@article{fdi:010054295,
  title = {{D}iagnosing water variations within the {A}mazon basin using satellite data},
  author = {{A}zarderakhsh, {M}. and {R}ossow, {W}. {B}. and {P}apa, {F}abrice and {N}orouzi, {H}. and {K}hanbilvardi, {R}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he components of the {A}mazon water budget and their spatiotemporal variability are diagnosed using monthly averaged remote sensing-based data products for the period {S}eptember 2002-{D}ecember 2006. {T}he large {A}mazon basin is divided into 14 smaller watersheds, and for each of these sub-basins, fresh water discharge is estimated from the water balance equation using satellite data products. {T}he purpose of this study is to learn how to apply satellite data with global coverage over the large tropical regions; therefore several combinations of remote sensing estimates including total water storage changes, precipitation and evapotranspiration. {T}he results are compared to gauge-based measurements and the best spatiotemporal agreement between estimated and observed runoff is within 1 mm/d for the combination of precipitation from the {GPCP} and the {M}ontana evapotranspiration product. {M}ean annual precipitation, evapotranspiration and runoff for the whole basin are estimated to be 6.3, 2.27 and 3.02 mm/d respectively but also show large spatial and temporal variations at sub-basin scale. {U}sing the most consistent data combination, the seasonal dynamics of the water budget within the {A}mazon system are examined. {A}greement between satellite based and in situ runoff is improved when lag-times between sub-basins are included ({RMSE} from 0.98 to 0.61 mm/d). {W}e estimate these lag times based on satellite-inferred inundation extents. {T}he results reveal not only variations of the basin forcing but also the complex response of the inter-connected sub-basin ({SB}) water budgets. {I}nter-annual and inter-{SB} variation of the water components are investigated and show large anomalies in northwestern and eastern downstream {SB}s; aggregate behavior of the whole {A}mazon is more complex than can be represented by a simple integral of the forcing over the whole river system.},
  keywords = {{AMAZONIE}},
  booktitle = {},
  journal = {{J}ournal of {G}eophysical {R}esearch-{A}tmospheres},
  volume = {116},
  numero = {},
  pages = {{D}24107},
  ISSN = {0148-0227},
  year = {2011},
  DOI = {10.1029/2011jd015997},
  URL = {https://www.documentation.ird.fr/hor/fdi:010054295},
}