface temperature and ocean grade reasonably well. The average remainder model data misfits over versatile 6 month periods are 0.5 degreesC and 5 curium, respectively. The model has a limited skill in reproducing a lot of the off-equatorial wind anomalies. The residual model data misfit in pseudo fart stress anomaly is larger than 10 meter ( 2 ) south ( -2 ). Forecasts initialized from the assimilation merchandise are overall more naturalistic than those merely initialized from wind-forced ocean states. consistent improvement due to optimum low-level formatting is found for sea surface temperature and sea tied anomalies in the central-eastern Pacific and zonal pseudo tip stress anomaly in the cardinal Pacific, both in terms of root-mean-squared deviation from and correlation coefficient with the data. The adjustments of parameters in addition to initial state in a match context is found to be significant to improving the model data consistency during the assimilation and the prognosis. In finical, the estimated dredge and damping coefficients properly regulate the relative military capability of coerce and muffle of the ocean state of matter indeed as to fit the three types of observations during the assimilation ( low-level formatting ) period, which facilitates the development of a large-amplitude heating event during the bode. The study demonstrates the utility program of oceanic and atmospheric data to estimate initial express and model parameters in a copulate context, which is useful to the evaluation, improvement, and low-level formatting of El Nino-Southern Oscillation forecast models. Keywords: drag coefficient, dynamics, low-level formatting, prediction, low-lying, system, temperature, thermodynamics, tropical pacific, wind tension ECCO Products Used: URL: Other URLs:
Stammer, D; Chassignet, E (2000). Ocean State Estimation and Prediction in Support of Oceanographic Research, Oceanography, 2 (13), 51-56, 10.5670/oceanog.2000.34. Title: Ocean State Estimation and Prediction in Support of Oceanographic Research Type: Journal article Publication: oceanography Author(s): Stammer, D ; Chassignet, E Year: 2000 Formatted Citation: Stammer, D., and E. Chassignet, 2000 : ocean State Estimation and Prediction in Support of Oceanographic Research. Oceanography, 13 ( 2 ), 51-56, doi:10.5670/oceanog.2000.34 Abstract: Keywords: ECCO Products Used: URL: Other URLs:
Menemenlis, Dimitris; Chechelnitsky, Michael (2000). Error Estimates for an Ocean General Circulation Model from Altimeter and Acoustic Tomography Data, Monthly Weather Review, 3 (128), 763-778, 10.1175/1520-0493(2000)128<0763:EEFAOG>2.0.CO;2. Title: Error Estimates for an Ocean General Circulation Model from Altimeter and Acoustic Tomography Data Type: Journal article Publication: Monthly Weather Review Author(s): Menemenlis, Dimitris ; Chechelnitsky, Michael Year: 2000 Formatted Citation: Menemenlis, D., and M. Chechelnitsky, 2000 : error Estimates for an Ocean General Circulation Model from Altimeter and Acoustic Tomography Data. Monthly Weather Review, 128 ( 3 ), 763-778, doi:10.1175/1520-0493 ( 2000 ) 128 < 0763 : EEFAOG > 2.0.CO ; 2 Abstract: An offline set about is proposed for the estimate of exemplary and data erroneousness covariance matrices whereby covariance matrices of model data residuals are “ match ” to their theoretical expectations using conversant least-squares methods. This covariance matching approach is both a powerful diagnostic tool for addressing theoretical questions and an effective calculator for substantial data assimilation studies. Provided that model and data errors are independent, that error propagation is approximately analogue, and that an observability condition is met, it is in hypothesis possible to amply resolve covariance matrices for both model and data errors. In practice, however, ascribable to big uncertainties in sample distribution estimates of covariance matrices, the number of statistically significant parameters that can be estimated is two to three orders of magnitude smaller than the sum number of autonomous observations. The covariance equal approach is applied in the North Pacific ( 5°-60°N, 132°-252°E ) to TOPEX/Poseidon ocean degree anomaly data, acoustic imaging data from the Acoustic Thermometry of Ocean Climate Project, and a GCM. A reduce state analogue model that describes large-scale internal ( baroclinic ) error dynamics is constructed. Twin experiments suggest that altimetric data are ill suited to estimating the statistics of the vertical GCM erroneousness structure, but that such estimates can in hypothesis be obtained using acoustic data. The finical GCM integration exhibits a warming tendency relative to TOPEX/Poseidon data of ordain 1 centimeter yr−1 corresponding to a flower warming of up to 0.2°C yr−1 in the acoustic data at depths ranging from 50 to 200 m. At the annual cycle, GCM and TOPEX/Poseidon sea level anomaly are in phase, but GCM amplitude is 2 curium smaller, with the error confined above 200-m depth. After removal of trends and annual cycles, the low-frequency/wavenumber ( periods > 2 months, wavelengths > 16° ) TOPEX/Poseidon sea degree anomaly is rate 6 cm2. The GCM explains about 40 % of that variance. By covariance duplicate, it is estimated that 60 % of the GCM-TOPEX/Poseidon residual variation is consistent with the decreased express linear model. Keywords: ECCO Products Used: URL: http://journals.ametsoc.org/doi/abs/10.1175/1520-0493%282000%29128%3C0763%3AEEFAOG%3E2.0.CO%3B2 Other URLs:
McKinley, Galen A.; Follows, Michael J.; Marshall, John (2000). Interannual variability of the air-sea flux of oxygen in the North Atlantic, Geophysical Research Letters, 18 (27), 2933-2936, 10.1029/2000gl011492. Title: Interannual unevenness of the air-sea flux density of oxygen in the North Atlantic Type: Journal article Publication: Geophysical Research Letters Author(s): McKinley, Galen A. ; Follows, Michael J. ; Marshall, John Year: 2000 Formatted Citation: McKinley, G. A., M. J. Follows, and J. Marshall, 2000 : Interannual variability of the air-sea flow of oxygen in the North Atlantic. Geophys. Res. Lett., 27 ( 18 ), 2933-2936, doi:10.1029/2000gl011492 Abstract: In studies using timeseries observations of atmospheric O-2/N-2 to infer the destiny of fossil fuel CO2, it has been assumed that multi-year trends in observe O-2/N-2 are insensitive to interannual variability in air-sea fluxes of oxygen. We begin to address the robustness of this assumption by investigating the order of magnitude and mechanism of interannual variability in the flux of oxygen across the sea come on using a North Atlantic biogeochemical model. The model, based on the MIT ocean general circulation model, captures the crying patterns and seasonal hertz of nutrients and oxygen within the washbasin. The air-sea oxygen liquefy exhibits significant interannual unevenness in the North Atlantic, with a standard deviation ( 0.36 gram molecule thousand ( -2 ) yttrium ( -1 ) ) that is a large fraction of the entail ( 0.85 gram molecule megabyte ( -2 ) yttrium ( -1 ) ). This is chiefly a consequence of unevenness in winter convection in the subpolar coil. Keywords: cycle, energy, models, ocean, ratio ECCO Products Used: URL: Other URLs:
Stammer, D.; Davis, R.; Fu, L.-L.; Fukumori, I.; Giering, R.; Lee, T.; Marotzke, J.; Marshall, J.; Menemenlis, Dimitris; Niiler, P.; Wunsch, C.; Zlotnicki, V. (2000). Ocean state estimation in support of CLIVAR and GODAE, CLIVAR Exchanges, 3 (5), 3-5. Title: Ocean state estimate in support of CLIVAR and GODAE Type: Magazine article Publication: CLIVAR Exchanges Author(s): Stammer, D. ; Davis, R. ; Fu, L.-L. ; Fukumori, I. ; Giering, R. ; Lee, T. ; Marotzke, J. ; Marshall, J. ; Menemenlis, Dimitris ; Niiler, P. ; Wunsch, C. ; Zlotnicki, V. Year: 2000 Formatted Citation: Stammer, D. and Coauthors, 2000 : ocean state estimate in support of CLIVAR and GODAE. CLIVAR Exchanges, 5 ( 3 ), 3-5 pp. hypertext transfer protocol : //puddle.mit.edu/~mick/manuscripts.html. Abstract: Keywords: ECCO Products Used: ECCO-KFS ; ECCO-V0URL: http://puddle.mit.edu/~mick/manuscripts.html Other URLs:
Colosi, J A; Baggeroer, Arthur B; Birdsall, Theodore G; Clark, C; Cornuelle, Bruce D; Costa, D; Dushaw, Brian D.; Dzieciuch, Matthew A; Forbes, Andrew M G; Howe, Bruce M; Menemenlis, Dimitris; Mercer, James A; Metzger, K; Munk, Walter H; Spindel, Robert C; Worcester, Peter F; Wunsch, Carl I (1999). A review of recent results on ocean acoustic wave propagation in random media: basin scales, IEEE J. Ocean. Eng., 2 (24), 138-155, 10.1109/48.757267. Title: A review of recent results on ocean acoustic wave propagation in random media : river basin scales Type: Journal article Publication: IEEE J. Ocean. Eng. Author(s): Colosi, J A ; Baggeroer, Arthur B ; Birdsall, Theodore G ; Clark, C ; Cornuelle, Bruce D ; Costa, D ; Dushaw, Brian D. ; Dzieciuch, Matthew A ; Forbes, Andrew M G ; Howe, Bruce M ; Menemenlis, Dimitris ; Mercer, James A ; Metzger, K ; Munk, Walter H ; Spindel, Robert C ; Worcester, Peter F ; Wunsch, Carl I Year: 1999 Formatted Citation: Colosi, J. A. and Coauthors, 1999 : A review of recent results on ocean acoustic wave generation in random media : washbasin scales. IEEE J. Ocean. Eng., 24 ( 2 ), 138-155, doi:10.1109/48.757267 Abstract: In November 1994, the Acoustic Thermometry of Ocean Climate ( ATOC ) initiated the Acoustic Engineering Test ( AET ). acoustic fluctuations of low-frequency pulse generation at ranges of 1000 to 5000 kilometer were observed. analysis of the data revealed newfangled and unexpected results for the physics of ocean acoustic wave propagation in random media. Keywords: ECCO Products Used: URL: http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=757267 Other URLs:
Zhang, K Q; Marotzke, J (1999). The importance of open-boundary estimation for an Indian Ocean GCM-data synthesis, Journal of Marine Research, 2 (57), 305-334, 10.1357/002224099321618236. Title: The importance of open-boundary estimate for an indian Ocean GCM-data deduction Type: Journal article Publication: Journal of Marine Research Author(s): Zhang, K Q ; Marotzke, J Year: 1999 Formatted Citation: Zhang, K. Q., and J. Marotzke, 1999 : The importance of open-boundary appraisal for an indian Ocean GCM-data synthesis. Journal of Marine Research, 57 ( 2 ), 305-334, doi:10.1357/002224099321618236 Abstract: The amerind Ocean general circulation is estimated by fitting the MIT Ocean General Circulation Model to the annual hateful climatological hydrography and open force, using the exemplary and its computer-generated adjoint. open boundary conditions are implemented to the west of the Indonesian Archipelago and near 30S. The access simultaneously optimizes the initial conditions of the hydrographic fields, surface fluxes, and the open boundary conditions ( temperature, salt, and horizontal velocities ). Compared to former results obtained in a close world, the calculate speed field shows a marked improvement near the southerly limit, with a sanely impregnable Agulhas Current leaving the model domain. The indonesian throughflow ( ITF ) is estimated as 2.7 Sv ( 1 Sv is 10 ( 6 ) thousand ( 3 ) /s ) westward, which is on the low end of the range of previous estimates. The model is able to sharpen fronts in surface brininess, compared to climatology, and suggests that the humble coat brininess values in the easterly equatorial region get up from advection out of the Bay of Bengal quite than from the ITF. Consistent with the closed-domain results, the meridional overrule is dominated by a shallow ( above 500 meter ), wind-driven cellular telephone of 16 Sv maximal, which carries the majority of the southerly heat transport. We have defined generalizations of meridional hotness and fresh water transports appropriate in the presence of a throughflow. The estimate meridional heat enchant has a maximum of 0.8 PW at 12S, maximum fresh water enchant is 0.29 Sv south at 9S. The meridional transmit divergences are good balanced by the surface heat and fresh water fluxes, indicating near-steady express and minor charm of the ITF. Keywords: data assimilation, flows, fluxes, general-circulation model, heat-transport, hydrographic section, north-atlantic model, steady-state, throughflow, water ECCO Products Used: URL: Other URLs:
Dushaw, Brian D.; Howe, Bruce M; Mercer, James A; Spindel, Robert C; Baggeroer, Arthur B; Menemenlis, Dimitris; Wunsch, Carl I; Birdsall, Theodore G; Metzger, K; Clark, C; Colosi, J A; Curnuelle, B D; Dzieciuch, Matthew A; Munk, Walter H; Worcester, Peter F; Costa, D; Forbes, Andrew M G (1999). Multimegameter-range acoustic data obtained by bottom-mounted hydrophone arrays for measurement of ocean temperature, IEEE J. Ocean. Eng., 2 (24), 202-214, 10.1109/48.757271. Title: Multimegameter-range acoustic data obtained by bottom-mounted hydrophone arrays for measurement of ocean temperature Type: Journal article Publication: IEEE J. Ocean. Eng. Author(s): Dushaw, Brian D. ; Howe, Bruce M ; Mercer, James A ; Spindel, Robert C ; Baggeroer, Arthur B ; Menemenlis, Dimitris ; Wunsch, Carl I ; Birdsall, Theodore G ; Metzger, K ; Clark, C ; Colosi, J A ; Curnuelle, B D ; Dzieciuch, Matthew A ; Munk, Walter H ; Worcester, Peter F ; Costa, D ; Forbes, Andrew M G Year: 1999 Formatted Citation: Dushaw, B. D. and Coauthors, 1999 : Multimegameter-range acoustic data obtained by bottom-mounted hydrophone arrays for measurement of ocean temperature. IEEE J. Ocean. Eng., 24 ( 2 ), 202-214, doi:10.1109/48.757271 Abstract: Acoustic signals transmitted from the ATOC beginning on Pioneer Seamount off the coast of California have been received at versatile sites around the Pacific Basin since January 1996. We describe data obtained using bottom-mounted receivers, including U.S. Navy Sound Surveilance System arrays, at ranges up to 5 Mm from the Pioneer Seamount generator. stable identifiable beam arrivals are observed in several cases, but some receive arrays are not well suited to detecting the direct beam arrivals. At 5-Mm crop, travel-time variations at tidal frequencies ( about 50 ms peak to peak ) agree well with predicted values, providing confirmation of the acoustic measurements a well as the tidal model. On the longest and northernmost acoustic paths, the time series of resolve ray locomotion times show an annual cycle peak-to-peak variation of about 1 s and other fluctuations caused by natural oceanic unevenness. An annual bicycle is not apparent in travel times from shorter acoustic paths in the eastern Pacific, though only one realization of the annual cycle is available. The low-pass-filtered locomotion times are estimated to an accuracy of about 10 thousand. This travel-time doubt corresponds to errors in range- and depth-averaged temperature of merely a few millidegrees, while the annual peak-to-peak variation in temperature averaged horizontally over the acoustic way and vertically over the upper 1 kilometer of ocean is up to 0.5°C. Keywords: ECCO Products Used: URL: Other URLs:
Fukumori, I; Raghunath, R; Fu, L L; Chao, Y (1999). Assimilation of TOPEX/Poseidon altimeter data into a global ocean circulation model: How good are the results?, Journal of Geophysical Research-Oceans, C11 (104), 25647-25665, 10.1029/1999jc900193. Title: Assimilation of TOPEX/Poseidon altimeter data into a ball-shaped ocean circulation mannequin : How good are the results ? Type: Journal article Publication: Journal of Geophysical Research-Oceans Author(s): Fukumori, I ; Raghunath, R ; Fu, L L ; Chao, Y Year: 1999 Formatted Citation: Fukumori, I., R. Raghunath, L. L. Fu, and Y. Chao, 1999 : assimilation of TOPEX/Poseidon altimeter data into a ball-shaped ocean circulation model : How good are the results ? J. Geophys. Res. Ocean., 104 ( C11 ), 25647-25665, doi:10.1029/1999jc900193 Abstract: The feasibility of assimilating satellite altimetry data into a ball-shaped ocean cosmopolitan circulation model is studied. Three years of TOPEX/Poseidon data are analyzed using a global, three-dimensional, nonlinear crude equation model. The assimilation ‘s success is examined by analyzing its consistency and dependability measured by formal erroneousness estimates with respect to freelancer measurements. Improvements in model solution are demonstrated, in particular, properties not immediately measured. Comparisons are performed with sea level measured by tide gauges, subsurface temperatures and currents from moorings, and bottom atmospheric pressure measurements. Model representation errors dictate what can and can not be resolved by assimilation, and its identification is emphasized. Keywords: gulf-stream model, height, kalman filter, sea-surface, tropical pacific-ocean, variability, wind-stress ECCO Products Used: ECCO-KFS URL: Other URLs:
Hirose, Naoki; Fukumori, Ichiro; Yoon, Jong-Hwan (1999). Assimilation of TOPEX/POSEIDON Altimeter Data with a Reduced Gravity Model of the Japan Sea, Journal of Oceanography, 1 (55), 53-64, 10.1023/A:1007707405711. Title: Assimilation of TOPEX/POSEIDON Altimeter Data with a Reduced Gravity Model of the Japan Sea Type: Journal article Publication: Journal of Oceanography Author(s): Hirose, Naoki ; Fukumori, Ichiro ; Yoon, Jong-Hwan Year: 1999 Formatted Citation: Hirose, N., I. Fukumori, and J. Yoon, 1999 : assimilation of TOPEX/POSEIDON Altimeter Data with a Reduced Gravity Model of the Japan Sea. Journal of Oceanography, 55 ( 1 ), 53-64, doi:10.1023/A:1007707405711 Abstract: Keywords: Data assimilation, Japan Sea, Kalman filter, TOPEX/POSEIDON, reduced-gravity model, sea level ECCO Products Used: URL: http://dx.doi.org/10.1023/A%3A1007707405711 Other URLs:
Marotzke, J; Giering, R; Zhang, K Q; Stammer, D; Hill, C; Lee, T (1999). Construction of the adjoint MIT ocean general circulation model and application to Atlantic heat transport sensitivity, Journal of Geophysical Research-Oceans, C12 (104), 29529-29547, 10.1029/1999jc900236. Title: construction of the adjoint MIT ocean general circulation model and application to Atlantic heat transport sensitivity Type: Journal article Publication: Journal of Geophysical Research-Oceans Author(s): Marotzke, J ; Giering, R ; Zhang, K Q ; Stammer, D ; Hill, C ; Lee, T Year: 1999 Formatted Citation: Marotzke, J., R. Giering, K. Q. Zhang, D. Stammer, C. Hill, and T. Lee, 1999 : construction of the adjoint MIT ocean general circulation model and application to Atlantic heating system conveyance sensitivity. J. Geophys. Res. Ocean., 104 ( C12 ), 29529-29547, doi:10.1029/1999jc900236 Abstract: We first describe the principles and virtual considerations behind the calculator coevals of the adjoint to the Massachusetts Institute of Technology ocean cosmopolitan circulation model ( GCM ) using R. Giering ‘s software joyride Tangent-Linear and Adjoint Model Compiler ( TAMC ). The TAMC ‘s recipe for ( FORTRAN- ) line-by-line generation of adjoint code is explained by interpreting an adjoint model rigorously as the hustler that gives the sensitivity of the end product of a model to its input. then, the sensitivity of 1993 annual beggarly heat transport across 29 degrees N in the Atlantic, to the hydrography on January 1, 1993, is calculated from a ball-shaped solution of the GCM. The “ kinematic sensitivity ” to initial temperature variations is isolated, showing how the latter would influence estrus transportation if they did not affect the concentration and hence the flow. Over 1 year the heating system transport at 29 degrees N is influenced kinematically from regions up to 20 degrees upstream in the westerly boundary current and astir to 5 degrees upstream in the interior. In contrast, the dynamic influences of initial temperature ( and salt ) perturbations spread from american samoa far as the rim of the Labrador Sea to the 29 degrees N section along the western limit. The sensitivities calculated with the adjoint compare excellently to those from a disruption calculation with the dynamic model. Perturbations in initial interior salt influence meridional overturn and heat transmit when they have propagated to the western limit and can frankincense influence the integrated east-west density difference. Our results support the notion that limit monitor of meridional mass and hotness transports is feasible. Keywords: data assimilation, dynamics, indian-ocean, entail circulation, north-atlantic, steady-state ECCO Products Used: adjoint URL: Other URLs:
Fieguth, P; Menemenlis, Dimitris; Ho, T; Willsky, A; Wunsch, C (1998). Mapping Mediterranean Altimeter Data with a Multiresolution Optimal Interpolation Algorithm, Journal of Atmospheric and Oceanic Technology, 2 (15), 535-546, 10.1175/1520-0426(1998)015<0535:MMADWA>2.0.CO;2. Title: Mapping Mediterranean Altimeter Data with a Multiresolution Optimal Interpolation Algorithm Type: Journal article Publication: Journal of Atmospheric and Oceanic Technology Author(s): Fieguth, P ; Menemenlis, Dimitris ; Ho, T ; Willsky, A ; Wunsch, C Year: 1998 Formatted Citation: Fieguth, P., D. Menemenlis, T. Ho, A. Willsky, and C. Wunsch, 1998 : Mapping Mediterranean Altimeter Data with a Multiresolution Optimal Interpolation Algorithm. Journal of Atmospheric and Oceanic Technology, 15 ( 2 ), 535-546, doi:10.1175/1520-0426 ( 1998 ) 015 < 0535 : MMADWA > 2.0.CO ; 2 Abstract: A multiresolution optimum interpolation dodge is described and used to map the ocean floor anomaly of the Mediterranean Sea based on TOPEX/Poseidon and ERS-1 data. The principal advantages of the multiresolution scheme are its high computational efficiency, the necessity for denotative statistical models for the oceanographic signal and the measurement errors, and the production of mistake variances for all estimates at multiple scales. A stage set of Matlab-callable routines that implement the multiresolution scheme have been made available via anonymous FTP. The oceanographic sign is here modeled as a stationary 1/kμ work, where k is the horizontal wavenumber. Measurement noise is modeled as the sum of two freestanding random processes : a gaussian white noise process and a correlate process of a abject wavenumber representing the uncertainties in the orbital position of the satellite and in the atmospheric load corrections. The efficiency of the multiresolution system allowed the test of more than 16000 sets of speculate statistical anterior model parameters to determine the most probable parameters. Mapping results with and without gloomy wavenumber error corrections are presented and compared. Keywords: ECCO Products Used: URL: http://journals.ametsoc.org/doi/abs/10.1175/1520-0426%281998%29015%3C0535%3AMMADWA%3E2.0.CO%3B2 Other URLs:
Fukumori, I; Raghunath, R; Fu, L L (1998). Nature of global large-scale sea level variability in relation to atmospheric forcing: A modeling study, Journal of Geophysical Research-Oceans, C3 (103), 5493-5512, 10.1029/97jc02907. Title: nature of global large-scale ocean floor variability in relation to atmospheric impel : A model discipline Type: Journal article Publication: Journal of Geophysical Research-Oceans Author(s): Fukumori, I ; Raghunath, R ; Fu, L L Year: 1998 Formatted Citation: Fukumori, I., R. Raghunath, and L. L. Fu, 1998 : nature of global large-scale ocean level variability in relation to atmospheric coerce : A model learn. J. Geophys. Res. Ocean., 103 ( C3 ), 5493-5512, doi:10.1029/97jc02907 Abstract: The sexual intercourse between large-scale sea horizontal surface variability and ocean circulation is studied using a numerical model. A global primitive equation model of the ocean is forced by daily winds and climatological heat fluxes corresponding to the period from January 1992 to January 1994. The forcible nature of ocean level ‘s temporal role variability from periods of days to a year is examined on the basis of apparitional analyses of model results and comparisons with satellite altimetry and tide gauge measurements. The sketch elucidates and diagnoses the inhomogeneous physics of sea flush change in space and frequency domain. At midlatitudes, large-scale ocean horizontal surface unevenness is primarily ascribable to steric changes associated with the seasonal worker heating and cooling cycle of the surface layer. In comparison, changes in the tropics and high latitudes are chiefly wind driven. Wind-driven variability exhibits a solid latitudinal addiction in itself. Wind-driven changes are largely baroclinic in the tropics but barotropic at higher latitudes. Baroclinic changes are dominated by the annual harmonic of the beginning baroclinic modality and is largest off the equator ; variabilities associated with equatorial waves are smaller in comparison. Wind-driven barotropic changes exhibit a luminary enhancement over several abysmal plains in the Southern Ocean, which is probably due to resonant planetary wave modes in basins semienclosed by discontinuities in electric potential vorticity. differently, barotropic sea level changes are typically dominated by high frequencies with equally much as half the sum variance in periods shorter than 20 days, reflecting the frequency spectrum of scent try curl up. Implications of the findings with regards to analyzing observations and data acculturation are discussed. Keywords: data assimilation, fluctuations, general-circulation model, ocean circulation, pacific-ocean, satellite altimetry, open, wind-stress, world ocean ECCO Products Used: ECCO-KFS URL: Other URLs:
Lee, T; Marotzke, J (1998). Seasonal cycles of meridional overturning and heat transport of the Indian Ocean, Journal of Physical Oceanography, 5 (28), 923-943, 10.1175/1520-0485(1998)028<0923:scomoa>2.0.co;2. Title: Seasonal cycles of meridional overturn and heat transport of the indian Ocean Type: Journal article Publication: Journal of Physical Oceanography Author(s): Lee, T ; Marotzke, J Year: 1998 Formatted Citation: Lee, T., and J. Marotzke, 1998 : seasonal cycles of meridional revoke and hotness transport of the indian Ocean. Journal of Physical Oceanography, 28 ( 5 ), 923-943, doi:10.1175/1520-0485 ( 1998 ) 028 < 0923 : scomoa > 2.0.co ; 2 Abstract: A general circulation model of the indian Ocean is fitted to monthly average climatological temperatures, salinities, and surface fluxes using the adjoint method. Interannual unevenness is minimized by penalizing the temporal drift from one seasonal worker cycle to another during a biennial consolidation. The vector sum meridional overrule and heat transport display boastfully seasonal worker variations, with utmost amplitudes of 18 and 22 ( adam 10 ( 6 ) m ( 3 ) randomness ( -1 ) ) for the revolutionize and 1.8 and 1.4 ( adam 10 ( 15 ) W ) for hotness transport near 10 degrees S and 10 degrees N, respectively. A dynamic decomposition of the overthrow and hotness transport shows that the rime-varying Ekman menstruation plus its barotropic compensation can explain a large parr of the seasonal variations in overturning and inflame transmit. The maximum variations at 10 degrees N and 10 degrees S are associated with monsoon reversal over the northern indian Ocean and changes of the easterlies over the southerly amerind Ocean. An external manner with variable topography has a moderate contribution where the Somali Current and the match coil overrule focus seasonally. contribution from upright shear ( thermal hoist and ageostrophic fleece ) is prevailing near the southerly boundary and big near the Somali Current latitudes. The prevailing balance in the zonally integrated heat budget is between inflame storage switch and heating system transport overlap except south of 15 degrees S. Optimization with seasonal forcings improves estimates of ocean airfoil temperatures, but the annual average revolutionize and heat transport are very alike to previous results with annual intend forcings. The annual average heat tape drive consists of roughly equal contributions from time-mean and time-varying fields of meridional velocities and temperatures in the northerly indian Ocean, indicating a meaning rectification to the hear ecstasy due to the time-varying fields. The time-mean and time-varying contributions are primarily due to the overrule and horizontal coil, respectively. inclusion of TOPEX data enhances the seasonal worker cycles of the estimated overrule and inflame transportation in the central amerind Ocean importantly and improves the estimated equatorial zonal flows but leads to unrealistic estimates of the speed structure near the Indonesian Throughflow region, most probable outstanding to the deficiencies in the lateral pass boundary conditions. Keywords: cryptic currents, dynamics, fluxes, monsoon, somali stream, confederacy, throughflow, variability ECCO Products Used: URL: Other URLs:
Baggeroer, A. B.; Birdsall, T. G.; Clark, C.; Colosi, J. A.; Cornuelle, B. D.; Costa, D.; Dushaw, Brian D.; Dzieciuch, M.; Forbes, A. M. G.; Hill, C.; Howe, B. M.; Marshall, J.; Menemenlis, Dimitris; Mercer, J. A.; Metzger, K.; Munk, W.; Spindel, R. C.; Stammer, D.; Worcester, P. F.; Wunsch, C. (1998). Ocean Climate Change: Comparison of Acoustic Tomography, Satellite Altimetry, and Modeling, Science, 5381 (281), 1327-1332, 10.1126/science.281.5381.1327. Title: Ocean Climate Change : comparison of Acoustic Tomography, Satellite Altimetry, and Modeling Type: Journal article Publication: skill Author(s): Baggeroer, A. B. ; Birdsall, T. G. ; Clark, C. ; Colosi, J. A. ; Cornuelle, B. D. ; Costa, D. ; Dushaw, Brian D. ; Dzieciuch, M. ; Forbes, A. M. G. ; Hill, C. ; Howe, B. M. ; Marshall, J. ; Menemenlis, Dimitris ; Mercer, J. A. ; Metzger, K. ; Munk, W. ; Spindel, R. C. ; Stammer, D. ; Worcester, P. F. ; Wunsch, C. Year: 1998 Formatted Citation: Baggeroer, A. B. and Coauthors, 1998 : ocean Climate Change : comparison of Acoustic Tomography, Satellite Altimetry, and Modeling. Science, 281 ( 5381 ), 1327-1332, doi:10.1126/science.281.5381.1327 Abstract: Comparisons of gyre-scale acoustic and send thermal measurements of heat subject in the Pacific Ocean, satellite altimeter measurements of sea surface altitude, and results from a general circulation model show that alone about one-half of the seasonal and year-to-year changes in sea horizontal surface are attributable to thermal expansion. Interpreting climate change signals from fluctuations in sea level is consequently complicated. The annual cycle of estrus flux is 150 ± 25 watt per square meter ( peak-to-peak, corresponding to a 0.2°C vertically average temperature bicycle ) ; an interannual change of similar magnitude is besides detected. meteorologic estimates of come on heat flux, if accurate, require a large seasonal bicycle in the advective heat magnetic field. Keywords: ECCO Products Used: URL: http://science.sciencemag.org/content/281/5381/1327.abstract Other URLs: hypertext transfer protocol : //www.sciencemag.org/cgi/doi/10.1126/science.281.5381.1327
Menemenlis, Dimitris; Fieguth, Paul W; Wunsch, Carl I; Willsky, Alan S (1997). Adaptation of a fast optimal interpolation algorithm to the mapping of oceanographic data, J. Geophys. Res. C Ocean., C5 (102), 10573-10584, 10.1029/97JC00697. Title: Adaptation of a fast optimum interjection algorithm to the map of oceanographic data Type: Journal article Publication: J. Geophys. Res. C Ocean. Author(s): Menemenlis, Dimitris ; Fieguth, Paul W ; Wunsch, Carl I ; Willsky, Alan S Year: 1997 Formatted Citation: Menemenlis, D., P. W. Fieguth, C. I. Wunsch, and A. S. Willsky, 1997 : adaptation of a fast optimum interpolation algorithm to the mapping of oceanographic data. J. Geophys. Res. C Ocean., 102 ( C5 ), 10573-10584, doi:10.1029/97JC00697 Abstract: A firm, recently developed, multiscale optimum interpolation algorithm has been adapted to the map of hydrographic and early oceanographic data. This algorithm produces solution and error estimates which are consistent with those obtained from claim least squares methods, but at a small divide of the computational cost. Problems whose solution would be wholly impractical using accurate least squares, that is, problems with tens or hundreds of thousands of measurements and estimate grid points, can easily be solved on a small workstation using the multiscale algorithm. In line to methods previously proposed for solving large least squares problems, our approach provides estimate erroneousness statistics while permitting long-range correlations, using all measurements, and permitting arbitrary measurement locations. The multiscale algorithm itself, published elsewhere, is not the focus of this wallpaper. however, the algorithm requires statistical models having a identical particular multiscale structure ; it is the development of a class of multiscale statistical models, appropriate for oceanographic map problems, with which we concern ourselves in this newspaper. The set about is illustrated by mapping temperature in the northeastern Pacific. The number of hydrographic stations is preserve measuredly minor to show that multiscale and accurate least squares results are comparable. A fortune of the data were not used in the psychoanalysis ; these data serve to test the multiscale estimates. A major advantage of the present approach is the ability to repeat the estimate operation a large act of times for sensitivity studies, parameter appraisal, and exemplary testing. We have made available by anonymous Ftp a hardened of MATLAB-callable routines which implement the multiscale algorithm and the statistical models developed in this paper. Keywords: doi:10.1029/97JC00697, hypertext transfer protocol : //dx.doi.org/10.1029/97JC00697 ECCO Products Used: URL: Other URLs:
Marshall, John; Adcroft, Alistair J.; Hill, Chris; Perelman, Lev; Heisey, Curt (1997). A finite-volume, incompressible Navier Stokes model for studies of the ocean on parallel computers, Journal of Geophysical Research: Oceans, C3 (102), 5753-5766, 10.1029/96JC02775. Title: A finite-volume, incompressible Navier Stokes model for studies of the ocean on twin computers Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Marshall, John ; Adcroft, Alistair J. ; Hill, Chris ; Perelman, Lev ; Heisey, Curt Year: 1997 Formatted Citation: Marshall, J., A. J. Adcroft, C. Hill, L. Perelman, and C. Heisey, 1997 : A finite-volume, incompressible Navier Stokes exemplar for studies of the ocean on twin computers. J. Geophys. Res. Ocean., 102 ( C3 ), 5753-5766, doi:10.1029/96JC02775 Abstract: The numerical execution of an ocean model based on the incompressible Navier Stokes equations which is designed for studies of the ocean circulation on horizontal scales less than the depth of the ocean right up to global scale is described. A ”pressure correction ” method is used which is solved as a Poisson equality for the pressure field with Neumann limit conditions in a geometry american samoa complicated as that of the ocean basins. A major objective of the study is to make this anastrophe, and hence nonhydrostatic ocean mold, effective on analogue computers. The pressure field is separated into surface, hydrostatic, and nonhydrostatic components. first, as in hydrostatic models, a two-dimensional trouble is inverted for the open blackmail which is then made function of in the three-dimensional inversion for the nonhydrostatic imperativeness. Preconditioned conjugate-gradient iteration is used to invert symmetrical elliptic operators in both two and three dimensions. physically motivate preconditioners are designed which are effective at reducing calculation and minimizing communication between processors. Our method exploits the fact that as the horizontal scale of the motion becomes very much larger than the vertical plate, the motion becomes more and more hydrostatic and the three-dimensional Poisson operator becomes increasingly anisotropic and dominated by the vertical axis. accordingly, a preconditioner is used which, in the hydrostatic limit, is an demand built-in of the Poisson operator and so leads to a individual algorithm that seamlessly moves from nonhydrostatic to hydrostatic limits. frankincense in the hydrostatic limit the mannequin is ”fast, ” competitive with the fastest ocean climate models in function today based on the hydrostatic archaic equations. But as the resolution is increased, the model dynamics asymptote smoothly to the Navier Stokes equations and so can be used to address small-scale processes. A ”finite-volume ” approach is employed to discretize the model in space in which place fluxes are defined normal to faces that delineate the volumes. The method makes possible a novel discussion of the boundary in which cells abutting the bottom or slide may take on irregular shapes and be ”shaved ” to fit the limit. The algorithm can conveniently exploit massively parallel computers and suggests a sphere decomposition which allocates vertical column of ocean to each process unit. The resulting model, which can handle randomly building complex geometry, is efficient and scalable and has been mapped on to massively parallel multiprocessors such as the Connection Machine ( CM5 ) using data-parallel FORTRAN and the Massachusetts Institute of Technology data-flow machine MONSOON using the implicitly analogue linguistic process Id. Keywords: equations, sigma ECCO Products Used: URL: http://doi.wiley.com/10.1029/96JC02775 Other URLs:
