The Eddy Experiment: GNSS-R speculometry for directional sea-roughness retrieval from low altitude aircraft

The Eddy Experiment: GNSS-R speculometry for directional sea-roughness retrieval from low altitude aircraft

We report the retrieval of sea surface directional mean square slope from Global Navigation Satellite System Reflections (GNSS‐R) Delay‐Doppler‐Map (DDM) data collected during an experimental flight at 1 km altitude. We emphasize the utilization of the entire DDM to more precisely infer ocean roughn...

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Veröffentlicht in:Geophysical research letters 2004-11, Vol.31 (21), p.L21307-n/a
Hauptverfasser: Germain, O., Ruffini, G., Soulat, F., Caparrini, M., Chapron, B., Silvestrin, P.
Format: Artikel
Sprache:eng
Schlagworte:
Eddies and mesoscale processes
Instruments and techniques
Marine
Oceanography
Physical
Radio oceanography
Radio Science
Remote sensing
Remote sensing and electromagnetic processes
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Zusammenfassung:We report the retrieval of sea surface directional mean square slope from Global Navigation Satellite System Reflections (GNSS‐R) Delay‐Doppler‐Map (DDM) data collected during an experimental flight at 1 km altitude. We emphasize the utilization of the entire DDM to more precisely infer ocean roughness directional parameters, and argue that the DDM exhibits the impact of both roughness and scatterer velocity. Obtained estimates are analyzed and compared with Jason‐1 measurements, ECMWF numerical weather model outputs and optical data.
ISSN:0094-8276
1944-8007
DOI:10.1029/2004GL020991