SMOS REFLEX 2003: L-Band Emissivity Characterization of Vineyards

The goal of the Soil Moisture and Ocean Salinity mission over land is to infer surface soil moisture from multiangular L-band radiometric measurements. As the canopy affects the microwave emission of land, it is necessary to characterize different vegetation layers. This paper presents the Reference...

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Autores: Vall-Llossera Ferran, Mercedes Magdalena|||0000-0003-1357-7098, Camps Carmona, Adriano José|||0000-0002-9514-4992, Corbella Sanahuja, Ignasi|||0000-0001-5598-7955, Torres Torres, Francisco|||0000-0003-1160-6350, Duffo Ubeda, Núria|||0000-0002-9398-3995, Monerris Belda, Alessandra, Sabia, Roberto, Selva Valero, Daniel, Antolín, Carmen, López Baeza, Ernesto, Ferrer, Joan Ferran, Saleh, Kauzar
Formato: artículo
Fecha de publicación:2005
País:España
Recursos:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/1042
Acesso em linha:https://hdl.handle.net/2117/1042
Access Level:acceso abierto
Palavra-chave:Microwave measurements
Radiometry
Vegetation mapping
hydrological techniques
microwave measurement
radiometry
soil
vegetation mapping
Microones -- Mesurament
Radiometria
Vegetació -- Cartografia
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Circuits de microones, radiofreqüència i ones mil·limètriques
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spelling SMOS REFLEX 2003: L-Band Emissivity Characterization of VineyardsVall-Llossera Ferran, Mercedes Magdalena|||0000-0003-1357-7098Camps Carmona, Adriano José|||0000-0002-9514-4992Corbella Sanahuja, Ignasi|||0000-0001-5598-7955Torres Torres, Francisco|||0000-0003-1160-6350Duffo Ubeda, Núria|||0000-0002-9398-3995Monerris Belda, AlessandraSabia, RobertoSelva Valero, DanielAntolín, CarmenLópez Baeza, ErnestoFerrer, Joan FerranSaleh, KauzarMicrowave measurementsRadiometryVegetation mappinghydrological techniquesmicrowave measurementradiometrysoilvegetation mappingMicroones -- MesuramentRadiometriaVegetació -- CartografiaÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Circuits de microones, radiofreqüència i ones mil·limètriquesThe goal of the Soil Moisture and Ocean Salinity mission over land is to infer surface soil moisture from multiangular L-band radiometric measurements. As the canopy affects the microwave emission of land, it is necessary to characterize different vegetation layers. This paper presents the Reference Pixel L-Band Experiment (REFLEX), carried out in June-July 2003 at the Vale/spl grave/ncia Anchor Station, Spain, to study the effects of grapevines on the soil emission and on the soil moisture retrieval. A wide range of soil moisture (SM), from saturated to completely dry soil, was measured with the Universitat Polite/spl grave/cnica de Catalunya's L-band Automatic Radiometer (LAURA). Concurrently with the radiometric measurements, the gravimetric soil moisture, temperature, and roughness were measured, and the vines were fully characterized. The opacity and albedo of the vineyard have been estimated and found to be independent on the polarization. The /spl tau/--/spl omega/ model has been used to retrieve the SM and the vegetation parameters, obtaining a good accuracy for incidence angles up to 55/spl deg/. Algorithms with a three-parameter optimization (SM, albedo albedo, and opacity) exhibit a better performance than those with one-parameter optimization (SM).Peer ReviewedIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC20052005-05-3120072007-05-28journal articlehttp://purl.org/coar/resource_type/c_6501NAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/1042reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/10422026-05-27T15:37:01Z
dc.title.none.fl_str_mv SMOS REFLEX 2003: L-Band Emissivity Characterization of Vineyards
title SMOS REFLEX 2003: L-Band Emissivity Characterization of Vineyards
spellingShingle SMOS REFLEX 2003: L-Band Emissivity Characterization of Vineyards
Vall-Llossera Ferran, Mercedes Magdalena|||0000-0003-1357-7098
Microwave measurements
Radiometry
Vegetation mapping
hydrological techniques
microwave measurement
radiometry
soil
vegetation mapping
Microones -- Mesurament
Radiometria