Marshall, J; Hill, C; Perelman, L; Adcroft, Alistair J. (1997). Hydrostatic, quasi-hydrostatic, and nonhydrostatic ocean modeling, Journal of Geophysical Research-Oceans, C3 (102), 5733-5752, 10.1029/96jc02776. Title: Hydrostatic, quasi-hydrostatic, and nonhydrostatic ocean model Type: Journal article Publication: Journal of Geophysical Research-Oceans Author(s): Marshall, J ; Hill, C ; Perelman, L ; Adcroft, Alistair J. Year: 1997 Formatted Citation: Marshall, J., C. Hill, L. Perelman, and A. J. Adcroft, 1997 : hydrostatic, quasi-hydrostatic, and nonhydrostatic ocean model. J. Geophys. Res. Ocean., 102 ( C3 ), 5733-5752, doi:10.1029/96jc02776 Abstract: Ocean models based on coherent hydrostatic, quasi-hydrostatic, and nonhydrostatic equation sets are formulated and discussed. The quasi-hydrostatic and nonhydrostatic sets are more accurate than the wide used hydrostatic primitive equations. Quasi-hydrostatic models relax the precise balance between gravity and pressure gradient forces by including in a consistent manner cosine-of-latitude Coriolis terms which are neglected in archaic equation models. Nonhydrostatic models employ the full incompressible Navier Stokes equations ; they are required in the study pf small-scale phenomena in the ocean which are not in hydrostatic balance. We outline a solution scheme for the Navier Stokes model on the sphere that performs efficiently across the unharmed range of scales in the ocean, from the convective scale to the global scale, and then leads to a model of great versatility. In ; he hydrostatic limit the Navier Stokes ‘ model involves no more computational campaign than those models which assume rigorous hydrostatic balance on all scales. The scheme is illustrated in simulations of testing ground experiments in rotating convection on scales of a few centimeters, simulations of convective and baroclinic instability of the mix layer on the 1- to 10-km plate, and simulations of the ball-shaped circulation of the ocean. Keywords: equations ECCO Products Used: URL: Other URLs:
Menemenlis, Dimitris; Wunsch, Carl I (1997). Linearization of an oceanic general circulation model for data assimilation and climate studies, J. Atmos. Ocean. Technol., 6 (14), 1420-1443, 10.1175/1520-0426(1997)014<1420:LOAOGC>2.0.CO;2. Title: Linearization of an oceanic general circulation model for data assimilation and climate studies Type: Journal article Publication: J. Atmos. Ocean. Technol. Author(s): Menemenlis, Dimitris ; Wunsch, Carl I Year: 1997 Formatted Citation: Menemenlis, D., and C. I. Wunsch, 1997 : Linearization of an oceanic general circulation model for data assimilation and climate studies. J. Atmos. Ocean. Technol., 14 ( 6 ), 1420-1443, doi:10.1175/1520-0426 ( 1997 ) 014 < 1420 : LOAOGC > 2.0.CO ; 2 Abstract: A recipe for the linearization and express decrease of a general circulation model ( GCM ) is evaluated in a North Pacific quiz river basin. The underlying assumption is that modern GCMs are, or will become, sufficiently accurate so that large-scale differences with the real ocean are small and have linear physics. Model Green ‘s functions are used to construct a reduced-order linear model that compares favorably with the large-scale response of the GCM away from the western limit. In a numeric example, the analogue model is applied to the estimate of the large-scale internal structure of a simulate ocean using pseudotomographic and altimetric measurements. The sensitivity of the solution to a priori statistical assumptions is analyzed. several algorithmic improvements are explored to render the appraisal procedure more efficient, more accurate, and easier to implement than in previous studies. Keywords: ECCO Products Used: URL: Other URLs:
Lee, Tong; Marotzke, Jochem (1997). Inferring meridional mass and heat transports of the Indian Ocean by fitting a general circulation model to climatological data, Journal of Geophysical Research: Oceans, C5 (102), 10585-10602, 10.1029/97JC00464. Title: Inferring meridional bulk and estrus transports of the indian Ocean by fitting a general circulation model to climatological data Type: Journal article Publication: Journal of Geophysical Research : Oceans Author(s): Lee, Tong ; Marotzke, Jochem Year: 1997 Formatted Citation: Lee, T., and J. Marotzke, 1997 : Inferring meridional mass and heat transports of the indian Ocean by fitting a general circulation exemplar to climatological data. J. Geophys. Res. Ocean., 102 ( C5 ), 10585-10602, doi:10.1029/97JC00464 Abstract: The meridional overrule and heat transport of the indian Ocean are studied by fitting the steady state dynamics of a general circulation model ( GCM ) to climatological annual mean temperatures, salinities, and surface forcings using the GCM and its adjoint. By estimating target temperatures and salinities near the artificially close side boundaries as part of the optimization procedure, a sweetheart solution that is consistent with climatological data within limits of experimental errors is found. The vector sum meridional revolutionize is vigorous ( 14 Sv ; 1 Sv = 10 ( 6 ) megabyte ( 3 ) /s ) alone in the upper berth 1000 m. The estimate deep inflow entering the indian Ocean from the south is weak. Requiring a big net north inflow at depth does not result in potent inferior upwelling but leads to unrealistically large baroclinic batch exchange and entail vertical mix near the Indonesian throughflow area. The shallow overturn is the main carrier of the south hotness transmit, which has a maximum of 0.8 PW ( 1 PW = 10 ( 15 ) W ) near 15 degrees S. Wind push plays a winder function in driving the estimated revoke of the indian Ocean. This result is in disagreement with previous interpretations about the central character of surface heat flux in driving a vigorous deep overturn of the indian Ocean. Keywords: data assimilation, dynamics, north-atlantic, steady-state ECCO Products Used: URL: http://doi.wiley.com/10.1029/97JC00464 Other URLs:
Menemenlis, Dimitris; Webb, Tony; Wunsch, Carl I; Send, Uwe; Hill, Christopher N (1997). Basin-scale ocean circulation from combined altimetric, tomographic and model data, Nature, 6617 (385), 618-621, 10.1038/385618a0. Title: Basin-scale ocean circulation from combined altimetric, tomographic and model data Type: Generic Publication: nature Author(s): Menemenlis, Dimitris ; Webb, Tony ; Wunsch, Carl I ; Send, Uwe ; Hill, Christopher N Year: 1997 Formatted Citation: Menemenlis, D., T. Webb, C. I. Wunsch, U. Send, and C. N. Hill, 1997 : Basin-scale ocean circulation from combined altimetric, tomographic and model data. nature, 385 ( 6617 ), 618-621 pp. doi:10.1038/385618a0. Abstract: The ocean stores and transports huge quantities of heat, clean water, carbon and other materials, and its circulation plays an important function in determining both the Earth ‘s climate and cardinal processes in the biosphere, Understanding the exploitation of climate and important biological cycles consequently requires detail cognition of ocean circulation and its transport properties, This can not be achieved entirely through model, but must involve accurate observations of the spatio-temporal evolution of the ball-shaped oceanic flow field. Estimates of oceanic flow are presently made on the footing of space-borne measurements of the sea surface, and monitor of the ocean interior. Satellite altimetry and acoustic imaging are complementary for this purpose ( 1 ), as the former provides detail horizontal coverage of the open, and the latter the necessity vertical sampling of the inside. High-quality acoustic-tomographic ( 2 ) and altimetric ( 3 ) data are immediately available to test the aggregate ability of these technologies for estimating oceanic flows. here we demonstrate that, with the aid of state-of-the-art numeral models, it is possible to recover from these data a detail spatio-temporal record of flow over basin-scale volumes of fluent. Our confront results are restricted to the Mediterranean Sea, but the method described here provides a powerful joyride for studying oceanic circulation global. Keywords: ECCO Products Used: URL: http://dx.doi.org/10.1038/385618a0 Other URLs:
Menemenlis, Dimitris; Stammer, Detlef; Wunsch, Carl; Hill, Chris; Marshall, John (1996). Comparison of ATOC heat content estimates with combined estimates from a general circulation model and TOPEX/POSEIDON altimetry, The Journal of the Acoustical Society of America, 4 (100), 2581-2581, 10.1121/1.417523. Title: Comparison of ATOC heat contented estimates with combined estimates from a general circulation model and TOPEX/POSEIDON altimetry Type: Journal article Publication: The Journal of the Acoustical Society of America Author(s): Menemenlis, Dimitris ; Stammer, Detlef ; Wunsch, Carl ; Hill, Chris ; Marshall, John Year: 1996 Formatted Citation: Menemenlis, D., D. Stammer, C. Wunsch, C. Hill, and J. Marshall, 1996 : comparison of ATOC heat content estimates with blend estimates from a cosmopolitan circulation model and TOPEX/POSEIDON altimetry. The Journal of the Acoustical Society of America, 100 ( 4 ), 2581-2581, doi:10.1121/1.417523 Abstract: Keywords: ECCO Products Used: URL: http://asa.scitation.org/doi/10.1121/1.417523 Other URLs:
Fieguth, Paul W; Willsky, Alan S; Menemenlis, Dimitris; Wunsch, Carl I (1996). A general multiresolution approach to the estimation of dense fields in remote sensing, ICIP’96 1996 IEEE Int. Conf. Image Process. (2), 609-612. Title: A general multiresolution access to the estimate of dense fields in outside detection Type: Journal article Publication: ICIP’96 1996 IEEE Int. Conf. Image Process. Author(s): Fieguth, Paul W ; Willsky, Alan S ; Menemenlis, Dimitris ; Wunsch, Carl I Year: 1996 Formatted Citation: Fieguth, P. W., A. S. Willsky, D. Menemenlis, and C. I. Wunsch, 1996 : A general multiresolution access to the appraisal of dense fields in distant detection. ICIP’96 1996 IEEE Int. Conf. Image Process., 2, 609-612 Abstract: A debauched multiscale optimum interpolation algorithm has been adapted to the map of hydrographic and other oceanographic data. This multiscale algorithm produces solution and error estimates which are reproducible with those obtained from accurate least-squares methods, but at a modest fraction of the computational monetary value. Problems whose solution would be wholly airy using exact least-squares, that is problems with tens or hundreds of thousands of measurements and estimate grid points, can well be solved on a small workstation using the multiscale algorithm. reverse to methods previously proposed for solving large least-squares problems, the multiscale approach provides error statistics while permitting long-range correlations, using all measurements, and permitting arbitrary measurement locations. A set of MATLAB-callable routines which implements the multiscale algorithm and reproduces the results obtained in this paper are available by anonymous FTP ; see the last section of this newspaper for details. Keywords: ECCO Products Used:

URL: https://ieeexplore.ieee.org/document/560937 Other URLs:
Morrison, Adele K. ; Waugh, Darryn W. ; Hogg, Andrew McC. ; Jones, Daniel C. ; Abernathey, Ryan P. ( 2022 )., Annual Review of Marine Science, 1 ( 14 ), 405-430, 10.1146/annurev-marine-010419-011012.Abernathey, Ryan ; Gnanadesikan, Anand ; Pradal, Marie-Aude ; Sundermeyer, Miles A. ( 2022 )., Ocean Mixing, 215-256, 10.1016/B978-0-12-821512-8.00016-5.Gula, Jonathan ; Taylor, John ; Shcherbina, Andrey ; Mahadevan, Amala ( 2022 )., Ocean Mixing, 181-214, 10.1016/B978-0-12-821512-8.00015-3.Fox-Kemper, Baylor ; Johnson, Leah ; Qiao, Fangli ( 2022 )., Ocean Mixing, 65-94, 10.1016/B978-0-12-821512-8.00011-6.Team, International Altimetry ( 2021 )., 25 Years of Progress in Radar Altimetry, hypertext transfer protocol : //doi.org/10.1016/j.asr.2021.01.022.Wang, Jie ; Bai, Xuezhi ; Leng, Hengling ( 2021 )., Journal of Oceanology and Limnology, 10.1007/s00343-021-0308-6.Rossi, Federico ; Branch, Andrew ; Schodlok, Michael P. ; Stanton, Timothy ; Fenty, Ian G. ; Hook, Joshua Vander ; Clark, Evan B. ( 2021 )., 2021 IEEE/RSJ International Conference on Intelligent Robots and Systems ( IROS ), 8657-8664, 10.1109/IROS51168.2021.9635987.Pendleton, Simon ; Condron, Alan ; Donnelly, Jeffrey ( 2021 )., Communications Earth & Environment, 1 ( 2 ), 152, 10.1038/s43247-021-00228-1.Ashley, Kate E. ; McKay, Robert ; Etourneau, Johan ; Jimenez-Espejo, Francisco J. ; Condron, Alan ; Albot, Anna ; Crosta, Xavier ; Riesselman, Christina ; Seki, Osamu ; Massé, Guillaume ; Golledge, Nicholas R. ; Gasson, Edward ; Lowry, Daniel P. ; Barrand, Nicholas E. ; Johnson, Katelyn ; Bertler, Nancy ; Escutia, Carlota ; Dunbar, Robert ; Bendle, James A. ( 2021 )., Climate of the Past, 1 ( 17 ), 1-19, 10.5194/cp-17-1-2021.Xi Liang, Chengyan Liu, Lejiang Yu, Martin Losch, Lujun Zhang, Xichen Li, Fu Zhao, and Zhongxiang Tian ( 2021 )., Journal of Climate, 1-52, 10.1175/JCLI-D-21-0376.1.Bingham, Frederick M. ; Brodnitz, Susannah ( 2021 )., Ocean Science, 5 ( 17 ), 1437-1447, 10.5194/os-17-1437-2021.Michaelovitch de Mahiques, Michel ; Violante, Roberto ; Franco-Fraguas, Paula ; Burone, Leticia ; Barbedo Rocha, Cesar ; Ortega, Leonardo ; Felicio do Santos, Rosangela ; Mi Kim, Bianca Sung ; Lopes Figueira, Rubens Cesar ; Caruso Bícego, Marcia ( 2021 )., Ocean Science, 5 ( 17 ), 1213-1229, 10.5194/os-17-1213-2021.Takahashi, Naoya ; Richards, Kelvin J. ; Schneider, Niklas ; Annamalai, H. ; Hsu, Wei-Ching ; Nonaka, Masami ( 2021 )., Journal of Geophysical Research : Oceans, 11 ( 126 ), 10.1029/2021JC017763.Zhai, Yujia ; Yang, Jiayan ; Wan, Xiuquan ; Zou, Sijia ( 2021 )., Geophysical Research Letters, 24 ( 48 ), 10.1029/2021GL095615.Hu, Zifeng ; Li, Lan ; Zhao, Jun ; Wang, Dongxiao ( 2021 )., Remote Sensing, 1 ( 14 ), 14, 10.3390/rs14010014.Jacques, Guy ; Tréguer, Paul ; Mercier, Herlé ( 2021 ) .Shi, Jia-Rui ; Talley, Lynne D. ; Xie, Shang-Ping ; Peng, Qihua ; Liu, Wei ( 2021 )., Nature Climate Change, 12 ( 11 ), 1090-1097, 10.1038/s41558-021-01212-5.Guimbard, Sébastien ; Reul, Nicolas ; Sabia, Roberto ; Herlédan, Sylvain ; Khoury Hanna, Ziad El ; Piollé, Jean-Francois ; Paul, Frédéric ; Lee, Tong ; Schanze, Julian J. ; Bingham, Frederick M. ; Le Vine, David ; Vinogradova-Shiffer, Nadya ; Mecklenburg, Susanne ; Scipal, Klaus ; Laur, Henri ( 2021 )., Remote Sensing, 22 ( 13 ), 4600, 10.3390/rs13224600.Cheng, Yuan ; Xia, Menglian ; Qiao, Gang ; Li, Yanjun ; Hai, Gang ; Lv, Da ( 2021 )., International Journal of Applied Earth Observation and Geoinformation ( 105 ), 102612, 10.1016/j.jag.2021.102612.Hyun, Sangwon ; Mishra, Aditya ; Follett, Christopher L. ; Jonsson, Bror ; Kulk, Gemma ; Forget, Gael ; Racault, Marie-Fanny ; Jackson, Thomas ; Dutkiewicz, Stephanie ; Müller, Christian L. ; Bien, Jacob ( 2021 ) .Parazoo, Nicholas C. ; Bowman, Kevin W. ; Baier, Bianca C. ; Liu, Junjie ; Lee, Meemong ; Kuai, Le ; Shiga, Yoichi ; Baker, Ian ; Whelan, Mary E. ; Feng, Sha ; Krol, Maarten ; Sweeney, Colm ; Runkle, Benjamin R. ; Tajfar, Elahe ; Davis, Kenneth J. ( 2021 )., Global Biogeochemical Cycles, 10 ( 35 ), 10.1029/2021GB006956.Zhou, Li ; Wang, Qiang ; Mu, Mu ; Zhang, Kun ( 2021 )., Journal of Geophysical Research : Oceans, 12 ( 126 ), 10.1029/2021JC017899.Liang, X. ; Li, X. ; Bi, H. ; Losch, M. ; Gao, Y. ; Zhao, F. ; Tian, Z. ; Liu, C. ( 2021 )., Journal of Climate, 1-56, 10.1175/JCLI-D-21-0199.1.Garabato, Alberto C. Naveira ; Yu, Xiaolong ; Callies, Jörn ; Barkan, Roy ; Polzin, Kurt L. ; Frajka-Williams, Eleanor E. ; Buckingham, Christian E. ; Griffies, Stephen M. ( 2021 )., Journal of Physical Oceanography, 10.1175/JPO-D-21-0099.1.Wang, Tianyu ; Du, Yan ; Wang, Minyang ( 2021 )., Journal of Physical Oceanography, 10.1175/JPO-D-20-0287.1.Stewart, Andrew L. ; Chi, Xiaoyang ; Solodoch, Aviv ; Hogg, Andrew McC. ( 2021 )., Geophysical Research Letters, 17 ( 48 ), 10.1029/2021GL094569.Fok, Hok Sum ; Ma, Zhongtian ( 2021 )., Global and Planetary Change ( 207 ), 103686, 10.1016/j.gloplacha.2021.103686.Munday, David R. ; Zhai, Xiaoming ; Harle, James ; Coward, Andrew C. ; Nurser, A.J. George ( 2021 )., Ocean Modelling ( 168 ), 101891, 10.1016/j.ocemod.2021.101891.Harvey, T. C. ; Hamlington, B. D. ; Frederikse, T. ; Nerem, R. S. ; Piecuch, C. G. ; Hammond, W. C. ; Blewitt, G. ; Thompson, P. R. ; Bekaert, D. P. S. ; Landerer, F. W. ; Reager, J. T. ; Kopp, R. E. ; Chandanpurkar, H. ; Fenty, I. ; Trossman, D. ; Walker, J. S. ; Boening, C. ( 2021 )., Communications Earth & Environment, 1 ( 2 ), 233, 10.1038/s43247-021-00300-w.Kumar, Anurag ; Bhatla, R. ( 2021 )., Modeling earth Systems and Environment, 10.1007/s40808-021-01321-2.Sommeria-Klein, Guilhem ; Watteaux, Romain ; Ibarbalz, Federico M. ; Pierella Karlusich, Juan José ; Iudicone, Daniele ; Bowler, Chris ; Morlon, Hélène ( 2021 )., Science, 6567 ( 374 ), 594-599, 10.1126/science.abb3717.Love, Ryan ; Andres, Heather J. ; Condron, Alan ; Tarasov, Lev ( 2021 )., Climate of the Past, 6 ( 17 ), 2327-2341, 10.5194/cp-17-2327-2021.Yassin, Houssam ; Griffies, Stephen M. ( 2021 ) .Yue Wu, Xiao-Tong Zheng, Qi-Wei Sun, Yu Zhang, Yan Du, and Lin Liu ( 2021 )., Journal of Climate, 19 ( 34 ), 7927-7942, hypertext transfer protocol : //doi.org/10.1175/JCLI-D-21-0122.1.Al-Shehhi, Maryam R. ; Song, Hajoon ; Scott, Jeffery ; Marshall, John ( 2021 )., Journal of Physical Oceanography, 10.1175/JPO-D-20-0249.1.Menezes, Viviane V. ( 2021 )., Progress in Oceanography ( 199 ), 102697, 10.1016/j.pocean.2021.102697.Bingham, Frederick M. ; Brodnitz, Susannah ; Fournier, Severine ; Ulfsax, Karly ; Hayashi, Akiko ; Zhang, Hong ( 2021 )., Remote Sensing, 21 ( 13 ), 4410, 10.3390/rs13214410.Wu, Zhen ; Dutkiewicz, Stephanie ; Jahn, Oliver ; Sher, Daniel ; White, Angelicque ; Follows, Michael J. ( 2021 )., Global Biogeochemical Cycles, 9 ( 35 ), 10.1029/2021GB006941.Wickramage, C. H. ; Wang, Weiqiang ; Arulananthan, K. ; Jayathilake, Ruchira ( 2021 )., Ocean Dynamics, 10.1007/s10236-021-01477-6.Jones, Daniel C. ; Ceia, Filipe R. ; Murphy, Eugene ; Delord, Karine ; Furness, Robert W. ; Verdy, Ariane ; Mazloff, Matthew ; Phillips, Richard A. ; Sagar, Paul M. ; Sallée, ( 2021 )., Global Change Biology, gcb.15839, 10.1111/gcb.15839.Rao, Devanarayana R.M. ; Tandon, Neil F. ( 2021 )., Journal of Geophysical Research : Oceans, 10.1029/2021JC017509.Nakayama, Yoshihiro ; Cai, Cilan ; Seroussi, Helene ( 2021 )., Geophysical Research Letters, 18 ( 48 ), 10.1029/2021GL093923.Meng, Ze ; Zhou, Lei ; Murtugudde, Raghu ; Yang, Qingxuan ; Pujiana, Kandaga ; Xi, Jingyuan ( 2021 )., Climate Dynamics, 10.1007/s00382-021-05951-1.Yu, Xiaolong ; Ponte, Aurélien L. ; Lahaye, Noé ; Caspar-Cohen, Zoé ; Menemenlis, Dimitris ( 2021 )., Journal of Geophysical Research : Oceans, 10.1029/2021JC017422.Nakayama, Yoshihiro ; Menemenlis, Dimitris ; Wang, Ou ; Zhang, Hong ; Fenty, Ian ; Nguyen, An T. ( 2021 )., Geoscientific Model Development, 8 ( 14 ), 4909-4924, 10.5194/gmd-14-4909-2021.Bingham, Frederick M. ; Fournier, Severine ; Brodnitz, Susannah ; Ulfsax, Karly ; Zhang, Hong ( 2021 )., Remote Sensing, 15 ( 13 ), 2995, 10.3390/rs13152995.Di, Jiankai ; Ma, Chunyong ; Chen, Ge ( 2021 )., Journal of Ocean University of China, 5 ( 20 ), 1121-1135, 10.1007/s11802-021-4664-9.Chi, Jianwei ; Qu, Tangdong ; Du, Yan ; Qi, Jifeng ; Shi, Ping ( 2021 )., Climate Dynamics, 10.1007/s00382-021-05911-9.Fukumori, Ichiro ; Wang, Ou ; Fenty, Ian ( 2021 )., Journal of Physical Oceanography, 10.1175/JPO-D-21-0069.1.Solomon, Amy ; Heuzé, Céline ; Rabe, Benjamin ; Bacon, Sheldon ; Bertino, Laurent ; Heimbach, Patrick ; Inoue, Jun ; Iovino, Doroteaciro ; Mottram, Ruth ; Zhang, Xiangdong ; Aksenov, Yevgeny ; McAdam, Ronan ; Nguyen, An ; Raj, Roshin P. ; Tang, Han ( 2021 )., Ocean Science, 4 ( 17 ), 1081-1102, 10.5194/os-17-1081-2021.Hakuba, M. Z. ; Frederikse, T. ; Landerer, F. ( 2021 )., Geophysical Research Letters, 10.1029/2021GL093624.Sognnes, Eirin ( 2021 )., The University of Bergen, 164.Swierczek, Stan ( 2021 )., The University of Arizona, 120.Dimitris Menemenlis ; Horace G Mitchell ; Christopher N Hill ; Borner, Katy ( 2021 )., MIT Press, 126.Nakayama, Yoshihiro ; Greene, Chad A. ; Paolo, Fernando S. ; Mensah, Vigan ; Zhang, Hong ; Kashiwase, Haruhiko ; Simizu, Daisuke ; Greenbaum, Jamin S. ; Blankenship, Donald D. ; Abe-Ouchi, Ayako ; Aoki, Shigeru ( 2021 )., Geophysical Research Letters, 10.1029/2021GL094149.Pelle, Tyler ; Morlighem, Mathieu ; Nakayama, Yoshihiro ; Seroussi, Helene ( 2021 )., Geophysical Research Letters, 10.1029/2021GL093213.Sonnewald, Maike ; Lguensat, Redouane ( 2021 )., Journal of Advances in Modeling Earth Systems, 8 ( 13 ), 10.1029/2021MS002496.Harker, Alexander A. ; Schindelegger, Michael ; Ponte, Rui M. ; Salstein, David A. ( 2021 )., Journal of Geodesy, 9 ( 95 ), 110, 10.1007/s00190-021-01555-z.Grabon, Jeffrey S. ; Toole, John M. ; Nguyen, An T. ; Krishfield, Richard A. ( 2021 )., Progress in Oceanography, 102685, 10.1016/j.pocean.2021.102685.Morgan, Eric J. ; Manizza, Manfredi ; Keeling, Ralph F. ; Resplandy, Laure ; Mikaloff-Fletcher, Sara E. ; Nevison, Cynthia D. ; Jin, Yuming ; Bent, Jonathan D. ; Aumont, Olivier ; Doney, Scott C. ; Dunne, John P. ; John, Jasmin ; Lima, Ivan D. ; Long, Matthew C. ; Rodgers, Keith B. ( 2021 )., Journal of Geophysical Research : Oceans, 8 ( 26 ), 10.1029/2021JC017510.Kowalski, Peter ( 2021 )., Cornell University.Khatri, Hemant ; Griffies, Stephen M. ; Uchida, Takaya ; Wang, Han ; Menemenlis, Dimitris ( 2021 )., Geophysical Research Letters, 10.1029/2021GL094777.Kuo, Yan-Ning ; Lo, Min-Hui ; Liang, Yu-Chiao ; Tseng, Yu-Heng ; Hsu, Chia-Wei ( 2021 )., Geophysical Research Letters, 10.1029/2021GL094104.Hameed, Sultan ; Wolfe, Christopher L. P. ; Chi, Lequan ( 2021 )., Journal of Physical Oceanography, 10.1175/JPO-D-20-0108.1.Lenetsky, Jed E. ; Tremblay, Bruno ; Brunette, Charles ; Meneghello, Gianluca ( 2021 )., Journal of Climate, 11 ( 34 ), 4449-4462, 10.1175/JCLI-D-20-0544.1.Chen, Xiao ; Qiu, Bo ; Chen, Shuiming ; Qi, Yiquan ( 2021 )., Journal of Geophysical Research : Oceans, 8 ( 126 ), 10.1029/2020JC016932.Qiu, Bo ; Colin, Patrick L. ; Chen, Shuiming ( 2021 )., Geophysical Research Letters, 14 ( 48 ), 10.1029/2021GL093632.Pillar, Helen ; Nguyen, An T. ; Campin, Jean-Michel ; Heimbach, Patrick ( 2021 )., MIT Libraries.Pefanis, Vasileios ( 2021 )., University of Bremen.Bruera, Renzo ( 2021 )., Universitat Polite’cnica de Catalunya, 133.Rigby, Shaun ( 2021 )., University of Liverpool, 10.17638/03123760+C21.Williams, Timothy ; Korosov, Anton ; Rampal, Pierre ; Ólason, Einar ( 2021 )., The Cryosphere, 7 ( 15 ), 3207-3227, 10.5194/tc-15-3207-2021.Miao, Mingfang ; Zhang, Zhiwei ; Qiu, Bo ; Liu, Zhiyu ; Zhang, Xincheng ; Zhou, Chun ; Guan, Shoude ; Huang, Xiaodong ; Zhao, Wei ; Tian, Jiwei ( 2021 )., Geophysical Research Letters, 14 ( 48 ), 10.1029/2021GL093829.Cohanim, Kaylie ; Zhao, Ken X. ; Stewart, Andrew L. ( 2021 )., Journal of Physical Oceanography, 10.1175/JPO-D-20-0169.1.Zúñiga, D. ; Sanchez-Vidal, A. ; Flexas, M.M. ; Carroll, D. ; Rufino, M.M. ; Spreen, G. ; Calafat, A. ; Abrantes, F. ( 2021 )., Frontiers in Earth Science ( 9 ), 10.3389/feart.2021.579198.Mensah, Vigan ; Nakayama, Yoshihiro ; Fujii, Masakazu ; Nogi, Yoshifumi ; Ohshima, Kay I. ( 2021 )., Ocean Modelling ( 165 ), 101843, 10.1016/j.ocemod.2021.101843.Tak, Yong-Jin ; Song, Hajoon ; Cho, Yang-Ki ( 2021 )., Environmental Research Letters, 7 ( 16 ), 74036, 10.1088/1748-9326/ac0cad.Kotabova, Eva ; Malych, Ronald ; Pierella Karlusich, Juan José ; Kazamia, Elena ; Eichner, Meri ; Mach, Jan ; Lesuisse, Emmanuel ; Bowler, Chris ; Prášil, Ondřej ; Sutak, Robert ( 2021 )., mSystems, 1 ( 6 ), 10.1128/mSystems.00738-20.Leonid YURGANOV ; Dustin CARROLL ; Andrey PNYUSHKOV ; Igor POLYAKOV ; Hong ZHANG ( 2021 )., Advances in Polar Science, 2 ( 32 ), 118-140, 10.13679/j.advps.2021.0006.Lee, Eun Ae ; Kim, Sung Yong ( 2021 )., Continental Shelf Research, 104486, 10.1016/j.csr.2021.104486.Swierczek, Stan ; Mazloff, Matthew R. ; Morzfeld, Matthias ; Russell, Joellen L. ( 2021 )., Journal of Geophysical Research : Oceans, 10.1029/2021JC017235G7.Yamazaki, Kaihe ; Aoki, Shigeru ; Katsumata, Katsuro ; Hirano, Daisuke ; Nakayama, Yoshihiro ( 2021 )., Science Advances, 24 ( 7 ), eabf8755, 10.1126/sciadv.abf8755.Condron, Alan ; Hill, Jenna C. ( 2021 )., Nature Communications, 3668 ( 12 ), 10.1038/s41467-021-23924-0.Kaiser, Bryan E. ; Saenz, Juan A. ; Sonnewald, Maike ; Livescu, Daniel ( 2021 )., Cornell University.Kumar, Rajesh ; Li, Junde ; Hedstrom, Kate ; Babanin, Alexander V. ; Holland, David M. ; Heil, Petra ; Tang, Youmin ( 2021 )., diametric Science, 100716, 10.1016/j.polar.2021.100716.Wu, Yang ; Wang, Zhaomin ; Liu, Chengyan ; Yan, Liangjun ( 2021 )., Frontiers in Marine Science ( 8 ), 10.3389/fmars.2021.638741.Kutoglu, Hakan S. ; Becek, Kazimierz ( 2021 )., Remote Sensing, 7 ( 13 ), 1242, 10.3390/rs13071242.Inoue, Tomohiro ; Ito, Yoshihiro ; Wallace, Laura M. ; Yoshikawa, Yutaka ; Inazu, Daisuke ; Garcia, Emmanuel Soliman M. ; Muramoto, Tomoya ; Webb, Spahr C. ; Ohta, Kazuaki ; Suzuki, Syuichi ; Hino, Ryota ( 2021 )., Geophysical Research Letters, 8 ( 48 ), 10.1029/2020GL092173.Huang, Shaojian ; Zhang, Yanxu ( 2021 )., Environmental Science & Technology, acs.est.1c00691, 10.1021/acs.est.1c00691.Boatwright, Victoria ; Fox-Kemper, Baylor ( 2021 )., Georgetown Scientific Research Journal, 5-17, 10.48091/DNPR7287.Leng, Hengling ; Spall, Michael A. ; Pickart, Robert S. ; Lin, Peigen ; Bai, Xuezhi ( 2021 )., Journal of Geophysical Research : Oceans, 10.1029/2021JC017291.Duda, Timothy F. ; Zhang, Weifeng Gordon ; Lin, Ying-Tsong ( 2021 )., The Journal of the Acoustical Society of America, 4 ( 149 ), 2117-2136, 10.1121/10.0003929.Liu, Hao ; Li, Shujiang ; Wei, Zexun ( 2021 )., Climate Dynamics, 10.1007/s00382-021-05758-0.Li, Mingting ; Yuan, Dongliang ; Gordon, Arnold L. ; Gruenburg, Laura K. ; Li, Xiang ; Li, Rui ; Yin, Xueli ; Yang, Ya ; Corvianatie, Corry ; Wei, Jun ; Yang, Song ( 2021 )., Geophysical Research Letters, 8 ( 48 ), 10.1029/2021GL092505.Xu, Lixiao ; Ding, Yang ; Xie, Shang-Ping ( 2021 )., Geophysical Research Letters, 8 ( 48 ), 10.1029/2021GL092511.Zhai, Yujia ; Yang, Jiayan ; Wan, Xiuquan ( 2021 )., Journal of Geophysical Research : Oceans, 10.1029/2021JC017184.Nagura, Motoki ( 2021 )., Journal of Climate, 10 ( 34 ), 3927-3953, 10.1175/JCLI-D-20-0482.1.Wu, Yang ; Wang, Zhaomin ; Liu, Chengyan ( 2021 )., Frontiers in Marine Science ( 8 ), 10.3389/fmars.2021.628892.Chen, Shuiming ; Qiu, Bo ( 2021 )., Journal of Geophysical Research : Oceans, 10.1029/2021JC017284.Narvekar, Jayu ; Roy Chowdhury, Riyanka ; Gaonkar, Diksha ; Kumar, P. K. Dinesh ; Prasanna Kumar, S. ( 2021 )., Scientific Reports, 1 ( 11 ), 7293, 10.1038/s41598-021-86594-4.Feng, Yang ; Menemenlis, Dimitris ; Xue, Huijie ; Zhang, Hong ; Carroll, Dustin ; Du, Yan ; Wu, Hui ( 2021 )., Geoscientific Model Development, 3 ( 14 ), 1801-1819, 10.5194/gmd-14-1801-2021.Li, Junde ; Babanin, Alexander V. ; Liu, Qingxiang ; Voermans, Joey J. ; Heil, Petra ; Tang, Youmin ( 2021 )., Journal of Marine Science and Engineering, 4 ( 9 ), 365, 10.3390/jmse9040365.Boland, Emma J. D. ; Jones, Daniel C. ; Meijers, Andrew J. S. ; Forget, Gael ; Josey, Simon A. ( 2021 )., Journal of Geophysical Research : Oceans, 10.1029/2020JC016585.Zhao, Mengnan ; Ponte, Rui M. ; Wang, Ou ; Lumpkin, Rick ( 2021 )., Journal of Atmospheric and Oceanic Technology, 10.1175/JTECH-D-20-0159.1.Li, Qiang ; Zhou, Lei ; Xie, Lingling ( 2021 )., Water, 7 ( 13 ), 926, 10.3390/w13070926.Tesdal, Jan-Erik ; Abernathey, Ryan P. ( 2021 )., Journal of Climate, 8 ( 34 ), 2941-2956, 10.1175/JCLI-D-20-0058.1.Yool, Andrew ; Palmiéri, Julien ; Jones, Colin G. ; de Mora, Lee ; Kuhlbrodt, Till ; Popova, Ekatarina E. ; Nurser, A. J. George ; Hirschi, Joel ; Blaker, Adam T. ; Coward, Andrew C. ; Blockley, Edward W. ; Sellar, Alistair A. ( 2021 )., Geoscientific Model Development, 6 ( 14 ), 3437-3472, 10.5194/gmd-14-3437-2021.Follett, Christopher L. ; Dutkiewicz, Stephanie ; Forget, Gael ; Cael, B. B. ; Follows, Michael J. ( 2021 )., Limnology and Oceanography, lno.11763, 10.1002/lno.11763.Zakem, Emily J. ; Lauderdale, Jonathan M. ; Schlitzer, Reiner ; Follows, Michael J. ( 2021 )., Geophysical Research Letters, 5 ( 48 ), 10.1029/2020GL090423.Kostov, Yavor ; Johnson, Helen L. ; Marshall, David P. ; Heimbach, Patrick ; Forget, Gael ; Holliday, N. Penny ; Lozier, M. Susan ; Li, Feili ; Pillar, Helen R. ; Smith, Timothy ( 2021 )., Nature Geoscience, 10.1038/s41561-021-00759-4.Rousselet, Louise ; Cessi, Paola ; Forget, Gael ( 2021 )., Science Advances, 21 ( 7 ), eabf5478, 10.1126/sciadv.abf5478.Stanley, Geoffrey J. ; McDougall, Trevor J. ; Barker, Paul M. ( 2021 )., Journal of Advances in Modeling Earth Systems, 5 ( 13 ), 10.1029/2020MS002436.Kersalé, M. ; Meinen, C. S. ; Perez, R. C. ; Piola, A. R. ; Speich, S. ; Campos, E. J. D. ; Garzoli, S. L. ; Ansorge, I. ; Volkov, D. L. ; Le Hénaff, M. ; Dong, S. ; Lamont, T. ; Sato, O. T. ; van den Berg, M. ( 2021 )., Journal of Geophysical Research : Oceans, 5 ( 126 ), 10.1029/2020JC016947.Hamlington, B. D. ; Frederikse, T. ; Thompson, P. R. ; Willis, J. K. ; Nerem, R. S. ; Fasullo, J. T. ( 2021 )., Earth ‘s Future, 4 ( 9 ), 10.1029/2020EF001839.Loose, Nora ; Heimbach, Patrick ( 2021 )., Journal of Advances in Modeling Earth Systems, 4 ( 13 ), 10.1029/2020MS002386.Nguyen, An T. ; Pillar, Helen ; Ocaña, Victor ; Bigdeli, Arash ; Smith, Timothy A. ; Heimbach, Patrick ( 2021 )., Journal of Advances in Modeling Earth Systems, 5 ( 13 ), 10.1029/2020MS002398.Ponte, R. M. ; Sun, Q. ; Liu, C. ; Liang, X. ( 2021 )., Geophysical Research Letters, 10.1029/2021GL092935.Patrizio, Casey R. ; Thompson, David W.J. ( 2021 )., Journal of Climate, 1-63, 10.1175/JCLI-D-20-0476.1.Liu, Wei ; Fedorov, Alexey ( 2021 ) .Wood, Michael ; Rignot, Eric ; Fenty, Ian ; An, Lu ; Bjørk, Anders ; van den Broeke, Michiel ; Cai, Cilan ; Kane, Emily ; Menemenlis, Dimitris ; Millan, Romain ; Morlighem, Mathieu ; Mouginot, Jeremie ; Noël, Brice ; Scheuchl, Bernd ; Velicogna, Isabella ; Willis, Josh K. ; Zhang, Hong ( 2021 )., Science Advances, 1 ( 7 ), eaba7282, 10.1126/sciadv.aba7282.Zheng, Fei ; Sun, Yue ; Yang, Qinghua ; Mu, Longjiang ( 2021 )., Advances in Atmospheric Sciences, 1 ( 38 ), 29-48, 10.1007/s00376-020-9223-6.An, Lu ; Rignot, Eric ; Wood, Michael ; Willis, Josh K. ; Mouginot, Jérémie ; Khan, Shfaqat A. ( 2021 )., Proceedings of the National Academy of Sciences, 2 ( 118 ), e2015483118, 10.1073/pnas.2015483118.Li, Hongjie ; Xu, Yongsheng ( 2021 )., Journal of Physical Oceanography, 10.1175/JPO-D-20-0053.1.ECCO Consortium ; Fukumori, Ichiro ; Wang, Ou ; Fenty, Ian ; Forget, Gael ; Heimbach, Patrick ; Ponte, Rui M. ( 2021 ) .Xie, Jiping ; Mu, Longjiang ; Han, Bo ; Yang, Qinghua ( 2021 )., Journal of Glaciology, 1-13, 10.1017/jog.2020.110.Zakem, Emily J. ; Lauderdale, Jonathan M. ; Schlitzer, Reiner ; Follows, Michael J. ( 2021 )., Geophysical Research Letters, 10.1029/2020GL090423.Blaker, Adam T. ; Joshi, Manoj ; Sinha, Bablu ; Stevens, David P. ; Smith, Robin S. ; Hirschi, Joël J.