Monitoring flooded area fraction in floodplains of PARANÁ basin using passive and active microwave systems

Over the past two decades, orbital passive microwave systems have proven to be sensitive to flood condition in large floodplains. This sensitivity is rooted in the well differentiated emission properties of calm water with respect to non-flooded land of any kind. In this paper, AMSR-E observations o...

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Publicado:	2010
Materias:	Active microwave Hydrology Passive microwave Wetlands Brightness temperatures Emission model Emission properties Envisat ASAR data Flood-plains Flooded areas Improved algorithm Long lasting Passive microwaves Subbasins Wetland area Geology Remote sensing Water Microwaves
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_97814244_v_n_p142_Salvia http://hdl.handle.net/20.500.12110/paper_97814244_v_n_p142_Salvia
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_97814244_v_n_p142_Salvia
record_format	dspace
spelling	paper:paper_97814244_v_n_p142_Salvia2025-07-30T19:13:08Z Monitoring flooded area fraction in floodplains of PARANÁ basin using passive and active microwave systems Active microwave Hydrology Passive microwave Wetlands Active microwave Brightness temperatures Emission model Emission properties Envisat ASAR data Flood-plains Flooded areas Improved algorithm Long lasting Passive microwaves Subbasins Wetland area Geology Hydrology Remote sensing Water Wetlands Microwaves Over the past two decades, orbital passive microwave systems have proven to be sensitive to flood condition in large floodplains. This sensitivity is rooted in the well differentiated emission properties of calm water with respect to non-flooded land of any kind. In this paper, AMSR-E observations of an herbaceous wetland area on the Paraná River sub-basin were analyzed during the 2009-10 timeframe when this region was affected by a strong and long lasting flooding. Evident effects on the difference between vertically and horizontally polarized brightness temperatures (ΔT) were observed at C-band. The fraction of vegetated flooded area was estimated by applying an improved algorithm which uses ENVISAT ASAR data at specific dates to calibrate AMSR-E temporal series. Also, using a theoretical emission model, the behavior of ΔT flooded is discussed. © 2010 IEEE. 2010 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_97814244_v_n_p142_Salvia http://hdl.handle.net/20.500.12110/paper_97814244_v_n_p142_Salvia
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Active microwave Hydrology Passive microwave Wetlands Active microwave Brightness temperatures Emission model Emission properties Envisat ASAR data Flood-plains Flooded areas Improved algorithm Long lasting Passive microwaves Subbasins Wetland area Geology Hydrology Remote sensing Water Wetlands Microwaves
spellingShingle	Active microwave Hydrology Passive microwave Wetlands Active microwave Brightness temperatures Emission model Emission properties Envisat ASAR data Flood-plains Flooded areas Improved algorithm Long lasting Passive microwaves Subbasins Wetland area Geology Hydrology Remote sensing Water Wetlands Microwaves Monitoring flooded area fraction in floodplains of PARANÁ basin using passive and active microwave systems
topic_facet	Active microwave Hydrology Passive microwave Wetlands Active microwave Brightness temperatures Emission model Emission properties Envisat ASAR data Flood-plains Flooded areas Improved algorithm Long lasting Passive microwaves Subbasins Wetland area Geology Hydrology Remote sensing Water Wetlands Microwaves
description	Over the past two decades, orbital passive microwave systems have proven to be sensitive to flood condition in large floodplains. This sensitivity is rooted in the well differentiated emission properties of calm water with respect to non-flooded land of any kind. In this paper, AMSR-E observations of an herbaceous wetland area on the Paraná River sub-basin were analyzed during the 2009-10 timeframe when this region was affected by a strong and long lasting flooding. Evident effects on the difference between vertically and horizontally polarized brightness temperatures (ΔT) were observed at C-band. The fraction of vegetated flooded area was estimated by applying an improved algorithm which uses ENVISAT ASAR data at specific dates to calibrate AMSR-E temporal series. Also, using a theoretical emission model, the behavior of ΔT flooded is discussed. © 2010 IEEE.
title	Monitoring flooded area fraction in floodplains of PARANÁ basin using passive and active microwave systems
title_short	Monitoring flooded area fraction in floodplains of PARANÁ basin using passive and active microwave systems
title_full	Monitoring flooded area fraction in floodplains of PARANÁ basin using passive and active microwave systems
title_fullStr	Monitoring flooded area fraction in floodplains of PARANÁ basin using passive and active microwave systems
title_full_unstemmed	Monitoring flooded area fraction in floodplains of PARANÁ basin using passive and active microwave systems
title_sort	monitoring flooded area fraction in floodplains of paraná basin using passive and active microwave systems
publishDate	2010
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_97814244_v_n_p142_Salvia http://hdl.handle.net/20.500.12110/paper_97814244_v_n_p142_Salvia
_version_	1840320933729927168

Monitoring flooded area fraction in floodplains of PARANÁ basin using passive and active microwave systems

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