Dernière mise à jour le : 20 août 2016

Sediment transport induced by tidal bores. An estimation from suspended matter measurements in the Sée River (Mont-Saint-Michel Bay, northwestern France)

DESCRIPTION

Tidal bores are believed to induce significant sediment transport in macrotidal estuaries. However, due to high turbulence and very large suspended sediment concentration (SSC), the measurement of sediment transport induced by a tidal bore is actually a technical challenge. Consequently, very few quantitative data have been published so far. This paper presents SSC measurements performed in the Sée River estuary (Mont-Saint-Michel Bay, northwestern France) during the tidal bore passage with direct and indirect (optical) methods. Both methods are calibrated in laboratory in order to verify the consistency of measurements, to calculate the uncertainties, and to correct the raw data. The SSC measurements coupled with ADCP velocity data are used to calculate the instantaneous sediment transport (qs) associated with the tidal bore passage (up to 40 kg/m2/s).

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keyboard_arrow_right Titre : Sediment transport induced by tidal bores. An estimation from suspended matter measurements in the Sée River (Mont-Saint-Michel Bay, northwestern France)
keyboard_arrow_right Type de documentation : Articles
keyboard_arrow_right Auteur(s) personne(s) : Crave Alain, Weill Pierre, Haquin Sylvain, Perez Laurent, Tessier Bernadette, Mouazé Dominique, Furgerot Lucille
keyboard_arrow_right Date de publication : 20 août 2016
keyboard_arrow_right Nombre de pages : pp432-441
keyboard_arrow_right Editeur(s) : Académie des sciences
keyboard_arrow_right Tags thématiques : baie, débit, sédimentation, sédiment, sédimentologie, matières en suspension
keyboard_arrow_right Mots-clés libres : ASM rod/Direct sampling/Flow velocity/Laboratory calibration/Mont-Saint-Michel Bay/Sediment flux/Suspended sediment concentration (SSC)/Tidal bore/vitesse d'écoulement
keyboard_arrow_right Langue : Anglais
keyboard_arrow_right N° d'édition (ISBN,DOI...) : 10.1016/j.crte.2015.09.004
keyboard_arrow_right Collection : COMPTES RENDUS DE L'ACADEMIE DES SCIENCES (II). SCIENCES DE LA TERRE ET DES PLANETES
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