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Tidal asymmetry in the Dutch Wadden Sea
| Content Provider | Semantic Scholar |
|---|---|
| Author | Stive, Marcel J. F. Wang, Zheng |
| Copyright Year | 2002 |
| Abstract | The study concerns the propagation of the tidal wave in the Dutch Wadden Sea and in particular the tidal asymmetry and the influence of human-and natural interferences. A theoretical relationship of Dronkers (1998), which reflects the morphological equilibrium is checked on stability. The study has been carried out at WL | Delft Hydraulics and was funded by the Delft Cluster Project Coasts 03.01.03. I would like to thank my supervisors, prof. dr. Technology) for sharing their knowledge and support during this study. Furthermore, I am very greatful for the opportunity WL | Delft Hydraulics has offered me to complete my study at their institute and I would like to thank my temporary colleagues and fellow graduate students at WL | Delft Hydraulics for showing their interest and making my stay a very pleasant one. Finally, I would like to thank my family, girl friend Xandra and friends for their support during the years I spent in Delft. Summary Tidal inlets and their associated basins are a common feature of lowland coasts all around the world. These tidal systems play a crucial role in the natural sediment management of the coastal zone and thus influence the long-term coastal evolution. From a morphological point of view, tidal basins form highly dynamical systems in which the sediment transport is in a continuous interaction with the tidal motion. The present study considers the propagation of the tidal wave in the Dutch Wadden Sea and in particular the tidal asymmetry. The study contains a theoretical part focused on describing and modelling short tidal basins relative to the length of the tidal wave, followed by an application to the Amelander Zeegat and the Eijerlandse Gat of the Dutch Wadden Sea. Origin of tidal asymmetry are the non-linear interactions of tidal components. The non-linear interactions of tidal components and basin geometry generate overtides, which are important for residual sediment transport. Distinction can be made between asymmetry of the vertical tide (water levels) – and horizontal tide (flow velocities). The nature of the asymmetry refers to the characteristic situation of the tidal motion defined as flood dominance or ebb dominance. If the residual sediment transport is in the flood direction, it will be called flood-dominant and vice versa. The relative phase difference 2ϕ M2-ϕ M4 expresses the nature of the asymmetry of the vertical tide. The maximum flood-and ebb velocities and the durations of slack water define the … |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://repository.tudelft.nl/assets/uuid:59570ecd-06f8-498a-aba5-6a9c71b20c68/2002Duijts.pdf |
| Alternate Webpage(s) | https://repository.tudelft.nl/islandora/object/uuid:59570ecd-06f8-498a-aba5-6a9c71b20c68/datastream/OBJ/download |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
