福州大学学报（自然科学版）2025，Vol.53Issue(2)：226-233,8.DOI:10.7631/issn.1000-2243.23446
崇阳溪流域洪水预报模型构建
Construction of a flood forecasting model in Chongyang River
摘要
Abstract
With the problem of flood forecasting in mountain basin,the upper reaches of Chongyang River was taken as the research object,and the basin was digitized based on DEM and divided into sub-basins,the soil conservation service curve number(SCS-CN)method and SCS unit hydrograph method were used to calculate the runoff yield and confluence of sub-basins.Each sub-basin outlet corresponded to a section of river.According to the motion wave equation,all rivers were connected to form a river network and its confluence calculation was carried out,and flow hydrograph of the outlet section of the whole basin was obtained.Then the flood forecasting model of the upper reaches of Chongyang River was formed.Six typical floods were used for simulation and verification.The results showed that the relative error of peak discharge and flood volume of each flood was less than 5%,the absolute error of peak time was less than 60 minutes,and the simulation error met the specification requirements;and the certainty coefficient of the model was greater than 0.96,and the simulation results were well.The flood forecasting model could provide basis for flood control work in mountainous basin.关键词
流域数字化处理/产汇流计算/SCS-CN法/崇阳溪Key words
digital processing of watershed/calculation of runoff generation and confluence/SCS-CN method/Chongyang River分类
建筑与水利引用本文复制引用
金保明,王晨瑜,韦裕韬,颜望栋,曾泓源..崇阳溪流域洪水预报模型构建[J].福州大学学报（自然科学版）,2025,53(2):226-233,8.基金项目
福建省自然科学基金资助项目(2023J01405) （2023J01405）
福建省水利科技项目(MSK202408) （MSK202408）
