CAJ | 학술논문

介绍了基于数字高程模型(DEM)的流域信息提取方法,包括:DEM预处理,流向及集水面积的确定,水系的生成及子流域的划分方法以及流域面积、长度、坡度、坡向等信息的提取.并将这些方法应用于安徽境内的呈村流域,进行了实例验证,构建了数字化流域.
개소료기우수자고정모형(DEM)적류역신식제취방법,포괄:DEM예처리,류향급집수면적적학정,수계적생성급자류역적화분방법이급류역면적、장도、파도、파향등신식적제취.병장저사방법응용우안휘경내적정촌류역,진행료실례험증,구건료수자화류역.
The methods and procedures based on the digital elevation model (DEM)to extract watershed information were introduced,including pre-processing of DEM,flow-direction computation and determination of catchment area,and extraction of drainage networks,sub-basins,lengths,slopes and aspects.Simultaneously,the Chengcun watershed in Anhui Province was digitized as a cage in terms of these extraction methods and procedures.