Flood risk zoning by using of FAHP method (Case study: Kermanshah county)

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Ghanbari Abolfazl; Amirian Sohrab; Amirian Yousef

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Journal Paper

Paper Information

Journal: GEOGRAPHIC INFORMATION AND REMOTE SENSING IN PLANNING Year:2024 | Volume:3 | Issue:9 Page(s): 131-105

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Title

Flood risk zoning by using of FAHP method (Case study: Kermanshah county)

Author(s)

Ghanbari Abolfazl | Amirian Sohrab | Amirian Yousef | Issue Writer Certificate

Keywords

Flood Zoning

Density of drain

Fuzzy hierarchical analysis Process

Fuzzy operator

remote sensing

Abstract

Iran is one of the flood-prone countries in the world, and due to climate changes in recent years, we will see more destructive floods in the future. The more prevention and measures are considered, the less human losses and economic costs will be involved. Identifying flood-prone areas is one of the primary measures to deal with them. The Kermanshah township was not separated from this and this research was conducted with the aim of preparing a flood potential map of Kermanshah township. Considering that there are many parameters that are effective in flooding, so in this research, seven parameters of height, slope and direction of slope, vegetation, land use, density of watercourse or drainage network, precipitation and distance from the watercourse are selected and the corresponding map for each one was prepared. In the next step, the maps prepared using the fuzzy AHP hierarchical analysis model were weighted and finally the layers were overlapped using the gamma fuzzy operator in ArcMap software, and the maps related to flood risk zoning in the Kermanshah township. Was obtained. The area and areas of flood risk in Kermanshah township with very high, high, medium, low and very low degrees was calculated as percentage 6.3, 9.1, 10.4, 16.7 and 28.6 respectively and the area of the regions with flood risk in Kermanshah city with very high, high, medium, low and very low degrees equal to 19.3, 26.4, 2.5, 17.3 and 34.5 respectively.

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