Analysis of ENVISAT RA2 altimeter sigma-nought bloom events for S and Ku bands backscattering intercomparison
The RA2 radar altimeter onboard the European Satellite Envisat is a double band microwave instrument working at Ku- and S-band. The S-band measurements provide appropriate atmospheric corrections for the more precise Ku-band measurements, but are also used in conjunction with the Ku-band data in ord...
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H. Lacoste
2004
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ftunivromairis:oai:iris.uniroma1.it:11573/407822 2024-02-27T08:45:24+00:00 Analysis of ENVISAT RA2 altimeter sigma-nought bloom events for S and Ku bands backscattering intercomparison F. De Biasio S. Zecchetto PIERDICCA, Nazzareno PULVIRENTI, Luca F., De Biasio Pierdicca, Nazzareno S., Zecchetto Pulvirenti, Luca 2004 http://hdl.handle.net/11573/407822 eng eng H. Lacoste L. Ouwehand info:eu-repo/semantics/altIdentifier/isbn/9290928832 ispartofbook:European Space Agency, (Special Publication) ESA SP ENVISAT & ERS Symposium volume:ESA SP 572 firstpage:553 lastpage:556 http://hdl.handle.net/11573/407822 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-23844512780 info:eu-repo/semantics/conferenceObject 2004 ftunivromairis 2024-01-31T18:11:03Z The RA2 radar altimeter onboard the European Satellite Envisat is a double band microwave instrument working at Ku- and S-band. The S-band measurements provide appropriate atmospheric corrections for the more precise Ku-band measurements, but are also used in conjunction with the Ku-band data in order to investigate the underlying surface. In this study we try to identify differences and similarities of the backscatter signal in the two bands. We focus our attention on the condition of specular alike radar returns, which mostly occur on sea-ice regions. An attempt to find situations in which highly correlated radar waveforms in the two bands can be ascribed to simple scattering mechanisms is made in order to find indications on the mutual calibration of the two channels. The paper reports a number of cases ancountered while analyzing RA-2 data. Both level 2 (1 Hz geophysical parameters) and level 1 (18 Hz waveforms) have been used. Conference Object Sea ice Sapienza Università di Roma: CINECA IRIS |
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Open Polar |
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Sapienza Università di Roma: CINECA IRIS |
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ftunivromairis |
language |
English |
description |
The RA2 radar altimeter onboard the European Satellite Envisat is a double band microwave instrument working at Ku- and S-band. The S-band measurements provide appropriate atmospheric corrections for the more precise Ku-band measurements, but are also used in conjunction with the Ku-band data in order to investigate the underlying surface. In this study we try to identify differences and similarities of the backscatter signal in the two bands. We focus our attention on the condition of specular alike radar returns, which mostly occur on sea-ice regions. An attempt to find situations in which highly correlated radar waveforms in the two bands can be ascribed to simple scattering mechanisms is made in order to find indications on the mutual calibration of the two channels. The paper reports a number of cases ancountered while analyzing RA-2 data. Both level 2 (1 Hz geophysical parameters) and level 1 (18 Hz waveforms) have been used. |
author2 |
F., De Biasio Pierdicca, Nazzareno S., Zecchetto Pulvirenti, Luca |
format |
Conference Object |
author |
F. De Biasio S. Zecchetto PIERDICCA, Nazzareno PULVIRENTI, Luca |
spellingShingle |
F. De Biasio S. Zecchetto PIERDICCA, Nazzareno PULVIRENTI, Luca Analysis of ENVISAT RA2 altimeter sigma-nought bloom events for S and Ku bands backscattering intercomparison |
author_facet |
F. De Biasio S. Zecchetto PIERDICCA, Nazzareno PULVIRENTI, Luca |
author_sort |
F. De Biasio |
title |
Analysis of ENVISAT RA2 altimeter sigma-nought bloom events for S and Ku bands backscattering intercomparison |
title_short |
Analysis of ENVISAT RA2 altimeter sigma-nought bloom events for S and Ku bands backscattering intercomparison |
title_full |
Analysis of ENVISAT RA2 altimeter sigma-nought bloom events for S and Ku bands backscattering intercomparison |
title_fullStr |
Analysis of ENVISAT RA2 altimeter sigma-nought bloom events for S and Ku bands backscattering intercomparison |
title_full_unstemmed |
Analysis of ENVISAT RA2 altimeter sigma-nought bloom events for S and Ku bands backscattering intercomparison |
title_sort |
analysis of envisat ra2 altimeter sigma-nought bloom events for s and ku bands backscattering intercomparison |
publisher |
H. Lacoste |
publishDate |
2004 |
url |
http://hdl.handle.net/11573/407822 |
genre |
Sea ice |
genre_facet |
Sea ice |
op_relation |
info:eu-repo/semantics/altIdentifier/isbn/9290928832 ispartofbook:European Space Agency, (Special Publication) ESA SP ENVISAT & ERS Symposium volume:ESA SP 572 firstpage:553 lastpage:556 http://hdl.handle.net/11573/407822 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-23844512780 |
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1792054556214951936 |