Morphometric Analysis of a semi-arid region using GIS
Journal Title: International Journal of engineering Research and Applications - Year 2017, Vol 7, Issue 6
Abstract
In the present study an attempt has been made to study the morphometric parameters and drainage properties of a watershed of semi-arid (khad) region located at Hoshiarpur district of Punjab (India). Morphometric analysis has been carried out on the watershed of 174.385 km2 area using ESRI Arc GIS 10.0 software and CartoSAT-1 DEM data of spatial resolution 2.5 m obtained from NRSC (National Remote Sensing Center), Hyderabad for evaluating various morphometric parameters. On the basis of linear, areal and relief aspects various morphometric parameters were evaluated using Arc GIS 10.0 software. Hydrology tool under Spatial analyst tool in ArcGIS10.0 has been used for generating the watershed boundary, flow accumulation, drainage network and stream order map. Area and the perimeter have been calculated using ArcGIS 10.0 and it comes out to be 174.385 Km2 and 77.539 km respectively. Drainage map of the study area shows dendritic to sub-dendritic drainage pattern. The study reveals that the stream number decreases with the increase in the stream order, the mean bifurcation ratio of the watershed is 4.35 which means that the watershed falls under normal basin category, the elongation ratio of the watershed is 0.604 which indicates that it is less elongated, the circularity ratio of the watershed is 0.365 indicating its elongation and highly permeable homogeneous materials. The present study shows the competency of remotely sensed satellite imagery coupled with GIS for morphometric analysis of a particular region and is useful for the watershed management, identification of critical zones and for implementing various soil and water conservation practices in that region or watershed.
Authors and Affiliations
Rohit Kumar Arya, Virender Kumar Sarda
Keywords
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- EP ID EP391390
- DOI 10.9790/9622-0706010817.
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