Application and extraction of river basin feathers based on DEM and WMS

This paper introduces the professional hydrological software of simulation processing ——WMS model system.The principles and methods of river valley and river systems are based on 90m accuracy digital elevation model(DEM)automatic extraction.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 characteristics are consistent with the actual water river system features,so the method of using DEM to divide the basin is reasonable.