1989年东海陆架水团及高密水环流的季节变化

本文利用１９８９年的观测资料，分析了水团及高密水环流的季节演变特征。结果表明：东海高密水在陆架上存在一个季节性的变化过程，核心区有一个气旋型的密度环流；这个环流秋、冬季较弱，春、夏季较强；在该环流的产生过程中，它可以影响邻近水团的分布；在春季，邻近水团在东海高密水周围形成一个环状分布

The seasonal changes of the water masses and the dease water circulation on the continental shelf of the East China Sea

By using the observation data in 1989, the seasonal evolution features of the water masses and the dense water circulation are analyzed. The results show that there is a seasonal evolution process of the East China Sea winter dense water (ECSWDW) on the continental shelf of the East China Sea. It is also found that there is a density circulation induced by ECSWDW in the core area. The circulation is weaker in autumn and winter, stronger in spring and summer. In its developing process, it can influence the distribution of the adjacent water masses and make these water masses form a circle around the ECSWDW in spring.