Department Systems Analysis, Integrated Assessment and Modelling

Calibration of watershed-scale models

Calibration of watershed-scale models suffer from a number of conceptual and technical issues, which we believe require a more careful consideration by the scientific community. These include: 1) parameterization, 2) non-uniqueness, 3) objective function definition, 4) use of different optimization algorithms, 5) model conditionality, 6) inadequate definition of the base model, and 7) time constraints. In this ongoing project we address some of these issues in SWAT-CUP, a software for calibration of SWAT model.