Teleconnection between Winter Arctic Oscillation and Southeast Asian Summer Monsoon in the Pre-Industry Simulation of a Coupled Climate Model  

作　　者：CUI Xue-Dong GAO Yong-Qi GONG Dao-Yi GUO Dong Tore FUREVIK 

机构地区：[1]Nansen-Zhu International Research Centre,Institute of Atmospheric Physics, Chinese Academy of Sciences [2]University of Chinese Academy of Sciences [3]Nansen Environmental and Remote Sensing Center [4]State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University [5]Climate Change Research Center,Chinese Academy of Sciences [6]Geophysical Institute, University of Bergen

出　　处：《Atmospheric and Oceanic Science Letters》2013年第5期349-354,共6页大气和海洋科学快报（英文版）

基　　金：supported by the National Basic Research Program of China(Grant No.2012CB955401);the Strategic Priority Research Program of the Chinese Academy of Sciences(Grant No.XDA05110203);the Center for Climate Dynamics(Project:Integrated Model-data Approach for Understanding Multidecadal Natural Climate Variability)

摘　　要：A 600-year pre-industrial simulation with Bergen Climate Model(BCM)Version 2 is used to investigate the linkage between winter Arctic Oscillation(AO)and the Southeast Asian summer monsoon(SEASM)on the inter-decadal timescale.The results indicate an in-phase relationship between the AO and SEASM with periods of approximately 16–32 and 60–80 years.During the positive phase of winter AO,an anomalous surface anti-cyclonic atmosphere circulation appears over North Pacific in winter.The corresponding anomalies in ocean circulation and surface heat flux,particularly the latent and sensible heat flux,resemble a negative Pacific Decadal Oscillation(PDO)-like sea surface temperature(SST)pattern.The AO-associated PDO-like winter SST can persist into summer and can therefore lead to inter-decadal variability of summer monsoon rainfall in East and Southeast Asia.A 600-year pre-industrial simulation with Bergen Climate Model （BCM） Version 2 is used to investigate the linkage between winter Arctic Oscillation （AO） and the Southeast Asian summer monsoon （SEASM） on the inter-decadal timescale.The results indicate an in-phase relationship between the AO and SEASM with periods of approximately 16-32 and 60-80 years.During the positive phase of winter AO,an anomalous surface anti-cyclonic atmosphere circulation appears over North Pacific in winter.The corresponding anomalies in ocean circulation and surface heat flux,particularly the latent and sensible heat flux,resemble a negative Pacific Decadal Oscillation （PDO）-like sea surface temperature （SST） pattern.The AO-associated PDO-like winter SST can persist into summer and can therefore lead to inter-decadal variability of summer monsoon rainfall in East and Southeast Asia.

关 键 词：Southeast Asian summer monsoon Arctic Oscillation Pacific Decadal Oscillation inter-decadal timescale sea surface temperature 

分 类 号：P425.42[天文地球—大气科学及气象学]