Simulated change in the interannual variability of South Asian summer monsoon in the 21st century

2010 ◽  
Vol 27 (5) ◽  
pp. 992-1002 ◽  
Author(s):  
Yuanhai Fu ◽  
Riyu Lu
Keyword(s):  
Interannual Variability ◽  
South Asian ◽  
Summer Monsoon ◽  
21St Century ◽  
Asian Summer Monsoon ◽  
South Asian Summer Monsoon ◽  
Asian Summer

scholarly journals Interannual Variability in the Large-Scale Dynamics of the South Asian Summer Monsoon

2015 ◽  
Vol 28 (9) ◽  
pp. 3731-3750 ◽  
Author(s):  
Jennifer M. Walker ◽  
Simona Bordoni ◽  
Tapio Schneider
Keyword(s):  
Interannual Variability ◽  
South Asian ◽  
Summer Monsoon ◽  
Large Scale ◽  
Asian Summer Monsoon ◽  
Sea Breeze ◽  
South Asian Summer Monsoon ◽  
The South ◽  
Near Surface ◽  
Asian Summer

Abstract This study identifies coherent and robust large-scale atmospheric patterns of interannual variability of the South Asian summer monsoon (SASM) in observational data. A decomposition of the water vapor budget into dynamic and thermodynamic components shows that interannual variability of SASM net precipitation (P − E) is primarily caused by variations in winds rather than in moisture. Linear regression analyses reveal that strong monsoons are distinguished from weak monsoons by a northward expansion of the cross-equatorial monsoonal circulation, with increased precipitation in the ascending branch. Interestingly, and in disagreement with the view of monsoons as large-scale sea-breeze circulations, strong monsoons are associated with a decreased meridional gradient in the near-surface atmospheric temperature in the SASM region. Teleconnections exist from the SASM region to the Southern Hemisphere, whose midlatitude poleward eddy energy flux correlates with monsoon strength. Possible implications of these teleconnection patterns for understanding SASM interannual variability are discussed.

scholarly journals Suppression of south Asian summer monsoon precipitation in the 21st century

2009 ◽  
Vol 36 (1) ◽  
Author(s):  
Moetasim Ashfaq ◽  
Ying Shi ◽  
Wen-wen Tung ◽  
Robert J. Trapp ◽  
Xueijie Gao ◽  
...  
Keyword(s):  
South Asian ◽  
Summer Monsoon ◽  
21St Century ◽  
Asian Summer Monsoon ◽  
Monsoon Precipitation ◽  
South Asian Summer Monsoon ◽  
Asian Summer

scholarly journals Sources of errors in the simulation of south Asian summer monsoon in the CMIP5 GCMs

2016 ◽  
Vol 49 (1-2) ◽  
pp. 193-223 ◽  
Author(s):  
Moetasim Ashfaq ◽  
Deeksha Rastogi ◽  
Rui Mei ◽  
Danielle Touma ◽  
L. Ruby Leung
Keyword(s):  
South Asian ◽  
Summer Monsoon ◽  
Asian Summer Monsoon ◽  
South Asian Summer Monsoon ◽  
Asian Summer ◽  
Cmip5 Gcms

scholarly journals Remote and local drivers of Pleistocene South Asian summer monsoon precipitation: A test for future predictions

2021 ◽  
Vol 7 (23) ◽  
pp. eabg3848
Author(s):  
Steven C. Clemens ◽  
Masanobu Yamamoto ◽  
Kaustubh Thirumalai ◽  
Liviu Giosan ◽  
Julie N. Richey ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
South Asian ◽  
Summer Monsoon ◽  
Large Scale ◽  
Asian Summer Monsoon ◽  
Precipitation Amount ◽  
Monsoon Precipitation ◽  
Orbital Eccentricity ◽  
South Asian Summer Monsoon ◽  
Asian Summer

South Asian precipitation amount and extreme variability are predicted to increase due to thermodynamic effects of increased 21st-century greenhouse gases, accompanied by an increased supply of moisture from the southern hemisphere Indian Ocean. We reconstructed South Asian summer monsoon precipitation and runoff into the Bay of Bengal to assess the extent to which these factors also operated in the Pleistocene, a time of large-scale natural changes in carbon dioxide and ice volume. South Asian precipitation and runoff are strongly coherent with, and lag, atmospheric carbon dioxide changes at Earth’s orbital eccentricity, obliquity, and precession bands and are closely tied to cross-equatorial wind strength at the precession band. We find that the projected monsoon response to ongoing, rapid high-latitude ice melt and rising carbon dioxide levels is fully consistent with dynamics of the past 0.9 million years.

scholarly journals Anthropogenically Forced Decadal Change of South Asian Summer Monsoon Across the Mid‐1990s

2019 ◽  
Vol 124 (2) ◽  
pp. 806-824 ◽  
Author(s):  
Feifei Luo ◽  
Buwen Dong ◽  
Fangxing Tian ◽  
Shuanglin Li
Keyword(s):  
South Asian ◽  
Summer Monsoon ◽  
Asian Summer Monsoon ◽  
Decadal Change ◽  
South Asian Summer Monsoon ◽  
Asian Summer
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