Comparison between landslide susceptibility models: A critical review and evaluation

Abstract

Among the various natural hazards, slope failure is the most widespread and damaging hazard (De Smedt in Slope stability analysis using GIS on a regional scale: a case study of Narayanghat Mungling highway section, Nepal, 2005). A sudden failure of the slope is caused by sliding, rolling, falling or slumping. When failure occurs, material is transported down slope until a stable slope condition is re-established. The Darjeeling Himalayan terrain is very high susceptible to slope instability due to a complex geological structure and complex interaction among various processes acting upon the steep mountain southern escarpment slopes. In Darjeeling, the spatial extents of landslides are increasing day by day and causing severe damage to lives and properties. The Balason river basin is not an exception to it.