Multi-objective model auto-calibration and reduced parameterization: Exploiting gradient-based optimization tool for ahydrologic model
Multi-objectives can be incorporated into gradient based optimization software to auto-calibrate hydrologic models. Multi-objectives can be incorporated into PEST's auto-calibration processes via the use of TSPROC. Using properly pre-defined parameter values decreases model calibration time, and improves model calibration. A two-step residual based weighting scheme can improve model calibration in biases and low flow simulation in PEST. Equal-weight weighting scheme is good for getting a good calibrated model for stream discharge simulation via PEST.
multi-objectives auto-calibration pest tsproc swat