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Provedor de dados:  ArchiMer
País:  France
Título:  Geophysical Model Function for the AMSR2 C-Band Wind Excess Emissivity at High Winds
Autores:  Zabolotskikh, Elizaveta V.
Reul, Nicolas
Chapron, Bertrand
Data:  2016-01
Ano:  2016
Palavras-chave:  Atmosphere
Geophysical measurements
Passive microwave remote sensing
Tropical cyclones (TCs)
Resumo:  Measurements of the Advanced Microwave Scanning Radiometer 2 (AMSR2) onboard GCOM-W1 satellite at 6.925 and 7.3 GHz and both linear polarizations over tropical cyclones (TCs) during 2012 – 2014 are used to derive a new geophysical function relating the brightness temperature to the sea surface wind speed (SWS) in extreme conditions. . Similar sensitivity to SWS at close C-band frequencies allowed to correct for the atmospheric contributions to the microwave radiance and estimate the brightness temperature (TB) at the surface under the TCs, combining theoretical modeling and measured TB analyses. Estimated oceanic TBs were regressed against the wind speeds from the Best Track Archive to derive the new geophysical model function (GMF) for the wind speed excess emissivity at AMSR2 C-band microwave frequencies.
Tipo:  Text
Idioma:  Inglês

Editor:  Ieee-inst Electrical Electronics Engineers Inc
Formato:  application/pdf
Fonte:  Ieee Geoscience And Remote Sensing Letters (1545-598X) (Ieee-inst Electrical Electronics Engineers Inc), 2016-01 , Vol. 13 , N. 1 , P. 78-81
Direitos:  2015 IEEE


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