【摘要】 采用高精度的POM模式 ,考虑了海底地形、外来流、长江径流、海面风应力、海面热通量等多方面因素的影响 ,模拟了冬季东中国海环流结构。模拟结果显示 :在黄海东部很可能存在两个涡 ,中心分别在124°37′E ,37°N ,124°E ,35°30′N ;东海北部存在一个大型的气旋式涡旋 ,其中心位置在125.1°E ,30.5°N附近 ,该涡旋是由东北向的台湾暖流、西北向的黄海暖流及南下的沿岸流组成的封闭结构 ;日本九州以西黑潮入侵分支形成一涡旋 ,黑潮分支是形成此涡旋的直接动力因素 ,另外地形和冬季盛行的偏北风也对该涡旋的形成有一定正面影响。更多还原

【Abstract】 A three_dimension baroclinic prognostic model on theσ_coordinate is established based on POMto simulate the sum-mertime circulation of the East China Sea,considering the topographic influence,inflowand outflowon the open boundary,Yangtse runoff,heat flux and wind_driven effects on the sea surface.The results show that,there most probably are two eddies,centering on124°37′E,37°N,124°E,35°30′N respectively,at the east of the YellowSea;A large cyclonic eddy exists at the north of the East Sea,which centers on125.1°E,30.5°N.It’s a closed structure conformed by the east_northward Taiwan warm current,west_northward Yellow Sea warm current and southward coastal current;A branch of Kuroshio intrusion engenders an eddy at the west of Jiuzhou island of Japan.It’s the branch of Kuroshio that is the direct dynamic factor of the formation of this eddy,besides,the topographic influence and the northward wind prevailing in winter all effect the eddy’s formation positively.更多还原