-M. ( 2021 )., Geoscientific Model Development, 1 ( 14 ), 275-293, 10.5194/gmd-14-275-2021.Zhang, Yanxu ; Dutkiewicz, Stephanie ; Sunderland, Elsie M. ( 2021 )., One earth, 10.1016/j.oneear.2021.01.005.Dobashi, Yoichiro ; Inazu, Daisuke ( 2021 )., Frontiers in Earth Science ( 8 ), 10.3389/feart.2020.598270.Liu, Junjie ; Baskaran, Latha ; Bowman, Kevin ; Schimel, David ; Bloom, A. Anthony ; Parazoo, Nicholas C. ; Oda, Tomohiro ; Carroll, Dustin ; Menemenlis, Dimitris ; Joiner, Joanna ; Commane, Roisin ; Daube, Bruce ; Gatti, Lucianna V. ; McKain, Kathryn ; Miller, John ; Stephens, Britton B. ; Sweeney, Colm ; Wofsy, Steven ( 2021 )., Earth System Science Data, 2 ( 13 ), 299-330, 10.5194/essd-13-299-2021.Belonenko, Tatyana V. ; Travkin, Vladimir S. ; Koldunov, Aleksey V. ; Volkov, Denis L. ( 2021 )., russian Journal of Earth Sciences, 1 ( 21 ), 1-15, 10.2205/2020ES000747.Vazquez-Cuervo, Jorge ; Gentemann, Chelle ; Tang, Wenqing ; Carroll, Dustin ; Zhang, Hong ; Menemenlis, Dimitris ; Gomez-Valdes, Jose ; Bouali, Marouan ; Steele, Michael ( 2021 )., Remote Sensing, 5 ( 13 ), 831, 10.3390/rs13050831.Kodama, Keri ; Burls, Natalie J. ; Trenary, Laurie ( 2021 )., Journal of Climate, 6 ( 34 ), 2001-2015, 10.1175/JCLI-D-20-0045.1.Han, Lei ( 2021 )., Journal of Physical Oceanography, 3 ( 51 ), 701-725, 10.1175/JPO-D-20-0211.1.Lyu, Guokun ; Koehl, Armin ; Serra, Nuno ; Stammer, Detlef ; Xie, Jiping ( 2021 )., quarterly Journal of the Royal Meteorological Society, qj.4002, 10.1002/qj.4002.Schindelegger, Michael ; Harker, Alexander A. ; Ponte, Rui M. ; Dobslaw, Henryk ; Salstein, David A. ( 2021 )., Journal of Geophysical Research : Oceans, 2 ( 126 ), 10.1029/2020JC017031.Pandey, Lokesh ; Dwivedi, Suneet ; Martin, Matthew ( 2021 )., Marine Geodesy ( 1-14 ), 10.1080/01490419.2021.189427.Velímský, Jakub ; Schnepf, Neesha R. ; Nair, Manoj C. ; Thomas, Natalie P. ( 2021 )., Ocean Science, 1 ( 17 ), 383-392, 10.5194/os-17-383-2021.Desbruyères, Damien ; Chafik, Léon ; Maze, Guillaume ( 2021 )., Communications Earth & Environment, 1 ( 2 ), 48, 10.1038/s43247-021-00120-y.Ren, Shihe ; Liang, Xi ; Sun, Qizhen ; Yu, Hao ; Tremblay, L. Bruno ; Lin, Bo ; Mai, Xiaoping ; Zhao, Fu ; Li, Ming ; Liu, Na ; Chen, Zhikun ; Zhang, Yunfei ( 2021 )., Geoscientific Model Development, 2 ( 14 ), 1101-1124, 10.5194/gmd-14-1101-2021.Dutkiewicz, Stephanie ; Boyd, Philip W. ; Riebesell, Ulf ( 2021 )., Global Change Biology, 6 ( 27 ), 1196-1213, 10.1111/gcb.15493.Dong, Jihai ; Fox-Kemper, Baylor ; Zhang, Hong ; Dong, Changming ( 2021 )., Journal of Physical Oceanography, 10.1175/JPO-D-20-0159.1.Ward, Ben A. ; Cael, B.B. ; Collins, Sinead ; Young, C. Robert ( 2021 )., Proceedings of the National Academy of Sciences, 10 ( 118 ), e2007388118, 10.1073/pnas.2007388118.Min, Chao ; Yang, Qinghua ; Mu, Longjiang ; Kauker, Frank ; Ricker, Robert ( 2021 )., The Cryosphere, 1 ( 15 ), 169-181, 10.5194/tc-15-169-2021.Schloesser, F. ; Thompson, P.R. ; Piecuch, C.G. ( 2021 )., Geophysical Research Letters, 10.1029/2020GL091959.Praetorius, Summer K. ; Condron, Alan ; Mix, Alan C. ; Walczak, Maureen H. ; McKay, Jennifer L. ; Du, Jianghui ( 2020 )., Science Advances, 9 ( 6 ), 10.1126/sciadv.aay2915.Buongiorno Nardelli, Bruno ( 2020 )., Earth System Science Data, 3 ( 12 ), 1711-1723, 10.5194/essd-12-1711-2020.Mémin, Anthony ; Boy, Jean-Paul ; Santamaría-Gómez, Alvaro ( 2020 )., GPS Solutions, 2 ( 24 ), 45, 10.1007/s10291-020-0959-3.Hu, Shijian ; Sprintall, Janet ; Guan, Cong ; Hu, Dunxin ; Wang, Fan ; Lu, Xi ; Li, Shihan ( 2020 )., Journal of Geophysical Research : Oceans, 9 ( 125 ), 10.1029/2020JC016210.Rosat, S. ; Gillet, N ; Boy, J-P. ; Couhert, A. ; Dumberry, M. ( 2020 )., Geophysical Journal International, 10.1093/gji/ggaa590.Travis, Seth ( 2020 )., University of Hawai’i at Manoa, 147.Grabon, Jeffrey Scott ( 2020 )., Massachusetts Institute of Technology.Asbjørnsen, Helene ( 2020 )., University of Bremen.Cullen, Kerstin ( 2020 )., Oregon Statue University.Lai, Yen Ru ; Wang, Lei ; Bevis, Michael ; Fok, Hok Sum ; Alanazi, Abdullah ( 2020 )., Remote Sensing, 23 ( 12 ), 3861, 10.3390/rs12233861.Sutterley, Tyler C. ; Velicogna, Isabella ; Hsu, Chia-Wei ( 2020 )., Earth and Space Science, 3 ( 7 ), 10.1029/2019EA000860.Galperin, Boris ; Sukoriansky, Semion ( 2020 )., Physical Review Fluids, 6 ( 5 ), 063803, 10.1103/PhysRevFluids.5.063803.Stephanie Dutkiewicz, Mark Baird, Stefano Ciavatta, Stephanie Henson, AnnaHickman, Cecile Rousseaux and Charles Stock ( 2020 ) .Farrar, J. Thomas ; D’Asaro, Eric ; Rodriguez, Ernesto ; Shcherbina, Andrey ; Czech, Erin ; Matthias, Paul ; Nicholas, Sommer ; Bingham, Frederick ; Mahedevan, Amala ; Omand, Melissa ; Rainville, Luc ; Lee, Craig ; Chelton, Dudley ; Samelson, Roger ; O’Neill, Larry ; Lenain, Luc ; Menemenlis, Dimitris ; Perkovic-Martin, Dragana ; Mouroulis, Pantazis ; Gierach, Michelle ; Thompson, David ; Wineteer, Alexander ; Torres, Hector ; Klein, Patrice ; Thompson, Andrew ; McWilliams, James C. ; Molemaker, Jeroen ; Barkan, Roy ; Wenegrat, Jacob ; Rocha, Cesar ; Jacobs, Gregg ; D’Addezio, Joseph ; de Halleux, Sebastien ; Jenkins, Richard ( 2020 )., IGARSS 2020 – 2020 IEEE International Geoscience and Remote Sensing Symposium, 3533-3536, 10.1109/IGARSS39084.2020.9323112.Liang eleven, Zhao Fu, Li Chunhua, Zhang Lin, Li Bingrui ( 2020 )., Advances in Polar Science, 1 ( 31 ), 14-25, dx.doi.org/10.13679/j.advps.2019.0019.Pefanis, Vasileios ; Losa, Svetlana N. ; Losch, Martin ; Janout, Markus A. ; Bracher, Astrid ( 2020 )., Geophysical Research Letters, 21 ( 47 ), 10.1029/2020GL088795.Portela, Esther ; Kolodziejczyk, Nicolas ; Vic, Clément ; Thierry, Virginie ( 2020 )., Geophysical Research Letters, 17 ( 47 ), 10.1029/2020GL089040.Serykh, I. V. ; Sonechkin, D. M. ( 2020 )., Pure and Applied Geophysics, 12 ( 177 ), 5951-5967, 10.1007/s00024-020-02615-9.Cheng, Lijing ; Trenberth, Kevin E. ; Gruber, Nicolas ; Abraham, John P. ; Fasullo, John T. ; Li, Guancheng ; Mann, Michael E. ; Zhao, Xuanming ; Zhu, Jiang ( 2020 )., Journal of Climate, 23 ( 33 ), 10357-10381, 10.1175/JCLI-D-20-0366.1.Yang, Yang ; McWilliams, James C. ; Liang, X. San ; Zhang, Hong ; Weisberg, Robert H. ; Liu, Yonggang ; Menemenlis, Dimitris ( 2020 )., Journal of Physical Oceanography, 10.1175/JPO-D-20-0247.1.Liu, Junjie ; Wennberg, Paul O. ; Parazoo, Nicholas C. ; Yin, Yi ; Frankenberg, Christian ( 2020 )., AGU Advances, 4 ( 1 ), 10.1029/2020AV000228.Bigdeli, A. ; Nguyen, A. T. ; Pillar, H. R. ; Ocaña, V. ; Heimbach, P. ( 2020 )., Geophysical Research Letters, 20 ( 47 ), 10.1029/2020GL090236.Aubone, N. ; Palma, E.D. ; Piola, A.R. ( 2020 )., Progress in Oceanography, 102499, 10.1016/j.pocean.2020.102499.England, Mark R. ; Wagner, Till J. W. ; Eisenman, Ian ( 2020 )., Science Advances, 51 ( 6 ), eabd1273, 10.1126/sciadv.abd1273.Fayman, P. A. ; Prants, S. V. ; Budyansky, M. V. ; Uleysky, M. Yu. ( 2020 )., Izvestiya, Atmospheric and Oceanic Physics, 6 ( 56 ), 618-631, 10.1134/S0001433820060043.Balwada, Dhruv ; LaCasce, Joseph H. ; Speer, Kevin G. ; Ferrari, Raffaele ( 2020 )., Journal of Physical Oceanography, 10.1175/JPO-D-19-0243.1.Song, Hajoon ; Marshall, John ; McGillicuddy, Dennis J. ; Seo, Hyodae ( 2020 )., Journal of Geophysical Research : Oceans, 4 ( 125 ), 10.1029/2020JC016046.Wu, Yang ; Wang, Zhaomin ; Liu, Chengyan ; Lin, Xia ( 2020 )., Advances in Atmospheric Sciences, 5 ( 37 ), 515-531, 10.1007/s00376-020-9203-x.Jones, Daniel C. ; Boland, Emma ; Meijers, Andrew J. S. ; Forget, Gael ; Josey, Simon ; Sallée, Jean-Baptiste ; Shuckburgh, Emily ( 2020 )., Journal of Physical Oceanography, 3 ( 50 ), 773-790, 10.1175/JPO-D-19-0155.1.Dong, Jihai ; Fox-Kemper, Baylor ; Zhang, Hong ; Dong, Changming ( 2020 )., Journal of Physical Oceanography, 9 ( 50 ), 2649-2667, 10.1175/JPO-D-20-0043.1.Su, Zhan ; Torres, Hector ; Klein, Patrice ; Thompson, Andrew F. ; Siegelman, Lia ; Wang, Jinbo ; Menemenlis, Dimitris ; Hill, Christopher ( 2020 )., Journal of Geophysical Research : Oceans, 10.1029/2020JC016544.Judd, Emily J. ; Bhattacharya, Tripti ; Ivany, Linda C. ( 2020 )., Geophysical Research Letters, 10.1029/2020GL089044.Lin, Hongyang ; Liu, Zhiyu ; Hu, Jianyu ; Menemenlis, Dimitris ; Huang, Yongxiang ( 2020 )., Progress in Oceanography ( 188 ), 102420, 10.1016/j.pocean.2020.102420.Hu, Shijian ; Sprintall, Janet ; Guan, Cong ; McPhaden, Michael J. ; Wang, Fan ; Hu, Dunxin ; Cai, Wenju ( 2020 )., Science Advances, 6 ( 6 ), eaax7727, 10.1126/sciadv.aax7727.Ridge, S. M. ; McKinley, G. A. ( 2020 )., Global Biogeochemical Cycles, 7 ( 34 ), 10.1029/2019GB006457.Joerss, Hanna ; Xie, Zhiyong ; Wagner, Charlotte C. ; von Appen, Wilken-Jon ; Sunderland, Elsie M. ; Ebinghaus, Ralf ( 2020 )., Environmental Science & Technology, acs.est.0c00228, 10.1021/acs.est.0c00228.Pak, Gyundo ; Park, Jae-Hyoung ; Lee, Seok-Joon ; Park, Young-Gyu ; Chang, You-Soon ( 2020 )., Ocean Science Journal, 10.1007/s12601-020-0036-4.Liu, Hao ; Qu, Tangdong ( 2020 )., Journal of Geophysical Research : Oceans, 10.1029/2020JC016309.Ludwigsen, Carsten A. ; Andersen, Ole B. ( 2020 )., Advances in Space Research, 10.1016/j.asr.2019.12.027.Koldunov, A. V. ; Belonenko, T. V. ( 2020 )., Izvestiya, Atmospheric and Oceanic Physics, 5 ( 56 ), 502-511, 10.1134/S0001433820040040.Pan, Yulin ; Arbic, Brian K. ; Nelson, Arin D. ; Menemenlis, Dimitris ; Peltier, W. R. ; Xu, Wentao ; Li, Ye ( 2020 )., Journal of Physical Oceanography, 1-53, 10.1175/JPO-D-20-0039.1.Mohammadi-Aragh, Mahdi ; Losch, Martin ; Goessling, Helge F. ( 2020 )., Monthly Weather Review, 8 ( 148 ), 3287-3303, 10.1175/MWR-D-19-0359.1.Fournier, Séverine ; Lee, Tong ; Wang, Xiaochun ; Armitage, Thomas W. K. ; Wang, Ou ; Fukumori, Ichiro ; Kwok, Ron ( 2020 )., Journal of Geophysical Research : Oceans, 10.1029/2020JC016110.Gao, Guandong ; Marin, Maxime ; Feng, Ming ; Yin, Baoshu ; Yang, Dezhou ; Feng, Xingru ; Ding, Yang ; Song, Dehai ( 2020 )., Journal of Geophysical Research : Oceans, 10.1029/2020JC016518.Lang, Yandong ; Stanley, Geoffrey J. ; McDougall, Trevor J. ; Barker, Paul M. ( 2020 )., Journal of Physical Oceanography, 1-58, 10.1175/JPO-D-19-0321.1.Yang, Haijun ; Shen, Xingchen ; Yao, Jie ; Wen, Qin ( 2020 )., Journal of Climate, 9 ( 33 ), 3565-3583, 10.1175/JCLI-D-18-0734.1.Newsom, Emily ; Zanna, Laure ; Khatiwala, Samar ; Gregory, Jonathan M. ( 2020 )., Geophysical Research Letters, 10.1029/2020GL088429.Sánchez-Leal, R.F. ; Bellanco, M.J. ; Naranjo, C. ; García-Lafuente, J. ; González-Pola, C. ( 2020 )., Continental Shelf Research, 104190, 10.1016/j.csr.2020.104190.Strobach, Ehud ; Molod, Andrea ; Trayanov, Atanas ; Forget, Gael ; Campin, Jean-Michel ; Hill, Chris ; Menemenlis, Dimitris ( 2020 )., Geophysical Research Letters, e2019GL085837, 10.1029/2019GL085837.Rousselet, Louise ; Cessi, Paola ; Forget, Gael ( 2020 )., Geophysical Research Letters, 10.1029/2020GL089137.Portela, Esther ; Kolodziejczyk, Nicolas ; Maes, Christophe ; Thierry, Virginie ( 2020 )., Journal of Physical Oceanography, 2 ( 50 ), 361-381, 10.1175/JPO-D-19-0128.1.Li ; Huang ; Chen ; Dam ; Fok ; Zhao ; Wu ; Wang ( 2020 )., Remote Sensing, 4 ( 12 ), 594, 10.3390/rs12040594.Youngs, Madeleine K. ; Ferrari, Raffaele ; Flierl, Glenn R. ( 2020 )., Geophysical Research Letters, 15 ( 47 ), 10.1029/2020GL089135.Royston, Sam ; Dutt Vishwakarma, Bramha ; Westaway, Richard ; Rougier, Jonathan ; Sha, Zhe ; Bamber, Jonathan ( 2020 )., Journal of Geophysical Research : Oceans, 1 ( 125 ), 10.1029/2019JC015535.Luecke, Conrad A. ; Arbic, Brian K. ; Richman, James G. ; Shriver, Jay F. ; Alford, Matthew H. ; Ansong, Joseph K. ; Bassette, Steven L. ; Buijsman, Maarten C. ; Menemenlis, Dimitris ; Scott, Robert B. ; Timko, Patrick G. ; Voet, Gunnar ; Wallcraft, Alan J. ; Zamudio, Luis ( 2020 )., Journal of Geophysical Research : Oceans, 10.1029/2019JC015306.Liang, Yu-Chiao ; Lo, Min-Hui ; Lan, Chia-Wei ; Seo, Hyodae ; Ummenhofer, Caroline C. ; Yeager, Stephen ; Wu, Ren-Jie ; Steffen, John D. ( 2020 )., Nature Communications, 1 ( 11 ), 4390, 10.1038/s41467-020-18187-0.Qiu, Bo ; Chen, Shuiming ; Klein, Patrice ; Torres, Hector ; Wang, Jinbo ; Fu, Lee-Lueng ; Menemenlis, Dimitris ( 2020 )., Journal of Physical Oceanography, 1 ( 50 ), 55-79, 10.1175/JPO-D-19-0172.1.Sonnewald, Maike ; Dutkiewicz, Stephanie ; Hill, Christopher ; Forget, Gael ( 2020 )., Science Advances, 22 ( 6 ), eaay4740, 10.1126/sciadv.aay4740.Siegelman, Lia ( 2020 )., Journal of Physical Oceanography, 3 ( 50 ), 727-749, 10.1175/JPO-D-19-0253.1.Mauzole, Y. L. ; Torres, H. S. ; Fu, L.-L. ( 2020 )., Journal of Geophysical Research : Oceans, 2 ( 125 ), 10.1029/2019JC015499.Asbjørnsen, Helene ; Årthun, Marius ; Skagseth, Øystein ; Eldevik, Tor ( 2020 )., Geophysical Research Letters, 10.1029/2020GL088036.Cessi, Paola ( 2020 )., Journal of Physical Oceanography, 7 ( 50 ), 1853-1870, 10.1175/JPO-D-20-0026.1.Tesdal, Jan-Erik ; Haine, Thomas W. N. ( 2020 )., Journal of Geophysical Research : Oceans, 10.1029/2020JC016435.Villas Bôas, Ana B. ; Cornuelle, Bruce. D. ; Mazloff, Matthew. R. ; Gille, Sarah. T. ; Ardhuin, Fabrice ( 2020 )., Journal of Physical Oceanography, 1-45, 10.1175/JPO-D-20-0151.1.Geyer, Florian ; Sagen, Hanne ; Cornuelle, Bruce ; Mazloff, Matthew R. ; Vazquez, Heriberto J. ( 2020 )., The Journal of the Acoustical Society of America, 2 ( 147 ), 1042-1053, 10.1121/10.0000513.Hieronymus, Magnus ; Nycander, Jonas ( 2020 )., Journal of Climate, 1 ( 33 ), 317-338, 10.1175/JCLI-D-19-0204.1.Peng, Qihua ; Xie, Shang-Ping ; Wang, Dongxiao ; Kamae, Youichi ; Zhang, Hong ; Hu, Shineng ; Zheng, Xiao-Tong ; Wang, Weiqiang ( 2020 )., Journal of Climate, 8 ( 33 ), 3197-3212, 10.1175/JCLI-D-19-0435.1.Wang, Haodi ; Chen, Shiyao ; Wang, Ning ; Yu, Peilong ; Yang, Xiao ; Wang, Yang ; Zhang, Yongchui ( 2020 )., 2020 IEEE 3rd International Conference on Information Communication and Signal Processing ( ICICSP ), 486-491, 10.1109/ICICSP50920.2020.9232090.Kelley, Maxwell ; Schmidt, Gavin A. ; Nazarenko, Larissa S. ; Bauer, Susanne E. ; Ruedy, Reto ; Russell, Gary L. ; Ackerman, Andrew S. ; Aleinov, Igor ; Bauer, Michael ; Bleck, Rainer ; Canuto, Vittorio ; Cesana, Grégory ; Cheng, Ye ; Clune, Thomas L. ; Cook, Ben I. ; Cruz, Carlos A. ; Del Genio, Anthony D. ; Elsaesser, Gregory S. ; Faluvegi, Greg ; Kiang, Nancy Y. ; Kim, Daehyun ; Lacis, Andrew A. ; Leboissetier, Anthony ; LeGrande, Allegra N. ; Lo, Ken K. ; Marshall, John ; Matthews, Elaine E. ; McDermid, Sonali ; Mezuman, Keren ; Miller, Ron L. ; Murray, Lee T. ; Oinas, Valdar ; Orbe, Clara ; García-Pando, Carlos Pérez ; Perlwitz, Jan P. ; Puma, Michael J. ; Rind, David ; Romanou, Anastasia ; Shindell, Drew T. ; Sun, Shan ; Tausnev, Nick ; Tsigaridis, Kostas ; Tselioudis, George ; Weng, Ensheng ; Wu, Jingbo ; Yao, Mao-Sung ( 2020 )., Journal of Advances in Modeling Earth Systems, 8 ( 12 ), 10.1029/2019MS002025.Chaudhuri, Anya ; Shankar, D ; Aparna, S G ; Amol, P ; Fernando, V ; Kankonkar, A ; Michael, G S ; Satelkar, N P ; Khalap, S T ; Tari, A P ; Gaonkar, M G ; Ghatkar, S ; Khedekar, R R ( 2020 )., Journal of Earth System Science, 1 ( 129 ), 57, 10.1007/s12040-019-1322-3.Ludwigsen, Carsten Ankjær ; Khan, Shfaqat Abbas ; Andersen, Ole Baltazar ; Marzeion, Ben ( 2020 )., Geophysical Research Letters, 19 ( 47 ), 10.1029/2020GL088144.Yool, A. ; Palmiéri, J. ; Jones, C. G. ; Sellar, A. A. ; Mora, L. ; Kuhlbrodt, T. ; Popova, E. E. ; Mulcahy, J. P. ; Wiltshire, A. ; Rumbold, S. T. ; Stringer, M. ; Hill, R. S. R. ; Tang, Y. ; Walton, J. ; Blaker, A. ; Nurser, A. J. G. ; Coward, A. C. ; Hirschi, J. ; Woodward, S. ; Kelley, D. I. ; Ellis, R. ; Rumbold-Jones, S. ( 2020 )., Journal of Advances in Modeling Earth Systems, 8 ( 12 ), 10.1029/2019MS001933.Erickson, Zachary K. ; Thompson, Andrew F. ; Callies, Jörn ; Yu, Xiaolong ; Garabato, Alberto Naveira ; Klein, Patrice ( 2020 )., Journal of Physical Oceanography, 1 ( 50 ), 145-160, 10.1175/JPO-D-19-0030.1.Jiang, Huichang ; Yu, Liu ; Xu, Hongzhou ; Vetter, Philip A. ( 2020 )., Atmosphere-Ocean, 1-12, 10.1080/07055900.2020.1789547.Yin, Yi ; Byrne, Brendan ; Liu, Junjie ; Wennberg, Paul O. ; Davis, Kenneth J. ; Magney, Troy ; Köhler, Philipp ; He, Liyin ; Jeyaram, Rupesh ; Humphrey, Vincent ; Gerken, Tobias ; Feng, Sha ; Digangi, Joshua P. ; Frankenberg, Christian ( 2020 )., AGU Advances, 1 ( 1 ), 10.1029/2019AV000140.Nguyen, An T. ; Heimbach, Patrick ; Garg, Vikram V. ; Ocaña, Victor ; Lee, Craig ; Rainville, Luc ( 2020 )., Journal of Atmospheric and Oceanic Technology, 8 ( 37 ), 1477-1495, 10.1175/JTECH-D-19-0159.1.Mackay, Neill ; Wilson, Chris ; Holliday, N. Penny ; Zika, Jan D. ( 2020 )., Journal of Physical Oceanography, 6 ( 50 ), 1533-1555, 10.1175/JPO-D-19-0188.1.Zhang, Yanxu ; Soerensen, Anne L. ; Schartup, Amina T. ; Sunderland, Elsie M. ( 2020 )., Global Biogeochemical Cycles, 2 ( 34 ), 10.1029/2019GB006348.Rovira-Navarro, Marc ; van five hundred Wal, Wouter ; Barletta, Valentina R. ; Root, Bart C. ; Sandberg Sørensen, Louise ( 2020 )., Solid Earth, 2 ( 11 ), 379-395, 10.5194/se-11-379-2020.Nelson, A.D. ; Arbic, B.K. ; Menemenlis, D. ; Peltier, W.R. ; Alford, M.H. ; Grisouard, N. ; Klymak, J.M. ( 2020 )., Journal of Geophysical Research : Oceans, 10.1029/2019JC015974.Hutter, Nils ; Losch, Martin ( 2020 )., The Cryosphere, 1 ( 14 ), 93-113, 10.5194/tc-14-93-2020.Song, Xiangzhou ( 2020 )., Journal of Geophysical Research : Oceans, 10.1029/2020JC016215.Siegelman, Lia ; Klein, Patrice ; Thompson, Andrew F. ; Torres, Hector S. ; Menemenlis, Dimitris ( 2020 )., Fluids, 3 ( 5 ), 145, 10.3390/fluids5030145.Dong, Jihai ; Fox-Kemper, Baylor ; Zhang, Hong ; Dong, Changming ( 2020 )., Geophysical Research Letters, 6 ( 47 ), 10.1029/2020GL087388.Wu, Wenbo ; Zhan, Zhongwen ; Peng, Shirui ; Ni, Sidao ; Callies, Jörn ( 2020 )., Science, 6510 ( 369 ), 1510-1515, 10.1126/science.abb9519.Anandh, Thanka Swamy ; Das, Bijan Kumar ; Kuttippurath, J. ; Chakraborty, Arun ( 2020 )., Ocean Dynamics, 3 ( 70 ), 327-337, 10.1007/s10236-019-01330-x.Levang, Samuel J. ; Schmitt, Raymond W. ( 2020 )., Journal of Physical Oceanography, 1 ( 50 ), 255-268, 10.1175/JPO-D-19-0166.1.Huang, Jiamei ; Zhuang, Wei ; Yan, Xiao-Hai ; Wu, Zelun ( 2020 )., Acta Oceanologica Sinica, 10.1007/s13131-020-1574-4.Guan, Cong ; Wang, Fan ; Hu, Shijian ( 2020 )., Journal of Oceanology and Limnology, 5 ( 38 ), 1394-1407, 10.1007/s00343-020-0038-1.Wang, Linsong ; Chen, Chao ; Ma, xian ; Fu, Zhengyan ; Zheng, Yuhao ; Peng, Zhenran ( 2020 )., Science of The sum Environment ( 707 ), 135606, 10.1016/j.scitotenv.2019.135606.Wang, Tianyu ; Gille, Sarah T. ; Mazloff, Matthew R. ; Zilberman, Nathalie V. ; Du, Yan ( 2020 )., Journal of Geophysical Research : Oceans, 10.1029/2019JC016042.Carroll, D. ; Menemenlis, D. ; Adkins, J. F. ; Bowman, K. W. ; Brix, H. ; Dutkiewicz, Stephanie ; Fenty, I. ; Gierach, M. M. ; Hill, C. ; Jahn, O. ; Landschützer, P. ; Lauderdale, J. M. ; Liu, J. ; Manizza, M. ; Naviaux, J. D. ; Rödenbeck, C. ; Schimel, D. S. ; Van five hundred Stocken, T. ; Zhang, H. ( 2020 )., Journal of Advances in Modeling Earth Systems, 10.1029/2019MS001888.Nguyen, An T. ; Woodgate, Rebecca A. ; Heimbach, Patrick ( 2020 )., Journal of Geophysical Research : Oceans, 10.1029/2020JC016213.Piecuch, Christopher G. ; Wadehra, Riley ( 2020 )., Geophysical Research Letters, 4 ( 47 ), 10.1029/2020GL086984.Mazloff, Matthew R. ; Cornuelle, Bruce ; Gille, Sarah T. ; Wang, Jinbo ( 2020 )., Journal of Geophysical Research : Oceans, 2 ( 125 ), 10.1029/2019JC015623.Tandon, Neil F. ; Saenko, Oleg A. ; Cane, Mark A. ; Kushner, Paul J. ( 2020 )., Journal of Physical Oceanography, 3 ( 50 ), 559-574, 10.1175/JPO-D-19-0129.1.Desbruyères, D. G. ; Sinha, B. ; McDonagh, E. L. ; Josey, S. A. ; Holliday, N. P. ; Smeed, D. A. ; New, A. L. ; Megann, A. ; Moat, B. I. ( 2020 )., Journal of Geophysical Research : Oceans, 10.1029/2020JC016366.Klos, Anna ; Bogusz, Janusz ; Bos, Machiel S. ; Gruszczynska, Marta ( 2020 ) .Wang, Minyang ; Xie, Shang-Ping ; Shen, Samuel S. P. ; Du, Yan ( 2020 )., Journal of Physical Oceanography, 10 ( 50 ), 3009-3024, 10.1175/JPO-D-20-0063.1.Wu, Shuguang ; Nie, Guigen ; Meng, Xiaolin ; Liu, Jingnan ; He, Yuefan ; Xue, Changhu ; Li, Haiyang ( 2020 )., Remote Sensing, 17 ( 12 ), 2822, 10.3390/rs12172822.Siegelman, Lia ; Klein, Patrice ; Rivière, Pascal ; Thompson, Andrew F. ; Torres, Hector S. ; Flexas, Mar ; Menemenlis, Dimitris ( 2020 )., Nature Geoscience, 1 ( 13 ), 50-55, 10.1038/s41561-019-0489-1.Wyatt, Alex S. J. ; Leichter, James J. ; Toth, Lauren T. ; Miyajima, Toshihiro ; Aronson, Richard B. ; Nagata, Toshi ( 2020 )., Nature Geoscience, 1 ( 13 ), 28-34, 10.1038/s41561-019-0486-4.Byrne, B. ; Liu, J. ; Lee, M. ; Baker, I. ; Bowman, K. W. ; Deutscher, N. M. ; Feist, D. G. ; Griffith, D. W. T. ; Iraci, L. T. ; Kiel, M. ; Kimball, J. S. ; Miller, C. E. ; Morino, I. ; Parazoo, N. C. ; Petri, C. ; Roehl, C. M. ; Sha, M. K. ; Strong, K. ; Velazco, V. A. ; Wennberg, P. O. ; Wunch, D. ( 2020 )., Journal of Geophysical Research : Atmospheres, 15 ( 125 ), 10.1029/2019JD032029.Butler, Martha P. ; Lauvaux, Thomas ; Feng, Sha ; Liu, Junjie ; Bowman, Kevin W. ; Davis, Kenneth J. ( 2020 )., Atmosphere, 8 ( 11 ), 787, 10.3390/atmos11080787.Androsov, Alexey ; Boebel, Olaf ; Schröter, Jens ; Danilov, Sergey ; Macrander, Andreas ; Ivanciu, Ioana ( 2020 )., Journal of Geophysical Research : Oceans, 3 ( 125 ), 10.1029/2019JC015469.Buongiorno Nardelli, Bruno ( 2020 )., Earth System Science Data, 3 ( 12 ), 1711-1723, 10.5194/essd-12-1711-2020.Anandh, T. S ; Das, Bijan Kumar ; Kuttippurath, J. ; Chakraborty, Arun ( 2020 )., Asia-Pacific Journal of Atmospheric Sciences, 10.1007/s13143-020-00197-z.Shi, Hongkai ; He, Xiufeng ; Wu, Yihao ; Huang, Jia ( 2020 )., Advances in Space Research, 10.1016/j.asr.2020.07.042.Han, Lei ; Huang, Rui Xin ( 2020 )., Journal of Physical Oceanography, 3 ( 50 ), 679-694, 10.1175/JPO-D-19-0218.1.Team, The IMBIE ( 2020 )., Nature, 7798 ( 579 ), 233-239, 10.1038/s41586-019-1855-2.Wunsch, Carl ( 2020 )., Journal of Physical Oceanography, 11 ( 50 ), 3205-3217, 10.1175/JPO-D-20-0082.1.Wang, Yingying ; Luo, Yiyong ( 2020 )., Climate Dynamics, 5-6 ( 54 ), 3185-3200, 10.1007/s00382-020-05164-y.Xing, Qinwang ; Yu, Huaming ; Yu, Haiqing ; Sun, Peng ; Liu, Yang ; Ye, Zhenjiang ; Li, Jianchao ; Tian, Yongjun ( 2020 )., ecological Indicators ( 116 ), 106479, 10.1016/j.ecolind.2020.106479.Johns, Elizabeth M. ; Lumpkin, Rick ; Putman, Nathan F. ; Smith, Ryan H. ; Muller-Karger, Frank E. ; T. Rueda-Roa, Digna ; Hu, Chuanmin ; Wang, Mengqiu ; Brooks, Maureen T. ; Gramer, Lewis J. ; Werner, Francisco E. ( 2020 )., Progress in Oceanography ( 182 ), 102269, 10.1016/j.pocean.2020.102269.Loose, N. ; Heimbach, P. ; Pillar, H. R. ; Nisancioglu, K. H. ( 2020 )., Journal of Geophysical Research : Oceans ( e2020JC016 ), 10.1029/2020JC016112.Rigby, S.J. ; Williams, R.G. ; Achterberg, E.P. ; Tagliabue, A. ( 2020 )., Global Biogeochemical Cycles, 7 ( 34 ), 10.1029/2019GB006497.Buongiorno Nardelli, Bruno ( 2020 )., Earth System Science Data, 3 ( 12 ), 1711-1723, 10.5194/essd-12-1711-2020.Condron, Alan ; Joyce, Anthony J. ; Bradley, Raymond S. ( 2020 )., Geology, 4 ( 48 ), 395-399, 10.1130/G47016.1.Juranek, Lauren W. ; White, Angelicque E. ; Dugenne, Mathilde ; Henderikx Freitas, Fernanda ; Dutkiewicz, Stephanie ; Ribalet, Francois ; Ferrón, Sara ; Armbrust, E. Virginia ; Karl, David M. ( 2020 )., Global Biogeochemical Cycles, 12 ( 34 ), 10.1029/2020GB006702.Dutkiewicz, Stephanie ; Cermeno, Pedro ; Jahn, Oliver ; Follows, Michael J. ; Hickman, Anna E. ; Taniguchi, Darcy A. A. ; Ward, Ben A. ( 2020 )., Biogeosciences, 3 ( 17 ), 609-634, 10.5194/bg-17-609-2020.Shan, Xuan ; Jing, Zhao ; Sun, Bingrong ; Wu, Lixin ( 2020 )., Geoscience Letters, 1 ( 7 ), 3, 10.1186/s40562-020-00152-w.Wineteer, Alexander ; Torres, Hector S. ; Rodriguez, Ernesto ( 2020 )., Geophysical Research Letters, 21 ( 47 ), 10.1029/2020GL090116.Nagai, T. ; Hibiya, T. ( 2020 )., Journal of Geophysical Research : Oceans, 11 ( 125 ), 10.1029/2020JC016314.Petäjä, Tuukka ; Duplissy, Ella-Maria ; Tabakova, Ksenia ; Schmale, Julia ; Altstädter, Barbara ; Ancellet, Gerard ; Arshinov, Mikhail ; Balin, Yurii ; Baltensperger, Urs ; Bange, Jens ; Beamish, Alison ; Belan, Boris ; Berchet, Antoine ; Bossi, Rossana ; Cairns, Warren R. L. ; Ebinghaus, Ralf ; El Haddad, Imad ; Ferreira-Araujo, Beatriz ; Franck, Anna ; Huang, Lin ; Hyvärinen, Antti ; Humbert, Angelika ; Kalogridis, Athina-Cerise ; Konstantinov, Pavel ; Lampert, Astrid ; MacLeod, Matthew ; Magand, Olivier ; Mahura, Alexander ; Marelle, Louis ; Masloboev, Vladimir ; Moisseev, Dmitri ; Moschos, Vaios ; Neckel, Niklas ; Onishi, Tatsuo ; Osterwalder, Stefan ; Ovaska, Aino ; Paasonen, Pauli ; Panchenko, Mikhail ; Pankratov, Fidel ; Pernov, Jakob B. ; Platis, Andreas ; Popovicheva, Olga ; Raut, Jean-Christophe ; Riandet, Aurélie ; Sachs, Torsten ; Salvatori, Rosamaria ; Salzano, Roberto ; Schröder, Ludwig ; Schön, Martin ; Shevchenko, Vladimir ; Skov, Henrik ; Sonke, Jeroen E. ; Spolaor, Andrea ; Stathopoulos, Vasileios K. ; Strahlendorff, Mikko ; Thomas, Jennie L. ; Vitale, Vito ; Vratolis, Sterios ; Barbante, Carlo ; Chabrillat, Sabine ; Dommergue, Aurélien ; Eleftheriadis, Konstantinos ; Heilimo, Jyri ; Law, Kathy S. ; Massling, Andreas ; Noe, Steffen M. ; Paris, Jean-Daniel ; Prévôt, André S. H. ; Riipinen, Ilona ; Wehner, Birgit ; Xie, Zhiyong ; Lappalainen, Hanna K. ( 2020 )., atmospheric Chemistry and Physics, 14 ( 20 ), 8551-8592, 10.5194/acp-20-8551-2020.Zemskova, Varvara E. ; White, Brian L. ; Scotti, Alberto ( 2020 )., Journal of Physical Oceanography, 10.1175/JPO-D-19-0169.1.Leconte, Jade ; Benites, L. Felipe ; Vannier, Thomas ; Wincker, Patrick ; Piganeau, Gwenael ; Jaillon, Olivier ( 2020 )., Genes, 1 ( 11 ), 66, 10.3390/genes11010066.Huneke, Wilma Gertrud Charlotte ( 2019 )., University of Tasmania .Chatterjee, Abhisek ; Kumar, B. Praveen ; Prakash, Satya ; Singh, Prerna ( 2019 )., Scientific Reports, 1 ( 9 ), 7598, 10.1038/s41598-019-44099-1.Xiang, Yunfei ; Yue, Jianping ; Cong, Kanglin ; Xing, Yin ; Cai, Dongjian ( 2019 )., Pure and Applied Geophysics, 11 ( 176 ), 5051-5068, 10.1007/s00024-019-02251-y.Pham, Anh L.D. ; Ito, Takamitsu ( 2019 )., Geophysical Research Letters, 13 ( 46 ), 7500-7508, 10.1029/2019GL083319.Nissimov, Jozef I. ; Talmy, David ; Haramaty, Liti ; Fredricks, Helen F. ; Zelzion, Ehud ; Knowles, Ben ; Eren, A. Murat ; Vandzura, Rebecca ; Laber, Christien P. ; Schieler, Brittany M. ; Johns, Christopher T. ; More, Kuldeep D. ; Coolen, Marco J. L. ; Follows, Michael J. ; Bhattacharya, Debashish ; Van Mooy, Benjamin A. S. ; Bidle, Kay D. ( 2019 )., Environmental Microbiology, 6 ( 21 ), 2182-2197, 10.1111/1462-2920.14633.Zhang, Xianming ; Lohmann, Rainer ; Sunderland, Elsie M. ( 2019 )., Environmental Science & Technology, 21 ( 53 ), 12348-12356, 10.1021/acs.est.9b03230.Levang, Samuel J. ( 2019 )., Massachusetts Institute of Technology.Arumí Planas, Cristina ( 2019 )., IU de Oceanografía y Cambio Global.Viglione, Giuliana Augusta ( 2019 )., Caltech, 10.7907/CYRK-SB71.Nastula, Jolanta ; Wińska, Małgorzata ; Śliwińska, Justyna ; Salstein, David ( 2019 )., Journal of Geodynamics ( 124 ), 119-132, 10.1016/j.jog.2019.01.014.Guan, Cong ; Hu, Shijian ; McPhaden, Michael J. ; Wang, Fan ; Gao, Shan ; Hou, Yinglin ( 2019 )., Geophysical Research Letters, 21 ( 46 ), 12165-12172, 10.1029/2019GL084817.Xi, Hui ; Zhang, Zizhan ; Lu, Yang ( 2019 )., Journal of Coastal Research, 2 ( 36 ), 228, 10.2112/JCOASTRES-D-19-00078.1.Chang, Le ; Tang, He ; Yi, Shuang ; Sun, Wenke ( 2019 )., Geophysical Research Letters, 3 ( 46 ), 1250-1258, 10.1029/2018GL081652.Xi, Hui ; Zhang, Zizhan ; Lu, Yang ; Li, Yan ( 2019 )., Advances in Space Research, 1 ( 64 ), 117-128, 10.1016/j.asr.2019.03.027.Xu, Xinyu ; Ding, Hao ; Zhao, Yongqi ; Li, Jin ; Hu, Minzhang ( 2019 )., Remote Sensing, 11 ( 11 ), 1295, 10.3390/rs11111295.Freilich, Mara A. ; Mahadevan, Amala ( 2019 )., Journal of Physical Oceanography, 6 ( 49 ), 1561-1575, 10.1175/JPO-D-19-0002.1.Torres, H. S. ; Klein, P. ; Siegelman, L. ; Qiu, B. ; Chen, S. ; Ubelmann, C. ; Wang, J. ; Menemenlis, D. ; Fu, L.-L. ( 2019 )., Geophysical Research Letters, 15 ( 46 ), 8933-8942, 10.1029/2019GL083675.Yurganov, Leonid ; Muller-Karger, Frank ; Leifer, Ira ( 2019 )., Advances in Polar Science, 4 ( 30 ), 382-390, 10.13679/j.advps.2019.0024.Quinn, K J ; Ponte, R M ; Heimbach, P ; Fukumori, I ; Campin, Jean-Michel ( 2019 )., Geophysical Journal International, 1 ( 216 ), 584-597.Johnson, Helen L. ; Cessi, Paola ; Marshall, David P. ; Schloesser, Fabian ; Spall, Michael A. ( 2019 )., Journal of Geophysical Research : Oceans, 8 ( 124 ), 5376-5399, 10.1029/2019JC015330.Kostov, Yavor ; Johnson, Helen L. ; Marshall, David P. ( 2019 )., Climate Dynamics, 7-8 ( 53 ), 4521-4537, 10.1007/s00382-019-04802-4.Ott, Lesley ; Pawson, Steven ; Collatz, Jim ; Watson, Gregg ; Menemenlis, Dimitris ; Brix, Holger ; Rousseaux, Cecile ; Bowman, Kevin ; Liu, Junjie ; Eldering, Annmarie ; Gunson, Michael ; Kawa, Stephan R. ( 2019 ) .Sinha, Anirban ; Balwada, Dhruv ; Tarshish, Nathaniel ; Abernathey, Ryan ( 2019 )., Journal of Advances in Modeling Earth Systems, 2018MS001508, 10.1029/2018MS001508.Yu, Xiaolong ; Naveira Garabato, Alberto C. ; Martin, Adrian P ; Buckingham, Christian E ; Brannigan, Liam ; Su, Zhan ( 2019 )., Journal of Physical Oceanography, JPO-D-18-0253.1, 10.1175/JPO-D-18-0253.1.Callies, Jörn ; Wu, Weiguang ( 2019 )., Journal of Physical Oceanography, 9 ( 49 ), 2271-2289, 10.1175/JPO-D-18-0272.1.Klos, Anna ; Gruszczynska, Marta ; Bos, Machiel Simon ; Boy, Jean-paul ; Bogusz, Janusz ( 2019 )., Geodynamics and Earth Tides Observations from Global to Micro Scale, 229-246, 10.1007/978-3-319-96277-1_18.Hutter, Nils ; Zampieri, Lorenzo ; Losch, Martin ( 2019 )., The Cryosphere, 2 ( 13 ), 627-645, 10.5194/tc-13-627-2019.Ferster, Brady Scott ( 2019 ) .Sun, Qiwei ; Du, Yan ; Zhang, Yuhong ; Feng, Ming ; Chowdary, Jasti S. ; Chi, Jianwei ; Qiu, Shuang ; Yu, Weidong ( 2019 )., Journal of Geophysical Research : Oceans, 5 ( 124 ), 3428-3445, 10.1029/2018JC014580.Frajka-Williams, Eleanor ; Ansorge, Isabelle J. ; Baehr, Johanna ; Bryden, Harry L. ; Chidichimo, Maria Paz ; Cunningham, Stuart A. ; Danabasoglu, Gokhan ; Dong, Shenfu ; Donohue, Kathleen A. ; Elipot, Shane ; Heimbach, Patrick ; Holliday, N. Penny ; Hummels, Rebecca ; Jackson, Laura C. ; Karstensen, Johannes ; Lankhorst, Matthias ; Le Bras, Isabela A. ; Lozier, M. Susan ; McDonagh, Elaine L. ; Meinen, Christopher S. ; Mercier, Herlé ; Moat, Bengamin I. ; Perez, Renellys C. ; Piecuch, Christopher G. ; Rhein, Monika ; Srokosz, Meric A. ; Trenberth, Kevin E. ; Bacon, Sheldon ; Forget, Gael ; Goni, Gustavo ; Kieke, Dagmar ; Koelling, Jannes ; Lamont, Tarron ; McCarthy, Gerard D. ; Mertens, Christian ; Send, Uwe ; Smeed, David A. ; Speich, Sabrina ; van den Berg, Marcel ; Volkov, Denis ; Wilson, Chris ( 2019 )., Frontiers in Marine Science ( 6 ), 10.3389/fmars.2019.00260.Asbjørnsen, Helene ; Årthun, Marius ; Skagseth, Øystein ; Eldevik, Tor ( 2019 )., Journal of Geophysical Research : Oceans, 4 ( 124 ), 2908-2923, 10.1029/2018JC014649.Lebehot, Alice D. ; Halloran, Paul R. ; Watson, Andrew J. ; McNeall, Doug ; Ford, David A. ; Landschützer, Peter ; Lauvset, Siv K. ; Schuster, Ute ( 2019 )., Global Biogeochemical Cycles, 10 ( 33 ), 1204-1222, 10.1029/2019GB006186.Schnepf, Neesha Regmi ( 2019 ) .Chereskin, Teresa K. ; Rocha, Cesar B. ; Gille, Sarah T. ; Menemenlis, Dimitris ; Passaro, Marcello ( 2019 )., Journal of Geophysical Research : Oceans, 3 ( 124 ), 2088-2109, 10.1029/2018JC014583.Zhang, Y. ; Guan, Y. P. ( 2019 )., Geophysical Research Letters, 5 ( 46 ), hypertext transfer protocol : //doi.org/10.1029/2018GL081050.Li, Guancheng ; Zhang, Yuhong ; Xiao, Jingen ; Song, Xiangzhou ; Abraham, John ; Cheng, Lijing ; Zhu, Jiang ( 2019 )., Climate Dynamics, 9 ( 53 ), 6055-6074, 10.1007/s00382-019-04912-z.Sinha, Anirban ( 2019 ) .Wang, Jinbo ; Fu, Lee-Lueng ; Torres, Hector S. ; Chen, Shuiming ; Qiu, Bo ; Menemenlis, Dimitris ( 2019 )., Journal of Atmospheric and Oceanic Technology, 1 ( 36 ), 87-99, 10.1175/JTECH-D-18-0119.1.Stanley, Geoffrey J. ( 2019 )., Ocean Modelling, 10.1016/j.ocemod.2019.01.008.Yu, Xiaolong ; Ponte, Aurélien L. ; Elipot, Shane ; Menemenlis, Dimitris ; Zaron, Edward D. ; Abernathey, Ryan ( 2019 )., Geophysical Research Letters, 16 ( 46 ), 9757-9766, 10.1029/2019GL083074.Trossman, D. S. ; Tyler, R. H. ( 2019 )., Journal of Geophysical Research : Oceans, 0 ( 0 ), 10.1029/2018JC014740.Ridenour, Natasha A. ; Hu, Xianmin ; Sydor, Kevin ; Myers, Paul G. ; Barber, David G. ( 2019 )., Geophysical Research Letters, 7 ( 46 ), 3891-3899, 10.1029/2019GL082344.Mu, Longjiang ; Liang, Xi ; Yang, Qinghua ; Liu, Jiping ; Zheng, Fei ( 2019 )., Journal of Glaciology, 253 ( 65 ), 813-821, 10.1017/jog.2019.55.Cessi, Paola ( 2019 )., Annual Review of Marine Science, 1 ( 11 ), 249-270, 10.1146/annurev-marine-010318-095241.Sutterley, Tyler C. ; Velicogna, Isabella ( 2019 )., Remote Sensing, 18 ( 11 ), 2108, 10.3390/rs11182108.Liu, Chao ( 2019 ) .Cao, Haijin ; Jing, Zhiyou ; Fox-Kemper, Baylor ; Yan, Tong ; Qi, Yiquan ( 2019 )., Journal of Geophysical Research : Oceans, 12 ( 124 ), 9364-9383, 10.1029/2019JC015575.Caputi, Luigi ; Carradec, Quentin ; Eveillard, Damien ; Kirilovsky, Amos ; Pelletier, Eric ; Pierella Karlusich, Juan J. ; Rocha Jimenez Vieira, Fabio ; Villar, Emilie ; Chaffron, Samuel ; Malviya, Shruti ; Scalco, Eleonora ; Acinas, Silvia G. ; Alberti, Adriana ; Aury, Jean Marc ; Benoiston, Anne Sophie ; Bertrand, Alexis ; Biard, Tristan ; Bittner, Lucie ; Boccara, Martine ; Brum, Jennifer R. ; Brunet, Christophe ; Busseni, Greta ; Carratalà, Anna ; Claustre, Hervé ; Coelho, Luis Pedro ; Colin, Sébastien ; D’Aniello, Salvatore ; Da Silva, Corinne ; Del Core, Marianna ; Doré, Hugo ; Gasparini, Stéphane ; Kokoszka, Florian ; Jamet, Jean Louis ; Lejeusne, Christophe ; Lepoivre, Cyrille ; Lescot, Magali ; Lima-Mendez, Gipsi ; Lombard, Fabien ; Lukeš, Julius ; Maillet, Nicolas ; Madoui, Mohammed Amin ; Martinez, Elodie ; Mazzocchi, Maria Grazia ; Néou, Mario B. ; Paz-Yepes, Javier ; Poulain, Julie ; Ramondenc, Simon ; Romagnan, Jean Baptiste ; Roux, Simon ; Salvagio Manta, Daniela ; Sanges, Remo ; Speich, Sabrina ; Sprovieri, Mario ; Sunagawa, Shinichi ; Taillandier, Vincent ; Tanaka, Atsuko ; Tirichine, Leila ; Trottier, Camille ; Uitz, Julia ; Veluchamy, Alaguraj ; Veselá, Jana ; Vincent, Flora ; Yau, Sheree ; Kandels-Lewis, Stefanie ; Searson, Sarah ; Dimier, Céline ; Picheral, Marc ; Bork, Peer ; Boss, Emmanuel ; de Vargas, Colomban ; Follows, Michael J. ; Grimsley, Nigel ; Guidi, Lionel ; Hingamp, Pascal ; Karsenti, Eric ; Sordino, Paolo ; Stemmann, Lars ; Sullivan, Matthew B. ; Tagliabue, Alessandro ; Zingone, Adriana ; Garczarek, Laurence ; D’Ortenzio, Fabrizio ; Testor, Pierre ; not, Fabrice ; D’Alcalà, Maurizio Ribera ; Wincker, Patrick ; Bowler, Chris ; Iudicone, Daniele ( 2019 )., Global Biogeochemical Cycles, 10.1029/2018GB006022.Liu, Chao ; Liang, Xinfeng ; Ponte, Rui M ; Vinogradova, Nadya ; Wang, Ou ( 2019 )., Nature Communications, 1 ( 10 ), 3445, 10.1038/s41467-019-11436-x.Fu, Yao ; Wang, Chunzai ; Brandt, Peter ; Greatbatch, Richard J. ( 2019 )., Journal of Geophysical Research : Oceans, 6 ( 124 ), 4044-4057, 10.1029/2018JC014878.Hutter, Nils ( 2019 ) .Brown, Nicola Jane ; Nilsson, Johan ; Pemberton, Per ( 2019 )., Journal of Geophysical Research : Oceans, 7 ( 124 ), 5205-5219, 10.1029/2018JC014923.Liang, Xi ; Losch, Martin ; Nerger, Lars ; Mu, Longjiang ; Yang, Qinghua ; Liu, Chengyan ( 2019 )., Journal of Geophysical Research : Oceans, 7 ( 124 ), 4727-4743, 10.1029/2019JC015073.Mikolaj, M. ; Reich, M. ; Güntner, A. ( 2019 )., Journal of Geophysical Research : solid Earth, 10.1029/2018JB016682.Storto, Andrea ; Alvera-Azcárate, Aida ; Balmaseda, Magdalena A. ; Barth, Alexander ; Chevallier, Matthieu ; Counillon, Francois ; Domingues, Catia M. ; Drevillon, Marie ; Drillet, Yann ; Forget, Gaël ; Garric, Gilles ; Haines, Keith ; Hernandez, Fabrice ; Iovino, Doroteaciro ; Jackson, Laura C. ; Lellouche, Jean-Michel ; Masina, Simona ; Mayer, Michael ; Oke, Peter R. ; Penny, Stephen G. ; Peterson, K. Andrew ; Yang, Chunxue ; Zuo, Hao ( 2019 )., Frontiers in Marine Science ( 6 ), 10.3389/fmars.2019.00418.Doddridge, Edward W. ; Meneghello, Gianluca ; Marshall, John ; Scott, Jeffery ; Lique, Camille ( 2019 )., Journal of Geophysical Research : Oceans, 10.1029/2018JC014897.Wang, Zhaomin ; Turner, John ; Wu, Yang ; Liu, Chengyan ( 2019 )., Journal of Climate, 17 ( 32 ), 5381-5395, 10.1175/JCLI-D-18-0635.1.Erickson, Zachary K. ( 2019 ) .Ruan, Xiaozhou ( 2019 ) .LIANG, QI ; ZHOU, CHUNXIA ; HOWAT, IAN M. ; JEONG, SEONGSU ; LIU, RUIXI ; CHEN, YIMING ( 2019 )., Journal of Glaciology ( 65 ) .O’Callaghan, B. ; Chabchoub, A. ; Waseda, T. ( 2019 )., Advances in renewable Energies offshore, 31-38.Ardhuin, Fabrice ; Brandt, Peter ; Gaultier, Lucile ; Donlon, Craig ; Battaglia, Alessandro ; Boy, François ; Casal, Tania ; Chapron, Bertrand ; Collard, Fabrice ; Cravatte, Sophie ; Delouis, Jean-Marc ; De Witte, Erik ; Dibarboure, Gerald ; Engen, Geir ; Johnsen, Harald ; Lique, Camille ; Lopez-Dekker, Paco ; Maes, Christophe ; Martin, Adrien ; Marié, Louis ; Menemenlis, Dimitris ; Nouguier, Frederic ; Peureux, Charles ; Rampal, Pierre ; Ressler, Gerhard ; Rio, Marie-Helene ; Rommen, Bjorn ; Shutler, Jamie D. ; Suess, Martin ; Tsamados, Michel ; Ubelmann, Clement ; avant-garde Sebille, Erik ; van den Oever, Martin ; Stammer, Detlef ( 2019 )., Frontiers in Marine Science ( 6 ), 10.3389/fmars.2019.00209.Peng, Qihua ; Xie, Shang-Ping ; Wang, Dongxiao ; Zheng, Xiao-Tong ; Zhang, Hong ( 2019 )., Nature Communications, 1 ( 10 ), 298, 10.1038/s41467-018-08258-8.Mason, Evan ; Ruiz, Simón ; Bourdalle-Badie, Romain ; Reffray, Guillaume ; García-Sotillo, Marcos ; Pascual, Ananda ( 2019 )., Ocean Science, 4 ( 15 ), 1111-1131, 10.5194/os-15-1111-2019.Qiu, Bo ; Chen, Shuiming ; Powell, Brian ; Colin, Patrick ; Rudnick, Daniel ; Schönau, Martha ( 2019 )., Oceanography, 4 ( 32 ), 22-31, 10.5670/oceanog.2019.408.Yang, Haiyuan ; Chang, Ping ; Qiu, Bo ; Zhang, Qiuying ; Wu, Lixin ; Chen, Zhaohui ; Wang, Hong ( 2019 )., Journal of Climate, 24 ( 32 ), 8659-8676, 10.1175/JCLI-D-19-0155.1.Wu, Fan ; Cornillon, Peter ; Guan, Lei ; Kilpatrick, Katherine ( 2019 )., Remote Sensing, 7 ( 11 ), 844, 10.3390/rs11070844.Piecuch, C. G. ; Calafat, F. M. ; Dangendorf, S. ; Jordà, G. ( 2019 )., Surveys in Geophysics, 6 ( 40 ), 1399-1435, 10.1007/s10712-019-09537-9.Wagner, Charlotte C. ; Amos, Helen M. ; Thackray, Colin P. ; Zhang, Yanxu ; Lundgren, Elizabeth W. ; Forget, Gael ; Friedman, Carey L. ; Selin, Noelle E. ; Lohmann, Rainer ; Sunderland, Elsie M. ( 2019 )., Global Biogeochemical Cycles, 3 ( 33 ), 469-481, 10.1029/2018GB006018.Huang, Thomas ; DeBellis, Maya ; Fenty, Ian ; Heimbach, Patrick ; Jacob, Joseph C. ; Wang, Ou ; Yam, Elizabeth ( 2019 )., IGARSS 2019 – 2019 IEEE International Geoscience and Remote Sensing Symposium, 5355-5358, 10.1109/IGARSS.2019.8897904.Chi, J ; Du, Y ; Zhang, Y ; Nie, X ; Shi, P ; Qu, T ( 2019 )., Scientific Reports, 1 ( 9 ), 2720, 10.1038/s41598-019-38743-z.Volkov, Denis L. ; Lee, Sang-Ki ; Domingues, Ricardo ; Zhang, Hong ; Goes, Marlos ( 2019 )., Geophysical Research Letters, 13 ( 46 ), 7481-7490, 10.1029/2019GL083596.Zhang, Yanxu ; Horowitz, Hannah ; Wang, Jiancheng ; Xie, Zhouqing ; Kuss, Joachim ; Soerensen, Anne L. ( 2019 )., Environmental Science & Technology, 9 ( 53 ), 5052-5061, 10.1021/acs.est.8b06205.Guo, Haihong ; Chen, Zhaohui ; Yang, Haiyuan ( 2019 )., Journal of Geophysical Research : Oceans, 7 ( 124 ), 4557-4571, 10.1029/2019JC015019.Sonnewald, Maike ; Wunsch, Carl ; Heimbach, Patrick ( 2019 )., Earth and Space Science, 5 ( 6 ), 784-794, 10.1029/2018EA000519.Khazendar, Ala ; Fenty, Ian G. ; Carroll, Dustin ; Gardner, Alex ; Lee, Craig M. ; Fukumori, Ichiro ; Wang, Ou ; Zhang, Hong ; Seroussi, Hélène ; Moller, Delwyn ; Noël, Brice P.Y. ; van den Broeke, Michiel R. ; Dinardo, Steven ; Willis, Josh ( 2019 )., Nature Geoscience, 4 ( 12 ), 277-283, 10.1038/s41561-019-0329-3.Dushaw, Brian D. ( 2019 )., Journal of Atmospheric and Oceanic Technology, 2 ( 36 ), 183-202, 10.1175/JTECH-D-18-0082.1.Amin, Hadi ; Sjöberg, Lars E. ; Bagherbandi, Mohammad ( 2019 )., Journal of Geodesy, 10 ( 93 ), 1943-1961, 10.1007/s00190-019-01293-3.Kuhn, A. M. ; Dutkiewicz, Stephanie ; Jahn, O. ; Clayton, S. ; Rynearson, T. A. ; Mazloff, M. R. ; Barton, A. D. ( 2019 )., Journal of Geophysical Research : Oceans, 12 ( 124 ), 9417-9438, 10.1029/2019JC015331.Yang, Qinghua ; Mu, Longjiang ; Wu, Xingren ; Liu, Jiping ; Zheng, Fei ; Zhang, Jinlun ; Li, Chuanjin ( 2019 )., Atmospheric Research ( 227 ), 14-23, 10.1016/j.atmosres.2019.04.021.Denvil-Sommer, Anna ; Gehlen, Marion ; Vrac, Mathieu ; Mejia, Carlos ( 2019 )., Geoscientific Model Development, 5 ( 12 ), 2091-2105, 10.5194/gmd-12-2091-2019.Wang, Jinbo ; Fu, Lee-Lueng ( 2019 )., Journal of Atmospheric and Oceanic Technology, 10.1175/jtech-d-18-0148.1.Jones, Daniel C. ; Boland, Emma ; Meijers, Andrew J.S. ; Forget, Gael ; Josey, Simon A. ; Sallee, Jean-Baptiste ; Shuckburgh, Emily ( 2019 )., Journal of Geophysical Research : Oceans, 12 ( 124 ), 8647-8666, 10.1029/2019JC015460.Vinogradova, Nadya ; Lee, Tong ; Boutin, Jacqueline ; Drushka, Kyla ; Fournier, Severine ; Sabia, Roberto ; Stammer, Detlef ; Bayler, Eric ; Reul, Nicolas ; Gordon, Arnold ; Melnichenko, Oleg ; Li, Laifang ; Hackert, Eric ; Martin, Matthew ; Kolodziejczyk, Nicolas ; Hasson, Audrey ; Brown, Shannon ; Misra, Sidharth ; Lindstrom, Eric ( 2019 )., Frontiers in Marine Science ( 6 ), 10.3389/fmars.2019.00243.Chen, Jianli ; Wilson, Clark R. ; Kuang, Weijia ; Chao, Benjamin F. ( 2019 )., Journal of Geophysical Research : solid Earth, 12 ( 124 ), 13404-13414, 10.1029/2019JB018541.Ponsoni, Leandro ; Massonnet, François ; Fichefet, Thierry ; Chevallier, Matthieu ; Docquier, David ( 2019 )., The