Morphological evolution and spatio-temporal variability of the longshore drift system in the bay of Tangier (Morocco)
✍ Scribed by Rachid E.L. Bouzidi; Mustapha Labraimi; Bendahhou Zourarah
- Publisher
- Elsevier Science
- Year
- 2004
- Tongue
- English
- Weight
- 497 KB
- Volume
- 39
- Category
- Article
- ISSN
- 1464-343X
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✦ Synopsis
In order to identify seasonal variations in the coastal morphology in the Bay of Tangier (North West of Morocco on the southern coast of the Strait of Gibraltar), 31 beach profiles were collected during the fall, winter, spring and summer covering the period 1996-1997. Although the results did not indicate a seasonal evolution of the beach profile, they did suggest a high spatio-temporal variability in the seasonal morphological evolution.
A model of the longshore drift was developed from changes in the volume and the direction of longshore sediment transport, under different wave conditions. It was realized using 12 wave refraction patterns. The model revealed the existence of source cells, receiving cells and stable cells; changes in the behaviour of these cells were related to modifications in wave parameters, which explain the spatio-temporal variability of the beach morphological evolution.
The relationship between beach morphology and hydrodynamic conditions was definitely the result of a combination of wave conditions.