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序言国家海洋局南海分局于1978年至1979年,在东经111°至117°、北纬18°30′至23°15′的海域,布设七条经向断面线(图1)。每月两条船同时出海巡回观测一次,完成一次作业所要的时间约五天。所以,对其调查可以看作是近似同步的。众所周知,黑潮水团起源于太平洋赤道水团,具有高温、高盐、高水色和大透明度等特征。黑潮暖流是北赤道流的延续,它以流量大、水体清晰而著称。在东北季风强盛的冬季时
Preamble Nanhai Branch of the State Oceanic Administration conducted seven meridional section lines (Figure 1) from 1978 to 1979 in the waters of 111 ° -117 ° East longitude and 18 ° 30’-23 ° 15 ’north latitude. Two ships a month at the same time roving observation tour to complete an operation of the time required for about five days. Therefore, its investigation can be seen as approximately synchronous. It is well-known that the Kuroshio water mass originates from the Pacific equatorial water mass and is characterized by high temperature, high salt, high water color, and great transparency. The Kuroshio Current is a continuation of the northern equatorial current. It is famous for its large flow rate and clear water body. In the northeast monsoon strong winter