Cryosphere, 2 ( 13 ), 521-543, 10.5194/tc-13-521-2019.Nakayama, Yoshihiro ; Manucharyan, Georgy ; Zhang, Hong ; Dutrieux, Pierre ; Torres, Hector S. ; Klein, Patrice ; Seroussi, Helene ; Schodlok, Michael ; Rignot, Eric ; Menemenlis, Dimitris ( 2019 )., Scientific Reports, 1 ( 9 ), 16649, 10.1038/s41598-019-53190-6.Qu, Tangdong ; Fukumori, Ichiro ; Fine, Rana A. ( 2019 )., Journal of Geophysical Research : Oceans ( 124 ), 2018JC014391, 10.1029/2018JC014391.Storto, Andrea ; Bonaduce, Antonio ; Feng, Xiangbo ; Yang, Chunxue ( 2019 )., Water, 10 ( 11 ), 1987, 10.3390/w11101987.Strehl, Anna-Marie ( 2019 ) .WANG, Zhaomin ; CHEN, Dake ( 2019 )., Science China Earth Sciences, hypertext transfer protocol : //doi.org/10.1007/s11430-018-9355-2.Wei, Jianfen ; Zhang, Xiangdong ; Wang, Zhaomin ( 2019 )., Climate Dynamics, 10.1007/s00382-019-04741-0.Carton, James A ; Penny, Stephen G ; Kalnay, Eugenia ( 2019 )., Journal of Climate, 8 ( 32 ), 2277-2293, 10.1175/JCLI-D-18-0605.1.Fujii, Yosuke ; Rémy, Elisabeth ; Zuo, Hao ; Oke, Peter ; Halliwell, George ; Gasparin, Florent ; Benkiran, Mounir ; Loose, Nora ; Cummings, James ; Xie, Jiping ; Xue, Yan ; Masuda, Shuhei ; Smith, Gregory C. ; Balmaseda, Magdalena ; Germineaud, Cyril ; Lea, Daniel J. ; Larnicol, Gilles ; Bertino, Laurent ; Bonaduce, Antonio ; Brasseur, Pierre ; Donlon, Craig ; Heimbach, Patrick ; Kim, YoungHo ; Kourafalou, Villy ; Le Traon, Pierre-Yves ; Martin, Matthew ; Paturi, Shastri ; Tranchant, Benoit ; Usui, Norihisa ( 2019 )., Frontiers in Marine Science ( 6 ), 10.3389/fmars.2019.00417.Xi, Hui ; Zhang, Zizhan ; Lu, Yang ; Li, Yan ( 2019 )., Journal of Coastal Research, 10.2112/JCOASTRES-D-18-00080.1.Gruszczynska, Marta ; Rosat, Severine ; Klos, Anna ; Gruszczynski, Maciej ; Bogusz, Janusz ( 2019 )., Geodynamics and Earth Tides Observations from Global to Micro Scale, 211-228, 10.1007/978-3-319-96277-1_17.Yang, Shengmu ; Xing, Jiuxing ; Sheng, Jinyu ; Chen, Shengli ; Chen, Daoyi ( 2019 )., Journal of Marine Systems, 10.1016/j.jmarsys.2019.02.009.Tang, Yi ; Stewart, Gillian ( 2019 )., Marine Chemistry ( 217 ), 103692, 10.1016/j.marchem.2019.103692.Yang, Yang ; Liang, X. San ( 2019 )., Science China Earth Sciences, 10.1007/s11430-018-9289-4.Flexas, M. Mar ; Thompson, Andrew F. ; Torres, Hector S. ; Klein, Patrice ; Farrar, J. Thomas ; Zhang, Hong ; Menemenlis, Dimitris ( 2019 )., Journal of Geophysical Research : Oceans, 8 ( 124 ), 5723-5746, 10.1029/2018JC014453.Penny, Stephen G. ; Akella, Santha ; Balmaseda, Magdalena A. ; Browne, Philip ; Carton, James A. ; Chevallier, Matthieu ; Counillon, Francois ; Domingues, Catia ; Frolov, Sergey ; Heimbach, Patrick ; Hogan, Patrick ; Hoteit, Ibrahim ; Iovino, Doroteaciro ; Laloyaux, Patrick ; Martin, Matthew J. ; Masina, Simona ; Moore, Andrew M. ; de Rosnay, Patricia ; Schepers, Dinand ; Sloyan, Bernadette M. ; Storto, Andrea ; Subramanian, Aneesh ; Nam, SungHyun ; Vitart, Frederic ; Yang, Chunxue ; Fujii, Yosuke ; Zuo, Hao ; O’Kane, Terry ; Sandery, Paul ; Moore, Thomas ; Chapman, Christopher C. ( 2019 )., Frontiers in Marine Science ( 6 ), 10.3389/fmars.2019.00391.Zanna, Laure ; Khatiwala, Samar ; Gregory, Jonathan M ; Ison, Jonathan ; Heimbach, Patrick ( 2019 )., Proceedings of the National Academy of Sciences, 4 ( 116 ), 1126 LP – 1131, 10.1073/pnas.1808838115.Manizza, Manfredi ; Menemenlis, Dimitris ; Zhang, Hong ; Miller, Charles E. ( 2019 )., Global Biogeochemical Cycles, 10.1029/2018GB006070.Zhao, Zhongxiang ; Wang, Jinbo ; Menemenlis, Dimitris ; Fu, Lee-Lueng ; Chen, Shuiming ; Qiu, Bo ( 2019 )., Journal of Atmospheric and Oceanic Technology, JTECH-D-19-0022.1, 10.1175/JTECH-D-19-0022.1.Pratt, Larry J. ; Voet, Gunnar ; Pacini, Astrid ; Tan, Shuwen ; Alford, Matthew H. ; Carter, Glenn S. ; Girton, James B. ; Menemenlis, Dimitris ( 2019 )., Journal of Physical Oceanography, 6 ( 49 ), 1577-1592, 10.1175/JPO-D-18-0124.1.Tang, Yi ; Lemaitre, Nolwenn ; Castrillejo, Maxi ; Roca-Martí, Montserrat ; Masqué, Pere ; Stewart, Gillian ( 2019 )., Biogeosciences, 10.5194/bg-16-309-2019.Stewart, Andrew L. ; Klocker, Andreas ; Menemenlis, Dimitris ( 2019 )., Journal of Physical Oceanography, 8 ( 49 ), 2043-2074, 10.1175/JPO-D-18-0221.1.Mikolaj, Michal ; Güntner, Andreas ; Brunini, Claudio ; Wziontek, Hartmut ; Gende, Mauricio ; Schröder, Stephan ; Cassino, Augusto M. ; Pasquaré, Alfredo ; Reich, Marvin ; Hartmann, Anne ; Oreiro, Fernando A. ; Pendiuk, Jonathan ; Guarracino, Luis ; Antokoletz, Ezequiel D. ( 2019 )., Earth System Science Data, 4 ( 11 ), 1501-1513, 10.5194/essd-11-1501-2019.Alexander-Astiz Le Bras, Isabela ; Sonnewald, Maike ; Toole, John M. ( 2019 )., Journal of Physical Oceanography, 11 ( 49 ), 2781-2797, 10.1175/JPO-D-19-0111.1.Jyoti, J. ; Swapna, P. ; Krishnan, R. ; Naidu, C. V. ( 2019 )., Climate Dynamics, hypertext transfer protocol : //doi.org/10.1007/s00382-019-04795-0.Hu, Shijian ; Zhang, Ying ; Feng, Ming ; Du, Yan ; Sprintall, Janet ; Wang, Fan ; Hu, Dunxin ; Xie, Qiang ; Chai, Fei ( 2019 )., Journal of Climate, 19 ( 32 ), 6403-6421, 10.1175/JCLI-D-19-0056.1.Ibarbalz, Federico M. ; Henry, Nicolas ; Brandão, Manoela C. ; Martini, Séverine ; Busseni, Greta ; Byrne, Hannah ; Coelho, Luis Pedro ; Endo, Hisashi ; Gasol, Josep M. ; Gregory, Ann C. ; Mahé, Frédéric ; Rigonato, Janaina ; Royo-Llonch, Marta ; Salazar, Guillem ; Sanz-Sáez, Isabel ; Scalco, Eleonora ; Soviadan, Dodji ; Zayed, Ahmed A. ; Zingone, Adriana ; Labadie, Karine ; Ferland, Joannie ; Marec, Claudie ; Kandels, Stefanie ; Picheral, Marc ; Dimier, Céline ; Poulain, Julie ; Pisarev, Sergey ; Carmichael, Margaux ; Pesant, Stéphane ; Babin, Marcel ; Boss, Emmanuel ; Iudicone, Daniele ; Jaillon, Olivier ; Acinas, Silvia G. ; Ogata, Hiroyuki ; Pelletier, Eric ; Stemmann, Lars ; Sullivan, Matthew B. ; Sunagawa, Shinichi ; Bopp, Laurent ; de Vargas, Colomban ; Karp-Boss, Lee ; Wincker, Patrick ; Lombard, Fabien ; Bowler, Chris ; Zinger, Lucie ; Acinas, Silvia G. ; Babin, Marcel ; Bork, Peer ; Boss, Emmanuel ; Bowler, Chris ; Cochrane, Guy ; de Vargas, Colomban ; Follows, Mick ; Gorsky, Gabriel ; Grimsley, Nigel ; Guidi, Lionel ; Hingamp, Pascal ; Iudicone, Daniele ; Jaillon, Olivier ; Kandels, Stefanie ; Karp-Boss, Lee ; Karsenti, Eric ; not, Fabrice ; Ogata, Hiroyuki ; Pesant, Stéphane ; Poulton, Nicole ; Raes, Jeroen ; Sardet, Christian ; Speich, Sabrina ; Stemmann, Lars ; Sullivan, Matthew B. ; Sunagawa, Shinichi ; Wincker, Patrick ( 2019 )., Cell, 5 ( 179 ), 1084-1097.e21, 10.1016/j.cell.2019.10.008.Nie, Xunwei ; Gao, Shan ; Wang, Fan ; Chi, Jianwei ; Qu, Tangdong ( 2019 )., Journal of Geophysical Research : Oceans, ja ( 0 ), 10.1029/2018JC014212.Piecuch, Christopher G ; Thompson, Philip R ; Ponte, Rui M ; Merrifield, Mark A ; Hamlington, Benjamin D ( 2019 )., Journal of Geophysical Research : Oceans, 11 ( 124 ), 7575-7590, 10.1029/2019JC015339.Klein, Patrice ; Lapeyre, Guillaume ; Siegelman, Lia ; Qiu, Bo ; Fu, Lee-Lueng ; Torres, Hector ; Su, Zhan ; Menemenlis, Dimitris ; Le Gentil, Sylvie ( 2019 )., Earth and Space Science, 2018EA000492, 10.1029/2018EA000492.Howe, Bruce M. ; Miksis-Olds, Jennifer ; Rehm, Eric ; Sagen, Hanne ; Worcester, Peter F. ; Haralabus, Georgios ( 2019 )., Frontiers in Marine Science ( 6 ), 10.3389/fmars.2019.00426.Siegfried, Lydia ; Schmidt, Martin ; Mohrholz, Volker ; Pogrzeba, Hans ; Nardini, Pascal ; Böttinger, Michael ; Scheuermann, Gerik ( 2019 )., PLoS ONE, 10.1371/journal.pone.0210083.Wu, Quran ; Zhang, Xuebin ; Church, John A ; Hu, Jianyu ( 2019 )., Journal of Climate, 1 ( 32 ), 45-68, 10.1175/JCLI-D-17-0861.1.Stanley, Geoffrey J. ( 2019 )., Ocean Modelling ( 138 ), 107-121, 10.1016/j.ocemod.2019.04.002.Schulze Chretien, Lena M. ; Speer, Kevin ( 2019 )., Journal of Geophysical Research : Oceans, 1 ( 124 ), 27-40, 10.1029/2018JC014400.Jackson, L. C. ; Dubois, C. ; Forget, G. ; Haines, K. ; Harrison, M. ; Iovino, D. ; Köhl, A. ; Mignac, D. ; Masina, S. ; Peterson, K. A. ; Piecuch, C. G. ; Roberts, C. D. ; Robson, J. ; Storto, A. ; Toyoda, T. ; Valdivieso, M. ; Wilson, C. ; Wang, Y. ; Zuo, H. ( 2019 )., Journal of Geophysical Research : Oceans, 12 ( 124 ), 9141-9170, 10.1029/2019JC015210.Ding, Yang ; Bao, Xianwen ; Yao, Zhigang ; Bi, Congcong ; Wan, Kai ; Bao, Min ; Jiang, Zhipeng ; Song, Jun ; Gao, Jia ( 2019 )., Ocean Dynamics, 10.1007/s10236-019-01247-5.Springer, Anne ; Karegar, Makan A. ; Kusche, Jürgen ; Keune, Jessica ; Kurtz, Wolfgang ; Kollet, Stefan ( 2019 )., Journal of Geodesy, 10 ( 93 ), 2145-2153, 10.1007/s00190-019-01295-1.Chi, Lequan ( 2019 ) .Heimbach, Patrick ; Fukumori, Ichiro ; Hill, Christopher N. ; Ponte, Rui M. ; Stammer, Detlef ; Wunsch, Carl ; Campin, Jean-Michel ; Cornuelle, Bruce ; Fenty, Ian ; Forget, Gaël ; Köhl, Armin ; Mazloff, Matthew ; Menemenlis, Dimitris ; Nguyen, An T. ; Piecuch, Christopher ; Trossman, David ; Verdy, Ariane ; Wang, Ou ; Zhang, Hong ( 2019 )., Frontiers in Marine Science ( 6 ), 55, 10.3389/fmars.2019.00055.Forget, Gaël ; Ferreira, David ( 2019 )., Nature Geoscience, 1, 10.1038/s41561-019-0333-7.Min, Chao ; Mu, Longjiang ; Yang, Qinghua ; Ricker, Robert ; Shi, Qian ; Han, Bo ; Wu, Renhao ; Liu, Jiping ( 2019 )., The Cryosphere, 12 ( 13 ), 3209-3224, 10.5194/tc-13-3209-2019.Klein, E. ; Duputel, Z. ; Zigone, D. ; Vigny, C. ; Boy, J.-P. ; Doubre, C. ; Meneses, G. ( 2018 )., Geophysical Research Letters, 22 ( 45 ), 12,263-12,273, 10.1029/2018GL080613.Zakem, Emily J. ; Al-Haj, Alia ; Church, Matthew J. ; avant-garde Dijken, Gert L. ; Dutkiewicz, Stephanie ; Foster, Sarah Q. ; Fulweiler, Robinson W. ; Mills, Matthew M. ; Follows, Michael J. ( 2018 )., Nature Communications, 1 ( 9 ), 1206, 10.1038/s41467-018-03553-w.Dutkiewicz, Stephanie ; Hickman, Anna E. ; Jahn, Oliver ( 2018 )., Biogeosciences, 2 ( 15 ), 613-630, 10.5194/bg-15-613-2018.Pham, Anh L.D. ; Ito, Takamitsu ( 2018 )., Global Biogeochemical Cycles, 6 ( 32 ), 932-953, 10.1029/2017GB005852.Follett, Christopher L. ; Dutkiewicz, Stephanie ; Karl, David M. ; Inomura, Keisuke ; Follows, Michael J. ( 2018 )., The ISME Journal, 6 ( 12 ), 1543-1557, 10.1038/s41396-017-0012-x.Srinivas, G. ; Chowdary, Jasti S. ; Gnanaseelan, C. ; Prasad, K.V.S.R. ; Karmakar, Ananya ; Parekh, Anant ( 2018 )., Climate Dynamics, 5-6 ( 50 ), 1659-1673, 10.1007/s00382-017-3713-y.Chen, Yue-Liang ; Yan, Chang-Xiang ; Zhu, Jiang ; Li, Yi-Neng ( 2018 )., Atmospheric and Oceanic Science, 4 ( 11 ), 345-351, 10.1080/16742834.2018.1490625.Mohajerani, Yara ; Velicogna, Isabella ; Rignot, Eric ( 2018 )., Geophysical Research Letters, 14 ( 45 ), 7010-7018, 10.1029/2018GL078173.Wei, Na ; Shi, Chuang ; Wang, Guangxing ; Liu, Jingnan ( 2018 )., Geophysical Journal International, 2 ( 212 ), 1274-1287, 10.1093/gji/ggx357.Wunsch, Carl ( 2018 )., Tellus A : Dynamic Meteorology and Oceanography, 1 ( 70 ), 1-14, 10.1080/16000870.2018.1471911.Lamona, Bernawis ; Hauck, Judith ; Völker, Christoph ( 2018 )., IOP Conference Series : earth and environmental Science ( 162 ), 012002, 10.1088/1755-1315/162/1/012002.Mouyen, Maxime ; Longuevergne, Laurent ; Steer, Philippe ; Crave, Alain ; Lemoine, Jean-Michel ; Save, Himanshu ; Robin, Cécile ( 2018 )., Nature Communications, 1 ( 9 ), 3384, 10.1038/s41467-018-05921-y.Lambert, Erwin ; Eldevik, Tor ; Spall, Michael A. ( 2018 )., Journal of Physical Oceanography, 10 ( 48 ), 2457-2475, 10.1175/JPO-D-17-0186.1.Choi, Youngmin ; Morlighem, Mathieu ; Wood, Michael ; Bondzio, Johannes H. ( 2018 )., The Cryosphere, 12 ( 12 ), 3735-3746, 10.5194/tc-12-3735-2018.Evans, Dafydd Gwyn ; Zika, Jan D ; Naveira Garabato, Alberto C ; Nurser, A J George ( 2018 )., Geophysical Research Letters, 24 ( 45 ), 13,313-386,395, 10.1029/2018GL079986.Chi, Lequan ; Wolfe, Christopher L.P. ; Hameed, Sultan ( 2018 )., Ocean Modelling ( 125 ), 1-21, 10.1016/j.ocemod.2018.02.008.Bondzio, Johannes H. ; Morlighem, Mathieu ; Seroussi, Hélène ; Wood, Michael H. ; Mouginot, Jérémie ( 2018 )., Geophysical Research Letters, 23 ( 45 ), 12,912-12,921, 10.1029/2018GL079827.Castellani, Giulia ; Losch, Martin ; Ungermann, Mischa ; Gerdes, Rüdiger ( 2018 )., Ocean Modelling ( 128 ), 48-66, 10.1016/j.ocemod.2018.06.002.Fu, Lee-Lueng ; Lee, Tong ; Liu, W. Timothy ; Kwok, Ronald ( 2018 )., meteorologic Monographs ( 59 ), 5.1-5.46, 10.1175/AMSMONOGRAPHS-D-18-0010.1.Liang, Xi ; Losch, Martin ( 2018 )., Journal of Geophysical Research : Oceans, April 2007 ( 2007 ), 1-17, 10.1029/2018JC014303.Torres, Hector S ; Klein, Patrice ; Menemenlis, Dimitris ; Qiu, Bo ; Su, Zhan ; Wang, Jinbo ; Chen, Shuiming ; Fu, Lee-Lueng ( 2018 )., J. Geophys. Res. Ocean., 11 ( 123 ), 8084-8105, 10.1029/2018JC014438.Wunsch, Carl ; Ferrari, Raffaele ( 2018 )., meteorologic Monographs ( 59 ), 7.1-7.32, 10.1175/AMSMONOGRAPHS-D-18-0002.1.Hartfield, Gail ; Blunden, Jessica ; Arndt, Derek S. ( 2018 )., Bulletin of the american Meteorological Society, 8 ( 99 ), Si-S310, 10.1175/2018BAMSStateoftheClimate.1.Yu, Nan ; Li, Jiancheng ; Ray, Jim ; Chen, Wei ( 2018 )., Geophysical Journal International, 3 ( 214 ), 1633-1651, 10.1093/gji/ggy204.Chamberlain, Paul ; Talley, Lynne D ; Mazloff, Matthew ; Riser, Stephen ; Speer, Kevin ; Gray, Alison R ; Schwartzman, Armin ( 2018 )., Journal of Geophysical Research : Oceans, ja, 10.1029/2017JC012990.Guo, Yongqing ; Lin, Xiaopei ; Wei, Meng ; Liu, Cong ; Men, Guang ( 2018 )., Journal of Geophysical Research : Oceans, 9 ( 123 ), 6189-6206, 10.1029/2018JC013890.Goldberg, D N ; Snow, K ; Holland, P ; Jordan, J R ; Campin, Jean-Michel ; Heimbach, P ; Arthern, R ; Jenkins, A ( 2018 )., Ocean Modelling ( 125 ), 45-60, 10.1016/j.ocemod.2018.03.005.Triest, Ludwig ; Sierens, Tim ; Menemenlis, Dimitris ; Van five hundred Stocken, Tom ( 2018 )., Frontiers in Plant Science ( 9 ), 10.3389/fpls.2018.00806.Piecuch, Christopher G ; Landerer, Felix W ; Ponte, Rui M ( 2018 )., Geophysical Journal International, 2 ( 214 ), 1401-1412, 10.1093/gji/ggy207.Craig, P. M. ( 2018 ) .Moteki, Qoosaku ; Katsumata, Masaki ; Yoneyama, Kunio ; Ando, Kentaro ; Hasegawa, Takuya ( 2018 )., Progress in Earth and Planetary Science, 1 ( 5 ), 35, 10.1186/s40645-018-0190-9.Dwivedi, Suneet ; Srivastava, Atul ; Mishra, Alok Kumar ( 2018 )., Marine Geodesy, 3 ( 41 ), 230-257, 10.1080/01490419.2017.1405128.Morlighem, Mathieu ; Wood, Michael ; Seroussi, Hélène ; Choi, Youngmin ; Rignot, Eric ( 2018 )., The Cryosphere Discussions, 1-18, 10.5194/tc-2018-214.Foukal, Nicholas Peter ( 2018 ) .Wińska, Małgorzata ; Śliwińska, Justyna ( 2018 )., Studia Geophysica et Geodaetica, 2019 ( 63 ), 10.1007/s11200-018-1028-z.Cole, Sylvia T. ( 2018 )., ALPS II – autonomous Lagrangian Platforms and Sensors. A report of the ALPS II Workshop, 25-27.Gregor, Luke ; Kok, Schalk ; Monteiro, Pedro M. S. ( 2018 )., Biogeosciences, 8 ( 15 ), 2361-2378, 10.5194/bg-15-2361-2018.Chen, Xiao ; Qiu, Bo ; Chen, Shuiming ; Cheng, Xuhua ; Qi, Yiquan ( 2018 )., Journal of Geophysical Research : Oceans, 7 ( 123 ), 4666-4679, 10.1029/2018JC013960.Zhao, Xia ; Yuan, Dongliang ; Yang, Guang ; Wang, Jing ; Liu, Hailong ; Zhang, Renhe ; Han, Weiqing ( 2018 )., Climate Dynamics, 10.1007/s00382-018-4383-0.Pianezze, J. ; Barthe, C. ; Bielli, S. ; Tulet, P. ; Jullien, S. ; Cambon, G. ; Bousquet, O. ; Claeys, M. ; Cordier, E. ( 2018 )., Journal of Advances in Modeling Earth Systems, 3 ( 10 ), 801-825, 10.1002/2017MS001177.Belonenko, T. V. ; Volkov, D. L. ; Koldunov, A. V. ( 2018 )., Oceanology, 6 ( 58 ), 778-785, 10.1134/S0001437018060024.Yang, Haiyuan ; Qiu, Bo ; Chang, Ping ; Wu, Lixin ; Wang, Shengpeng ; Chen, Zhaohui ; Yang, Yun ( 2018 )., Journal of Geophysical Research : Oceans, 9 ( 123 ), 6653-6669, 10.1029/2018JC014081.Talley, L D ; Rosso, I ; Kamenkovich, I ; Mazloff, M R ; Wang, J ; Boss, E ; Gray, A R ; Johnson, K S ; Key, R ; Riser, S C ; Williams, N L ; Sarmiento, J L ( 2018 )., Journal of Geophysical Research : Oceans.Fukumori, Ichiro ; Fenty, Ian ; Forget, Gael ; Heimbach, Patrick ; King, Charmaine ; Nguyen, An ( 2018 ) .Li, Q ; Lee, S ; Mazloff, M ( 2018 )., Geophysical Research Letters, 21 ( 45 ), 11866-11874, 10.1029/2018gl078950.Lyu, Yilong ; Li, Yuanlong ; Tang, Xiaohui ; Wang, Fan ; Wang, Jianing ( 2018 )., Geophysical Research Letters, 18 ( 45 ), 9748-9756, 10.1029/2018GL078915.Masich, Jessica ; Mazloff, Matthew R ; Chereskin, Teresa K ( 2018 )., Journal of Geophysical Research : Oceans, 5 ( 123 ), 3368-3385, 10.1029/2018JC013844.Lin, Xia ; Wang, Zhaomin ( 2018 )., Advances in Polar Science, 3 ( 29 ), 3-19, 10.13679/j.advps.2018.3.00003.Mu, Longjiang ; Yang, Qinghua ; Losch, Martin ; Losa, Svetlana N. ; Ricker, Robert ; Nerger, Lars ; Liang, Xi ( 2018 )., quarterly Journal of the Royal Meteorological Society, 711 ( 144 ), 529-538, 10.1002/qj.3225.Briggs, Ellen M ; Martz, Todd R ; Talley, Lynne D ; Mazloff, Matthew R ; Johnson, Kenneth S ( 2018 )., Journal of Geophysical Research : Oceans, 10.1002/2017JC012846.Mazloff, M. R. ; Cornuelle, B. D. ; Gille, S. T. ; Verdy, A. ( 2018 )., Journal of Geophysical Research : Oceans, 2 ( 123 ), 883-901, 10.1002/2017JC013408.Kumar, Ravi Prakash ; Nigam, Tanuja ; Pant, Vimlesh ( 2018 )., Ocean Science, 2 ( 14 ), 259-272, 10.5194/os-14-259-2018.Naughten, Kaitlin A. ; Meissner, Katrin J. ; Galton-Fenzi, Benjamin K. ; England, Matthew H. ; Timmermann, Ralph ; Hellmer, Hartmut H. ( 2018 )., Journal of Climate, 13 ( 31 ), 5243-5261, 10.1175/JCLI-D-17-0854.1.Greene, Chad A. ; Young, Duncan A. ; Gwyther, David E. ; Galton-Fenzi, Benjamin K. ; Blankenship, Donald D. ( 2018 )., The Cryosphere, 9 ( 12 ), 2869-2882, 10.5194/tc-12-2869-2018.Tesdal, Jan-Erik ; Abernathey, Ryan P. ; Goes, Joaquim I. ; Gordon, Arnold L. ; Haine, Thomas W. N. ( 2018 )., Journal of Climate, 7 ( 31 ), 2675-2698, 10.1175/JCLI-D-17-0532.1.Arbic, Brian K ; Alford, Matthew H ; Ansong, Joseph K ; Buijsman, Maarten C ; Ciotti, Robert B ; Farrar, J Thomas ; Hallberg, Robert W ; Henze, Christopher E ; Hill, Christopher N ; Luecke, Conrad A ; Menemenlis, Dimitris ; Metzger, E Joseph ; Müller, Malte ; Nelson, Arin D ; Nelson, Bron C ; Ngodock, Hans E ; Ponte, Rui M ; Richman, James G ; Savage, Anna C ; Scott, Robert B ; Shriver, Jay F ; Simmons, Harper L ; Souopgui, Innocent ; Timko, Patrick G ; Wallcraft, Allan J ; Zamudio, Luis ; Zhao, Zhongxiang ( 2018 )., New Front. Oper. Oceanogr., 307-392, 10.17125/gov2018.ch13.Zhu, Yanan ; Qiu, Bo ; Lin, Xiaopei ; Wang, Fan ( 2018 )., Journal of Geophysical Research : Oceans, 9 ( 123 ), 6449-6462, 10.1029/2018JC014333.Ardhuin, Fabrice ; Aksenov, Yevgueny ; Benetazzo, Alvise ; Bertino, Laurent ; Brandt, Peter ; Caubet, Eric ; Chapron, Bertrand ; Collard, Fabrice ; Cravatte, Sophie ; Delouis, Jean Marc ; Dias, Frederic ; Dibarboure, Gérald ; Gaultier, Lucile ; Johannessen, Johnny ; Korosov, Anton ; Manucharyan, Georgy ; Menemenlis, Dimitris ; Menendez, Melisa ; Monnier, Goulven ; Mouche, Alexis ; Nouguier, Frédéric ; Nurser, George ; Rampal, Pierre ; Reniers, Ad ; Rodriguez, Ernesto ; Stopa, Justin ; Tison, Céline ; Ubelmann, Clément ; van Sebille, Erik ; Xie, Jiping ( 2018 )., Ocean Sci., 3 ( 14 ), 337-354, 10.5194/os-14-337-2018.Hoteit, Ibrahim ; Luo, Xiaodong ; Bocquet, Marc ; Kӧhl, Armin ; Ait-El-Fquih, Boujemaa ( 2018 )., New Frontiers in Operational Oceanography, 465-511, 10.17125/gov2018.ch17.Wang, Tianyu ; Gille, Sarah T ; Mazloff, Matthew R ; Zilberman, Nathalie V ; Du, Yan ( 2018 )., Journal of Atmospheric and Oceanic TechnologyJournal of Atmospheric and Oceanic Technology.Foukal, Nicholas P ; Lozier, M Susan ( 2018 )., Geophysical Research Letters, 20 ( 45 ), 11,211-275,283, 10.1029/2018GL079122.Porter, David F. ; Tinto, Kirsty J. ; Boghosian, Alexandra L. ; Csatho, Beata M. ; Bell, Robin E. ; Cochran, James R. ( 2018 )., Frontiers in Earth Science ( 6 ), 10.3389/feart.2018.00090.Vigo, María ; García-García, David ; Sempere, María ; Chao, Ben ( 2018 )., Remote Sensing, 5 ( 10 ), 715, 10.3390/rs10050715.Zhang, Ying ; Feng, Ming ; Du, Yan ; Phillips, Helen E ; Bindoff, Nathaniel L ; McPhaden, Michael J ( 2018 )., Geophysical Research Letters, 12 ( 45 ), 6167-6175, 10.1029/2018GL078265.Śliwińska, Justyna ; Wińska, Małgorzata ; Nastula, Jolanta ( 2018 )., Acta Geophysica, 10.1007/s11600-018-0227-x.Nakayama, Yoshihiro ; Menemenlis, Dimitris ; Zhang, Hong ; Schodlok, Michael ; Rignot, Eric ( 2018 )., Nat. Commun., 1 ( 9 ), 3403, 10.1038/s41467-018-05813-1.Volkov, Denis L. ; Baringer, Molly ; Smeed, David ; Johns, William ; Landerer, Felix W. ( 2018 )., Journal of Climate, JCLI-D-18-0474.1, 10.1175/JCLI-D-18-0474.1.Hutter, Nils ; Losch, Martin ; Menemenlis, Dimitris ( 2018 )., Journal of Geophysical Research : Oceans, 1 ( 123 ), 672-687, 10.1002/2017JC013119.Jones, Daniel C ; Forget, Gael ; Sinha, Bablu ; Josey, Simon A ; Boland, Emma J D ; Meijers, Andrew J S ; Shuckburgh, Emily ( 2018 )., Journal of Geophysical Research : Oceans, 4 ( 123 ), 2646-2667, 10.1002/2018JC013774.Gruszczynska, Marta ; Rosat, Severine ; Klos, Anna ; Gruszczynski, Maciej ; Bogusz, Janusz ( 2018 )., Pure and Applied Geophysics, 5 ( 175 ), 1805-1822, 10.1007/s00024-018-1814-0.Su, Zhan ; Wang, Jinbo ; Klein, Patrice ; Thompson, Andrew F ; Menemenlis, Dimitris ( 2018 )., Nat. Commun., 775 ( 9 ), 1-8, 10.1038/s41467-018-02983-w.Swart, S ; Johnson, K ; Mazloff, M R ; Meijers, A ; Meredith, M P ; Newman, L ; Sallée, Jean-Baptiste ( 2018 )., Bull. Amer. Meteor. Soc. ( 99 ) .McParland, Erin L. ; Levine, Naomi M. ( 2018 )., Limnology and Oceanography, 10.1002/lno.11076.Yang, Peiran ; Jing, Zhao ; Wu, Lixin ( 2018 )., Geophysical Research Letters, 21 ( 45 ), 11,856-11,865, 10.1029/2018GL080678.Ungermann, Mischa ; Losch, Martin ( 2018 )., Journal of Geophysical Research : Oceans, 11 ( 123 ), 8052-8067, 10.1029/2018JC014022.Bashmachnikov, I. L. ; Yurova, A. Yu. ; Bobylev, L. P. ; Vesman, A. V. ( 2018 )., Izvestiya, Atmospheric and Oceanic Physics, 2 ( 54 ), 213-222, 10.1134/S0001433818020032.Amrhein, Daniel E. ; Wunsch, Carl ; Marchal, Olivier ; Forget, Gael ( 2018 )., Journal of Climate, 19 ( 31 ), 8059-8079, 10.1175/JCLI-D-17-0769.1.Le Fouest, Vincent ; Matsuoka, Atsushi ; Manizza, Manfredi ; Shernetsky, Mona ; Tremblay, Bruno ; Babin, Marcel ( 2018 )., Biogeosciences, 5 ( 15 ), 1335-1346, 10.5194/bg-15-1335-2018.Mu, Longjiang ; Losch, Martin ; Yang, Qinghua ; Ricker, Robert ; Loza, Svetlana N. ; Nerger, Lars ( 2018 )., Journal of Geophysical Research : Oceans, 10.1029/2018JC014316.Ponte, Rui M ; Quinn, Katherine J ; Piecuch, Christopher G ( 2018 )., Journal of Atmospheric and Oceanic Technology, 2 ( 35 ), 405-410, 10.1175/JTECH-D-17-0092.1.Bigdeli, A. ; Hara, T. ; Loose, B. ; Nguyen, A. T. ( 2018 )., Journal of Geophysical Research : Oceans, 3 ( 123 ), 2293-2304, 10.1002/2017JC013380.Stewart, Andrew L ; Klocker, Andreas ; Menemenlis, Dimitris ( 2018 )., Geophysical Research Letters, 2 ( 45 ), 834-845, 10.1002/2017GL075677.Zhan, Peng ( 2018 ) .Mohammadi-Aragh, M. ; Goessling, H. F. ; Losch, Martin ; Hutter, N. ; Jung, T. ( 2018 )., Scientific Reports, 1 ( 8 ), 6514, 10.1038/s41598-018-24660-0.Filmer, M. S. ; Hughes, C. W. ; Woodworth, P. L. ; Featherstone, W. E. ; Bingham, R. J. ( 2018 )., Journal of Geodesy, 12 ( 92 ), 1413-1437.Andersen, Ole Baltazar ; Nielsen, Karina ; Knudsen, Per ; Hughes, Chris W. ; Bingham, Rory ; Fenoglio-Marc, Luciana ; Gravelle, Médéric ; Kern, Michael ; Polo, Sara Padilla ( 2018 )., Marine Geodesy, 1-29, 10.1080/01490419.2018.1530320.Rocha, Cesar B. ( 2018 ) .Uotila, Petteri ; Goosse, Hugues ; Haines, Keith ; Chevallier, Matthieu ; Barthélemy, Antoine ; Bricaud, Clément ; Carton, Jim ; Fučkar, Neven ; Garric, Gilles ; Iovino, Doroteaciro ; Kauker, Frank ; Korhonen, Meri ; Lien, Vidar S. ; Marnela, Marika ; Massonnet, François ; Mignac, Davi ; Peterson, K. Andrew ; Sadikni, Remon ; Shi, Li ; Tietsche, Steffen ; Toyoda, Takahiro ; Xie, Jiping ; Zhang, Zhaoru ( 2018 )., Climate Dynamics, 10.1007/s00382-018-4242-z.Liu, Junjie ; Bowman, Kevin W. ; Parazoo, Nicholas C ; Bloom, A Anthony ; Wunch, Debra ; Jiang, Zhe ; Gurney, Kevin R ; Schimel, Dave ( 2018 )., Environmental Research Letters, 9 ( 13 ), 095003, 10.1088/1748-9326/aad5ef.Naughten, Kaitlin A. ; Meissner, Katrin J. ; Galton-Fenzi, Benjamin K. ; England, Matthew H. ; Timmermann, Ralph ; Hellmer, Hartmut H. ; Hattermann, Tore ; Debernard, Jens B. ( 2018 )., Geoscientific Model Development, 4 ( 11 ), 1257-1292, 10.5194/gmd-11-1257-2018.Ferster, Brady S. ; Subrahmanyam, Bulusu ; Fukumori, Ichiro ; Nyadjro, Ebenezer S. ( 2018 )., Journal of Physical Oceanography, 11 ( 48 ), 2667-2688, 10.1175/JPO-D-18-0055.1.Russell, Joellen L ; Kamenkovich, Igor ; Bitz, Cecilia ; Ferrari, Raffaele ; Gille, Sarah T ; Goodman, Paul J ; Hallberg, Robert ; Johnson, Kenneth ; Khazmutdinova, Karina ; Marinov, Irina ; Mazloff, Matthew ; Riser, Stephen ; Sarmiento, Jorge L ; Speer, Kevin ; Talley, Lynne D ; Wanninkhof, Rik ( 2018 )., Journal of Geophysical Research : Oceans, 10.1002/2017JC013461.Schlegel, Nicole-Jeanne ; Seroussi, Hélène ; Schodlok, Michael P. ; Larour, Eric Y. ; Boening, Carmen ; Limonadi, Daniel ; Watkins, Michael M. ; Morlighem, Mathieu ; van den Broeke, Michiel R. ( 2018 )., The Cryosphere, 11 ( 12 ), 3511-3534, 10.5194/tc-12-3511-2018.Villarino, Ernesto ; Watson, James R. ; Jönsson, Bror ; Gasol, Josep M. ; Salazar, Guillem ; Acinas, Silvia G. ; Estrada, Marta ; Massana, Ramón ; Logares, Ramiro ; Giner, Caterina R. ; Pernice, Massimo C. ; Olivar, M. Pilar ; Citores, Leire ; Corell, Jon ; Rodríguez-Ezpeleta, Naiara ; Acuña, José Luis ; Molina-Ramírez, Axayacatl ; González-Gordillo, J. Ignacio ; Cózar, Andrés ; Martí, Elisa ; Cuesta, José A. ; Agustí, Susana ; Fraile-Nuez, Eugenio ; Duarte, Carlos M. ; Irigoien, Xabier ; Chust, Guillem ( 2018 )., Nature Communications, 1 ( 9 ), 142, 10.1038/s41467-017-02535-8.Wang, Jinbo ; Qiu, Bo ; Menemenlis, Dimitris ; Thomas Farrar, J ; Chao, Yi ; Thompson, Andrew F ; Flexas, Mar M ; Fu, Lee Lueng ; Qiu, Bo ; Menemenlis, Dimitris ; Thomas Farrar, J ; Chao, Yi ; Thompson, Andrew F ; Flexas, Mar M ( 2018 )., J. Atmos. Ocean. Technol., 2 ( 35 ), 281-297, 10.1175/JTECH-D-17-0076.1.Delman, Andrew S. ; Lee, Tong ; Qiu, Bo ( 2018 )., Journal of Geophysical Research : Oceans, 10.1029/2018JC013945.Giglio, D ; Lyubchich, V ; Mazloff, M R ( 2018 )., Journal of Geophysical Research : Oceans, doi:10.1029/2017JC013404.Pillar, Helen R ; Johnson, Helen L ; Marshall, David P ; Heimbach, Patrick ; Takao, So ( 2018 )., Journal of Climate, 21 ( 31 ), 8719-8744, 10.1175/JCLI-D-18-0241.1.Khatiwala, Samar ; Graven, Heather ; Payne, Sarah ; Heimbach, Patrick ( 2018 )., Geophysical Research Letters, 11 ( 45 ), 5617-5626, 10.1029/2018GL078172.Prowe, A. E. Friederike ; Visser, André W. ; Andersen, Ken H. ; Chiba, Sanae ; Kiørboe, Thomas ( 2018 )., Limnology and Oceanography, lno.11067, 10.1002/lno.11067.Sonnewald, Maike ; Wunsch, Carl ; Heimbach, Patrick ( 2018 )., Journal of Climate, 7 ( 31 ), 2599-2611, 10.1175/JCLI-D-17-0142.1.Liang, Yu-Chiao ; Mazloff, Matthew R ; Rosso, Isabella ; Fang, Shih-Wei ; Yu, Jin-Yi ( 2018 )., Journal of Atmospheric and Oceanic Technology, doi.org/10.1175/JTECH-D-18-0018.1.Smith, Timothy ; Heimbach, Patrick ( 2018 )., Journal of Climate, JCLI-D-18-0311.1, 10.1175/JCLI-D-18-0311.1.Thompson, Andrew F. ; Stewart, Andrew L. ; Spence, Paul ; Heywood, Karen J. ( 2018 )., Reviews of Geophysics, 4 ( 56 ), 741-770, 10.1029/2018RG000624.Hameed, Sultan ; Wolfe, Christopher L P ; Chi, Lequan ( 2018 )., Journal of Climate, 21 ( 31 ), 8875-8894, 10.1175/JCLI-D-18-0098.1.Ponte, R M ; Piecuch, C G ( 2018 )., Geophysical Research Letters, 7 ( 45 ), 3221-3227, 10.1002/2017GL076821.Andrei, Constantin-Octavian ; Lahtinen, Sonja ; Nordman, Maaria ; Näränen, Jyri ; Koivula, Hannu ; Poutanen, Markku ; Hyyppä, Juha ( 2018 )., Remote Sensing, 12 ( 10 ), 1937, 10.3390/rs10121937.Zhang, Hong ; Menemenlis, Dimitris ; Fenty, Ian ( 2018 ) .Fukumori, Ichiro ; Heimbach, Patrick ; Ponte, Rui M ; Wunsch, Carl ( 2018 )., Bulletin of the american Meteorological Society, 10 ( 99 ), 2107-2128, 10.1175/BAMS-D-17-0213.1.Ferreira, David ; Cessi, Paola ; Coxall, Helen K ; de Boer, Agatha ; Dijkstra, Henk A ; Drijfhout, Sybren S ; Eldevik, Tor ; Harnik, Nili ; McManus, Jerry F ; Marshall, David P ; Nilsson, Johan ; Roquet, Fabien ; Schneider, Tapio ; Wills, Robert C ( 2018 )., Annual Review of Earth and Planetary Sciences, 1 ( 46 ), 327-352, 10.1146/annurev-earth-082517-010045.Foss, Greg ; Nguyen, An ; Ocaña, Victor ; Heimbach, Patrick ( 2018 )., Proceedings of the Practice and Experience on Advanced Research Computing – PEARC ’18, 1-2, 10.1145/3219104.3229429.Van five hundred Stocken, Tom ; Carroll, Dustin ; Menemenlis, Dimitris ; Simard, Marc ; Koedam, Nico ( 2018 )., Proceedings of the National Academy of Sciences, 201812470, 10.1073/pnas.1812470116.Jordan, James R ; Holland, Paul R ; Goldberg, Dan ; Snow, Kate ; Arthern, Robert ; Campin, Jean-Michel ; Heimbach, Patrick ; Jenkins, Adrian ( 2018 )., Journal of Geophysical Research : Oceans, 9 ( 125 ), 2219-2293, 10.1002/2017JC013251.Kumar, Anurag ; Dwivedi, Suneet ; Pandey, Avinash C. ( 2018 )., diametric Science ( 18 ), 83-93, 10.1016/j.polar.2018.04.003.Chen, Guo ; Zhao, Qile ; Wei, Na ; Li, Min ( 2018 )., Sensors, 7 ( 18 ), 2127, 10.3390/s18072127.Klos, Anna ; Gruszczynska, Marta ; Bos, Machiel Simon ; Boy, Jean-Paul ; Bogusz, Janusz ( 2018 )., Pure and Applied Geophysics, 5 ( 175 ), 1823-1840, 10.1007/s00024-017-1494-1.Roberts, Jason ; Galton-Fenzi, Benjamin K. ; Paolo, Fernando S. ; Donnelly, Claire ; Gwyther, David E. ; Padman, Laurie ; Young, Duncan ; Warner, Roland ; Greenbaum, Jamin ; Fricker, Helen A. ; Payne, Antony J. ; Cornford, Stephen ; Le Brocq, Anne ; van Ommen, Tas ; Blankenship, Don ; Siegert, Martin J. ( 2018 )., geological Society, London, Special Publications, 1 ( 461 ), 175-186, 10.1144/SP461.6.Vaňková, Irena ( 2018 ) .Strobach, Ehud ; Molod, Andrea ; Forget, Gael ; Campin, Jean-Michel ; Hill, Chris ; Menemenlis, Dimitris ; Heimbach, Patrick ( 2018 )., Ocean Modelling ( 132 ), 91-111, 10.1016/j.ocemod.2018.10.006.Viglione, Giuliana A. ; Thompson, Andrew F. ; Flexas, M. Mar ; Sprintall, Janet ; Swart, Sebastiaan ( 2018 )., Journal of Physical Oceanography, 9 ( 48 ), 2011-2027, 10.1175/JPO-D-17-0192.1.Liu, Chengyan ; Wang, Zhaomin ; Cheng, Chen ; Wu, Yang ; Xia, Ruibin ; Li, Bingrui ; Li, Xiang ( 2018 )., Journal of Geophysical Research : Oceans, 10.1029/2018JC014026.Bashmachnikov, Igor ; Belonenko, Tatyana ; Kuibin, Pavel ; Volkov, Denis L. ; Foux, Victor ( 2018 )., Ocean Dynamics, 12 ( 68 ), 1711-1725, 10.1007/s10236-018-1213-1.Ubelmann, Clément ; Dibarboure, Gérald ; Dubois, Pierre ( 2018 )., Journal of Atmospheric and Oceanic Technology, 4 ( 35 ), 845-857, 10.1175/JTECH-D-17-0061.1.Wei, Jianfen ; Zhang, Xiangdong ; Wang, Zhaomin ( 2018 )., Climate Dynamics, 10.1007/s00382-018-4254-8.Wood, M ; Rignot, E ; Fenty, Ian ; Menemenlis, Dimitris ; Millan, R ; Morlighem, M ; Mouginot, J ; Seroussi, Hélène ( 2018 )., Geophysical Research Letters, 10.1029/2018GL078024.Carton, James A. ; Chepurin, Gennady A. ; Chen, Ligan ; Grodsky, Semyon A. ( 2018 )., Journal of Geophysical Research : Oceans, 5 ( 123 ), 3144-3163, 10.1002/2017JC013137.Tamsitt, V ; Abernathey, R P ; Mazloff, M R ; Wang, J ; Talley, L D ( 2018 )., Journal of Geophysical Research : Oceans, 10.1002/2017JC013409.Qiu, Bo ; Chen, Shuiming ; Klein, Patrice ; Wang, Jinbo ; Torres, Hector S ; Fu, Lee-Lueng ; Menemenlis, Dimitris ( 2018 )., J. Phys. Oceanogr., 3 ( 48 ), 591-605, 10.1175/JPO-D-17-0169.1.Zaba, Katherine D ; Rudnick, Daniel L ; Cornuelle, Bruce D ; Gopalakrishnan, Ganesh ; Mazloff, Matthew R ( 2018 )., Journal of Physical Oceanography, 12 ( 48 ), 2965-2988, 10.1175/JPO-D-18-0037.1.Adcroft, Alistair J. ; Campin, Jean-Michel ; Dutkiewicz, Stephanie ; Evangelinos, Constantinos ; Ferreira, David ; Forget, Gael ; Fox-Kemper, Baylor ; Heimbach, Patrick ; Hill, Chris ; Hill, Ed ; Hill, Helen ; Jahn, Oliver ; Losch, Martin ; Marshall, John ; Maze, Guillaume ; Menemenlis, Dimitris ; Molod, Andrea ( 2018 ) .Mukherjee, A. ; Shankar, D. ; Chatterjee, Abhisek ; Vinayachandran, P. N. ( 2018 )., Climate Dynamics, 11-12 ( 50 ), 3949-3980, 10.1007/s00382-017-3856-x.Yu, Y. ; Chao, B.F. ; García-García, D. ; Luo, Z. ( 2018 )., Journal of Geophysical Research : Oceans, 8 ( 123 ), 5375-5387, 10.1029/2018JC01418.Sonke, Jeroen E. ; Teisserenc, Roman ; Heimbürger-Boavida, Lars-Eric ; Petrova, Mariia V. ; Marusczak, Nicolas ; Le Dantec, Theo ; Chupakov, Artem V. ; Li, Chuxian ; Thackray, Colin P. ; Sunderland, Elsie M. ; Tananaev, Nikita ; Pokrovsky, Oleg S. ( 2018 )., Proceedings of the National Academy of Sciences, 50 ( 115 ), E11586-E11594, 10.1073/pnas.1811957115.Zaron, Edward D. ; Rocha, Cesar B. ( 2018 )., Bulletin of the american english Meteorological Society, 9 ( 99 ), ES155-ES157, 10.1175/BAMS-D-18-0133.1.Sarah T. Gille, Michael P. Meredith ( 2017 )., Satellite Altimetry over Oceans and Land Surfaces, 18.Rosemary Morrow, Lee-Lueng Fu, J. Thomas Farrar, Hyodae Seo, Pierre-Yves Le Traon ( 2017 )., Satellite Altimetry over Oceans and Land Surfaces, 28, hypertext transfer protocol : //doi.org/10.1201/9781315151779.Lemieux, Jean-François ; Bouillon, Sylvain ; Dupont, Frédéric ; Flato, Gregory ; Losch, Martin ; Rampal, Pierre ; Tremblay, Louis-Bruno ; Vancoppenolle, Martin ; Williams, Timothy ( 2017 )., Sea Ice Analysis and Forecasting, 10.1017/9781108277600.003.Stewart, K.D. ; Hogg, A.McC. ; Griffies, S.M. ; Heerdegen, A.P. ; Ward, M.L. ; Spence, P. ; England, M.H. ( 2017 )., Ocean Modelling ( 113 ), 50-65, 10.1016/j.ocemod.2017.03.012.Watkins, Andrew ( 2017 )., Bowling fleeceable State University, 58.Gulliver, Larry T. ( 2017 ) .Pfeffer, J. ; Spada, G. ; Mémin, A. ; Boy, J.-P. ; Allemand, P. ( 2017 )., Geophysical Journal International, 1 ( 210 ), 148-165, 10.1093/gji/ggx142.Le Bras, Isabela Astiz ( 2017 )., MIT Libraries.Buchan, Jian ( 2017 )., University of Southhampton, 163.Zakem, Emily Juliette ( 2017 )., Massachusetts Institute of Technology.Compton, Kathleen ; Bennett, Richard A. ; Hreinsdóttir, Sigrún ; avant-garde Dam, Tonie ; Bordoni, Andrea ; Barletta, Valentina ; Spada, Giorgio ( 2017 )., Geochemistry, Geophysics, Geosystems, 6 ( 18 ), 2099-2119, 10.1002/2017GC006831.Liu, Lin ; Khan, Shfaqat Abbas ; van Dam, Tonie ; Ma, Joseph Ho Yin ; Bevis, Michael ( 2017 )., Journal of Geophysical Research : solid Earth, 1 ( 122 ), 677-691, 10.1002/2016JB013494.Pennisi, Elizabeth ( 2017 )., Science, 6329 ( 355 ), 1006-1009, 10.1126/science.355.6329.1006.Walker, C.C. ; Gardner, A.S. ( 2017 )., Earth and Planetary Science Letters ( 476 ), 100-110, 10.1016/j.epsl.2017.08.005.Mazloff, M R ; Sallée, J.