@article{fdi:010067648,
  title = {{N}umerical simulations of suspended sediment dynamics due to seasonal forcing in the {M}ekong coastal area},
  author = {{V}u {D}uy {V}inh and {O}uillon, {S}ylvain and {N}guyen {V}an {T}hao and {N}guyen {N}goc {T}ien},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he {M}ek ong {R}iver is ranked as the 8th in terms of water discharge and as the 10th in terms of sediment load in the world. {D}uring the last 4500 years, its delta prograded more than 250 km to the south due to a tremendous amount of sediments deposited, and turned from a "tide-dominated" delta into a "wave-and-tide dominated" delta. {T}his study aims at completing our knowledge on the fate of sediments that may be stored in estuarine or coastal systems, or dispersed over the continental shelf and slope. {S}ediment transport in the {M}ekong {R}iver {D}elta ({MRD}) coastal area was studied by numerical simulations using the {D}elft3{D} model. {T}he model configuration was calibrated and validated from data collected in situ during 4 periods from 2012 to 2014. {T}hen, 50 scenarios corresponding to different wave conditions (derived from the wave climate) and river discharge values typical of low flow and flood seasons enabled us to quantify the dispersal patterns of fluvial sediments close to the mouths and along the coast. {S}ediments mostly settled in the estuary and close to the mouths under calm conditions, and suspended sediment with higher concentrations extend further offshore with higher waves. {W}aves from the {S}outheast enhanced the concentration all along the {MRD} coastal zone. {W}aves from the {S}outh and {S}outhwest induced coastal erosion, higher suspended sediment concentrations in front of the southern delta, and a net transport towards the {N}ortheast of the delta. {B}ecause of episodes of {S}outhern and {S}outhwestern waves during the low flow season, the net alongshore suspended sediment transport is oriented {N}ortheastward and decreases from the {S}outhwestern part of the coastal zone (similar to 960 x 10(3) t yr(-1)) to the {N}ortheastern part (similar to 650 x 10(3) t yr(-1)).},
  keywords = {suspended sediment ; sediment transport ; coastal hydraulics ; {M}ekong ; river plume ; monsoon ; mathematical model ; {VIET} {NAM} ; {MEKONG} {DELTA}},
  booktitle = {{S}ediment transport in coastal waters},
  journal = {{W}ater},
  volume = {8},
  numero = {no sp{\'e}cial},
  pages = {art. 255 [22 ]},
  ISSN = {2073-4441},
  year = {2016},
  URL = {https://www.documentation.ird.fr/hor/fdi:010067648},
}