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Description

A Group for High Resolution Sea Surface Temperature (GHRSST) dataset for the Eastern Atlantic Region from the Spinning Enhanced Visible and InfraRed Imager (SEVIRI) on the Meteosat Second Generation (MSG-3) satellites (launched 5 July 2012).

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 MSG/SEVIRI. SEVIRI level 1.5 data are acquired at Meteo-France/Centre de
Meteorologie Spatiale (CMS) through the EUMETSAT/EUMETCAST system. SST is retrieved
from the SEVIRI infrared channels (10.8 and 12.0 micrometer) using a multispectral algorithm.
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 15 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 60W-60E) SST fields obtained by aggregating all 15
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
MSG
Instruments
SEVIRI
Spatial Extent

N: 60 S: -60 E: 60 W: -60

Spatial Resolution
0.05 Decimal Degrees x 0.05 Decimal Degrees
Geographic Region
BALTIC SEA
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2004-06-01
Data Partner
Physical Oceanography Distributed Active Archive Center, Jet Propulsion Laboratory, NASA (NASA/JPL/PODAAC) ,
Satellite Application Facility on Ocean and Sea ice, European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT/OSISAF)
Concept ID
C2036878243-POCLOUD
Data State
ACTIVE
Number of Files/Granules
187212
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 Atlantic Subskin Sea Surface Temperature from the Spinning Enhanced Visible and Infrared Imager (SEVIRI) on MSG-3 weather satellite (GDS2 version) [Data set]. NASA Physical Oceanography Distributed Active Archive Center. https://doi.org/10.5067/GHSEV-3CO01 Date Accessed: 2025-12-14

Documents

SCIENCE DATA PRODUCT VALIDATION

DATA CITATION GUIDELINES

GENERAL DOCUMENTATION

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
quality_level These are the overall quality indicators and are used for all GHRSST SSTs N/A byte -128 N/A 1
satellite_zenith_angle The satellite zenith angle ath the time of the SST observations. angular_degree byte -128 -90 to 90 1
sea_surface_temperature Temperature of the subskin of the ocean kelvin short -32768 -300 to 4500 0.01
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
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