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Description

The GHRSST L2P MSG04 SST v1.0 dataset is produced by the US National Oceanic and Atmospheric Administration (NOAA) National Environmental Satellite, Data, and Information Service (NESDIS) from the Spinning Enhanced Visible and InfraRed Imager (SEVIRI) onboard the Meteosat-11 (MSG4) satellite. It provides the full disk SEVIRI imagery covering the Atlantic Ocean region from its position at 0.0°E longitude. The L2P SST is produced at approximately 3 km resolution with a 15 minute duty cycle. On Feb. 2, 2018 the Meteosat-11 (MSG4) took over the Meteosat-10 (MSG3) (MSG03-OSPO-L2P-v1.0) and produced the L2P SST data from Sept 10. 2018 to March 24, 2023. In March 2023, Meteosat-10 and Meteosat-11 were swapped roles and orbital positions. The MSG03 has started to produce the L2P SST data again over the Atlantic Ocean region. Be aware that the granules before Dec. 1, 2022 contain some uncorrected metadata errors. <br><br>

The SST measurements from SEVIRI are parameters in study of the weather, atmosphere, climate and ocean environments. Meteosat satellites have been providing crucial data for weather forecasting since 1977. <br><br>

This L2P SST product which includes Single Sensor Error Statistics (i.e., uncertainty statistics) follows the GHRSST Data Processing Specification (GDS) version 2.0 format guidelines. Please refer to the user guide for more information.

Product Summary

Platforms
MSG
Instruments
SEVIRI
Spatial Extent

N: 73 S: -73 E: 81 W: -81

Spatial Resolution
3000 Meters x 3000 Meters
Geographic Region
BALTIC SEA
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2018-09-10 to 2023-03-21
Data Partner
Physical Oceanography Distributed Active Archive Center, Jet Propulsion Laboratory, NASA (NASA/JPL/PODAAC) ,
Office of Satellite and Product Operations, NESDIS, NOAA, U.S. Department of Commerce (DOC/NOAA/NESDIS/OSPO)
Concept ID
C2098740781-POCLOUD
Data State
ACTIVE
Number of Files/Granules
149000
Processing Level
2P
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

NOAA Office Of Satellite And Product Operations (OSPO). (2023). NOAA GHRSST Level 2P Atlantic Ocean Regional Skin Sea Surface Temperature v1.0 from the Spinning Enhanced Visible and InfraRed Imager (SEVIRI) on the Meteosat Second Generation-4 (MSG-4) satellite [Data set]. NASA Physical Oceanography Distributed Active Archive Center. https://doi.org/10.5067/GHMG4-2PO01 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 1
aerosol_dynamic_indicator Estimate of the potential for aerosol contamination count byte -128 -127 to 127 0.01
diurnal_warming Estimate of diurnal warming using Gentemann (2003) diurnal warming parameterization Kelvin byte -128 -127 to 127 0.05
dt_analysis Analysis used is NOAAs Real-time Global SST analysis at high resolution (0.083 degree) kelvin byte -128 -127 to 127 0.1
l2p_flags The flags are important to preperly use the data. N/A short 127 127 to -128 1
lat latitude from McIDAS derived data degrees_north float -3.4028235E+38 -90 to 90 1
lon longitude from McIDAS derived data degrees_east float -3.4028235E+38 -180 to 180 1
probability_of_clear_sky Clear sky probability from Bayesian analysis; non-standard L2P field N/A byte -128 -127 to 127 0.0002
quality_level Proximity code defined as : 0 = unprocessed 1 = Cloudy (Clear sky probability &lt; 0.800) 2 = Bad (0.800 &lt;= Clear sky probability &lt; 0.950) 3 = Suspect (0.950 &lt;= Clear sky probability &lt; 0.990) 4 = Acceptable (0.990 &lt;= Clear sky probability &lt; 0.999) 5 = Excellent (0.999 &lt;= Clear sky probability) N/A byte -128 0 to 5 1
satellite_zenith_angle The satellite zenith angle at the time of the SST observation angular_degree byte -128 -90 to 90 1
sea_ice_fraction Fractional sea ice cover from NCEP GFS estimate fraction byte -128 0 to 1 0.01
sea_surface_temperature Skin temperature of the ocean kelvin short -32768 -5000 to 5000 0.01
solar_zenith_angle The solar zenith angle at the time of the SST observation angular_degree byte -128 0 to -76 1
sses_bias Estimated bias based on NOAA bias scheme (contact Andy.Harris@noaa.gov) kelvin byte -128 -127 to 127 0.02
sses_standard_deviation Estimated standard deviation based on NOAA bias scheme (contact Andy.Harris@noaa.gov) kelvin byte -128 -127 to 127 0.01
sst_dtime time plus sst_dtime gives seconds after 00:00:00 UTC January 1, 1981 second short -32768 -32767 to 32767 1
time time in seconds since 1981-01-01 00:00:00 seconds since 1981-01-01 00:00:00 int N/A N/A 1
wind_speed These wind speeds were created by NCEP and represent windows at 10 metres above the sea surface m s-1 byte -128 -127 to 127 1
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