@article{fdi:010086974,
  title = {{S}easonal to interannual variability of the tide in the {A}mazon estuary},
  author = {{F}assoni-{A}ndrade, {A}. {C}. and {D}urand, {F}abien and {A}zevedo, {A}. and {B}ertin, {X}. and {S}antos, {L}. {G}. and {K}han, {J}. {U}. and {T}estut, {L}. and {M}oreira, {D}. {M}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he {A}mazon {R}iver exports the largest volume of fresh water to the ocean worldwide. {A}lthough previous studies have revealed the spatiotemporal tidal variability of the estuary, its hydrodynamics is still poorly understood. {H}ere we evaluate the seasonal and interannual variability of the tide from ' {O}bidos (800 km upstream) to the {A}tlantic {O}cean and show how it is affected by the hydrological regime of the {A}mazon {R}iver. {A} high-resolution 2{D} hydrodynamic model was applied in this region at the scale of the whole estuary. {T}he tide model is validated using data from 14 water level stations and shows an average complex error of 16 cm in the low flow season and 23 cm in the high flow season. {T}he semi-diurnal tide is highly variable at seasonal timescales, and the seasonality of the discharge affects the tidal amplitude, the geographic extent of tidal influence, the tidal wave celerity, and the tidal flow reversal. {N}otably, the tidal influence on water level remains detectable up to ' {O}bidos during the low flow season while during the high flow season it extends from the ocean to only 300 km downstream of ' {O}bidos. {O}n the other hand, the upstream limit of the domain where the tide induces a periodic flow reversal is different from the limit of tidal influence on the water level. {T}he upstream limit of this flow reversal is shifted by 170 km (from 500 km to 670 km downstream of ' {O}bidos) along the year due to the seasonality of the discharge. {A}t interannual scale, anomalous hydrological discharges affect the tidal amplitude by up to 30% in the central reach of the estuary. {O}ur findings open unprecedented opportunities to understand biogeochemical and geomorphological processes, help navigation, and assess flooding hazards.},
  keywords = {{BRESIL} ; {AMAZONIE} ; {ATLANTIQUE} ; {ZONE} {TROPICALE} ; {AMAZONE} {ESTUAIRE}},
  booktitle = {},
  journal = {{C}ontinental {S}helf {R}esearch},
  volume = {255},
  numero = {},
  pages = {104945 [15 ]},
  ISSN = {0278-4343},
  year = {2023},
  DOI = {10.1016/j.csr.2023.104945},
  URL = {https://www.documentation.ird.fr/hor/fdi:010086974},
}