北京师范大学学报：自然科学版2012，Vol.48Issue(5)：559-565,7.
基于DEM的分布式水文模型前处理程序开发及应用
DEVELOPMENT AND APPLICATION OF A PREPROCESSING PROGRAM FOR DISTRIBUTED HYDROLOGICAL MODEL BASED ON DEM
摘要
Abstract
Preprocessing of hydrological model will strongly influence the results of runoff simulation,including several procedures such as flow direction determination,runoff order definition,flow accumulation calculation and drainage network extraction.In order to simplify the work procedure and improve the efficiency of model development,a new preprocessing program was developed,which could work independently with a graphic user interface.Only DEM data were required in this program,and characteristics of the program included the following.A method for flow direction determination without sink filling was intergraded;a new method for watershed partitioning-leaf clipping method was developed;The order of runoff routing could be determined according to a bottom-up method.A case study in the Lhasa River basin was presented.In comparison with traditional method,the results of preprocessing method were more efficient,which would be helpful for the development of distributed hydrological models.关键词
数字高程模型/分布式水文模型/前处理程序/拉萨河流域Key words
digital elevation model(DEM)/distributed hydrological model/preprocessing program/Lahsa River basin分类
计算机与自动化引用本文复制引用
李磊,刘文丰,徐宗学,张兰影..基于DEM的分布式水文模型前处理程序开发及应用[J].北京师范大学学报：自然科学版,2012,48(5):559-565,7.基金项目
国家自然科学基金重点资助项目 （）
中央高校基本科研业务费专项资金资助项目 （）
