Two-dimensional structure functions for characterizing convective rolls in the marine atmospheric boundary layer from Sentinel-1 SAR images - Pôle AI & Ocean Accéder directement au contenu
Article Dans Une Revue Remote Sensing Letters Année : 2022

Two-dimensional structure functions for characterizing convective rolls in the marine atmospheric boundary layer from Sentinel-1 SAR images

Résumé

We study the shape of convective rolls in the Marine Atmospheric Boundary Layer from Synthetic Aperture Radar images of the ocean. We propose a multiscale analysis with structure functions which allow an easy generalization to analyse high-order statistics and so to finely describe the shape of the rolls. The two main results are : 1) second order structure function characterizes the wavelength and direction of rolls just like correlation or power spectrum do, 2) high order statistics can be studied with skewness and Flatness which characterize the asymmetry and intermittency of rolls respectively. From the best of our knowledge, this is the first time that the asymmetry and intermittency of rolls is shown from radar images of the ocean surface.
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Dates et versions

hal-03576400 , version 1 (16-02-2022)
hal-03576400 , version 2 (03-03-2022)

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Citer

Carlos Granero-Belinchon, Stéphane G. Roux, Nicolas B. Garnier, Pierre Tandeo, Bertrand Chapron, et al.. Two-dimensional structure functions for characterizing convective rolls in the marine atmospheric boundary layer from Sentinel-1 SAR images. Remote Sensing Letters, 2022, 13 (9), pp.946-957. ⟨10.1080/2150704X.2022.2112107⟩. ⟨hal-03576400v2⟩
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