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应用模糊聚类方法，采集东海３０个站表层及底层１９９６－１９９８年夏季的水温（Ｔ）、盐度（Ｓ）、溶解氧（ＤＯ）、磷（Ｐ）、三态氮（Ｎ）、硅（Ｓｉ）、ｐＨ值等九个指标的测样数据，对东海水团进行划分，其表层水团配置为大陆沿岸冲淡水（Ｉ），黄东海混合水团（Ⅱ），台湾暖流水（Ⅲ），黑潮表层水（Ⅳ）等水团。底层水团配置为黑潮次表层水团（Ｖ），黄海冷水团（Ⅵ），台湾暖流水（Ⅲ）等水团。并分析了１９９６－１９９８年夏季由大陆径流和外海水团势力强弱影响所致的东海水团变动特征及沿岸冲淡水转向问题，同时讨论了东海水团分布与鲐■渔场关系。
Using fuzzy clustering method, the water temperature (T), salinity (S), dissolved oxygen (DO), phosphorus (P), trinary nitrogen (N) (I), Huangdonghai sea mixed water mass (Ⅱ), Taiwan warm water (Ⅲ), water temperature in Taiwan ), Kuroshio surface water (Ⅳ) and other water masses. The bottom water mass is configured as a water mass of the Kuroshio subsurface water mass (V), the Yellow Sea cold water mass (Ⅵ) and Taiwan’s warm water (¢ ó). The characteristics of the East China Sea water mass movement and the diversion of the fresh water from the coast of the East China Sea during the summer of 1996-1998 were analyzed. The distribution of the water mass in the East China Sea and the relationship of the fishery were also discussed.