东海黑潮混沌特征的数值分析  

Numerical Analysis of Kuroshio Chaos

作　　者：山峰[1] 林霄沛[1] 吴德星[1] 

机构地区：[1]中国海洋大学物理海洋研究所物理海洋实验室,青岛266003

出　　处：《青岛海洋大学学报（自然科学版）》2003年第1期15-21,共7页Journal of Ocean University of Qingdao

基　　金：教育部科学技术重点项目 ( 990 75);国家重点基础研究发展规划项目 ( G19990 4 380 4 )资助

摘　　要：以英国 OCCAM(The Ocean Circulation and Climate Advanced Modeling Project)全球环流模式的 1 994年计算结果作为初始场和边界条件 ,用 POM模式 ,对东中国海黑潮季节变化进行了数值模拟 ,特别注意了海水运动的混沌特点和质点移动轨迹。研究结果表明 :东海黑潮区地形引起的黑潮流剪切是导致混沌的主要原因 ;东海黑潮区混沌运动有明显的季节变化 ;黑潮主轴区基本是输运的屏障区。Based on the calculated data from the Ocean Circulation and Climate Advanced Modeling Project and using the POM model, the seasonal variation of the Kuroshio in the East China Sea was studied. The POM model was forced with water flux and wind stress. Special attention was paid to the chaos and particle traces in this area. The results show that disturbance arising from the shear stress within the Kuroshio area is the main reason for the occurrence of chaos and there exists an obvious seasonal variation of chaos in the region of the Kuroshio. The results also show that the Kuroshio plays the role of a barrier in the mass transport from one side to the other.

关 键 词：东海 黑潮 混沌 季节变化 LYAPUNOV指数 海水运动 

分 类 号：P731.27[天文地球—海洋科学]