北太平洋风应力场变异规律及其与黑潮大弯曲和El—Nino的联系  

THE VARIATION OF WIND STRESS IN NORTHERN PACIFIC AND ITS RELATIONSHIP TO KUROSHIO MEADER AND El-Nino EVENT

作　　者：徐启春[1] 王志联[1] 刘秦玉[1] 

机构地区：[1]青岛海洋大学物理海洋研究所

出　　处：《青岛海洋大学学报（自然科学版）》1993年第3期21-28,共8页Journal of Ocean University of Qingdao

基　　金：国家自然科学基金4880229

摘　　要：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。In the paper, COADS (Comprehensive Ocean-Atmosphere Data System) is used to calculate the wind stress over sea surface in the northern and equatorial Pacific from 1949-1979. Through vector EOF analysis of anomaly wind stress, we obtain several modes of anomaly wind stress. After the distribution characteristics and variation of these modes were analysed, it is found that the first and second modes of anomaly have an important influence on the Kuroshio meander and El - Nino event respectively. At the end of this paper, the physical mechanism of interaction between the Kuroshio meander and wind stress has been discussed. This will supply a possible for tendency forecast of Kuroshio meander.

关 键 词：北太平洋 黑潮 厄尔尼诺 风 应力场 

分 类 号：P732.6[天文地球—海洋科学]