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利用国际ARGO观测中心2001年2~3月在黑潮再循环环流圈投放的浮标资料,结合TRMM观测的海表温度资料和T/P-ERS卫星高度计资料,分析了北太平洋副热带西部模态水形成区海洋涡旋对冬季上混合层的影响.反气旋式暖涡增强了冬季局地的垂向混合过程,形成较深的混合层及温度跃层,有助于北太平洋副热带西部模态水的形成.发现上世纪90年代,96~98年对应北太平洋副热带西部模态水形成区的黑潮及黑潮延伸体海区的涡旋活动以气旋式冷涡为主,较多的气旋式冷涡有效抑制了冬季上层海洋的垂向混合过程;而93~95年则相反,较多的反气旋式暖涡加强了冬季上层海洋的垂向混合过程.
Based on the buoy data put on by the International ARGO Observatory from February to March 2001 in the Kuroshio Recycling Circulation and the data of the sea surface temperature measured by TRMM and the T / P-ERS satellite altimetry data, the effects of the subtropical western model water The effect of ocean vortex on the upper mixed layer in the formation area.The anti-cyclone-type warm vortex enhances the vertical mixing process in winter and forms a deeper mixed layer and thermocline which contributes to the subtropical western mode water It is found that the vortex activity in the Kuroshio and Kuroshio extension sea areas corresponding to the formation of the western North Pacific subtropical western model water in the 1990s was dominated by the cyclonic cold vortex and the more cyclonic cold vortex was effective Which suppresses the vertical mixing process of winter upper ocean. On the contrary, from 93 to 95 years, more anticyclonic warm eddies enhance the vertical mixing process of winter upper ocean.