黄海和东海北部夏季底层溶解氧最大值和最小值特征分析

ON MAXIMUM AND MINIMUM DISSOLVED OXYGNE WITH BOTTOM LAYER IN YELLOW SEA AND NORTHERN EAST CHINA SEA IN SUMMER

根据1976～1985年黄海和东海北部调查资料,研究了该海区夏季底层溶解氧最大值和最小值的位置及其成因,分析了黄海中部中、下层溶解氧最大值与黄海冷水团的关系,得出中层溶解氧最大值可做为划分黄海冷水团范围的另一个指标。氏江口外夏季底层溶解氧最小值同长江冲淡水中携带的悬浮有机物质有关。

With the data from investigations conducted in the Yellow Sea and the northern East China Sea from 1976 to 1985, the stations and causes of the maximum and minimum dissolved oxygen (DO) with bottom layer in the area in summer have been studied in this paper. It is pointed out that the cold water mass in the Yellow Sea contributes to the appearence of maximum DO with middle-bottom layer in the middle of the sea. The maximum DO with the middle layer is an important index indecating the range of the cold water mass. The minimum DO with the bottom layer off the estuary of the Yangtse River in summer is influenced by the suspended organic matters from the river.