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针对在南方涛动循环中东太平洋信风变化的特征，用国家海洋环境预报中心的五层太平洋环流模式模拟热带海洋对气候风应力脉动的响应。试验结果表明，当南方涛动处于高指数时，赤道东太平洋海表温度从表层至２５０ｍ深都会出现负距平，表层距平洋流向西，下层２００ｍ深左右距平流向东，即赤道潜流加强，而当南方涛动指数取负值时，热带东太平洋东风应力减弱，热带太平洋海表温度增高，这种增暖自东向西扩展，上层距平洋流向东，下层距平洋流向西，赤道潜流有减弱趋势，这些正是典型的埃尔尼诺特征。计算结果与观测结果基本一致。
In response to the characteristics of the wind changes in the East Pacific during the Southern Oscillation Cycle, a five-layer Pacific Ocean circulation model from the National Marine Environmental Forecasting Center was used to simulate the response of tropical oceans to climatic wind stress pulsations. The results show that when the Southern Oscillation is at a high index, the negative anomalies of the sea surface temperature of the equatorial Eastern Pacific from the surface to the depth of 250m will occur. The surface of the equatorial Pacific will flow westward and the depth of about 200m from the lower layer to the east, ie, the equatorial underflow strengthens On the other hand, when the Southern Oscillation Index takes a negative value, the easterly anomalies in the tropical eastern Pacific weaken and the tropical Pacific sea surface temperature increases. The warming extends from east to west with the upper anomalies flowing to the east and the lower anomalies flowing westward. The downward trend in the equatorial underflow tends to be the typical El Ni 特 characteristic. The calculation results are basically consistent with the observation results.