南黄海环流的若干特征  

Some features of circulation in the southern Huanghai Sea

作　　者：汤毓祥[1] 邹娥梅[1] 李兴宰[2] 李载学[2] 

机构地区：[1]国家海洋局海洋环境科学与数值模拟重点实验室 [2]韩国海洋研究所

出　　处：《海洋学报》2000年第1期1-16,共16页

基　　金：国家自然科学基金!49676283;国家自然科学重点基金!49736140;国家海洋局联合资助

摘　　要：主要根据近几年来中韩黄海水循环动力学合作调查结果，结合有关历史资料，对南黄海环流的若干特征进行了分析．所得主要认识为：（１）南黄海环流存在明显的季节变异．冬、夏季环流的基本形态有着较大的差别．（２）黄海暖流的路径和强度均有一定的年际变化．分析显示，１９９７年冬季，暖流路径明显偏于槽的西侧；而１９８６年冬，暖流的主流路径则沿槽北上．（３）黄海暖流并非对马暖流的直接分支．黄海暖流水是对马暖流水和陆架水混合而成．而且，它主要是在济州岛西侧海域，从锋区中衍生出来的．（４）夏季黄海表、底层环流大致皆是由一大的道时针向流系构成．但在其表层海盐尺度的气旋式环流内部还存在小的气旋和反气旋流环．分析亦表明，不论表层或底层，皆无高盐暖水从济州岛邻近海域进入黄海东部的明显迹象．Some features of circulation in the southern Huanghai Sea (SHS) are analyzed on the basis of the Observations of the China-Korea Joint investigation of Ocean Qrculation Dynamics in the SHS in the recent years and historical data. The main results are as follows: (1) The circulation in the SHS shows obvious seasonal variation. The basic patterns Of the circulation are quite different in winter and summer. (2) The path and the strength of the Huanghai Warm Current (HWC) has certain interannual variations. analyses indicate that the path of the HWC was Obviously to the west of the trough in the winter of 1997, but went toward the north along the trough in the winter Of 1986. (3) The HWC is not a direct branch Of the Tsushima Warm Current. The HWC water is a mixture of the Tsushima Warm Current water and the continental shelf water, but originates mainly from the frontal area west of cheju-do. (4) The summertime circulations are basically composed of a basinscale counterclockwise now in both surface and bottom 18yers. However, several smaller cyclonic and anticyclonic syStems appear in the larger opunterdockwise circulation. There is no obvious indications that the high temperature -- salinity water enters into the eastern Huanghai Sea from the sea area adjacent to Cheju-do in the surface and bottom layer.

关 键 词：南黄海 环流 特征 海水循环动力 

分 类 号：P731.27[天文地球—海洋科学] P722.5