Covarying modes of the Pacific SST and northern hemispheric midlatitude atmospheric circulation anomalies during winter

作     者：Yimin Zhu~(a,b,*) Xiuqun Yang~a Qian Xie~b Yongqiang Yu~c ~a Department of A tmospheric Science,Nanjing University,Nanjing 210093,China ~b Institute of Meteorology,PLA University of Science and Technology,Nanjing 211101,China ~c LASG,Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100029,China 

作者机构：Department of Atmospheric Science Nanjing University Nanjing 210093 China Institute of Meteorology PLA University of Science and Technology Nanjing 211101 China LASG Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 China 

出 版 物：《Progress in Natural Science:Materials International》 (自然科学进展·国际材料(英文))

年 卷 期：2008年第18卷第10期

页      面：1261-1270页

核心收录：

学科分类：07[理学] 070601[理学-气象学] 0706[理学-大气科学] 

基　　金：supported by the National Natural Science Foundation of China (Grant Nos.40425009,40730953 and 40675049) National Key Program on Basic Research and Development Projects (Grant No.2004CB418303) The Knowledge Innovation Program of the Chinese Academy of Sciences (IAP07305) Open Project of LASG,Institute of Atmospheric Physics,Chinese Academy of Sciences 

主　　题：Sea surface temperature Atmospheric circulation ENSO Decadal variability 

摘      要：The interannual-to-interdecadal relationship between the Pacific sea surface temperature (SST) and the northern hemispheric midlati- tude’s atmosphere represented by the circumpolar vortex was documented with the global oceanic and atmospheric reanalysis data of recent 50 *** covarying modes of the Pacific SST and northern circumpolar vortex anomalies during winter were examined using the sin- gular value decomposition and wavelet analysis *** is the interannual,ENSO-related mode and the other is the interdecadal, North Pacific SST-related mode with a period of around 20 *** two modes exhibit distinct spatial *** the interannual mode,the SST anomaly is characterized by a typical ENSO pattern with the principal signature in the tropical eastern Pacific and secondary one in the central North Pacific,while the atmospheric anomaly is regional,characterized by a Pacific-North American *** the inter- decadal mode,large SST anomaly is located in the central North Pacific,while the atmospheric anomaly is zonally global,associated with the midlatitute’s standing long-wave *** the central North Pacific is colder,the long-wave is stronger,and vice *** investigations suggest that the interdecadal mode could involve an interaction between two oceans and an atmosphere.