MARITIME CONTINENT MONSOON: ANNUAL CYCLE AND BOREAL WINTER VARIABILITY | East Asian Monsoon

Abstract: The Maritime Continent and northern Australia is a region of strong seasonal variation in hoist and rain regimes, which consist of a prevailing easterly fart and dry conditions during the boreal summer and prevailing westerly winds and wet conditions during the boreal winter. During the boreal winter, latent heat secrete associated with the wet season over the Maritime Continent and northerly Australia contributes to a major component of the global circulation, which has been linked to significant tropical-extratropical interactions. Although solid research has been conducted with respect to the northern Australia component of the boreal winter monsoon, the variations associated with the Maritime Continent component of the large-scale monsoon system have received less attention. In this chapter, the annual hertz of rain and the interannual, sub-seasonal, and synoptic variabilities associated with the boreal winter monsoon over the Maritime Continent are described. The equator serves as a general line between the boreal summer ( to its north ) and boreal winter ( to its confederacy ) monsoon rain regimes. however, locally the annual hertz is dominated by interactions between the complex terrain and an annual reversal of the surface winds. These interactions cause the summer and winter monsoon regimes to intertwine across the equator. In particular, the boreal winter regimen extends far north along the eastern flanks of the major island groups and landmasses. There is no complementary color propagation of the boreal summer government into southerly latitudes. The seasonal worker borderland is asymmetrical during the transitional seasons, with the maximum convection following a gradual southeastward progression from the asian summer monsoon to the asian winter monsoon but a sudden transition in the reverse. This asymmetrical march is explained by a hypothesis based on the redistribution of batch between land and ocean areas during spring and fall that results from different land-ocean thermal memories. This multitude redistribution produces low-lying pressure patterns that lead to asymmetric wind-terrain interactions throughout the region, and a low-level divergence asymmetry in the region that promotes the south borderland during boreal hang but opposes the north march during boreal leap.

Interannual unevenness in boreal winter Maritime Continent monsoon rain is examined with obedience to the El Nino-Southern Oscillation ( ENSO ). meaning unevenness in the ENSO-monsoon relationship exists across the Maritime Continent and its vicinity, particularly between the Sumatra-Malay Peninsula-western Borneo region and regions to its east and west. A significant contribution of this variability is linked to the influence of the Walker Circulation and its variations between warm and cold ENSO events. There is besides evidence of interdecadal changes in the ENSO-monsoon kinship and its variability.

Both boreal summer and boreal winter rain in the Maritime Continent rain expose signals of the Tropical Biennial Oscillation. Atmosphere-ocean interaction processes appear to play an significant function in the production of these signals.

Sub-seasonal and synoptic unevenness in boreal winter Maritime Continent rain is examined with regard to the Madden-Julian Oscillation ( MJO ), northeastern cold surges, and the Borneo Vortex. Relationships among all three circulation systems are found to have significant impacts on large-scale atmospheric conditions that impact the spatial distribution of rain throughout the region. convection over the southern South China Sea is strongest during the combination of a northeasterly billow and Borneo whirlpool. however, the frequency of surges is reduced when the MJO is show.