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Een geïntegreerde aanpak voor de Durme: sub report 6. Scenarios intertidal areas
Meire, D.; Nguyen, D.; Stark, J.; Vanlede, J. (2024). Een geïntegreerde aanpak voor de Durme: sub report 6. Scenarios intertidal areas. Version 4.0. FH reports, 19_016_6. Flanders Hydraulics: Antwerp. VI, 49 + 6 p. app. pp. https://dx.doi.org/10.48607/237
Part of: FH reports. Flanders Hydraulics: Antwerp. , more
Een geïntegreerde aanpak voor de Durme: sub report 6. Scenarios intertidal areas

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Document type: Project report

Keywords
    Hydraulics and sediment > Hydrodynamics > Current velocities  and patterns
    Hydraulics and sediment > Hydrodynamics > Tides
    Numerical modelling
    Belgium, Durme R. [Marine Regions]
Author keywords
    Sigmaplan

Contact details

Proposer: De Vlaamse Waterweg, more


Authors  Top 
  • Meire, D., more
  • Nguyen, D.
  • Stark, J., more
  • Vanlede, J., more

Abstract
    Within the framework of the Sigma plan, several areas will be attached to the Durme river in the near future.  In this report, the influence of these additional intertidal areas, both in the form of depoldered areas  (Klein Broek, Groot Broek) as well as a flood control area with controlled reduced tide FCA-CRT (De Bunt)  on the tidal characteristics and velocity patterns along the Durme is examined.
    All Sigma areas lead to an increase in the tidal prism in the Durme. Among the three areas, the polder Groot  Broek has the largest influence on the hydrodynamics of the Durme river and De Bunt shows the least effect.  The implementation of Groot Broek alone or together with the other two Sigma areas results in lower high  waters in the Durme river. The largest reduction was calculated for the middle river section where the water  levels are highest along the Durme river. A strong effect of the three Sigma areas on the current velocity was  calculated downstream of the areas with higher peak velocities.
    The peak velocity asymmetry isflood dominated in most of the river section. Activating the polder Klein Broek  and/or Groot Broek weakens the flood dominant tidal asymmetry. The polder Groot Broek shows stronger  effect and even alters the velocity asymmetry to ebb dominance at the river section near the mouth. In terms  of sediment transport, the polder Klein Broek and Groot Broek could slow down the sedimentation process  in the downstream part of the Durme river.

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