A vertical sorting model for rivers with non-uniform sediment and dunes

Astrid Blom

    Research output: ThesisPhD Thesis - Research UT, graduation UT

    152 Downloads (Pure)

    Abstract

    Vertical sorting fluxes and the resulting organisation of grain size fractions over bed elevations, i.e. the vertical sorting profile, influence bedform dimensions and the bed surface composition. As a result, they will affect the bed roughness, the rate and composition of the sediment transport, the large-scale river morphology, and water levels during floods. An important problemof presentmorphologicalmodel systems for rivers with non-uniform sediment is their neglect of vertical sorting fluxes other than through net aggradation or degradation. The objective of the present study is to develop a method in order to better account for vertical sorting processes in the river bed.
    Original languageEnglish
    Awarding Institution
    • University of Twente
    Supervisors/Advisors
    • de Vriend, H.J., Supervisor
    • Parker, G., Supervisor, External person
    • Ribberink, J.S., Co-Supervisor
    Award date6 Mar 2003
    Place of PublicationEnschede
    Publisher
    Print ISBNs90-901-6663-7
    Publication statusPublished - 6 Mar 2003

    Keywords

    • METIS-209615

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