五强溪流域相似性研究及参数移植分析  

Similarity and Parameter Transplantation Analysis of Wuqiangxi Basin

作　　者：李德清 石彬 李致家[3] 赵勇 申升腾 李巧玲[3] LI Deqing;SHI Bin;LI Zhijia;ZHAO Yong;SHEN Shengteng;LI Qiaoling(Hunan Wuling Electric Power Technology Corporation,Changsha 410004,Hunan,China;Hebei Hydrological Survey Research Center,Shijiazhuang 050031,Hebei,China;College of Hydrology and Water Resources,Hohai University,Nanjing 210024,Jiangsu,China)

机构地区：[1]湖南五凌电力科技有限公司,湖南长沙410004 [2]河北省水文勘测研究中心,河北石家庄050031 [3]河海大学水文水资源学院,江苏南京210024

出　　处：《水力发电》2024年第4期4-9,共6页Water Power

基　　金：国家自然科学基金资助项目(52079035)。

摘　　要：在PUB计划的引领下,流域相似性研究得到了进一步发展。为探究相似流域参数移植的可行性,结合DEM及土地利用等数据,选取多个表征水文特征的相似性指标,通过相对均方根误差法和层次聚类法判别五强溪内10个流域相似关系,将相似的流域参数移植并进行洪水预报。结果表明,陶伊和五强溪近坝区流域坡度分布相对均方根误差值为0.44、地形指数相对均方根误差为0.25,且层次聚类法计算的两个流域距离系数为0.11,水文特征最为相似。将陶伊流域部分参数移植到五强溪近坝区流域,通过新安江模型进行洪水预报,取得了较好的洪水模拟结果。Under the guidance of the Predictions in Ungauged Basins(PUB)plan,the study of watershed similarity has been further developed.In order to explore the feasibility of transplanting similar watershed parameters,this paper combines DEM and land use data and selects multiple similarity indexes representing hydrological characteristics to discriminate the similarity relationship of 10 watersheds in Wuqiangxi Basin by relative root mean square error method and hierarchical clustering method.Similar watershed parameters are transplanted and flood forecasting is carried out.The results show that the relative root mean square error of slope distribution in Taoyi Watershed and the watershed near Wuqiangxi Dam site is 0.44,the relative root mean square error of topographic index is 0.25,and the distance coefficient of the two watersheds calculated by hierarchical clustering method is 0.11.Some parameters of the Taoyi Watershed are transplanted into the watershed near Wuqiangxi Dam site,and the flood forecast is carried out through the Xin'anjiang model.The flood simulation results are better.

关 键 词：水文相似性 参数移植 新安江模型 洪水预报 五强溪流域 

分 类 号：P338[天文地球—水文科学]