The Eddy Experiment: GNSS-R speculometry for directional sea-roughness retrieval from low altitude aircraft - art. no. L21307
| Type | Article | ||||||||
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| Date | 2004-11 | ||||||||
| Language | English | ||||||||
| Author(s) | Germain O, Ruffini Giulio, Soulat F, Caparrini M, Chapron Bertrand, Silvestrin P | ||||||||
| Affiliation(s) | Starlab, Res Dept, E-08035 Barcelona, Spain. Inst Francais Rech Exploitat Mer, Plouzane, France. European Space Agcy, European Space Res & Technol Ctr, NL-2200 AG Noordwijk, Netherlands. |
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| Source | Geophysical Research Letters (0094-8276) (AGU), 2004-11 , Vol. 31 , N. 21 , P. NIL_17-NIL_20 | ||||||||
| DOI | 10.1029/2004GL020991 | ||||||||
| WOS© Times Cited | 77 | ||||||||
| Keyword(s) | Numerical model, Velocity, Sea surface roughness, Eddies, Delay Doppler Map, Remote sensing, Oceanography | ||||||||
| Abstract | 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. | ||||||||
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