摘要
以桃河阳泉小流域为例,探索了HEC-HMS模型在缺资料地区山洪预报的应用可行性。产流模块采用Green-Ampt模型、坡面汇流模块采用SCS单位线、河道汇流模块采用运动波,通过流域DEM、土壤、土地利用等下垫面信息获取了主要参数,构建了山洪预报模型。在1970—2015年的流量系列中筛选出14场典型洪水场次,对模型进行了验证。结果表明,验证期洪峰流量相对误差均小于10%,平均纳什效率为0.88,对于起涨和退水速度快的单峰型洪水,模拟效果较好,通过下垫面信息获取的模型参数准确有效,达到了山洪预报的技术要求。
Taking the Yangquan watershed of Taohe River as an example,the feasibility of HEC-HMS model in mountain flood forecasting in the lack of data area is explored.The production flow module adopts the Green-Ampt model,the slope surface convergence module adopts the SCS unit line,and the riv er channel convergence module adopts the motion wave.The main parameters are obtained through the infor mation of the basin underlying surface,i.e.,DEM,soil and land use,and a mountain flood forecasting model is constructed.Through the flow series from 1970 to 2015,14 typical floods were extracted,and the model parameters were calibrated.The results show that the relative error of flood peak flow in the veri fication period is less than 10%,and the average Nash efficiency is 0.88.For the unimodal flood with fast rising and retreating speed,the simulation efficiency is better,and the model parameters obtained from the underlying surface information are accurate and effective,meeting the requirements of flash flood forecasting.
作者
邢子康
马苗苗
文磊
刘昌军
吕娟
苏志诚
XING Zikang;MA Miaomiao;WEN Lei;LIU Changjun;LüJuan;SU Zhicheng(College of Water Resources and Hydrology,Hohai University,Nanjing 210098,China;Center of Flood and Drought Disaster Reduction of Ministry of Water Resources,Beijing 100038,China;State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering,Hohai University,Nanjing 210098,China;China Institute of Water Resources and Hydropower Research,Beijing 100038,China)
出处
《中国水利水电科学研究院学报》
北大核心
2020年第1期54-61,共8页
Journal of China Institute of Water Resources and Hydropower Research
基金
中国水科院基本科研业务费项目(JZ0145B582017)
湖南省水利科技项目([2017]230-36)。
关键词
水文模型
山洪预报
阳泉流域
参数率定
hydrological model
flash flood forecast
Yangquan watershed
calibration