Vegetació -- Cartografia
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Circuits de microones, radiofreqüència i ones mil·limètriques
title_short SMOS REFLEX 2003: L-Band Emissivity Characterization of Vineyards
title_full SMOS REFLEX 2003: L-Band Emissivity Characterization of Vineyards
title_fullStr SMOS REFLEX 2003: L-Band Emissivity Characterization of Vineyards
title_full_unstemmed SMOS REFLEX 2003: L-Band Emissivity Characterization of Vineyards
title_sort SMOS REFLEX 2003: L-Band Emissivity Characterization of Vineyards
dc.creator.none.fl_str_mv Vall-Llossera Ferran, Mercedes Magdalena|||0000-0003-1357-7098
Camps Carmona, Adriano José|||0000-0002-9514-4992
Corbella Sanahuja, Ignasi|||0000-0001-5598-7955
Torres Torres, Francisco|||0000-0003-1160-6350
Duffo Ubeda, Núria|||0000-0002-9398-3995
Monerris Belda, Alessandra
Sabia, Roberto
Selva Valero, Daniel
Antolín, Carmen
López Baeza, Ernesto
Ferrer, Joan Ferran
Saleh, Kauzar
author Vall-Llossera Ferran, Mercedes Magdalena|||0000-0003-1357-7098
author_facet Vall-Llossera Ferran, Mercedes Magdalena|||0000-0003-1357-7098
Camps Carmona, Adriano José|||0000-0002-9514-4992
Corbella Sanahuja, Ignasi|||0000-0001-5598-7955
Torres Torres, Francisco|||0000-0003-1160-6350
Duffo Ubeda, Núria|||0000-0002-9398-3995
Monerris Belda, Alessandra
Sabia, Roberto
Selva Valero, Daniel
Antolín, Carmen
López Baeza, Ernesto
Ferrer, Joan Ferran
Saleh, Kauzar
author_role author
author2 Camps Carmona, Adriano José|||0000-0002-9514-4992
Corbella Sanahuja, Ignasi|||0000-0001-5598-7955
Torres Torres, Francisco|||0000-0003-1160-6350
Duffo Ubeda, Núria|||0000-0002-9398-3995
Monerris Belda, Alessandra
Sabia, Roberto
Selva Valero, Daniel
Antolín, Carmen
López Baeza, Ernesto
Ferrer, Joan Ferran
Saleh, Kauzar
author2_role author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Microwave measurements
Radiometry
Vegetation mapping
hydrological techniques
microwave measurement
radiometry
soil
vegetation mapping
Microones -- Mesurament
Radiometria
Vegetació -- Cartografia
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Circuits de microones, radiofreqüència i ones mil·limètriques
topic Microwave measurements
Radiometry
Vegetation mapping
hydrological techniques
microwave measurement
radiometry
soil
vegetation mapping
Microones -- Mesurament
Radiometria
Vegetació -- Cartografia
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Circuits de microones, radiofreqüència i ones mil·limètriques
description The goal of the Soil Moisture and Ocean Salinity mission over land is to infer surface soil moisture from multiangular L-band radiometric measurements. As the canopy affects the microwave emission of land, it is necessary to characterize different vegetation layers. This paper presents the Reference Pixel L-Band Experiment (REFLEX), carried out in June-July 2003 at the Vale/spl grave/ncia Anchor Station, Spain, to study the effects of grapevines on the soil emission and on the soil moisture retrieval. A wide range of soil moisture (SM), from saturated to completely dry soil, was measured with the Universitat Polite/spl grave/cnica de Catalunya's L-band Automatic Radiometer (LAURA). Concurrently with the radiometric measurements, the gravimetric soil moisture, temperature, and roughness were measured, and the vines were fully characterized. The opacity and albedo of the vineyard have been estimated and found to be independent on the polarization. The /spl tau/--/spl omega/ model has been used to retrieve the SM and the vegetation parameters, obtaining a good accuracy for incidence angles up to 55/spl deg/. Algorithms with a three-parameter optimization (SM, albedo albedo, and opacity) exhibit a better performance than those with one-parameter optimization (SM).
publishDate 2005
dc.date.none.fl_str_mv 2005
2005-05-31
2007
2007-05-28
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
NA
http://purl.org/coar/version/c_be7fb7dd8ff6fe43
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/1042
url https://hdl.handle.net/2117/1042
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
publisher.none.fl_str_mv IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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