MORPHOMETRIC ANALYSIS USING REMOTE SENSING AND GIS: A CASE STUDY OF TIMMAPUR WATERSHED, RAICHUR DISTRICT, KARNATAKA
Journal Title: International Journal of Agriculture Sciences - Year 2016, Vol 8, Issue 31
Abstract
The study area is situated in the North-Eastern dry zone of Karnataka at 16º 17´ N latitude and 77º 9´ E longitudes to 16º 23´ N latitude and 77º 18´ E longitudes. The drainage network of watershed was delineated and parameters required for morphometric analysis is computed using ESRI Software ArcGIS 10. The drainage pattern of the study area is dendritic with stream order 5. The bifurcation ratio reflecting geological and tectonic characteristics of the watershed was estimated at 4.36 indicated that the watershed has suffered less structural disturbance. The drainage density of watershed is 5.89 km/km2 indicate the closeness of spacing of channels, thus providing a quantitative measure of the average length of stream channel for the whole watershed. The values of form factor and circulatory ratio of watershed indicate that the watershed is approaching towards the elongated shape. Hence, it is concluded that GIS techniques proved to be a competent tool in morphometric analysis.
Authors and Affiliations
G. SHWETHA
Keywords
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