@article{fdi:010090324,
  title = {{E}xpressive fluxes over {A}mazon floodplain revealed by 2{D} hydrodynamic modelling},
  author = {{F}assoni-{A}ndrade, {A}. {C}. and de {P}aiva, {R}. {C}. {D}. and {W}ongchuig, {S}. and {B}arbosa, {C}. and {D}urand, {F}abien and {S}ilva, {T}. {S}. {F}.},
  editor = {},
  language = {{ENG}},
  abstract = {{W}ater fluxes in the {A}mazon {R}iver floodplain affect hydrodynamic and ecological processes from local to global scales, but they remain poorly understood due to difflcult accessibility and limited data. {W}e characterized the hydrodynamics of eight floodplain units of the central {A}mazon {R}iver (40000 km2) using the 2{D} hydraulic model {HEC}-{RAS}. {H}igh resolution modelling (-400 m) improved the representation of river and floodplain discharge, water surface elevation (77 cm accuracy) and flood extent (-80% -high water period,-52% -low water period) compared to past modelling studies. {O}ur results show that floodplain flows during floods are very intense with upstream inflow and downstream outflow of the floodplain units. {T}hese gross flows are much larger than the net flows, with values of up to 20% of the {A}mazon {R}iver discharge and residence time around 6 days during floods (several months during low water period). {W}ater extent did not show strong interannual variability during floods as the volume stored in the floodplain did, possibly due to topographic constraints. {S}igniflcant hysteresis in flood extent and volume, and active and storage zones on the floodplain highlight the complexity of floodplain hydrodynamics. {E}xtreme floods strongly impacted the onset and duration of the flood by up to one month and, consequently on duration of high water renewal period with the river. {O}ur characterization is important to assess the effects of extreme floods on riverine communities, understand nutrient and sediment variations in the floodplain, and characterize the export of water, sediment, and carbon flux to the ocean from the world's largest hydrological system.},
  keywords = {{BRESIL} ; {AMAZONE} {BASSIN}},
  booktitle = {},
  journal = {{J}ournal of {H}ydrology},
  volume = {625},
  numero = {{B}},
  pages = {130122 [16 ]},
  ISSN = {0022-1694},
  year = {2023},
  DOI = {10.1016/j.jhydrol.2023.130122},
  URL = {https://www.documentation.ird.fr/hor/fdi:010090324},
}