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            <gco:CharacterString>Tourbillons détectés en temps différé (Delayed-Time - DT) pour toute la période [1993 - aujourd'hui]. Les variables fournies incluent pour chaque fichier journalier, et pour un type de rotation (Cyclonique/Anticyclonique) :
- Position du centre (Longitude et latitude du centre du cercle le mieux ajusté avec le contour de la vitesse géostrophique moyenne circonférentielle maximale) ; 
- Amplitude (|SSH(local_extremum) - SSH(outermost_contour)|) ; 
- Rayon de vitesse (Rayon du cercle de meilleur ajustement avec le contour de la vitesse géostrophique moyenne circonférentielle maximale) ;
- Vitesse moyenne (Vitesse géostrophique moyenne du contour définissant le rayon de vitesse) ;
- Profil de vitesse (profil des valeurs moyennes de vitesse du contour effectif vers l'intérieur jusqu'au plus petit contour intérieur) ;
- Contour effectif (Plus grand contour du tourbillon détecté) ;
- Contour de vitesse (Contour de la vitesse géostrophique moyenne circonférentielle maximale pour le tourbillon détecté).

Les cartes "tous satellites" (Allsat) sont construites avec tous les satellites disponibles à un moment donné, améliorant la représentation des petites échelles dans les cartes en raison de la diversité de la localisation des traces et des différentes périodes de répétition des missions altimétriques. Les données utilisées sont les données quotidiennes en temps différé "Allsat" DUACS2021 version https://doi.org/10.48670/moi-00148, avec la variable " Gridded Global Absolute Dynamic Topographies (ADT)" du Copernicus Marine Service (CMEMS) http://marine.copernicus.eu/.

Plusieurs autres versions existent : Temps différé "Twosat" et une version en temps réel, décrites sur d'autres fiches de métadonnées.
Gamme de produit : produit altimétrique dérivé des produits Ssalto/Duacs, grillé multimissions
Contenu : trajectoires des tourbillons détectés dans les données altimétriques 
Format : NetCDF-4 Classic with CF standards.

Statistical analysis document (Figures following Chelton et al. 2011): https://www.aviso.altimetry.fr/fileadmin/documents/data/products/value-added/META3.2_allsat_report.pdf
Reading software: examples in Python programming language. Details on Aviso+ Users Newsletter #14, page 4: Tools for the Mesoscale Eddy Trajectory Atlas, https://www.aviso.altimetry.fr/fileadmin/documents/newsstand/Newsletter/aviso_newsletter_14.pdf#page=4 
Code delivery: the open source code is available at  https://github.com/AntSimi/py-eddy-tracker from version META3.0 onwards. When using the code, please cite "The code used to compute the Mesoscale Eddy Trajectories Atlas from version 3.0 onwards, was developed in collaboration between IMEDEA (E. Mason) and CLS, is freely available under GNU General Public License https://github.com/AntSimi/py-eddy-tracker ".
Image of the month, June 2017: Eddies everywhere, https://www.aviso.altimetry.fr/en/news/image-of-the-month/2017/jun-2017-eddies-everywhere.html</gco:CharacterString>
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Plusieurs autres versions existent : Temps différé "Twosat" et une version en temps réel, décrites sur d'autres fiches de métadonnées.
Gamme de produit : produit altimétrique dérivé des produits Ssalto/Duacs, grillé multimissions
Contenu : trajectoires des tourbillons détectés dans les données altimétriques 
Format : NetCDF-4 Classic with CF standards.

Statistical analysis document (Figures following Chelton et al. 2011): https://www.aviso.altimetry.fr/fileadmin/documents/data/products/value-added/META3.2_allsat_report.pdf
Reading software: examples in Python programming language. Details on Aviso+ Users Newsletter #14, page 4: Tools for the Mesoscale Eddy Trajectory Atlas, https://www.aviso.altimetry.fr/fileadmin/documents/newsstand/Newsletter/aviso_newsletter_14.pdf#page=4 
Code delivery: the open source code is available at  https://github.com/AntSimi/py-eddy-tracker from version META3.0 onwards. When using the code, please cite "The code used to compute the Mesoscale Eddy Trajectories Atlas from version 3.0 onwards, was developed in collaboration between IMEDEA (E. Mason) and CLS, is freely available under GNU General Public License https://github.com/AntSimi/py-eddy-tracker ".
Image of the month, June 2017: Eddies everywhere, https://www.aviso.altimetry.fr/en/news/image-of-the-month/2017/jun-2017-eddies-everywhere.html

Références bibliographique
- Pegliasco, C., Delepoulle, A., Morrow, R., Faugère, Y., and Dibarboure, G.: META3.1exp : A new Global Mesoscale Eddy Trajectories Atlas derived from altimetry, Earth Syst. Sci. Data Discuss. [preprint], https://doi.org/10.5194/essd-2021-300 in review, 2021.
- Mason, E., A. Pascual, and J.C. McWilliams, 2014: A New Sea Surface Height–Based Code for Oceanic Mesoscale Eddy Tracking. J. Atmos. Oceanic Technol., 31, 1181–1188, https://doi.org/10.1175/JTECH-D-14-00019.1</gco:CharacterString>
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