Ndour A. auteur aut IRD Ba K. auteur aut IRD Almar A. auteur aut IRD Almeida P. auteur aut IRD Sali M. auteur aut IRD Diedhion P. M. auteur aut IRD Floc'h E. auteur aut IRD Daly Christopher auteur aut IRD Grandjean P. auteur aut IRD Boivin J. P. auteur aut IRD Castelle B. auteur aut IRD Marieu V. auteur aut IRD Biausque M. auteur aut IRD Detandt G. auteur aut IRD Folly S. T. auteur aut IRD Bonou F. auteur aut IRD Capet Xavier auteur aut IRD Garlan T. auteur aut IRD Marchesiello Patrick auteur aut IRD Benshila R. auteur aut IRD Diaz H. auteur aut IRD Bergsma E. auteur aut IRD Sadio M. auteur aut IRD Sakho I. auteur aut IRD Sy B. auteur aut IRD text journalArticle eng text/pdf born digital access 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 (similar to 800,000 m(3)/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. specialized Waves erosion flooding climate change beaches West Africa coastal vulnerability SENEGAL SAINT LOUIS 064 032 021 No spécial 95 583-587 2020 0749-0208 https://www.documentation.ird.fr/hor/fdi:010078162 10.2112/si95-114.1 0749-0208 [F B010078162] https://www.documentation.ird.fr/hor/fdi:010078162 https://www.documentation.ird.fr/intranet/publi/2020/06/010078162.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2020-07-02 2025-02-24 fdi:010078162 fre