Author(s): J. Bastian Holler; Anders G. Andersson; J. Gunnar I. Hellstrom
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Abstract: Hydrological input data can have significant impact on the results of hydraulic simulations. This study compares three methods for generating average annual hydrological datasets – an average flow duration curve (M1), an average annual hydrograph (M2), and an interpolated monthly average hydrograph (M3) – and their effects on simulating riparian areas with an approach based on inundation time. The simulations revealed substantial differences in predicted riparian areas and the extent of vegetation belts. The findings suggest that while averaged hydrographs retain temporal flow information, averaged flow duration curves may be more suitable for ecohydraulic applications where the flow amplitude is more relevant.
Year: 2026