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Comparison of Landslides Susceptibility Analysis using AHP, SMCE and GIS for Nilgiris district, India

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Title Comparison of Landslides Susceptibility Analysis using AHP, SMCE and GIS for Nilgiris district, India
 
Creator Shanthi, S.
Elangovan, Dr. K.
 
Subject Landslides
Susceptibility
Geographical Information System
Analytical Hierarchy Process Method
Spatial Multi Criteria Evaluation method
Nilgiris district
 
Description 802-814
In this study first locations of past occurrence were identified and an inventory form were created and integrated to GIS to derive landslide inventory map predictors. Secondly predictors causing landslides were identified from report of past landslides. Thirdly thematic maps of the identified predictors namely geomorphology, geology, drainage, rainfall, lineament, road, railway, soil, land use/land cover, slope and aspect were derived using Geographical Information System (GIS). Finally based on relative importance of factors and their categories influencing landslide susceptibility weights and ratings of predictors were calculated using two multi criteria approaches namely Analytical Hierarchy processes (AHP) and Spatial Multi Criteria Evaluation (SMCE). Weights and rating obtained for factors and predictors were overlayed using weighted overlay tool of GIS software to generate LS map with classified five zones namely very low, low, moderate, high and very high. Using field check and Receiver Operating Curve (ROC) the LS map were validated, using validate location set Area Under the Curve (AUC) AHP of 95.98% and SMCE of 98.86% were determined .
 
Date 2017-04-05T10:05:10Z
2017-04-05T10:05:10Z
2017-04
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://nopr.niscair.res.in/handle/123456789/41092
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.46(04) [April 2017]