Possible Impact of the Boreal Spring Antarctic Oscillation on the North American Summer Monsoon

作     者：Sun Jian-Qi 

作者机构：Nansen-Zhu International Research Centre Institute of Atmospheric Physics Chinese Academy of Science Beijing 100029 China 

出 版 物：《Atmospheric and Oceanic Science Letters》 (大气和海洋科学快报(英文版))

年 卷 期：2010年第3卷第4期

页      面：232-236页

学科分类：07[理学] 

基　　金：supported by the Key Program of theChinese Academy of Sciences (Grant No. KZCX2-YW-Q03-3) the Special Scientific Research Fund of Meteorological Public Welfare Profession of China (Grant No. GYHY200906018) the Na- tional Basic Research Program of China (Grant No. 2009CB421406) 

主　　题：Antarctic Oscillation North American summer monsoon tropical Atlantic sea surface temperature prediction Bermuda High 

摘      要：This study examined the relationship between the boreal spring(April?May) Antarctic Oscillation(AAO) and the North American summer monsoon(NASM)(July?September) for the period of 1979?*** results show that these two systems are closely *** the spring AAO was stronger than normal,the NASM tended to be weaker,and there was less rainfall over the monsoon *** opposite NASM situation corresponded to a weaker spring *** analysis explored the possible mechanism for the delayed impact of the boreal spring AAO on the *** was found that the tropical Atlantic sea surface temperature(SST) plays an important role in the connection between the two *** variability of the boreal spring AAO can produce anomalous SSTs over the tropical *** SST anomalies can persist from spring to summer and can influence the Bermuda High,affecting water vapor transportation to the monsoon *** these processes,the boreal spring AAO exerts a significantly delayed impact on the amount of NASM ***,information about the boreal spring AAO is valuable for the prediction of the NASM.