Multivariate Geomorphometric Approach to Prioritize Erosion Prone Watershed of Upper Cauvery Karnataka

Mohammed Badiuddin Parvez¹ , M Inayathulla²

Section:Research Paper, Product Type: Journal-Paper
Vol.6 , Issue.1 , pp.7-17, Oct-2019

Online published on Oct 31, 2019

Copyright © Mohammed Badiuddin Parvez, M Inayathulla . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
Prioritization of watershed has Grabbed up significance in watershed management. Morphometic investigation is been usually applied to organize the watershed. In the present study upper cauvery of Karnataka with an area of 10874.65 km2 and highest order stream of 8 was considered. The area was divided into Eight Watersheds. Various morphometric parameters namely Bifurcation ratio(Rb), Drainage density (Dd), Stream frequency(Ns), Texture ratio(T), Form factor(Rf), Circularity ratio(Rc), Elongation Ratio(Re), length of overland flow, shape factor(Bs), compactness ratio (Cc) has been determined for each watershed and allotted position on premise of relationship as to arrive at a Compound value for final ranking of watershed. The morphometric parameters ranges between Rb (3.416-5.0442), Dd (1.377-1.463), Ns (1.397-1.579), T (5.235-8.540), Rf (0.233-1.082), Rc (0.179-0.447), Re (0.545-1.173), Cc (1.496-2.365), Lof (0.341-0.363), and Bs (0.924-4.284). It is found that the 38.83 % of area falls under high priority category where as 42.12% of area falls under this Medium category and 19.05% of the area falls under low catergory

Key-Words / Index Term :
GIS, DEM, Morphometric analysis, Watershed, Priority, Compound Factor

References :
[1] Horton R.E.(1945). Erosional Development of streams and their drainage basins, Hydro physical approach to quantitative morphology. Geological Society of American Bulletin. 56: 275-370.
[2] Horton,R.E.(1932).Drainage Basin Characteristics. Transfixions of Am.Geophysics.Union, 13:350
[3] Mohammed Badiuddin Parvez, M Inayathulla “Prioritization Of Subwatersheds of Cauvery Region Based on Morphometric Analysis Using GIS”, International Journal for Research in Engineering Application & Management (IJREAM), Volume: 05 Issue: 01, April -2019.
[4] Mohammed Badiuddin Parvez, M Inayathulla “Modelling of Short Duration Isopluvial Map For Raichur District Karnataka”, International Journal for Science and Advance Research in Technology (IJSART), Volume: 05 Issue: 4, April -2019.
[5] Mohammed Badiuddin Parvez, and M .Inayathulla. "Morphometry, Hypsometry Analysis and Runoff Estimation of Aam Talab Watershed Raichur, Karnataka" International Journal Of Advance Research And Innovative
Ideas In Education Volume 5 Issue 3 2019 Page 1713-1727 [6] Strahler.A.N(1964) : Quantitative geomorphology of drainage basin sand channel networks, section 4II, in: Handbook of Applied Hydrology, edited by V.T.Chow, Mc GrawHill:439
[7] Vijith, H and Sateesh, R. (2006). GIS based morphometric analysis of two major upland Sub-watershed of Meenachil river in Kerala. Journal of Indian society of Remote Sensing. 34(2): 181-185.