摘要
以淮河黄泥庄流域为研究对象,构建用于洪水模拟预报的分布式流域水文模型MIKE SHE,根据参数物理意义以及率定的方式确定MIKE SHE的模型参数。选用流域出口控制站黄泥庄水文站1983年～2009年间的21场洪水资料,对建立的模型进行了模拟与验证。在此基础上,研究设定了5种网格大小及5种时间步长,探究时空尺度变化对模型模拟效果的影响。结果表明,MIKE SHE模型对时间与网格尺度大小均较为敏感,且在一定尺度范围内,洪峰与洪量随网格增大而增大,随时间步长增加而减小。
Taking Huangniuzhuang watershed of Huaihe River as study object, the distributed watershed hydrological model MIKE SHE for flood simulating and forecasting is constructed. The parameters of MIKE SHE model are determined according to the physical meaning of parameter and the calibration. 21 flood events from Huangnizhuang Hydrological Station in river basin outlet are selected to simulate and validate the model. On this basis, five kinds of grid sizes and five kinds of time steps are set to explore the influence of time-space scale change on model simulation results. The results indicate that the MIKE SHE model is sensitive to both time step and grid size, and within a certain scale, the flood peak and flood volume increase with the increase of grid and decrease with the increase of time step.
作者
李大洋
梁忠民
周艳
LI Dayang;LIANG Zhongmin;ZHOU Yan(College of Hydrology and Water Resources, Hohai University, Nanjing 210098, Jiangsu, China)
出处
《水力发电》
北大核心
2019年第5期28-33,66,共7页
Water Power
基金
国家重点研发计划重点专项(2016YFC0402706)
国家自然科学基金重点基金资助项目(41730750)
