不同水文模型在双桥流域的应用比较  

Comparative Application of Different Hydraulic Models in Shuangqiao Basin

作　　者：朱炬明 周买春[1] 

机构地区：[1]华南农业大学水利与土木工程学院,广东广州510642

出　　处：《人民黄河》2016年第4期22-26,共5页Yellow River

基　　金：国家自然科学基金资助项目(41171029);广东省水利科技创新项目(2009-42)

摘　　要：新安江模型、SWAT模型和BTOPMC模型分别代表集总式、响应单元式和网格分布式三种不同结构的流域水文模型。以Nash效率系数为目标函数,采用SCE-UA自动优化算法率定模型参数,对双桥流域的日径流进行了模拟。结果表明:新安江模型、SWAT模型和BTOPMC模型都能较好反映双桥流域的日径流过程。从总体效果来看,新安江模型的模拟效果比SWAT模型和BTOPMC模型的好,三个模型对总体水量的模拟误差都在±10%以内,水量模拟比较平衡。在不同流量级的模拟中,SWAT模型的水量平衡效果均比新安江模型和BTOPMC模型的好;大流量模拟时,新安江模型的模拟均方根误差较小,模拟效果最好;中流量和小流量模拟时,BTOPMC模型的均方根误差较小,模拟效果最好。Xinanjiang, SWAT and BTOPMC are three representative hydrological models to simulate a basin lumped, response unitsemi-distributed and grid-distributed respectively. In this study, three different models were used to simulate daily rainfall-runoff processes inShuangqiao basin and the model parameters were calibrated by using SCE-UA algorithm with Nash-Sutcliffe efficiency as their objectfunctions. The simulation indicates that Xinanjiang, SWAT and BTOPMC models can represent daily rainfall-runoff processes in Shuangqiaobasin very well. From the overall, Xianjiang model gets a better simulation than that of SWAT and BTOPMC models; all the three models aregood in water volume simulation. According to different discharges, SWAT model has a better simulation of water volume than that ofXinanjiang and BTOPMC models; the accuracy of Xinanjiang model is the highest in simulation of high discharge and BTOPMC modelperforms the best in simulation of median and small flow.

关 键 词：新安江模型 SWAT模型 BTOPMC模型 径流模拟 双桥流域 

分 类 号：TV121.1[水利工程—水文学及水资源] P338.8[天文地球—水文科学]