IRS-LISS-III and PAN data analysis for landslide susceptibility mapping using heuristic approach in active tectonic region of Himalaya |
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Authors: | M A A Patwary P K Champati ray Irshad Parvaiz |
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Institution: | 1.Geological Survey of Bangladesh,Segunbagicha, Dhaka,Bangladesh;2.Indian Institute of Remote Sensing,Dehradun,India |
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Abstract: | Structurally disturbed zones of Himalaya are among the worst landslide affected regions in the world. Although landslides
are induced/triggered either by torrential rain during monsoon or by seismic activity in the region, the inherent terrain
conditions characterize the prevailing basic conditions susceptible to landslides. Using remotely sensed data and Geographic
Information System (GIS), geological and terrain factors can be integrated for preparation of factor maps and demarcation
of areas susceptible to landslides. Moderate to high resolution data products available from Indian Remote Sensing satellites
have been utilized for deriving geological and terrain factor maps, which were integrated using knowledge driven heuristic
approach in Integrated Land and Water Information System (ILWIS) GIS. The resultant map shows division of the area into landslide
susceptibility classes ranked in terms of hazard potential in one of the structurally disturbed zones in western Himalaya
around Rishikesh. |
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Keywords: | |
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