Landslide susceptibility analysis with multi criteria decision methods; a case study of Taşova
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Abstract
Natural or artificial based disasters threaten to humans. In order to minimize the loss of life and property that may occur after a disaster, various studies are carried out. One of these studies is disaster risk maps. To produce disaster risk maps, the criteria which affecting the disasters should be determined. In order to evaluate more than one criterion Multi-Criteria Decision Making Methods (MCDM) and Geographical Information Systems (GIS) are used. MCDM methods are used both to weight criteria and to rank among alternatives. In the current study Taşova district of Amasya province is used as study area and two different Landslide Susceptibility Maps were produced based on Analytical Hierarchy Process (AHP) and Full Consistency Method (FUCOM) for this region. A total of twelve criteria were determined for production of risk map and raster data was produced by performing various spatial analyzes for the current criteria. Two different landslide susceptibility maps were obtained by giving criterion weights to the generated raster data. It was observed that, Risk-free area, low risk area and high risk area rates are almost equal, but medium risk area and risk area rates are different in two different weighting methods.
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