南海夏季海流的数值模拟

用一个水平分辨率较高的区域海洋模式计算了中国海的海流。本文给出了南海７月份的上层环流的数值模拟结果。结果表明:在南海北部的陆架区，一支较强的东北向海流穿过台湾海峡流入东海；在海南岛东南和越南沿岸以东海域有一个气旋式的涡旋；南海南部被一个反气旋式的大涡旋所占据。计算得到的这些环流特征与观测结果十分一致。另外，数值模拟结果还显示出，黑潮的一个分支通过巴士海峡的南部进入南海，虽然一部分海水不断被陆架诱导流向东北，但是仍有一部分海水可以一直向西流到海南岛以东海域。

Simulated Results of the Current in the South China Sea in Summer

Simulated results of the upper layer current in the South China Sea in summer are given which show that: there is a strong coastal current flowing Northeastward along the north continental shelf of the South China Sea and entering the East China Sea through the Taiwan Strait; in the area southeast to Hainan Island and east to Vietnam a cyclonic eddy occurs around Xisha and Zhongsha archiPelagos; an anticyclonic eddy occupies the southern South China Sea. These features are in good agreement with observations. However, simulated results also display a branch of the Kuroshio entering the South China Sea through the southern pait of the Bashi Strait, the Pxistence of which could be confipoed by very few observations.