基于拉格朗日方法对黑潮路径的数值模拟-海洋预报

基于拉格朗日方法对黑潮路径的数值模拟

单位：国防科技大学气象海洋学院, 江苏南京 211101

分类号：P731.27

出版年·卷·期（页码）：2019·36·第六期（22-28）

摘要：

利用ROMS模式和拉格朗日方法，研究了完整的黑潮路径及其特点。首先通过比较拉格朗日粒子的概率分布与HYCOM再分析资料和OSCAR海流反演产品统计的流场结构，验证了拉格朗日方法对黑潮路径的模拟效果。在此基础上，通过分析拉格朗日粒子的轨迹研究了黑潮路径的主要特征，发现黑潮入侵东海大陆架主要包括台湾东海岸北向路径、菲律宾离岸气旋式环流路径以及南海-台湾海峡北向路径3条主要路径，同时得到了黑潮路径主要通道上的净流量分布。

In this paper, the entire Kuroshio path and its characteristics are studied by Lagrangian method and ROMS model simulation. Firstly, by comparing the probability distribution of Lagrangian particles with the current pattern of HYCOM reanalysis data and OSCAR current satellite-derived product, the simulation effect of Lagrangian method on Kuroshio path is verified. On this basis, the main characteristics of the Kuroshio path are studied by analyzing the trajectories of Lagrangian particles. It shows that the intrusion of Kuroshio into the continental shelf of the East China Sea includes three main paths:the northward path of the east coast of Taiwan, the offshore cyclonic circulation path of the Philippines and the northward path of the South China Sea-Taiwan Strait. In addition, the net volume transport along the main channel of the Kuroshio is given.

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