-B. ; Menezes, V V ; Macdonald, A M ; Meredith, M P ; Newman, L ; Pellichero, V ; Roquet, F ; Swart, S ; W\r ahlin, A ( 2017 )., Bull. Amer. Meteor. Soc. ( 98 ) .Ma, Qiang ; Wang, Jianing ; Wang, Fan ( 2017 )., Oceanologia et Limnologia Sinica, 6 ( 48 ), 1302-1317, 10.11693/hyhz20170600159.Chin, Toshio Michael ; Vazquez-Cuervo, Jorge ; Armstrong, Edward M. ( 2017 )., Remote Sensing of Environment ( 200 ), 154-169, 10.1016/j.rse.2017.07.029.Song, Xiangzhou ; Yu, Lisan ( 2017 )., Journal of Geophysical Research : Oceans, 5 ( 122 ), 4068-4087, 10.1002/2016JC012254.Tamsitt, Veronica ; Drake, Henri F ; Morrison, Adele K ; Talley, Lynne D ; Dufour, Carolina O ; Gray, Alison R ; Griffies, Stephen M ; Mazloff, Matthew R ; Sarmiento, Jorge L ; Wang, Jinbo ; Weijer, Wilbert ( 2017 )., Nature Communications ( 8 ), 172, 0.1038/s41467-017-00197-0.Fenty, Ian ; Menemenlis, Dimitris ; Zhang, Hong ( 2017 )., Climate Dynamics, 3 ( 49 ), 931-956, 10.1007/s00382-015-2796-6.Mu, Longjiang ; Zhao, Jinping ; Zhong, Wenli ( 2017 )., Acta Oceanologica Sinica, 1 ( 36 ), 35-43, 10.1007/s13131-016-0883-0.Hsu, Chia-Wei ; Velicogna, Isabella ( 2017 )., Geophysical Research Letters, 17 ( 44 ), 8953-8961, 10.1002/2017GL074070.Liang, Xinfeng ; Spall, Michael ; Wunsch, Carl ( 2017 )., Journal of Geophysical Research : Oceans, 10 ( 122 ), 8208-8224, 10.1002/2017JC012985.Vondrák, Jan ; Ron, C. ; Chapanov, Ya. ( 2017 )., Advances in Space Research, 5 ( 59 ), 1395-1407, 10.1016/j.asr.2016.12.001.Seroussi, Hélène ; Nakayama, Y. ; Larour, E. ; Menemenlis, Dimitris ; Morlighem, M. ; Rignot, E. ; Khazendar, A. ( 2017 )., Geophysical Research Letters, 12 ( 44 ), 6191-6199, 10.1002/2017GL072910.Volkov, Denis L. ; Lee, Sang-Ki ; Landerer, Felix W. ; Lumpkin, Rick ( 2017 )., Geophysical Research Letters, 2 ( 44 ), 927-936, 10.1002/2016GL071661.Fukumori, Ichiro ; Wang, Ou ; Fenty, Ian ; Forget, Gael ; Heimbach, Patrick ; Ponte, Rui M. ( 2017 ) .Piecuch, Christopher G ; Ponte, Rui M ; Little, Christopher M ; Buckley, Martha W ; Fukumori, Ichiro ( 2017 )., Journal of Geophysical Research : Oceans, 9 ( 122 ), 7181-7197, 10.1002/2017JC012845.Schwedes, Tobias ; Ham, David A. ; Funke, Simon W. ; Piggott, Matthew D. ( 2017 )., Mesh Dependence in PDE-Constrained Optimisation, 1-52, 10.1007/978-3-319-59483-5_1.Harrison, Daniel P. ( 2017 )., Environmental Research Letters, 3 ( 12 ), 035001, 10.1088/1748-9326/aa5ef5.Ngeve, Magdalene N ; Van five hundred Stocken, Tom ; Menemenlis, Dimitris ; Koedam, Nico ; Triest, Ludwig ( 2017 )., Hydrobiologia, 1 ( 803 ), 189-207, 10.1007/s10750-017-3369-y.Marshall, John ; Scott, Jeffery ; Proshutinsky, Andrey ( 2017 )., Geoscientific Model Development, 7 ( 10 ), 2833-2848, 10.5194/gmd-10-2833-2017.Clayton, Sophie ; Dutkiewicz, Stephanie ; Jahn, Oliver ; Hill, Christopher ; Heimbach, Patrick ; Follows, Michael J. ( 2017 )., Biogeosciences, 11 ( 14 ), 2877-2889, 10.5194/bg-14-2877-2017.Bashmachnikov, I. L. ; Belonenko, T. V. ; Kuibin, P. A. ( 2017 )., Bulletin of Saint-Petersburg University Earth Sciences, 62 ( 3 ), 221-236.Wagner, Till J. W. ; Dell, Rebecca W. ; Eisenman, Ian ( 2017 )., Journal of Physical Oceanography, 7 ( 47 ), 1605-1616, 10.1175/JPO-D-16-0262.1.Han, Bing ( 2017 ) .Liu, Chengyan ; Wang, Zhaomin ; Cheng, Chen ; Xia, Ruibin ; Li, Bingrui ; Xie, Zelin ( 2017 )., Journal of Geophysical Research : Oceans, 7 ( 122 ), 5198-5217, 10.1002/2016JC012336.Kleinherenbrink, Marcel ; Riva, Riccardo ; Frederikse, Thomas ; Merrifield, Mark ; Wada, Yoshihide ( 2017 )., Journal of Geophysical Research : Oceans, 8 ( 122 ), 6254-6276, 10.1002/2017JC012792.Cai, Cilan ; Rignot, Eric ; Menemenlis, Dimitris ; Nakayama, Yoshihiro ( 2017 )., Geophysical Research Letters, 16 ( 44 ), 8396-8403, 10.1002/2017GL073711.Blunden, Jessica ; Arndt, Derek S. ( 2017 )., Bulletin of the american english Meteorological Society, 8 ( 98 ), Si-S280, 10.1175/2017BAMSStateoftheClimate.1.Chalamalla, Vamsi K ; Santilli, Edward ; Scotti, Alberto ; Jalali, Masoud ; Sarkar, Sutanu ( 2017 )., Ocean Modelling ( 120 ), 101-119, 10.1016/j.ocemod.2017.11.003.Wagner, Till J.W. ; Stern, Alon A. ; Dell, Rebecca W. ; Eisenman, Ian ( 2017 )., Ocean Modelling ( 117 ), 88-96, 10.1016/j.ocemod.2017.07.003.Zhang, Xianming ; Zhang, Yanxu ; Dassuncao, Clifton ; Lohmann, Rainer ; Sunderland, Elsie M. ( 2017 )., Global Biogeochemical Cycles, 8 ( 31 ), 1332-1343, 10.1002/2017GB005624.Bigdeli, Arash ; Loose, Brice ; Nguyen, An T. ; Cole, Sylvia T. ( 2017 )., Ocean Science, 1 ( 13 ), 61-75, 10.5194/os-13-61-2017.Qiu, Bo ; Chen, Shuiming ; Schneider, Niklas ( 2017 )., Journal of Climate, 23 ( 30 ), 9591-9605, 10.1175/jcli-d-17-0397.1.Mukherjee, Arnab ( 2017 ) .Aguiar, Wilton ; Mata, Mauricio M. ; Kerr, Rodrigo ( 2017 )., Ocean Science, 6 ( 13 ), 851-872, 10.5194/os-13-851-2017.Ardhuin, Fabrice ; Gille, Sarah T. ; Menemenlis, Dimitris ; Rocha, Cesar B. ; Rascle, Nicolas ; Chapron, Bertrand ; Gula, Jonathan ; Molemaker, Jeroen ( 2017 )., Journal of Geophysical Research : Oceans, 6 ( 122 ), 4500-4517, 10.1002/2016JC012413.Liu, Wei ; Xie, Shang-Ping ; Liu, Zhengyu ; Zhu, Jiang ( 2017 )., Science Advances, 1 ( 3 ) .Liang, Xinfeng ; Piecuch, Christopher G ; Ponte, Rui M ; Forget, Gael ; Wunsch, Carl ; Heimbach, Patrick ( 2017 )., Journal of Climate, 14 ( 30 ), 5319-5327, 10.1175/jcli-d-16-0569.1.King, Jennifer ; Spreen, Gunnar ; Gerland, Sebastian ; Haas, Christian ; Hendricks, Stefan ; Kaleschke, Lars ; Wang, Caixin ( 2017 )., Journal of Geophysical Research : Oceans, 2 ( 122 ), 1497-1512, 10.1002/2016JC012199.Belonenko, T. V. ; Bashmachnikov, I. L. ; Koldunov, A. V. ; Kuibin, P. A. ( 2017 )., Izvestiya, Atmospheric and Oceanic Physics, 6 ( 53 ), 641-649, 10.1134/S0001433817060032.Cougnon, E. A. ; Galton-Fenzi, B. K. ; Rintoul, S. R. ; Legrésy, B. ; Williams, G. D. ; Fraser, A. D. ; Hunter, J. R. ( 2017 )., Geophysical Research Letters, 22 ( 44 ), 11,519-11,527, 10.1002/2017GL074943.Verdy, A ; Mazloff, M R ( 2017 )., Journal of Geophysical Research : Oceans, 9 ( 122 ), 6968-6988, 10.1002/2016JC012650.Santoso, Agus ; Mcphaden, Michael J. ; Cai, Wenju ( 2017 )., Reviews of Geophysics, 4 ( 55 ), 1079-1129, 10.1002/2017RG000560.Ungermann, Mischa ; Tremblay, L. Bruno ; Martin, Torge ; Losch, Martin ( 2017 )., Journal of Geophysical Research : Oceans, 3 ( 122 ), 2090-2107, 10.1002/2016JC012128.Savage, Anna C ; Arbic, Brian K ; Alford, Matthew H ; Ansong, Joseph K ; Farrar, J Thomas ; Menemenlis, Dimitris ; O’Rourke, Amanda K ; Richman, James G ; Shriver, Jay F ; Voet, Gunnar ; Wallcraft, Alan J ; Zamudio, Luis ( 2017 )., J. Geophys. Res. Ocean. ( 122 ), 10.1002/2017JC013009.Timmermans, Mary-Louise ; Marshall, John ; Proshutinsky, Andrey ; Scott, Jeffery ( 2017 )., Geophysical Research Letters, 10 ( 44 ), 5008-5015, 10.1002/2017GL073042.Masuda, Shuhei ( 2017 )., Oceanography in Japan, 5 ( 26 ), 209xxxXXX # 8722 ; 215.Dushaw, Brian D. ( 2017 )., 8th EuroGOOS Conference, October, 5.Naughten, Kaitlin A. ; Galton-Fenzi, Benjamin K. ; Meissner, Katrin J. ; England, Matthew H. ; Brassington, Gary B. ; Colberg, Frank ; Hattermann, Tore ; Debernard, Jens B. ( 2017 )., Ocean Modelling ( 116 ), 108-117, 10.1016/j.ocemod.2017.06.010.Liu, Chengyan ; Wang, Zhaomin ; Li, Bingrui ; Cheng, Chen ; Xia, Ruibin ( 2017 )., Advances in Atmospheric Sciences, 4 ( 34 ), 521-531, 10.1007/s00376-016-6021-2.Liu, Junjie ; Bowman, Kevin W. ; Schimel, David S. ; Parazoo, Nicolas C. ; Jiang, Zhe ; Lee, Meemong ; Bloom, A. Anthony ; Wunch, Debra ; Frankenberg, Christian ; Sun, Ying ; O’Dell, Christopher W. ; Gurney, Kevin R. ; Menemenlis, Dimitris ; Gierach, Michelle ; Crisp, David ; Eldering, Annmarie ( 2017 )., Science, 6360 ( 358 ), eaam5690, 10.1126/science.aam5690.Craig, Philip M. ; Ferreira, David ; Methven, John ( 2017 )., Tellus A : Dynamic Meteorology and Oceanography, 1 ( 69 ), 1330454, 10.1080/16000870.2017.1330454.Storto, Andrea ; Masina, Simona ; Balmaseda, Magdalena ; Guinehut, Stéphanie ; Xue, Yan ; Szekely, Tanguy ; Fukumori, Ichiro ; Forget, Gael ; Chang, You-Soon ; Good, Simon A ; Köhl, Armin ; Vernieres, Guillaume ; Ferry, Nicolas ; Peterson, K Andrew ; Behringer, David ; Ishii, Masayoshi ; Masuda, Shuhei ; Fujii, Yosuke ; Toyoda, Takahiro ; Yin, Yonghong ; Valdivieso, Maria ; Barnier, Bernard ; Boyer, Tim ; Lee, Tony ; Gourrion, Jérome ; Wang, Ou ; Heimbach, Patrick ; Rosati, Anthony ; Kovach, Robin ; Hernandez, Fabrice ; Martin, Matthew J ; Kamachi, Masafumi ; Kuragano, Tsurane ; Mogensen, Kristian ; Alves, Oscar ; Haines, Keith ; Wang, Xiaochun ( 2017 )., Climate Dynamics, 3 ( 49 ), 709-729, 10.1007/s00382-015-2554-9.Wu, Quran ; Zhang, Xuebin ; Church, John A. ; Hu, Jianyu ( 2017 )., Journal of Geophysical Research : Oceans, 3 ( 122 ), 1862-1881, 10.1002/2016JC012345.Vinogradova, Nadya T. ; Ponte, Rui M. ( 2017 )., Journal of Climate, 14 ( 30 ), 5513-5528, 10.1175/JCLI-D-16-0626.1.Wilson, Nat ; Straneo, Fiammetta ; Heimbach, Patrick ( 2017 )., The Cryosphere, 6 ( 11 ), 2773-2782, 10.5194/tc-11-2773-2017.Dushaw, Brian D. ; Colosi, John ; Duda, Timothy ; Dzieciuch, Matthew ; Howe, Bruce ; Kaneko, Arata ; Sagen, Hanne ; Skarsoulis, Emmanuel ; Zhu, Xiaohua ( 2017 )., Proceedings Underwater Acoustics Conference and Exhibition, 12.Rosso, Isabella ; Mazloff, Matthew R ; Verdy, Ariane ; Talley, Lynne D ( 2017 )., Journal of Geophysical Research : Oceans, 9 ( 122 ), 7407-7432, 10.1002/2016JC012646.Verdy, Ariane ; Cornuelle, Bruce ; Mazloff, Matthew R. ; Rudnick, Daniel L. ( 2017 )., Journal of Atmospheric and Oceanic Technology, 7 ( 34 ), 1501-1517, 10.1175/JTECH-D-16-0223.1.Villas Bôas, Ana B ; Gille, Sarah T ; Mazloff, Matthew R ; Cornuelle, Bruce D ( 2017 )., Journal of Geophysical Research : Oceans, 10.1002/2017JC013280.Nakayama, Yoshihiro ; Menemenlis, Dimitris ; Schodlok, Michael P ; Rignot, Eric J ( 2017 )., J. Geophys. Res. Ocean., 1-16, 10.1002/2016JC012538.Harrison, Daniel P. ; Hinton, Michael G. ; Kohin, Suzanne ; Armstrong, Edward M. ; Snyder, Stephanie ; O’Brien, Frank ; Kiefer, Dale K. ( 2017 )., Fisheries Oceanography, 3 ( 26 ), 316-335, 10.1111/fog.12194.Davis, James ; Vinogradova, Nadya ( 2017 )., Geophysical Research Letters ( 44 ), 10.1002/2017GL072845.Gregor, Luke ; Kok, Schalk ; Monteiro, Pedro M. S. ( 2017 )., Biogeosciences, 23 ( 14 ), 5551-5569, 10.5194/bg-14-5551-2017.Chevallier, Matthieu ; Smith, Gregory C ; Dupont, Frédéric ; Lemieux, Jean-François ; Forget, Gael ; Fujii, Yosuke ; Hernandez, Fabrice ; Msadek, Rym ; Peterson, K Andrew ; Storto, Andrea ; Toyoda, Takahiro ; Valdivieso, Maria ; Vernieres, Guillaume ; Zuo, Hao ; Balmaseda, Magdalena ; Chang, You-Soon ; Ferry, Nicolas ; Garric, Gilles ; Haines, Keith ; Keeley, Sarah ; Kovach, Robin M ; Kuragano, Tsurane ; Masina, Simona ; Tang, Yongming ; Tsujino, Hiroyuki ; Wang, Xiaochun ( 2017 )., Climate Dynamics, 3 ( 49 ), 1107-1136, 10.1007/s00382-016-2985-y.Bashmachnikov, I.L. ; Sokolovskiy, M.A. ; Belonenko, T.V. ; Volkov, Denis L. ; Isachsen, P.E. ; Carton, X. ( 2017 )., Deep Sea Research Part I : Oceanographic Research Papers ( 128 ), 1-27, 10.1016/j.dsr.2017.08.001.Wagner, Till J. W. ; Eisenman, Ian ( 2017 )., Geophysical Research Letters, 8 ( 44 ), 3691-3699, 10.1002/2016GL071645.Karspeck, A R ; Stammer, D ; Köhl, A ; Danabasoglu, G ; Balmaseda, M ; Smith, D M ; Fujii, Y ; Zhang, S ; Giese, B ; Tsujino, H ; Rosati, A ( 2017 )., Climate Dynamics, 3 ( 49 ), 957-982, 10.1007/s00382-015-2787-7.Toyoda, Takahiro ; Fujii, Yosuke ; Kuragano, Tsurane ; Kamachi, Masafumi ; Ishikawa, Yoichi ; Masuda, Shuhei ; Sato, Kanako ; Awaji, Toshiyuki ; Hernandez, Fabrice ; Ferry, Nicolas ; Guinehut, Stéphanie ; Martin, Matthew J ; Peterson, K Andrew ; Good, Simon A ; Valdivieso, Maria ; Haines, Keith ; Storto, Andrea ; Masina, Simona ; Köhl, Armin ; Zuo, Hao ; Balmaseda, Magdalena ; Yin, Yonghong ; Shi, Li ; Alves, Oscar ; Smith, Gregory ; Chang, You-Soon ; Vernieres, Guillaume ; Wang, Xiaochun ; Forget, Gael ; Heimbach, Patrick ; Wang, Ou ; Fukumori, Ichiro ; Lee, Tong ( 2017 )., Climate Dynamics, 3 ( 49 ), 753-773, 10.1007/s00382-015-2637-7.Wu, Yang ; Wang, Zhaomin ; Liu, Chengyan ( 2017 )., Journal of Geophysical Research : Oceans, 3 ( 122 ), 2465-2493, 10.1002/2016JC012539.Bigdeli, Arash ( 2017 ) .Gelderloos, Renske ; Haine, Thomas W. N. ; Koszalka, Inga M. ; Magaldi, Marcello G. ( 2017 )., Journal of Physical Oceanography, 7 ( 47 ), 1685-1699, 10.1175/JPO-D-16-0202.1.Yang, Yang ; San Liang, X ; Qiu, Bo ; Chen, Shuiming ( 2017 )., Journal of Physical Oceanography, 5 ( 47 ), 1169-1187, 10.1175/JPO-D-16-0201.1.Chen, Wei ; Li, Jiancheng ; Ray, Jim ; Cheng, Minkang ( 2017 )., Geodesy and Geodynamics, 6 ( 8 ), 377-388, 10.1016/j.geog.2017.04.006.Spreen, Gunnar ; Kwok, Ronald ; Menemenlis, Dimitris ; Nguyen, An T ( 2017 )., Cryosph., 1, 1-37, 10.5194/tc-2016-13.Jia, Fan ; Hu, Dunxin ; Hu, Shijian ; Feng, Junqiao ( 2017 )., Journal of Geophysical Research : Oceans, 11 ( 122 ), 9299-9314, 10.1002/2017JC013208.Su, Zhan ( 2017 )., Geophysical Research Letters, 12 ( 44 ), 6307-6315, 10.1002/2017GL073236.Bowman, Kevin W. ; Liu, J ; Bloom, A A ; Parazoo, N C ; Lee, M ; Jiang, Z ; Menemenlis, Dimitris ; Gierach, M M ; Collatz, G J ; Gurney, K R ; Wunch, D ( 2017 )., Earth and Space Science, 10 ( 4 ), 637-660, 10.1002/2016EA000204.Ellsworth, David A. ; Henze, Christopher E. ; Nelson, Bron C. ( 2017 )., 2017 IEEE 7th Symposium on Large Data Analysis and Visualization ( LDAV ), 36-44, 10.1109/LDAV.2017.8231849.Gregor, Luke ( 2017 ) .Abbondanza, Claudio ; Chin, Toshio M ; Gross, Richard S ; Heflin, Michael B ; Parker, Jay W ; Soja, Benedikt S ; van Dam, Tonie ; Wu, Xiaoping ( 2017 )., Journal of Geophysical Research : solid Earth, 10 ( 122 ), 8474-8510, 10.1002/2017JB014360.Dushaw, Brian D. ; Gaillard, Fabienne ; Terre, Thierry ( 2017 )., Journal of Geophysical Research : Oceans, 11 ( 122 ), 8983-9003, 10.1002/2017JC013356.Parkinson, Samuel D. ; Funke, Simon W. ; Hill, Jon ; Piggott, Matthew D. ; Allison, Peter A. ( 2017 )., Geoscientific Model Development, 3 ( 10 ), 1051-1068, 10.5194/gmd-10-1051-2017.Vazquez-Cuervo, Jorge ; Torres, Hector S ; Menemenlis, Dimitris ; Chin, Toshio M ; Armstrong, Edward M ( 2017 )., Int. J. Remote Sens., 23 ( 38 ), 6599-6622, 10.1080/01431161.2017.1362130.Blanken, Hauke ; Tremblay, Louis Bruno ; Gaskin, Susan ; Slavin, Alexander ( 2017 )., Marine Pollution Bulletin, 1-2 ( 116 ), 315-331, 10.1016/j.marpolbul.2016.12.070.Van five hundred Stocken, Tom ; Menemenlis, Dimitris ( 2017 )., Biotropica, 4 ( 49 ), 472-481, 10.1111/btp.12440.Evans, Dafydd Gwyn ; Toole, John ; Forget, Gael ; Zika, Jan D ; Garabato, Alberto C Naveira ; Nurser, A J George ; Yu, Lisan ( 2017 )., Journal of Physical Oceanography, 3 ( 47 ), 633-647, 10.1175/jpo-d-16-0089.1.Dushaw, Brian D. ; Sagen, Hanne ( 2017 )., The Journal of the Acoustical Society of America, 6 ( 142 ), 3541-3552, 10.1121/1.5016816.Schwab, Julia Maria ( 2017 ) .Toyoda, Takahiro ; Fujii, Yosuke ; Kuragano, Tsurane ; Kosugi, Naohiro ; Sasano, Daisuke ; Kamachi, Masafumi ; Ishikawa, Yoichi ; Masuda, Shuhei ; Sato, Kanako ; Awaji, Toshiyuki ; Hernandez, Fabrice ; Ferry, Nicolas ; Guinehut, Stéphanie ; Martin, Matthew ; Andrew Peterson, K ; Good, Simon A ; Valdivieso, Maria ; Haines, Keith ; Storto, Andrea ; Masina, Simona ; Köhl, Armin ; Yin, Yonghong ; Shi, Li ; Alves, Oscar ; Smith, Gregory ; Chang, You-Soon ; Vernieres, Guillaume ; Wang, Xiaochun ; Forget, Gael ; Heimbach, Patrick ; Wang, Ou ; Fukumori, Ichiro ; Lee, Tong ; Zuo, Hao ; Balmaseda, Magdalena ( 2017 )., Climate Dynamics, 3 ( 49 ), 891-907, 10.1007/s00382-015-2762-3.Xu, Houze ( 2017 )., Acta Geodaetica et Cartographica Sinica, 8 ( 46 ), 939-944, 10.11947/j.AGCS.2017.20170406.Wang, Zhaomin ; Wu, Yang ; Lin, Xia ; Liu, Chengyan ; Xie, Zelin ( 2017 )., Climate Dynamics, 9-10 ( 48 ), 2967-2981, 10.1007/s00382-016-3244-y.Winska, Malgorzata ; Nastula, Jolanta ; Salstein, David ( 2017 )., Journal of Geodesy, 12 ( 91 ), 1461-1473, 10.1007/s00190-017-1036-8.Meyssignac, B. ; Piecuch, C. G. ; Merchant, C. J. ; Racault, M.-F. ; Palanisamy, H. ; MacIntosh, C. ; Sathyendranath, S. ; Brewin, R. ( 2017 )., Surveys in Geophysics, 1 ( 38 ), 187-215, 10.1007/s10712-016-9383-1.Ito, Takamitsu ; Wang, Ou ( 2017 )., Journal of Marine Systems ( 167 ), 1-10, 10.1016/j.jmarsys.2016.10.015.Savage, Anna ( 2017 ) .Palmer, M. D. ; Roberts, C. D. ; Balmaseda, M. ; Chang, Y.-S. ; Chepurin, G. ; Ferry, N. ; Fujii, Y. ; Good, S. A. ; Guinehut, S. ; Haines, K. ; Hernandez, F. ; Köhl, A. ; Lee, T. ; Martin, M. J. ; Masina, S. ; Masuda, S. ; Peterson, K. A. ; Storto, A. ; Toyoda, T. ; Valdivieso, M. ; Vernieres, G. ; Wang, O. ; Xue, Y. ( 2017 )., Climate Dynamics, 3 ( 49 ), 909-930, 10.1007/s00382-015-2801-0.Wolfe, Christopher L. ; Cessi, Paola ; Cornuelle, Bruce D. ( 2017 )., Journal of Physical Oceanography, 3 ( 47 ), 701-719, 10.1175/JPO-D-16-0177.1.Wu, Yang ; Zhai, Xiaoming ; Wang, Zhaomin ( 2017 )., Journal of Climate, 23 ( 30 ), 9511-9525, 10.1175/JCLI-D-17-0001.1.Manucharyan, Georgy E. ; Thompson, Andrew F. ( 2017 )., Journal of Geophysical Research : Oceans, 12 ( 122 ), 9455-9475, 10.1002/2017JC012895.Juricke, Stephan ; Palmer, Tim N. ; Zanna, Laure ( 2017 )., Journal of Climate, 13 ( 30 ), 4997-5019, 10.1175/JCLI-D-16-0539.1.Nguyen, An ; Ocaña, Victor ; Garg, Vikram ; Heimbach, Patrick ; Toole, John ; Krishfield, Richard ; Lee, Craig ; Rainville, Luc ( 2017 )., Oceanography, 2 ( 30 ), 69-73, 10.5670/oceanog.2017.223.Sarkar, S. ; Scotti, A. ( 2017 )., Annual Review of Fluid Mechanics, 1 ( 49 ), 195-220, 10.1146/annurev-fluid-010816-060013.Stepanov, Vladimir Nikolaevich ( 2017 )., Works of Hydrometeorological Research Center of the russian Federation, 364, 104-130.Koldunov, Nikolay V. ; Köhl, Armin ; Serra, Nuno ; Stammer, Detlef ( 2017 )., The Cryosphere, 5 ( 11 ), 2265-2281, 10.5194/tc-11-2265-2017.Melzer, B A ; Subrahmanyam, B ( 2017 )., IEEE Transactions on Geoscience and Remote Sensing, 2 ( 55 ), 907-914, 10.1109/TGRS.2016.2616760.Malpress, Veda ; Bestley, Sophie ; Corney, Stuart ; Welsford, Dirk ; Labrousse, Sara ; Sumner, Michael ; Hindell, Mark ( 2017 )., PLOS ONE, 9 ( 12 ), e0184536, 10.1371/journal.pone.0184536.Fogwill, Christopher J. ; van Sebille, Erik ; Cougnon, Eva A. ; Turney, Chris S. M. ; Rintoul, Steve R. ; Galton-Fenzi, Benjamin K. ; Clark, Graeme F. ; Marzinelli, E. M. ; Rainsley, Eleanor B. ; Carter, Lionel ( 2016 )., The Cryosphere, 6 ( 10 ), 2603-2609, 10.5194/tc-10-2603-2016.Spatar, Ciprian Bogdan ( 2016 )., Newcastle University.Buckley, Martha W. ; Marshall, John ( 2016 )., Reviews of Geophysics, 1 ( 54 ), 5-63, 10.1002/2015RG000493.Ward, Ben A. ; Follows, Michael J. ( 2016 )., Proceedings of the National Academy of Sciences, 11 ( 113 ), 2958-2963, 10.1073/pnas.1517118113.Monteiro, Fanny M. ; Bach, Lennart T. ; Brownlee, Colin ; Bown, Paul ; Rickaby, Rosalind E. M. ; Poulton, Alex J. ; Tyrrell, Toby ; Beaufort, Luc ; Dutkiewicz, Stephanie ; Gibbs, Samantha ; Gutowska, Magdalena A. ; Lee, Renee ; Riebesell, Ulf ; Young, Jeremy ; Ridgwell, Andy ( 2016 )., Science Advances, 7 ( 2 ), e1501822, 10.1126/sciadv.1501822.Talmy, D. ; Martiny, A.C. ; Hill, C. ; Hickman, A.E. ; Follows, M.J ( 2016 )., Global Biogeochemical Cycles, 2 ( 30 ), 311-332, 10.1002/2015GB005273.Sun, Yu ; Riva, Riccardo ; Ditmar, Pavel ( 2016 )., Journal of Geophysical Research : solid Earth, 11 ( 121 ), 8352-8370, 10.1002/2016JB013073.Mikolaj, M. ; Meurers, B. ; Güntner, A. ( 2016 )., Computers & Geosciences ( 93 ), 12-20, 10.1016/j.cageo.2016.04.014.Save, Himanshu ; Bettadpur, Srinivas ; Tapley, Byron D. ( 2016 )., Journal of Geophysical Research : solid Earth, 10 ( 121 ), 7547-7569, 10.1002/2016JB013007.Srivastava, Atul ; Dwivedi, Suneet ; Mishra, Alok Kumar ( 2016 )., Marine Geodesy, 3-4 ( 39 ), 271-289, 10.1080/01490419.2016.1173606.Sraj, Ihab ; Zedler, Sarah E. ; Knio, Omar M. ; Jackson, Charles S. ; Hoteit, Ibrahim ( 2016 )., Monthly Weather Review, 12 ( 144 ), 4621-4640, 10.1175/MWR-D-15-0394.1.Zedler, S. E. ; Jackson, C. S. ; Yao, F. ; Heimbach, P. ; Kohl, A. ; Scott, R. B. ; Hoteit, I ( 2016 ) .Song, Hajoon ; Marshall, John ; Munro, David R. ; Dutkiewicz, Stephanie ; Sweeney, Colm ; McGillicuddy, D. J. ; Hausmann, Ute ( 2016 )., Journal of Geophysical Research : Oceans, 9 ( 121 ), 6635-6649, 10.1002/2016JC011714.Wunsch, C ( 2016 )., Ann Rev Mar Sci ( 8 ), 1-33, 10.1146/annurev-marine-122414-034040.Soccodato, Alice ; D’Ovidio, Francesco ; Lévy, Marina ; Jahn, Oliver ; Follows, Michael J. ; De Monte, Silvia ( 2016 )., Marine Genomics ( 29 ), 9-17, 10.1016/j.margen.2016.04.015.Erickson, Zachary K ; Thompson, Andrew F ; Cassar, Nicolas ; Sprintall, Janet ; Mazloff, Matthew R ( 2016 )., Geophysical Research Letters, n/a-n/a, 10.1002/2016GL070565.Mazloff, Matthew R ; Boening, Carmen ( 2016 )., Geophysical Research Letters, 8 ( 43 ), 3822-3829, 10.1002/2016GL068474.Brzeziński, Aleksander ; Jóźwik, Mieczysław ; Kaczorowski, Marek ; Kalarus, Maciej ; Kasza, Damian ; Kosek, Wiesław ; Nastula, Jolanta ; Szczerbowski, Zbigniew ; Wińska, Małgorzata ; Wronowski, Roman ; Zdunek, Ryszard ; Zieliński, Janusz B. ( 2016 )., Reports on Geodesy and Geoinformatics, 1 ( 100 ), 131-147, 10.1515/rgg-2016-0011.Tamsitt, Veronica ; Talley, Lynne D. ; Mazloff, Matthew R. ; Cerovečki, Ivana ( 2016 )., Journal of Climate, 18 ( 29 ), 6563-6579, 10.1175/JCLI-D-15-0630.1.Liang, Xinfeng ; Yu, Lisan ( 2016 )., Journal of Climate, 10 ( 29 ), 3647-3660, 10.1175/JCLI-D-15-0626.1.Heaney, Kevin D. ( 2016 ) .Ocaña, Victor ; Zorita, Eduardo ; Heimbach, Patrick ( 2016 )., Journal of Geophysical Research : Oceans, 4 ( 121 ), 2183-2202, 10.1002/2015JC011301.Blunden, Jessica ; Arndt, Derek S. ( 2016 )., Bulletin of the american english Meteorological Society, 8 ( 97 ), Si-S275, 10.1175/2016BAMSStateoftheClimate.1.Zhang, Min ; Zhou, Lei ; Fu, Hongli ; Jiang, Lianghong ; Zhang, Xiangming ( 2016 )., Acta Oceanologica Sinica, 3 ( 35 ), 90-101, 10.1007/s13131-016-0820-2.Aksenov, Yevgeny ; Karcher, Michael ; Proshutinsky, Andrey ; Gerdes, Rüdiger ; de Cuevas, Beverly ; Golubeva, Elena ; Kauker, Frank ; Nguyen, An T. ; Platov, Gennady A. ; Wadley, Martin ; Watanabe, Eiji ; Coward, Andrew C. ; Nurser, A. J. George ( 2016 )., Journal of Geophysical Research : Oceans, 1 ( 121 ), 27-59, 10.1002/2015JC011299.Li, Xin ; Rignot, Eric ; Mouginot, Jeremie ; Scheuchl, Bernd ( 2016 )., Geophysical Research Letters, 12 ( 43 ), 6366-6373, 10.1002/2016GL069173.Vondrák, Jan ; Ron, Cyril ( 2016 )., Acta Geodynamica et Geomaterialia, 3 ( 13 ), 241-247, 10.13168/AGG.2016.0005.Abernathey, Ryan P ; Cerovecki, Ivana ; Holland, Paul R ; Newsom, Emily ; Mazloff, Matt ; Talley, Lynne D ( 2016 )., Nature Geoscience, 8 ( 9 ), 596-601, 10.1038/ngeo2749.Nie, Xunwei ; Gao, Shan ; Wang, Fan ; Qu, Tangdong ( 2016 )., Journal of Geophysical Research : Oceans, 12 ( 121 ), 8770-8786, 10.1002/2016JC012305.D’Addezio, Joseph Matthew ( 2016 ). ( 2016 ) .Rocha, Cesar B ; Chereskin, Teresa K ; Gille, Sarah T ; Menemenlis, Dimitris ( 2016 )., Journal of Physical Oceanography, 2 ( 46 ), 601-620, 10.1175/JPO-D-15-0087.1.Hughes, Chris W. ; Williams, Joanne ; Hibbert, Angela ; Boening, Carmen ; Oram, James ( 2016 )., Geophysical Research Letters, 13 ( 43 ), 7036-7043, 10.1002/2016GL069573.Yang, Qinghua ; Losch, Martin ; Losa, Svetlana N. ; Jung, Thomas ; Nerger, Lars ; Lavergne, Thomas ( 2016 )., The Cryosphere, 2 ( 10 ), 761-774, 10.5194/tc-10-761-2016.Schodlok, M P ; Menemenlis, Dimitris ; Rignot, E J ( 2016 )., Journal of Geophysical Research : Oceans, 2 ( 121 ), 1085-1109, 10.1002/2015JC011117.Rocha, Cesar B ; Gille, Sarah T ; Chereskin, Teresa K ; Menemenlis, Dimitris ( 2016 )., Geophys. Res. Lett., 21 ( 43 ), 11304-11311, 10.1002/2016GL071349.Sallée, J.-B. ; Mazloff, M ; Meredith, M P ; Hughes, C W ; Rintoul, S ; Gomez, R ; Metzl, N ; Monaco, C Lo ; Schmidtko, S ; Mata, M M ; W\r ahlin, A ; Swart, S ; Williams, M J M ; Naveria-Garabata, A C ; Monteiro, P ( 2016 )., Bull. Amer. Meteor. Soc. ( 97 ), S166-S168.Liu, Junjie ; Bowman, Kevin W. ; Lee, Meemong ( 2016 )., Journal of Geophysical Research : Atmospheres, 21 ( 121 ), 13,066-13,087, 10.1002/2016JD025100.Jönsson, Bror F. ; Watson, James R. ( 2016 )., Nature Communications, 1 ( 7 ), 11239, 10.1038/ncomms11239.Chowdary, Jasti ; Srinivas, G. ; Fousiya, T.S. ; Parekh, Anant ; Gnanaseelan, C. ; Seo, Hyodae ; MacKinnon, Jennifer ( 2016 )., Oceanography, 2 ( 29 ), 38-49, 10.5670/oceanog.2016.37.Su, Zhan ( 2016 ) .Pemberton, P. ; Nilsson, J. ( 2016 )., Journal of Geophysical Research : Oceans, 1 ( 121 ), 792-817, 10.1002/2015JC011003.Wineteer, Alexander Grant ( 2016 ) .Chaudhuri, A H ; Ponte, R M ; Forget, G ( 2016 )., Ocean Modelling ( 100 ), 96-108, 10.1016/j.ocemod.2016.02.003.Scharffenberg, Martin G ; Köhl, Armin ; Stammer, Detlef ( 2016 )., Surveys in Geophysics, 1 ( 38 ), 1-35, 10.1007/s10712-016-9401-3.Piecuch, Christopher G ; Dangendorf, Sönke ; Ponte, Rui M ; Marcos, Marta ( 2016 )., Journal of Climate, 13 ( 29 ), 4801-4816, 10.1175/JCLI-D-16-0048.1.DeVaney, Shannon C. ( 2016 )., Integrative and Comparative Biology, 4 ( 56 ), 524-530, 10.1093/icb/icw032.Li, J. ; Liu, K. ; Huang, Q. ( 2016 )., Cloud Computing in Ocean and Atmospheric Sciences, 347-364, 10.1016/B978-0-12-803192-6.00017-7.Bulgin, C.E. ; Embury, O. ; Merchant, C.J. ( 2016 )., Remote Sensing of Environment ( 177 ), 287-294, 10.1016/j.rse.2016.02.021.Cerovečki, Ivana ; Giglio, Donata ( 2016 )., Journal of Climate, 6 ( 29 ), 2177-2199, 10.1175/JCLI-D-15-0179.1.Li, Weiwei ; avant-garde Dam, Tonie ; Li, Zhao ; Shen, Yunzhong ( 2016 )., Studia Geophysica et Geodaetica, 4 ( 60 ), 608-621, 10.1007/s11200-016-0205-1.Hu, Shijian ; Sprintall, Janet ( 2016 )., Journal of Geophysical Research : Oceans, 4 ( 121 ), 2596-2615, 10.1002/2015JC011495.Bloshkina, Ekaterina Vladimirovna ; Makhotin, Mikhail S. ; Volkov, Denis L. ; Koldunov, N. V. ( 2016 )., Scientific Records of the russian State Hydrometeorological University, 67-88.Su, Zhan ; Ingersoll, Andrew P. ( 2016 )., Journal of Physical Oceanography, 9 ( 46 ), 2663-2674, 10.1175/JPO-D-16-0074.1.Yang, Qingxuan ; Zhao, Wei ; Liang, Xinfeng ; Tian, Jiwei ( 2016 )., Journal of Physical Oceanography, 3 ( 46 ), 769-788, 10.1175/JPO-D-14-0220.1.Chen, Ru ; Thompson, Andrew F. ; Flierl, Glenn R. ( 2016 )., Journal of Physical Oceanography, 9 ( 46 ), 2827-2850, 10.1175/JPO-D-16-0012.1.Bloshkina, Ekaterina Vladimirovna ; Ivanov, Vladimir Vladimirovich ( 2016 )., Works of Hydrometeorological Research Center of the russian Federation, 361, 146-168.Zhang, Yu ; Chen, Changsheng ; Beardsley, Robert C. ; Gao, Guoping ; Qi, Jianhua ; Lin, Huichan ( 2016 )., Journal of Geophysical Research : Oceans, 11 ( 121 ), 8320-8350, 10.1002/2016JC011841.Amrhein, Daniel E. ( 2016 )., Inferring ocean circulation during the last Glacial Maximum and stopping point deglaciation using data and models, 192, 10.1575/1912/8428.Sánchez, L. ; Čunderlík, R. ; Dayoub, N. ; Mikula, K. ; Minarechová, Z. ; Šíma, Z. ; Vatrt, V. ; Vojtíšková, M. ( 2016 )., Journal of Geodesy, 9 ( 90 ), 815-835, 10.1007/s00190-016-0913-x.Huang, Xumei ; Wang, Weiqiang ; Liu, Hailong ( 2016 )., Journal of Tropical Oceanography, 4 ( 35 ), 11-20, 10.11978/2015126.Maulik, Romit ; San, Omer ( 2016 )., Journal of Ocean Engineering and Science, 4 ( 1 ), 300-324, 10.1016/j.joes.2016.08.002.Song, Hajoon ; Marshall, John ; Follows, Michael J. ; Dutkiewicz, Stephanie ; Forget, Gaël ( 2016 )., Journal of Marine Systems ( 158 ), 120-128, 10.1016/j.jmarsys.2016.02.009.Wu, Yang ; Zhai, Xiaoming ; Wang, Zhaomin ( 2016 )., Journal of Climate, 16 ( 29 ), 5709-5724, 10.1175/JCLI-D-15-0819.1.Lee, Younjoo J. ; Matrai, Patricia A. ; Friedrichs, Marjorie A. M. ; Saba, Vincent S. ; Aumont, Olivier ; Babin, Marcel ; Buitenhuis, Erik T. ; Chevallier, Matthieu ; de Mora, Lee ; Dessert, Morgane ; Dunne, John P. ; Ellingsen, Ingrid H. ; Feldman, Doron ; Frouin, Robert ; Gehlen, Marion ; Gorgues, Thomas ; Ilyina, Tatiana ; Jin, Meibing ; John, Jasmin G. ; Lawrence, Jon ; Manizza, Manfredi ; Menkes, Christophe E. ; Perruche, Coralie ; Le Fouest, Vincent ; Popova, Ekaterina E. ; Romanou, Anastasia ; Samuelsen, Annette ; Schwinger, Jörg ; Séférian, Roland ; Stock, Charles A. ; Tjiputra, Jerry ; Tremblay, L. Bruno ; Ueyoshi, Kyozo ; Vichi, Marcello ; Yool, Andrew ; Zhang, Jinlun ( 2016 )., Journal of Geophysical Research : Oceans, 12 ( 121 ), 8635-8669, 10.1002/2016JC011993.Stammer, D ; Balmaseda, M ; Heimbach, P ; Kohl, A ; Weaver, A ( 2016 )., Ann Rev Mar Sci ( 8 ), 491-518, 10.1146/annurev-marine-122414-034113.Jones, Daniel C ; Meijers, Andrew J S ; Shuckburgh, Emily ; Sallée, Jean-Baptiste ; Haynes, Peter ; McAufield, Ewa K ; Mazloff, Matthew R ( 2016 )., Journal of Geophysical Research : Oceans, 9 ( 121 ), 6558-6582, 10.1002/2016JC011680.Jung, Thomas ; Gordon, Neil D. ; Bauer, Peter ; Bromwich, David H. ; Chevallier, Matthieu ; Day, Jonathan J. ; Dawson, Jackie ; Doblas-Reyes, Francisco ; Fairall, Christopher ; Goessling, Helge F. ; Holland, Marika ; Inoue, Jun ; Iversen, Trond ; Klebe, Stefanie ; Lemke, Peter ; Losch, Martin ; Makshtas, Alexander ; Mills, Brian ; Nurmi, Pertti ; Perovich, Donald ; Reid, Philip ; Renfrew, Ian A. ; Smith, Gregory ; Svensson, Gunilla ; Tolstykh, Mikhail ; Yang, Qinghua ( 2016 )., Bulletin of the american english Meteorological Society, 9 ( 97 ), 1631-1647, 10.1175/BAMS-D-14-00246.1.Tagliabue, A ; Aumont, O ; DeAth, R ; Dunne, J P ; Dutkiewicz, Stephanie ; Galbraith, E ; Misumi, K ; Moore, J K ; Ridgwell, A ; Sherman, E ; Stock, C ; Vichi, M ; Volker, C ; Yool, A ( 2016 )., Global Biogeochemical Cycles, 2 ( 30 ), 149-174, 10.1002/2015gb005289.Proshutinsky, A. ; Steele, M. ; Timmermans, M.-L. ( 2016 )., Journal of Geophysical Research : Oceans, 6 ( 121 ), 3803-3819, 10.1002/2016JC011898.Ashkezari, Mohammad D ; Hill, Christopher N ; Follett, Christopher N ; Forget, Gaël ; Follows, Michael J. ( 2016 )., Geophysical Research Letters, 23 ( 43 ), 12,212-234,241, 10.1002/2016GL071269.Scanlon, Bridget R. ; Zhang, Zizhan ; Save, Himanshu ; Wiese, David N. ; Landerer, Felix W. ; Long, Di ; Longuevergne, Laurent ; Chen, Jianli ( 2016 )., Water Resources Research, 12 ( 52 ), 9412-9429, 10.1002/2016WR019494.Bender, Peter L ; Betts, Casey R ( 2016 )., Journal of Geophysical Research : solid Earth, 2 ( 121 ), 1218-1235, 10.1002/2015JB012433.Whitefield, Jonathan David ( 2016 ) .McNeely, Jeffrey A. ( 2016 )., Oryx, 02 ( 50 ), 375, 10.1017/S0030605316000168.Fenoglio-Marc, Luciana ( 2016 ) .Ponte, R M ; Vinogradova, N T ( 2016 )., Geophysical Research Letters, 13 ( 43 ), 7052-7058, 10.1002/2016GL069857.Zhao, Jiechen ; Yang, Qinghua ; Li, Ming ; Li, Qun ; Li, Chunhua ; Tian, Zhongxiang ; Zhang, Lin ( 2016 )., Acta Oceanologica Sinica, 5 ( 38 ), 70-82, 10.3969/j.issn.0253-4193.2016.05.007.Zhao, Zhongxiang ( 2016 )., Geophysical Research Letters, 17 ( 43 ), 9157-9164, 10.1002/2016GL070567.Wang, Jinbo ; Mazloff, Matthew R ; Gille, Sarah T ( 2016 )., Journal of Physical OceanographyJournal of Physical Oceanography.Vinogradova, Nadya ; Lee, Tong ; Durack, Paul ; Boutin, Jacqueline ; Stammer, Detlef ( 2016 )., GEWEX News, 6-8.Rignot, E ; Xu, Y ; Menemenlis, Dimitris ; Mouginot, J ; Scheuchl, B ; Li, X ; Morlighem, M ; Seroussi, Hélène ; van den Broeke, M ; Fenty, Ian ; Cai, C ; An, L ; de Fleurian, B ( 2016 )., Geophysical Research Letters, 12 ( 43 ), 6374-6382, 10.1002/2016GL068784.McGillicuddy, Dennis J. ( 2016 )., Annual Review of Marine Science, 1 ( 8 ), 125-159, 10.1146/annurev-marine-010814-015606.Nowicki, Sophie M. J. ; Payne, Anthony ; Larour, Eric ; Seroussi, Helene ; Goelzer, Heiko ; Lipscomb, William ; Gregory, Jonathan ; Abe-Ouchi, Ayako ; Shepherd, Andrew ( 2016 )., Geoscientific Model Development, 12 ( 9 ), 4521-4545, 10.5194/gmd-9-4521-2016.Heaney, Kevin D. ; Campbell, Richard L. ( 2016 )., The Journal of the Acoustical Society of America, 2 ( 139 ), 918-926, 10.1121/1.4942112.Zhang, Ying ; Du, Yan ; Zhang, Yuhong ; Gao, Shan ( 2016 )., Acta Oceanologica Sinica, 7 ( 35 ), 42-49, 10.1007/s13131-016-0904-z.Chemke, R. ; Kaspi, Y. ( 2016 )., Geophysical Research Letters, 6 ( 43 ), 2723-2731, 10.1002/2016GL067847.Yang, Qinghua ; Losch, Martin ; Losa, Svetlana N. ; Jung, Thomas ; Nerger, Lars ( 2016 )., Journal of Atmospheric and Oceanic Technology, 3 ( 33 ), 397-407, 10.1175/JTECH-D-15-0176.1.Piecuch, Christopher Gilbert ( 2016 ) .Thompson, P R ; Piecuch, C G ; Merrifield, M A ; McCreary, J P ; Firing, E ( 2016 )., Journal of Geophysical Research : Oceans, 9 ( 121 ), 6762-6778, 10.1002/2016JC012132.Rodriguez, Angelica R ; Mazloff, Matthew R ; Gille, Sarah T ( 2016 )., Journal of Geophysical Research : Oceans, 5 ( 121 ), 3337-3349, 10.1002/2015JC011402.Firing, Yvonne L ; Chereskin, Teresa K ; Watts, D Randolph ; Mazloff, Matthew R ( 2016 )., Journal of Geophysical Research : Oceans, n/a-n/a, 10.1002/2016JC011682.Dushaw, Brian D. ; Rehm, Eric ( 2016 ) .Ngeve, Magdalene N ; Van five hundred Stocken, Tom ; Menemenlis, Dimitris ; Koedam, Nico ; Triest, Ludwig ( 2016 )., PLoS ONE, 3 ( 11 ), e0150950, 10.1371/journal.pone.0150950.Evans, Dafydd Gwyn ( 2016 ) .Chien, Chia-Te ; Mackey, Katherine R M ; Dutkiewicz, Stephanie ; Mahowald, Natalie M ; Prospero, Joseph M ; Paytan, Adina ( 2016 )., Global Biogeochemical Cycles, 5 ( 30 ), 716-734, 10.1002/2015GB005334.Wiese, David N. ; Landerer, Felix W. ; Watkins, Michael M. ( 2016 )., Water Resources Research, 9 ( 52 ), 7490-7502, 10.1002/2016WR019344.Wińska, Małgorzata ; Nastula, Jolanta ; Kołaczek, Barbara ( 2016 )., Acta Geophysica, 1 ( 64 ), 270-292, 10.1515/acgeo-2015-0041.Musgrave, R C ; Pinkel, R ; MacKinnon, J A ; Mazloff, Matthew R ; Young, W R ( 2016 )., Journal of Fluid Mechanics ( 793 ), 933-957, 10.1017/jfm.2016.150.Nicholson, D P ; Khatiwala, S ; Heimbach, P ( 2016 ) .Dobslaw, Henryk ; Bergmann-Wolf, Inga ; Forootan, Ehsan ; Dahle, Christoph ; Mayer-Gürr, Torsten ; Kusche, Jürgen ; Flechtner, Frank ( 2016 )., Journal of Geodesy, 5 ( 90 ), 423-436, 10.1007/s00190-015-0884-3.Pillar, Helen R ; Heimbach, Patrick ; Johnson, Helen L ; Marshall, David P ( 2016 )., Journal of Climate, 9 ( 29 ), 3339-3352, 10.1175/JCLI-D-15-0727.1.Resplandy, L. ; Keeling, R. F. ; Stephens, B. B. ; Bent, J. D. ; Jacobson, A. ; Rödenbeck, C. ; Khatiwala, S. ( 2016 )., Climate Dynamics, 9-10 ( 47 ), 3335-3357, 10.1007/s00382-016-3029-3.Danabasoglu, Gokhan ; Yeager, Steve G ; Kim, Who M ; Behrens, Erik ; Bentsen, Mats ; Bi, Daohua ; Biastoch, Arne ; Bleck, Rainer ; Böning, Claus ; Bozec, Alexandra ; Canuto, Vittorio M ; Cassou, Christophe ; Chassignet, Eric ; Coward, Andrew C ; Danilov, Sergey ; Diansky, Nikolay ; Drange, Helge ; Farneti, Riccardo ; Fernandez, Elodie ; Fogli, Pier Giuseppe ; Forget, Gael ; Fujii, Yosuke ; Griffies, Stephen M ; Gusev, Anatoly ; Heimbach, Patrick ; Howard, Armando ; Ilicak, Mehmet ; Jung, Thomas ; Karspeck, Alicia R ; Kelley, Maxwell ; Large, William G ; Leboissetier, Anthony ; Lu, Jianhua ; Madec, Gurvan ; Marsland, Simon J ; Masina, Simona ; Navarra, Antonio ; Nurser, A J George ; Pirani, Anna ; Romanou, Anastasia ; Salas y Mélia, David ; Samuels, Bonita L ; Scheinert, Markus ; Sidorenko, Dmitry ; Sun, Shan ; Treguier, Anne-Marie ; Tsujino, Hiroyuki ; Uotila, Petteri ; Valcke, Sophie ; Voldoire, Aurore ; Wang, Qiang ; Yashayaev, Igor ( 2016 )., Ocean Modelling ( 97 ), 65-90, 10.1016/j.ocemod.2015.11.007.Ubelmann, Clement ; Cornuelle, Bruce ; Fu, Lee-Lueng ( 2016 )., Journal of Atmospheric and Oceanic Technology, 8 ( 33 ), 1691-1699, 10.1175/JTECH-D-15-0163.1.D’Addezio, Joseph Matthew ( 2016 ) .D’Addezio, Joseph M. ; Subrahmanyam, Bulusu ; Nyadjro, Ebenezer S. ; Murty, V. S. N. ; ( 2015 )., Journal of Physical Oceanography, 7 ( 45 ), 1947-1966, 10.1175/JPO-D-14-0210.1.Valett, Jacqueline Grace ( 2015 )., Georgia Tech Library.Valsala, Vinu ; Murtugudde, Raghu ( 2015 )., Deep Sea Research Part I : Oceanographic Research Papers ( 103 ), 101-113, 10.1016/j.dsr.2015.06.001.Raghukumar, Kaustubha ; Edwards, Christopher A. ; Goebel, Nicole L. ; Broquet, Gregoire ; Veneziani, Milena ; Moore, Andrew M. ; Zehr, Jon P. ( 2015 )., Progress in Oceanography ( 18 ), 546-558, 10.1016/j.pocean.2015.01.004.Bentel, K. ; Landerer, F.W. ; Boening, C. ( 2015 )., Ocean Science, 6 ( 11 ), 953-963, 10.5194/os-11-953-2015.Bonin, J. A. ; Chambers, D. P. ( 2015 )., The Cryosphere, 5 ( 9 ), 1761-1772, 10.5194/tc-9-1761-2015.Makowski, Jessica K. ; Chambers, Don P. ; Bonin, Jennifer A. ( 2015 )., Journal of Geophysical Research : Oceans, 6 ( 120 ), 4245-4259, 10.1002/2014JC010575.Keating, Shane R. ; Smith, K. Shafer ( 2015 )., Journal of Geophysical Research : Oceans, 2 ( 120 ), 1197-1214, 10.1002/2014JC010357.Ferrari, Raffaele ; Merrifield, Sophia T. ; Taylor, John R. ( 2015 )., Journal of Marine Systems ( 147 ), 116-122, 10.1016/j.jmarsys.2014.02.009.Cole, Sylvia T ; Wortham, Cimarron ; Kunze, Eric ; Owens, W Brechner ( 2015 )., Geophysical Research Letters, 10 ( 42 ), 3989-3997, 10.1002/2015GL063827.Dutkiewicz, Stephanie ; Hickman, A E ; Jahn, O ; Gregg, W W ; Mouw, C B ; Follows, Michael J. ( 2015 )., Biogeosciences, 14 ( 12 ), 4447-4481, 10.5194/bg-12-4447-2015.Yang, Qinghua ; Losa, Svetlana N. ; Losch, Martin ; Jung, Thomas ; Nerger, Lars ( 2015 )., quarterly Journal of the Royal Meteorological Society, 691 ( 141 ), 2314-2323, 10.1002/qj.2523.Forget, Gaël ; Ponte, Rui M ( 2015 )., Progress in Oceanography ( 137, Part ), 173-195, 10.1016/j.pocean.2015.06.002.Quinn, Katherine J ; Ponte, Rui M ; Tamisiea, Mark E ( 2015 )., Journal of Geophysical Research : solid Earth, 6 ( 120 ), 4510-4521, 10.1002/2015JB011980.Ron, Cyril ; Vondrák, Jan ; Chapanov, Yavor ( 2015 )., Proceedings of the IX Bulgarian-Serbian Astronomical league : Astroinformatics ( IX BSACA ), 15, 127-135.Wang, Zeliang ; Han, Guoqi ; Dupont, Frederic ( 2015 )., Atmosphere-Ocean, 3 ( 53 ), 351-362, 10.1080/07055900.2015.1050352.Le Fouest, V. ; Manizza, M. ; Tremblay, B. ; Babin, M. ( 2015 )., Biogeosciences, 11 ( 12 ), 3385-3402, 10.5194/bg-12-3385-2015.Brix, Holger ; Menemenlis, Dimitris ; Hill, Christopher N. ; Dutkiewicz, Stephanie ; Jahn, Oliver ; Wang, D ; Bowman, Kevin W. ; Zhang, Hong ( 2015 )., Ocean Modelling ( 95 ), 1-14, 10.1016/j.ocemod.2015.07.008.D’Addezio, Joseph M. ; Subrahmanyam, Bulusu ; Nyadjro, Ebenezer S. ; Murty, V. S. N. ( 2015 )., Journal of Physical Oceanography, 7 ( 45 ), 1947-1966, 10.1175/JPO-D-14-0210.1.Wunsch, Carl ( 2015 ) .Yang, Tingting ; Xu, Yongsheng ( 2015 )., Journal of Geophysical Research : Oceans, 4 ( 120 ), 3043-3060, 10.1002/2015JC010752.Masich, Jessica ; Chereskin, Teresa K. ; Mazloff, Matthew R. ( 2015 )., Journal of Geophysical Research : Oceans, 12 ( 120 ), 7919-7933, 10.1002/2015JC011143.Wang, Shihong ; Liu, Zhiliang ; Pang, Chongguang ( 2015 )., Journal of Geophysical Research : Oceans, 7 ( 120 ), 4891-4906, 10.1002/2014JC010476.Ostle, Clare ; Johnson, Martin ; Landschützer, Peter ; Schuster, Ute ; Hartman, Susan ; Hull, Tom ; Robinson, Carol ( 2015 )., Global Biogeochemical Cycles, 1 ( 29 ), 80-95, 10.1002/2014GB004868.Volkov, Denis L. ; Kubryakov, Arseny A. ; Lumpkin, Rick ( 2015 )., Deep Sea Research Part I : Oceanographic Research Papers ( 105 ), 142-157, 10.1016/j.dsr.2015.09.001.Lüpkes, Christof ; Gryanik, Vladimir M. ( 2015 )., Mercator Ocean Quarterly Newsletter, 51, 29-34.Piecuch, C. G. ; Ponte, R. M. ( 2015 )., Ocean Science, 1 ( 11 ), 175-185, 10.5194/os-11-175-2015.Göttl, F. ; Schmidt, M. ; Seitz, F. ; Bloßfeld, M. ( 2015 )., Journal of Geodesy, 4 ( 89 ), 377-390, 10.1007/s00190-014-0782-0.Forget, G ; Ferreira, D ; Liang, X ( 2015 )., Ocean Sci., 5 ( 11 ), 839-853, 10.5194/os-11-839-2015.Wang, Xiaochun ; Zhao, Liqing ; Li, Zhijin ; Menemenlis, Dimitris ( 2015 )., aquatic Ecosystem Health & Management, 4 ( 18 ), 443-453, 10.1080/14634988.2015.1112123.Vinogradova, Nadya T ; Ponte, Rui M ; Quinn, Katherine J ; Tamisiea, Mark E ; Campin, Jean-Michel ; Davis, James L ( 2015 )., Journal of Physical Oceanography, 3 ( 45 ), 678-689, 10.1175/JPO-D-14-0150.1.Fukumori, I ( 2015 )., Advanced Data Assimilation for Geosciences : call on the carpet Notes of the Les Houches School of Physics : limited Issue, June 2012, 608pp.Villar, E. ; Farrant, G. K. ; Follows, Michael J. ; Garczarek, L. ; Speich, S. ; Audic, S. ; Bittner, L. ; Blanke, B. ; Brum, J. R. ; Brunet, C. ; Casotti, R. ; Chase, A. ; Dolan, J. R. ; D’Ortenzio, F. ; Gattuso, J.