Impact of the central Pacific zonal wind divergence and convergence on the central Pacific El Nio event  

作　　者：ZUO Tao CHEN Jinnian WANG Hongna 

机构地区：[1]Institute of Oceanology,Chinese Academy of Sciences [2]Key Laboratory of Ocean Circulation and Waves,Chinese Academy of Sciences [3]University of Chinese Academy of Sciences

出　　处：《Acta Oceanologica Sinica》2014年第11期85-89,共5页海洋学报（英文版）

基　　金：The National Basic Research Program(973 Program)of China under contract No.2012CB417402;the Strategic Priority Research Program of the Chinese Academy of Sciences under contract No.XDA11010102

摘　　要：The central Pacific（CP） zonal wind divergence and convergence indices are defined, and the forming mechanism of CP El Nio（La Nia） events is discussed preliminarily. The results show that the divergence and convergence of the zonal wind anomaly（ZWA） are the key process in the forming of CP El Nio（La Nia） events. A correlation analysis between the central Pacific zonal wind divergence and convergence indices and central Pacific El Nio indices indicates that there is a remarkable lag correlation between them. The central Pacific zonal wind divergence and convergence indices can be used to predict the CP events. Based on these results, a linear regression equation is obtained to predict the CP El Nio（La Nia） events 5 months ahead.The central Pacific（CP） zonal wind divergence and convergence indices are defined, and the forming mechanism of CP El Nio（La Nia） events is discussed preliminarily. The results show that the divergence and convergence of the zonal wind anomaly（ZWA） are the key process in the forming of CP El Nio（La Nia） events. A correlation analysis between the central Pacific zonal wind divergence and convergence indices and central Pacific El Nio indices indicates that there is a remarkable lag correlation between them. The central Pacific zonal wind divergence and convergence indices can be used to predict the CP events. Based on these results, a linear regression equation is obtained to predict the CP El Nio（La Nia） events 5 months ahead.

关 键 词：TAO observation data central Pacific El Nino La Nina zonal wind divergent and convergent indices 

分 类 号：P732[天文地球—海洋科学]