NDOUR, A.; BÂ, K.; ALMAR, A.; ALMEIDA, P.; SALL, Mamadou; DIEDHIOU, P.M.; FLOC'H, F.; DALY, C.; GRANDJEAN, P.; BOIVIN, J.-P.; CASTELLE, Bruno; MARIEU, Vincent; BIAUSQUE, Melanie; DETANDT, Guillaume; FOLLY, S. Tomety; BONOU, F.; CAPET, Xavier; GARLAN, T.; MARCHESIELLO, Patrick; BENSHILA, Rachid; DIAZ, H.; BERGSMA, E.; SADIO, M.; SAKHO, I.; SY, B.

doi:10.2112/SI95-114.1

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NDOUR, A.
Université Cheikh Anta DiopEcole Nationale d'Economie Appliquée

BÂ, K.
Université Cheikh Anta DiopEcole Nationale d'Economie Appliquée

ALMAR, A.
Université de Toulouse [UT]

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Article de revue

Ce document a été publié dans

Journal of Coastal Research. 2020-05-01, vol. 95, n° sp1, p. 583

Résumé en anglais

West Africa's low and densely populated coasts crystallize most of the environmental and societal problems and resulting vulnerability. It is becoming urgent to document this coast and the natural and anthropogenic forces to understand its evolution. Saint Louis is a historic (World Heritage) city located on the Langue de Barbarie, a 10 km sandspit at the mouth of the Senegal River. Because of its location, it is vulnerable (erosion, flooding) to river and ocean variability. This intermediate barred microtidal beach is located in a storm-free intertropical environment, but is exposed to distant oblique energetic waves from high latitudes, causing one of the highest coastal drifts in the world (∼800,000 m3/year). As part of the COASTVAR project, an intensive international field experiment was conducted in Saint Louis from 4 to 13 December 2016 to quantify the natural protective role played by the sandbar, coastal currents and transient exchanges with the inner shelf. Many instruments have been deployed to measure waves, currents, bathymetry and topography. This article provides an overview on the objectives of the experiment, the deployment and the first results of the modeling of coastal protection strategy< Réduire

URI

https://oskar-bordeaux.fr/handle/20.500.12278/189161

DOI

http://dx.doi.org/10.2112/SI95-114.1

Project ANR

Caractérisation de la variabilité littorale en Afrique de l'Ouest et au Vietnam par une étude multi-échelle et multi-méthode

Unités de recherche

EPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805