利用1958—2007年间的月平均SODA (Simple Ocean Data Assimilation/海洋同化数据)资料, 较系统地研究了北太平洋经向盐量输送的基本特征和季节变化, 并探讨了盐量输送季节变化的可能原因。结果表明, 北太平洋净经向盐量输送的季节变化具有明显的区域性特征, 在141N以南海域盐量输送的季节变化较显著, 而在141N以北海域则较小; 北太平洋净经向盐量输送的季节变化在很大程度上是由同一纬度上Ekman盐量输送和中东太平洋经向盐量输送的季节变化引起的。
Based on monthly mean SODA (Simple Ocean Data Assimilation) data of 50 years (1958a2007), major features and seasonal variation of the North Pacific meridional net salt transport are systematically studied. The results show that the seasonal variation in the North Pacific meridional net salt transport displays strong regional characteristics. It has a stronger seasonal variation south of 14sN than north of 14NN. The seasonal variation is mainly caused by the seasonal oscillation of Ekman salt transport and the central-eastern Pacific meridional salt transport at the same latitude.
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