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Communication dans un congrès

Comparison of inversion models of wind speed retrieval from C-band Sentinel-1 and X-band TerraSAR-X data

Tran Vu La 1, 2 Ali Khenchaf 1, 2 Fabrice Comblet 1, 2 Carole Nahum 3
1 Lab-STICC_ENSTAB_MOM_PIM
Lab-STICC - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance
2 Pôle STIC_REMS
ENSTA Bretagne - École Nationale Supérieure de Techniques Avancées Bretagne
Abstract : Retrieval of sea surface wind speed from Synthetic Aperture Radar (SAR) data is one of the most widely used methods, since it can give higher resolutions than the other available surface wind sources. For this approach, two principal methods can be found: one is based on electromagnetic (EM) models and the other is based on empirical (EP) ones. In both indicated ways, the Geophysical Model Functions (GMFs) are used to describe the dependency of radar scattering on wind speed and the geometry of observations. By knowing radar scattering and geometric parameters from SAR data, it is possible to invert the GMFs to retrieve sea wind speed. Wind speed estimated by two studied models is compared together and evaluated with measured data. Based on the comparisons, the advantages and limits of the studied models are analyzed and discussed.
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https://hal.archives-ouvertes.fr/hal-01653333
Contributeur : Annick Billon-Coat <>
Soumis le : vendredi 1 décembre 2017 - 12:20:55
Dernière modification le : mercredi 24 juin 2020 - 16:19:51

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Tran Vu La, Ali Khenchaf, Fabrice Comblet, Carole Nahum. Comparison of inversion models of wind speed retrieval from C-band Sentinel-1 and X-band TerraSAR-X data. IGARSS 2016, Jul 2016, Beijing, China. ⟨10.1109/IGARSS.2016.7729584⟩. ⟨hal-01653333⟩

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