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Efficacité du rechargement de la plage de Pilote Bar (Saint-Louis) après une décennie d'érosion

Abstract : This work presents the results of a morpho-dynamic and sedimentological monitoring after beach nourishment and the consecutive formation of a lagoon. Topographic measurements have allowed determining the origin of the sediments present in the lagoon. The movement of the sediments is from the high beach to the lagoon. The analysis of current velocities shows a normal functioning of a fluvio-maritime system with high velocities during the flood period and low velocities during the ebb. Particle size analysis shows that fine-grained sediments are deposited in the underwater part of the beach profile. This first experiment in Senegal had positive results. The recharging of the Pilote Bar beach has favoured the formation of a lagoon. Sedimentation and increase in the height of the slopes of the neighboring beaches were also observed. The currents measured by the ADCP RIVER 1200 kW, indicate a normal operation characteristic of a fluviomaritime zone.
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Submitted on : Tuesday, May 11, 2021 - 4:04:14 PM
Last modification on : Friday, April 1, 2022 - 3:44:00 AM
Long-term archiving on: : Thursday, August 12, 2021 - 7:10:45 PM


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Omar Balde, Issa Sakho, Mouhamadoul Bachir Diouf, Mamadou Bop, Djibril Tine, et al.. Efficacité du rechargement de la plage de Pilote Bar (Saint-Louis) après une décennie d'érosion. European Scientific Journal, European Scientific Institute, 2021, 17 (10), pp.207-232. ⟨10.19044/esj.2021.v17n10p207⟩. ⟨hal-03224344⟩



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