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Título: Modeling large-scale inundation of the Amzonian sesonally flooded wetlands
Autor(es): Matthew Wilson
Paul Bates
Doug Alsdorf
Matthew Horritt
John Melack
F. Frappart
J S Famglietti
Bruce Rider Forsberg
Assunto: Amazonas
áreas alagáveis
ISSN: 0094-8276
Revista: Geophysical Research Letters
Volume: 34
Resumo: This paper presents the first application and validation of a 2D hydrodynamic model of the Amazon at a large spatial scale. The simulation results suggest that a significantly higher proportion of total flow is routed through the floodplain than previously thought. We use the hydrodynamic model LISFLOOD-FP with topographic data from the Shuttle Radar Topography Mission to predict floodplain inundation for a 240 x 125 km section of the central Amazon floodplain in Brazil and compare our results to satellite- derived estimates of inundation extent, existing gauged data and satellite altimetry. We find that model accuracy is good at high water ( 72% spatial fit; 0.99 m root mean square error in water stage heights), while accuracy drops at low water ( 23%; 3.17 m) due to incomplete drainage of the floodplain resulting from errors in topographic data and omission of floodplain hydrologic processes from this initial model.
ISSN: 0094-8276
Aparece nas coleções:Coordenação de Dinâmica Ambiental (CDAM)

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