CEPD03 Coastal Sediment Transport 1

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Bed shear stress by waves and currentSediment transport by waves and currentLongshore sediment transportCross-shore sediment transport.

Transcript of CEPD03 Coastal Sediment Transport 1

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    Coastal Sediment Transport

    CEPD03

    Lecture 1

    Prof. Dano Roelvink

    Dr. Jan van de Graaff

    http://www.unesco-ihe.org/

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    Contents

    Overview of problems

    Bed shear stress by waves and current

    Sediment transport by waves and current

    Longshore sediment transport Cross-shore sediment transport

    Coastline changes

    Dune erosion Sedimentation in channels and trenches

    Stability of channels and inlets

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    Watch out

    new knowledge: 90s : Bijker formulation

    overestimates effect of waves on bed

    shear stress

    Soulsby (e.g. Dynamics of Marine Sands)

    provides parameterized version of more

    advanced models

    Bijker approach useful to illustrate effects,but watch out when applying in practice.

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    Soulsby parameterisation

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