通过近期水文观测 ,结合卫星遥感和历史水文资料 ,对台湾海峡南部海域的海洋锋现象进行了整体分析。结果表明 ,由于多种水系在此交汇 ,台湾海峡南部冬、夏季均有明显锋面发育。受季风气候影响 ,锋面发育有显著的季节差异。夏季影响本海区的水系主要有韩江冲淡水、上升流、南海水、和黑潮水等。它们的交汇形成了韩江冲淡水羽状锋、台湾浅滩上升流锋、黑潮锋、以及陆架 /陆坡锋等复杂的三维锋面结构。韩江冲淡水和上升流对夏季海峡南部浅海锋面的形成起着十分重要作用。冬季影响本海区的水系主要为浙闽沿岸水和南海水 ,两种水系的交汇形成贯穿海峡南部的变型的沿岸锋。以中线为界海峡西侧受沿岸水支配 ,东侧澎湖水道一带为南来暖水盘踞 ,锋带与等深线走向一致 ,呈三段结构。隆冬季节东北风强盛时锋面可南移到陆架坡折 ,形成陆架 /陆坡锋。 Through the recent hydrological observations, combined with satellite remote sensing and historical hydrological data, a comprehensive analysis of the ocean front in the southern Taiwan Strait was conducted. The results show that due to the intersection of a variety of water systems here, the southern Taiwan Strait in winter and summer have significant frontal development. Affected by the monsoon climate, there are significant seasonal differences in frontal development. The water system affecting the sea area in summer mainly includes the fresh water from the Hanjiang River, upwelling, the South China Sea, and the Kuroshio. The intersection of them formed a complex three-dimensional frontal structure such as the Hanjiang dilute flood feather front, Taiwan shoal updraft front, Kuroshio front, and shelf / slope front. The freshwater and updraft of the Hanjiang River plays an important role in the formation of the shallow-sea front in the southern part of summer strait. The water system affected by the winter in this area is mainly the coastal water of Zhejiang and Fujian and the South China Sea. The intersection of the two water systems forms a variant coastal front that runs through the southern part of the Straits. On the west side of the strait, it is dominated by the coastal water. The eastern side of the Penghu water channel occupies the southward warm water, and the frontal strike line is in line with the isobath. It is in a three-stage structure. In the winter season, when the northeasterly winds prevail, the front can move southward to the slope of the continental shelf, forming a shelf / front slope.