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Hidroloska mjerenja zavrsni4/15/2023 The Water Management Basis (WMB) for the Vrbas River Basin in Bosnia and Herzegovina envisages multiple reservoir-type dams that should serve as an active flood protection measure, besides other purposes. Based on these results, recommendations for event-based modeling are given. The results indicate that model parameters vary across the events, and that parameter transfer generally leads to considerable errors in hydrograph peaks and volumes, with the exception of simulation of summer events with ?spring? parameters. To assess model transferability, its applicability for simulation of flood events which are not considered in the model calibration, a cross-validation is performed. The optimal parameter sets of each group are obtained by averaging the optimal parameters for individual events within the group. Hence the events are assigned to either ?present? or ?past?, and ?spring? or ?summer? group. These events are from two distinct periods and two seasons with different. Five flood events observed at the Mercez stream gauge were available for modelling purposes. This paper describes an application of the HEC-HMS hydrologic model for simulations of flood hydrographs in the Lukovska River basin. Hydrologic models are important for effective water resources management at a basin level.
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