@article{fdi:010069983,
  title = {{A}mazonian floodplain water balance based on modelling and analyses of hydrologic and electrical conductivity data},
  author = {{B}onnet, {M}arie-{P}aule and {P}inel, {S}. and {G}arnier, {J}. and {B}ois, {J}. and {B}oaventura, {G}. {R}. and {S}eyler, {P}atrick and {M}arques, {D}. {M}.},
  editor = {},
  language = {{ENG}},
  abstract = {{I}n the {A}mazon basin, floodplains form a complex mosaic of freshwater systems with differing morphologies, resulting in varied inundation patterns and heterogeneous chemical and ecological characteristics. {I}n this study, we focused on the {J}anauaca floodplain, a medium-sized system (786km(2), including the local watershed) located along the {S}olimoes {R}iver. {B}ased on in situ and satellite observations acquired from {N}ovember 2006 to {N}ovember 2011, we computed water fluxes between the mainstream and the floodplain and examined the temporal dynamics of floodplain storage from river flooding, rainfall, runoff, and exchanges with groundwater through bank seepage for the 5years from 2006 to 2011. {T}he mainstream was the main input of water to the flooded area, accounting on average for 93% of total water inputs by the end of the water year. {D}irect precipitation and runoff from uplands contributed less than or equal to 5% and 10%, respectively. {T}he seepage contribution was less than 1%. {M}odel uncertainties, evaluated using {M}onte {C}arlo analysis of the input data and model parameters, showed that all water fluxes were relatively well constrained except for outflow through seepage, which had a standard deviation across simulations greater than 60%. {T}he water balance computation was verified using electrical conductivity as an assumed non-reactive tracer. {E}xcept during periods of very low water, the simulated and measured conductivities agreed well. {M}oreover, conductivity data analysis confirmed that the {J}anauaca system can be considered homogeneous in terms of electrical conductivity for filling percentages equal to or greater than 40% (i.e., when the water level is above 19.5m, generally from {A}pril to {A}ugust) but presented large heterogeneities during the rest of the hydrological cycle.},
  keywords = {{A}mazonian floodplain ; hydrological modelling ; water balance ; {AMAZONIE} ; {AMAZONE} {BASSIN} ; {SOLIMOES} {COURS} {D}'{EAU} ; {JANAUACA}},
  booktitle = {},
  journal = {{H}ydrological {P}rocesses},
  volume = {31},
  numero = {9},
  pages = {1702--1718},
  ISSN = {0885-6087},
  year = {2017},
  DOI = {10.1002/hyp.11138},
  URL = {https://www.documentation.ird.fr/hor/fdi:010069983},
}