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	Provedor de dados ArchiMer (2) Autor Chapron, Bertrand (2) Zabolotskikh, E.v. (2) Balashova, E.a. (1) Palavra-chave AMSR2 (2) Arctic (2) Brightness temperatures (2) Physical modeling (2) Geophysical model functions (1) Microwave radiation (1) Polarization difference (1) Satellite microwave radiometers (1) Satellite passive microwave radiometers (1) Sea ice (1) Sea ice concentration (1) Sea surface wind speed (1) Mais... Tipo do documento Text (2) Ano 2019 (2) País France (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Advanced method for sea ice concentration retrieval from satellite microwave radiometer measurements at frequencies near 90 GHz ArchiMer Zabolotskikh, E.v.; Balashova, E.a.; Chapron, Bertrand. An advanced method for sea ice concentration retrieval from satellite microwave radiometer measurements at frequencies near 90 GHz is presented. The method is based on the new approach for the determination of the tie points ― the polarization differences (PD) of the brightness temperatures (TB) of the ocean-atmosphere system (PDW) and the sea ice-atmosphere system microwave radiation (PDSI). The approach is based on the results of physical modeling of the sea ice – ocean – atmosphere TB and the analysis of the measurements of the Advanced Microwave Scanning Radiometer 2 (AMSR2) in the Arctic region. The TB simulation is carried out for the whole ranges of the Arctic atmospheric conditions and sea ice and ocean parameters. The method of sea ice... Tipo: Text Palavras-chave: Sea ice; Sea ice concentration; Arctic; Satellite passive microwave radiometers; Brightness temperatures; AMSR2; Polarization difference; Physical modeling. Ano: 2019 URL: https://archimer.ifremer.fr/doc/00660/77194/78613.pdf Geophysical model functions for cold water microwave radiation dependency on wind speed in K and Ka range at an incidence angle of 55° ArchiMer Zabolotskikh, E.v.; Chapron, Bertrand. Geophysical model functions (GMFs) of the ocean microwave radiation dependence on wind speed at the frequencies of K and Ka range for an incidence angle of 55° are derived using the measurements of the satellite microwave radiometer Advanced Microwave Scanning Radiometer 2 (AMSR2) over open Arctic ocean at the sea surface temperatures (SST), not exceeding 10 °C. To estimate ocean radiation coefficients, surface microwave radiation was calculated using physical modeling of the ocean – atmosphere system brightness temperature. The simulation results made it possible to estimate surface radiation at 18.7, 23.8 and 36.5 GHz on the vertical and horizontal polarization with known atmospheric parameters, based on the ERA-Interim reanalysis data. These estimates... Tipo: Text Palavras-chave: Microwave radiation; Geophysical model functions; Sea surface wind speed; Arctic; Satellite microwave radiometers; Brightness temperatures; AMSR2; Physical modeling. Ano: 2019 URL: https://archimer.ifremer.fr/doc/00660/77193/78614.pdf Registros recuperados: 2 Primeira ... 1 ... Última

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