GIS-Based Approaches for the Landslide Susceptibility Prediction in Setif Region (NE Algeria)
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The present study is focused on a comparative evaluation of logistic regression (LR), frequency ratio (FR), information value (IV), and weight of evidence (WoE) methods for landslides susceptibility assessment in Bouandas region, North of Setif (NE Algeria). Information about landslide inventory and 17 pre-defined causative factors were prepared from multiple sources. The four methods are used to derive the weighted value of causative factors along the study area. The results were validated using receiver operating characteristic and the areas under the curves obtained using the FR, LR, IV and WoE methods are 0.86, 0.84, 0.81 and 0.79, respectively. The landslide susceptibility map produced from FR model is proposed to be more useful for the study area. It could reveal the relative importance of different factors in explaining landslides, and it may assist engineers in land-use planning.
KeywordsLandslide prediction Frequency ratio Logistic regression Information value Weight of evidence
The first author would like to thank Dr. Bassem El Hidouri (University of Gafsa-Tunisia), for his help in the field surveys and for his valuable criticism of the manuscript. The authors are also grateful to one anonymous reviewer for their valuable comments on the manuscript.
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