Feasibility of landslide risk using Entropy model, case study: (Shirpnah mountainous region in South West Kermanshah Province)

Subject Areas : Geopolitic

Shirin Mohammadkhan ¹ , Abdolkarim Veisi ² , Keyvan Bagheri ³

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Received: 2015-10-13 Accepted : 2015-10-13 Published : 2015-01-21

Keywords: Risk zonation, Landslide, Entropy model, Shirpanah mountain,

Abstract :

The main objective of this study is landslide Susceptibility mapping in the Shirpanah, byusing of Entropy model and evaluation of this model in the zoning of landslides occurrenceof Shirpanah Mountain and the extent of the influence of each of these five factors on theoccurrence of the landslide. In the survey aerial photographs, satellite imagery, topographicmaps, geological maps and field research to identify the area and were photography from theoccurred landslide. In order to landslide susceptibility Mapping in the area of entropy modelwas used in GIS environment. The results show that the distance of the fault, slope,elevation, lithology and slope, have respectively, the greatest impact of landslides in thisarea. The total area of 20 km² (32%) is consist of in high-risk areas and 380 km² (84/48%) inaverage-risk zones. This suggests that the potential risk of landslides in the area is high. Alsothe results suggest that a 60 percent area landslides in the area in the sensitive areasidentified by the entropy model was located. Therefore, the validity of the proposed model isverified and Susceptibility maps produced can be used as a reference in the planning.