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用一个三维、自由表面、原始方程模式对南海环流进行了计算 .计算结果表明 :黑潮在巴士海峡以西呈一反气旋弯曲流动路径 ,有一相对高温高盐的水舌从巴士海峡伸入南海 ,表明有部分黑潮水侵入南海 .冬季南海的一些观测事实在模式结果里得到了很好的反映 ,像冬季逆风向东北方向流动的“南海暖流”和一些中尺度涡旋 .同时还分析了巴士海峡沿 1 2 0 75°E断面的流速和盐度的垂直结构 ,并同观测结果进行了比较 .根据模式结果 ,我们还进一步讨论了“南海暖流”的形成和驱动机制 .
The results show that the Kuroshio presents an anti-cyclonic flow path to the west of the Bashi Strait and a relatively high-temperature and high-salt water tongue extends into the South China Sea from the Bashi Strait. Indicating that some of the Kuroshio intrudes into the South China Sea.Some observational facts in the winter South China Sea are well reflected in the model results, such as the “South China Sea Warm Current” and some mesoscale vortices that flow northeastward in winter against headwinds. Meanwhile, The vertical structure of velocity and salinity along the 120 ° cross section of 120 ° E is compared with the observations and based on the model results we further discuss the formation and driving mechanism of the “South China Sea Warm Current”.