Connecting subtidal and subaerial sand transport pathways in the Texel inlet system

Connecting subtidal and subaerial sand transport pathways in the Texel inlet system

Wijnberg, Kathelijne (University of Twente)
van der Spek, Ad (Deltares)
Galiforni-Silva, Filipe (University of Twente)
Elias, Edwin P.L. (Deltares-USA)
van der Wegen, Mick (Deltares)
Slinger, J (TU Delft Policy Analysis; TU Delft Coastal Engineering)

Aagaard, Troels (editor)
Deigaard, Rolf (editor)
Fuhrman, David (editor)

2017

Potential transport pathways between the subtidal and subaerial part of tidal inlet systems are explored by means of a case study of Texel Inlet, The Netherlands. Based on a morphologic analysis of multi-annual, high-resolution bathymetric and topographic data sets we hypothesize that two mechanisms connect the subtidal and subaerial parts of the system. The first mechanism relates to deposition on the tip of the island occurring to a large extent below spring high tide level, providing a fresh sediment source available for aeolian transport during parts of the tidal cycle. The second mechanism relates to sand deposition on the wide sandflat above spring high tide level occurring during storm surge flooding. These deposits are then available for aeolian transport during regular water levels. Due to the dominant wind direction at Texel Island, this leads to extensive dune formation on the downwind end of the sandflat.

morphodynamics
tidal inlet
coastal dunes
sandflat
sediment transport pathways

http://resolver.tudelft.nl/uuid:a37d2c7d-aed8-4698-8478-310e20f6e724

Proceedings of Coastal Dynamics 2017

Coastal Dynamics 2017, 2017-06-12 → 2017-06-16, Kulturværftet, Helsingor, Denmark

Institutional Repository

conference paper

© 2017 Kathelijne Wijnberg, Ad van der Spek, Filipe Galiforni-Silva, Edwin P.L. Elias, Mick van der Wegen, J Slinger