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在GFDL海洋模式的基础上发展了一个高分辨率的太平洋环流模式,模式较好地模拟出太平洋上层海温的气候状态及其季节和年际变化的主要特征.用观测的1985~1995年海表风应力去强迫模式,清楚地模拟出相应的暖事件和冷事件.敏感性试验揭示,日界线附近持续的西风距平愈强,赤道中、东太平洋增暖愈大,其影响向东传播扩展,5个月左右可达太平洋东岸,传播速度与西风应力距平强度关系不大.
Based on the GFDL ocean model, a high resolution Pacific Ocean circulation model was developed. The model well simulates the climate characteristics of the upper Pacific SST and its main characteristics of seasonal and interannual variations. Using the observed sea surface wind stress from 1985 to 1995 to force the model, the corresponding warm events and cold events were clearly simulated. Sensitivity tests revealed that the westerly anomalies continued to be stronger in the vicinity of the daily boundary, and the greater the warming in the central and eastern equatorial Pacific, the greater the spread to the east and reaching the east coast of the Pacific Ocean in about 5 months. The spreading velocity and the westerly stress anomalies Intensity is not related.