Loss Assessment of Dike-Break Induced Flood Disaster: A Case Study in the Poyang Lake District in China
Publication: Geo-Risk 2023
ABSTRACT
Loss evaluation of dike-break-induced flood disaster has become a worldwide concern due to its enormous economic, environmental, and societal importance. In this paper, the Sanjiao dike in the Poyang Lake district in China is investigated as a case study. An integrated dike-break-induced flood modeling and losses assessment framework is proposed. The MIKE 21-based numerical approach is developed to model the flood routing process in the flood protection region of dike. A flood routing model that can take into account the influence of land utilization on the roughness coefficient of underlying surface is established for the Sanjiao dike. By this means, the flood water depth, flow velocity, flood peak appearance time, and other spatiotemporally distributed flood inundation data can be obtained. With the behavior of the flood well understood, a physics-informed quantitative approach is further developed on ArcGIS and Python platform to assess the dike-break-induced flood losses, including life, economic, and ecological environment losses. The research outcomes provide an integrated decision-making process for flood warning and risk mitigation in the protection region of dike.
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Information & Authors
Information
Published In
Geo-Risk 2023
Pages: 213 - 223
History
Published online: Jul 20, 2023
ASCE Technical Topics:
- Bodies of water (by type)
- Business management
- Case studies
- Disaster risk management
- Disasters and hazards
- Economic factors
- Engineering fundamentals
- Flood routing
- Floods
- Hydraulic engineering
- Hydraulic properties
- Hydraulic roughness
- Hydraulic structures
- Lakes
- Levees and dikes
- Methodology (by type)
- Practice and Profession
- Research methods (by type)
- Water and water resources
- Water management
Authors
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