台湾暖流的变异与热带太平洋海况的关系

本文报道了台湾暖流的强弱和黑潮源地海域的径向输入量有关;台湾暖流的变异与El Nio现象的关系也相当密切。

THE VARIATION OF THE TAIWAN WARM CURRENT RELATION TO MARINE CONDITION OF TROPICAL PACIFIC

The Taiwan Warm Current (TWC), a branch derived from the source area (northeast of Taiwan) of the Kuroshio, bears a relation between its variational character and the hydrogra-phical conditions in the source area of the Kuroshio. But so far there are only limited data on this relationship. To identify the relation between TWC and the hydrographical conditions in the source area of the Kuroshio, the authors compared the longitudinal volume transports of the Kuroshio at the four latitudinal sections (17°N, 20°N, 23°N and 25°N) of its source area (observed in summer between 1965 and 1966) with the strength variations of TWC. All the volume transports of the Kurshio at the four sections in the summer of 1965 were larger than those in the summer of 1966. The TWC in the summer of 1966 was also weaker. It follows from this fact that there was a relatively good corresponding relation betweenthe strong and weak variations of TWC and the longitudinal volume transports in the sourcearea of the Kuroshio. In the recent study of air-sea interaction and the role of El Nino phenomenon, a preliminary analysis was made on the correlation since 1959 between the strongand weak variations of TWC and the El Nino phenomenon. It was found from the analysisthat there was a close correlation between them. It was observed that the next year, afterthe El Nino phenomenon (an especially stronger one) occurred, the TWC was weaker.