Delineation of potential landslide prone zones using Remote Sensing and GIS Techniques: A case study from north western part of Aizawl city, Mizoram, India

A landslide susceptibility map depicts the areas that have potential for land sliding. The present study is carried out to predict the spatial distribution of future landslides within the study area. The satellite imagery of IRS LISS III of 23.5 meters spatial resolution, CARTOSAT DEM of 30 meters resolution along with topographical sheets of 1:50,000 scale prepared by Survey of India (SoI) has been used for deriving baseline information on various causative factors maps like slope, aspect, drainage density, structure, lithology and land use/land cover. The various causative factor maps, which may have influence on the landslide event are arranged and consolidated to set up the potential zone map. The numerical values of 0 to 10 are allocated to different causative variables for instability of slope. It is observed that 10.83% of the study area is Low Hazard Zone, 84.84 % is Medium Hazard Zone and only 2.32 % show High Hazard Zone.