An optical instrument which detects the light attenuation in sediment-laden flows has been developed to measure the instantaneous and time-average suspended concentration of cohesive sediments. In a flume test with natural muds, the device showed that the instantaneous sediment concentration oscillated with the waves but that the amplitude decreased rapidly with the distance above the mud bed. Strong sediment motion was found near the benthic boundary layer. This indicates a weak vertical turbulent diffusion in the upper portion of the water column in a pure wave erosion process. It is concluded that the probe design can be easily modified and the apparatus can be deployed for both laboratory and field measurements.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Laboratory measurements of instantaneous sediment concentration under waves


    Weitere Titelangaben:

    Labormessungen der momentanen Sedimentkonzentration unter Wellen


    Beteiligte:
    Maa, J.P. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1988


    Format / Umfang :

    4 Seiten, 11 Quellen



    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




    Laboratory Measurement of Spatial and Temporal Suspended Sediment Concentration Under Waves

    Hughes, Steven A. | HENRY – Bundesanstalt für Wasserbau (BAW) | 1988

    Freier Zugriff



    Laboratory Measurements Of Sediment Transport On Transverse Sloped Beds

    Wiesemann, Jens-Uwe / Mewis, Peter / Zanke, Ulrich et al. | HENRY – Bundesanstalt für Wasserbau (BAW) | 2004

    Freier Zugriff

    Instantaneous pressure measurements on a spherical grain under threshold flow conditions

    Celik, A. O. / Diplas, Panayiotis / Dancey, C. L. | HENRY – Bundesanstalt für Wasserbau (BAW) | 2010

    Freier Zugriff