Flood Risk Management Analysis based on Concepts of Hazard, Exposure, and Vulnerability by Providing Frameworks and Models

Document Type : review paper

Authors

• mahboobeh hajibigloo ¹
• vahedberdi sheikh ²

¹ Gorgan

² gorgan

10.22067/jwsd.v5i1.62313

Abstract

Flood risk management is a comprehensive approach which includes various evaluation indicators in river basins, it is an effective and sustainable but complex method. Flood risk assessment provides valuable information to assess vulnerability and exposure to hazard. For assessing the flood risk in river basins, several models such as RF, DSS, ANN, RFM, SVM, and GA are used to study the effective parameters of flood risk which have been used in different watersheds for the determination of the importance of these indicators. Determining a suitable model for use on the basin scale requires the consideration of the model suitability for the basin local conditions, data requirements, model complexity, accuracy and validity of the model, model hypothesis, spatial and temporal variation of the model, model components, and user target. In general, there is no model suitable for all conditions. Problems related to the inability to identify, the lack of uniqueness of the model, and the physical incomprehensibility of calibration parameters are some of the issues that are caused by the application of distributive and physical models. These issues also exist in complex conceptual models. To meet the growing needs of field administrators, it is necessary to have tools that can be fully used to investigate the spatial distribution of floods and the transport of river materials. As a general and practical rule, the development of distributed models with a relatively low physical complexity is recommended.

Keywords

• Hazard
• Vulnerability
• Flood risk assessment
• Flood risk management
• Modeling

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