利用COADS资料,计算北太平洋(包括赤道海区)1949—1979年海表面风应力,对其距平场进行矢量场的EOF分解,得到几个主要的距平风应力模态(EOF1—3)。分析了各自的时空分布特征,分析发现,风应力距平场的EOF1和EOF2模态分别对黑潮大弯曲和E1—Nino事件有重要影响,并讨论了其影响过程,为黑潮大弯曲预报的可能性提供了依据。 By using COADS data, the sea surface wind stress in the North Pacific Ocean (including the equatorial sea area) from 1949 to 1979 was calculated, and the EOF decomposition of the vector field in the anomaly field was conducted. Several major anomalous wind stress modes (EOF1-3) were obtained. The analysis of their spatial and temporal distribution characteristics shows that the EOF1 and EOF2 modes of the wind stress anomalies have an important impact on the large Kuroshio and E1-Nino events, respectively, and their effects are discussed. Provided the basis for the possibility.