IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Sediment management and morphodynamics : The effect of unsteady hydrographs and non-uniform sediment transport on morphology of pool-riffle s...
The effect of unsteady hydrographs and non-uniform sediment transport on morphology of pool-riffle sequences
Author : ESMAEEL BAYAT (1), JOSE F. RODRIGUEZ (2), GUSTAVO A. M. DE ALMEIDA (3), PATRICIA M. SACO (4) & ELHAM VAHIDI (5)
The effect of unsteady hydrographs on morphodynamics, especially during flood events, is one of the most important factors for significant morphological variations in fluvial channels. For example, the combination of sorting and flow unsteadiness can help explain how features like pool-riffle sequences can be stable for a long time. In this contribution, field data (Reuter et al., 2003) and 1-D hydromorphological model simulations (de Almeida and Rodríguez, 2011, 2012) that consider fractional sediment transport and sorting are used to determine the effects of asymmetry, peak flow and duration of a hydrograph on the self-maintenance of pool-riffle sequences.
File Size : 682,979 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Sediment management and morphodynamics
Date Published : 30/09/2015
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