Variation of the Kuroshio intrusion pathways northeast of Taiwan using the Lagrangian method  

作　　者：LIU XiaoHui CHEN DaKe DONG ChangMing HE HaiLun 

机构地区：[1]School of Aeronautics and Astronautics, Zhejiang University [2]State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography [3]School of Marine Sciences, Nanjing University of Information Science and Technology

出　　处：《Science China Earth Sciences》2016年第2期268-280,共13页中国科学（地球科学英文版）

基　　金：supported by the National Basic Research Program of China(Grant Nos.2013CB430302&2014CB-745000);the National Natural Science Foundation of China(Grant Nos.41321004;91128204;41106020;41476022&41490643);the Scientific Research Fund of the Second Institute of Oceanography;SOA(Grant No.JT1205);the National Program on Global Change and Air-Sea Interaction(Grant No.GASI-03-IPOVAI-05)

摘　　要：The seasonal variations of the Kuroshio intrusion pathways northeast of Taiwan were investigated using observational data from satellite-tracked sea surface drifters and a numerical particle-tracking experiment based on a high-resolution numerical ocean model. The results of sea surface drifter data observed from 1989 to 2013 indicate that the Kuroshio surface intrusion follows two distinct pathways: one is a northwestward intrusion along the northern coast of Taiwan Island, and the other is a direct intrusion near the turn of the shelf break. The former occurs primarily in the winter, while the latter exists year round. A particle-tracking experiment in the high-resolution numerical model reproduces the two observed intrusion paths by the sea surface drifters. The three-dimensional structure of the Kuroshio intrusion is revealed by the model results. The pathways, features and possible dynamic mechanisms of the subsurface intrusion are also discussed.The seasonal variations of the Kuroshio intrusion pathways northeast of Taiwan were investigated using observa- tional data from satellite-tracked sea surface drifters and a numerical particle-tracking experiment based on a high-resolution numerical ocean model. The results of sea surface drifter data observed from 1989 to 2013 indicate that the Kuroshio surface intrusion follows two distinct pathways： one is a northwestward intrusion along the northern coast of Taiwan Island, and the other is a direct intrusion near the turn of the shelf break. The former occurs primarily in the winter, while the latter exists year round. A particle-tracking experiment in the high-resolution numerical model reproduces the two observed intrusion paths by the sea surface drifters. The three-dimensional structure of the Kuroshio intrusion is revealed by the model results. The path- ways, features and possible dynamic mechanisms of the subsurface intrusion are also discussed.

关 键 词：Kuroshio intrusion Lagrangian method Sea surface drifter ROMS model 

分 类 号：P731.27[天文地球—海洋科学]