Digital elevation model (dem) for Cauvery river basin in Salem district, Tamil nadu, India using spatial technology

The present study area (Cauvery river basin) lies between 77o 43’ 54’’ E to 79o 35’ 55’’ E longititude and Latitude 10o 10’ 0’’ N to 11o 10’ 6’’ N. The basin area is demarcated from the survey of Indian topographical map No.58 I/2 (1:50, 000, 1972) and it covers the area about 3397 sqkms. Morphometric analysis and their relative parameters have been quantitatively carried out for the Cauvery basin, Salem district, Tamilnadu, India. Digital elevation model (DEM) is used to determine the features of drainage networks and slope of drainage network and to determine the characteristics of basins. The foregoing analysis clearly indicates some relations among the various attributes of the morphometric aspects of the basin helps to understand their role in sculpturing the surface of the region.