National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Digital Terrain Analysis (DTA) has been conducted for analyzing the terrain of Bharathapuzha watershed to derive various geomorphometric parameters which are of importance in hydrological applications. This DTA was carried out using various operations particularly the DEM hydro-processing tool box of the Free and Open Source Software (FOSS) GIS software ILWIS. The study area was of an aerial extent of 3844.32 km2. The Digital Terrain Analysis of Bharathapuzha watershed resulted in the creation of slope map, aspect map, drainage density map, stream order map, longest flow length map, sub-catchments map, sub-watersheds of tributaries map etc. The morphometric parameters of Bharathapuzha river basin like Stream order (Nu), Mean stream length (Lsm), Stream length ratio (Rl), Mean bifurcation ratio (Rbm), Drainage density (Dd), Drainage texture (T), Stream frequency (Fs), Form factor (Ff), Length of overland flow (Lg), Relief (R), Relief ratio (Rr), Basin length, Sinuosity Index (SI) have been found.
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