Abstract

<p justify;"=""> 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 cover and area about 3397 s.qkm. Morphometric analysis and their relative parameters have been quantitatively carried out for the auvery basin, Salem district, Tamilnadu, India. Triangulated Irregular Network (TIN) model used for the identification landscape to determine the objectives such as to establish the dam or related to water resource studies are useful and effective method. Scattered hydrological models clearly suggest (reveal) the spatial variability of the physical properties of basins and it allows spatial assessment of modeled hydrological variables. TIN model for net work analysis of the stream, Hot spot analysis, existing and proposed dams were identified in this study.