Message Service #3326

25 July 2025

  • Sea Surface Temperature

New MTG Sea Surface Temperature product

In the continuity of the Meteosat Sea Surface Temperature [OSI-206-a] based on Meteosat Second Generation in 0°, the Level 3 MTG/FCI Sea Surface Temperature [OSI-206-b], based on Meteosat Third Generation input, is now ready to be released with a pre-operational status.

The product is already available on the OSI SAF FTP server hosted by Ifremer and will be distributed on EUMETCast from 7 August.

Like for the MSG product, the MTG product is a level 3 hourly sub-skin Sea Surface Temperature derived from Meteosat at 0° longitude, covering 60S-60N and 60W-60E and re-projected on a 0.05° regular grid, in GHRSST compliant netCDF format.

The MTG product benefits from the higher temporal and spatial resolution of MTG, but the output files have the same temporal and spatial sampling as the MSG product.

The OSI SAF MTG SST product is in line with the requirements, as you can read in the Scientific Validation Report available on the product page, but is released as pre-operational, because of the limited validation period (3 months).

The Product User Manual and the Algortihm Theoretical Basis Document are also available on the product page.

We invite you to use the SST MTG product and provide feedback to us, either positive or negative.

The MSG SST product is however still distributed at least until the MTG product gets the operational status.

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