GEO-SPATIAL DATA FOUNDATION FOR DAM SITES

Remote Sensing and GIS provide a solid geospatial data foundation, which is suitable for addressing questions on choosing the best sites of dams. To accomplish this, there is a need to understand geospatial processes of gathering, organizing and analyzing data using Remote Sensing (RS) and GIS. On the other hand, theoretical and practical backgrounds are needed to understand linkages, relationships and thresholds that allow faster identification of the study area. DEMs are essential for topographic characterization by representing land surface, hydrological boundaries and terrain attributes, such as slope and aspect. In this work it has been studied for the generation of Digital Elevation Model (DEM) and the resulted DEM is used to generate the Orthoimage and to demark the land use/ land cover features and also for drainage pattern for the catchment area of hydro project.