Modeling transportation of suspended solids in Zhujiang River estuary, South China   总被引：1，自引：0，他引：1  

陈晓宏陈永勤  赖国友 《中国海洋湖沼学报》2005,23(1):1-10

A three-dimensional transportation model for suspended solids （SS） in Zhujiang （Pearl） River estuary, South China, was developed by coupling with a three-dimensional hydrodynamic model. The model was validated using hourly measured data of sediment contents during 25-26, July 1999. The results showed that modeled contents matched well with measured ones and that the modeled top layer distribution agreed with the remotely sensed image of suspended solids in summer. The modeled results showed clearly the layers of suspended solids in depth, with larger sediment contents in lower layers though in the interface between salt water and freshwater the lowest contents appeared in middle layer. In overall, the suspended solids inflow from 8 rivers,transport southwestward, and carried by strong coastal flow in Zhujiang River estuary. Contours of sediment contents in the estuary spread further to the open sea during ebb tide rather than flood tide which reflects that the suspended solids in the estuary are land sourced.  相似文献   

珠江口悬浮泥沙迁移数值模拟   总被引：13，自引：1，他引：13       下载免费PDF全文

陈晓宏  陈永勤  赖国友 《海洋学报》2003,25(2):120-127

建立了珠江口海域三维悬浮泥沙的非饱和输沙数学模型,并与珠江口三维水动力斜压模型耦合,对悬沙迁移分布进行了模拟。模型由4个点的逐时实测含沙量过程进行了验证。各点模拟含沙量与实测含沙量吻合较好,表层分布与同期珠江口悬沙分布遥感图像基本一致.模拟结果表明,珠江口海域悬沙分布分层明显,河口附近水域大多为底层含沙量大于表层,但在盐淡水交汇处出现中层含沙量最小的情况总体上,自各个口门输出的泥沙受沿岸流作用向西南万向输送明显。大多数河口落潮时相对涨潮时含沙量等值线外移,反映珠江口水域悬浮泥沙主要来自河流。  相似文献   

基于GIS的水资源规划决策支持系统   总被引：1，自引：0，他引：1  

赖国友  张蕾等 《南海研究与开发》2001,(2):18-22

水资源规划决策支持系统（WRPDSS）是实现水资源规划科学化、现代化的重要手段。通过对决策支持系统的简单论述，提出了基于GIS的水资源规划决策支持系统（WRPDSS）的定义；给出了水资源规划决策支持系统的结构图，组织内容，组织方法，各部分的接口；最后简单介绍了以该思想为指导建立的某流域水资源规划决策支持系统。  相似文献