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            <gco:CharacterString>Tourbillons détectés en temps différé (Delayed-Time - DT) pour la période [01/01/1993 - 08/09/2023]. 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/.</gco:CharacterString>
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- 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/.</gmd:LocalisedCharacterString>
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                  <gmd:LocalisedCharacterString locale="#EN">Eddies detected in Delayed-Time (DT) for the period [1993/01/01 - 2023/09/08]. Variables provided include day-by-day, and for one rotation type (Cyclonic/Anticyclonic) :
- Center position (Longitude and latitude of the center of the best fit circle with the contour of maximum circum-average geostrophic speed); 
- Amplitude (|SSH(local_extremum) – SSH(outermost_contour)|); 
- Speed radius (Radius of the best fit circle with the contour of maximum circum-average geostrophic speed);
- Speed average (Average geostrophic speed of the contour defining the speed radius);
- Speed profile (Profile speed average values from effective contour inwards to smallest inner contour);
- Effective contour (Largest contour of the detected eddy);
- Speed contour (Contour of maximum circum-average geostrophic speed for the detected eddy).

The ”allsatellite” maps (Allsat) are built with all the available satellites at a given time, improving the small scales representation in the maps due to the diversity of the tracks’ location and the different repetition periods of the altimetric missions. The data used are “all-satellite” daily Delayed Time DUACS2021 version https://doi.org/10.48670/moi-00148, with the variable "Gridded Global Absolute Dynamic Topographies (ADT)" from Copernicus Marine Service (CMEMS) http://marine.copernicus.eu/.</gmd:LocalisedCharacterString>
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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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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</gmd:LocalisedCharacterString>
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Several versions exist: Delayed time "Twosat" and a real time version, described on other metadata sheets.
Types of dataset: multimission altimeter products.
Contents: multimission altimetry-derived eddy trajectories
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

References:
- 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</gmd:LocalisedCharacterString>
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