-P. ; Grima, N. ; Guidi, L. ; Hill, C. N. ; Jahn, O. ; Jamet, J.-L. ; Le Goff, H. ; Lepoivre, C. ; Malviya, S. ; Pelletier, E. ; Romagnan, J.-B. ; Roux, S. ; Santini, S. ; Scalco, E. ; Schwenck, S. M. ; Tanaka, A. ; Testor, P. ; Vannier, T. ; Vincent, F. ; Zingone, A. ; Dimier, C. ; Picheral, M. ; Searson, S. ; Kandels-Lewis, S. ; Acinas, S. G. ; Bork, P. ; Boss, E. ; de Vargas, C. ; Gorsky, G. ; Ogata, H. ; Pesant, S. ; Sullivan, M. B. ; Sunagawa, S. ; Wincker, P. ; Karsenti, E. ; Bowler, C. ; not, F. ; Hingamp, P. ; Iudicone, D. ( 2015 )., Science, 6237 ( 348 ), 1261447-1261447, 10.1126/science.1261447.Halpern, David ; Menemenlis, Dimitris ; Wang, Xiaochun ( 2015 )., Journal of Atmospheric and Oceanic Technology, 1 ( 32 ), 131-143, 10.1175/JTECH-D-14-00025.1.Duarte, Pedro ; Assmy, Philipp ; Hop, Haakon ; Spreen, Gunnar ; Gerland, Sebastian ; Hudson, Stephen R. ( 2015 )., Journal of Marine Systems ( 145 ), 69-90, 10.1016/j.jmarsys.2014.12.004.Polkova, Iuliia ; Köhl, Armin ; Stammer, Detlef ( 2015 )., Journal of Climate, 18 ( 28 ), 7407-7419, 10.1175/JCLI-D-14-00811.1.Rudnick, Daniel L. ; Gopalakrishnan, Ganesh ; Cornuelle, Bruce D. ( 2015 )., Journal of Physical Oceanography, 1 ( 45 ), 313-326, 10.1175/JPO-D-14-0138.1.Forget, G ; Fukumori, I ; Heimbach, P ; Lee, T ; Menemenlis, Dimitris ; Ponte, R M ( 2015 )., CLIVAR Exchanges, 2 ( 19 ), 41-45.Yan, C X ; Zhu, J ; Xie, J P ( 2015 )., Advances in Atmospheric Sciences, 11 ( 32 ), 1460-1472, 10.1007/s00376-015-4121-z.Hill, Christopher N. ( 2015 ) .Piecuch, Christopher G ; Heimbach, Patrick ; Ponte, Rui M ; Forget, Gaël ( 2015 )., Ocean Modelling ( 96, Part 2 ), 214-220, 10.1016/j.ocemod.2015.10.008.Chen, Zhaohui ; Wu, Lixin ( 2015 )., Journal of Physical Oceanography, 6 ( 45 ), 1757-1770, 10.1175/JPO-D-14-0085.1.Meredith, M P ; Mazloff, M ; Sallée, J.-B. ; Newman, L ; Wåhlin, A ; Williams, M J M ; Garabato, A C Naveira ; Swart, S ; Monteiro, P ; Mata, Mauricio M. ; Schmidtko, S. ( 2015 )., Bull. Amer. Meteor. Soc. ( 96 ), S157-S160.Fujii, Yosuke ; Cummings, James ; Xue, Yan ; Schiller, Andreas ; Lee, Tong ; Balmaseda, Magdalena Alonso ; Rémy, Elisabeth ; Masuda, Shuhei ; Brassington, Gary ; Alves, Oscar ; Cornuelle, Bruce ; Martin, Matthew ; Oke, Peter ; Smith, Gregory ; Yang, Xiaosong ( 2015 )., quarterly Journal of the Royal Meteorological Society, 692 ( 141 ), 2481-2496, 10.1002/qj.2579.Dushaw, Brian D. ( 2015 ) .Liang, Xinfeng ; Wunsch, Carl ; Heimbach, Patrick ; Forget, Gael ( 2015 )., Journal of Climate, 9 ( 28 ), 3821-3833, 10.1175/JCLI-D-14-00550.1.Volkov, Denis L. ; Landerer, Felix W. ( 2015 )., Climate Dynamics, 9-10 ( 45 ), 2633-2646, 10.1007/s00382-015-2498-0.Mu, Longjiang ; Zhao, Jinping ( 2015 )., Haiyang Xuebao, 11 ( 37 ), 79-91, 10.3969/j.issn.0253-4193.2015.11.008.Seo, Gwang-Ho ; Choi, Byoung-Ju ; Cho, Yang-Ki ; Kim, Young Ho ; Kim, Sangil ( 2015 )., Ocean Science Journal, 1 ( 50 ), 29-48, 10.1007/s12601-015-0003-7.Yang, Qinghua ; Losa, Svetlana N. ; Losch, Martin ; Liu, Jiping ; Zhang, Zhanhai ; Nerger, Lars ; Yang, Hu ( 2015 )., Annals of Glaciology, 69 ( 56 ), 38-44, 10.3189/2015AoG69A740.Buckley, Martha W ; Ponte, Rui M ; Forget, Gaël ; Heimbach, Patrick ( 2015 )., Journal of Climate, 10 ( 28 ), 3943-3956, 10.1175/JCLI-D-14-00579.1.Brown, Peter J. ; Jullion, Loïc ; Landschützer, Peter ; Bakker, Dorothee C. E. ; Naveira Garabato, Alberto C. ; Meredith, Michael P. ; Torres-Valdés, Sinhue ; Watson, Andrew J. ; Hoppema, Mario ; Loose, Brice ; Jones, Elizabeth M. ; Telszewski, Maciej ; Jones, Steve D. ; Wanninkhof, Rik ( 2015 )., Global Biogeochemical Cycles, 3 ( 29 ), 288-306, 10.1002/2014GB005006.Bigdeli, Arash ( 2015 ) .McCaffrey, Katherine ; Fox-Kemper, Baylor ; Forget, Gael ( 2015 )., Journal of Physical Oceanography, 7 ( 45 ), 1773-1793, 10.1175/JPO-D-14-0023.1.Chen, Zhaohui ; Wu, Lixin ; Qiu, Bo ; Li, Lei ; Hu, Dunxin ; Liu, Chengyan ; Jia, Fan ; Liang, Xi ( 2015 )., Journal of Geophysical Research : Oceans, 4 ( 120 ), 2460-2470, 10.1002/2014JC010590.Bogusz, Janusz ; Brzezinski, Aleksander ; Kosek, Wieslaw ; Nastula, Jolanta ( 2015 )., Geodesy and Cartography, 2 ( 64 ), 201-242, 10.1515/geocart-2015-0013.Balmaseda, M A ; Hernandez, F ; Storto, A ; Palmer, M D ; Alves, O ; Shi, L ; Smith, G C ; Toyoda, T ; Valdivieso, M ; Barnier, B ; Behringer, D ; Boyer, T ; Chang, Y S ; Chepurin, G A ; Ferry, N ; Forget, G ; Fujii, Y ; Good, S ; Guinehut, S ; Haines, K ; Ishikawa, Y ; Keeley, S ; Köhl, A ; Lee, T ; Martin, M J ; Masina, S ; Masuda, S ; Meyssignac, B ; Mogensen, K ; Parent, L ; Peterson, K A ; Tang, Y M ; Yin, Y ; Vernieres, G ; Wang, X ; Waters, J ; Wedd, R ; Wang, O ; Xue, Y ; Chevallier, M ; Lemieux, J F ; Dupont, F ; Kuragano, T ; Kamachi, M ; Awaji, T ; Caltabiano, A ; Wilmer-Becker, K ; Gaillard, F ( 2015 )., Journal of Operational Oceanography, sup1 ( 8 ), s80-s97, 10.1080/1755876X.2015.1022329.Forget, G ; Campin, Jean-Michel ; Heimbach, P ; Hill, C N ; Ponte, R M ; Wunsch, C ( 2015 )., Geosci. Model Dev., 10 ( 8 ), 3071-3104, 10.5194/gmd-8-3071-2015.Higginson, S. ; Thompson, K. R. ; Woodworth, P. L. ; Hughes, C. W. ( 2015 )., Geophysical Research Letters, 5 ( 42 ), 1471-1479, 10.1002/2015GL063186.Vondrák, Jan ; Ron, C. ( 2015 )., serbian Astronomical Journal, 191, 59-66, 10.2298/SAJ1591059V.Cerovečki, Ivana ; Mazloff, Matthew R ( 2015 )., Journal of Physical OceanographyJournal of Physical Oceanography, 10.1175/JPO-D-14-0243.1.Chen, Ru ; Flierl, Glenn R. ; Wunsch, Carl ( 2015 )., Journal of Physical Oceanography, 2 ( 45 ), 387-406, 10.1175/JPO-D-14-0038.1.Kunze, Eric ( 2015 ) .Zemskova, Varvara E. ; White, Brian L. ; Scotti, Alberto ( 2015 )., Journal of Physical Oceanography, 6 ( 45 ), 1510-1531, 10.1175/JPO-D-14-0043.1.Watkins, Michael M. ; Wiese, David N. ; Yuan, Dah-Ning ; Boening, Carmen ; Landerer, Felix W. ( 2015 )., Journal of Geophysical Research : solid Earth, 4 ( 120 ), 2648-2671, 10.1002/2014JB011547.Flexas, M. M. ; Schodlok, M. P. ; Padman, L. ; Menemenlis, Dimitris ; Orsi, A. H. ( 2015 )., Journal of Geophysical Research : Oceans, 5 ( 120 ), 3658-3680, 10.1002/2014JC010372.Liu, Junjie ; Bowman, Kevin W. ; Henze, Daven K. ( 2015 )., Journal of Geophysical Research : Atmospheres, 10 ( 120 ), 5214-5236, 10.1002/2014JD022914.Whitefield, Jonathan ; Winsor, Peter ; McClelland, James ; Menemenlis, Dimitris ( 2015 )., Ocean Modelling ( 88 ), 1-15, 10.1016/j.ocemod.2014.12.012.Furue, Ryo ; Jia, Yanli ; McCreary, Julian P. ; Schneider, Niklas ; Richards, Kelvin J. ; Müller, Peter ; Cornuelle, Bruce D. ; Avellaneda, Nidia Martínez ; Stammer, Detlef ; Liu, Chuanyu ; Köhl, Armin ( 2015 )., Ocean Modelling ( 91 ), 91-111, 10.1016/j.ocemod.2014.10.002.Root, T L ; Hall, K R ; Herzog, M P ; Howell, C A ( 2015 ) .Tyler, Robert ( 2015 )., Terrestrial, Atmospheric and Oceanic Sciences, 1 ( 26 ), 41-52, 10.3319/TAO.2014.08.19.04 ( GRT ) .Wang, Yonggang ; Wei, Zexun ; Lian, Zhan ; Yang, Yongzeng ( 2015 )., aquatic Procedia ( 3 ), 157-164, 10.1016/j.aqpro.2015.02.206.Dinniman, Michael S. ; Klinck, John M. ; Bai, Le-Sheng ; Bromwich, David H. ; Hines, Keith M. ; Holland, David M. ( 2015 )., Journal of Climate, 15 ( 28 ), 6067-6085, 10.1175/JCLI-D-14-00374.1.Stroh, J. N. ; Panteleev, Gleb ; Kirillov, Sergey ; Makhotin, Mikhail ; Shakhova, Natalia ( 2015 )., Journal of Geophysical Research : Oceans, 11 ( 120 ), 7223-7236, 10.1002/2015JC011005.Van five hundred Stocken, Tom ( 2015 ) .Halkides, D J ; Waliser, Duane E ; Lee, Tong ; Menemenlis, Dimitris ; Guan, Bin ( 2015 )., Journal of Geophysical Research : Oceans, 2 ( 120 ), 692-715, 10.1002/2014JC010139.Ott, Lesley E ; Pawson, Steven ; Collatz, George J ; Gregg, Watson W ; Menemenlis, Dimitris ; Brix, Holger ; Rousseaux, Cecile S ; Bowman, Kevin W. ; Liu, Junjie ; Eldering, Annmarie ; Gunson, Michael R ; Kawa, Stephan R ( 2015 )., Journal of Geophysical Research : Atmospheres, 2 ( 120 ), 734-765, 10.1002/2014JD022411.Dorman, Jeffrey G. ( 2015 )., Conserving Biodiversity in a change climate : Linking Science and Management in Conservation, 43-60.Edwards, Christopher A. ; Moore, Andrew M. ; Hoteit, Ibrahim ; Cornuelle, Bruce D. ( 2015 )., Annual Review of Marine Science, 1 ( 7 ), 21-42, 10.1146/annurev-marine-010814-015821.Fukumori, Ichiro ; Wang, Ou ; Llovel, William ; Fenty, Ian ; Forget, Gael ( 2015 )., Progress in Oceanography ( 134 ), 152-172, 10.1016/j.pocean.2015.01.013.Peña-Izquierdo, Jesús ; vanguard Sebille, Erik ; Pelegrí, Josep L. ; Sprintall, Janet ; Mason, Evan ; Llanillo, Pedro J. ; Machín, Francisco ( 2015 )., Journal of Geophysical Research : Oceans, 5 ( 120 ), 3350-3372, 10.1002/2014JC010557.Piecuch, Christopher G ; Fukumori, Ichiro ; Ponte, Rui M ; Wang, Ou ( 2015 )., Journal of Atmospheric and Oceanic Technology, 3 ( 32 ), 603-613, 10.1175/JTECH-D-14-00156.1.Muller-Karger, Frank E. ; Smith, Joseph P. ; Werner, Sandra ; Chen, Robert ; Roffer, Mitchell ; Liu, Yanyun ; Muhling, Barbara ; Lindo-Atichati, David ; Lamkin, John ; Cerdeira-Estrada, Sergio ; Enfield, David B. ( 2015 )., Progress in Oceanography ( 134 ), 54-76, 10.1016/j.pocean.2014.12.007.Koldunov, A.V. ; Koldunov, N.V. ; Volkov, Denis L. ; Belonenko, T.V. ( 2015 )., current Problems in Remote Sensing of the Earth from Space, 6 ( 12 ), 53-66.Zhang, Yanxu ; Jacob, Daniel J. ; Dutkiewicz, Stephanie ; Amos, Helen M. ; Long, Michael S. ; Sunderland, Elsie M. ( 2015 )., Global Biogeochemical Cycles, 6 ( 29 ), 854-864, 10.1002/2015GB005124.Piecuch, C G ( 2015 )., Journal of Geophysical Research-Oceans, 4 ( 120 ), 2449-2459, 10.1002/2014jc010667.Chen, Ru ; Flierl, Glenn R. ( 2015 )., Journal of Physical Oceanography, 8 ( 45 ), 2095-2113, 10.1175/JPO-D-14-0199.1.D’Addezio, Joseph M ; Subrahmanyam, Bulusu ; Nyadjro, Ebenezer S ; Murty, V S N ( 2015 )., Journal of Physical Oceanography, 7 ( 45 ), 1947-1966, 10.1175/JPO-D-14-0210.1.Thomas, Matthew D. ; De Boer, Agatha M. ; Johnson, Helen L. ; Stevens, David P. ( 2014 )., Journal of Physical Oceanography, 10 ( 44 ), 2644-2660, 10.1175/JPO-D-13-0192.1.Gürol, S. ; Weaver, A.T. ; Moore, A.M. ; Piacentini, A. ; Arango, H.G. ; Gratton, S. ( 2014 )., quarterly Journal of the Royal Meteorological Society, 679 ( 140 ), 539-556, 10.1002/qj.2150.Goebel, Nicole L. ; Edwards, Christopher A. ; Follows, Michael J. ; Zehr, Jonathan P. ( 2014 )., Ecology, 1 ( 95 ), 153-163, 10.1890/13-0421.1.Soerensen, Anne L. ; Mason, Robert P. ; Balcom, Prentiss H. ; Jacob, Daniel J. ; Zhang, Yanxu ; Kuss, Joachim ; Sunderland, Elsie M. ( 2014 )., Environmental Science & Technology, 19 ( 48 ), 11312-11319, 10.1021/es503109p.Jones, Daniel C. ; Ito, Takamitsu ; Takano, Yohei ; Hsu, Wei-Ching ( 2014 )., Global Biogeochemical Cycles, 11 ( 28 ), 1163-1178, 10.1002/2014GB004813.Klocker, Andreas ; Abernathey, Ryan ( 2014 )., Journal of Physical Oceanography, 3 ( 44 ), 1030-1046, 10.1175/JPO-D-13-0159.1.Tulloch, Ross ; Ferrari, Raffaele ; Jahn, Oliver ; Klocker, Andreas ; LaCasce, Joseph ; Ledwell, James R. ; Marshall, John ; Messias, Marie-Jose ; Speer, Kevin ; Watson, Andrew ( 2014 )., Journal of Physical Oceanography, 10 ( 44 ), 2593-2616, 10.1175/JPO-D-13-0120.1.LaCasce, J. H. ; Ferrari, R. ; Marshall, J. ; Tulloch, R. ; Balwada, D. ; Speer, K. ( 2014 )., Journal of Physical Oceanography, 2 ( 44 ), 764-780, 10.1175/JPO-D-13-0175.1.Klocker, Andreas ; Marshall, David P. ( 2014 )., Geophysical Research Letters, 10 ( 41 ), 3517-3521, 10.1002/2014GL060001.Piecuch, Christopher G. ; Ponte, Rui M. ( 2014 )., Journal of Physical Oceanography, 6 ( 44 ), 1605-1613, 10.1175/JPO-D-13-0277.1.Xiao, Xiao ; Smith, K. Shafer ; Keating, Shane R. ( 2014 ) .Wright, Corwin J. ; Scott, Robert B. ; Ailliot, Pierre ; Furnival, Darran ( 2014 )., Geophysical Research Letters, 7 ( 41 ), 2434-2440, 10.1002/2013GL059087.Wagman, Benjamin M. ; Jackson, Charles S. ; Yao, Fengchao ; Zedler, Sarah E. ; Hoteit, Ibrahim ( 2014 )., Ocean Modelling ( 79 ), 54-64, 10.1016/j.ocemod.2014.04.003.Ponte, R M ; Piecuch, C G ( 2014 )., Journal of Physical Oceanography, 5 ( 44 ), 1456-1465, 10.1175/jpo-d-13-0223.1.Ward, Ben A ; Dutkiewicz, Stephanie ; Follows, Michael J. ( 2014 )., Journal of Plankton Research, 1 ( 36 ), 31-47, 10.1093/plankt/fbt097.Pemberton, Per ( 2014 ) .Amol, P ; Shankar, D ; Fernando, V ; Mukherjee, A ; Aparna, S G ; Fernandes, R ; Michael, G S ; Khalap, S T ; Satelkar, N P ; Agarvadekar, Y ; Gaonkar, M G ; Tari, A P ; Kankonkar, A ; Vernekar, S P ( 2014 )., Journal of Earth System Science, 5 ( 123 ), 1045-1074, 10.1007/s12040-014-0449-5.Danabasoglu, G ; Curry, R ; Heimbach, P ; Kushnir, Y ; Meinen, C ; Msadek, R ; Patterson, M ; Thompson, L ; Yeager, S ; Zhang, R ; Office, U S CLIVAR ( 2014 ) .Vallina, S.M. ; Ward, B.A. ; Dutkiewicz, Stephanie ; Follows, Michael J. ( 2014 )., Progress in Oceanography ( 120 ), 93-109, 10.1016/j.pocean.2013.08.001.Azaneu, M ; Kerr, R ; Mata, M M ( 2014 )., Ocean Sci., 6 ( 10 ), 923-946, 10.5194/os-10-923-2014.Goes, Marlos ; Wainer, Ilana ; Signorelli, Natalia ( 2014 )., Journal of Geophysical Research : Oceans, 9 ( 119 ), 5654-5675, 10.1002/2014JC009812.Le Bars, D. M. ( 2014 ) .Chen, Ru ; Flierl, Glenn R. ; Wunsch, Carl ( 2014 )., Journal of Physical Oceanography, 9 ( 44 ), 2336-2352, 10.1175/JPO-D-14-0009.1.Prowe, A E F ; Pahlow, M ; Dutkiewicz, Stephanie ; Oschlies, A ( 2014 )., Biogeosciences, 12 ( 11 ), 3397-3407, 10.5194/bg-11-3397-2014.Porter, David F. ; Tinto, Kirsty J. ; Boghosian, Alexandra ; Cochran, James R. ; Bell, Robin E. ; Manizade, Serdar S. ; Sonntag, John G. ( 2014 )., Earth and Planetary Science Letters ( 401 ), 40-46, 10.1016/j.epsl.2014.05.058.Losch, Martin ; Fuchs, Annika ; Lemieux, Jean-François ; Vanselow, Anna ( 2014 )., Journal of Computational Physics ( 257 ), 901-911, 10.1016/j.jcp.2013.09.026.Nieves, V. ; Wang, J. ; Willis, J. K. ( 2014 )., Geophysical Research Letters, 18 ( 41 ), 6452-6458, 10.1002/2014GL061365.Gwyther, D. E. ; Galton-Fenzi, B. K. ; Hunter, J. R. ; Roberts, J. L. ( 2014 )., Ocean Science, 3 ( 10 ), 267-279, 10.5194/os-10-267-2014.Agarwal, Neeraj ; Köhl, Armin ; Mechoso, Carlos Roberto ; Stammer, Detlef ( 2014 )., Journal of Climate, 21 ( 27 ), 8276-8296, 10.1175/JCLI-D-13-00762.1.Buckley, Martha W ; Ponte, Rui M ; Forget, Gaël ; Heimbach, Patrick ( 2014 )., Journal of Climate, 13 ( 27 ), 4996-5018, 10.1175/JCLI-D-13-00316.1.Liu, W Timothy ; Xie, Xiaosu ( 2014 ) .Moore, Robert M ; Kienast, Markus ; Fraser, Michael ; Cullen, John J ; Deutsch, Curtis ; Dutkiewicz, Stephanie ; Follows, Michael J. ; Somes, Christopher J ( 2014 )., Journal of Geophysical Research : Oceans, 7 ( 119 ), 4340-4350, 10.1002/2014JC010017.Holland, Paul R. ; Bruneau, Nicolas ; Enright, Clare ; Losch, Martin ; Kurtz, Nathan T. ; Kwok, Ron ( 2014 )., Journal of Climate, 10 ( 27 ), 3784-3801, 10.1175/JCLI-D-13-00301.1.Losch, Martin ; Strass, Volker ; Cisewski, Boris ; Klaas, Christine ; Bellerby, Richard G J ( 2014 )., Journal of Marine Systems ( 129 ), 437-451, 10.1016/j.jmarsys.2013.09.003.Dushaw, Brian D. ; Menemenlis, Dimitris ( 2014 )., Deep Sea Research Part I : Oceanographic Research Papers ( 86 ), 1-20, 10.1016/j.dsr.2013.12.008.Mukherjee, A ; Shankar, D ; Fernando, V ; Amol, P ; Aparna, S G ; Fernandes, R ; Michael, G S ; Khalap, S T ; Satelkar, N P ; Agarvadekar, Y ; Gaonkar, M G ; Tari, A P ; Kankonkar, A ; Vernekar, S ( 2014 )., Journal of Earth System Science, 6 ( 123 ), 1197-1232, 10.1007/s12040-014-0471-7.Hamilton, Stephen G. ; Castro de la Guardia, Laura ; Derocher, Andrew E. ; Sahanatien, Vicki ; Tremblay, Bruno ; Huard, David ( 2014 )., PLoS ONE, 11 ( 9 ), e113746, 10.1371/journal.pone.0113746.Dail, Holly ; Wunsch, Carl ( 2014 )., Journal of Climate, 2 ( 27 ), 807-823, 10.1175/JCLI-D-13-00211.1.Peña-Molino, B ; Rintoul, S R ; Mazloff, M R ( 2014 )., Journal of Geophysical Research : Oceans, 11 ( 119 ), 8011-8028, 10.1002/2014JC010020.Sánchez-Drewes, Laura Marlene ( 2014 ) .Tett, S F B ; Sherwin, T J ; Shravat, A ; Browne, O ( 2014 )., Journal of Climate, 16 ( 27 ), 6325-6342, 10.1175/jcli-d-12-00095.1.Kenitz, Katarzyna M. ( 2014 ) .Polkova, Iuliia ; Köhl, Armin ; Stammer, Detlef ( 2014 )., Climate Dynamics, 11-12 ( 42 ), 3151-3169, 10.1007/s00382-013-1969-4.Kalmikov, Alexander G ; Heimbach, Patrick ( 2014 )., Siam Journal on Scientific Computing, 5 ( 36 ), S267-S295, 10.1137/130925311.Gao, S ; Qu, T D ; Nie, X W ( 2014 )., Journal of Geophysical Research-Oceans, 12 ( 119 ), 8255-8270, 10.1002/2014jc010336.Death, R ; Wadham, J L ; Monteiro, F ; Le Brocq, A M ; Tranter, M ; Ridgwell, A ; Dutkiewicz, Stephanie ; Raiswell, R ( 2014 )., Biogeosciences, 10 ( 11 ), 2635-2643, 10.5194/bg-11-2635-2014.Williams, Joanne ; Hughes, C. W. ; Tamisiea, M. E. ; Williams, S. D. P. ( 2014 )., Ocean Science, 4 ( 10 ), 701-718, 10.5194/os-10-701-2014.Bates, Michael ; Tulloch, Ross ; Marshall, John ; Ferrari, Raffaele ( 2014 )., Journal of Physical Oceanography, 6 ( 44 ), 1523-1540, 10.1175/JPO-D-13-0130.1.Landschützer, Peter ; Gruber, N. ; Bakker, D. C. E. ; Schuster, U. ( 2014 )., Global Biogeochemical Cycles, 9 ( 28 ), 927-949, 10.1002/2014GB004853.Wang, Jinbo ; Mazloff, Matthew R ; Gille, Sarah T ( 2014 )., Journal of Geophysical Research : Oceans, 7 ( 119 ), 4234-4250, 10.1002/2014JC010049.Peralta-Ferriz, Cecilia ; Morison, James H. ; Wallace, John M. ; Bonin, Jennifer A. ; Zhang, Jinlun ( 2014 )., Journal of Climate, 4 ( 27 ), 1445-1468, 10.1175/JCLI-D-13-00013.1.Zhang, Dongxiao ; McPhaden, Michael J. ; Lee, Tong ( 2014 )., Geophysical Research Letters, 22 ( 41 ), 7933-7941, 10.1002/2014GL061449.Sánchez, L. ; Dayoub, N. ; Čunderlík, R. ; Minarechová, Z. ; Mikula, K. ; Vatrt, V. ; Vojtíšková, M. ; Šíma, Z. ( 2014 ) .Heimbach, P ; Straneo, F ; Sergienko, O ; Hamilton, G ; Office, U S CLIVAR Project ( 2014 ) .Yang, Qinghua ; Liu, Jiping ; Zhang, Zhanhai ; Sui, Cuijuan ; Xing, Jianyong ; Li, Ming ; Li, Chunhua ; Zhao, Jiechen ; Zhang, Lin ( 2014 )., Acta Oceanologica Sinica, 12 ( 33 ), 15-23, 10.1007/s13131-014-0566-7.Kwon, Young Oh ; Frankignoul, Claude ( 2014 )., Journal of Climate, 24 ( 27 ), 9359-9376, 10.1175/JCLI-D-14-00228.1.Miller, Madeline Diane ( 2014 ) .Moholdt, Geir ; Padman, Laurie ; Fricker, Helen Amanda ( 2014 )., Journal of Geophysical Research : earth Surface, 11 ( 119 ), 2361-2380, 10.1002/2014JF003171.Landschützer, Peter ( 2014 ) .Clement Kinney, Jaclyn ; Maslowski, Wieslaw ; Aksenov, Yevgeny ; de Cuevas, Beverly ; Jakacki, Jaromir ; Nguyen, An ; Osinski, Robert ; Steele, Michael ; Woodgate, Rebecca A. ; Zhang, Jinlun ( 2014 )., The Pacific Arctic Region, 167-198, 10.1007/978-94-017-8863-2_7.Dushaw, Brian D. ( 2014 )., Encyclopedia of Remote Sensing, 4-11.Chaudhuri, A H ; Ponte, R M ; Nguyen, A T ( 2014 )., Journal of Climate, 14 ( 27 ), 5411-5421, 10.1175/jcli-d-13-00424.1.Webber, B G M ; Matthews, A J ; Heywood, K J ; Kaiser, J ; Schmidtko, S ( 2014 )., Journal of Geophysical Research-Oceans, 6 ( 119 ), 3714-3731, 10.1002/2013jc009657.Vinogradova, N T ; Ponte, R M ; Fukumori, I ; Wang, O ( 2014 )., Journal of Geophysical Research-Oceans, 8 ( 119 ), 4732-4744, 10.1002/2014jc009906.Blunden, Jessica ; Arndt, Derek S. ( 2014 )., Bulletin of the american Meteorological Society, 7 ( 95 ), S1-S279, 10.1175/2014BAMSStateoftheClimate.1.Blanken, Hauke ( 2014 ) .Dushaw, Brian D. ( 2014 )., The Journal of the Acoustical Society of America, 1 ( 136 ), 122-129, 10.1121/1.4881928.Piecuch, Christopher G ; Ponte, Rui M ( 2014 )., Journal of Climate, 2 ( 27 ), 824-834, 10.1175/JCLI-D-13-00373.1.Mazloff, Matthew R. ; Gille, Sarah T. ; Cornuelle, Bruce ( 2014 )., Geophysical Research Letters, 24 ( 41 ), 8944-8952, 10.1002/2014GL062402.Wunsch, Carl ; Heimbach, Patrick ( 2014 )., Journal of Physical Oceanography, 8 ( 44 ), 2013-2030, 10.1175/JPO-D-13-096.1.Wortham, C ; Wunsch, C ( 2014 )., Journal of Physical Oceanography, 3 ( 44 ), 944-966, 10.1175/jpo-d-13-0113.1.Landschützer, Peter ; Gruber, N. ; Bakker, D.C.E. ; Schuster, U. ( 2014 ) .Olhsson, Elizabeth Halley ( 2014 ) .Yang, Qinghua ; Locean data assimilation in osa, Svetlana N. ; Losch, Martin ; Tian-Kunze, Xiangshan ; Nerger, Lars ; Liu, Jiping ; Kaleschke, Lars ; Zhang, Zhanhai ( 2014 )., Journal of Geophysical Research : Oceans, 10 ( 119 ), 6680-6692, 10.1002/2014JC009963.Dansereau, Véronique ; Heimbach, Patrick ; Losch, Martin ( 2014 )., Journal of Geophysical Research : Oceans, 3 ( 119 ), 1765-1790, 10.1002/2013JC008846.Vondrák, Jan ; Ron, Cyril ( 2014 )., Acta Geodynamica et Geomaterialia, 1-8, 10.13168/AGG.2014.0007.Danabasoglu, Gokhan ; Yeager, Steve G ; Bailey, David ; Behrens, Erik ; Bentsen, Mats ; Bi, Daohua ; Biastoch, Arne ; Böning, Claus ; Bozec, Alexandra ; Canuto, Vittorio M ; Cassou, Christophe ; Chassignet, Eric ; Coward, Andrew C ; Danilov, Sergey ; Diansky, Nikolay ; Drange, Helge ; Farneti, Riccardo ; Fernandez, Elodie ; Fogli, Pier Giuseppe ; Forget, Gael ; Fujii, Yosuke ; Griffies, Stephen M ; Gusev, Anatoly ; Heimbach, Patrick ; Howard, Armando ; Jung, Thomas ; Kelley, Maxwell ; Large, William G ; Leboissetier, Anthony ; Lu, Jianhua ; Madec, Gurvan ; Marsland, Simon J ; Masina, Simona ; Navarra, Antonio ; George Nurser, A J ; Pirani, Anna ; y Mélia, David Salas ; Samuels, Bonita L ; Scheinert, Markus ; Sidorenko, Dmitry ; Treguier, Anne-Marie ; Tsujino, Hiroyuki ; Uotila, Petteri ; Valcke, Sophie ; Voldoire, Aurore ; Wang, Qiang ( 2014 )., Ocean Modelling ( 73 ), 76-107, 10.1016/j.ocemod.2013.10.005.Seroussi, Hélène ; Morlighem, M ; Rignot, E ; Mouginot, J ; Larour, E ; Schodlok, M ; Khazendar, A ( 2014 )., The Cryosphere, 5 ( 8 ), 1699-1710, 10.5194/tc-8-1699-2014.Brzeziński, A. ; Rajner, M. ( 2014 )., Proc Journées 2013 Systèmes de référence spatio-temporels, 189-192.Sciascia, R ; Cenedese, C ; Nicolì, D ; Heimbach, P ; Straneo, F ( 2014 )., Journal of Geophysical Research : Oceans, 10 ( 119 ), 7078-7098, 10.1002/2014JC009953.Belonenko, T V ; Volkov, Denis L. ; Norden, Y E ; Ozhigin, V K ( 2014 )., St. Petersburg University Bulletin. Earth Sciences, 2 ( 7 ), 108-121.Amos, Helen M ; Jacob, Daniel J ; Kocman, David ; Horowitz, Hannah M ; Zhang, Yanxu ; Dutkiewicz, Stephanie ; Horvat, Milena ; Corbitt, Elizabeth S ; Krabbenhoft, David P ; Sunderland, Elsie M ( 2014 )., Environmental Science & Technology, 16 ( 48 ), 9514-9522, 10.1021/es502134t.Childers, Katelin ; Flagg, Charles N ( 2014 )., Marine and Atmospheric Science, 3684409 ( Ph.D. ), 122.Verdy, Ariane ; Mazloff, Matthew R. ; Cornuelle, Bruce D. ; Kim, Sung Yong ( 2014 )., Journal of Physical Oceanography, 1 ( 44 ), 297-318, 10.1175/JPO-D-13-018.1.Liu, Junjie ; Bowman, Kevin W. ; Lee, Meemong ; Henze, Daven K ; Bousserez, Nicolas ; Brix, Holger ; James Collatz, G ; Menemenlis, Dimitris ; Ott, Lesley ; Pawson, Steven ; Jones, Dylan ; Nassar, Ray ( 2014 )., tellus B : Chemical and Physical Meteorology, 1 ( 66 ), 22486, 10.3402/tellusb.v66.22486.Prakash, Amol ( 2014 )., Goa University, 134.Elipot, Shane ; Frajka-Williams, Eleanor ; Hughes, Chris W. ; Willis, Josh K. ( 2014 )., Journal of Physical Oceanography, 2 ( 44 ), 517-537, 10.1175/JPO-D-13-026.1.Vallina, S M ; Follows, Michael J. ; Dutkiewicz, Stephanie ; Montoya, J M ; Cermeno, P ; Loreau, M ( 2014 )., Nature Communications, 1 ( 5 ), 4299, 10.1038/ncomms5299.Lipinski, Doug ; Mohseni, Kamran ( 2014 )., Ocean Dynamics, 1 ( 64 ), 79-88, 10.1007/s10236-013-0674-5.Renner, Angelika H. H. ; Gerland, Sebastian ; Haas, Christian ; Spreen, Gunnar ; Beckers, Justin F. ; Hansen, Edmond ; Nicolaus, Marcel ; Goodwin, Harvey ( 2014 )., Geophysical Research Letters, 14 ( 41 ), 5029-5036, 10.1002/2014GL060369.Burchard, Hans ; Gräwe, Ulf ; Holtermann, Peter ; Klingbeil, Knut ; Umlauf, Ears ( 2014 )., Kuste, 81 ( 81 ), 69-87.Hill, Jenna C. ; Condron, Alan ( 2014 )., Nature Geoscience, 11 ( 7 ), 806-810, 10.1038/ngeo2267.Dotto, T S ; Kerr, R ; Mata, M M ; Azaneu, M ; Wainer, I ; Fahrbach, E ; Rohardt, G ( 2014 )., Ocean Sci., 3 ( 10 ), 523-546, 10.5194/os-10-523-2014.Nastula, Jolanta ; Salstein, David A. ; Gross, Richard ( 2014 )., earth on the edge : science for a sustainable Planet, 467-472, 10.1007/978-3-642-37222-3_62.Goebel, N.L. ; Edwards, C.A. ; Zehr, J.P. ; Follows, M.J. ; Morgan, S.G. ( 2013 )., ecological Modelling ( 264 ), 37-47, 10.1016/j.ecolmodel.2012.11.008.Zhai, Xiaoming ( 2013 )., Journal of Geophysical Research : Oceans, 12 ( 118 ), 6561-6577, 10.1002/2013JC009086.Jiang, Weiping ; Li, Zhao ; van Dam, Tonie ; Ding, Wenwu ( 2013 )., Journal of Geodesy, 7 ( 87 ), 687-703, 10.1007/s00190-013-0642-3.Johnson, Gregory C. ; Chambers, Don P. ( 2013 )., Journal of Geophysical Research : Oceans, 9 ( 118 ), 4228-4240, 10.1002/jgrc.20307.Palter, Jaime B. ; Marinov, Irina ; Sarmiento, Jorge L. ; Gruber, Nicolas ( 2013 ) .Maze, Guillaume ; Deshayes, Julie ; Marshall, John ; Tréguier, Anne-Marie ; Chronis, Alexandre ; Vollmer, Lukas ( 2013 )., Deep Sea Research Part II : topical Studies in Oceanography ( 91 ), 128-138, 10.1016/j.dsr2.2013.02.026.Piecuch, Christopher G. ( 2013 )., Journal of Geophysical Research : Oceans, 10 ( 118 ), 5117-5128, 10.1002/jgrc.20374.Vinogradova, Nadya T ; Ponte, Rui M ( 2013 )., Journal of Geophysical Research : Oceans, 6 ( 118 ), 3190-3201, 10.1002/jgrc.20200.Speer, Kevin ; Forget, Gael ( 2013 )., International Geophysics ( 103 ), 211-226, 10.1016/B978-0-12-391851-2.00009-X.Xu, Yun ( 2013 ) .Ward, Ben A ; Dutkiewicz, Stephanie ; Moore, C Mark ; Follows, Michael J. ( 2013 )., Limnology and Oceanography, 6 ( 58 ), 2059-2075, 10.4319/lo.2013.58.6.2059.Straneo, Fiammetta ; Heimbach, Patrick ( 2013 )., Nature, 7478 ( 504 ), 36-43, 10.1038/nature12854.Chaudhuri, A H ; Ponte, R M ; Forget, G ; Heimbach, P ( 2013 )., Journal of Climate, 1 ( 26 ), 153-170, 10.1175/jcli-d-12-00090.1.Hoteit, Ibrahim ; Hoar, Tim ; Gopalakrishnan, Ganesh ; Collins, Nancy ; Anderson, Jeffrey ; Cornuelle, Bruce ; Köhl, Armin ; Heimbach, Patrick ( 2013 )., Dynamics of Atmospheres and Oceans ( 63 ), 1-23, 10.1016/j.dynatmoce.2013.03.002.Nie, Xunwei ; Gao, Shan ; Wang, Fan ( 2013 )., Marine Sciences, 9 ( 37 ), 1-9.Le Bars, D. ; Dijkstra, H. A. ; De Ruijter, W. P. M. ( 2013 )., Ocean Science Discussions, 1 ( 10 ), 353-391, 10.5194/osd-10-353-2013.Gopalakrishnan, Ganesh ; Cornuelle, Bruce D. ; Hoteit, Ibrahim ; Rudnick, Daniel L. ; Owens, W. Brechner ( 2013 )., Journal of Geophysical Research : Oceans, 10.1002/jgrc.20239.Dushaw, Brian D. ; Worcester, P F ; Dzieciuch, M A ; Menemenlis, Dimitris ( 2013 )., Journal of Geophysical Research : Oceans, 9 ( 118 ), 4346-4362, 10.1002/jgrc.20325.Kalmikov, Alexander G ( 2013 ) .Blunden, Jessica ; Arndt, Derek S. ( 2013 )., Bulletin of the american english Meteorological Society, 8 ( 94 ), S1-S258, 10.1175/2013BAMSStateoftheClimate.1.van Sebille, Erik ; Spence, Paul ; Mazloff, Matthew R ; England, Matthew H ; Rintoul, Stephen R ; Saenko, Oleg A ( 2013 )., Geophysical Research Letters, 10 ( 40 ), 2177-2182, 10.1002/grl.50483.Li, Qun ; Zhang, Zhanhai ; Wu, Huiding ( 2013 )., Acta Oceanologica Sinica, 3 ( 32 ), 54-62, 10.1007/s13131-013-0289-1.Yan, Youfang ; Chassignet, Eric P. ; Qi, Yiquan ; Dewar, William K. ( 2013 )., Journal of Physical Oceanography, 12 ( 43 ), 2733-2751, 10.1175/JPO-D-13-03.1.Li, Qun ; WU, Huiding ; Zhang, Lu ( 2013 )., International Journal of Offshore and Polar Engineering, 1 ( 23 ), 15-21.Landerer, Felix W. ; Volkov, Denis L. ( 2013 )., Geophysical Research Letters, 3 ( 40 ), 553-557, 10.1002/grl.50140.Taylor, Marc H. ; Losch, Martin ; Bracher, Astrid ( 2013 )., Journal of Geophysical Research : Oceans, 1 ( 118 ), 63-75, 10.1029/2012JC008418.Khatiwala, S ; Tanhua, T ; Fletcher, S M ; Gerber, M ; Doney, S C ; Graven, H D ; Gruber, N ; McKinley, Galen A. ; Murata, A ; Rios, A F ; Sabine, C L ( 2013 )., Biogeosciences, 4 ( 10 ), 2169-2191, 10.5194/bg-10-2169-2013.Peralta Ferriz, Ana Cecilia ( 2013 ) .Schiller, Andreas ; Lee, Tong ; Masuda, Shuhei ( 2013 )., Ocean Circulation and Climate, 581-608, 10.1016/B978-0-12-391851-2.00022-2.Msadek, Rym ; Johns, William E. ; Yeager, Stephen G. ; Danabasoglu, Gokhan ; Delworth, Thomas L. ; Rosati, Anthony ( 2013 )., Journal of Climate, 12 ( 26 ), 4335-4356, 10.1175/JCLI-D-12-00081.1.Jin, Shuanggen ( 2013 )., geodetic Sciences – Observations, Modeling and Applications, 157-174, 10.5772/51698.Volkov, Denis L. ; Landerer, Felix W ( 2013 )., Journal of Geophysical Research : Oceans, 12 ( 118 ), 6451-6460, 10.1002/2013JC009341.Ma, Hsi-Yen ; Mechoso, C. Roberto ; Xue, Yongkang ; Xiao, Heng ; Neelin, J. David ; Ji, Xuan ( 2013 )., Journal of Climate, 22 ( 26 ), 9006-9025, 10.1175/JCLI-D-12-00819.1.Hwang, Kyeong ( 2013 ) .Fenty, Ian ; Heimbach, Patrick ( 2013 )., Journal of Physical Oceanography, 5 ( 43 ), 863-883, 10.1175/jpo-d-12-064.1.Abernathey, Ryan ; Ferreira, David ; Klocker, Andreas ( 2013 )., Ocean Modelling ( 72 ), 1-16, 10.1016/j.ocemod.2013.07.004.Goldberg, D N ; Heimbach, P ( 2013 )., The Cryosphere, 6 ( 7 ), 1659-1678, 10.5194/tc-7-1659-2013.Xu, Y ; Rignot, E ; Fenty, Ian ; Menemenlis, Dimitris ; Flexas, M M ( 2013 )., Geophysical Research Letters, 17 ( 40 ), 4648-4653, 10.1002/grl.50825.Ponte, Aurelien L. ; Cornuelle, Bruce D. ( 2013 )., Ocean Modelling ( 62 ), 17-26, 10.1016/j.ocemod.2012.11.007.Qu, T D ; Gao, S ; Fine, R A ( 2013 )., Journal of Physical Oceanography, 8 ( 43 ), 1551-1565, 10.1175/jpo-d-12-0180.1.Borstad, C. P. ; Rignot, E. ; Mouginot, J. ; Schodlok, M. P. ( 2013 )., The Cryosphere, 6 ( 7 ), 1931-1947, 10.5194/tc-7-1931-2013.Manizza, M ; Follows, Michael J. ; Dutkiewicz, Stephanie ; Menemenlis, Dimitris ; Hill, C N ; Key, R M ( 2013 )., Global Biogeochemical Cycles, 4 ( 27 ), 1108-1118, 10.1002/2012GB004491.Zhai, Fangguo ; Hu, Dunxin ; Wang, Qingye ( 2013 )., Marine Sciences, 11 ( 37 ), 85-94.Valty, Pierre ; De Viron, Olivier ; Panet, Isabelle ; Van Camp, Michel ; Legrand, Julitte ( 2013 )., Geophysical Journal International, 3 ( 194 ), 1441-1454, 10.1093/gji/ggt173.Wunsch, Carl ( 2013 )., Journal of Atmospheric and Oceanic Technology, 1 ( 30 ), 140-150, 10.1175/JTECH-D-12-00035.1.Peng, P ; Zhu, Y Z ; Zhong, M ; Yan, H M ; Kang, K X ( 2013 )., chinese Journal of Geophysics-Chinese Edition, 3 ( 56 ), 824-833, 10.6038/cjg20130311.Sturges, Wilton ; Bozec, Alexandra ( 2013 )., Journal of Physical Oceanography, 12 ( 43 ), 2673-2681, 10.1175/JPO-D-13-081.1.Gopalakrishnan, Ganesh ; Cornuelle, Bruce D. ; Hoteit, Ibrahim ( 2013 )., Journal of Geophysical Research : Oceans, 7 ( 118 ), 3315-3335, 10.1002/jgrc.20240.Song, Hajoon ; Hoteit, Ibrahim ; Cornuelle, Bruce D. ; Luo, Xiaodong ; Subramanian, Aneesh C. ( 2013 )., Monthly Weather Review, 10.1175/MWR-D-12-00244.1.Clayton, Sophie ( 2013 ) .Huard, David ; Tremblay, Bruno ( 2013 ) .Roquet, Fabien ; Wunsch, Carl ; Forget, Gael ; Heimbach, Patrick ; Guinet, Christophe ; Reverdin, Gilles ; Charrassin, Jean-Benoit ; Bailleul, Frederic ; Costa, Daniel P ; Huckstadt, Luis A ; Goetz, Kimberly T ; Kovacs, Kit M ; Lydersen, Christian ; Biuw, Martin ; Nøst, Ole A ; Bornemann, Horst ; Ploetz, Joachim ; Bester, Marthan N ; McIntyre, Trevor ; Muelbert, Monica C ; Hindell, Mark A ; McMahon, Clive R ; Williams, Guy ; Harcourt, Robert ; Field, Iain C ; Chafik, Leon ; Nicholls, Keith W ; Boehme, Lars ; Fedak, Mike A ( 2013 )., Geophysical Research Letters, 23 ( 40 ), 6176-6180, 10.1002/2013GL058304.Landschützer, Peter ; Gruber, N. ; Bakker, D. C. E. ; Schuster, U. ; Nakaoka, S. ; Payne, M. R. ; Sasse, T. P. ; Zeng, J. ( 2013 )., Biogeosciences, 11 ( 10 ), 7793-7815, 10.5194/bg-10-7793-2013.Cougnon, E. A. ; Galton-Fenzi, B. K. ; Meijers, A. J. S. ; Legrésy, B. ( 2013 )., Journal of Geophysical Research : Oceans, 10 ( 118 ), 5858-5872, 10.1002/2013JC008790.Chen, Ru ( 2013 ) .Clayton, Sophie ; Dutkiewicz, Stephanie ; Jahn, Oliver ; Follows, Michael J. ( 2013 )., Limnology and Oceanography : Fluids and Environments, 1 ( 3 ), 182-197, 10.1215/21573689-2373515.Fenty, Ian ; Heimbach, Patrick ( 2013 )., Journal of Physical Oceanography, 5 ( 43 ), 884-904, 10.1175/jpo-d-12-065.1.Gopalakrishnan, Ganesh ; Cornuelle, Bruce ; Gawarkiewicz, Glen ; McClean, Julie ( 2013 )., Oceanography, 10.5670/oceanog.2013.06.Reynolds, Richard W ; Chelton, Dudley B ; Roberts-Jones, Jonah ; Martin, Matthew J ; Menemenlis, Dimitris ; Merchant, Christopher John ( 2013 )., Journal of Climate, 8 ( 26 ), 2514-2533, 10.1175/JCLI-D-12-00787.1.Sciascia, R ; Straneo, F ; Cenedese, C ; Heimbach, P ( 2013 )., Journal of Geophysical Research : Oceans, 5 ( 118 ), 2492-2506, 10.1002/jgrc.20142.Kwon, Eun Young ; Downes, Stephanie M. ; Sarmiento, Jorge L. ; Farneti, Riccardo ; Deutsch, Curtis ( 2013 )., Journal of Physical Oceanography, 6 ( 43 ), 1096-1113, 10.1175/JPO-D-12-060.1.Cougnon, Eva Audrey ( 2013 ) .Kuai, L. ; Worden, J. ; Kulawik, S. ; Bowman, K. ; Lee, M. ; Biraud, S. C. ; Abshire, J. B. ; Wofsy, S. C. ; Natraj, V. ; Frankenberg, C. ; Wunch, D. ; Connor, B. ; Miller, C. ; Roehl, C. ; Shia, R.