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DOI Prefix 10.20431 |
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Using SWAT Model to Determine Runoff, Sediment Yield in Maroon-Dam Catchment
Nasrin Zalaki-Badi1,Saeid Eslamian2,Gholam-Abbas Sayyad3,Seyed-Ebrahim Hosseini4,Mehdi Asadilour5,Kaveh Ostad-Ali-Askari6,Vijay P.Singh7,Shahide Dehghan8
2.Department of Water Engineering, Isfahan University of Technology, Isfahan, Iran.
3.Department of Soil Science, Faculty of Agriculture, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
4.Khuzestan Water and Power Authority (KWPA), Ahvaz, Iran.
5.Department of irrigation, Ahvaz branch, Islamic Azad University, Ahvaz, Iran.
6.Department of Civil Engineering, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran.
7.Department of Biological and Agricultural Engineering & Zachry Department of Civil Engineering, Texas A and M University, 321 Scoates Hall, 2117 TAMU, College Station, Texas 77843-2117, U.S.A.
8.Department of Geography, Najafabad Branch, Islamic Azad University, Najafabad, Iran.
Citation :Nasrin Zalaki-Badi,et.al, Using SWAT Model to Determine Runoff, Sediment Yield in Maroon-Dam Catchment, International Journal of Research Studies in Agricultural Sciences 2017,3(12) : 31-41
The Soil and water assessment tool (SWAT) model is a flexible, physically distributed model was developed as a river basin scale to quantify and predict runoff and transportation from watersheds and river basins. The semi-automated Sequential Uncertainty Fitting (SUFI2) calibration process built in SWAT calibration and uncertainty program (SWAT-CUP) were used to calibrate the model parameters using time series of flow and sediment load data of 1994 to 2002 and validated with the observed data from years 2002 to 2007. The performance of the model was evaluated using statistical and graphical methods to assess the capability of the model in simulating the runoff and sediment yield for the study area. The result showed relatively good fitness between measured and simulated discharge and sediment. The Nash Sutcliffe efficiency and R2 were nearly 70% for discharge and 76% for sediment load. Overall, simulation of runoff and sediment is satisfactory by using the SWAT model.