首页|期刊导航|大气和海洋科学快报(英文版)|Two anomalous convective systems in the tropical western Pacific and their influences on the East Asian summer monsoon
大气和海洋科学快报(英文版)2017,Vol.10Issue(4):319-324,6.
Two anomalous convective systems in the tropical western Pacific and their influences on the East Asian summer monsoon
Two anomalous convective systems in the tropical western Pacific and their influences on the East Asian summer monsoon
摘要
Abstract
根据经验正交函数(EOF)分解向外长波辐射资料,发现在热带西太平洋存在两个异常对流系统.除经典的菲律宾对流系统外(PC),在密克罗尼西亚群岛附近还存在另一个对流系统(MC). MC是EOF分解的第一分量,解释的方差要大于PC.两个对流系统均受到热带海表温度异常的调制,其中PC与El Ni(n)o有关,而MC则与夏季中东太平洋海表温度异常有关.两个对流系统都能对东亚夏季风产生影响.一般而言,对流增强(减弱)时,西太平洋副高东退(西伸),强度减弱(增强).PC减弱(增强)时,长江流域到日本的夏季风降水增加(减少).与PC相比,MC对东亚大陆降水的影响较弱.此外,对流减弱的影响要大于对流增强的影响.关键词
对流/密克罗尼西亚/菲律宾/东亚夏季风/西太平洋副热带高压Key words
Convection/Philippines/Micronesia/East Asian summer monsoon/western Pacific subtropical high引用本文复制引用
XUE Feng,DONG Xiao,LIN Ren-Ping..Two anomalous convective systems in the tropical western Pacific and their influences on the East Asian summer monsoon[J].大气和海洋科学快报(英文版),2017,10(4):319-324,6.基金项目
This study was supported by the National Natural Science Foundation of China [grant number 41475052]. ()