-L. ; Yung, Y. ( 2013 )., atmospheric Measurement Techniques, 1 ( 6 ), 63-79, 10.5194/amt-6-63-2013.Xie, Qiang ; Xiao, JinGen ; Wang, DongXiao ; Yu, YongQiang ( 2013 )., chinese Science Bulletin, 32 ( 58 ), 4000-4011, 10.1007/s11434-013-5791-5.Schanze, julian J. ( 2013 ) .Weigelt, Patrick ; Kreft, Holger ( 2013 )., Ecography, 4 ( 36 ), 417-429, 10.1111/j.1600-0587.2012.07669.x.Qu, T D ; Gao, S ; Fukumori, I ( 2013 )., Journal of Geophysical Research-Oceans, 4 ( 118 ), 1982-1994, 10.1002/jgrc.20152.Wunsch, Carl ( 2013 )., Deep Sea Research Part II : topical Studies in Oceanography ( 85 ), 228-243, 10.1016/j.dsr2.2012.07.015.Straneo, Fiammetta ; Heimbach, Patrick ; Sergienko, Olga ; Hamilton, Gordon ; Catania, Ginny ; Griffies, Stephen ; Hallberg, Robert ; Jenkins, Adrian ; Joughin, Ian ; Motyka, Roman ; Pfeffer, W. Tad ; Price, Stephen F. ; Rignot, Eric ; Scambos, Ted ; Truffer, Martin ; Vieli, Andreas ( 2013 )., Bulletin of the american Meteorological Society, 8 ( 94 ), 1131-1144, 10.1175/BAMS-D-12-00100.1.Wortham IV, Cimarron James Lemuel ( 2013 ) .LI, Qun ; ZHANG, Zhanhai ; SUN, Li ; WU, Huiding ( 2013 )., Advances in Polar Science, 4 ( 24 ), 258, 10.3724/SP.J.1085.2013.00258.Morlighem, M ; Rignot, E ; Mouginot, J ; Wu, X ; Seroussi, Hélène ; Larour, E ; Paden, J ( 2013 )., Journal of Glaciology, 218 ( 59 ), 1015-1023, 10.3189/2013JoG12J235.Makowski, Jessica ( 2013 ) .Morlighem, M ; Seroussi, Hélène ; Larour, E ; Rignot, E ( 2013 )., Journal of Geophysical Research : earth Surface, 3 ( 118 ), 1746-1753, 10.1002/jgrf.20125.Seo, H ; Xie, S P ( 2013 )., Meteorology and Atmospheric Physics, 1-2 ( 122 ), 19-32, 10.1007/s00703-013-0275-3.Chen, W ; Ray, J ; Shen, W B ; Huang, C L ( 2013 )., Journal of Geophysical Research-Solid Earth, 9 ( 118 ), 4995-5007, 10.1002/jgrb.50313.Wunsch, Carl ; Schmitt, Raymond W ; Baker, D James ( 2013 )., Proceedings of the National Academy of Sciences, 12 ( 110 ), 4435-4436, 10.1073/pnas.1302536110.Fukumori, Ichiro ; Wang, Ou ( 2013 )., Geophysical Research Letters, 3 ( 40 ), 563-567, 10.1002/grl.50164.Ma, Hsi-Yen ; Xiao, Heng ; Mechoso, C. Roberto ; Xue, Yongkang ( 2013 )., Journal of Climate, 5 ( 26 ), 1818-1837, 10.1175/JCLI-D-12-00142.1.Gierach, Michelle M. ; Vazquez-Cuervo, Jorge ; Lee, Tong ; Tsontos, Vardis M. ( 2013 )., Geophysical Research Letters, 19 ( 40 ), 5188-5193, 10.1002/grl.50995.Zhai, Xiaoming ; Wunsch, Carl ( 2013 )., Journal of Climate, 11 ( 26 ), 3892-3903, 10.1175/JCLI-D-12-00472.1.Meyrath, T. ; avant-garde Dam, T. ; Weigelt, M. ; Cheng, M. ( 2013 )., Geophysical Journal International, 1 ( 195 ), 249-259, 10.1093/gji/ggt263.Volkov, Denis L. ; Landerer, Felix W ; Kirillov, Sergey A ( 2013 )., Continental Shelf Research ( 66 ), 92-104, 10.1016/j.csr.2013.07.007.Condron, Alan ; Renfrew, Ian A ( 2013 )., Nature Geosci, 1 ( 6 ), 34-37, 10.1038/ngeo1661.Khazendar, A ; Schodlok, M P ; Fenty, Ian ; Ligtenberg, S R M ; Rignot, E ; van den Broeke, M R ( 2013 )., Nat Commun ( 4 ), 10.1038/ncomms3857.Schanze, Julian J. ; Schmitt, Raymond W. ( 2013 )., Journal of Physical Oceanography, 4 ( 43 ), 698-705, 10.1175/JPO-D-12-0119.1.Cerovečki, Ivana ; Talley, Lynne D ; Mazloff, Matthew R ; Maze, Guillaume ( 2013 )., Journal of Physical Oceanography, 7 ( 43 ), 1485-1511, 10.1175/JPO-D-12-0121.1.Subramanian, A. C. ; Miller, A. J. ; Cornuelle, B. D. ; Di Lorenzo, E. ; Weller, R. A. ; Straneo, F. ( 2013 )., atmospheric Chemistry and Physics, 6 ( 13 ), 3329-3344, 10.5194/acp-13-3329-2013.Piecuch, Christopher G ; Ponte, Rui M ( 2013 )., Journal of Physical Oceanography, 3 ( 43 ), 533-547, 10.1175/JPO-D-12-093.1.Mazloff, Matthew R ; Ferrari, Raffaele ; Schneider, Tapio ( 2013 )., Journal of Physical Oceanography, 6 ( 43 ), 1193-1208, 10.1175/JPO-D-12-069.1.Wunsch, Carl ; Heimbach, Patrick ( 2013 )., Journal of Climate, 18 ( 26 ), 7167-7186, 10.1175/JCLI-D-12-00478.1.Szymczak, Andrzej ; Sipeki, Levente ( 2013 )., IEEE Transactions on Visualization and Computer Graphics, 12 ( 19 ), 2763-2772, 10.1109/TVCG.2013.229.Baringer, M O ; Johns, W E ; McCarthy, G D ; Willis, J ; Garzoli, S ; Lankhorst, M ; Meinen, C S ; Send, U ; Hobbs, W R ; Cunningham, S A ; Rayner, D ; Smeed, D A ; Kanzow, T ; Heimbach, P ; Frajka-Williams, E ; Macdonald, A ; Dong, S ; Marotzke, J ( 2013 )., State of the Climate in 2012, 8 ( 94 ), S65 — S68.Tenzer, Robert ; Dayoub, Nadim ; Abdalla, Ahmed ( 2013 )., Applied Geomatics, 2 ( 5 ), 133-145, 10.1007/s12518-013-0106-8.Wunsch, Carl ; Heimbach, Patrick ( 2013 ) .Freiwald, Grit ( 2012 )., Universität Bremen, 139.Dail, Holly Janine ( 2012 )., MIT Libraries.Luo, Hao ; Bracco, Annalisa ; Yashayaev, Igor ; Di Lorenzo, Emanuele ( 2012 )., Journal of Geophysical Research : Oceans, C10 ( 117 ), 10.1029/2012JC007988.Wu, Xiaoping ; Ray, Jim ; vanguard Dam, Tonie ( 2012 )., Journal of Geodynamics ( 58 ), 44-61, 10.1016/j.jog.2012.01.007.Liu, Hailong ; Zhang, Minghua ; Lin, Wuyin ( 2012 )., Journal of Climate ( 25 ), 140-155, 10.1175/2011JCLI4001.1.Aiken, Christopher M. ( 2012 )., Dynamics of Atmospheres and Oceans ( 58 ), 1-19, 10.1016/j.dynatmoce.2012.07.001.Webber, Benjamin G.M. ; Stevens, David P. ; Matthews, Adrian J. ; Heywood, Karen J. ( 2012 )., Journal of Climate, 8 ( 25 ), 2824-2842, 10.1175/JCLI-D-11-00268.1.Moore, Andrew M. ; Arango, Hernan G. ; Broquet, Gregoire ( 2012 )., Monthly Weather Review, 10 ( 140 ), 3183-3203, 10.1175/MWR-D-11-00141.1.Emerson, Steven ; Ito, Taka ; Hamme, Roberta C. ( 2012 )., Geophysical Research Letters, 18 ( 39 ), 10.1029/2012GL053054.Webber, Benjamin G. M. ; Matthews, Adrian J. ; Heywood, Karen J. ; Stevens, David P. ( 2012 )., quarterly Journal of the Royal Meteorological Society, 663 ( 138 ), 514-527, 10.1002/qj.936.Pavlis, Nikolaos K. ; Holmes, Simon A. ; Kenyon, Steve C. ; Factor, John K. ( 2012 )., Journal of Geophysical Research : firm earth, B4 ( 117 ), 10.1029/2011JB008916.Hayakawa, Hideaki ; Shibuya, Kazuo ; Aoyama, Yuichi ; Nogi, Yoshifumi ; Doi, Koichiro ( 2012 )., Deep Sea Research Part I : Oceanographic Research Papers ( 60 ), 22-31, 10.1016/j.dsr.2011.09.005.Chambers, D. P. ; Bonin, J. A. ( 2012 )., Ocean Science, 5 ( 8 ), 859-868, 10.5194/os-8-859-2012.Johnson, Mark ; Proshutinsky, Andrey ; Aksenov, Yevgeny ; Nguyen, An T. ; Lindsay, Ron ; Haas, Christian ; Zhang, Jinlun ; Diansky, Nikolay ; Kwok, Ron ; Maslowski, Wieslaw ; Häkkinen, Sirpa ; Ashik, Igor ; de Cuevas, Beverly ( 2012 )., Journal of Geophysical Research : Oceans, C8 ( 117 ), n/a-n/a, 10.1029/2011JC007257.Feng, W ; Zhong, M ; Xu, H Z ( 2012 )., Science China-Earth Sciences, 10 ( 55 ), 1696-1701, 10.1007/s11430-012-4394-3.Volkov, Denis L. ; Zlotnicki, Victor ( 2012 )., Ocean Dynamics, 6 ( 62 ), 893-905, 10.1007/s10236-012-0541-9.Göttl, F. ; Schmidt, M. ; Heinkelmann, R. ; Savcenko, R. ; Bouman, J. ( 2012 )., Journal of Geophysical Research : Oceans, C10 ( 117 ), 10.1029/2012JC007915.Zhang, Xuebin ; Cornuelle, Bruce ; Roemmich, Dean ( 2012 )., Journal of Physical Oceanography, 11 ( 42 ), 2056-2072, 10.1175/JPO-D-11-0229.1.Mazloff, Matthew R ( 2012 )., Journal of Climate, 7 ( 25 ), 2279-2290, 10.1175/JCLI-D-11-00030.1.Rignot, E ; Fenty, Ian ; Menemenlis, Dimitris ; Xu, Y ( 2012 )., Annals of Glaciology, 60 ( 53 ), 257-266, 10.3189/2012AoG60A136.Mata, Aitor ; Muñoz, M. Dolores ; Corchado, Emilio ; Corchado, Juan M. ( 2012 )., Journal of Mathematical Imaging and Vision, 2-3 ( 42 ), 212-224, 10.1007/s10851-011-0315-x.Volkov, Denis L. ; Pujol, M Isabelle ( 2012 )., Journal of Geophysical Research : Oceans, C3 ( 117 ), 10.1029/2011JC007557.Griesel, A ; Mazloff, M R ; Gille, S T ( 2012 )., J. Geophys. Res., C1 ( 117 ), 2156-2202, 10.1029/2011JC007573.Borstad, C P ; Khazendar, A ; Larour, E ; Morlighem, M ; Rignot, E ; Schodlok, M P ; Seroussi, Hélène ( 2012 )., Geophysical Research Letters, 18 ( 39 ), 10.1029/2012GL053317.Jahn, A. ; Aksenov, Y. ; de Cuevas, B. A. ; de Steur, L. ; Häkkinen, S. ; Hansen, E. ; Herbaut, C. ; Houssais, M.-N. ; Karcher, M. ; Kauker, F. ; Lique, C. ; Nguyen, A. ; Pemberton, P. ; Worthen, D. ; Zhang, J. ( 2012 )., Journal of Geophysical Research : Oceans, C8 ( 117 ), 10.1029/2012JC007907.Heimbach, P ; Wunsch, C ( 2012 )., Oberwolfach Reports ( 9 ), 3451-3454, 10.4171/OWR/2012/58.Yang, Duo ; Saenko, Oleg A. ( 2012 )., Journal of Climate, 23 ( 25 ), 8148-8163, 10.1175/JCLI-D-11-00715.1.Schodlok, Michael P ; Menemenlis, Dimitris ; Rignot, Eric ; Studinger, Michael ( 2012 )., Annals of Glaciology, 60 ( 53 ), 156-162, 10.3189/2012AoG60A073.Freiwald, Grit ( 2012 ) .Ponte, Rui M ( 2012 )., Geophysical Research Letters, 4 ( 39 ), 10.1029/2011GL050681.Passos, Elisa Nóbrega ; Sancho, Lívia Maria Barbosa ; Decco, Hatsue Takanaka de ; Assad, Luiz Paulo ; Landau, Luiz ( 2012 )., Congresso Brasileiro de Oceanografia – CBOʹ2012, 2407-2413.Hobbs, Will R. ; Willis, Joshua K. ( 2012 )., Journal of Geophysical Research : Oceans, C1 ( 117 ), 10.1029/2011JC007039.Galton-Fenzi, B. K. ; Hunter, J. R. ; Coleman, R. ; Marsland, S. J. ; Warner, R. C. ( 2012 )., Journal of Geophysical Research : Oceans, C9 ( 117 ), n/a-n/a, 10.1029/2012JC008214.Hill, C ; Ferreira, D ; Campin, Jean-Michel ; Marshall, J ; Abernathey, R ; Barrier, N ( 2012 )., Ocean Modelling ( 45-46 ), 14-26, 10.1016/j.ocemod.2011.12.001.Funke, Simon W. ( 2012 ) .Soto-Navarro, F Javier ; Criado-Aldeanueva, Francisco ( 2012 )., The Scientific World Journal ( 2012 ), 8, 10.1100/2012/365698.Nastula, J ; Gross, R ; Salstein, D A ( 2012 )., Journal of Geodynamics ( 62 ), 16-23, 10.1016/j.jog.2012.01.002.Dutkiewicz, Stephanie ( 2012 )., Microbe Magazine, 7 ( 7 ), 314-319, 10.1128/microbe.7.314.1.Boehm, S. ; Nilsson, T. ; Schindelegger, M. ; Schuh, H. ( 2012 )., Proceedings of the Journées 2011 “ Systèmes de référence spatio-temporels ” ( JSR2011 ) : earth rotation, citation systems and celestial mechanics : Synergies of geodesy and astronomy, 101-106.Ray, Richard D. ; Egbert, Gary D. ( 2012 )., Geophysical Journal International, 1 ( 189 ), 400-413, 10.1111/j.1365-246X.2012.05351.x.Prowe, A E Friederike ; Pahlow, Markus ; Dutkiewicz, Stephanie ; Follows, Michael J. ; Oschlies, Andreas ( 2012 )., Progress in Oceanography, 1 ( 101 ), 1-13, 10.1016/j.pocean.2011.11.016.Sanchez-Reales, J M ; Vigo, M I ; Jin, S ; Chao, B F ( 2012 )., Marine Geodesy ( 35 ), 175-189, 10.1080/01490419.2012.718696.Dushaw, Brian D. ( 2012 )., Proceedings of the thirty-fifth scandinavian symposium on Physical Acoustics, Geilo 29 January – 1 February, April.Hughes, Chris W. ; Tamisiea, Mark E. ; Bingham, Rory J. ; Williams, Joanne ( 2012 )., Geophysical Research Letters, 17 ( 39 ), 6, 10.1029/2012GL052935.Yan, Haoming ; Chao, Benjamin F. ( 2012 )., Journal of Geophysical Research : solid worldly concern, B2 ( 117 ), 10.1029/2011JB008788.Piecuch, Christopher G ; Ponte, Rui M ( 2012 )., Journal of Climate, 1 ( 25 ), 350-362, 10.1175/JCLI-D-11-00123.1.Brzeziński, Aleksander ; Dobslaw, Henryk ; Dill, Robert ; Thomas, Maik ( 2012 ) .Woodworth, P.L. ; Hughes, C.W. ; Bingham, R.J. ; Gruber, T. ( 2012 )., Journal of Geodetic Science, 4 ( 2 ), 10.2478/v10156-012-0004-8.Piecuch, Christopher G ; Ponte, Rui M ( 2012 )., Geophysical Research Letters, 5 ( 39 ), 10.1029/2012GL051130.Tank, Suzanne E ; Manizza, Manfredi ; Holmes, Robert Max ; McClelland, James W ; Peterson, Bruce J ( 2012 )., Estuaries and Coasts, 2 ( 35 ), 401-415, 10.1007/s12237-011-9417-3.Dayoub, N. ; Edwards, S. J. ; Moore, P. ( 2012 )., Journal of Geodesy, 9 ( 86 ), 681-694, 10.1007/s00190-012-0547-6.Fenoglio-Marc, L. ; Rietbroek, R. ; Grayek, S. ; Becker, M. ; Kusche, J. ; Stanev, E. ( 2012 )., Journal of Geodynamics ( 59-60 ), 168-182, 10.1016/j.jog.2012.04.001.Todd, Robert E. ; Rudnick, Daniel L. ; Mazloff, Matthew R. ; Cornuelle, Bruce D. ; Davis, Russ E. ( 2012 )., Journal of Geophysical Research : Oceans, C2 ( 117 ), n/a-n/a, 10.1029/2011JC007589.Chen, J.L. ; Wilson, C.R. ; Zhou, Y.H. ( 2012 )., Journal of Geodynamics ( 62 ), 8-15, 10.1016/j.jog.2011.12.002.Miller, M D ; Adkins, J F ; Menemenlis, Dimitris ; Schodlok, M P ( 2012 )., Paleoceanography, 3 ( 27 ), 10.1029/2012PA002297.Xu, Y ; Rignot, E ; Menemenlis, Dimitris ; Koppes, M ( 2012 )., Annals of Glaciology, 60 ( 53 ), 229-234, 10.3189/2012AoG60A139.Bolkas, D. ; Fotopoulos, G. ; Sideris, M. G. ( 2012 )., Journal of Geodetic Science, 4 ( 2 ), 10.2478/v10156-011-0050-7.Dutkiewicz, Stephanie ; Ward, B A ; Monteiro, F ; Follows, Michael J. ( 2012 )., Global Biogeochemical Cycles, 1 ( 26 ), 10.1029/2011GB004039.Sánchez, L. ( 2012 )., Journal of Geodetic Science, 4 ( 2 ), 10.2478/v10156-012-0002-x.Al-janabi, Rusul ( 2012 ) .Sreenivas, P. ; Chowdary, J. S. ; Gnanaseelan, C. ( 2012 )., Geophysical Research Letters, 22 ( 39 ), n/a-n/a, 10.1029/2012GL053974.Nguyen, A T ; Kwok, R ; Menemenlis, Dimitris ( 2012 )., Journal of Physical Oceanography, 5 ( 42 ), 802-823, 10.1175/jpo-d-11-040.1.van Dam, T ; Collilieux, X ; Wuite, J ; Altamimi, Z ; Ray, J ( 2012 )., Journal of Geodesy, 11 ( 86 ), 1043-1057, 10.1007/s00190-012-0564-5.Graven, H D ; Gruber, N ; Key, R ; Khatiwala, S ; Giraud, X ( 2012 )., Journal of Geophysical Research-Oceans ( 117 ), 10.1029/2012jc008074.Calafat, F. M. ; Chambers, D. P. ; Tsimplis, M. N. ( 2012 )., Journal of Geophysical Research : Oceans, 9 ( 117 ), 1-14, 10.1029/2012JC008285.Ward, B A ; Dutkiewicz, Stephanie ; Jahn, O ; Follows, Michael J. ( 2012 )., Limnology and Oceanography, 6 ( 57 ), 1877-1891, 10.4319/lo.2012.57.6.1877.Fu, Lee-Lueng ; Alsdorf, Douglas ; Morrow, Rosemary ; Rodriguez, Ernesto ; Mognard, Nelly ( 2012 ) .Ma, J. ; Liao, I. ; Kwan-Liu Ma ; Frazier, J. ( 2012 )., IEEE Transactions on Visualization and Computer Graphics, 12 ( 18 ), 2799-2808, 10.1109/TVCG.2012.244.Marcus, S L ; Dickey, J O ; Fukumori, I ; de Viron, O ( 2012 )., Geophysical Research Letters ( 39 ), 10.1029/2011gl050671.Dansereau, Véronique ( 2012 ) .Scheller, Marita ( 2012 ) .Seoane, L. ; Biancale, R. ; Gambis, D. ( 2012 )., Journal of Geodynamics ( 62 ), 49-55, 10.1016/j.jog.2012.02.008.Granskog, Mats A ; Stedmon, Colin A ; Dodd, Paul A ; Amon, Rainer M W ; Pavlov, Alexey K ; de Steur, Laura ; Hansen, Edmond ( 2012 )., Journal of Geophysical Research : Oceans, C12 ( 117 ), 10.1029/2012JC008075.Gierach, Michelle M. ; Lee, Tong ; Turk, Daniela ; McPhaden, Michael J. ( 2012 )., Geophysical Research Letters, 10 ( 39 ), n/a-n/a, 10.1029/2012GL051103.Zanna, L ; Heimbach, P ; Moore, A M ; Tziperman, E ( 2012 )., quarterly Journal of the Royal Meteorological Society, 663 ( 138 ), 500-513, 10.1002/qj.937.Heimbach, P ; Losch, Martin ( 2012 )., Annals of Glaciology, 60 ( 53 ), 59-69, 10.3189/2012/AoG60A025.Kolaczek, B. ; Pasnicka, M. ; Nastula, J. ( 2012 )., Proc. Journées 2011 “ Systèmes de référence spatio-temporels ”, 164-165.Seitz, F. ; Kirschner, S. ; Neubersch, D. ( 2012 )., Journal of Geophysical Research : solid earth, B9 ( 117 ), 10.1029/2012JB009296.Condron, Alan ; Winsor, Peter ( 2012 )., Proceedings of the National Academy of Sciences, 49 ( 109 ), 19928-19933, 10.1073/pnas.1207381109.Chen, J. L. ; Wilson, C. R. ( 2012 )., VII Hotine-Marussi Symposium on Mathematical Geodesy. International Association of Geodesy Symposia ( 137 ), 293-300, 10.1007/978-3-642-22078-4.Yan, Y F ; Xu, D Z ; Qi, Y Q ; Gan, Z J ( 2012 )., Atmosphere-Ocean ( 50 ), 92-102, 10.1080/07055900.2012.715078.Moore, Andrew M. ; Arango, Hernan G. ; Broquet, Gregoire ; Edwards, Chris ; Veneziani, Milena ; Powell, Brian ; Foley, Dave ; Doyle, James D. ; Costa, Dan ; Robinson, Patrick ( 2011 )., Progress in Oceanography, 1 ( 91 ), 74-94, 10.1016/j.pocean.2011.05.003.Inazu, Daisuke ; Hino, Ryota ( 2011 )., Earth, Planets and Space, 11 ( 63 ), 1133-1149, 10.5047/eps.2011.07.014.Brown, Jaclyn N. ; Fedorov, Alexey V. ; Guilyardi, Eric ( 2011 )., Climate Dynamics, 11-12 ( 36 ), 2147-2158, 10.1007/s00382-010-0926-8.Moore, Andrew M. ; Arango, Hernan G. ; Broquet, Gregoire ; Edwards, Chris ; Veneziani, Milena ; Powell, Brian ; Foley, Dave ; Doyle, James D. ; Costa, Dan ; Robinson, Patrick ( 2011 )., Progress in Oceanography, 1 ( 91 ), 50-73, 10.1016/j.pocean.2011.05.003.Moore, Andrew M. ; Arango, Hernan G. ; Broquet, Gregoire ; Edwards, Chris ; Veneziani, Milena ; Powell, Brian ; Foley, Dave ; Doyle, James D. ; Costa, Dan ; Robinson, Patrick ( 2011 )., Progress in Oceanography, 1 ( 91 ), 74-94, 10.1016/j.pocean.2011.05.005.Wunsch, Carl ( 2011 )., Journal of Marine Research, 2 ( 69 ), 417-434, 10.1357/002224011798765303.Maze, Guillaume ; Marshall, John ( 2011 )., Journal of Physical Oceanography, 10 ( 41 ), 1986-1999, 10.1175/2011JPO4576.1.Ron, C. ; Vondrák, Jan ; Štefka, V. ( 2011 )., Proc. Journées 2010 Systèmes de référence spatiotemporels, 221-222, 10.1029/2006JC004035.Gross.Hemery, LG ; Galton-Fenzi, B ; Améziane, N ; Riddle, MJ ; Rintoul, SR ; Beaman, RJ ; Post, AL ; Eléaume, M ( 2011 )., Marine Ecology Progress Series ( 441 ), 105-116, 10.3354/meps09330.Cerovečki, Ivana ; Talley, Lynne D. ; Mazloff, Matthew R ( 2011 )., Journal of Climate, 24 ( 24 ), 6283-6306, 10.1175/2011JCLI3858.1.Williams, Richard G. ; Follows, Michael J. ( 2011 ) .Halkides, D ; Lee, T ; Kida, S ( 2011 )., Ocean Dynamics, 4 ( 61 ), 481-495, 10.1007/s10236-010-0374-3.Qu, T D ; Gao, S ; Fukumori, I ( 2011 )., Geophysical Research Letters ( 38 ), 10.1029/2011gl046757.Gennerich, Hans-Hermann ; Villinger, Heinrich ( 2011 )., Geochemistry, Geophysics, Geosystems, 7 ( 12 ), 10.1029/2010GC003441.Volkov, Denis L. ; Fu, Lee-Lueng ( 2011 )., Journal of Geophysical Research : Oceans, C11 ( 116 ), 10.1029/2011JC007271.Forget, Gaël ; Maze, Guillaume ; Buckley, Martha ; Marshall, John ( 2011 )., Journal of Physical Oceanography, 2 ( 41 ), 269-286, 10.1175/2010JPO4257.1.Mata, Aitor ; Corchado, Juan M. ; Tapia, Dante I. ( 2011 )., Applied Soft Computing, 3 ( 11 ), 3147-3159, 10.1016/j.asoc.2010.12.017.Todd, Robert E. ; Rudnick, Daniel L. ; Mazloff, Matthew R. ; Davis, Russ E. ; Cornuelle, Bruce D. ( 2011 )., Journal of Geophysical Research, C2 ( 116 ), C02026, 10.1029/2010JC006536.Zhang, Xuebin ; Cornuelle, Bruce ; Roemmich, Dean ( 2011 )., Journal of Climate, 16 ( 24 ), 4480-4493, 10.1175/2011JCLI3917.1.Wang, Zeliang ; Holloway, Greg ; Hannah, Charles ( 2011 )., Journal of Geophysical Research, C8 ( 116 ), C00D09, 10.1029/2010JC006871.Lan, Kuo Wei ; Lee, Ming An ; Lu, Hsueh Jung ; Shieh, Wei Juan ; Lin, Wei Kuan ; Kao, Szu Chia ( 2011 )., ICES Journal of Marine Science, 6 ( 68 ), 1063-1071, 10.1093/icesjms/fsr045.Follows, Michael J. ; Dutkiewicz, Stephanie ( 2011 )., Annual Review of Marine Science, 1 ( 3 ), 427-451, 10.1146/annurev-marine-120709-142848.Rampal, P ; Weiss, J ; Dubois, C ; Campin, Jean-Michel ( 2011 )., Journal of Geophysical Research : Oceans, C8 ( 116 ), 10.1029/2011JC007110.Drozdowski, A. ; Nudds, S. ; Hannah, C. G. ; Niu, H. ; Peterson, I. ; Perrie, W. ( 2011 ) .Yang, Qinghua ; Liu, Yuping ; Zhang, Zhanhai ; Wu, Huizhen ; Li, Qun ; Xing, Jianyon ( 2011 )., taiwanese Journal of Atmospheric Sciences, 3 ( 35 ), 473-482, 10.3878/j.issn.1006-9895.2011.03.08.Campin, Jean-Michel ; Hill, Chris ; Jones, Helen ; Marshall, John ( 2011 )., Ocean Modelling, 1-2 ( 36 ), 90-101, 10.1016/j.ocemod.2010.10.003.Manizza, M ; Follows, Michael J. ; Dutkiewicz, Stephanie ; Menemenlis, Dimitris ; McClelland, J W ; Hill, C N ; Peterson, B J ; Key, R M ( 2011 )., Journal of Geophysical Research : Oceans, C12 ( 116 ), 10.1029/2011JC006998.Tulloch, Ross ; Hill, Chris ; Jahn, Oliver ( 2011 )., Monitoring and Modeling the Deepwater Horizon Oil Spill : A record-breaking enterprise, 245-255, 10.1029/2011GM001125.Downes, S M ; Gnanadesikan, A ; Griffies, S M ; Sarmiento, J L ( 2011 )., Journal of Physical Oceanography, 9 ( 41 ), 1756-1771, 10.1175/2011jpo4586.1.Davis, Xujing Jia ; Rothstein, Lewis M ; Dewar, William K ; Menemenlis, Dimitris ( 2011 )., Journal of Climate, 11 ( 24 ), 2648-2665, 10.1175/2010JCLI3435.1.LI, Qun ; WU, Huiding ; Zhang, Lu ( 2011 )., Acta Oceanologica Sinica, 5 ( 33 ), 32-38.DeVries, Tim ; Primeau, François ( 2011 )., Journal of Physical Oceanography, 12 ( 41 ), 2381-2401, 10.1175/JPO-D-10-05011.1.Ivchenko, V. O. ; Sidorenko, D. ; Danilov, S. ; Losch, M. ; Schröter, J. ( 2011 )., Geophysical Research Letters, 11 ( 38 ), 10.1029/2011GL047387.Ubelmann, Clement ; Fu, Lee-Lueng ( 2011 )., Journal of Geophysical Research : Oceans, C12 ( 116 ), 10.1029/2011JC007204.Aretxabaleta, A L ; Smith, K W ( 2011 )., computational Geosciences, 4 ( 15 ), 627-636, 10.1007/s10596-011-9229-3.Dorman, Jeffrey G. ( 2011 ) .Nguyen, An T ; Menemenlis, Dimitris ; Kwok, Ronald ( 2011 )., Journal of Geophysical Research : Oceans, C4 ( 116 ), 10.1029/2010JC006573.Ron, Cyril ; Vondrák, Jan ( 2011 )., Acta Geodyn. Geomater., 3 ( 8 ), 243-247.Condron, Alan ; Winsor, Peter ( 2011 )., Geophysical Research Letters, 3 ( 38 ), 10.1029/2010GL046011.Hernandez, Fabrice ( 2011 )., functional Oceanography in the twenty-first Century, 633-655, 10.1007/978-94-007-0332-2_23.Monteiro, F M ; Dutkiewicz, Stephanie ; Follows, Michael J. ( 2011 )., Global Biogeochemical Cycles, 2 ( 25 ), 10.1029/2010GB003902.Kinney, Jaclyn Clement ( 2011 ) .Roquet, Fabien ; Wunsch, Carl ; Madec, Gurvan ( 2011 )., Journal of Physical Oceanography, 12 ( 41 ), 2328-2342, 10.1175/JPO-D-11-024.1.Tulloch, Ross R. ; Marshall, John ; Hill, Chris ; Smith, K Shafer ( 2011 )., Journal of Physical Oceanography, 6 ( 41 ), 1057-1076, 10.1175/2011JPO4404.1.Karatekin, Ö. ; de Viron, O. ; Lambert, S. ; Dehant, V. ; Rosenblatt, P. ; Van Hoolst, T. ; Le Maistre, S. ( 2011 )., Planetary and Space Science, 10 ( 59 ), 923-933, 10.1016/j.pss.2010.09.010.Vinogradova, Nadya T. ; Ponte, Rui M. ; Tamisiea, Mark E. ; Quinn, Katherine J. ; Hill, Emma M. ; Davis, James L. ( 2011 )., Journal of Geophysical Research, C8 ( 116 ), C08041, 10.1029/2011JC007037.Dutkiewicz, Stephanie ( 2011 )., CLIVAR Exchanges, 1 ( 9 ) .Woloszyn, M. ; Mazloff, M. ; Ito, T. ( 2011 )., Ocean Modelling, 10.1016/j.ocemod.2010.12.004.Dwivedi, S. ; Haine, T. W.N. ; Del Castillo, C. E. ( 2011 )., Journal of Geophysical Research : Oceans, 3 ( 116 ), 1-18, 10.1029/2009JC005615.Ubelmann, Clement ; Fu, Lee-Lueng ( 2011 )., Journal of Physical Oceanography, 8 ( 41 ), 1455-1464, 10.1175/2011JPO4507.1.Heimbach, Patrick ; Wunsch, Carl ; Ponte, Rui M ; Forget, Gael ; Hill, Chris ; Utke, Jean ( 2011 )., Deep Sea Research Part II : topical Studies in Oceanography, 17-18 ( 58 ), 1858-1879, 10.1016/j.dsr2.2010.10.065.Quinn, K J ; Ponte, R M ( 2011 )., Geophysical Research Letters ( 38 ), 10.1029/2010gl046537.Nastula, Jolanta ; Paśnicka, Małgorzata ; Kołaczek, Barbara ( 2011 )., Acta Geophysica, 3 ( 59 ), 561-577, 10.2478/s11600-011-0008-2.Jin, S G ; Zhang, L J ; Tapley, B D ( 2011 )., Geophysical Journal International, 2 ( 184 ), 651-660, 10.1111/j.1365-246X.2010.04869.x.Stammer, D. ; Agarwal, N. ; Herrmann, P. ; Köhl, A. ; Mechoso, C. R. ( 2011 )., Surveys in Geophysics, 4-5 ( 32 ), 621-642, 10.1007/s10712-011-9142-2.Halkides, D. J. ; Lucas, Lisanne E. ; Waliser, Duane E. ; Lee, Tong ; Murtugudde, Raghu ( 2011 )., Geophysical Research Letters, 17 ( 38 ), 10.1029/2011GL048545.Seoane, L. ; Nastula, J. ; Bizouard, C. ; Gambis, D. ( 2011 )., International Journal of Geophysics ( 2011 ), 10.1155/2011/174396.Williams, S D P ; Penna, N T ( 2011 )., Geophysical Research Letters ( 38 ), 10.1029/2011gl046940.Gao, S ; Qu, T D ; Fukumori, I ( 2011 )., Dynamics of Atmospheres and Oceans, 1-2 ( 51 ), 45-54, 10.1016/J.Dynatmoce.2010.10.002.Prowe, Friederike ( 2011 ) .Firing, Yvonne L ; Chereskin, Teresa K ; Mazloff, Matthew R ( 2011 )., Journal of Geophysical Research : Oceans, C8 ( 116 ), n/a-n/a, 10.1029/2011JC006999.Wu, X ; Collilieux, X ; Altamimi, Z ; Vermeersen, B L A ; Gross, R S ; Fukumori, I ( 2011 )., Geophysical Research Letters ( 38 ), L13304, 10.1029/2011gl047450.Xu, Yongsheng ; Fu, Lee-Lueng ; Tulloch, Ross R. ( 2011 )., Journal of Physical Oceanography, 8 ( 41 ), 1576-1582, 10.1175/JPO-D-11-059.1.Ito, T ; Hamme, R C ; Emerson, S ( 2011 )., Journal of Geophysical Research-Oceans ( 116 ), 10.1029/2010jc006828.van Sebille, Erik ; Baringer, Molly O. ; Johns, William E. ; Meinen, Christopher S. ; Beal, Lisa M. ; de Jong, M. Femke ; van Aken, Hendrik M. ( 2011 )., Journal of Geophysical Research, C12 ( 116 ), C12027, 10.1029/2011JC007171.Saito, Mak A ; Bertrand, Erin M ; Dutkiewicz, Stephanie ; Bulygin, Vladimir V ; Moran, Dawn M ; Monteiro, Fanny M ; Follows, Michael J. ; Valois, Frederica W ; Waterbury, John B ( 2011 )., Proceedings of the National Academy of Sciences, 6 ( 108 ), 2184-2189, 10.1073/pnas.1006943108.Holloway, Greg ; Nguyen, An ; Wang, Zeliang ( 2011 )., Journal of Geophysical Research : Oceans, C8 ( 116 ), 10.1029/2011JC007044.Dorman, Jeffrey G. ; Powell, Thomas M. ; Sydeman, William J. ; Bograd, Steven J. ( 2011 )., Geophysical Research Letters, 4 ( 38 ), 10.1029/2010GL046245.Abernathey, Ryan ; Marshall, John ; Ferreira, David ( 2011 )., Journal of Physical Oceanography, 12 ( 41 ), 2261-2278, 10.1175/JPO-D-11-023.1.Spreen, Gunnar ; Kwok, Ron ; Menemenlis, Dimitris ( 2011 )., Geophysical Research Letters, 19 ( 38 ), 10.1029/2011GL048970.Bizouard, C ; Remus, F ; Lambert, S B ; Seoane, L ; Gambis, D ( 2011 )., Astronomy & Astrophysics ( 526 ), 10.1051/0004-6361/201015894.Piecuch, C G ; Ponte, R M ( 2011 )., Geophysical Research Letters, 15 ( 38 ), 10.1029/2011GL048440.Zanna, Laure ; Heimbach, Patrick ; Moore, Andrew M ; Tziperman, Eli ( 2011 )., Journal of Climate, 2 ( 24 ), 413-427, 10.1175/2010JCLI3610.1.Xu, Yongsheng ; Fu, Lee-Lueng ( 2011 )., Journal of Physical Oceanography, 4 ( 41 ), 802-809, 10.1175/2010JPO4558.1.Halkides, Daria ; Lee, Tong ( 2011 )., Dynamics of Atmospheres and Oceans, 3 ( 51 ), 77-93, 10.1016/j.dynatmoce.2011.03.002.McGillicuddy, Dennis ; de Young, Brad ; Doney, Scott ; Glibert, Patricia ; Stammer, Detlef ; Werner, Francisco ( 2010 )., Oceanography, 3 ( 23 ), 126-139, 10.5670/oceanog.2010.28.Brown, Jaclyn N. ; Fedorov, Alexey V. ( 2010 )., Journal of Climate, 6 ( 23 ), 1563-1580, 10.1175/2009JCLI2914.1.Kriest, I. ; Khatiwala, S. ; Oschlies, A. ( 2010 )., Progress in Oceanography, 3-4 ( 86 ), 337-360, 10.1016/j.pocean.2010.05.002.Liu, Hailong ; Lin, Wuyin ; Zhang, Minghua ( 2010 )., Journal of Climate, 7 ( 23 ), 1779-1792, 10.1175/2009JCLI3135.1.Bianchi, Daniele ; Sarmiento, Jorge L. ; Gnanadesikan, Anand ; Key, Robert M. ; Schlosser, Peter ; Newton, Robert ( 2010 )., Earth and Planetary Science Letters, 3-4 ( 297 ), 379-386, 10.1016/j.epsl.2010.06.037.Jansen, Malte F. ; Ferrari, Raffaele ; Mooring, Todd A. ( 2010 )., Geophysical Research Letters, 3 ( 37 ), n/a-n/a, 10.1029/2009GL041808.Palter, J. B. ; Sarmiento, J. L. ; Gnanadesikan, A. ; Simeon, J. ; Slater, R. D. ( 2010 )., Biogeosciences, 11 ( 7 ), 3549-3568, 10.5194/bg-7-3549-2010.Huybers, Peter ; Wunsch, Carl ( 2010 )., Annual Review of Marine Science, 1 ( 2 ), 1-34, 10.1146/annurev-marine-120308-081056.Douglass, Elizabeth ; Roemmich, Dean ; Stammer, Detlef ( 2010 )., Deep-Sea Research Part II : topical Studies in Oceanography, 13-14 ( 57 ), 1127-1140, 10.1016/j.dsr2.2010.01.001.Lee, T ; Stammer, D ; Awaji, T ; Balmaseda, M ; Behringer, D ; Carton, J ; Ferry, N ; Fischer, A ; Fukumori, I ; Giese, B ; Haines, K ; Harrison, E ; Heimbach, P ; Kamachi, M ; Keppenne, C ; Köhl, A ; Masina, S ; Menemenlis, Dimitris ; Ponte, R ; Remy, E ; Rienecker, M ; Rosati, A ; Schroeter, J ; Smith, D ; Weaver, A ; Wunsch, C ; Xue, Y ( 2010 )., Proceedings of OceanObs’09 : Sustained Ocean Observations and Information for Society ( Vol. 2 ), 10.5270/OceanObs09.cwp.55.Wunsch, C ( 2010 )., Proceedings of OceanObs’09 : Sustained Ocean Observations and Information for Society ( Vol. 1 ), 10.5270/OceanObs09.pp.41.Mazloff, Matthew R ; Heimbach, Patrick ; Wunsch, Carl ( 2010 )., Journal of Physical Oceanography, 5 ( 40 ), 880-899, 10.1175/2009JPO4236.1.Saba, Vincent S ; Friedrichs, Marjorie A M ; Carr, Mary-Elena ; Antoine, David ; Armstrong, Robert A ; Asanuma, Ichio ; Aumont, Olivier ; Bates, Nicholas R ; Behrenfeld, Michael J ; Bennington, Val ; Bopp, Laurent ; Bruggeman, Jorn ; Buitenhuis, Erik T ; Church, Matthew J ; Ciotti, Aurea M ; Doney, Scott C ; Dowell, Mark ; Dunne, John ; Dutkiewicz, Stephanie ; Gregg, Watson ; Hoepffner, Nicolas ; Hyde, Kimberly J W ; Ishizaka, Joji ; Kameda, Takahiko ; Karl, David M ; Lima, Ivan ; Lomas, Michael W ; Marra, John ; McKinley, Galen A. ; Mélin, Frédéric ; Moore, J Keith ; Morel, André ; O’Reilly, John ; Salihoglu, Baris ; Scardi, Michele ; Smyth, Tim J ; Tang, Shilin ; Tjiputra, Jerry ; Uitz, Julia ; Vichi, Marcello ; Waters, Kirk ; Westberry, Toby K ; Yool, Andrew ( 2010 )., Global Biogeochemical Cycles, 3 ( 24 ), 10.1029/2009GB003655.Menemenlis, Dimitris ; Zhang, Hong ; Heimbach, P ; Hill, Christopher N. ; Campin, Jean-Michel ; Forget, Gaël ; Losch, Martin ; Nguyen, A ; Schodlok, M ( 2010 )., Proceedings of OceanObs’09 : Sustained Ocean Observations and Information for Society ( Additional Contributions ), 10.5270/OceanObs09.Volkov, Denis L. ; Fu, Lee-Lueng ; Lee, Tong ( 2010 )., Ocean Dynamics, 4 ( 60 ), 791-801, 10.1007/s10236-010-0288-0.van five hundred Werf, P M ; van Leeuwen, P J ; Ridderinkhof, H ; de Ruijter, W P M ( 2010 )., Journal of Geophysical Research : Oceans, C2 ( 115 ), 10.1029/2009JC005633.Hoteit, I. ; Cornuelle, B. ; Heimbach, P. ( 2010 )., Journal of Geophysical Research, C3 ( 115 ), C03001, 10.1029/2009JC005437.Volkov, Denis L. ; Fu, Lee-Lueng ( 2010 )., Journal of Physical Oceanography, 10 ( 40 ), 2197-2220, 10.1175/2010JPO4326.1.Qu, T D ; Gao, S ; Fukumori, I ; Fine, R A ; Lindstrom, E J ( 2010 )., Journal of Physical Oceanography, 10 ( 40 ), 2282-2297, 10.1175/2010jpo4358.1.Mcguire, A.D. ; Hayes, D.J. ; Kicklighter, D.W. ; Manizza, M. ; Zhuang, Q. ; Chen, M. ; Follows, Michael J. ; Gurney, K.R. ; Mcclelland, J.W. ; Melillo, J.M. ; Peterson, B.J. ; Prinn, R.G. ( 2010 )., tellus B : Chemical and Physical Meteorology, 5 ( 62 ), 455-474, 10.1111/j.1600-0889.2010.00497.x.Zanna, Laure ; Heimbach, Patrick ; Moore, Andrew M ; Tziperman, Eli ( 2010 )., Journal of Physical Oceanography, 5 ( 40 ), 983-1003, 10.1175/2009JPO4196.1.Wunsch, Carl ( 2010 )., Dynamics of Atmospheres and Oceans, 2 ( 50 ), 157-173, 10.1016/j.dynatmoce.2009.12.001.Baehr, J ( 2010 )., Journal of Physical Oceanography, 5 ( 40 ), 865-879, 10.1175/2009jpo4118.1.Dickey, J O ; Marcus, S L ; de Viron, O ( 2010 )., Geophysical Research Letters ( 37 ), 10.1029/2009gl041118.Heimbach, P ; Forget, G ; Ponte, R M ; Wunsch, C ; Balmaseda, M ; Awaji, T ; Baehr, J ; Behringer, D ; Carton, J ; Ferry, N ; Fischer, A ; Fukumori, I ; Giese, B ; Haines, K ; Harrison, E ; Hernandez, F ; Kamachi, M ; Keppenne, C ; Kohl, A ; Lee, T ; Menemenlis, Dimitris ; Oke, P ; Remy, E ; Rienecker, M ; Rosati, A ; Smith, D ; Speer, K ; Stammer, D ; Weaver, A ( 2010 )., Proceedings of OceanObs’09 : Sustained Ocean Observations and Information for Society ( Vol. 2 ), 10.5270/OceanObs09.cwp.42.Scotti, Alberto ( 2010 )., International Journal of Computational Fluid Dynamics, 10 ( 24 ), 393-406, 10.1080/10618562.2010.522527.García-García, D. ; Chao, B. F. ; Boy, J. P. ( 2010 )., Journal of Geophysical Research : Oceans, 12 ( 115 ), 1-14, 10.1029/2009JC005928.Heimbach, Patrick ; Menemenlis, Dimitris ; Losch, Martin ; Campin, Jean-Michel ; Hill, Chris ( 2010 )., Ocean Modelling, 1-2 ( 33 ), 145-158, 10.1016/j.ocemod.2010.02.002.Freeman, Anthony ; Zlotnicki, Victor ; Liu, Tim ; Holt, Benjamin ; Kwok, Ron ; Yueh, Simon ; Vazquez, Jorge ; Siegel, David ; Lagerloef, Gary ( 2010 )., Oceanography, 4 ( 23 ), 144-161, 10.5670/oceanog.2010.12.Ito, T. ; Woloszyn, M. ; Mazloff, M. ( 2010 )., Nature, 10.1038/nature08687.Dushaw, Brian D. ; Au, Whitlow ; Beszczynska-Möller, Agnieszka ; Brainard, Rusty ; Cornuelle, Bruce D ; Duda, Tim ; Dzieciuch, Matthew ; Forbes, Andrew ; Freitag, Lee ; Gascard, Jean-Claude ; Gavrilov, Alexander ; Gould, John ; Howe, Bruce ; Jayne, Steven R ; Johannessen, Ola M ; Lynch, James F ; Martin, David ; Menemenlis, Dimitris ; Mikhalevsky, Peter ; Miller, James H ; Moore, Sue E ; Munk, Walter H ; Nystuen, Jeff ; Odom, Robert I ; Orcutt, John ; Rossby, Tom ; Sagen, Hanne ; Sandven, Stein ; Simmen, Jeff ; Skarsoulis, Emmanuel ; Southall, Brandon ; Stafford, Kate ; Stephen, Ralph ; Vigness-Raposa, Kathleen J ; Vinogradov, Sergei ; Wong, Kevin B ; Worcester, Peter F ; Wunsch, Carl ( 2010 )., Proceedings of OceanObs’09 : Sustained Ocean Observations and Information for Society ( 2 ), 10.5270/OceanObs09.cwp.25.Chao, Benjamin F. ; Yan, Haoming ( 2010 )., Journal of Geophysical Research, B10 ( 115 ), B10417, 10.1029/2009JB007024.Forget, G ( 2010 )., Journal of Physical Oceanography, 6 ( 40 ), 1201-1221, 10.1175/2009jpo4043.1.Bragg, Jason G ; Dutkiewicz, Stephanie ; Jahn, Oliver ; Follows, Michael J. ; Chisholm, Sallie W ( 2010 )., PLoS ONE, 3 ( 5 ), e9569, 10.1371/journal.pone.0009569.Baruque, Bruno ; Corchado, Emilio ; Mata, Aitor ; Corchado, Juan M. ( 2010 )., Information Sciences, 10 ( 180 ), 2029-2043, 10.1016/j.ins.2009.12.032.Tamisiea, M E ; Hill, E M ; Ponte, R M ; Davis, J L ; Velicogna, I ; Vinogradova, N T ( 2010 )., Journal of Geophysical Research : Oceans, C7 ( 115 ), 10.1029/2009JC005687.Hunke, Elizabeth C. ( 2010 )., Ocean Modelling, 3-4 ( 34 ), 137-149, 10.1016/j.ocemod.2010.05.004.Song, Hajoon ; Hoteit, Ibrahim ; Cornuelle, Bruce D. ; Subramanian, Aneesh C. ( 2010 )., Monthly Weather Review, 10.1175/2010MWR2871.1.Barton, Andrew D ; Dutkiewicz, Stephanie ; Flierl, Glenn ; Bragg, Jason ; Follows, Michael J. ( 2010 )., Science, 5972 ( 327 ), 1509-1511, 10.1126/science.1184961.Fenty, Ian Gouverneur ( 2010 ) .Borreguero, Laura Herraiz ; Mottram, Ruth ; Cvijanovic, Ivana ( 2010 )., Eos, Transactions American Geophysical Union, 45 ( 91 ), 419, 10.1029/2010EO450006.Mata Conde, Aitor ( 2010 ) .Lee, T ; Awaji, T ; Balmaseda, M ; Ferry, N ; Fujii, Y ; Fukumori, I ; Giese, B ; Heimbach, P ; Kohl, A ; Masina, S ; Remy, E ; Rosati, A ; Schodlok, M ; Stammer, D ; Weaver, A ( 2010 )., Dynamics of Atmospheres and Oceans, 2 ( 50 ), 201-223, 10.1016/J.Dynatmoce.2009.12.004.Vinogradova, Nadya T ; Ponte, Rui M ; Tamisiea, Mark E ; Davis, James L ; Hill, Emma M ( 2010 )., Journal of Geophysical Research : Oceans, C6 ( 115 ), 10.1029/2009JC005783.Willis, Josh K ( 2010 )., Geophysical Research Letters, 6 ( 37 ), 10.1029/2010GL042372.Scharffenberg, Martin G. ( 2010 ) .Ferrari, Raffaele ; Wunsch, Carl ( 2010 )., Tellus A, 2 ( 62 ), 92-108, 10.1111/j.1600-0870.2009.00432.x.Vondrák, Jan ; Ron, Cyril ( 2010 )., Acta Geodynamica et Geomaterialia, 1 ( 7 ), 19-28.Jin, S G ; Chambers, D P ; Tapley, B D ( 2010 )., Journal of Geophysical Research-Solid Earth ( 115 ), 10.1029/2009jb006635.Losch, Martin ; Menemenlis, Dimitris ; Campin, Jean-Michel ; Heimbach, Patrick ; Hill, Chris ( 2010 )., Ocean Modelling, 1-2 ( 33 ), 129-144, 10.1016/j.ocemod.2009.12.008.Hausman, Jessica ; Zlotnicki, Victor ( 2010 )., Marine Geodesy, sup1 ( 33 ), 336-347, 10.1080/01490419.2010.487804.Abernathey, Ryan ; Marshall, John ; Mazloff, Matt ; Shuckburgh, Emily ( 2010 )., Journal of Physical Oceanography, 1 ( 40 ), 170-184, 10.1175/2009JPO4201.1.Monteiro, F M ; Follows, Michael J. ; Dutkiewicz, Stephanie ( 2010 )., Global Biogeochemical Cycles, 3 ( 24 ), 10.1029/2009GB003731.Li, Qun ; Zhang, Lu ; Wu, Huiding ( 2010 )., chinese Journal of Polar Research, 1 ( 22 ), 79-89.Durand, M ; Fu, L L ; Lettenmaier, D P ; Alsdorf, D E ; Rodriguez, E ; Esteban-Fernandez, D ( 2010 )., Proceedings of the IEEE, 5 ( 98 ), 766-779, 10.1109/JPROC.2010.2043031.Wang, W Q ; Kohl, A ; Stammer, D ( 2010 )., Geophysical Research Letters ( 37 ), 10.1029/2010gl043949.Wunsch, Carl ( 2010 )., Journal of Physical Oceanography, 10 ( 40 ), 2264-2281, 10.1175/2010JPO4376.1.Dobslaw, H. ; Dill, R. ; Grötzsch, A. ; Brzeziński, Aleksander ; Thomas, M. ( 2010 )., Journal of Geophysical Research, B10 ( 115 ), B10406, 10.1029/2009JB007127.Monteiro, Fanny ( 2009 )., MIT Libraries.Tulloch, Ross ; Marshall, John ; Smith, K. Shafer ( 2009 )., Journal of Geophysical Research, C2 ( 114 ), C02005, 10.1029/2008JC005055.Wunsch, Carl ; Heimbach, Patrick ( 2009 )., Journal of Physical Oceanography, 2 ( 39 ), 351-368, 10.1175/2008JPO4012.1.Kroner, C ; Thomas, M ; Dobslaw, H ; Abe, M ; Weise, A ( 2009 )., Journal of Geodynamics, 3-5 ( 48 ), 354-359, 10.1016/j.jog.2009.09.009.Wunsch, Carl ; Heimbach, Patrick ; Ponte, Rui ; Fukumori, Ichiro ( 2009 )., Oceanography, 2 ( 22 ), 88-103, 10.5670/oceanog.2009.41.Sannino, G ; Herrmann, M ; Carillo, A ; Rupolo, V ; Ruggiero, V ; Artale, V ; Heimbach, P ( 2009 )., Ocean Modelling, 1 ( 30 ), 56-72, 10.1016/j.ocemod.2009.06.002.Condron, Alan ; Winsor, Peter ; Hill, Chris ; Menemenlis, Dimitris ( 2009 )., Journal of Climate, 9 ( 22 ), 2422-2437, 10.1175/2008JCLI2626.1.Heimbach, Patrick ; Bugnion, Véronique ( 2009 )., Annals of Glaciology, 52 ( 50 ), 67-80, 10.3189/172756409789624256.van five hundred Werf, Petra M. ; Schouten, M W ; van Leeuwen, P J ; Ridderinkhof, H ; de Ruijter, W P M ( 2009 )., Journal of Geophysical Research : Oceans, C3 ( 114 ), 10.1029/2008JC004911.Seitz, Florian ; Krügel, Manuela ( 2009 )., geodetic Reference Frames, 23-29, 10.1007/978-3-642-00860-3_4.Mata, Aitor ; Tapia, Dante I ; González, Angélica ; Pérez, Belén ( 2009 )., 7th International Conference on PAAMS’09, 274-283.Brzeziński, Aleksander ; Nastula, Jolanta ; Kołaczek, Barbara ( 2009 )., Journal of Geodynamics, 3-5 ( 48 ), 235-240, 10.1016/j.jog.2009.09.021.Ma, Jin ; Zhou, Yong-Hong ; Liao, De-Chun ; Chen, Jian-Li ( 2009 )., chinese Astronomy and Astrophysics, 4 ( 33 ), 410-420, 10.1016/j.chinastron.2009.09.007.Wunsch, Carl ( 2009 )., Atmosphere-Ocean, 4 ( 47 ), 281-291, 10.3137/OC310.2009.Halkides, D J ; Lee, Tong ( 2009 )., Journal of Geophysical Research : Oceans, C2 ( 114 ), 10.1029/2008JC004949.Nguyen, An T. ; Kwok, Ronald ; Menemenlis, Dimitris ( 2009 ) .Cummings, James ; Bertino, Laurent ; Brasseur, Pierre ; Fukumori, Ichiro ; Kamachi, Masafumi ; Martin, Matthew J ; Mogensen, Kristian ; Oke, Peter ; Testut, Charles E ; Verron, Jacques ; Weaver, Anthony ( 2009 )., Oceanography, 3 ( 22 ), 96-109, 10.5670/oceanog.2009.69.Corchado, Juan Manuel ; Mata, Aitor ; Rodriguez, Sara ( 2009 )., Advanced Agent-Based Environmental Management Systems, 91-117, 10.1007/978-3-7643-8900-0_5.Mata, Aitor ; Corchado, Juan Manuel ( 2009 )., technical Systems with Applications, 4 ( 36 ), 8239-8246, 10.1016/j.eswa.2008.10.003.Gruber, Nicolas ; Gloor, Manuel ; Mikaloff Fletcher, Sara E ; Doney, Scott C ; Dutkiewicz, Stephanie ; Follows, Michael J. ; Gerber, Markus ; Jacobson, Andrew R ; Joos, Fortunat ; Lindsay, Keith ; Menemenlis, Dimitris ; Mouchet, Anne ; Müller, Simon A ; Sarmiento, Jorge L ; Takahashi, Taro ( 2009 )., Global Biogeochemical Cycles, 1 ( 23 ), 10.1029/2008GB003349.Fernández, L.I ( 2009 )., Observing our Changing Earth ( 133 ), 493-500, 10.1007/978-3-540-85426-5_59.Manizza, M ; Follows, Michael J. ; Dutkiewicz, Stephanie ; McClelland, J W ; Menemenlis, Dimitris ; Hill, C N ; Townsend-Small, A ; Peterson, B J ( 2009 )., Global Biogeochemical Cycles, 4 ( 23 ), 10.1029/2008GB003396.Dushaw, Brian D. ( 2009 ) .Maze, Guillaume ; Forget, Gael ; Buckley, Martha ; Marshall, John ; Cerovecki, Ivana ( 2009 )., Journal of Physical Oceanography, 8 ( 39 ), 1818-1835, 10.1175/2009JPO3985.1.Gross, Richard S. ( 2009 )., Journal of Geodesy, 7 ( 83 ), 635-644, 10.1007/s00190-008-0277-y.van five hundred Werf, Petra M. ( 2009 ) .Douglass, Elizabeth ; Roemmich, Dean ; Stammer, Detlef ( 2009 )., Journal of Atmospheric and Oceanic Technology, 11 ( 26 ), 2420-2443, doi:10.1175/2009JTECHO641.1.Balmaseda, Magdalena Alonso ; Alves, Oscar J. ; Arribas, Alberto ; Awaji, Toshiyuki ; Behringer, David W. ; Ferry, Nicolas ; Fujii, Yosuke ; Lee, Tong ; Rienecker, Michele ; Rosati, Tony ; Stammer, Detlef ( 2009 )., Oceanography, 