白马关流域洪水模拟及参数优化研究  

Flood Simulation and Parameter Optimization of Baimaguan Watershed

作　　者：卢雪琦 张焜 胡晓静 陈腊娇 胡宏昌[4] 董贵明[2,5] 李秉南 LU Xue-qi;ZHANG Kun;HU Xiao-jing;CHEN La-jiao;HU Hong-chang;DONG Gui-ming;LI Bing-nan(Beijing Water Science and Technology Institute,Beijing 100048,China;The National Key Laboratory of Water Disaster Prevention,Hohai University,Nanjing 210098,China;Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 100094,China;Department of Water and Hydroelectric Engineering,Tsinghua University,Beijing 100084,China;School of Resources and Geosciences,China University of Mining and Technology,Xuzhou 221116,China)

机构地区：[1]北京市水科学技术研究院,北京100048 [2]河海大学水灾害防御全国重点实验室,江苏南京210098 [3]中国科学院空天信息创新研究院,北京100094 [4]清华大学水利水电工程系,北京100084 [5]中国矿业大学资源与地球科学学院,江苏徐州221116

出　　处：《水电能源科学》2024年第2期9-13,共5页Water Resources and Power

基　　金：北京市山洪预报模型构建项目(ZX-2022-036-FZS);国家自然科学基金项目(U2240217);“一带一路”水与可持续发展科技基金资助项目(2022490511)。

摘　　要：为提高山区洪水的模拟精度,以北京市密云区白马关流域为例,采用分布式水文水动力模型(HH模型)模拟2017~2022年降雨—径流过程,选取6场典型场次洪水,利用ε-NSGAⅡ多目标优化算法对HH模型的关键参数进行优化。结果表明,率定场次洪水的纳什系数介于0.89~0.96之间,洪峰流量误差达20%以内,洪量误差达15%以内,峰现时差在1 h以内;验证场次洪水的纳什系数介于0.81~0.92之间,洪峰流量误差达20%以内,洪量误差达10%以内,峰现时差在1 h以内,HH模型参数优化后对白马关流域场次洪水的模拟效果较好。最后提出了适用于白马关流域洪水模拟的关键参数阈值范围,为当地山区水文模拟参数优化提供了科学的理论依据。To improve the simulation accuracy of mountain floods,the distributed hydrological-hydraulic model(HH model)was used to simulate the rainfall-runoff process from 2017 to 2022 in the Baimaguan Watershed of Miyun District,Beijing.Choosing six typical field floods,multi-objective optimization algorithm ε-NSGAⅡ was adopted to optimize the key parameters of the HH model.The results indicate that the Nash coefficients of the rate floods ranged from 0.89 to 0.96,the errors of flood peak flow were within 20%,the errors of flood volume were within 15%,and the differences of peak and present time were within 1 hour;The Nash coefficients of the validation floods ranged from 0.81 to 0.92,the errors of flood peak flow were within 20%,the errors of flood volume were within 10%,and the differences of peak and present time were within 1 hour.After optimized the parameters of the HH model,the simulation effect of floods in the Baimaguan Watershed was good.Finally,the threshold range of the key parameters applicable to flood simulation in the Baimaguan Watershed was proposed,which provides a scientific theoretical basis for optimizing hydrological simulation parameters in local mountainous areas.

关 键 词：分布式水文水动力模型 洪水模拟 参数优化 白马关流域 

分 类 号：P333[天文地球—水文科学] TV124[水利工程—水文学及水资源]