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Preparation and assessment of flood risk with a focus on vulnerability component using land-cover data
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Abstract: (64 Views) |
Objective: The objective of this research is to create a flood risk map in two regions: Chabahar in Sistan and Baluchestan and Aqqala in Golestan. Floods, as one of the most destructive disasters worldwide and in Iran, pose significant threats to human life, infrastructure, and the environment. Accurate identification of flood-prone areas is essential for effective disaster management, risk reduction, and planning for prevention. In this context, flood hazard and risk maps serve as vital tools for visualizing at-risk areas and guiding risk reduction efforts, and can play an effective role in strategic decision-making and crisis management.
Method: Flood risk is derived from the combination of the hazard and vulnerability maps, highlighting areas that simultaneously have a high probability of flooding and high vulnerability. In this study, the hazard map was obtained ready-made from a master's thesis, and the vulnerability map was produced by reclassifying ESA World Cover land use/land cover data. Finally, the final risk map was generated by combining the hazard and vulnerability maps.
Findings: In the hazard section, the total percentage of high and very high hazard in Chabahar and Aqqala is 37 and 34 percent, respectively. However, according to the generated risk map, 2 percent in Chabahar and 21 percent in Aqqala and western Golestan were identified as points with high risk. The clear difference between the two regions in the risk section compared to the hazard indicates more areas with high vulnerability in the Aqqala region compared to Chabahar.
Conclusion: This research identifies areas that are most in need of management and efforts to reduce and prepare for disasters. The findings from both study areas emphasize that in crisis management planning, focusing solely on hazard is not sufficient, and for effective decision-making and preventive measures, risk must be considered as a composite index of hazard and vulnerability. Therefore, the output of this research is necessary and useful for principled crisis management, planning, and sound decision-making to reduce risks caused by floods. |
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| Keywords: Hazard, Vulnerability, Flood Risk, Remote Sensing, Crisis Management |
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Type of Study: Research |
Subject:
General
Received: 2026/03/28 | Accepted: 2026/05/6
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