@article{fdi:010075140,
  title = {{O}rigin of sediment fluxes in inner shelf zone via acoustic measurements, {G}rand-{P}opo, {B}enin},
  author = {{F}loc'h, {F}. and {A}ziayibor, {K}. and {A}lmar, {R}afa{\¨e}l and {P}enhoat du, {Y}ves and {L}efebvre, {J}ean-{P}ierre and {D}orel, {M}. and {D}elacourt, {C}.},
  editor = {},
  language = {{ENG}},
  abstract = {{I}n the {G}ulf of {G}uinea, energetic swells generated in {S}outh {A}tlantic are responsible for one of the most important littoral drifts in the world, directed {E}astward. {T}he construction of harbour dams along this littoral disturbs the natural balance of the system and causes extreme erosion up to 10 m/year. {W}ithin the framework of this study, a serie of intensive measurements was conducted at {G}rand {P}opo from {M}arch, the 10th to the 19th, 2014. {A} large number of hydrodynamic, sedimentary and morphological parameters were measured. {T}he backscatter signal from an {A}coustic {D}oppler {C}urrent {P}rofiler ({ADCP}) colocalised with a turbidity meter is inverted emprirically. {T}hree main events of suspension over the whole water column are observed, during intense wind (>5m/s) lasting more than 8 hours. {A}ctually, the water surface entrains after about 3-4 hours of intense wind, then the momentum is advected to the bottom in 2 or 3 hours depending on the intensity of the wind. {T}he turbidity is then directly linked to the bottom stress derived from the mean current. {T}he longshore flux is thus due to wind and always {E}astward. {T}he cross-shore flux is alternatively directed onshore or offshore. {D}uring spring tide, the offshore flux is in phase with the beginning of the tide flow. {T}he exact origin of the current was not identified. {L}ongshore flux were found to be 20 times higher than cross-shore flux.},
  keywords = {{S}ediment flux ; backscatter ; {G}rand-{P}opo beach ; inner-shelf ; {BENIN} ; {GRAND} {POPO}},
  booktitle = {},
  journal = {{J}ournal of {C}oastal {R}esearch},
  numero = {81 {N}o sp{\'e}cial},
  pages = {107--113},
  ISSN = {0749-0208},
  year = {2018},
  DOI = {10.2112/si81-014.1},
  URL = {https://www.documentation.ird.fr/hor/fdi:010075140},
}