AustralieFrV1, Main, Exploration, bibRecord, 008989

The Southern Ocean Waves Experiment. Part III: Sea Surface Slope Statistics and Near-Nadir Remote Sensing

Identifieur interne : 008989 ( Main/Exploration ); précédent : 008988; suivant : 008990

The Southern Ocean Waves Experiment. Part III: Sea Surface Slope Statistics and Near-Nadir Remote Sensing

Auteurs : E. J. Walsh [États-Unis] ; M. L. Banner [Australie] ; C. W. Wright [États-Unis] ; D. C. Vandemark [États-Unis] ; B. Chapron [France] ; J. Jensen [États-Unis] ; S. Lee [Australie]

Source :

Journal of physical oceanography [ 0022-3670 ] ; 2008.

RBID : Pascal:08-0244815

Descripteurs français

Pascal (Inist)
- Niveau mer, Pente surface mer, Donnée observation, Observation par avion, Télédétection radar, Altimétrie radar, Bande Ka, Rétrodiffusion, Analyse spectre, Topographie, Océan Indien, Tasmanie.
Wicri :
- topic : Océan Indien.

English descriptors

KwdEn :
- Aircraft observation, Indian Ocean, Ka band, Observation data, Radar altimetry, Radar remote sensing, Sea surface slope, Spectrum analysis, Tasmania Australia, backscattering, sea level, topography.

Abstract

During the Southern Ocean Waves Experiment (SOWEX), registered ocean wave topography and backscattered power data at Ka band (36 GHz) were collected with the NASA Scanning Radar Altimeter (SRA) off the coast of Tasmania under a wide range of wind and sea conditions, from quiescent to gale-force winds with 9-m significant wave height. Collection altitude varied from 35 m to over 1 km, allowing determination of the sea surface mean square slope (mss), the directional wave spectrum, and the detailed variation of backscattered power with incidence angle, which deviated from a simple Gaussian scattering model. The non-Gaussian characteristics of the backscatter increased systematically with the mss, suggesting that a global model to characterize Ka-band radar backscatter from the sea surface within 25° of nadir might be possible.

Affiliations:

Australie, France, États-Unis
Colorado, New Hampshire, Virginie

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Le document en format XML

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<front><div type="abstract" xml:lang="en">During the Southern Ocean Waves Experiment (SOWEX), registered ocean wave topography and backscattered power data at Ka band (36 GHz) were collected with the NASA Scanning Radar Altimeter (SRA) off the coast of Tasmania under a wide range of wind and sea conditions, from quiescent to gale-force winds with 9-m significant wave height. Collection altitude varied from 35 m to over 1 km, allowing determination of the sea surface mean square slope (mss), the directional wave spectrum, and the detailed variation of backscattered power with incidence angle, which deviated from a simple Gaussian scattering model. The non-Gaussian characteristics of the backscatter increased systematically with the mss, suggesting that a global model to characterize Ka-band radar backscatter from the sea surface within 25° of nadir might be possible.</div>
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The Southern Ocean Waves Experiment. Part III: Sea Surface Slope Statistics and Near-Nadir Remote Sensing

The Southern Ocean Waves Experiment. Part III: Sea Surface Slope Statistics and Near-Nadir Remote Sensing

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri