论文部分内容阅读
本文主要基于韩国海洋研究所在东海沿岸海洋过程试验中收集的ＣＴＤ资料，分析了１９９５年春季出现在东海东北部的一些重要水文结构。结果表明，一种锋涡状结构出现在黑潮向东转折点附近。它不仅使邻近海域的水文结构变得更复杂，而且诱发黑潮水与陆架水间活跃的交换。在陆架坡折处观测到若干孤立的陆架水块，可能是锋涡的卷挟作用所致；该海域存在４个水团，即黑潮水、对马暖流水、陆架水和混合水。对马暖流水分为上下两层：上层水为变性黑潮水，盐度比黑潮水约低０．１，底层对马暖流水仅位于冲绳海槽区，并有着与黑潮中层水相同的温、盐特性；一种双锋结构出现在邻近黑潮的陆架边缘附近。在内陆架形成的陆架锋，由北向南伸展时，愈来愈偏向陆架边缘。而黑潮锋沿九州以西深槽的陆架边缘向北伸展。在黑潮转折点附近，两锋几乎合并为一条锋。狭窄的锋带由黑潮水及其变性水和陆架水的混合水所占据。
Based on the CTD data collected by the South China Sea Institute for Ocean Processes in the East China Sea during the coastal period, this paper analyzes some important hydrological structures appearing in the northeastern part of the East China Sea in the spring of 1995. The results show that a frontal swirling structure appears near the turning point of the Kuroshio to the east. It not only makes the hydrological structure of the adjacent sea area more complicated, but also induces an active exchange between the Kuroshio water and the shelf water. The observation of several isolated shelf water blocks at the slope of the shelf may be caused by the entrainment of the frontal vortex. There are 4 water masses in the area, namely Kuroshio, Malaya, Shelf and mixed water. The horse warm water is divided into upper and lower levels of water: the upper water is denatured Kuroshio, salinity lower than the Kuroshio about 0.1, the bottom of the horse warm water is only located in the Okinawa trough area, and has the same with the Kuroshio middle water temperature, Salt features; a dual front structure appears near the edge of the shelf adjacent to Kuroshio. As the continental shelf formed by the inland shelf extended from north to south, it increasingly deflected to the edge of the shelf. Kuroshio front extends northward along the shelf edge of deep shelf west of Kyushu. Near the turning point in the Kuroshio, the two factions merged into almost one front. The narrow frontal zone is occupied by a mixture of Kuroshio and its denuded and shelf waters.