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dc.contributor.authorRovira, Albert
dc.contributor.authorNúñez-González, Franc
dc.contributor.authorIbañez, Carles
dc.contributor.otherProducció Animalca
dc.date.accessioned2019-01-16T17:29:23Z
dc.date.available2019-06-25T09:42:20Z
dc.date.issued2018-03-05
dc.identifier.citationRovira, Albert, Francisco Núñez-González, and Carles Ibañez. 2018. "Dependence Of Sediment Sorting On Bedload Transport Phase In A River Meander". Earth Surface Processes And Landforms 43 (10): 2077-2088. Wiley. doi:10.1002/esp.4373.ca
dc.identifier.issn0197-9337ca
dc.identifier.urihttp://hdl.handle.net/20.500.12327/163
dc.description.abstractIt is widely recognized nowadays that there are at least two different phases of bedload sediment transport in gravel‐bed rivers. However, the transition between these phases is still poorly or subjectively defined, especially at bends in rivers, where cross‐stream sediment transport can strongly influence changes in the texture of the transported sediment. In this paper, we use piecewise models to identify objectively, at two points in the cross‐section of a river bend, the discharge at which the transition between bedload transport phases occurs. Piecewise models were applied to a new bedload data set collected during a wide range of discharges while analysing the associated changes in sediment texture. Results allowed the identification of two well‐differentiated phases of sediment transport (phase I and phase II), with a breakpoint located around bankfull discharge. Associated with each phase there was a change in bedload texture. In phase I there was non‐dominance in the transport of fine or coarse fractions at a particular sampling point; but in phase II bedload texture was strongly linked to the position of the sampling point across the channel. In this phase, fine particles tended to be transported to the inner bank, while coarse sizes were transferred throughout the middle parts of the channel. Moreover, bedload texture at the inner sampling point became bimodal while the transport of pebble‐sized particles was increasing in the central parts of the river channel. It is suggested that this general pattern may be related both to secondary currents, which transfer finer particles from the outer to the inner bank, and to the progressive dismantling of the riverbed surface layer. Copyright © 2018 John Wiley & Sons, Ltd.ca
dc.format.extent36ca
dc.language.isoengca
dc.publisherWileyca
dc.relation.ispartofEarth Surface Processes and Landformsca
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internationalca
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.titleDependence of sediment sorting on bedload transport phase in a river meanderca
dc.typeinfo:eu-repo/semantics/articleca
dc.description.versioninfo:eu-repo/semantics/acceptedVersionca
dc.rights.accessLevelinfo:eu-repo/semantics/openAccess
dc.relation.projectIDMINECO/Programa Nacional de Proyectos de Investigación Fundamental/CGL2008-01442/ES/Modelización de los cambios en la hidrodinamica del flujo y el transporte de sedimentos por la aparición masiva de macrofitos en el tramo bajo del rio Ebro/ca
dc.subject.udc574 - Ecologia general i biodiversitatca
dc.identifier.doihttps://doi.org/10.1002/esp.4373ca
dc.contributor.groupAigües Marines i Continentalsca


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Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by-nc-nd/4.0/