摘要
土地利用/覆被是水文模拟的重要影响因子。为探究不同分辨率土地利用数据对SCS模型模拟降雨径流的影响、减小模型在降雨径流模拟方面的误差,以伊洛河流域为研究对象,结合2005、2010、2015年三年的土地利用数据,利用SCS模型对这三年的降雨径流进行模拟,对比分析基于不同分辨率的土地利用数据集对模型参数CN值的影响。研究表明,SCS模型对于伊洛河流域集中降雨产生的径流具有较好的模拟效果;土地利用数据的分辨率对CN值的影响较大,使用分辨率更高的土地利用数据可以减小模型模拟产生的误差,误差减小范围在5%~10%。
Land use and land cover are important factor influencing hydrological simulation.In order to explore the influence of land use data with different resolutions on SCS model for simulating rainfall and runoff and reducing the model error in rainfall and runoff simulation,taking the Yiluo River Basin as the research object,and combined with the land use data of 2005,2010 and 2015,this paper simulates the rainfall and runoff of these three years,and compares and analyzes the influence of land use data sets based on different resolutions on the CN value of model parameters.The study shows that SCS model has a good simulation effect on runoff generated by concentrated rainfall in the Yiluo river basin.The resolution of land use data has a great influence on the CN value.The error of model simulation can be reduced by applying land use data with higher resolution,with error reduction range between 5%and 10%.
作者
汪梦涵
赫晓慧
郭恒亮
WANG Menghan;HE Xiaohui;GUO Hengliang(School of Hydraulic Science and Engineering,Zhengzhou University,Zhengzhou 450001,China;School of Geo-Science&Technology,Zhengzhou University,Zhengzhou 450052,China;Henan Province Supercomputing Center,Zhengzhou 450052,China)
出处
《人民珠江》
2020年第10期30-35,共6页
Pearl River
基金
河南省重点研发与推广专项(192102310273)。
