@article{fdi:010078904,
  title = {{F}luvial and oceanographic influences on suspended sediment dispersal in the {M}agdalena {R}iver {E}stuary},
  author = {{T}orregroza-{E}spinosa, {A}. {C}. and {R}estrepo, {J}. {C}. and {C}orrea-{M}etrio, {A}. and {H}oyos, {N}. and {E}scobar, {J}. and {P}ierini, {J}. and {M}artinez, {J}ean-{M}ichel},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he {M}agdalena {R}iver is the main contributor of fresh water and sediment to the {C}aribbean {S}ea. {H}ydrological inputs from the {M}agdalena {R}iver are 10,287 and 4068 m(3) s(-1) at high and low flows, respectively. {S}ediment delivery from the {M}agdalena {R}iver is among the largest in the world, with 142 x 10(6) t yr(-1) of transported suspended matter. {W}e used {MODIS} images to develop a regional model and assess the spatial and temporal variability of suspended sediment concentration at the mouth of the {M}agdalena {R}iver, map the extent of the turbidity plume using its morphometric properties, and identify the main fluvial and oceanographic factors associated with plume variability. {W}e analyzed monthly average suspended sediment concentration data for the period 2003-2017. {MODIS} images were calibrated with in situ measurements of suspended sediment concentrations in surface waters of the study area. {A} finite mixing model was used to identify turbidity thresholds and define areas within the plume. {C}alculated suspended sediment concentrations indicate high turbidity in the {M}agdalena {R}iver mouth (178.6 +/- 78.7 mg {L}-1), values that are of the same order of magnitude as those measured in the {Y}angtze, {H}uang {H}e and {A}mazon {R}iver mouths. {C}alculated plume areas (diffuse, solid and mixing) and their shapes suggest that the {M}agdalena {R}iver plume has a limited area, related to conditions such as wind speed and direction, streamflow, and sediment transport. {C}alculated areas and shapes demonstrate the ability to generate a near-field area, which indicates the presence of a clear convergence front. {T}he data also emphasize the importance of sediment transport from the {M}agdalena {R}iver to the {C}aribbean {S}ea. {S}uch fluvial transport is important in the biogeochemistry of estuarine systems, especially in turbid estuaries, where there is marked variability in the distribution of sediment in surface waters.},
  keywords = {{R}emote sensing ; {S}ediment transport ; {T}urbid plume ; {MODIS} ; {M}agdalena {R}iver ; {COLOMBIE} ; {CARAIBE} {MER} ; {MAGDALENA} {COURS} {D}'{EAU}},
  booktitle = {},
  journal = {{J}ournal of {M}arine {S}ystems},
  volume = {204},
  numero = {},
  pages = {art. 103282 [14 p.]},
  ISSN = {0924-7963},
  year = {2020},
  DOI = {10.1016/j.jmarsys.2019.103282},
  URL = {https://www.documentation.ird.fr/hor/fdi:010078904},
}