%0 Journal Article
%T Weakening of Indian Summer Monsoon in Recent Decades
%A WU Bingyi
%A <br>WU
%A Bingyi
%J 大气科学进展
%D 2005
%I 
%X The analysis of 43 years of NCEP-NCAR reanalysis data and station observations reveals the connections between tropospheric temperature variations and the weakening of the Indian summer monsoon circulation. The Indian summer monsoon variation is strongly linked to tropospheric temperature over East Asia, showing significant positive correlations of mean tropospheric temperature with all-Indian summer rainfall and the monsoon circulation intensity. The result shows that Indian summer monsoon circulation underwent two weakening processes in recent decades. The first occurred in circa the mid-1960s, and the other occurred in circa the late 1970s. The finding indicates that the mean tropospheric temperature may play a crucial role in the weakening of the Indian summer monsoon intensity via changing land-sea thermal contrast. The role of the tropospheric temperature contrast between East Asia and the tropical area from the eastern Indian Ocean to the tropical western Pacific is to weaken the Indian summer monsoon circulation.
%K Indian summer monsoon
%K tropospheric temperature
%K East Asia
%K land-sea thermal contrast<br>印度洋
%K 夏季季风
%K 对流层温度
%K 亚洲东部
%K 大陆-海洋热比较
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=28A2F569B2458C17&jid=5434AFBF6CB6E7E8D67733B541F211C7&aid=D0B434403ABE44E380315573F53CAB93&yid=2DD7160C83D0ACED&vid=BC12EA701C895178&iid=CA4FD0336C81A37A&sid=659D3B06EBF534A7&eid=771469D9D58C34FF&journal_id=0256-1530&journal_name=大气科学进展&referenced_num=10&reference_num=90