SWAT-CUP is a Calibration Uncertainty Program for SWAT. It can also be used to perform validation and sensitivity analysis.

SWAT-CUP is a program for calibration of SWAT models. The program could be used to perform calibration, validation, sensitivity analysis (one-at-a-time, and global) and uncertainty analysis. The program links SUFI2, GLUE, ParaSol, MCMC, and PSO to SWAT. Any of the procedures could be used to perform calibration and uncertainty analysis of a SWAT model.
SWAT-CUP also has graphical modules to observe simulation results, uncertainty range, sensitivity graphs, watershed visualization using Bing map, and statistical reports.

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