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.