GHRSST Level 3C sub-skin Sea Surface Temperature from the Geostationary Operational Environmental Satellites (GOES 13) Imager in East position (GDS V2) produced by OSI SAF

A regional Group for High Resolution Sea Surface Temperature (GHRSST) Level 3 Collated (L3C) dataset for the America Region (AMERICAS) based on retrievals from the GOES-13 Imager on board GOES-13 satellite.

The European Organization for the Exploitation of Meteorological Satellites (EUMETSAT),
Ocean and Sea Ice Satellite Application Facility (OSI SAF) is producing SST products in near real
time from GOES 13 in East position. GOES 13 imager level 1 data are acquired at Meteo-
France/Centre de Meteorologie Spatiale (CMS) through the EUMETSAT/EUMETCAST system.
SST is retrieved from the GOES 13 infrared channels (3.9 and 10.8 micrometer) using a multispectral
algorithm. Due to the lack of 12 micrometer channel in the GOES 13 imager, SST retrieval is not possible
in daytime conditions. Atmospheric profiles of water vapor and temperature from a numerical
weather prediction model, together with a radiatiave transfer model, are used to correct the
multispectral algorithm for regional and seasonal biases due to changing atmospheric conditions.
Every 30 minutes slot is processed at full satellite resolution. The operational products are then
produced by remapping over a 0.05 degree regular grid (60S-60N and 135W-15W) SST fields
obtained by aggregating 30 minute SST data available in one hour time, and the priority being
given to the value the closest in time to the product nominal hour. The product format is compliant
with the GHRSST Data Specification (GDS) version 2.