Accuracy of landslide potential hazard maps of Kurdistan dam watershed using Full ConsistencyMethod (FUCOM), BestWorst Method (BWM) and Analytic Hierarchy Process (AHP) methods

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Ildoromi Alireza; Spehri Mehdi

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Journal Paper

Paper Information

Journal: HYDROGEOMORPHOLOGY Year:2024 | Volume:10 | Issue:37 Page(s): 80-63

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Title

Accuracy of landslide potential hazard maps of Kurdistan dam watershed using Full ConsistencyMethod (FUCOM), BestWorst Method (BWM) and Analytic Hierarchy Process (AHP) methods

Author(s)

Ildoromi Alireza | Spehri Mehdi | Issue Writer Certificate

Keywords

Landslide

AHP

BWM

FUCOM

Kurdistan

Abstract

In this researchlandslide sensitivity was zoned using statistical models intheKurdistan Dam watershed and the most appropriatemodel was introduced.First, the studied area was determined and with field observations, the number of 9 landslides was recorded and a landslide distribution map was prepared. In the next step, the factors affecting the occurrence of landslides including geology, rainfall, land use, distance from the river, distance from the fault, slope and height were identified and then a map of these factors was prepared. To determine the rateof each of the effective factors in the occurrence of landslides, the map of each information layer of the effective factors is integrated with the distribution map of the landslide and using AHP, BWM and FUCOM statistical modelsseparate information layers are weighted and By overlapping different layers, the final landsliderisk zoning mapswere prepared and compared.The results showed that land use in AHP and BWM methods and rainfall lines, in addition to land use inFUCOM method have the greatest effect and the criteria of heightdistance from the fault and slope respectively in the three AHP, BWM and FUCOM methods have the least effect on the occurrence of landslidestheresults showed that the lithological variable has a great role on the occurrenceof landslides in the studied area.In generalthe results showed that in AHP and BWM methods, the numberof required pairwise comparisons increases significantly with the number of compared parameters, and in this case, the uncertaintyof opinions increases, which shows the superiority of the FUCOM method over It showswell in other ways.

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