三维斜压模式对冬季南海环流的数值计算

游小宝; 李荣凤; 张铭; 曾庆存

三维斜压模式对冬季南海环流的数值计算

1.
LASG, 中国科学院大气物理研究所, 北京, 100029;解放军理工大学气象学院, 江苏, 南京, 211101
2.
LASG, 中国科学院大气物理研究所, 北京, 100029
3.
解放军理工大学气象学院, 江苏, 南京, 211101

基金项目: 国家自然科学基金(40076009;49905007);中国科学院资源环境领域知识创新工程项目(KZCX2-205)

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- 文章访问数: 933
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出版历程
- 收稿日期: 1999-01-05
- 修回日期: 2001-06-15

Numerical calculation of the wintertime circulation in the South China Sea by using a baroclinic model

1.
LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China;Institute of Meteorology, PLA University of Science and Technology, Nanjing 211101, China
2.
LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
3.
Institute of Meteorology, PLA University of Science and Technology, Nanjing 211101, China

摘要

摘要: 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120.75°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.
- 三维斜压模式 /
- 涡旋 /
- 南海暖流
Abstract: The wintertime circulation in the South China Sea(SCS) has been simulated by using a three-dimensional,primitive-equation model with a free surface.Computed results show that:a realanticy clonic meandering path of the Kuroshio appears west of the Bashi Channel(BC),and a tongue with relatively high temperature and salinity spreads into SCS from BC which represents a intrusion of the Kuroshio.Some observed discoveries in SCS in winter such as the South China Sea Warm Current(SCSWC) which is against wind flowing northeastward(N E-ward),and some mesoscale eddies are all revealed by the model.The vertical structure of velocity and salinity alog 120.75°E Section in BC reproduced by the model compare well with observations.Based on the model results we also discuss further the formation and driving mechanism of SCSWC.
- three-dimensional baroclinic model /
- mesoscale eddy /
- South China Sea Warm Current

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参考文献(24)

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