|关键词: 东海 南黄海 夏季 斜压模式 环流 上升流
|BAROCLINC MODEL OF SUMMER CIRCULATION IN THE EAST CHINA SEA AND SOUTH YELLOW SEA
Geophysical Department, Beijing University, Beijing 100871
|Based on a three-dimensional weakly nonlinear theory of Lagrangian residual current, this study’s diagnostic numerical calculation of summer circulation in the East China Sea and the Yellow Sea using the velocity-spilitting method and considering the Kuroshio and the Changjiang River runoff showed that the Taiwan-Tsushima Warm Current System is the main current system in the continental shelf. The sources of the Tsushima Warm Current entering the Korea Strait are the Taiwan Warm Current, the Kuroshio, and the Mixing Water of the East China Sea and West Korea Coastal Current. The source of the Yellow Sea Warm Current is the Mixing Water of the East China Sea, but partly coming from the Tsushima Warm Current in the upper layer. The main areas where upwelling takes place are revealed to be in the Zhejiang and Fujian coastal sea, the mouth of the Changjiang River, the northeastern part of the East China Sea and the continental slope. The area of the upwelling and the downwelling along the continental slope emerge alternately, and the area located on the PN- section is the upwelling area in the upper layer.
|Key words: East China Sea, South Yellow Sea, Summer, Baroclinic Model, Circulation, Upwelling