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dc.contributor.authorRodríguez, R
dc.contributor.authorMonerris Belda, Alessandra
dc.contributor.authorSabia, Roberto
dc.contributor.authorMiranda Mendoza, Jorge José
dc.contributor.authorCamps Carmona, Adriano José
dc.contributor.authorVall-Llossera Ferran, Mercedes Magdalena
dc.contributor.authorVillarino Villarino, Ramón
dc.contributor.authorReul, N
dc.contributor.authorChapron, B
dc.contributor.authorCorbella Sanahuja, Ignasi
dc.contributor.authorDuffo Ubeda, Núria
dc.contributor.authorTorres Torres, Francisco
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
dc.identifier.citationCamps, A. [et al.]. The emissivity of foam-covered water surface at L-band: theoretical modeling and experimental results from the FROG 2003 field experiment. "IEEE transactions on geoscience and remote sensing", Maig 2005, vol. 43, núm. 5, p. 925-937.
dc.description.abstractSea surface salinity can be measured by microwave radiometry at L-band (1400–1427 MHz). This frequency is a compromise between sensitivity to the salinity, small atmospheric perturbation, and reasonable pixel resolution. The description of the ocean emission depends on two main factors: 1) the sea water permittivity, which is a function of salinity, temperature, and frequency, and 2) the sea surface state, which depends on the wind-induced wave spectrum, swell, and rain-induced roughness spectrum, and by the foam coverage and its emissivity. This study presents a simplified two-layer emission model for foam-covered water and the results of a controlled experiment to measure the foam emissivity as a function of salinity, foam thickness, incidence angle, and polarization. Experimental results are presented, and then compared to the two-layer foam emission model with the measured foam parameters used as input model parameters. At 37 psu salt water the foam-induced emissivity increase is 0.007 per millimeter of foam thickness (extrapolated to nadir), increasing with increasing incidence angles at vertical polarization, and decreasing with
dc.format.extent13 p.
dc.publisherIEEE Press. Institute of Electrical and Electronics Engineers
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica
dc.subject.lcshBrightness temperature
dc.subject.lcshMicrowave remote sensing
dc.subject.lcshSignal theory (Telecommunication)
dc.titleThe emissivity of foam-covered water surface at L-band: theoretical modeling and experimental results from the FROG 2003 field experiment
dc.subject.lemacMicroones -- Mesurament
dc.subject.lemacSenyal, Teoria del (Telecomunicació)
dc.contributor.groupUniversitat Politècnica de Catalunya. RSLAB - Grup de Recerca en Teledetecció
dc.contributor.groupUniversitat Politècnica de Catalunya. RF&MW - Grup de Recerca de sistemes, dispositius i materials de RF i microones
dc.rights.accessOpen Access
dc.description.versionPostprint (published version)
local.citation.authorCamps, A.; Vall-Llossera, M.; Villarino, R.; Reul, N.; Chapron, B.; Corbella, I.; Duffo, N.; Torres, F.; Miranda, J.; Sabia, R.; Monerris, A.; Rodríguez, R.
local.citation.publicationNameIEEE transactions on geoscience and remote sensing

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