tailieunhanh - QSWAT model calibration and uncertainty analysis for sediment yield simulation in the patapur micro-watershed using sequential uncertainty fitting method (SUFI-2)
The Patapur micro-watershed situated in semi-arid region needs effective management of resources for sustainable agriculture. The Soil and Water Assessment Tool (SWAT), a semi distributed physically based model, was chosen and set up in the Patapur micro-watershed for sediment yield modeling. SWAT-CUP (SWAT-Calibration and Uncertainty Programs) was used for model calibration, sensitivity and uncertainty analysis, following the Sequential Uncertainty Fitting (SUFI2) technique. The model calibration was performed for the period (2009–2014), with initial 3 years of warm up (2009–2012), then, the model was validated for the subsequent 2 years of data (2014– 2006). To assess the competence of model calibration and uncertainty, two indices, the p-factor (observations bracketed by the prediction uncertainty) and the r-factor (achievement of small uncertainty band), were taken into account. | QSWAT model calibration and uncertainty analysis for sediment yield simulation in the patapur micro-watershed using sequential uncertainty fitting method (SUFI-2)
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