Comparative Evaluation of GIS Based Landslide Hazard Zonation Maps Using Different Approaches

摘要: Natural hazards like landslides in lesser Himalayan region of district Kullu (HP) India, owe to its typical geomorphic setting, variations relief, precipitation during monsoon, thick forest cover, presence glacier and glacial lakes along the higher reaches various anthropogenic activities. Landslide locations, types factor influencing slope details are collected through field visits past record were used for development inventory. Ancillary data generation different thematic layers (aspect, drainage density, geology, land lineament slope, soil). Weight evidence (WOE), information value(IV) frequency ratio (FR) methods landslide hazard zonation (LHZ) maps which classified into four zones namely high, moderate, low very low. Validation comparison these was done successive rate curve method showed almost similar results, this proved accuracy LHZ (WOE 80.01%, IV81.54% 83.21%).