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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Sediment management and morphodynamics : Tidal dynamics in the sand motor lagoon
Tidal dynamics in the sand motor lagoon
Author : S. DE VRIES, M. RADERMACHER, M.A. DE SCHIPPER & M.J.F. STIVE
ABSTRACT
The Sand Motor is a mega-nourishment characterized by a very large sand volume of around 20 million m3 placed along
the Dutch coast. The Sand Motor is a pilot project to evaluate the performance of an alternative nourishment strategy
with respect to different functions of the coastal system. Within the scope of the coastal functions, the hook-shaped
design of the initial morphology of the Sand Motor involves a sheltered (man-made) lagoon. The morphology of the
Sand Motor and particularly the area around the lagoon entrance has changed over time since the construction in 2011.
As a result of the changing inlet and lagoon morphology, the tidal conditions inside the basin have changed. We have
set up a detailed numerical model to simulate the hydrodynamic conditions inside the Sand Motorís tidal lagoon as a
function of the water level at sea and the measured local morphology of the Sand Motor. It is found that the tidal
response inside the lagoon changes significantly as a function of the changing morphology. The analysis reveals a
prediction of the temporal development of the tidal range and mean water level inside the lagoon, which can be used to
predict the closure of the Sand Motor lagoon.
File Size : 1,331,310 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Sediment management and morphodynamics
Date Published : 20/08/2015
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