Mobile version

Mesoscale Eddy Trajectory Atlas Product META3.1exp DT

Types of dataset: multimission altimeter products.


Contents: multimission altimetry-derived eddy trajectories in version 3.1 exp DT (for Delayed-Time) computed with two series of upstream data: the "two satellites" constellation maps (distributed by C3S) and the "all satellites" constellation maps (distributed by CMEMS).

Use: study of ocean mesoscale eddies

Condition of access: These products are available free of charge for any purpose (scientific, operational, commercial, etc.) as stated in the licence agreement. Users should keep in mind that these products are experimental products. Notably, they are not produced on an operational basis. 

Open data access service:

Description: Anticyclonic and Cyclonic eddies detected from the multimission altimetry datasets, with their location, contours, amplitude, radius speed and associated metadata, for the whole altimetry period: 1993-ongoing

Geographic coverage: global

Format: NetCDF-4 Classic with CF standards.

Video: two versions of the detection algorithms used to produce the Delayed Time Mesoscale Eddy Trajectories Atlas are analysed: the PET (following Mason et al. 2014, available on ​) used for META3.1exp DT (top) and OSU (similar to Chelton et al. 2011) used for META2.0 DT (bottom). For complete description, please visit the link: .


Citation: If you use the data, please cite:: "The altimetric Mesoscale Eddy Trajectories Atlas (META3.1exp DT) was produced by SSALTO/DUACS and distributed by AVISO+ ( ) with support from CNES, in collaboration with IMEDEA (DOI: 10.24400/527896/a01-2021.001 for the META3.1exp DT allsat version  and 10.24400/527896/a01-2021.002  for the META3.1exp DT twosat version)".


  • Pegliasco, C., Delepoulle, A., Mason, E., Morrow, R., Faugère, Y., Dibarboure, G., 2022. META3.1exp: a new global mesoscale eddy trajectory atlas derived from altimetry. Earth Syst. Sci. Data 14, 1087–1107. 
  • 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,

Copyright : 1993 - ongoing CLS - Cnes - IMEDEA 

Eddy dataset

Product Satellite Authenticated access service  Frequency Data period File weight
Merged version 3.1exp
allsat see your MY AVISO+ yearly From Jan 1993 to Mar 2020 3 files for Cyclonic and Anticyclonic eddies:
long series: max 7.1 Gb
shorts series: max 510 Mb
untracked series: max 95 Mb

See also

META3.2 DT version
META3.2exp NRT
META3.0exp NRT (this version is not maintained anymore)
META2.0 DT (not recommended,this version is not maintained anymore)
Back to previous page

Rss feedsContactPartnersFAQLexiconLegal noticePersonal Data Protection PolicyMobile
You must enable cookies in your browser preferences to save the modifications
You are using an older version of Internet Explorer, please update to take full advantage of Aviso+ features

Customize the home page

View all widgets
Reduce display
Public profile
User profile

Select/Deselect widgets

Discover AVISO+

Customizable home, reading tools, products search guide, etc.. Discover step by step the features of the new site AVISO+.

Customizable homepage

This home page is composed of blocks called "widgets".

Rearrange the blocks with a "Click & Drop".

Hide a widget with the cross at the top right. Reset or add a widget with the "wrench" icon. The "User" and "Public" profiles offer a predefined organization.

All the modifications are automatically saved as cookies on your machine so as to enable you to have your own specific AVISO+.

Reading tools

Ease your reading by choosing the page background colour (black/white) and/or by modifying the font size.

Browsing menu and breadcrum trail

To ease your browsing through AVISO+, you can use at any time the main banner items with the interactive submenus or use the browsing menu on the left side of the screen (it is open by default). For more readiness of the page contents, you can fold and unfold the browsing menu by clicking on the tab. At any time you can know where you are thanks to the browsing menu or the breadcrum at the top of the page.

Products search guide

The first submenu of the "Data" banner item leads you to a new search form enabling you to find quickier the product that suits your needs. The list of results is updated according to your selection criteria.

AVISO+ Multimedia

The first submenu of the "Multimedia" banner item leads you to AVISO+ collections of images and videos linked to altimetry and its applications. Have a nice visit!