3 ( 22 ), 154-159.Ferrari, Raffaele ; Wunsch, Carl ( 2009 )., Annual Review of Fluid Mechanics, 1 ( 41 ), 253-282, 10.1146/annurev.fluid.40.111406.102139.Broquet, G. ; Edwards, C.A. ; Moore, A.M. ; Powell, B.S. ; Veneziani, M. ; Doyle, J.D. ( 2009 )., Dynamics of Atmospheres and Oceans, 1-3 ( 48 ), 69-92, 10.1016/j.dynatmoce.2009.03.001.Moore, Andrew M. ; Arango, Hernan G. ; Di Lorenzo, Emanuele ; Miller, Arthur J. ; Cornuelle, Bruce D. ( 2009 )., Journal of Physical Oceanography, 3 ( 39 ), 702-720, 10.1175/2008JPO3740.1.Utke, Jean ; Hascoet, Laurent ; Heimbach, Patrick ; Hill, Chris ; Hovland, Paul ; Naumann, Uwe ( 2009 )., 2009 IEEE International Symposium on Parallel & Distributed Processing, 1-8, 10.1109/IPDPS.2009.5161165.Nguyen, A T ; Menemenlis, Dimitris ; Kwok, R ( 2009 )., Journal of Geophysical Research : Oceans, C11 ( 114 ), 10.1029/2008JC005121.Biswas, Rupak ; Tu, Eugene L. ; Van Dalsem, R. William ( 2009 )., Computational Fluid Dynamics 2006, 14-28, 10.1007/978-3-540-92779-2_2.Fu, Lee-Lueng ( 2009 )., Journal of Geophysical Research, C11 ( 114 ), C11017, 10.1029/2009JC005349.Galton-Fenzi, Benjamin K. ( 2009 ) .Seoane, L. ; Nastula, J. ; Bizouard, C. ; Gambis, D. ( 2009 )., Geophysical Journal International, 2 ( 178 ), 614-622, 10.1111/j.1365-246X.2009.04181.x.Mata, Ai ; Perez, B ; Corchado, E ; Bajo, J ( 2009 )., 2009 12th International Conference on Information Fusion, 968-975.Qu, T D ; Gao, S ; Fukumori, I ; Fine, R A ; Lindstrom, E J ( 2009 )., Journal of Physical Oceanography, 8 ( 39 ), 1836-1853, 10.1175/2009jpo4045.1.Dutkiewicz, Stephanie ; Follows, Michael J. ; Bragg, J G ( 2009 )., Global Biogeochemical Cycles, 4 ( 23 ), 10.1029/2008GB003405.Ponte, Rui M ; Quinn, Katherine J ( 2009 )., Geophysical Research Letters, 13 ( 36 ), 10.1029/2009GL039060.Veneziani, M. ; Edwards, C. A. ; Doyle, J. D. ; Foley, D. ( 2009 )., Journal of Geophysical Research, C4 ( 114 ), C04015, 10.1029/2008JC004774.Baehr, J ; Cunnningham, S ; Haak, H ; Heimbach, P ; Kanzow, T ; Marotzke, J ( 2009 )., Ocean Sci., 4 ( 5 ), 575-589, 10.5194/os-5-575-2009.Ponte, Rui M. ( 2009 )., Journal of Physical Oceanography, 2 ( 39 ), 458-464, 10.1175/2008JPO4034.1.Hoteit, I. ; Cornuelle, B. ; Kim, S.Y. ; Forget, G. ; Köhl, A. ; Terrill, E. ( 2009 )., Dynamics of Atmospheres and Oceans, 1-3 ( 48 ), 175-197, 10.1016/j.dynatmoce.2008.11.005.Dushaw, Brian D. ; Worcester, P F ; Munk, W H ; Spindel, R C ; Mercer, J A ; Howe, B M ; Metzger, K ; Birdsall, T G ; Andrew, R K ; Dzieciuch, M A ; Cornuelle, B D ; Menemenlis, Dimitris ( 2009 )., Journal of Geophysical Research, C7 ( 114 ), C07021, 10.1029/2008JC005124.Khatiwala, Samar ( 2008 )., Ocean Modelling, 3-4 ( 23 ), 121-129, 10.1016/j.ocemod.2008.05.002.Brown, Jaclyn N. ; Fedorov, Alexey V. ( 2008 )., Journal of Marine Research, 1 ( 66 ), 1-23, 10.1357/002224008784815757.Schott, F A ; Stramma, L ; Wang, W ; Giese, B S ; Zantopp, R ( 2008 )., Geophysical Research Letters, 10 ( 35 ), 10.1029/2008gl033757.Wunsch, Carl ; Heimbach, Patrick ( 2008 )., quaternary Science Reviews, 7-8 ( 27 ), 637-651, 10.1016/j.quascirev.2008.01.006.Kwok, R ; Hunke, E C ; Maslowski, W ; Menemenlis, Dimitris ; Zhang, J ( 2008 )., Journal of Geophysical Research : Oceans, C11 ( 113 ), 10.1029/2008JC004783.Nastula, J. ; Kolaczek, B. ; Salstein, D. A. ( 2008 )., Proceedings of the “ Journées Systèmes de Référence Spatio-temporels 2007, 220-221.Korbacz, A ; Nski, A Brzezi ; Thomas, M ( 2008 )., Proceedings of the “ Journées Systèmes de Référence Spatio-temporels 2007 ”, 188-191.Heimbach, P ( 2008 )., CLIVAR Exchanges, 1 ( 13 ), 13-17.Hoteit, I ; Cornuelle, B ; Thierry, V ; Stammer, D ( 2008 )., Journal of Atmospheric and Oceanic Technology, 1 ( 25 ), 131-147, 10.1175/2007jtecho528.1.Cazes-Boezio, Gabriel ; Menemenlis, Dimitris ; Mechoso, Carlos R ( 2008 )., Journal of Climate, 9 ( 21 ), 1929-1947, 10.1175/2007JCLI1574.1.Vinogradov, Sergey V ; Ponte, Rui M ; Heimbach, Patrick ; Wunsch, Carl ( 2008 )., Journal of Geophysical Research : Oceans, C3 ( 113 ), 10.1029/2007JC004496.Zhong, Min ; Yan, Hao-ming ( 2008 )., chinese Astronomy and Astrophysics, 1 ( 32 ), 91-99, 10.1016/j.chinastron.2008.01.009.Campin, Jean-Michel ; Marshall, J ; Ferreira, D ( 2008 )., Ocean Modelling, 1-2 ( 24 ), 1-14, 10.1016/j.ocemod.2008.05.005.Kohl, A ; Stammer, D ( 2008 )., Journal of Climate, 9 ( 21 ), 1876-1890, 10.1175/2007jcli2081.1.Chen, J. L. ; Wilson, C. R. ( 2008 )., Journal of Geophysical Research : hearty Earth, 6 ( 113 ), 1-9, 10.1029/2007JB005397.Mazloff, M ( 2008 ) .Göttl, Franziska ( 2008 ) .Kuo, C Y ; Shum, C K ; Guo, J Y ; Yi, Y C ; Braun, A ; Fukumori, I ; Matsumoto, K ; Sato, T ; Shibuya, K ( 2008 )., Earth Planets and Space, 5 ( 60 ), 477-485, 10.1186/BF03352814.Losch, Martin ( 2008 )., Journal of Geophysical Research, C8 ( 113 ), C08043, 10.1029/2007JC004368.Quinn, Katherine J ; Ponte, Rui M ( 2008 )., Journal of Geophysical Research : Oceans, C12 ( 113 ), 10.1029/2008JC004903.Seoane, L. ; Bizouard, C. ; Gambis, D. ( 2008 )., Proceedings of the “ Journées Systèmes de Référence Spatio-temporels 2007 ” .Stammer, D ; Park, S ; Kohl, A ; Lukas, R ; Santiago-Mandujano, F ( 2008 )., Journal of Physical Oceanography, 9 ( 38 ), 1931-1948, 10.1175/2008jpo3751.1.Kim, S B ; Fukumori, I ( 2008 )., Journal of Geophysical Research-Oceans, C6 ( 113 ), 10.1029/2007jc004409.Marshall, John ; Plumb, R. Alan ( 2008 ) .Utke, Jean ; Naumann, Uwe ; Fagan, Mike ; Tallent, Nathan ; Strout, Michelle ; Heimbach, Patrick ; Hill, Chris ; Wunsch, Carl ( 2008 )., ACM Trans. Math. Softw., 4 ( 34 ), 1-36, 10.1145/1377596.1377598.Cabanes, C ; Lee, T ; Fu, L L ( 2008 )., Journal of Physical Oceanography, 2 ( 38 ), 467-480, 10.1175/2007jpo3726.1.Wunsch, Carl ( 2008 )., Nature Geosci, 3 ( 1 ), 165-168, 10.1038/ngeo126.Wunsch, C ; Heimbach, P ( 2008 )., Journal of Physical Oceanography, 9 ( 38 ), 2108-2110, 10.1175/2008JPO3936.1.Forget, Gaël ; Mercier, Herlé ; Ferron, Bruno ( 2008 )., Ocean Modelling, 1 ( 20 ), 17-34, 10.1016/j.ocemod.2007.06.002.Davis, Xujing Jia ( 2008 ) .Volkov, Denis L. ; Fu, Lee-Lueng ( 2008 )., Journal of Geophysical Research : Oceans, C11 ( 113 ), 10.1029/2008JC004841.Danabasoglu, Gokhan ; Ferrari, Raffaele ; McWilliams, James C ( 2008 )., Journal of Climate, 6 ( 21 ), 1192-1208, 10.1175/2007JCLI1508.1.Mazloff, M R ( 2008 ) .Fox-Kemper, B ; Menemenlis, Dimitris ( 2008 )., Ocean Modeling in an Eddying Regime, 319-337, 10.1029/177GM19.White, Laurent ; Adcroft, Alistair J. ( 2008 )., Journal of Computational Physics, 15 ( 227 ), 7394-7422, 10.1016/j.jcp.2008.04.026.Losch, Martin ; Schröder, Michael ; Hohn, Sönke ; Völker, Christoph ( 2008 )., John von Neumann Institute for Computing Symposium 2008 ( 39 ), 289-296.Corchado, Juan Manuel ; Mata, Aitor ( 2008 )., Advances in Case-Based Reasoning, 573-586, 10.1007/978-3-540-85502-6_39.Forget, Gaël ; Ferron, Bruno ; Mercier, Herlé ( 2008 )., Ocean Modelling, 1 ( 20 ), 1-16, 10.1016/j.ocemod.2007.06.001.Cheng, Xuhua ; Qi, Yiquan ; Zhou, Wen ( 2008 )., Global and Planetary Change, 1 ( 63 ), 57-66, 10.1016/j.gloplacha.2008.06.001.Hoteit, I. ( 2008 )., International Journal for Numerical Methods in Fluids, 11 ( 58 ), 1181-1199, 10.1002/fld.1794.Göttl, F ; Seitz, F ( 2008 )., Observing our Changing Earth, 439-445, 10.1007/978-3-540-85426-5_53.Volkov, Denis L. ; Lee, Tong ; Fu, Lee-Lueng ( 2008 )., Geophysical Research Letters, 20 ( 35 ), 10.1029/2008GL035490.Kohl, A ; Stammer, D ( 2008 )., Journal of Physical Oceanography, 9 ( 38 ), 1913-1930, 10.1175/2008jpo3775.1.Yulaeva, E. ; Kanamitsu, M. ; Roads, J. ( 2008 )., Monthly Weather Review, 1 ( 136 ), 295-316, 10.1175/2007MWR1929.1.Haine, Thomas ; Böning, Claus ; Brandt, Peter ; Fischer, Jürgen ; Funk, Andreas ; Kieke, Dagmar ; Kvaleberg, Erik ; Rhein, Monika ; Visbeck, Martin ( 2008 )., Arctic-Subarctic Ocean Fluxes, 653-701, 10.1007/978-1-4020-6774-7_28.Menemenlis, Dimitris ; Campin, Jean-Michel ; Heimbach, Patrick ; Hill, Christopher N. ; Lee, Tong ; Nguyen, An T. ; Schodlok, Michael P. ; Zhang, Hong ( 2008 )., Mercator Ocean Quarterly Newsletter ( 31 ), 13-21.Douglass, Elizabeth ( 2007 )., UC San Diego Library.Munekane, H. ( 2007 )., Journal of Geophysical Research, B7 ( 112 ), B07403, 10.1029/2006JB004618.Cheng, Xuhua ; Qi, Yiquan ( 2007 )., Global and Planetary Change, 3-4 ( 57 ), 371-382, 10.1016/j.gloplacha.2007.01.005.Ponte, R M ; Quinn, K J ; Wunsch, C ; Heimbach, P ( 2007 )., Geophysical Research Letters, 9 ( 34 ), 10.1029/2007gl029599.Hill, Chris ; Menemenlis, Dimitris ; Ciotti, Bob ; Henze, Chris ( 2007 )., Scientific Programming, 2 ( 15 ), 10.1155/2007/458463.Vinogradova, Nadya ; Ponte, Rui ; Stammer, Detlef ( 2007 )., Geophysical Research Letters ( 34 ), L03608, 10.1029/ 2006GL028588.Köhl, A ; Stammer, D ; Cornuelle, B ( 2007 )., Journal of Physical Oceanography, 2 ( 37 ), 313-337, 10.1175/JPO3014.1.Ponte, Rui M ; Vinogradov, Sergey V ( 2007 )., Journal of Physical Oceanography, 2 ( 37 ), 245-258, 10.1175/JPO3010.1.Kim, S B ; Lee, T ; Fukumori, I ( 2007 )., Journal of Climate, 15 ( 20 ), 3822-3843, 10.1175/Jcli4206.1.Suarez, Max ; Trayanov, Atanas ; Hill, Chris ; Schopf, Paul ; Vikhliaev, Yuri ( 2007 )., Proceedings of the 2007 symposium on Component and framework engineering in high-performance and scientific computer science, 11-20, 10.1145/1297385.1297388.Danabasoglu, Gokhan ; Marshall, John ( 2007 )., Ocean Modelling, 2 ( 18 ), 122-141, 10.1016/j.ocemod.2007.03.006.Wunsch, Carl ( 2007 )., ocean circulation : Mechanisms and Impacts-Past and Future Changes of Meridional Overturning, 53-74, 10.1029/173GM06.Mikaloff Fletcher, S E ; Gruber, N ; Jacobson, A R ; Gloor, M ; Doney, S C ; Dutkiewicz, Stephanie ; Gerber, M ; Follows, Michael J. ; Joos, F ; Lindsay, K ; Menemenlis, Dimitris ; Mouchet, A ; Müller, S A ; Sarmiento, J L ( 2007 )., Global Biogeochemical Cycles, 1 ( 21 ), 10.1029/2006GB002751.Penven, Pierrick ; Tan, Thi-anh ( 2007 ) .Ponte, Rui M ; Wunsch, Carl ; Stammer, Detlef ( 2007 )., Journal of Atmospheric and Oceanic Technology, 6 ( 24 ), 1078-1085, 10.1175/JTECH2029.1.Fernández, L. I. ; Schuh, H. ; Schmidt, M. ; Seitz, F. ( 2007 )., Geophysical Journal International, 1 ( 169 ), 12-18, 10.1111/j.1365-246X.2006.03304.x.Masaki, Yoshimitsu ( 2007 )., Bulletin of the Geographical Survey Institute ( 54 ), 65-73.Losch, Martin ; Heimbach, Patrick ( 2007 )., Journal of Physical Oceanography, 2 ( 37 ), 377-393, Doi 10.1175/Jpo3017.1.Zlotnicki, V ; Wahr, J ; Fukumori, I ; Song, Y T ( 2007 )., Journal of Physical Oceanography, 2 ( 37 ), 230-244, 10.1175/Jpo3009.1.Forget, G ; Wunsch, C ( 2007 )., Journal of Physical Oceanography, 8 ( 37 ), 1997-2008, 10.1175/jpo3072.1.Sachs, julian P. ( 2007 )., Geophysical Research Letters, 3 ( 34 ), L03609, 10.1029/2006GL028495.Johnson, E S ; Bonjean, F ; Lagerloef, G S E ; Gunn, J T ; Mitchum, G T ( 2007 )., Journal of Atmospheric and Oceanic Technology, 4 ( 24 ), 688-701, 10.1175/jtech1971.1.Ma, J ; Zhou, Y H ; Liao, D C ; Chen, J L ( 2007 )., chinese Journal of Astronomy and Astrophysics, 6 ( 7 ), 831-838, 10.1088/1009-9271/7/6/11.Gebbie, Geoffrey ( 2007 )., Journal of Geophysical Research : Oceans, C6 ( 112 ), 10.1029/2006JC003568.Fenoglio-Marc, L ; Kusche, J ; Becker, M ; Fukumori, I ( 2007 )., Journal of Geophysical Research-Oceans, C12 ( 112 ), 10.1029/2007jc004196.Schrama, E. J.O. ; Visser, P. N.A.M. ( 2007 )., Journal of Geodesy, 1 ( 81 ), 67-80, 10.1007/s00190-006-0085-1.Wunsch, Carl ; Heimbach, Patrick ( 2007 )., Physica D : nonlinear Phenomena, 1-2 ( 230 ), 197-208, 10.1016/j.physd.2006.09.040.Verdy, A. ; Dutkiewicz, Stephanie ; Follows, Michael J. ; Marshall, J. ; Czaja, A. ( 2007 )., Global Biogeochemical Cycles, 2 ( 21 ), 1-10, 10.1029/2006GB002916.Khatiwala, Samar ( 2007 )., Global Biogeochemical Cycles, 3 ( 21 ), 1-14, 10.1029/2007GB002923.Menemenlis, Dimitris ; Fukumori, I ; Lee, T ( 2007 )., Journal of Physical Oceanography, 2 ( 37 ), 359-376, 10.1175/Jpo3015.1.Schott, F A ; Wang, W Q ; Stammer, D ( 2007 )., Geophysical Research Letters, 5 ( 34 ), 10.1029/2006gl028478.Nastula, J. ; Kolaczek, B. ( 2007 )., artificial Satellites, 1 ( 42 ), 1-7, 10.2478/v10018-007-0013-5.Wunsch, Carl ; Ponte, Rui M ; Heimbach, Patrick ( 2007 )., Journal of Climate, 24 ( 20 ), 5889-5911, 10.1175/2007JCLI1840.1.Heimbach, P ; Wunsch, C ( 2007 )., U.S. CLIVAR Variations, 3 ( 5 ), 1-5.Fukumori, I ; Menemenlis, Dimitris ; Lee, T ( 2007 )., Journal of Physical Oceanography, 2 ( 37 ), 338-358, 10.1175/Jpo3016.1.Stammer, Detlef ; Köhl, Armin ; Wunsch, Carl ( 2007 )., Journal of Atmospheric and Oceanic Technology, 8 ( 24 ), 1464-1478, 10.1175/JTECH2044.1.Follows, Michael J. ; Dutkiewicz, Stephanie ; Grant, Scott ; Chisholm, Sallie W ( 2007 )., Science, 5820 ( 315 ), 1843-1846, 10.1126/science.1138544.Bingham, R. J. ; Hughes, C. W. ( 2006 )., Geophysical Research Letters, 8 ( 33 ), L08607, 10.1029/2005GL025489.Lorbacher, K. ; Dommenget, D. ; Niiler, P. P. ; Köhl, A. ( 2006 )., Journal of Geophysical Research, C7 ( 111 ), C07010, 10.1029/2003JC002157.Wunsch, Carl ( 2006 )., physical oceanography : Developments Since 1950, 181-201, 10.1007/0-387-33152-2_12.Wunsch, C ( 2006 )., 15 Years of Progress in Radar Altimetry Symposium.Hill III, Edward H ; Enderton, Daniel ; Hill, Christopher N ( 2006 ) .Hoteit, Ibrahim ; Köhl, Armin ( 2006 )., Journal of Oceanography, 4 ( 62 ), 539-550, 10.1007/s10872-006-0074-2.Bugnion, Véronique ; Hill, Chris ; Stone, Peter H ( 2006 )., Journal of Climate, 15 ( 19 ), 3732-3750, 10.1175/JCLI3787.1.Matsumoto, K ; Sato, T ; Fujimoto, H ; Tamura, Y ; Nishino, M ; Hino, R ; Higashi, T ; Kanazawa, T ( 2006 )., Geophysical Research Letters, 16 ( 33 ), 10.1029/2006gl026706.Dutkiewicz, Stephanie ; Follows, Michael J. ; Heimbach, P ; Marshall, J ( 2006 )., Geophysical Research Letters, 2 ( 33 ), 10.1029/gl024987.Takiguchi, Hiroshi ; Fukuda, Yoichi ; Otsubo, Toshimichi ( 2006 )., Earth, Planets and Space, 2 ( 58 ), E13-E16, 10.1186/BF03353365.Spiridonov, E. A. ; Tsurkis, I. Ya. ( 2006 )., Izvestiya, Physics of the Solid Earth, 2 ( 42 ), 149-155, 10.1134/S1069351306020066.Mikaloff Fletcher, S E ; Gruber, N ; Jacobson, A R ; Doney, S C ; Dutkiewicz, Stephanie ; Gerber, M ; Follows, Michael J. ; Joos, F ; Lindsay, K ; Menemenlis, Dimitris ; Mouchet, A ; Müller, S A ; Sarmiento, J L ( 2006 )., Global Biogeochemical Cycles, 2 ( 20 ), 10.1029/2005GB002530.Manoj, C ; Kuvshinov, A ; Maus, S ; Luhr, H ( 2006 )., Earth Planets Space, 4 ( 58 ), 429-437.Ferreira, D ; Marshall, J ( 2006 )., Ocean Modelling, 1 ( 13 ), 86-107, 10.1016/j.ocemod.2005.12.001.Fukumori, Ichiro ( 2006 )., Ocean Weather Forecasting : An Integrated View of Oceanography, 317-342, 10.1007/1-4020-4028-8_11.Kim, S B ; Fukumori, I ; Lee, T ( 2006 )., Journal of Atmospheric and Oceanic Technology, 6 ( 23 ), 840-853, 10.1175/Jtech1883.1.Benjamin, David ; Wahr, John ; Ray, Richard D. ; Egbert, Gary D. ; Desai, Shailen D. ( 2006 )., Geophysical Journal International, 1 ( 165 ), 3-16, 10.1111/j.1365-246X.2006.02915.x.Ellsworth, David ; Green, Bryan ; Henze, Chris ; Moran, Patrick ; Sandstrom, Timothy ( 2006 )., IEEE Transactions on Visualization and Computer Graphics, 5 ( 12 ), 997-1004, 10.1109/tvcg.2006.128.Zhong, M ; Yan, H M ; Wu, X P ; Duan, J B ; Zhu, Y Z ( 2006 )., Journal of Geodynamics, 1-3 ( 41 ), 147-154, 10.1016/j.jog.2005.10.011.Mazloff, Matthew R. ( 2006 )., Thesis, 106, 10.1575/1912/1282.Thompson, B ; Gnanaseelan, C ; Salvekar, P S ( 2006 )., Journal of Marine Research, 6 ( 64 ), 853-880, 10.1357/002224006779698350.Ponte, Rui M ( 2006 )., Journal of Physical Oceanography, 3 ( 36 ), 426-434, 10.1175/JPO2843.1.Stammer, Detlef ; Wunsch, Carl ; Ueyoshi, Kyozo ( 2006 )., Journal of Physical Oceanography, 3 ( 36 ), 543-550, 10.1175/JPO2858.1.Fu, Lee-Lueng ( 2006 )., Geophysical Research Letters, 14 ( 33 ), 10.1029/2006GL026245.Gebbie, Geoffrey ; Heimbach, Patrick ; Wunsch, Carl ( 2006 )., Journal of Geophysical Research : Oceans, C10 ( 111 ), 10.1029/2005JC003094.Wu, X P ; Heflin, M B ; Ivins, E R ; Fukumori, I ( 2006 )., Journal of Geophysical Research-Solid Earth, B9 ( 111 ), B09401, 10.1029/2005jb004100.Kwok, R. ; Cunningham, G. F. ; Zwally, H. J. ; Yi, D. ( 2006 )., Journal of Geophysical Research, C6 ( 111 ), C06006, 10.1029/2005JC003175.Heimbach, P ; Ponte, R M ; Evangelinos, C ; Forget, G ; Mazloff, M ; Menemenlis, Dimitris ; Vinogradov, S ; Wunsch, C ( 2006 )., Proceedings of the 15 Years of Progress in Radar Altimetry Symposium ( SP-614 ) .Krakauer, Nir Y ; Randerson, James T ; Primeau, FranÇOis W ; Gruber, Nicolas ; Menemenlis, Dimitris ( 2006 )., Tellus B, 5 ( 58 ), 390-417, 10.1111/j.1600-0889.2006.00223.x.Wunsch, Carl ; Heimbach, Patrick ( 2006 )., Journal of Physical Oceanography, 11 ( 36 ), 2012-2024, 10.1175/JPO2957.1.Ayoub, Nadia ( 2006 )., Ocean Modelling, 3-4 ( 12 ), 319-347, 10.1016/j.ocemod.2005.06.003.Douglass, Elizabeth ; Roemmich, Dean ; Stammer, Detlef ( 2006 )., Journal of Geophysical Research, C4 ( 111 ), C04001, 10.1029/2005JC003015.Naumann, U ; Utke, J ; Heimbach, P ; Hill, C ; Ozyurt, D ; Wunsch, C ; Fagan, M ; Tallent, N ; Strout, M ( 2006 )., ECCOMAS CFD 2006 : Proceedings of the European Conference on Computational Fluid Dynamics, May.Wunsch, Carl ( 2006 ) .Cheng, B N ( 2006 )., Comput. Methods Sci. Technol. ( 12 ), 23-24, 10.12921/cmst.2006.SI.01.23-24.Taft, James ( 2006 )., 44th AIAA Aerospace Sciences Meeting and Exhibit, 10.2514/6.2006-85.Han, Shin-Chan ; Shum, C. K. ; Jekeli, Christopher ; Kuo, Chung-Yen ; Wilson, Clark ; Seo, Ki-Weon ( 2005 )., Geophysical Journal International, 1 ( 163 ), 18-25, 10.1111/j.1365-246X.2005.02756.x.Chen, Jianli ( 2005 )., Journal of Geophysical Research, B8 ( 110 ), B08404, 10.1029/2004JB003474.Gross, R S ; Fukumori, I ; Menemenlis, Dimitris ( 2005 )., Journal of Geophysical Research-Solid Earth, B9 ( 110 ), B09405, 10.1029/2004jb003565.Wunsch, Carl ( 2005 )., Journal of Climate, 21 ( 18 ), 4374-4380, 10.1175/JCLI3539.1.Menemenlis, Dimitris ; Fukumori, I ; Lee, T ( 2005 )., Monthly Weather Review, 5 ( 133 ), 1224-1240, 10.1175/Mwr2912.1.Thomas, M. ; Dobslaw, H. ; Stuck, J. ; Seitz, F. ( 2005 )., Forcing of arctic gesticulate in the Chandler frequency band : A contribution to understanding interannual climate variations, Cahiers du Centre Européen de Géodynamique et de Séismologie, 143-148.Davis, R E ( 2005 )., Journal of Physical Oceanography, 5 ( 35 ), 683-707, 10.1175/jpo2702.1.Ferreira, David ; Marshall, John ; Heimbach, Patrick ( 2005 )., Journal of Physical Oceanography, 10 ( 35 ), 1891-1910, 10.1175/JPO2785.1.Holme, R. ; de Viron, O. ( 2005 )., Geophysical Journal International, 2 ( 160 ), 435-439, 10.1111/j.1365-246X.2004.02510.x.Stammer, D ( 2005 )., Journal of Physical Oceanography, 6 ( 35 ), 1143-1153, 10.1175/jpo2733.1.Menemenlis, Dimitris ; Hill, Christopher N. ; Adcroft, Alistair J. ; Campin, Jean-Michel ; Cheng, B ; Ciotti, B ; Fukumori, I ; Heimbach, P ; Henze, C ; Köhl, A ; Lee, T ; Stammer, D ; Taft, J ; Zhang, J ( 2005 )., Eos, Transactions American Geophysical Union, 9 ( 86 ), 89-96, 10.1029/2005EO090002.Hoteit, I. ; Cornuelle, B. ; Köhl, A. ; Stammer, D. ( 2005 )., quarterly Journal of the Royal Meteorological Society, 613 ( 131 ), 3659-3682, 10.1256/qj.05.97.Hirose, Naoki ; Fukumori, Ichiro ; Kim, Cheol-Ho ; Yoon, Jong-Hwan ( 2005 )., Deep Sea Research Part II : topical Studies in Oceanography, 11 ( 52 ), 1443-1463, 10.1016/j.dsr2.2004.09.034.Chen, J. L. ; Wilson, C. R. ( 2005 )., Geophysical Journal International, 3 ( 160 ), 833-839, 10.1111/j.1365-246X.2005.02522.x.Heimbach, Patrick ; Hill, Chris ; Giering, Ralf ( 2005 )., future Gener. Comput. Syst., 8 ( 21 ), 1356-1371, 10.1016/j.future.2004.11.010.Worcester, Peter F. ; Cornuelle, Bruce D. ; Dzieciuch, Matthew A. ; Munk, Walter H. ( 2005 )., Munk, Walter H, 1-11.Seo, K.-W. ; Wilson, C. R. ( 2005 )., Journal of Geodesy, 7-8 ( 78 ), 442-456, 10.1007/s00190-004-0410-5.Zhou, Y H ; Chen, J L ; Liao, X H ; Wilson, C R ( 2005 )., Geophysical Journal International, 2 ( 162 ), 390-398, 10.1111/j.1365-246X.2005.02694.x.Menemenlis, Dimitris ; Hill, C ; Adcroft, Alistair J. ; Campin, J ; Cheng, B ; Lee, T ; Steele, M ; Wang, O ; Zhang, J ( 2005 )., 8th conference on Polar Meteorology and Oceanography, 1-6.Lee, Tong ; Liu, Timothy W ( 2005 )., Journal of Geophysical Research : Oceans, C5 ( 110 ), 10.1029/2004JC002746.Köhl, Armin ( 2005 )., Journal of Physical Oceanography, 8 ( 35 ), 1455-1472, 10.1175/JPO2767.1.Zhang, Jinlun ( 2005 )., Journal of Geophysical Research, C8 ( 110 ), C08014, 10.1029/2004JC002599.Glazman, Roman E ; Golubev, Yury N ( 2005 )., Journal of Geophysical Research : Oceans, C12 ( 110 ), 10.1029/2005JC002926.Marshall, J ( 2005 )., U.S. CLIVAR VariationsCLIVAR Variations, 2 ( 3 ), 8-14, 10.1029/2005GL022350.Mysak.Žuvela-Aloise, Maja ( 2005 ) .Mechoso, Carlos R ; Cazes-Boezio, Gabriel ; Menemenlis, Dimitris ( 2005 )., Proceedings of the NASA Earth Science Technology Conference 2005, 1-5.Chen, J.L. ; Wilson, C.R. ; Tapley, B.D. ( 2005 )., Journal of Geodesy, 9 ( 78 ), 535-543, 10.1007/s00190-004-0417-y.Wunsch, C ( 2005 )., tellus Series a-Dynamic Meteorology and Oceanography, 1 ( 57 ), 84-99, 10.1111/j.1600-0870.2005.00093.x.Adcroft, Alistair J. ; Hill, Chris ; Campin, Jean-Michael ; Marshall, John ; Heimbach, Patrick ( 2004 )., Proceedings of the ECMWF seminar serial on Numerical Methods Recent developments in numerical methods for atmosphere and ocean model, 139-149.Worcester, Peter F ; Cornuelle, Bruce D ; Dushaw, Brian D. ; Dzieciuch, Matthew A ; Howe, Bruce M ; Menemenlis, Dimitris ; Mercer, James A ; Munk, Walter H ; Spindel, Robert C ; Stammer, Detlef ; Zarnetske, Michael ( 2004 )., Gayana ( Concepción ), 2 ( 68 ), 576-577, 10.4067/S0717-65382004000300047.McKinley, Galen A. ; Follows, Michael J. ; Marshall, J ( 2004 )., Global Biogeochemical Cycles, 2 ( 18 ), 10.1029/2003gb002179.Lee, T ( 2004 )., Geophysical Research Letters, 18 ( 31 ), 10.1029/2004gl020884.Wang, O ; Fukumori, I ; Lee, T ; Johnson, G C ( 2004 )., Geophysical Research Letters, 4 ( 31 ), L04305, 10.1029/2003gl019087.Marshall, J ; Adcroft, Alistair J. ; Campin, Jean-Michel ; Hill, C ; White, A ( 2004 )., Monthly Weather Review, 12 ( 132 ), 2882-2894, 10.1175/mwr2835.1.Vivier, Frédéric ; Maier-Reimer, Ernst ; Tyler, Robert H. ( 2004 )., Geophysical Research Letters, 10 ( 31 ), 1-5, 10.1029/2004GL019804.Lu, Y Y ; Stammer, D ( 2004 )., Journal of Physical Oceanography, 3 ( 34 ), 605-622, 10.1175/2504.1.Chen, J. L. ; Wilson, C. R. ; Tapley, B. D. ; Ries, J. C. ( 2004 )., Geophysical Research Letters, 22 ( 31 ), 10.1029/2004GL021670.Dommenget, D ; Stammer, D ( 2004 )., Journal of Climate, 22 ( 17 ), 4301-4315, 10.1175/3211.1.Gross, R S ; Fukumori, I ; Menemenlis, Dimitris ; Gegout, P ( 2004 )., Journal of Geophysical Research-Solid Earth, B1 ( 109 ), B01406, 10.1029/2003jb002432.Li, X W ; Wunsch, C ( 2004 )., Journal of Geophysical Research-Oceans, C1 ( 109 ), 10.1029/2003jc002014.Wang, O ; Fukumori, I ; Lee, T ; Cheng, B ( 2004 )., Geophysical Research Letters, 15 ( 31 ), 10.1029/2004gl020188.Lee, T ; Fukumori, I ; Tang, B ( 2004 )., Journal of Physical Oceanography, 8 ( 34 ), 1936-1944, 10.1175/1520-0485 ( 2004 ) 034 < 1936 : Taivep > 2.0.Co ; 2.Zerbini, S ; Matonti, F ; Raicich, F ; Richter, B ; vanguard Dam, T ( 2004 )., Geophysical Research Letters, 23 ( 31 ), 10.1029/2004gl021185.Chen, J.-L. ; Wilson, C R ; Hu, X.-G. ; Zhou, Y.-H. ; Tapley, B D ( 2004 )., Journal of Geophysical Research : solid earth, B2 ( 109 ), 10.1029/2003JB002664.Stammer, D ; Ueyoshi, K ; Kohl, A ; Large, W G ; Josey, S A ; Wunsch, C ( 2004 )., Journal of Geophysical Research-Oceans, C5 ( 109 ), 10.1029/2003jc002082.Kohl, A ; Stammer, D ( 2004 )., Journal of Physical Oceanography, 3 ( 34 ), 529-542, 10.1175/2513.1.Adcroft, Alistair J. ; Campin, Jean-Michel ( 2004 )., Ocean Modelling, 3-4 ( 7 ), 269-284, 10.1016/j.ocemod.2003.09.003.Campin, Jean-Michel ; Adcroft, Alistair J. ; Hill, C ; Marshall, J ( 2004 )., Ocean Modelling, 3-4 ( 6 ), 221-244, 10.1016/s1463-5003 ( 03 ) 00009-x.Reddy, P R C ; Salvekar, P S ; Deo, A A ; Ganer, D W ( 2004 )., Geophysical Research Letters, 1 ( 31 ), 10.1029/2003gl018615.Ito, T ; Marshall, J ; Follows, Michael J. ( 2004 )., Global Biogeochemical Cycles, 2 ( 18 ), 10.1029/2003gb002103.Kolaczek, B. ; Nastula, J. ( 2004 )., Proceedings of the Journées 2003 “ Systèmes deréférence spatio-temporels ” : Astrometry, Geodynamics and Solar System Dynamics : from milliarcseconds to microarcseconds, held at IAA, , 22-25 September 2003, 150-155.Hill, C ; Bugnion, V ; Follows, Michael J. ; Marshall, J ( 2004 )., Journal of Geophysical Research-Oceans, C11 ( 109 ), 10.1029/2002jc001598.Wunsch, Carl ; Fukumori, Ichiro ; Lee, Tong ; Menemenlis, Dimitris ; Behringer, David W. ; Rienecker, Michele ; Ponte, Rui M. ( 2004 ) .Howe, Bruce M. ; Cornuelle, Bruce D. ; Dushaw, Brian D. ; Dzieciuch, Matthew A. ; Menemenlis, Dimitris ; Mercer, James A. ; Munk, Walter H. ; Spindel, Robert C. ; Stammer, Detlef ; Worcester, Peter F. ; Zarnetske, M. R. ( 2004 )., OCEANS `04 MTS/IEEE TECHNO-OCEAN, 1504-1506.di Leonardo, Susan M. ; Dickman, S. R. ( 2004 )., Geophysical Journal International, 3 ( 159 ), 863-873, 10.1111/j.1365-246X.2004.02445.x.Nastula, J. ; Gambis, D. ( 2004 )., Journées 2004, Systèmes de référence spatio-temporels, fundamental Astronomy : New concepts and models for eminent accuracy observations, 148-149.Fukumori, I ; Lee, T ; Cheng, B ; Menemenlis, Dimitris ( 2004 )., Journal of Physical Oceanography, 3 ( 34 ), 582-604, 10.1175/2515.1.Biswas, Rupak ( 2004 ) .Kim, S B ; Lee, T ; Fukumori, I ( 2004 )., Geophysical Research Letters, 22 ( 31 ), 10.1029/2004gl021142.Stammer, D ; Theiss, J ( 2004 )., Marine Geodesy, 3-4 ( 27 ), 551-575, 10.1080/01490410490902052.Losch, Martin ; Adcroft, Alistair J. ; Campin, Jean-Michel ( 2004 )., Journal of Physical Oceanography, 1 ( 34 ), 306-319, 10.1175/1520-0485 ( 2004 ) 034 < 0306 : hsacgc > 2.0.co ; 2.Adcroft, Alistair J. ; Campin, Jean-Michel ; Hill, C ; Marshall, J ( 2004 )., Monthly Weather Review, 12 ( 132 ), 2845-2863, 10.1175/mwr2823.1.Chen, J. L. ; Wilson, C. R. ( 2003 )., Geophysical Research Letters, 24 ( 30 ), 10.1029/2003GL018688.Li, X W ; Wunsch, C ( 2003 )., Journal of Geophysical Research-Oceans, C10 ( 108 ), 10.1029/2002jc001765.Stammer, Detlef ( 2003 )., CLIVAR Exchanges, 1 ( 8 ), 14.Lee, Tong ; Fukumori, Ichiro ( 2003 )., Journal of Climate, 24 ( 16 ), 4022-4042, 10.1175/1520-0442 ( 2003 ) 016 < 4022 : IVOTEI > 2.0.CO ; 2.Stammer, D ; Wunsch, C ; Giering, R ; Eckert, C ; Heimbach, P ; Marotzke, J ; Adcroft, Alistair J. ; Hill, C N ; Marshall, J ( 2003 )., Journal of Geophysical Research-Oceans, C1 ( 108 ), 10.1029/2001jc001115.Losch, Martin ; Wunsch, C ( 2003 )., Journal of Atmospheric and Oceanic Technology, 11 ( 20 ), 1685-1696, 10.1175/1520-0426 ( 2003 ) 020 < 1685 : btaacv > 2.0.co ; 2.Gross, R S ; Fukumori, I ; Menemenlis, Dimitris ( 2003 )., Journal of Geophysical Research-Solid Earth, B8 ( 108 ), 10.1029/2002jb002143.Fieguth, P W ; Menemenlis, Dimitris ; Fukumori, I ( 2003 )., Ieee Transactions on Geoscience and Remote Sensing, 1 ( 41 ), 43-51, 10.1109/Tgrs.2002.808058.Hu, X.-G. ; Chen, J.-L. ; Huang, C. ; Tapley, B.D. ; Wilson, C.R. ( 2003 )., Acta Geophysica Sinica, 3 ( 47 ), 484-489.Stammer, Detlef ( 2003 )., CLIVAR Exchanges, 1 ( 8 ), 11-13.Chao, B F ; Au, A Y ; Boy, J P ; Cox, C M ( 2003 )., Geochemistry Geophysics Geosystems ( 4 ), 10.1029/2003gc000589.Howe, B.M. ; Dushaw, Brian D. ; Mercer, J.A. ; Worcester, P.F. ; Colosi, J.A. ; Cornuelle, B.C. ; Dzieciuch, M.A. ; Spindel, R.C. ( 2003 )., 2003 International Conference Physics and Control. Proceedings ( Cat. No.03EX708 ), 111-114, 10.1109/SSC.2003.1224123.Dushaw, Brian D. ( 2003 )., CLIVAR Exchanges, 1 ( 8 ), 15-22.Wunsch, C. ; Stammer, D. ( 2003 )., Earth Gravity Field from Space – From Sensors to Earth Sciences ( 17 ), 147-162, 10.1007/978-94-017-1333-7_13.Legg, S ; Adcroft, Alistair J. ( 2003 )., Journal of Physical Oceanography, 11 ( 33 ), 2224-2246, 10.1175/1520-0485 ( 2003 ) 033 < 2224 : iwbaca > 2.0.co ; 2.Chen, J. L. ; Wilson, C. R. ; Hu, X. G. ; Tapley, B. D. ( 2003 )., Geophysical Research Letters, 20 ( 30 ), 10.1029/2003GL018048.McKinley, Galen A. ; Follows, Michael J. ; Marshall, J ; Fan, S M ( 2003 )., Geophysical Research Letters, 3 ( 30 ), 10.1029/2002gl016044.Ménard, Yves ; Fu, Lee Lueng ; Escudier, P. ; Parisot, F. ; Perbos, J. ; Vincent, P. ; Desai, S. ; Haines, B. ; Kunstmann, G. ( 2003 )., Marine Geodesy, 3-4 ( 26 ), 131-146, 10.1080/714044514.Biastoch, A ; Kase, R H ; Stammer, D B ( 2003 )., Journal of Physical Oceanography, 11 ( 33 ), 2307-2319, 10.1175/1520-0485 ( 2003 ) 033 < 2307 : tsotgr > 2.0.co ; 2.Wunsch, C ; Stammer, D ( 2003 )., Space Science Reviews, 1/2 ( 108 ), 147-162, 10.1023/A:1026298519493.Fieguth, Paul W ; Menemenlis, Dimitris ; Fukumori, Ichiro ( 2002 )., IEEE International Geoscience and Remote Sensing Symposium ( 6 ), 3221-3223, 10.1109/IGARSS.2002.1027136.Halpern, David ( 2002 ) .Stammer, Detlef ; Wunsch, C ; Fukumori, I ; Marshall, J ( 2002 )., Eos, Transactions American Geophysical Union, 27 ( 83 ), 289-295, 10.1029/2002EO000207.Lee, T ; Fukumori, I ; Menemenlis, Dimitris ; Xing, Z F ; Fu, L L ( 2002 )., Journal of Physical Oceanography, 5 ( 32 ), 1404-1429, 10.1175/1520-0485 ( 2002 ) 032 < 1404 : Eotito > 2.0.Co ; 2.Lee, Tong ; Fukumori, Ichiro ; Menemenlis, Dimitris ; Fu, Lee-Lueng ( 2002 )., 2002 International Symposium En Route to GODAE, 2.Heimbach, P ; Hill, C ; Giering, R ( 2002 )., Computational Science-Iccs 2002, Pt Ii, Proceedings ( 2330 ), 1019-1028.McKinley, Galen Anile ( 2002 ) .Fukumori, I ( 2002 )., Monthly Weather Review, 5 ( 130 ), 1370-1383, 10.1175/1520-0493 ( 2002 ) 130 < 1370 : Apkfas > 2.0.Co ; 2.Dickey, J O ; Marcus, S L ; de Viron, O ; Fukumori, I ( 2002 )., Science, 5600 ( 298 ), 1975-1977, 10.1126/Science.1077777.Stammer, D ; Wunsch, C ; Giering, R ; Eckert, C ; Heimbach, P ; Marotzke, J ; Adcroft, Alistair J. ; Hill, C N ; Marshall, J ( 2002 )., Journal of Geophysical Research-Oceans, C9 ( 107 ), 10.1029/2001jc000888.Wang, Shizhen ( 2002 ) .Wunsch, C ( 2002 )., Journal of Geophysical Research-Oceans, C6 ( 107 ), 10.1029/2001jc000797.Menemenlis, Dimitris ; Fu, Lee-Lueng ; Lee, Tong ; Fukumori, Ichiro ( 2002 )., 2002 International Symposium En Route to GODAE, 2.Schröter, Jens ; Fukumori, Ichiro ; Stammer, Detlef ; Wenzel, Manfred ; Wolf-Gladrow, Dieter ( 2002 )., Proceedings “ En road to GODAE ” .Wunsch, C ( 2002 )., Science, 5596 ( 298 ), 1179-+, 10.1126/science.1079329.Wunsch, Carl ( 2002 )., International Geophysics ( bulk 83 ), 233-245, 10.1016/S0074-6142 ( 02 ) 80170-X.Kase, R H ; Biastoch, A ; Stammer, D B ( 2001 )., Geophysical Research Letters, 18 ( 28 ), 3433-3436, 10.1029/2001gl013192.Talley, L D ; Stammer, D ; Fukumori, I ( 2001 )., Ocean Circulation and Climate, 525-545, 10.1016/S0074-6142 ( 01 ) 80137-6.Stammer, D. ; Wunsch, C. ; Fukumori, I. ; Marshall, J. ( 2001 ) .Fukumori, Ichiro ( 2001 )., International Geophysics ( volume 69 ), 237-xvii, 10.1016/S0074-6142 ( 01 ) 80150-9.Ponte, R M ; Stammer, D ; Wunsch, C ( 2001 )., Geophysical Research Letters, 9 ( 28 ), 1775-1778, 10.1029/2000gl011671.Hirose, N ; Fukumori, I ; Zlotnicki, V ; Ponte, R M ( 2001 )., Journal of Geophysical Research-Oceans, C12 ( 106 ), 30987-30995, 10.1029/2000jc000763.Scott, J R ; Marotzke, J ; Adcroft, Alistair J. ( 2001 )., Journal of Geophysical Research-Oceans, C12 ( 106 ), 31141-31154, 10.1029/2000jc000532.Adcroft, Alistair J. ; Scott, J R ; Marotzke, J ( 2001 )., Geophysical Research Letters, 9 ( 28 ), 1735-1738, 10.1029/2000gl012182.Hirose, N ; Fukumori, I ; Ponte, R M ( 2001 )., Geophysical Research Letters, 12 ( 28 ), 2441-2444, 10.1029/2001gl012907.Stammer, D ; Bleck, R ; Boening, C ; DeMey, P ; Hurlburt, H ; Fukumori, I ; Le Provost, C ; Tokmakian, R ; Webb, D ( 2001 )., Observing the Oceans in the 21st Century.Dushaw, Brian D. ; Bold, G ; Chui, C.-S. ; Colosi, J ; Cornuelle, B ; Desaubies, Y ; Dzieciuch, M ; Forbes, A ; Gaillard, F ; Gould, J ; Howe, B ; Lawrence, M ; Lynch, J ; Menemenlis, Dimitris ; Mercer, J ; Mikhaelvsky, P ; Munk, W ; Nakano, I ; Schott, F ; Send, U ; Spindel, R ; Terre, T ; Worcester, P ; Wunsch, C ( 2001 )., Observing the Oceans in the twenty-first Century, 391-418.Dutkiewicz, Stephanie ; Follows, Michael J. ; Marshall, J ; Gregg, W W ( 2001 )., Deep-Sea Research Part Ii-Topical Studies in Oceanography, 10 ( 48 ), 2323-2344, 10.1016/s0967-0645 ( 00 ) 00178-8.Fukumori, I. ; Lee, T. ; Menemenlis, Dimitris ; Fu, L. ; Cheng, B. ; Tang, B. ; Xing, Z. ; Giering, R. ( 2001 )., Fifth Symposium on Integrated Observing Systems, 4.Lee, T ; Boulanger, J P ; Foo, A ; Fu, L L ; Giering, R ( 2000 )., Journal of Geophysical Research-Oceans, C11 ( 105 ), 26063-26087, 10.1029/2000jc900118.Stammer, D ; Chassignet, E ( 2000 )., Oceanography, 2 ( 13 ), 51-56, 10.5670/oceanog.2000.34.Menemenlis, Dimitris ; Chechelnitsky, Michael ( 2000 )., Monthly Weather Review, 3 ( 128 ), 763-778, 10.1175/1520-0493 ( 2000 ) 128 < 0763 : EEFAOG > 2.0.CO ; 2.McKinley, Galen A. ; Follows, Michael J. ; Marshall, John ( 2000 )., Geophysical Research Letters, 18 ( 27 ), 2933-2936, 10.1029/2000gl011492.Stammer, D. ; Davis, R. ; Fu, L.-L. ; Fukumori, I. ; Giering, R. ; Lee, T. ; Marotzke, J. ; Marshall, J. ; Menemenlis, Dimitris ; Niiler, P. ; Wunsch, C. ; Zlotnicki, V. ( 2000 )., CLIVAR Exchanges, 3 ( 5 ), 3-5.Colosi, J A ; Baggeroer, Arthur B ; Birdsall, Theodore G ; Clark, C ; Cornuelle, Bruce D ; Costa, D ; Dushaw, Brian D. ; Dzieciuch, Matthew A ; Forbes, Andrew M G ; Howe, Bruce M ; Menemenlis, Dimitris ; Mercer, James A ; Metzger, K ; Munk, Walter H ; Spindel, Robert C ; Worcester, Peter F ; Wunsch, Carl I ( 1999 )., IEEE J. Ocean. Eng., 2 ( 24 ), 138-155, 10.1109/48.757267.Zhang, K Q ; Marotzke, J ( 1999 )., Journal of Marine Research, 2 ( 57 ), 305-334, 10.1357/002224099321618236.Dushaw, Brian D. ; Howe, Bruce M ; Mercer, James A ; Spindel, Robert C ; Baggeroer, Arthur B ; Menemenlis, Dimitris ; Wunsch, Carl I ; Birdsall, Theodore G ; Metzger, K ; Clark, C ; Colosi, J A ; Curnuelle, B D ; Dzieciuch, Matthew A ; Munk, Walter H ; Worcester, Peter F ; Costa, D ; Forbes, Andrew M G ( 1999 )., IEEE J. Ocean. Eng., 2 ( 24 ), 202-214, 10.1109/48.757271.Fukumori, I ; Raghunath, R ; Fu, L L ; Chao, Y ( 1999 )., Journal of Geophysical Research-Oceans, C11 ( 104 ), 25647-25665, 10.1029/1999jc900193.Hirose, Naoki ; Fukumori, Ichiro ; Yoon, Jong-Hwan ( 1999 )., Journal of Oceanography, 1 ( 55 ), 53-64, 10.1023/A:1007707405711.Marotzke, J ; Giering, R ; Zhang, K Q ; Stammer, D ; Hill, C ; Lee, T ( 1999 )., Journal of Geophysical Research-Oceans, C12 ( 104 ), 29529-29547, 10.1029/1999jc900236.Fieguth, P ; Menemenlis, Dimitris ; Ho, T ; Willsky, A ; Wunsch, C ( 1998 )., Journal of Atmospheric and Oceanic Technology, 2 ( 15 ), 535-546, 10.1175/1520-0426 ( 1998 ) 015 < 0535 : MMADWA > 2.0.CO ; 2.Fukumori, I ; Raghunath, R ; Fu, L L ( 1998 )., Journal of Geophysical Research-Oceans, C3 ( 103 ), 5493-5512, 10.1029/97jc02907.Lee, T ; Marotzke, J ( 1998 )., Journal of Physical Oceanography, 5 ( 28 ), 923-943, 10.1175/1520-0485 ( 1998 ) 028 < 0923 : scomoa > 2.0.co ; 2.Baggeroer, A. B. ; Birdsall, T. G. ; Clark, C. ; Colosi, J. A. ; Cornuelle, B. D. ; Costa, D. ; Dushaw, Brian D. ; Dzieciuch, M. ; Forbes, A. M. G. ; Hill, C. ; Howe, B. M. ; Marshall, J. ; Menemenlis, Dimitris ; Mercer, J. A. ; Metzger, K. ; Munk, W. ; Spindel, R. C. ; Stammer, D. ; Worcester, P. F. ; Wunsch, C. ( 1998 )., Science, 5381 ( 281 ), 1327-1332, 10.1126/science.281.5381.1327.Menemenlis, Dimitris ; Fieguth, Paul W ; Wunsch, Carl I ; Willsky, Alan S ( 1997 )., J. Geophys. Res. C Ocean., C5 ( 102 ), 10573-10584, 10.1029/97JC00697.Marshall, John ; Adcroft, Alistair J. ; Hill, Chris ; Perelman, Lev ; Heisey, Curt ( 1997 )., Journal of Geophysical Research : Oceans, C3 ( 102 ), 5753-5766, 10.1029/96JC02775.Marshall, J ; Hill, C ; Perelman, L ; Adcroft, Alistair J. ( 1997 )., Journal of Geophysical Research-Oceans, C3 ( 102 ), 5733-5752, 10.1029/96jc02776.Menemenlis, Dimitris ; Wunsch, Carl I ( 1997 )., J. Atmos. Ocean. Technol., 6 ( 14 ), 1420-1443, 10.1175/1520-0426 ( 1997 ) 014 < 1420 : LOAOGC > 2.0.CO ; 2.Lee, Tong ; Marotzke, Jochem ( 1997 )., Journal of Geophysical Research : Oceans, C5 ( 102 ), 10585-10602, 10.1029/97JC00464.Menemenlis, Dimitris ; Webb, Tony ; Wunsch, Carl I ; Send, Uwe ; Hill, Christopher N ( 1997 )., Nature, 6617 ( 385 ), 618-621, 10.1038/385618a0.Menemenlis, Dimitris ; Stammer, Detlef ; Wunsch, Carl ; Hill, Chris ; Marshall, John ( 1996 )., The Journal of the Acoustical Society of America, 4 ( 100 ), 2581-2581, 10.1121/1.417523.Fieguth, Paul W ; Willsky, Alan S ; Menemenlis, Dimitris ; Wunsch, Carl I ( 1996 )., ICIP’96 1996 IEEE Int. Conf. Image Process. ( 2 ), 609-612 .