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Scenario-Based Extreme Flood Risk of Residential Buildings and Household Properties in Shanghai

1
School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai 200234, China
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State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China
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Department of Hydraulic Engineering, Delft University of Technology, 1 Stevinweg, 2628 CN Delft, The Netherlands
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Institute of Urban Studies, Shanghai Normal University, Shanghai 200234, China
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Department of Tourism and Management, University of Zhengzhou, Zhengzhou 450001, China
*
Author to whom correspondence should be addressed.
Sustainability 2019, 11(11), 3202; https://doi.org/10.3390/su11113202
Received: 7 May 2019 / Revised: 2 June 2019 / Accepted: 4 June 2019 / Published: 8 June 2019
Extreme flooding usually causes huge losses of residential buildings and household properties, which is critical to flood risk analysis and flood resilience building in Shanghai. We developed a scenario-based multidisciplinary approach to analyze the exposure, losses and risks of residential buildings and household properties, and their spatial patterns at the neighborhood committee level in Shanghai, based on extreme storm flood scenarios of 1/200, 1/500, 1/1000 and 1/5000-year. Our findings show that the inundation area of the residential buildings caused by a 1/200-year storm flood reaches 24.9 km2, and the total loss of residential buildings and household properties is 29.7 billion CNY (Chinese Yuan) (or 4.4 billion USD), while the inundation area of residential buildings and the total loss increases up to 162.4 km2 and 366.0 billion CNY (or 54.2 billion USD), respectively for a 1/5000-year storm flood. The estimated average annual loss (AAL) of residential buildings and household properties for Shanghai is 590 million CNY/year (or 87.4 million USD/year), with several hot spots distributed around the main urban area and on the bank of the Hangzhou Bay. Among sixteen districts, Pudong has the highest exposure and annual expected loss, while the inner city is also subject to extreme flooding with an AAL up to near half of the total. An analysis of flood risk in each of 209 subdistricts/towns finds that those most vulnerable to storm flooding are concentrated in Pudong, Jiading, Baoshan Districts and the inner city. Our work can provide meaningful information for risk-sensitive urban planning and resilience building in Shanghai. The methodology can also be used for risk analysis in other coastal cities facing the threat of storm flooding. View Full-Text
Keywords: extreme flooding; residential building; household property; risk analysis; Shanghai extreme flooding; residential building; household property; risk analysis; Shanghai
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MDPI and ACS Style

Shan, X.; Wen, J.; Zhang, M.; Wang, L.; Ke, Q.; Li, W.; Du, S.; Shi, Y.; Chen, K.; Liao, B.; Li, X.; Xu, H. Scenario-Based Extreme Flood Risk of Residential Buildings and Household Properties in Shanghai. Sustainability 2019, 11, 3202. https://doi.org/10.3390/su11113202

AMA Style

Shan X, Wen J, Zhang M, Wang L, Ke Q, Li W, Du S, Shi Y, Chen K, Liao B, Li X, Xu H. Scenario-Based Extreme Flood Risk of Residential Buildings and Household Properties in Shanghai. Sustainability. 2019; 11(11):3202. https://doi.org/10.3390/su11113202

Chicago/Turabian Style

Shan, Xinmeng, Jiahong Wen, Min Zhang, Luyang Wang, Qian Ke, Weijiang Li, Shiqiang Du, Yong Shi, Kun Chen, Banggu Liao, Xiande Li, and Hui Xu. 2019. "Scenario-Based Extreme Flood Risk of Residential Buildings and Household Properties in Shanghai" Sustainability 11, no. 11: 3202. https://doi.org/10.3390/su11113202

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