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27.05.2025 14:19 Age: 3 days

New v2.0.1 of Experimental Multimission Gridded Sea Level Heights and Velocities with SWOT

Category: News of the Swot mission

A new version (2.0.1) of the Experimental Multimission Gridded Level 4 Sea Level Heights and Velocities with SWOT using MIOST mapping method is now available on AVISO.

This updated release features enhancements of the MIOST mapping algorithm and extends coverage over a longer period—from March 15, 2023, to December 31, 2024—compared to the previous version.

The Level 4 gridded product is constrained by Level 3 input data from the following sources:

  • CMEMS Global Ocean Along-Track L3 Sea Surface Heights Reprocessed (1993–ongoing, tailored for data assimilation) – DOI: 10.48670/moi-00146, Product ID: SEALEVEL_GLO_PHY_L3_MY_008_062 (for the period 2023-03-15 to 2024-06-01),
  • CMEMS Global Ocean Along-Track L3 Sea Surface Heights Near Real-Time – DOI: 10.48670/moi-00147, Product ID: SEALEVEL_GLO_PHY_L3_NRT_008_044 (for the period 2024-06-01 to 2024-12-31),
  • SWOT L3_LR_SSH Product (v2.0.1) – [DOI: 10.24400/527896/A01-2023.018]. (for the period 2023-03-28 to 2024-12-31).

The improvements compared to the former version are detailed in the release note here
The information is available on the product page here and in the handbook

Data access:

CNES AVISO FTP/SFTP access (with AVISO+ credentials): 

  • FTP: ftp://ftp-access.aviso.altimetry.fr:21
  • SFTP: ftp://ftp-access.aviso.altimetry.fr:2122
    • Path: /duacs-experimental/dt-phy-grids/l4_karin_nadir/v2.0.1

CNES AVISO THREDDS Data Server access:

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