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...

Morphodynamic Modelling in Tidal and Estuarine Environments: A Heuristic Investigation into Methods to Model Medium-Term Meso-scale Morphological Features

The overarching aim of this research is to contribute towards a best practice in modelling meso-scale O(10km), medium-term O(5yrs.) morphological features in Tidal & Estuarine environments. Therefore, various modelling aspects and stages are reviewed. The first pillar argues the need for numerical models in the...

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...

Understanding sediment bypassing processes through analysis of high-frequency observations of Ameland Inlet, the Netherlands

Ameland inlet is centrally located in the chain of West Frisian Islands (the Netherlands). A globally unique dataset of detailed bathymetric charts starting in the early 19th century, and high-resolution digital data since 1986 allows for detailed investigations of the ebb-tidal delta morphodynamics and sediment bypassing over a wide range of...

Saw-tooth bars defined: A case study of the Ameland Inlet

Saw-tooth bar features occur on the downdrift side of the ebb-tidal delta of the Ameland Inlet as well as in front of the island of Ameland. The height difference between bar maximum and trough minimum can amount to 150 cm on the ebb-tidal delta and to about 25 cm in front of Ameland. Their lengths range between 500 mand 2 km. Their width...