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利用美国国家环境预报中心的太平洋海域 1 980— 1 995年四维同化资料 ,计算了棉兰老海流和与之有密切联系的北赤道流、北赤道逆流流量的年际变化和季节变化特征。由此得出以下结论 :( 1 )棉兰老海流对北赤道逆流的初始流量贡献较大 ,是北赤道逆流的主要水源提供者之一 ,棉兰老海流与黑潮在季节变化中存在反相关系 ;( 2 )棉兰老海流在厄尔尼诺年初期加强 ,在反厄尔尼诺期间减弱 ;( 3)棉兰老海流的季节变化信号强于年际变化信号。
Based on the four-dimensional assimilation data from 1 980-1995 in the Pacific Ocean of the United States National Center for Environmental Preservation, the interannual and seasonal variations of the countercurrent flow in the north equatorial and north equatorial currents are calculated. The following conclusions can be drawn: (1) The Mindanao current contributes significantly to the initial flow of the North Equatorial Current and is one of the main sources of water supply to the North Equatorial Countercurrent, and the interannual change of the Mindanao Current and Kuroshio (2) the current in the Mindanao strengthened during the early El Niño period and weakened during the anti-El Niño period; (3) the signal of the seasonal changes of the Mindanao current is stronger than the interannual variation signal.