Thesis small scale equilibria in tidal basins: A data-analysis and case study in the Ameland Inlet

The behaviour of tidal basins has been predicted using a modelling approach in which a morphological equilibrium for an entire basin was used frequently in the past. Because tidal basins have, to an certain extend, a fractal nature, it is expected that this approach could be used with a morphological equilibrium for subbasins as well.<br/><br/...

Morphodynamic Modelling of the Ameland Ebb-Tidal Delta: An Assessment of the 2018 - 2019 Pilot Nourishment

Ebb-tidal deltas play a key role in the morphology of barrier coastlines and tidal inlet systems as they serve as a natural source of sediment. They are typified by a dynamic morphology that interacts with the adjacent coastlines and sponsors a unique ecological habitat. Under increasing socio-economic, ecological and climate-induced constraints...

Sediment bypassing at Ameland inlet: And the role of an ebb-tidal delta nourishment

A large part of the Dutch coast, the barrier islands in the Wadden Sea included, would be eroding if the deficit in the total sediment budget was not compensated for through nourishments. Ebb-tidal deltas have an important function within the coastal system that make them of interest for coastal defence as a source and transport path for sand to...

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

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...

Exploring the relative importance of wind for exchange processes around a tidal inlet system: The case of Ameland Inlet

Considering scenarios of sea level rise, the sediment budget of the Wadden Sea is of interest for both coastal safety and for the maintenance of values of this unique environment. Sand nourishments are foreseen on the ebb-tidal deltas of the Wadden Sea to increase the sediment budget, which requires us to predict the fate of the nourishment....

Spatial distribution of surface velocities on the ebb tidal delta near Ameland

Drifters equipped with GPS-trackers have been widely used to investigate surface velocities in a wide range of coastal and oceanic settings. A detailed description of a new, cell-phone based, budget drifter system is given, along with an overview of the potential error sources and the magnitude of these sources. Drag related “windage” errors...

Nourishment strategies for the Ameland Inlet

Sea level rise poses challenges to the tidal inlet systems of the Wadden Sea, including the barrier islands. If no measures are taken, the shorelines of the islands will retreat and the basins may drown. In the Ameland Inlet, the Boschplaat at the eastern tip of Ameland and Bornrif at the western tip of Terschelling are currently shrinking. <br/...

Impact of relative sea level rise on the Amelander inlet morphology

The aim of the Strength and Loading of Coastal Structures (SBW) project is to improve the models to derive the Hydraulic Boundary Conditions which are determined along the Dutch coast once per five years. The Amelander inlet is chosen as area of interest in the Wadden Sea. As the Amelander Inlet is morphologically a very active area, this study...