Morphometric Analysis of Tengli Micro-Watershed using Remote Sensing and GIS
Journal Title: International Journal of Agricultural Science and Research (IJASR) - Year 2017, Vol 7, Issue 5
Abstract
The study was conducted in Tengli micro-watershed and was delineated on the Arc GIS platform. The study area is falling under the Survey of India toposheet of E43R3 and E43R4 (1:50,000). The drainage pattern of the study area is dendritic with stream order III and lower streams order dominated in the Tengli watershed. The bifurcation ratio (Rb) was 2.75 which show that on undistorted geologic structure (Basalt and lime stone complex). The circulatory ratio (Rc) (1.05), Compactness Co-efficient (Cc) (1.08) and Farm factor Rf (0.86) value indicates watershed was more circular in shape, less elongated with higher peak flows for shorter duration precipitation with high intensity. The drainage density (1.64 km km-2) and stream frequency (1.41 No.km-2) indicates the watershed is having impermeable sub-surface material and sparse vegetation. Estimated value of relief (H) was 32 m, based on which relief ratio (S') and Stream slope (S) were found to be 0.011 and 5.23 m km-1 respectively. This is an indication of possibly moderate soil erosion.
Authors and Affiliations
Neelambika . , U. Satishkumar, P. Balakrishnan, B. S. Polisgowdar, K. Basavaraj
Keywords
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