@article{fdi:010055776,
  title = {{D}ischarge simulation in the sub-basins of the {A}mazon using {ORCHIDEE} forced by new datasets},
  author = {{G}uimberteau, {M}. and {D}rapeau, {G}. and {R}onchail, {J}. and {S}ultan, {B}enjamin and {P}olcher, {J}. and {M}artinez, {J}. {M}. and {P}rigent, {C}. and {G}uyot, {J}ean-{L}oup and {C}ochonneau, {G}{\'e}rard and {E}spinoza, {J}. {C}. and {F}ilizola, {N}. and {F}raizy, {P}ascal and {L}avado, {W}. and {D}e {O}liveira, {E}. and {P}ombosa, {R}. and {N}oriega, {L}. and {V}auchel, {P}hilippe},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he aim of this study is to evaluate the ability of the {ORCHIDEE} land surface model to simulate streamflows over each sub-basin of the {A}mazon {R}iver basin. {F}or this purpose, simulations are performed with a routing module including the influence of floodplains and swamps on river discharge and validated against on-site hydrological measurements collected within the {HYBAM} observatory over the 1980-2000 period. {W}hen forced by the {NCC} global meteorological dataset, the initial version of {ORCHIDEE} shows discrepancies with {ORE} {HYBAM} measurements with underestimation by 15% of the annual mean streamflow at {A}"bidos hydrological station. {C}onsequently, several improvements are incrementally added to the initial simulation in order to reduce those discrepancies. {F}irst, values of {NCC} precipitation are substituted by {ORE} {HYBAM} daily in-situ rainfall observations from the meteorological services of {A}mazonian countries, interpolated over the basin. {I}t highly improves the simulated streamflow over the northern and western parts of the basin, whereas streamflow over southern regions becomes overestimated, probably due to the extension of rainy spots that may be exaggerated by our interpolation method, or to an underestimation of simulated evapotranspiration when compared to flux tower measurements. {S}econd, the initial map of maximal fractions of floodplains and swamps which largely underestimates floodplains areas over the main stem of the {A}mazon {R}iver and over the region of {L}lanos de {M}oxos in {B}olivia, is substituted by a new one with a better agreement with different estimates over the basin. {S}imulated monthly water height is consequently better represented in {ORCHIDEE} when compared to {T}opex/{P}oseidon measurements over the main stem of the {A}mazon. {F}inally, a calibration of the time constant of the floodplain reservoir is performed to adjust the mean simulated seasonal peak flow at {A}"bidos in agreement with the observations.},
  keywords = {{BOLIVIE} ; {AMAZONIE} ; {AMAZONE} {BASSIN}},
  booktitle = {},
  journal = {{H}ydrology and {E}arth {S}ystem {S}ciences},
  volume = {16},
  numero = {3},
  pages = {911--935},
  ISSN = {1027-5606},
  year = {2012},
  DOI = {10.5194/hess-16-911-2012},
  URL = {https://www.documentation.ird.fr/hor/fdi:010055776},
}