Multi-scale analyses of inundation and wetland vegetation dynamics: Applications to measurements and modeling of carbon fluxes
John
Melack, University of California,, Santa Barbara, melack@lifesci.ucsb.edu
(Presenting)
Evlyn
Novo, INPE, evlyn@ltid.inpe.br
Laura
Hess, University of California,, Santa Barbara, lola@icess.ucsb.edu
Maycira
Costa, INPE and University of Victoria, maycira@office.geog.uvic.ca
Bruce
Forsberg, INPA, forsberg@horizon.com.br
Optical and microwave remote sensing analyses continue to refine the spatial and thematic accuracy of a basin-wide Amazon wetlands mask and to identify inundation/vegetation states in the entire lowland basin. Hydrologic sub-regions, similar with respect to inundation periodicity, are delineated using long-term stage and precipitation datasets, radar mosaics, and the SRTM DEM. High-resolution analysis focus on the Cabaliana, Mamiraua, and Curuai reaches of the main stem floodplain, the northern Bananal near the LBA tower and the upper Negro floodplain and adjacent interfluvial wetlands. Field measurements of phenological changes in aquatic macrophyte biomass provide a basis for calibrating radar images to estimate productivity of aquatic macrophytes. These remote sensing and field analyses are integrated into regional, collaborative estimation and modeling of carbon dioxide and methane emissions