Determination of Surface Runoff in Amreli District Gujarat, India using GIS based SCS Curve Number Method
Author(s):
NIdhi B. Chauhan , L.D. College of Engineering Ahmedabad; M. S. Gadhavi, L.D. College of Engineering; Indra Prakash, BISAG; Khalid Mehmood, BISAG
Keywords:
Surface Runoff, GIS, Amreli, SCS-CN
Abstract:
Among the most basic challenges of hydrology are the prediction and quantification of runoff of the area. The runoff curve number (CN) is a key factor in determining runoff is the SCS (Soil Conservation Service) based hydrologic modeling method. In this paper soil conservation system (SCS) curve number method is used for rainfall-runoff estimation that consider parameters like slope, vegetation cover, area of watershed. SCS-CN provides empirical relationship for estimating surface runoff as a function of soil type and land use. Surface runoff is calculated for the Amreli district in Gujarat, India where heavy Rainfall occurred in June 2015 using the GIS-based SCS-CN method. The estimated composite curve number for the entire Amreli District is about 87. The present study clearly demonstrates that that the integration of GIS with the SCS-CN method provides a powerful tool for estimating surface runoff in Amreli District.
Other Details:
| Manuscript Id | : | IJSTEV2I11188
|
| Published in | : | Volume : 2, Issue : 11
|
| Publication Date | : | 01/06/2016
|
| Page(s) | : | 367-372
|
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