An index measuring the interannual variation of the East Asian summer monsoon—The EAP index

被引：1

作者：

Gang Huang

机构：

[1] Chinese Academy of Sciences,RCE

来源：

Advances in Atmospheric Sciences | 2004年 / 21卷

关键词：

East Asia/Pacific index; East Asian summer monsoon; interannual variability;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Based on the EAP (East Asia/Pacific) teleconnection in the summer circulation anomalies over the Northern Hemisphere, an index measuring the strength of the East Asian summer monsoon, i.e., the socalled EAP index, is defined in this paper. From the analyses of observed data, it is clearly shown that the EAP index defined in this study can well describe the interannual variability of summer rainfall and surface air temperature in East Asia, especially in the Yangtze River valley and the Huaihe River valley, Korea, and Japan. Moreover, this index can also reflect the interannual variability of the East Asian summer monsoon system including the monsoon horizontal circulation and the vertical-meridional circulation cell over East Asia. From the composite analyses of climate and monsoon circulation anomalies for high EAP index and for low EAP index, respectively, it is well demonstrated that the EAP index proposed in this study can well measure the strength of the East Asian summer monsoon.

引用

页码：41 / 52

页数：11

共 28 条

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