Sediment transport during the execution of the pilot nourishment Ameland Inlet
Development of a tool for analysing bathymetric surveys, applied on the pilot nourishment Ameland inlet
M.W. van Rhijn (TU Delft - Civil Engineering & Geosciences)
Z. B. Wang – Mentor (TU Delft - Coastal Engineering)
BC Van Prooijen – Mentor (TU Delft - Environmental Fluid Mechanics)
S. Vos – Mentor (TU Delft - Coastal Engineering)
Harry de Looff – Mentor (Rijkswaterstaat - WVL)
Pieter Koen Tonnon – Mentor (Deltares)
Erik van Dijk – Mentor (Van den Herik)
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Abstract
Within the KustGenese 2.0 research project a 5Mm3 pilot nourishment is created on the ebb-tidal delta of Ameland. For this thesis I was involved in the parties; Van den Herik, the contractor who executed the work, Deltares and Rijkswaterstaat. A tool is created to quickly analyse new surveys in combination with the ships deposit data. The tool is applicable for any other dredging project.
The tool is applied on the 4-6 weekly surveys during the execution of the pilot nourishment. An analyse with the tool gives insight into the morphodynamics of the ebb tidal delta and the location of the pilot nourishment. The sediment transport on the nourishment location is wave dominated, as the sediment transport is limited during calm wave conditions. The sediment transport on the second ebb shield is however tide dominated. During the January 2019 storms an increase in sediment transport is seen on both tidal and wave dominated parts.