Morphometric analysis of nanjangud taluk, Mysore District, Karnataka, India using GIS techniques

Mahadevaswamy, G. and Nagaraju, D. and Papanna, C. and Nagesh, P.C. and Rao, K. (2012) Morphometric analysis of nanjangud taluk, Mysore District, Karnataka, India using GIS techniques. Nature Environment and Pollution Technology, 11 (1). pp. 129-134. ISSN 09726268

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Abstract

An attempt has been made to study drainage morphometry and its influence on hydrology of Nanjanagud taluk. For detailed study, data for preparing DEM, aspect grid and slope maps, geographic information system (GIS) was used in evaluation of linear, areal and relief aspects of morphometric parameters. The study reveals that the elongated shape of the area is mainly due to guiding effect of thrusting and faulting. In all 41 sub-basins in Nanjangud taluk have been selected for the study. Quantitative morphometric analysis has been carried out for linear, relief and aerial aspects for all the sub-basins. The streams up to fourth order can be seen in all the sub-basins. The morphometric analysis reveals that Hullahalli sub-basin has lower value of drainage density, stream frequency, elongation ratio, relief ratio and infiltration number indicating highly permeable sub-soil materials under dense vegetation cover. Except Hullahalli sub-basin, all the other sub-basins show fractured, resistant, permeable rocks and drainage network seems to be not affected by tectonic disturbances.

Item Type: Article
Additional Information: cited By 0
Uncontrolled Keywords: Dense vegetation; Drainage characteristics; Drainage density; Drainage networks; Elongation ratio; Fourth order; Geographic information systems (GIS); Guiding effect; Karnataka; Morphometric analysis; Morphometric parameters; Morphometry; Nanjanagud taluk; Permeable rocks; Subbasins; Tectonic disturbances, Catchments, Geographic information systems, faulting; GIS; hydrological modeling; morphometry; permeability; quantitative analysis; river basin; streamwater; vegetation cover, India; Karnataka; Nanjangud
Subjects: Faculty of Science > Earth Sciences > Geology
Divisions: Jnana Bharathi / Central College Campus > Department of Geology
Depositing User: Mr. Kirana Kumar D
Date Deposited: 04 Apr 2016 09:33
Last Modified: 04 Apr 2016 09:33
URI: http://eprints-bangaloreuniversity.in/id/eprint/2761

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