Development of Sustainable Stormwater Management Using Simulation-Optimization Approach for Climate Adaptation
Date Issued
2016
Date
2016
Author(s)
Huang, Yu-Ru
Abstract
Presently,many areas are experiencing a very rapid process of urbanization, which transforms natural landscape into impervious land cover, affecting the ecosystem health of receiving water bodies. On the other hand, Climate change had altered the hydrological processes globally with result that the extreme events have an increase in both the magnitude and the frequency. In particular, the high intensity rainfall cause the severe flooding had significantly impacted on human life and property in urban area. This research develops a simulation-optimization framework that integrates simulated annealing algorithm(SA) with SWMM to design combined Low Impact Development (LID) and the drainage system.The type and location of LID are optimized for minimizing the alteration of peak flows.The aim is to apply the stormwater management in Sustainable Community, which can meet the sustainable development goal and tackle the urban runoff problem.Besides,using TaiCCAT Adaptation Support Tool explores the strategic planning and rolling wave planning to provide government an advice in developing sustainable stormwater management under uncertain conditions of climate change. The case study is a community in Hsinchu in Taiwan, and the storm water management model (SWMM) is used to simulate the hydrologic flow regime under present and future climate scenarios. To mitigate the increasing risk caused by climate change in the future,the different level of LID are considered to be the adaptive strategies.The results indicate that the increase in peak flow under future scenarios can be reduced with area of 40%~50% LID cover for 5-year return period event and with area of 50%~70% LID cover for 10-year return period event. However, area of 20% LID cover can achieve the same effectiveness for a spectrum of design storms after the placement of LID are optimized. Moreover, concentrating LID priorly at the downstream location of drainage system have the minimal peak flow.And choosing the shorter drain pipe can be better. Overall, the priority of the location of LID is from the downstream to upstream of drainage system, and the trend can have the minimal peak flow.
Subjects
Stormwater Management
Low Impact Development
Optimization
Climate Change
Adaption
Type
thesis
File(s)![Thumbnail Image]()
Loading...
Name
ntu-105-R02622018-1.pdf
Size
23.54 KB
Format
Adobe PDF
Checksum
(MD5):8678d9775a3f540057346f295795cca5