Analysis of Digital Elevation Model in Vaniyar River Basin, South India Using SRTM Data and GIS Techniques

Abstract

In the present study, Digital Elevation Model (DEM) is used for the analysis of slope and aspects. The elevation features of a hilly terrain can be easily investigated using Shuttle Radar Topography Mission (SRTM) data and GIS methods. Hence, for the present study, SRTM data were downloaded and used. The study area covers an area of 982.25 km 2 in Vaniyar river basin, South India. The result of elevation variation using DEM was analysed. Using this DEM output as input in ArcGIS to prepare the slope and aspect details of the study area were attempted. This output has immense application in proper planning and management of various natural resources and also very useful for the natural disaster management studies.