2003 vs 2002: A large amplitude wintertime temperature anomaly reversion event and its anomalous atmospheric circulation

作     者：WANG Huijun NZC/LASG, Institute of Atmlspheric Physics, Chinese Academy of Sciences, Beijing 100029. China 

作者机构：Chinese Acad Sci Inst Atmospher Phys NZC LASG Beijing 100029 Peoples R China 

出 版 物：《Chinese Science Bulletin》 (CHINESE SCIENCE BULLETIN)

年 卷 期：2003年第48卷第S2期

页      面：1-4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：国家自然科学基金(40125014) 中国科学院资助项目(KZCX2-SW-133) 国家自然科学基金(40221503) 

主　　题：wintertime temperature anomaly reversion event atmospheric general circulation. NPWPA. 

摘      要：It is revealed that there happened a large am-plitude wintertime temperature anomaly reversion event(LTAR) in Northern Hemisphere high latitude regions andSouth Australia for the year 2003 versus 2002, with the mostnotable change in Eurasia, eastern North America, NorthPacific, and South Australia. The accompanying atmosphericgeneral circulation anomalies are analyzed and the dominantchanges in the circulation arc found out. The anomalouscyclonic eddies over the north Pacific and the anomalousanticyclonic eddies over North Europe that cooperate eachother are mostly linked with the event. Both anomalous eddysystems are connected with the remote teleconnection pat-terns respectively. The research also suggests the existence ofa cross-equator teleconnection pattern, namely, the NorthernPacific-Western Pacific-Australia teleconnection pattern(NPWPA). It is not only related to LTAR, but also associatedwith the temperature transition from cold episode to warmepisode in the year 2003 versus 2002 during Decem-ber-January-February.