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Application of analytical hierarchal process, frequency ratio, and Shannon entropy approaches for landslide susceptibility mapping using geospatial technology: The case of Dejen district, Ethiopia

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Abstract

A comprehensive study of landslide susceptibility was carried out in Dejen district which have experienced repeated landslide activities. The purpose of this study was to investigate and identify the landslide susceptible areas using the most common, widely accepted, and ensemble models, analytical hierarchal process (AHP), frequency ratio (FR), and Shannon entropy (SE) and evaluate their performances. In this study, 87 landslides were identified, and a landslide inventory map has been generated. Twelve landslide conditioning factors like aspect, geology, elevation, slope, soil, rainfall, land use land cover (LULC), normalized difference vegetation index (NDVI), topographic wetness index (TWI), curvature, distance from the road, and distance from the river were extracted and prepared from the spatial database. Based on the analysis, the high and very high percentage of landslide susceptibility classes cover about 54% of the study area. The receiver operating curves (ROC) and area under curve (AUC) used to validate the models. The results revealed that AHP model with a success rate of 86.5% and predictive rate 85.8% performs better than SE (success rate = 85.6%, and predictive rate = 85.3%) and FR model (success rate = 82.5% and predictive rate 81.8%). The results could be helpful for planners for general land use planning and management.

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Correspondence to Tadele Melese.

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Responsible Editor: Biswajeet Pradhan

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Melese, T., Belay, T. & Andemo, A. Application of analytical hierarchal process, frequency ratio, and Shannon entropy approaches for landslide susceptibility mapping using geospatial technology: The case of Dejen district, Ethiopia. Arab J Geosci 15, 424 (2022). https://doi.org/10.1007/s12517-022-09672-5

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  • DOI: https://doi.org/10.1007/s12517-022-09672-5

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