ZHENG Yan-yan,QIN Hua-peng.Hydrological Modeling of Low Impact Development Combined Facilities and Its Uncertainty Analysis[J].China Water & Wastewater,2022,38(2022 1 1):114-121.
Hydrological Modeling of Low Impact Development Combined Facilities and Its Uncertainty Analysis
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第38卷
Number:
2022 1 1
Page:
114-121
Column:
Date of publication:
2022-01-01
- Keywords:
- low impact development; storm water management model (SWMM); hydrological modeling; uncertainty analysis; sponge city
- Abstract:
- In the construction of sponge city, the low impact development (LID) combined facilities can be used to control the rainfall runoff. But there is a large uncertainty of high-dimensional modeling with combined LID facilities. The storm water management model (SWMM) of LID combined facilities in a LID demonstration area of Shenzhen Environmental Protection Industrial Park was constructed, and the sensitivity and uncertainty of different facilities and different types of parameters in the model under different rainfall conditions were analyzed by the Morris screening method and differential evolution adaptive metropolis (DREAM) algorithm. The sensitivity of the downstream facilities parameters was generally higher than that of the upstream facilities parameters, and the sensitivity of drainage and conductivity related parameters was relatively high. The parameters of the downstream facilities had obvious peak posterior distribution and the parameter uncertainty was small. The uncertainty of the simulation results of moderate rainfall events was less than that of heavy rainfall events.
Last Update:
2022-01-01