Landslide Susceptibility Assessment Due to Construction of Buildings in Garhwal Area Using GIS

Abstract

This paper presents the effect of building construction in hilly areas of Garhwal Himalaya (Dunda to Bhatwari) and its susceptibility with respect to the landslides. For susceptibility, the first step is to prepare the landslide hazard zonation map in terms of various thematic layers like slope, drainage, land use and land cover, geology, structure and roads using GIS and remote sensing. Susceptibility of the element like the construction of buildings and roads has been calculated with respect to LHZ using the weighted linear combination method. This will help in planning future developmental activities and according to which corrective measures can be taken to mitigate the disaster.