%0 Journal Article
%T Variation of Tibetan Plateau Summer Monsoon and Its Effect on Precipitation in East China<br>近几十年青藏高原夏季风变化趋势及其对中国东部降水的影响
%A Hua Wei
%A Fan Guangzhou
%A WANG Bingyun
%A <br>华维
%A 范广洲
%A 王炳赟
%J 大气科学
%D 2012
%I 
%X Based on the NCEP/NCAR, NCEP/DOE and ERA40 reanalysis data and the monthly precipitation data from 596 stations of China, the variation of the Tibetan Plateau (TP) summer monsoon and its impact on precipitation in eastern China are investigated by using the correlation analysis, the wavelet analysis, and the cross-spectral analysis. The results show that the plateau summer monsoon exhibits the strong interannual and long-term variability. It also shows an obviously upward trend during 1958-2010. The further analysis reveals that the abnormal enhancement of the plateau summer monsoon changes the Asia atmospheric circulation and then weakens the Asian summer monsoon. This leads to an increase of monsoon rainfall over the middle-lower reaches of the Yangtze River and a decrease over North China and South China. The strengthening of the plateau summer monsoon over the past 50 years may be related to the enhancement of thermal difference between the TP and its surrounding plains in the middle-upper troposphere (especially of the increase of thermal difference between the TP and the plain in eastern China).
%K Tibetan Plateau summer monsoon
%K East Asian summer monsoon
%K South Asian summer monsoon
%K thermal difference<br>高原夏季风
%K 东亚夏季风
%K 南亚夏季风
%K 热力差异
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=28A2F569B2458C17&jid=46874A5A102033D774D00D819E91CD68&aid=062CD16C6E5806F5F3D1067CFFE08DD7&yid=99E9153A83D4CB11&vid=933658645952ED9F&iid=E158A972A605785F&sid=141C24EC1980F602&eid=89FA2FA9891FF61E&journal_id=1006-9895&journal_name=大气科学&referenced_num=0&reference_num=40