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用美国普林斯顿大学海洋模式（ＰＯＭ）对南中国海的年平均海流进行了数值模拟，对温盐结构和风应力在海流形成中的作用进行了较详细的讨论。结果表明，仅有温盐水平不均匀分布也可以驱动海水而生成南海海流，但此种海流的结构较乱，最大流速只有３０～４０ｃｍ·ｓ－１。若温盐无水平结构，则在风应力驱动下，南海海流的结构较为有序，且最大流速可增至６０～７０ｃｍ·ｓ－１。在温盐水平分布不均匀并有风应力的作用时，生成的南海海流与仅有风应力作用时的海流场较相似，说明在南海海流的形成中，风应力的作用更为重要。海面自由高度的分析也证明了上述结论。
The annual average current in the South China Sea was numerically simulated by the Princeton University Ocean Model (POM), and the effect of temperature and salt structure and wind stress on the formation of ocean currents was discussed in detail. The results show that the sea currents can be driven by the inhomogeneous distribution of temperature and salinity to generate the South China Sea currents. However, the structure of this current is rather chaotic and the maximum velocity is only 30-40 cm-s-1. Under the condition of wind stress, the structure of the South China Sea currents is more orderly, and the maximum flow rate can be increased to 60-70 cm · s-1 if the salt has no horizontal structure. When the temperature and salinity level are unevenly distributed and the wind stress is acting on the wind, the generated South China Sea current is similar to the current when the wind stress is only applied. This indicates that the role of wind stress is more important in the formation of the South China Sea current. The analysis of sea surface free height also proves the above conclusion.