摘要
为了建立敖江流域基础信息系统,开展数字流域研究,本文使用地理高程数据,借助流域水文软件WMS,构建了敖江流域水系结构.运用栅格型DEM数据与流域出口点位置,以TOPAZ算法为依据,绘制流域轮廓与水系结构,建立流域水系拓扑关系,划分出子流域,并计算了各子流域的面积、周长、坡度与形状因子等参数,为敖江数字流域建设提供了重要依据.在敖江流域水系构建工作基础上,分析了WMS软件在流域水系构建上的优势与不足,并指出水系构建在流域分析管理中的积极意义与对流域可持续发展的促进作用.
In order to establish the basic information system of Aojiang Watershed and carry out the future researches on digital watershed,a watershed drainage network was established based on Digital Elevation Model and watershed hydrology software WMS.Using the grid DEM and watershed outlet,we delineated watershed boundary and drainage network according to Topographic Parameterization (TOPAZ) algorithm in WMS.Seven sub-watersheds were defined,and watershed drainage network topology relationship was built.Parameters for sub-watersheds were computed,such as sub-watershed area,perimeter,shape factor and slope.It provided important foundation for the establishment of the Digital Aojiang Watershed.Finally,the advantages and disadvantages of the establishment of drainage network in WMS were discussed.
出处
《厦门大学学报（自然科学版）》
CAS
CSCD
北大核心
2005年第B06期80-83,共4页
Journal of Xiamen University：Natural Science
基金
福建省科学技术厅青年科技人才创新项目(2001J054)
福州大学校基金资助项目(XJY0110)
