Ecology, Environment and Conservation Paper

DERIVING OF TOPOGRAPHICAL ATTRIBUTES USING SRTM DEM FOR TIRUPPUR DISTRICT, TAMIL NADU, INDIA

S. Janarth, R. Kumaraperumal, S. Pazhanivelan and K.P. Ragunath

Abstract

The earth’s surface is covered in a variety of landforms that are generated as a result of natural geomorphologic processes. Our major goal is to create a landform classification map for Tamil Nadu’s Tiruppur district, India. A digital elevation model (DEM) with a resolution of 30 meters is used as input data for categorization. With the advancement of computer technology and the advent of Geographical Information Systems (GIS), it is now possible to extract relevant information from topographical data in a simple and faster manner. Decision tree is a non- parametric tree structure and the algorithm given by Quinlan was used.