Impacts of Climate Change on Urban Drainage Systems by Future Short-Duration Design Rainstorms
The adverse impacts of climate change and urbanization are converging to challenge the waterlogging control measures established in the Dong Hao Chong (DHC) Basin. Based on representative concentration pathway (RCP) scenarios, the future (2030–2050) waterlogging was assessed for the DHC basin and co...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-10-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/13/19/2718 |
| _version_ | 1797515673769869312 |
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| author | Han Zhang Zhifeng Yang Yanpeng Cai Jing Qiu Bensheng Huang |
| author_facet | Han Zhang Zhifeng Yang Yanpeng Cai Jing Qiu Bensheng Huang |
| author_sort | Han Zhang |
| collection | DOAJ |
| description | The adverse impacts of climate change and urbanization are converging to challenge the waterlogging control measures established in the Dong Hao Chong (DHC) Basin. Based on representative concentration pathway (RCP) scenarios, the future (2030–2050) waterlogging was assessed for the DHC basin and combined with future design rainfall. The delta change factors were projected using the regional climate model, RegCM4.6, and the annual maximum one-day rainstorm was modified to develop the annual maximum value method. By combining the delta change and annual maximum value methods, a future short-duration design rainstorm formula is developed in this study. The Chicago hyetograph shapes indicated that the peak rainfall intensity and amount both increase in the five return periods with two RCP scenarios. The InfoWorks ICM urban flood model is used to simulate the hydrological response. The results show that climate change will exacerbate urban waterlogging in DHC Basin. The maximum inundation volume and number of inundation nodes were expected to increase in the five return periods under the RCP4.5 and RCP8.5 scenarios, respectively. The submerged area is increasing due to climate change. This study highlights the link between climate change and urban drainage systems, and suggests that the effect of climate change in extreme rainfall should be considered in urban waterlogging management and drainage system design. |
| first_indexed | 2024-03-10T06:48:35Z |
| format | Article |
| id | doaj.art-c9d696dcdd6c49328d9df6c946e6c83f |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-10T06:48:35Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-c9d696dcdd6c49328d9df6c946e6c83f2023-11-22T17:01:35ZengMDPI AGWater2073-44412021-10-011319271810.3390/w13192718Impacts of Climate Change on Urban Drainage Systems by Future Short-Duration Design RainstormsHan Zhang0Zhifeng Yang1Yanpeng Cai2Jing Qiu3Bensheng Huang4Institute of Environmental & Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, ChinaInstitute of Environmental & Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, ChinaInstitute of Environmental & Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, ChinaGuangdong Research Institute of Water Resources and Hydropower, Guangzhou 510635, ChinaGuangdong Research Institute of Water Resources and Hydropower, Guangzhou 510635, ChinaThe adverse impacts of climate change and urbanization are converging to challenge the waterlogging control measures established in the Dong Hao Chong (DHC) Basin. Based on representative concentration pathway (RCP) scenarios, the future (2030–2050) waterlogging was assessed for the DHC basin and combined with future design rainfall. The delta change factors were projected using the regional climate model, RegCM4.6, and the annual maximum one-day rainstorm was modified to develop the annual maximum value method. By combining the delta change and annual maximum value methods, a future short-duration design rainstorm formula is developed in this study. The Chicago hyetograph shapes indicated that the peak rainfall intensity and amount both increase in the five return periods with two RCP scenarios. The InfoWorks ICM urban flood model is used to simulate the hydrological response. The results show that climate change will exacerbate urban waterlogging in DHC Basin. The maximum inundation volume and number of inundation nodes were expected to increase in the five return periods under the RCP4.5 and RCP8.5 scenarios, respectively. The submerged area is increasing due to climate change. This study highlights the link between climate change and urban drainage systems, and suggests that the effect of climate change in extreme rainfall should be considered in urban waterlogging management and drainage system design.https://www.mdpi.com/2073-4441/13/19/2718climate changeRCP scenariosfuture short-duration rainstormInfoWorks ICMwaterloggingDong Hao Chong Basin |
| spellingShingle | Han Zhang Zhifeng Yang Yanpeng Cai Jing Qiu Bensheng Huang Impacts of Climate Change on Urban Drainage Systems by Future Short-Duration Design Rainstorms Water climate change RCP scenarios future short-duration rainstorm InfoWorks ICM waterlogging Dong Hao Chong Basin |
| title | Impacts of Climate Change on Urban Drainage Systems by Future Short-Duration Design Rainstorms |
| title_full | Impacts of Climate Change on Urban Drainage Systems by Future Short-Duration Design Rainstorms |
| title_fullStr | Impacts of Climate Change on Urban Drainage Systems by Future Short-Duration Design Rainstorms |
| title_full_unstemmed | Impacts of Climate Change on Urban Drainage Systems by Future Short-Duration Design Rainstorms |
| title_short | Impacts of Climate Change on Urban Drainage Systems by Future Short-Duration Design Rainstorms |
| title_sort | impacts of climate change on urban drainage systems by future short duration design rainstorms |
| topic | climate change RCP scenarios future short-duration rainstorm InfoWorks ICM waterlogging Dong Hao Chong Basin |
| url | https://www.mdpi.com/2073-4441/13/19/2718 |
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