EXTRACTION OF HYDRO MORPHOLOGICAL FEATURES FROM GEO SPATIAL DATASETS A Study for Ghataprabha River Basin, Karnataka
Remote Sensing (RS) Geographical Information System (GIS) and Global Positioning System (GPS) have proved to be an efficient tool to extract information from the spatial datasets like Topographical maps, Satellite imageries about drainage pattern, surface hydrology and hydro morphology of an area. In the present study, an attempt has been made to extract the hydro morphological features of Ghataprabha River Left Bank Canal (GLBC) Command Area (CA) in Karnataka, India from the spatial datasets using SIT. The study region lies between 16deg 12' 16' N to 16deg 30' 1' N latitude and 74deg 45' 18' E to 75deg 44' 58' E longitude of northern Karnataka. The spatial datasets namely, CARTOSAT 1 DEM data, RESOURCESAT 2 LISS III along with Survey of India (SOI) Toposheets at 1:50,000 scale have been used to create various thematic maps of surface morphology with the help of Erdas Imagine and ArcGIS software's for the study area. The resulted drainage pattern, landuse/ landcover, slope, contour and DEM maps of this analysis would be useful in determining the effect of hydro morphological characteristics such as contour, slope of the area and distribution of stream network within the command area which intern useful for planning command area management.