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Dynamic Atmospheric Correction

Types of dataset: auxiliary products

Contents: year by year directories (1992 - ongoing), day by day groups of files, 4 files a day (12:00, 6:00, 12:00, 18:00 GMT); grid is a regular grid (0.25°x0.25°)

DOI: 10.24400/527896/a01-2022.001  -  more metadata

Use: coastal oceanography, operational oceanography, ocean circulation, tide studies


  • Mog2D-G High Resolution barotropic model developed by Legos/CNRS for high frequency (i.e less than 20 days) 
  • an IB correction developed by CLS, assuming a static response of the ocean to atmospheric forcing, and neglecting wind effects for low frequency (i.e more than 20 days)
    (more information)

Geographic coverage: global

Format: NetCDF

Distribution media: FTP

Condition of access: products delivered for any purposes as stated in the licence agreement. Further information: Access to auxiliary products.
To get an acces to the Dynamic Atmospheric Correction, please fill in, select the given product and valid the following form:

File weight: 900 KB per file
How to cite Aviso data?
Copyright: 1992- ongoing Cnes/CNRS-Legos/CLS


Note that a specific DAC has been computed for the Calval Phase, available here.

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