@article{fdi:010087642,
  title = {{S}ettling dynamics of cohesive sediments in a highly turbid tidal river},
  author = {{D}efontaine, {S}. and {J}alon-{R}ojas, {I}. and {S}ottolichio, {A}. and {G}ratiot, {N}icolas and {A}nthony, {E}.},
  editor = {},
  language = {{ENG}},
  abstract = {{A}n optical settling column was used in the {G}aronne {T}idal {R}iver to estimate the settling velocity of suspended matter in surface waters over a period characterized by contrasting hydrological conditions. {A} time and space variability of settling velocity was observed during this study. {T}he settling velocities of surface suspended matter ranged from 0.018 to 0.268 mm. s(-1), and the median diameter of dispersed particles varied from 4.74 to 14.38 mu m. {T}he data revealed the physical processes influencing the sediment settling dynamics throughout different time scales in a highly turbid tidal river. {O}n tidal and fortnightly time scales, resuspension, deposition and advection mechanisms were the major drivers of the settling velocity variability, while it is likely that the estuarine turbidity maxima ({ETM}) was responsible for seasonal variations. {T}he findings of this work suggest that in tidal rivers, salinity is too low to promote flocculation, whereas {ETM} can play a key role in enhancing this process. {T}he stronger variability in settling velocity occurs on a tidal timescale, with median values up to four times higher at the end of the ebb tide than at high water. {T}hese variations cannot be correlated to salinity or sediment concentration. {O}n a seasonal timescale, flocculation appears to be strongly correlated with the presence of the {ETM} and associated fluid mud layer. {A} simple correlation based on tidal variations seems to be a better predictor than the relationships based on the sediment concentration.},
  keywords = {{S}ediment dynamics ; {S}ettling velocity ; {C}ohesive sediment ; {ETM} ; {SCAF} ; {T}idal river ; {FRANCE} ; {GARONNE}},
  booktitle = {},
  journal = {{M}arine {G}eology},
  volume = {457},
  numero = {},
  pages = {[13 ]},
  ISSN = {0025-3227},
  year = {2023},
  DOI = {10.1016/j.margeo.2023.106995},
  URL = {https://www.documentation.ird.fr/hor/fdi:010087642},
}