Interannual variability of Antarctic Oscillation and its influence on East Asian climate during boreal winter and spring

被引：10

作者：

Fan K. ^{[1
,2
,3
]}

Wang H. ^{[2
]}

机构：

[1] Nansen-Zhu International Research Center, Institute of Atmospheric Physics, Chinese Academy of Sciences

[2] Department of Atmospheric Science, Yunnan University

[3] Graduate University of the Chinese Academy of Sciences

来源：

Science in China Series D | 2006年 / 49卷 / 5期

基金：

中国国家自然科学基金;

关键词：

Antarctic Oscillation; Eurasian west wind; Mean meridional circulation; Meridional teleconnection;

D O I：

10.1007/s11430-006-0554-7

中图分类号：

学科分类号：

摘要：

The interannual variability of Antarctic Oscillation (AAO) and its influence on East Asian climate during both boreal winter and spring are addressed. The results show that the positive AAO anomaly decreases the cold activity over East Asia during both boreal winter and spring. AAO-related barotropic meridional teleconnection from Antarctic to Arctic is found through analysis of mean meridional circulations. This meridional teleconnection is remarkable over Eurasia during boreal winter and over the Pacific Ocean during boreal spring. The results also show that zonal mean zonal wind at high latitudes in Southern Hemisphere has well positive correlation with that of Eurasia during boreal winter and has negative correlation with Pacific North American teleconnection (PNA) during boreal spring, which again display the meridional teleconnection. Thus, local meridional teleconnection is a possible linkage for interaction of circulations at mid-high latitudes between both hemispheres. © Science in China Press 2006.

引用

页码：554 / 560

页数：6

共 22 条

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