The Evolution of East Asian Summer Monsoon and Drought\Flood Distribution on Eastern China during the Last 539yr

2014 ◽  
Vol 955-959 ◽  
pp. 3093-3097 ◽  
Author(s):  
Qian Li
Keyword(s):  
River Basin ◽  
Summer Monsoon ◽  
South China ◽  
East Asian Summer Monsoon ◽  
North China ◽  
Asian Summer Monsoon ◽  
East Asian ◽  
Huaihe River Basin ◽  
Huaihe River ◽  
Asian Summer

Based on the East Asian summer monsoon index and drought/flood grades during 1470–2008, the coupling relationship between them was analyzed. The results show that the East Asian summer monsoon strength index existed over seven periods. There are 1470-1573, 1574-1771, 1574-1827, 1828-1867, 1867-1828, 1895-1921 and 1922-2008. And the East Asian summer monsoon is stronger in period of 1470-1573, 1772-1827, 1827-1894 and 1922-2008. When the East Asian summer monsoon is weaker, North China and South China are prone to partial drought and yangtze-huaihe River Basin is prone to partial flood. When the East Asian summer monsoon is stronger, North China and South China are prone to partial flood and yangtze-huaihe River Basin is prone to partial drought.

Impact of East Asian summer monsoon advancing and retreating on occurrence of Cnaphalocrocis medinalis Guenée in the main rice-growing regions of south China

2019 ◽  
Vol 39 (24) ◽  
Author(s):  
包云轩 BAO Yunxuan ◽  
王明飞 WANG Mingfei ◽  
陈粲 CHEN Can ◽  
陆明红 LU Minghong ◽  
刘万才 LIU Wancai
Keyword(s):  
Summer Monsoon ◽  
South China ◽  
East Asian Summer Monsoon ◽  
Asian Summer Monsoon ◽  
East Asian ◽  
Cnaphalocrocis Medinalis ◽  
Asian Summer

scholarly journals A Lagrangian Analysis of Water Vapor Sources and Pathways for Precipitation in East China in Different Stages of the East Asian Summer Monsoon

2020 ◽  
Vol 33 (3) ◽  
pp. 977-992 ◽  
Author(s):  
Yi Shi ◽  
Zhihong Jiang ◽  
Zhengyu Liu ◽  
Laurent Li
Keyword(s):  
Water Vapor ◽  
Summer Monsoon ◽  
East Asian Summer Monsoon ◽  
North China ◽  
Asian Summer Monsoon ◽  
East Asian ◽  
Seasonal Migration ◽  
East China ◽  
Terminal Stage ◽  
Asian Summer

AbstractThe Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) platform is used to simulate Lagrangian trajectories of air parcels in East China during the summer monsoon. The investigation includes four distinct stages of the East Asian summer monsoon (EASM) during its seasonal migration from south to north. Correspondingly, the main water vapor channel migrates from the west Pacific Ocean (PO) for the premonsoon in South China (SC) to the Indian Ocean (IO) for the monsoon in SC and in the Yangtze–Huaihe River basin, and finally back to the PO for the terminal stage of monsoon in North China. Further calculations permit us to determine water vapor source regions and water vapor contribution to precipitation in East China. To a large extent, moisture leading to precipitation does not come from the strongest water vapor pathways. For example, the proportions of trajectories from the IO are larger than 25% all of the time, but moisture contributions to actual precipitation are smaller than 10%. This can be explained by the large amount of water vapor lost in the pathways across moisture-losing areas such as the Indian and Indochina Peninsulas. Local water vapor recycling inside East China (EC) contributes significantly to regional precipitation, with contributions mostly over 30%, although the trajectory proportions from subregions in EC are all under 10%. This contribution rate can even exceed 55% for the terminal stage of the monsoon in North China. Such a result provides important guidance to understand the role of land surface conditions in modulating rainfall in North China.

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