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利用由GFDL的MOM3海洋环流模式和NODC的XBT数据库生成的全球海洋同化数据,分析了热带西太平洋环流及其季节变化.同化数据所反映的环流结构和平均流速流量与已知观测结果非常吻合.同化数据算得的北赤道流、棉兰老流、黑潮源地以及140°E以西的北赤道逆流等的流量基本上都表现出春强秋弱的季节变化特征,尽管彼此之间还存在少许位相差.由于两个热带流涡季节循环之间存在位相差,北赤道逆流还有半年振荡.与其上游的棉兰老流和新几内亚沿岸流不同的是,印度尼西亚贯通流在夏季东南季风期间较强,表明其季节变化深受季风影响.
The tropical western Pacific circulation and its seasonal variations are analyzed using global ocean assimilation data generated by the GFDL’s MOM3 ocean circulation model and the NODC’s XBT database, which is in good agreement with known observations. The assimilation data of the North Equatorial Flow, Mindanao, the source of the Kuroshio, and the equatorial countercurrent to the west of 140 ° E basically show the seasonal variation of Qiangqiangqiu weak, although there is still a little between them Because of the phase difference between the two tropical vortex season cycles, there is still a half-year oscillation in the northern equatorial countercurrent.With the upstream of Mindanao and New Guinea littorals, the Indonesian through-flow is less pronounced during the southeastern summer monsoon Strong, indicating that the seasonal changes are particularly affected by the monsoon.