【摘要】 <正> 位于北黄海西部的烟威渔场,在渔业生产中占有重要地位。但鱼虾集群条件和渔场位置的变化,受北黄海冷水团的强弱影响很大。尤其是春季,是冷水团形成的初期,水体不稳定,其影响就更为明显。在冷水团强度强的年份,鱼群活动偏向近岸,垂直活动较差;在冷水团强度弱的年份,鱼群分散,垂直活动明显。所以,摸清冷水团强度的变化,对了解春季更多还原

【Abstract】 The intensity of cold water mass in spring depends on the lowest water tem- perature and area of cold water region. In this report, taking the half of absolute values of this two indexes in anomaly of many years as a criterion to divide the intensity of Western-North Yellow Sea cold water mass in April and May, 1960- 1980 (Table 1). There is a close relation between the intensity of cold water mass and the clim- atic condition in last winter. When. the water temperature were lower, the negative accumulated daily value of air temperature were larger, the north wind were too much last winter, the cold water would be strengthened this spring; vice versa. This report suggest that, use the regression equation constructed by above- mentioned factors for the cold water strength forecasting, a better result would be obtained.更多还原