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Description

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.

Product Summary

Platforms
GOES-13
Instruments
GOES-13 Imager
Spatial Extent

N: 60 S: -60 E: -15 W: -135

Spatial Resolution
0.05 Decimal Degrees x 0.05 Decimal Degrees
Geographic Region
BLACK SEA
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2010-01-01 to 2017-12-14
Data Partner
Physical Oceanography Distributed Active Archive Center, Jet Propulsion Laboratory, NASA (NASA/JPL/PODAAC)
Concept ID
C2499940522-POCLOUD
Data State
COMPLETE
Number of Files/Granules
66069
Processing Level
3
Published
Updated
Science Keywords
Sea Surface Temperature

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

OSISAF. (2015). GHRSST Level 3C America Regional Subskin Sea Surface Temperature from the Geostationary Operational Environmental Satellites (GOES) Imager on the GOES-13 satellite [Data set]. NASA Physical Oceanography Distributed Active Archive Center. https://doi.org/10.5067/GHG13-3CO01 Date Accessed: 2025-12-14

Documents

Variables

Variables are a set of physical properties whose values determine the characteristics or behavior of something. For example, temperature and pressure are variables of the atmosphere. Parameters and variables can be used interchangeably. Variable level attributes provide individual information for each variable.

The Name in this table is the variable name. Fill value indicates missing or undefined data points in a variable. Valid range is the range of values the variable can store. Scale factor is used to increase or decrease the size of an object and can be used to correct for distortion. For questions on a specific variable, please use the Earthdata Forum.

Name Description Units Data Type Fill Value Valid Range Scale Factor
adi_dtime_from_sst Difference in hours between the ADI and SST data hour byte -128 -127 to 127 0.1
aerosol_dynamic_indicator Estimate of the potential for aerosol contamination count byte -128 0 to 127 0.1
dt_analysis The difference between this SST and the climatology kelvin byte -128 -127 to 127 0.1
l2p_flags These flags are important to properly use the data. N/A int N/A N/A 1
lat lat degrees_north float N/A -90 to 90 1
lon lon degrees_east float N/A -180 to 180 1
or_latitude original latitude of the SST value degrees_north short -32768 -9000 to 9000 0.01
or_longitude original longitude of the SST value degrees_east short -32768 -18000 to 18000 0.01
quality_level These are the overall quality indicators and are used for all GHRSST SSTs N/A byte -128 0 to 5 1
satellite_zenith_angle The satellite zenith angle ath the time of the SST observations. angular_degree byte -128 -90 to 90 1
sea_ice_fraction Fractional sea ice cover from OSISAF ice concentration product byte -128 0 to 100 0.01
sea_surface_temperature Temperature of the subskin of the ocean kelvin short -32768 -300 to 4500 0.01
solar_zenith_angle The solar zenith angle at the time of the SST observations. angular_degree byte -128 -90 to 90 1
sources_of_adi This variable provides a pixel by pixel description of where aerosol optical depth were derived from. N/A byte -128 0 to 2 1
sses_bias Bias estimate derived using the techniques describet at http://www.ghrsst.org/SSES-Description-of-schemes.html kelvin byte -128 -127 to 127 0.01
sses_standard_deviation Standard deviation estimate derived using the techniques describet at http://www.ghrsst.org/SSES-Description-of-schemes.html kelvin byte -128 -127 to 127 0.01
sst_dtime time plus sst_dtime gives seconds after 00:00:00 UTC January 1, 1981 seconds int -2147483648 -2147483647 to 2147483647 1
time reference time of sst file seconds since 1981-01-01 00:00:00 int N/A N/A 1
wind_speed These wind speeds were created by the ECMWF and represent winds at 10 metres above the sea surface m s-1 byte -128 0 to 127 1
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