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Agenda for the future ‐ Hydrodynamics and sediment dynamics in the Schelde Estuary: sub report 11. Factual data report for frame‐measurements at Drempel van Frederik in December 2015 and January 2016
Vandebroek, E.; Claeys, S.; Plancke, Y.; Verwaest, T.; Mostaert, F. (2017). Agenda for the future ‐ Hydrodynamics and sediment dynamics in the Schelde Estuary: sub report 11. Factual data report for frame‐measurements at Drempel van Frederik in December 2015 and January 2016. Version 3.0. FHR reports, 14_024_11. Flanders Hydraulics Research/Antea Group: Antwerp. XI, 75 + 5 p. appendices pp.

Beschikbaar in  Auteurs 
Documenttype: Projectrapport

Trefwoorden
    Monitoring
    Physics > Mechanics > Fluid mechanics > Hydrodynamics
    Transport > Sediment transport
    ANE, Schelde-estuarium [Marine Regions]

Auteurs  Top 
  • Vandebroek, E.
  • Claeys, S., meer
  • Plancke, Y., meer

Abstract
    Within the framework of the cross-border Flemish-Dutch research program, Agenda for the Future (Agenda voor de Toekomst), field measurements were performed at a number of strategic locations along the Schelde. This report describes a December 2015/January 2016 field campaign to measure hydrodynamics and sediment transport near the sill of Frederik (Drempel van Frederik).

    Two measurement frames consisting of a down-looking Aquadopp, up-looking AWAC, OBS 3+ and a YSI were placed on the bed and left to measure currents and sediment concentrations over a period of six weeks. In order to estimate sediment transport rates using the acoustic backscatter of the ADCP’s and the optical backscatter, two 6-hour calibration campaigns were conducted on January 29th and February 5th. During the calibration, currents, suspended sediment concentration, sediment transport, and grain size were measured using two Aquadopps, a LISST-100X, both OBS 3+ sensors, the YSI, and by collecting water samples for lab analysis.

    The Aquadopp and AWAC data were calibrated and combined (using interpolation in the gap between) to produce a time series of currents and sediment transport for the six week period. This report presents the measurement techniques, calibration methods, and summary of results (including ambient conditions). Accompanying this report are time series of hydrodynamic and sediment transport measurements from the two frames. The results from this campaign (and others) are being used to calibrate and validate numerical models, the results of which will be described in a later report.


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