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Title: | Modeling large-scale inundation of Amazonian seasonally flooded wetlands |
Authors: | Wilson, Matthew D. Bates, Paul Alsdorf, Douglas E. Forsberg, Bruce Rider Horritt, Matthew S. Melack, John M. Frappart, Frédéric Famiglietti, James S. |
Keywords: | Computer Simulation Floods Hydrodynamics Hydrology Topography Wetlands Floodplain Inundation Satellite Altimetry Geophysics Flooding Floodplain Hydrodynamics Modeling Satellite Data Wetland Amazonia South America |
Issue Date: | 2007 |
metadata.dc.publisher.journal: | Geophysical Research Letters |
metadata.dc.relation.ispartof: | Volume 34, Número 15 |
Abstract: | 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 × 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. Copyright 2007 by the American Geophysical Union. |
metadata.dc.identifier.doi: | 10.1029/2007GL030156 |
Appears in Collections: | Artigos |
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