Application of RS and GIS Techniques in the Analysis of Morphometric Characteristics of Upper Berach River Basin, Rajasthan State

Abstract

Natural resource conservation and its sustainable planning and development of a river basin can be done satisfactory by morphometric characteristics analysis. In the present study, Survey of India toposheets no. 45H/9, 45H/10, 45H/13, 45H/14, 45L/1 and 45L/2, were used to evaluate hydro morphometric characteristics (viz. Linear, aerial and relief) of Upper Berach river basin in GIS environment using the ARC GIS 10.1 software. Results reveals that the total area of river basin covers 1095.98 km2, which divided in two sub-basins, covers the area of 431.08 and 664.90 km respectively. Dendritic to sub-dendritic drainage pattern with stream orders of sub-basins, are found with ranged from VI to VII orders. Sub-basin stream length ratios are changing haphazardly which is indicating differences in slope and topographic conditions. Mean bifurcation ratio values vary from 3.28 to 4.13. Drainage density shows variation from 1.77 to 1.84 km/km in the whole river basin and sub-basins. The values of form factor and circularity ratio are varied from 0.15 to 0.23 and 0.24 to 0.47, in the whole river basin and sub-basins The ruggedness number of river basins, sub-basin-1 and sub-basin-2 are 0.83, 0.40 and 0.83.