Published Paper Details:

Morphometric analysis is very essential and significant in all hydrological investigation for development and management of watershed. Quantitative morphometry plays an important role in the hydrological processes. The Tumkur-Gubbi watershed is situated in Tumkur district of Karnataka between Latitude 13?13?00? to 13?33?30? and Longitude 76?58?30? to 77?16?30?. It forms the parts of Shimsha river basin comprising parts of Tumkur and Gubbi taluks of Tumkur district, Karnataka State. Tumkur-Gubbi watershed is sub divided into Bugadanahalli, Hanumanthapura, Maidala, Sankapura and Halinuru sub-watersheds, Morphometric analysis of the above mentioned sub-watersheds are carried out using LISS-III and ASTER GDEM satellite imageries data and SOI maps are georeferenced and are computed using ArcMap-10.2.2 on 1:50,000 scale. These sub-watersheds show dendritic to sub dendritic drainage pattern with 5th order stream and lower order streams are dominated. Low to moderate drainage density (1.07 to 2.17 km/km2) of all sub-watershed indicates strong permeable material with exalent vegetative cover and moderate relief. The stream frequency of the sub-watershed ranges from 0.74/km2 to 2.65/km2lower value indicates good permeability, vegetation and infiltration capacity than the higher values. The Relief ratio is ranging from 0.009 to 0.023suggesting the intensity of erosion which operates on the watershed slopes. The value of elongation and circulatory ratio shows that all the sub-watersheds having elongated shapes. Therefore, remote sensing is an efficient tool in computing the morphometric parameters.