地形对东海黑潮锋面弯曲影响研究  

Effects of Topography on Kuroshio Frontal Meanders in the East China Sea

作　　者：罗义勇[1] 吴德星[1] 林霄沛[1] 

机构地区：[1]青岛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）》2001年第3期305-312,共8页Journal of Ocean University of Qingdao

基　　金：教育部科学技术重点项目!(990 75 )资助

摘　　要：作者运用简化的η坐标 POM模式数值研究了地形对东海黑潮锋面弯曲的产生与成长的影响。平底时 ,小扰动迅速发展导致锋面出现大弯曲。考虑到地形因素和黑潮流核远离陆架的情况 ,因其锋区正处在陡的陆坡之上 ,斜压不稳定被减小 ,其锋面不会出现如观测所示的弯曲。结果表明 ,在该实验条件下 。Numerical studies of the Kuroshio frontal meanders in the East China Sea are carried out by using the η coordinate POM model with the emphasis on the effects of cross stream topography .The results show that perturbations grow in amplitude and form large frontal meanders for the flat bottom condition. After incorporating the topography, when the flow core of the Kuroshio located away from the continental shelf, the continental slope acts as a stable factor and all perturbations move out of the domain before developing into finite amplitude meanders.

关 键 词：东海黑潮 地形 锋面弯曲 流速结构 POM模式 

分 类 号：P731.27[天文地球—海洋科学]