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Scholars Journal of Engineering and Technology | Volume-1 | Issue-02
Simulation of streamflow using soil and water assessment tool (SWAT) in Meenachil river basin of Kerala, India
Celine George, E. J. James
Published: Feb. 26, 2013 |
101
348
DOI: 10.36347/sjet
Pages: 68-77
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Abstract
The main objective of the study was to test the performance and feasibility of SWAT 2005 model for
prediction of streamflow in Meenachil river basin, Kerala. The model was calibrated and validated for three gauging
stations, viz., Peroor, Pala and Cheripad. The model was autocalibrated for a period of 13 years (1982 – 1994) using
Swat Cup software. The SuFi2 algorithm in Swat Cup was adopted for autocalibration of the model. The calibrated
model was validated for the three gauging stations for a period of 10 years (1995 – 2004). The landuse map used for the
calibration period was for the year 1990 and that for the validation period was for the year 2000. The simulated monthly
streamflow has Nash Sutcliffe efficiency value of 0.80, 0.78 and 0.80 for the calibration period for the Peroor, Pala and
Cheripad stations respectively. The model was successful in simulating streamflow during validation period as indicated
by Nash Sutcliffe efficiency value of 0.75, 0.78 and 0.80 and R2 value of 0.84, 0.83 and 0.85 respectively for Peroor, Pala
and Cheripad stations. The model results in good performance showing that it is feasible for predicting streamflow in
Meenachil river basin under changing landuse and climate conditions