Level 3, hourly, sub-skin Sea Surface Temperature derived from **Meteosat Third Generation (MTG)** at 0° longitude, covering 60S-60N and 60W-60E and re-projected on a 0.05° regular grid, in GHRSST compliant netCDF format.

The satellite input data come from MTG level 1 data processed at EUMETSAT. SST is retrieved from the Flexible Combined Imager (FCI) spectral imaging instrument, using a multi-spectral algorithm and a cloud mask.

Atmospheric profiles of water vapor and temperature from a numerical weather prediction model, Sea Surface Temperature from an analysis, together with a radiative transfer model, are used to correct the multispectral algorithm for regional and seasonal biases due to changing atmospheric conditions.The quality of the products is monitored regularly by daily comparison of the satellite estimates against buoy measurements.

The product format is compliant with the GHRSST Data Specification (GDS) version 2. Users are advised to use data only with quality levels 3, 4 and 5.

This dataset is generated by Meteo-France in the frame of the [EUMETSAT Ocean & Sea Ice Satellite Application Facility (OSI SAF)](https://osi-saf.eumetsat.int/).