节点文献
基于GIS的水质模型集成研究及水环境信息管理系统开发
Integrated Research of Water Quality Model Based on GIS and Development of Water Environment Information Management System
【作者】 耿庆斋;
【导师】 张行南;
【作者基本信息】 河海大学 , 水文水资源, 2004, 硕士
【摘要】 本文分析了国内外水环境研究现状,鉴于水环境信息具有很强的空间特征,提出了利用GIS技术进行水环境信息管理的基本方法。着重探讨了一维、二维稳态水质模型与GIS的集成研究、动态水环境容量计算和水环境质量评价。 为了实现水质模型的离散、数值计算以及模拟结果的可视化显示,本文将对计算的河流进行概化,对一维河流采取分段处理,而河道较宽的河流将其网格化。本文采用了河势贴体河道平面二维正交网格的生成方法,并对其进行了改进,生成的网格不仅考虑与河势的拟合,而且考虑与河道边界线的拟合。 结合面向对象的Visual Basic高级编程工具和GIS控件MapObjects,开发了水环境信息管理系统,并将其应用于江苏省水环境容量研究、广西壮族自治区水资源保护管理和柳州市水资源管理之中,系统以其友好、便捷的用户界面,既弥补了水质模型模拟结果可视化上的不足,又充分发挥了GIS技术空间数据分析、处理、查询和管理上的优势,该系统的应用将大大提高水环境信息处理和管理水平。
【Abstract】 The present water environment and its research evolvement both at home and abroad are analyzed. For the sake of the complex spatial characteristics of water environment information, one way using GIS technology to deal with it is introduced. As the keystones of this paper, the integration of the one-dimensional and two-dimensional stable water quality model with GIS, the dynamic water environment capacity calculation and the water environment quality evaluation are discussed in detail.Aiming at realizing the dispersion, numeric calculation of water quality model and the visualization of modeling result, it is necessary to do some generation on the selected river. The one-dimensional river is sectioned, while the river of wide channel is divided into grids. The way adopted to plot grids is two-dimensional river regime fitted orthogonal grid for river channels, and the generated grid can approach not only river tendency but also the boundary line of river using improved one.By the use of the programming language Visual Basic and the GIS develop component MapObject, the following projects are developed: the Water Environment Capacity Research of Jiangsu Province, the Water Resource Preservation and Management of Guangxi Zhuang Autonomous Region and the Water Resource Management of Liuzhou. On one hand, the GIS mentioned above is user interface friendly and fully functional, on the other, it visualizes the output result of the water quality model, which definitely improves the efficiency of water environment information processing and management. The level of handling and management of water environment information will be raised greatly.
【Key words】 GIS; water environment information; water quality model; orthogonal grid; water environment capacity; water quality evaluation.;
- 【网络出版投稿人】 河海大学 【网络出版年期】2004年 03期
- 【分类号】X824
- 【被引频次】16
- 【下载频次】1187