Upgrading of Ice and Sea Surface Temperature OSI-205


Dear OSI SAF Ice and Sea Surface Temperature User,

Issued Thu Sep 20 11:12:43 2018 UTC

As part of our commitment to provide you with better data, we are pleased to inform you that we will proceed to upgrade our product "High Latitude L2 Sea and Sea Ice Surface Temperature OSI-205" on Thursday the 11th October 2018.

This will carry the following changes:
- Use of satellite Metop-B instead of the current Metop-A. Despite the change of satellite, we will continue to use the instrument AVHRR.
- The deviation from last SST analysis is included as a variable with this name "dt_analysis", not applied to ice surfaces.
- The total uncertainty "sses_standard_deviation" is the root of the summed squares of 3 uncertainty variables: Global "large_scale_correlated_uncertainty", Random "uncorrelated_uncertainty" and Synoptic "synoptically_correlated_uncertainty". These are provided for consistency as part of the product.

Other than that, you should know that the product structure (file naming, variable names, dimensions, resolution) remains the same.

You can find documentation following these links:
- Product users manual.
- Validation report.
- Algorithm theoretical basis document.

You can find sample files on ftp://ftp.dmi.dk/sat/ist/OSI-205-a/. You will find the data for the current product and for the same dates on ftp://ftp.dmi.dk/sat/ist/OSI-205/.

Should you have any questions, do not hesitate in contacting us.


Best Regards,