摘要
基于GIS与DEM技术,构建基于Holtan产流的分布式水文模型(Grid-Holtan模型)。模型以栅格为计算单元,栅格产流采用基于Holtan下渗方法的超渗产流计算,坡面汇流和河道汇流均采用逐栅格的一维扩散波水流演算模型模拟。将Grid-Holtan模型、陕北模型与新安江模型应用于半干旱的沁河孔家坡流域。结果表明,Grid-Holtan模型、陕北模型的模拟效果好于新安江模型,GridHoltan模型洪峰模拟效果更好。
Using the GIS and DEM techniques,a distributed hydrological model based on a runoff generation theory（ the Grid-Holtan model） was developed. For each computational cell,the infiltration-excess runoff was calculated with the Holtan infiltration method,and the overland flow and river flow routing were simulated with the onedimensional diffusion wave model. The Grid-Holtan model,Shanbei model,and Xinanjiang model were applied to the Kongjiapo Catchment of the Qinhe Basin,in China. The results show that the Grid-Holtan model and Shanbei model perform better in flood simulation than the Xinanjiang model,while the flood peak simulation accuracy of the Grid-Holtan model is higher.
出处
《河海大学学报（自然科学版）》
CAS
CSCD
北大核心
2016年第4期340-346,共7页
Journal of Hohai University(Natural Sciences)
基金
国家自然科学基金(51509043
41130639)
国家气象中心水文气象预报团队和中国气象局首批青年英才计划(2014-2017)
关键词
水文过程模拟
分布式水文模型
Grid-Holtan模型
陕北模型
新安江模型
Holtan产流
一维扩散波
沁河孔家坡流域
hydrological process simulation
distributed hydrological model
Grid-Holtan model
Shanbei model
Xinanjiang model
Holtan runoff generation model
one-dimensional diffusion wave
Kongjiapo Catchment of Qinhe Basin
