基于DEM和WMS的流域特征提取及应用

摘要

This paper introduces the professional hydrological software of simulation processing---WMS model system. The prin-ciples and methods of river valley and river systems are based on 90m accuracy digital elevation model (DEM) automatic extrac-tion.Take the Suichuan river basin of Ji'an city as the study area for river network generation test research ,and get the river basin hydrological information and feature.After it is analyzed,the informations from study area river network and river basin characteris-tics are consistent with the actual water river system features,so the method of using DEM to divide the basin is reasonable.%本文根据数字高程模型（DEM）自动提取流域水系的原理和方法，以江西省吉安市遂川江流域为研究区域进行河网生成试验，提取流域水文特征信息。经分析，应用DEM划分的流域结果合理。