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REMOTE SENSING AND GIS : AN AID TO SELECTING HABITABLE SITE IN CENTRAL HIMALAYA, INDIA

The present study deals with the area around 30 degree 45 minutes N : 78 degree 50 minutes E in the inner belt of the Central Himalayan region where India’s highest Tehri Dam is coming up for the economic benefits of the country but at the same time bringing in the environmental and socioeconomic stresses for the upstream people whose lives would be drastically affected if not made to migrate to nearby safer places. It is in this context that the spatial database created through remote sensing information is converted into computer readable form using the Geographic Information System (GIS) for analyzing the geographically referenced desets of spatial and non-spatial origin. The recently acquired satellite images on 1:50,000 scale have been used to prepare thematic maps depicting the vegetation, watershed, soil cover, geomorphological features, drainage pattern and watershed areas which has helped when integrated with the Intergraph GIS system in distinguishing the localities, in an otherwise difficult terrain, suitable for variety of plantation/activities of economic value where upstream people can be made to migrate without impairing or unbalancing ecosystem.