Publications des scientifiques de l'IRD

Ibaceta R., Almar Rafael, Lefebvre Jean-Pierre, Mensah-Senoo T., Layrea W.S. (2014). High frequency monitoring of swash hydro-morphodynamics on a reflective beach (Grand Popo, Benin) : a new method. In : Lynett P. (ed.). International Conference on Coastal Engineering (ICCE). Coastal Engineering Proceedings, (34), 8 p. International Conference on Coastal Engineering (ICCE), 34., Séoul (KOR), 2014/06/15-20. ISBN 978-0-9896611-2-6. ISSN 2156-1028.

Titre du document
High frequency monitoring of swash hydro-morphodynamics on a reflective beach (Grand Popo, Benin) : a new method
Année de publication
2014
Type de document
Article
Auteurs
Ibaceta R., Almar Rafael, Lefebvre Jean-Pierre, Mensah-Senoo T., Layrea W.S.
In
Lynett P. (ed.), International Conference on Coastal Engineering (ICCE)
Source
Coastal Engineering Proceedings, 2014, (34), 8 p. ISBN 978-0-9896611-2-6 ISSN 2156-1028
Colloque
International Conference on Coastal Engineering (ICCE), 34., Séoul (KOR), 2014/06/15-20
A new remote sensing video-based method for measuring rapid variations of the bed elevation and free-surface in the swash zone is tested on a steep reflective beach at Grand Popo. The key assumption is that the free-surface has a distinguishable optical signature with respect to the bed level. This new set up enables a high frequency description of the wave transformation, dissipation and reflection in the swash zone as well as the variations of the bed evolution at the wave-by-wave scale. At a more integrated scale, a good correlation is found between the offshore reflected energy measured by an ADCP, the incident offshore wave characteristics and the swash local morphology, suggesting the importance of the swash dynamics on the energy reflection mechanism.
Plan de classement
Dynamique des eaux [032DYNEAU] ; Océanographie [126TELAPP05]
Descripteurs
ZONE COTIERE ; LITTORAL ; PLAGE ; ZONE INTERTIDALE ; HYDRODYNAMIQUE ; ONDE MARINE ; METHODE D'ANALYSE ; TELEDETECTION ; VIDEO
Description Géographique
BENIN ; ATLANTIQUE
Localisation
Fonds IRD [F B010064309]
Identifiant IRD
fdi:010064309
Contact