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Earth-Viewing L-Band Radiometer Sensing of Sea Surface Scattered Celestial Sky Radiation—Part II: Application to SMOS ArchiMer
Reul, Nicolas; Tenerelli, Joseph; Floury, N; Chapron, Bertrand.
We examine how the rough sea surface scattering of L-band celestial sky radiation might affect the measurements of the future European Space Agency Soil Moisture and Ocean Salinity (SMOS) mission. For this purpose, we combined data from several surveys to build a comprehensive all-sky L-band celestial sky brightness temperature map for the SMOS mission that includes the continuum radiation and the hydrogen line emission rescaled for the SMOS bandwidth. We also constructed a separate map of strong and very localized sources that may exhibit L-band brightness temperatures exceeding 1000 K. Scattering by the roughened ocean surface of radiation from even the strongest localized sources is found to reduce the contributions from these localized strong sources...
Tipo: Text Palavras-chave: Sea surface electromagnetic scattering; Microwave radiometry.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/publication-3636.pdf
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