Annual and interannual variations of large-scale circulation over the tropics as revealed from OLR data

作     者：Xie An, Chen Longxun and Takio Murakami Peking University, Beijing, ChinaAcademy of Meteorological Science, SMA, Beijing, ChinaUniversity of Hawaii, Honolulu, Hawaii, U.S.A. 

作者机构：Peking Univ. Beijing China China 

出 版 物：《Acta Oceanologica Sinica》 (海洋学报(英文版))

年 卷 期：1988年第7卷第2期

页      面：195-202页

学科分类：0710[理学-生物学] 0908[农学-水产] 07[理学] 0707[理学-海洋科学] 

主　　题：OLR over 

摘      要：In this study, the outgoing longwave radiation (OLR) data of eight years have been used to investigate the annual and interannual variations of large-scale circulation over the tropics. The results of EOF analysis indicate that the first three eigenvectors reflect the essential features in OLR annual variation. However, they contribute little to the interannual change. In comparison, the fourth to the sixth components have very large year-to-year variations. The pronounced anomalies are located over the tropics with east-west dipole pattern. It implies that ENSO events are related closely to the variation of the Walker circulation.