Interdecadal change in the connection between Hadley circulation and winter temperature in East Asia

被引：18

作者：

Zhou Botao ^{[1
,2
,3
]}

Wang Huijun ^{[2
]}

机构：

[1] China Meteorol Adm, Natl Climate Ctr, Lab Climate Studies, Beijing 100081, Peoples R China

[2] Chinese Acad Sci, Inst Atmospher Phys, Nansen Zhu Int Ctr, Beijing 100029, Peoples R China

[3] Grad Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

ADVANCES IN ATMOSPHERIC SCIENCES | 2008年 / 25卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Hadley circulation; East Asian temperature; interdecadal change; anticyclonic circulation; Philippines;

D O I：

10.1007/s00376-008-0024-6

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

Based on NCEP/NCAR reanalysis data, the interdecadal variability of Hadley circulation (HC) and its association with East Asian temperature in winter are investigated. Results indicate that the Northern Hemisphere winter HC underwent apparent change in the 1970s, with transition occurring around 1976/77. Along with interdecadal variability of HC, its linkage to surface air temperature (SAT) in East Asia also varied decadally, from weak relations to strong relations. Such a change may be related to the interaction between HC and the atmospheric circulation system over the Philippines, which is associated with the East Asian winter monsoon (EAWM). Before the 1970s, the connection between HC and the anticyclonic circulation around the Philippines was insignificant, but after the late 1970s their linkage entered a strong regime. The intensification of this connection may therefore be responsible for the strong relations between HC and East Asian winter temperatures after the late 1970s.

引用

页码：24 / 30

页数：7