國立臺灣師範大學海洋環境科技研究所Oey, L.-Y.Y.-C. HsinC.-R. Wu2014-12-022014-12-022010-04-011616-7341http://rportal.lib.ntnu.edu.tw/handle/20.500.12235/42862Observations indicate that off the northeastern coast of Taiwan a branch of the Kuroshio intrudes farther northward in winter onto the shelf of the East China Sea. We demonstrate that this seasonal shift can be explained solely by winter cooling. Cooling produces downslope flux of dense shelf water that is compensated by shelfward intrusion. Parabathic isopycnals steepen eastward in winter and couple with the cross-shelf topographic slope (the “JEBAR” effect) to balance the enhanced intrusion. The downslope flow also increases vortex stretching and decreases the thickness of the inertial boundary layer, resulting in a Kuroshio that shifts closer to the shelf break.Kuroshio migration Model simulation Cooling JEBAR