摘要
为了解决我国城市降雨径流模型参数校准数据欠缺的问题,应用较易获得的径流系数作为校准目标,以峰现时间作为径流系数模拟值的计算依据,以合成单峰降雨作为校准降雨事件,在SWMM平台上进行模型参数校准。通过校准模型适用性和灵敏度分析,表明该法既可以满足模型参数预校准的要求,也可以在模型参数不确定性分析的基础上用于实践。因此,该法是改善城市降雨径流模型参数校准状况的有效途径。
In order to deal with the calibration data scarcity problem in China, the parameter calibration of urban rainfall-runoff model is conducted based on SWMM, which uses the easy-access runoff coefficient as parameter calibration target, time of runoff peak as the basis of runoff coeffi- cient simulation, and the synthesized single-peak rainfall events as the calibrated rainfall scenarios. According to the applicability and sensitivity analysis for the calibrated model, it shows that the method can meet the demand for model parameter pre-calibration and for practices on the basis of model parameter uncertainty analysis. Therefore, it is an effective approach to improve the parameter calibration condition for urban rainfall-runoff model.
出处
《给水排水》
CSCD
北大核心
2009年第11期213-217,共5页
Water & Wastewater Engineering
基金
上海市教育发展基金会晨光计划项目(2007CG63)
上海市教委科研创新项目(08YZ112)
上海高校优秀青年教师科研专项基金(shs-07028)
上海市科委908专项(PJ3)
关键词
雨水管网
降雨径流模型
参数校准
径流系数
灵敏度分析
SWMM
Storm sewer networks
Rainfall-runoff model
Parameter calibration
Runoff coefficient
Sensitivity analysis
SWMM
