The research was conducted to generate a hydrologically correct DEM of Mesoscale in the loess hilly region with the 1∶50 000 digital topographic maps,including contours,spot heights and streams,and the ANUDEM software in Xian Nangou catchment of Yanhe river.The derived contours,the representation of topography and river networks were selected to evaluate the quality of the DEM.Result showed that using digital map and ANUDEM software can generate hydrologically correct DEM of meso-scale in the loess hilly re...
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