Nature Environment and Pollution Technology

K. G. Avinash ¹, K. G. Ashamanjari ²

Affiliations
1 Asian Nature Conservation Foundation, Innovation Centre, Indian Institute of Science, Bangalore-560 012, Karnataka, IN
2 Department of Studies in Geology, Manasagangotri, University of Mysore, Mysore-570 006, Karnataka, IN

Abstract

For landslide susceptibility mapping, this study applied frequency ratio to Aghnashini river catchment of Uttara Kannada district of Karnataka, India using Geographic Information System (GIS). Landslide locations were located in the study area by intensive field surveys; and a spatial database was constructed from topographic maps, soil type, forest cover, geology and land cover. The frequency ratio factor's rating for landslide susceptibility mapping was evaluated. Then the landslide susceptibility map was verified and compared with known landslide locations. The method can be used to reduce hazards associated with landslides and to landuse change planning.

Keywords

Landslide Susceptibility, Aghanashini River, Geographic Information System (GIS).

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