Landslide Susceptibility Zone using Frequency Ratio Model, Remote Sensing &GIS –A Case Study of Western Ghats, India (Part of Kodaikanal Taluk)

Abstract

Landslide is the most common natural hazards in hilly terrains due to factors like gravity, weathering, deforestation, earthquake, heavy precipitation etc results heavy loss causing widespread damage to property and infrastructure, besides loss of human lives almost every year. The aim of the study is to assess the Landslide susceptibility zones in the part of the area of Kodaikanal taluk, Dindigul District, Tamil Nadu using Remote sensing and GIS. In this Paper frequency ratio based on statistical methods is evaluated by interpretating the observed landslides and their controlling factors .The Most accurate results of frequency ratio is analyzed by using elevation, slope angle, slope aspect, geology, land use, distance to road, distance to drainage maps and confirmed by using previous empirical landslide  zonation data’s.

Keywords: Landslide, Remote Sensing, GIS, Frequency Ratio.