%0 Journal Article
%T The Definition of East Asian Monsoon Indices and Their Relationship to Climate in China<br>东亚季风指数的定义及其与中国气候的关系
%A Qiao Yunting
%A Chen Lieting
%A Zhang Qingyun
%A <br>乔云亭
%A 陈烈庭
%A 张庆云
%J 大气科学
%D 2002
%I 
%X A set of new East Asian monsoon indices (EAMI), on the basis of objectively selecting the area defined, have been defined by using the 850 hPa u and v component data reanalyzed by NCAR / NCEP for the period of 1968-1997. Their relationship to each other, seasonal and interannual variability is studied. This set of monsoon indices include the southwest monsoon indices Asw and Sw, southeast monsoon indices A SE and ISE, and north monsoon indices A N and IN, in which A and J in. dicate the area and intensity. The EAMI successfully depict the variability of the southwest monsoon, the southeast monsoon and the north monsoon over China. They have both the relationship and some independence to each other and show considerably seasonal and interannual variability. Further, we analyze the relationship between the EAMI and summer rainfall and winter air temperature in China to evaluate the EAMI's ability in explaining the distribution of climatic anomalies there. The results show that the EAMI corresponds wi th summer rainfall and winter air temperature over China in distinctive patterns. Especially, there is an obvious difference in the effect on summer rainfall anomaly in China be-tween the southwest and southeast monsoons. Therefore, we may point out that it is necessary to distin-guish the southwest monsoon from the southeast monsoon when studying the East Asian summer mon-soon. A single index is not enough to characterize their different variability.
%K East Asian monsoon
%K China
%K climate<br>东亚季风
%K 中国
%K 气候
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=28A2F569B2458C17&jid=46874A5A102033D774D00D819E91CD68&aid=28A81814C7473B4F&yid=C3ACC247184A22C1&vid=96C778EE049EE47D&iid=CA4FD0336C81A37A&sid=CB423C9A71560A74&eid=0D0D661F0B316AD5&journal_id=1006-9895&journal_name=大气科学&referenced_num=35&reference_num=15