Monitoring flood condition in marshes using em models and envisat ASAR observations

This paper discusses the contribution of multipolarization radar data in monitoring flooding events in wetland areas of the Delta of the Paraná River, in Argentina. The discussion is based on the comparison between radiative transfer model simulations and ENVISAT Advanced Synthetic Aperture Radar ob...

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Detalles Bibliográficos
Autores principales: Grings, F.M., Ferrazzoli, P., Jacobo-Berlles, J.C., Karszenbaum, H., Tiffenberg, J., Pratolongo, P., Kandus, P.
Formato: JOUR
Materias:
Flood monitoring
Modeling
Radar
Wetlands
Nonflooded conditions
Radiative transfer models
Biomass
Computer simulation
Data reduction
Heat transfer
Flood control
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_01962892_v44_n4_p936_Grings
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
Descripción
Sumario:This paper discusses the contribution of multipolarization radar data in monitoring flooding events in wetland areas of the Delta of the Paraná River, in Argentina. The discussion is based on the comparison between radiative transfer model simulations and ENVISAT Advanced Synthetic Aperture Radar observations of two types of marshes: junco and cortadera. When these marshes are flooded, the radar response changes significantly. The differences in radar response between the flooded and nonflooded condition can be related to changes in the amount of emerged biomass. Based on this, we propose a vegetation-dependent flooding prediction scheme for two marsh structures: nearly vertical cylinders (junco-like) and randomly oriented discs (cortadera-like). © 2006 IEEE.

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