摘要
以山西省汾河流域为水系提取实验研究区域,采用该区域的DEM数据,依托地表径流模型,并利用ArcGIS10.0中的水文处理工具包对河流流域进行水系特征提取,通过对水流方向的计算,对集水积累量进行分析,最终生成基于不同阈值的河网。
As Shanxi Fen River basin study area, based on the principle of surface runoff model by using the hydrological ArcGIS10.0 processing toolkit for feature extraction of river basin water system, the flow of useful D8 algorithm main direc- tion, the river and the resulting volume. Based on the threshold of the catchment area of another, until it matches the actual characteristics of the aqueous basically heyuan River, DEM in order to find the threshold value of the catchment area of the optimum river, the feature is extracted is, by using ArcGIS hydro stream network processing module, implemented in the ex- traction of river.
出处
《科技创新与生产力》
2014年第11期60-63,共4页
Sci-tech Innovation and Productivity
关键词
汇流面积阈值
DEM
水系提取
汾河流域
confluence area threshold
DEM
aqueous extract
fen river basin
