1Bhaskaracharya Institute for Space Application &Geo-informatics, Gandhinagar, Gujarat-382 007, India
2University of Transport Technology, Hanoi-100000, Vietnam
Lukhdhirji Engineering College, Morbi, Gujarat-363 642, India
*E-mail: indra52prakash@gmail.com
Online published on 8 March, 2021.
Main objective of the study is to estimate the runoff of Machhu and Watrak river basins of Gujarat for the planning and management of catchments. The Soil Conservation Service (SCS) -Curve Number (CN) method was used to estimate runoff. For Machhu river basin threshold value of rainfall is 250 mm and for Watrak river basin 400 mm. This difference of threshold values is due to different topography, geology and soil conditions of these two catchment areas. Regression analysis of observed rainfall and simulated runoff of these two river basins indicated good correlation (R2 : 0.85 and 0.735). The present rainfall-runoff study of the two widely separated river basins suggestsapplicability of simple SCS-CN method in different areas having different geo-environmental conditions.
SCS-CN, AMC, Regression analysis, Machhu, Watrak, Runoff, Curve number
