MORPHOMETRIC ANALYSIS OF VRISHABHAVATHI WATERSHED USING REMOTE SENSING AND GIS

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Abstract

Vrishabhavathi Watershed is a constituent of the Arkavathi River Basin, Bangalore Urban and Ramanagara District and covers an area of 381.465Km2, representing seasonally dry tropical climate. To achieve the Morphometric analysis, Survey of India (SOI) topomaps in 1:50000 scales are procured and the boundary line is extracted by joining the ridge points. This will serve as study area or area of interest for preparing base map and thematic maps. The recent changes are updated with the help of Remote sensing satellite data. The drainage map is prepared with the help of Geographical Information System tool and morphometric parameters such as linear, aerial and relief aspects of the watershed have been determined. These dimensionless and dimensional parametric values are interpreted to understand the watershed characteristics. From the drainage map of the study area dendritic drainage pattern is identified. Strahler (1964) stream ordering method is used for stream ordering of the watershed. The drainage density of the watershed is 1.697 km/km2.

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. P. T. A. (2013). MORPHOMETRIC ANALYSIS OF VRISHABHAVATHI WATERSHED USING REMOTE SENSING AND GIS. International Journal of Research in Engineering and Technology, 02(11), 514–522. https://doi.org/10.15623/ijret.2013.0211077

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