Abstract:
Remote Sensing techniques have shown great potential in acquiring reliable data concerning the distribution and use of known sources, and in identifying further resources. Landsat, SPOT and IRS satellites provide data in various parts of the electromagnetic spectrum with varying spatial resolutions from 10 to 80 meters.
The advantages of ,satellite based remote sensing are large area coverage, synoptic view and capability to provide information over all accessible and inaccessible regions. Hydrologic mapping, soil moisture estimation, Snowmelt run off forecast, coastal monitoring are some of the proven areas of remote sensing application with very high cost benefit returns. Management of data involves several need based tools like image availability, procurement querry, theme oriented image analysis querry and integrated survey and evaluation.
