DWSM模型产汇流模块的原理及应用  

Principle and Application of Runoff Yield Module of Dynamic Water Simulation Model(DWSM)

作　　者：郑毅[1] 方红卫[1] 韩冬[1] 

机构地区：[1]清华大学水沙科学与水利水电工程国家重点实验室,北京100084

出　　处：《南水北调与水利科技》2008年第3期28-31,共4页South-to-North Water Transfers and Water Science & Technology

基　　金：国家自然科学基金委杰出青年基金(50325929)

摘　　要：DWSM(Dynamic Watershed Simulation Model)以坡面为基本计算单元,在结构上属于分布式松散耦合型流域模型,适合模拟单次降雨或暴雨事件。现主要介绍了DWSM模型产汇流模块的原理、结构,河网汇流顺序和存储规则等,并把该模型应用于北京市温榆河东沙河流域的实测降雨产汇流模拟,结果表明该模型对洪峰的模拟相对误差在9%以内,能满足洪水模拟的精度要求。DWSM （Dynamic Watershed Simulation Model） is a single storm event model, the distributed loosely coupled watershed model based on the hillslope computational segment. The paper mainly presented the principle and structure of its runoff yield module,the efficient computational sequence,etc. Moreover,DWSM is applied to the Dongsha River watershed, which is a tributary of Wenyu River in Beijing. The results showed that the relative error between simulated and measured peak flows were no more than 9%,so DWSM could meet the accuracy demand of flood simulation.

关 键 词：近似冲击波拟合法 单次暴雨 洪水模拟 

分 类 号：P333.2[天文地球—水文科学]