中文摘要：

＂西边界潜流（WBUC）＂是海洋环流中的重要现象,与表层环流相比,对次表层潜流的结构认识不足。本文利用SODA、OFES和ARGO资料,分析了北太平洋中的棉兰老潜流（MUC）和吕宋潜流（LUC）、南太平洋中的大堡礁潜流（GBRUC）和东澳大利亚潜流（EAUC）及南印度洋中的阿加勒斯潜流（AUC）的气候态空间分布特征,并且根据地转流反向的判据,分析WBUC的发生条件。

英文摘要：

The western boundary undercurrent is an important phenomenon in the ocean circulation, and there was less knowledge about the undercurrents than the surface currents. The climatological distribu tion of several undercurrents, including Mindanao Undercurent, Luzon undercurrent, Great Barrier Reef undercurrent, East Austrilian undercurrent and Agulhas Undercurrent, were analyzed using the SODA, OFES and ARGO data. The emergence of the subsurface countercurrents is tightly associated with the opposite horizontal gradients of sea surface height and the depth of the thermocline.