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Rascle, Nicolas; Ardhuin, Fabrice. |
A multi-scale global hindcast of ocean waves is presented that covers the years 1994-2012, based on recently published parameterizations for wind sea and swell dissipation [Ardhuin, F., Rogers, E., Babanin, A., Filipot, J.-F., Magne, R., Roland, A., van der Westhuysen, A., Queffeulou, P., Lefevre, J.-M., Aouf, L., Collard, F., 2010. Semi-empirical dissipation source functions for wind-wave models: Part I. Definition, calibration and validation. J. Phys. Oceanogr. 40 (9), 1917-1941]. Results from this hindcast include traditional wave parameters, like the significant wave height and mean periods, and we particularly consider the accuracy of the results for phenomenal sea states, with significant heights above 14 m. Using unbiased winds, there is no evidence... |
Tipo: Text |
Palavras-chave: Waves; Hindcast; Air-sea fluxes; Stokes drift; Mean square slope; Seismic noise. |
Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00155/26582/25477.pdf |
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Rascle, Nicolas; Nouguier, Frederic; Chapron, Bertrand; Ocampo-torres, Francisco J.. |
High-resolution satellite images of the ocean surface in and around the sunglint often provide unique observations of sub-mesoscale upper ocean surface processes. Local anomalies of wind, waves, currents or surfactants appear on the images as local anomalies of brightness. A quantitative interpretation of those brightness anomalies must relate them to slope properties of the wave field, which are to the lowest order described by the mean square slope (mss). The prevailing paradigm for such interpretation is that of the critical zenith angle. It states that, for sub-critical zenith view angle, brightness and mss anomalies have opposite signs, and this defines the so-called inversion region. This prevailing paradigm implicitly builds on the assumption that... |
Tipo: Text |
Palavras-chave: Sea surface roughness; Surface current gradients; Submesoscale turbulence; Wave-current interaction; Surfactants; Sun glint imagery; SAR images; Multi-angle radiometers; Surface slope distribution; Mean square slope. |
Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00448/55964/57498.pdf |
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