@article{fdi:010055966,
  title = {{T}he integration of field measurements and satellite observations to determine river solid loads in poorly monitored basins},
  author = {{V}illar, {R}. {E}. and {M}artinez, {J}ean-{M}ichel and {G}uyot, {J}ean-{L}oup and {F}raizy, {P}ascal and {A}rmijos, {E}. and {C}rave, {A}lain and {B}azan, {H}. and {V}auchel, {P}hilippe and {L}avado, {W}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he use of satellite imagery to assess river sediment discharge is discussed in the context of poorly monitored basins. {F}or more than three decades, the {P}eruvian hydrological service {SENAMHI} has been maintaining several gauging stations in the lower part of the {A}mazon {R}iver catchment. {T}his network has been recently supplemented by the {H}ydro-geodynamics of the {A}mazon {B}asin ({HYBAM}) program, which has a water quality monitoring network distributed over five locations and allows the assessment of river discharge and surface suspended sediment ({SSS}) concentration. {I}n this paper, the three stations that are located near the confluence of the {M}aranon and {U}cayali {R}ivers, which form the {A}mazon {R}iver, are reviewed in detail. {T}wo of the stations provide a complete time series of 10-day {SSS} samples over the studied period. {T}he third station, along the {U}cayali {R}iver, failed to provide valid estimates of sediment concentration at the river surface. {T}he objective is to use satellite data as a substitute for the missing records in order to assess the {U}cayali {R}iver sediment discharge, which has never been directly assessed before. {A}n additional goal was to extend the river sediment discharge records for the other two stations. {W}ater reflectance, assessed from the time series of {MODIS} satellite images, is calibrated using field-sampling campaigns to provide satellite-based {SSS} estimates. {V}alidation is achieved using an independent dataset consisting of the 10-day {SSS} samples derived from the {HYBAM} network. {O}ver a 4-year period between 2004 and 2008, there is greater than 10% agreement between satellite-derived data and network data for the two stations that provided complete field records. {B}ased on satellite-derived {SSS} estimates assessed from 2000 to 2009, the river sediment balance is shown to be consistent between upstream and downstream stations. {T}he use of satellite data and their integration with field data in the context of poorly monitored basins is discussed, and different cases are proposed.},
  keywords = {{H}ydrology ; {R}emote sensing ; {S}ediment discharge ; {A}mazon ; {MODIS}},
  booktitle = {},
  journal = {{J}ournal of {H}ydrology},
  volume = {444},
  numero = {},
  pages = {221--228},
  ISSN = {0022-1694},
  year = {2012},
  DOI = {10.1016/j.jhydrol.2012.04.024},
  URL = {https://www.documentation.ird.fr/hor/fdi:010055966},
}