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Modelling Belgian coastal zone and Scheldt mouth area: sub report 5. Progress report: Scenarios Vlaamse Baaien and model developments
Kolokythas, G. K.; De Maerschalck, B.; Vanlede, J.; Mostaert, F. (2017). Modelling Belgian coastal zone and Scheldt mouth area: sub report 5. Progress report: Scenarios Vlaamse Baaien and model developments. Version 5.0. FHR reports, 15_068_5. Flanders Hydraulics Research: Antwerp. XI, 45 + 25 p. appendices pp.
Available in  Authors 
Document type: Project report
Keywords
    Earth sciences > Geology > Geomorphology > Coastal morphology
    Hydraulics and sediment > Climate change > Sea-level rise
    Hydraulics and sediment > Hydrodynamics > Current velocities  and patterns
    Hydraulics and sediment > Hydrodynamics > Tides
    Hydraulics and sediment > Hydrodynamics > Water levels
    Numerical modelling
    ANE, Belgium, Belgian Coast [Marine Regions]; ANE, Belgium, Flemish Banks [Marine Regions]
    Marine/Coastal
Project Top | Authors 
  • Vlaamse Baaien Modellering Kustzone
Contact details

Proposer: Vlaams-Nederlandse Scheldecommissie (VNSC), more

Authors  Top 
  • Kolokythas, G. K., more
  • De Maerschalck, B., more
  • Vanlede, J., more
  • Mostaert, F., more
Abstract
    In the present report, the work that has been done in the framework of ‘Vlaamse Baaien’ Masterplan in the first six months of the three-year contract of the position ‘Modelleur in het kader van project 15_068: Modellering getij, sedimenttransport en morfologie voor de Belgische kustzone volgens gekend projectplan’, is presented. Part of the work has been reported to Maritime Access before as individual FHR memos. The present report is an extended compilation of these memos. Additionally to the memos the progress regarding to the implementation of an advanced mesh generation toolbox is added to the report. The report is internally revised according to the FHR Document Quality system.

    First, results from Telemac3D hydrodynamic simulations for the case of a seaward coastal defense line spanning along the entire Belgian coast, are presented. To this end, two three-dimensional unstructured Telemac models are utilized, namely the Zeebrugge (ZB) model, and the Scaldis model, for comparison of the numerical results. In addition, the perspectives of a new finite element mesh generator, named GMSH, are investigated through a successful testing in the construction of a qualitative grid for one of the investigated scenarios.

    Next, the sea level rise effect on the hydrodynamic flow at the Belgian coast and especially on the Zeebrugge port accessibility is investigated again by means of the Zeebrugge Telemac3D model. Three different scenarios of future sea level rise are considered, i.e. a moderate sea level rise of 60 cm by the year 2100, a warm scenario with sea level rise of 90 cm and a worst case scenario of sea level rise scenario of 200 cm. The main conclusion is that the impact of sea level rise on the port accessibility is limited. Only in the worst case scenario a significant impact on the LNG carriers access (with respect to the maximum allowed cross currents 1.5 kn) is observed.

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