Flood hazard zoning in dry areas, using AHP-Fuzzy Model in Dashti region, south Iran

Document Type : Research Paper

Authors

1 Department of Geophysics, Faculty of Nano and Bio Science and Technology, Persian Gulf University, Bushehr, Iran

2 Assistant Professor, Department of Earth Sciences, Graduate University of Advanced Technology, Kerman, Iran

10.29252/aridbiom.2024.21525.2011

Abstract

Floods have been considered the most common natural disaster worldwide in recent years. Flood hazard potential mapping is required for the management and mitigation of flood. Climatic change and the occupation of rivers and drainage have led to floods in arid areas. The objective of this study is to assess and zoning flood risk using the AHP-FUZZY hybrid approach model in the Dashti region of Bushehr Province.  In this study, precipitation, elevation, slope, drainage density, land use, geology and soil parameters were used. These parameters have been constructed and classified in the ARC GIS Software; which were weighed according to the AHP method in AHP SOLVER software and the layers were fuzzy using the fuzzy model. Finally, by combining the AHP-FUZZY method, the flood risk assessment and zoning map were obtained.6.5% of the area is in the very high-risk range, and 27.9% is in the high-risk range.  Analysis of the final map shows that Khormuj, Sana and Shonbeh are at greater risk of flooding. The combination of the AHP-FUZZY method in previous research has confirmed that this method has great capacity in flood risk assessment and zoning. Therefore, knowing the flood potential of the basin can be effective in formulating crisis management plans when faced with floods.

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Main Subjects

References

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Journal of Arid Biome
Volume 14, Issue 1
March 2024
Pages 47-60

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