ISSN: 2578-4994
Authors: Giakoumakis S* and Tigkas D
In this article a modified version of the Simple Water Balance (SWB) model, comprising here three parameters instead of one, was used. The modified model was tested in large-scale river basins in east-central Greece, upstream two hydrometric stations. The available historic runoff records comprised 19 hydrologic years each, on a monthly basis. Thirteen among them were used for calibrating the model, whereas the six subsequent, for validating it. Two different efficiency criteria were used as a measure of performance of the modified model. Their values, calculated for both calibration and validation stages, were close and relatively high. Thus, keeping in mind both the size and complexity of the river basins studied, one can conclude that the modified model, despite its lumped form, fits satisfactorily the historic runoff series.
Keywords: Rainfall-Runoff Model; Large-Scale River Basins; Calibration; Validation
