大洋间海表温度遥联与中国冬季气温的关系  

The teleconnection of sea surface temperature and its relation with China winter temperature

作　　者：严厉[1] 王盘兴[1] 管兆勇[1] 杨晓苑[1] 

机构地区：[1]南京信息工程大学,南京210044

出　　处：《气象科学》2008年第2期133-138,共6页Journal of the Meteorological Sciences

基　　金：国家自然科学基金重点项目;青藏高原热源结构和振荡特征及其传播和影响机制(40633018)

摘　　要：利用SVD方法,在年代际和年际尺度上研究了各季北大西洋和北太平洋海表温度的遥相关关系,给出了冬季两个时间尺度上的遥联指数I,并分析了它们与同期中国冬季气温及亚太冬季风的相关关系。结果表明:北大西洋和北太平洋在两个时间尺度上的海表温度遥联均与同期中国冬季气温相关;特别在年代际尺度上两大洋海表温度遥联与我国河套以南及长江中游地区冬季气温有显著正相关。其影响途径可能是两大洋海温异常引起亚太冬季风异常、继而引起我国冬季气温异常。The four seasons＇significant teleconnection at both inter-decadal and inter-annual time scales of sea surface temperature anomaly between North Atlantic and North Pacific are studied using the diagnostic method of SVD （Singular Value Decomposition）. The Teleconnection Index （I） of sea surface temperature in winter is constructed. The correlation of Teleconnection Index and China winter temperature and the correlation of Teleconnection Index and contemporary Asia-Pacific winter monsoon are analyzed. The results show that the SST teleconnection pattern between North Pacific and North Atlantic can cause the anomaly of China winter temperature at both time scales, and the inter-decadal teleconnection has a remarkable correlation with the temperature of the southern region to The Great Bend of the Huanghe River and the middle reaches of the Yangtse River. Sea surface temperature anomaly of the two oceans may influence China winter temperature via winter Asia-Pacific monsoon.

关 键 词：北大西洋和北太平洋 时间尺度 海表温度 中国冬季气温 亚太冬季风 

分 类 号：P434.4[天文地球—大气科学及气象学]