• Vishalkumar Solanki
• Neelkanth Bhatt
• Dr.Indra Prakash
• Khalid Mehmood
• Kishanlal Darji

The Soil and Water Assessment Tool (SWAT) was used to estimate runoff and sedimentation occurring in the catchment area of Watrak River, Northern Gujrat, India. In the present study, rain fall data of 31 years period (1987-2017) collected from 16 rain gauge (weather) stations was analysed and inputted in the SWAT model. Meteorological data was integrated in the model with topography, Soil and land use thematic maps. Aster Digital Elevation Model (DEM) was used for the delineation of boundary of Watrak River basin (catchment) and extraction of topographic features. In this area, yearly average rainfall varies from121 mm to 1252 mm. It suggests that there are intermittent drought periods within 31years period of study. More than average runoff was estimated by SWAT model study for the year 1990,1994 and 2006 which was 697.17mm,739.96mm, 607.24mm, respectively. Similarly, model results also indicated more than average sedimentation in the year 1990 (176.88 t/ha), 1994 (142.15 t/ha), and 2006 (180.8 t/ha). The average sedimentation estimated for the Watrak basin is 66.003 t ha−1 year−1. The results of the SWAT model study of the Watrak basin suggest good correlation between rainfall and estimated runoff and sedimentation.

SWAT model, Sedimentation yield, Rainfall-runoff

"Application of SWAT model in the Estimation of Runoff and Sedimentation of Watrak River Basin, North Gujarat, India", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.556-566, May-2019, Available :http://www.jetir.org/papers/JETIR1905882.pdf

"Application of SWAT model in the Estimation of Runoff and Sedimentation of Watrak River Basin, North Gujarat, India", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp556-566, May-2019, Available at : http://www.jetir.org/papers/JETIR1905882.pdf