Fractal study on salinity distribution in the North Branch of Yangtze Estuary

被引：0

作者：

Ding, L. ^{[1
]}

Dou, X. P. ^{[1
]}

Gao, X. Y. ^{[1
]}

Jiao, J. ^{[1
]}

机构：

[1] Nanjing Hydraul Res Inst, Key Lab Port Waterway & Sedimentat Engn, Minist Transport, Nanjing, Jiangsu, Peoples R China

来源：

PROCEEDINGS OF THE 2016 5TH INTERNATIONAL CONFERENCE ON CIVIL, ARCHITECTURAL AND HYDRAULIC ENGINEERING (ICCAHE 2016) | 2016年 / 95卷

关键词：

North Branch of Yangtze Estuary; Fractal theory; Salinity intrusion; Salt-fresh water mixing;

D O I：

暂无

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In this paper, salinity characteristics in North Branch of Yangtze Estuary is studied based on Fractal Theory by analyzing the observed saline data. The inner rules of salt water and fresh water mixing system can be expressed by fractal characteristic values (fractal dimension D and fractal proportionality constant A). Larger fractal dimension D means more homogeneous saline vertical distribution and salt-fresh mixing degree is higher. Fractal proportionality constant A and salinity intrusion intensity have positive correlation. The following conclusions can be drawn. The salt-fresh water mixing degree and salinity intrusion intensity decrease from outside to inside in North Branch of Yangtze Estuary. The curve graph of daily salinity is similar with the tidal level. The maximum of salinity occurs near tidal flood and the minimum occurs near the tidal ebb. The mixture degree during the spring tide is larger than that during the neap tide. The salinity outside the estuary doesn't change much during one spring-neap tide cycle. The saltwater intrusion variation during spring-neap tide cycle is increasingly obvious from outside to inside in North Branch of Yangtze River.

引用

页码：665 / 670

页数：6