九州西侧海域129°E断面的流速和温盐结构特征

THE STRUCTURES OF CURRENT VELOCITY, TEMPERATURE AND SALINITY ON THE 129° E SECTION WEST OF KYUSHU

根据中、日合作黑潮调查研究期间（1987－1993年）在九州西侧海域获得的水文资料，计算了129°E断面的地转流速和流量。着重提出129°E断面北侧存在一支较稳定的西向流；分析这支西向流的去向，指出它是向对马暖流输送黑潮水的重要途径；给出了这支西向流及黑潮通过该断面的流速、流轴、流幅及流量的变化特征。

Based on the hydrographic data obtained from the 129° E section west of Kyushu during the Chna-Japan cooperative study on the Kuroshio, and historical data, the variations of Kuroshio current velocity, its aals and width are calculated andanalysed in this paper The results showed that there are obvious up welling and moresteady westward flow in the left side of the Kuroshio’s tundng point. The variations ofthe velocity, volume transport, akis and width of this westward flow are also presented. The flow always formed a cyclonic (or anticyclonic eddy) in the area south (ornorthL) of 31° N, east of 128° E. A part of the flow moves westward or northwest-ward along the outer edge of the anticyclonic eddy and moves northward after mergingwith a northward flow from the continental shelf area, which is a main path for transporting Kuroshio water to the Tsushima Warm Current.