赤道东太平洋海温异常对夏季东亚大气环流的影响  

Influence of Equatorial Eastern Pacific SSTA on Summer Circulation over Eastern Asia

作　　者：彭加毅[1] 孙照渤[1] 

机构地区：[1]南京气象学院大气科学系,南京210044

出　　处：《南京气象学院学报》2001年第1期37-43,共7页Journal of Nanjing Institute of Meteorology

基　　金：国家重点基础研究发展规划项目!G19980 40 90 1- 3;南京大学博士后基金联合资助

摘　　要：采用统计诊断和数值试验方法讨论了赤道东太平洋海温异常对东亚夏季大气环流异常的影响 ,研究表明赤道东太平洋海温的持续异常 ,引起南海 -菲律宾附近地区对流异常的持续 ,从而导致东亚大气环流的持续异常 ;同时指出春季赤道东太平洋海温异常和夏季海温异常对夏季东亚大气环流的影响并非是线性叠加 。The influence of equatorial eastern Pacific SSTA on summer circulation in east Asia is studied with the aid of statistical method and model test.On account of the sustained anomaly of the equatorial eastern Pacific SST,the abnormal convection is maintained around the South China Sea to the Philippines,which leads to the continued anomaly of summer circulation in east Asia.The influence on summer circulation in east Asia of the spring and summer SSTA in the equatorial eastern Pacific is not simply a linear superposition,but a nonlinear interaction on a seasonal scale.

关 键 词：赤道 东太平洋 海温异常 东亚大气环流 非线性相互作用 数值试验 

分 类 号：P732.6[天文地球—海洋科学] P434