Scientia Marina, Vol 68, No 1 (2004)

Ocean wave mapping from ERS SAR images in the presence of swell and wind-waves


https://doi.org/10.3989/scimar.2004.68n11

Stéphan Rousseau
Institut de Ciències del Mar (CSIC) - Centre de Sécurité des Navires d’Aquitaine, France

Philippe Forget
Laboratoire de Sondages Electromagnétiques de l’environnement Terrestre, CNRS, Université de Toulon et du Var, France

Abstract


We present a method for estimating the significant wave height of ocean waves (SWH) in coastal zones from satellite SAR images and using the value of the width of the spectral azimuthal cutoff. The method deals with the case of an energetic swell propagating over a wind wave system. It requires the preliminary retrieval of swell parameters using the wave-SAR spectral quasi-linear relationship. The method is applied to two ERS-1 SAR images in coastal zones.

Keywords


SAR imagery; ocean waves; significant wave height

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