Geo-Spatial Analysis of Landslide Vulnerability Mapping in The Nilgiris District, Tamil Nadu, India

Landslide is an important natural hazard during monsoon season in The Nilgiris Mountains of South India. This paper has appraises the Vulnerability of Landslide for The Nilgiris District, Tamil Nadu by using Geographic Information System (GIS) and Remotely Sensed data. There are different methods has been adopted for Landslide Vulnerability Zonation Mapping (LVM) resulting into differing types of outputs. In this paper a new method was attempted for The Nilgirish District, Tamil Nadu by assigning weightages to five Geosystem parameters viz: Lithology, Lineament Density, Geomorphology, Slope and Land use / Land cover and their sub-classes on the basis of their responses to landslides and integrated such weighted five Zones to arrive finally at a Landslide Vulnerability Map.