长江冲淡水输运和扩散途径的分析  

Analysis on the path of transportation and diffusion of Changjiang diluted water

作　　者：潘玉球[1] 黄树生[1] 

机构地区：[1]国家海洋局第二海洋研究所

出　　处：《东海海洋》1997年第2期25-34,共10页Donghai Marine Science

基　　金：国家自然科学基金

摘　　要：本文在总结前人成果的基础上，进一步分析了长江冲淡水输运和扩散的途径。文章指出，长江冲淡水输运和扩散的途径有两种：顺岸南下型在冬、夏季都存在，它主要以杭州湾的次级锋面流和沿岸锋密度流为代表；转向型从５～６月开始。The paper further analyzes the path of transportation and diffusion of Changjiang diluted water on the basis of summarizing the achievements obtained by predecessors. It is indicated that the paths of transportation and diffusion of Changjiang diluted water can be separated into two types. One, known as coastal southward type, exists in winter and summer. It is a frontal flow which consists mainly of coastal front flow and sub front flow of Hangzhou bay. Another one, known as turning type, starts from May to June every year. The density front between the low density water of Taiwan warm current and the East China Sea dense water is the channel of the Changjiang diluted water diffusing to offshore.

关 键 词：河口环流 长江 冲淡水输运 扩散 废水 污染物 

分 类 号：X55[环境科学与工程—环境工程] P343.5[天文地球—水文科学]