Modeling sand wave characteristics on the Belgian Continental Shelf and in the Calais-Dover Strait
Cherlet, J.; Besio, G.; Blondeaux, P.; Van Lancker, V.; Verfaillie, E.; Vittori, G. (2007). Modeling sand wave characteristics on the Belgian Continental Shelf and in the Calais-Dover Strait. J. Geophys. Res. 112(C06002): 13 pp. dx.doi.org/10.1029/2007JC004089
In: Journal of Geophysical Research. American Geophysical Union: Richmond. ISSN 0148-0227; e-ISSN 2156-2202, more
The capability of the model of Besio et al. (2006) to predict the main geometrical characteristics (crest orientation, wavelength,…) of tidal sand waves is tested by comparing the theoretical predictions with field data. In particular the field observations carried out by Mouchet (1990) and Van Lancker et al. (2005) along the continental shelf of Belgium are used. Additional comparisons are carried out against the field measurements described by Le Bot (2001) and Le Bot and Trenteseaux (2004) which were carried out in an adjacent region. Attention is focused on the prediction of the wavelength of the bottom forms. Indeed, the capability of a linear stability analysis to predict the occurrence of sand waves has been already tested by Hulscher and van den Brink (2001) and more recently by van der Veen et al. (2006). The obtained results show that the theoretical predictions fairly agree with field observations even though some of the comparisons suggest that the accuracy of the predictions depends on the accurate evaluation of the local current and sediment characteristics.
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