Meteosat Solar Surface Irradiance

IDENTIFICATION
DescriptionEstimation of the solar irradiance reaching the Earth surface derived from the 0.6 µm visible channel of SEVIRI on board the geostationary satellite Meteosat. Algorithm is a physical parametrization applied separately to every pixel of a satellite image to derive an instantaneous field of the Solar Surface Irradiance. The hourly product is interpolated at rounded UT hours, by a pixel dependant temporal interpolation between two consecutive satellite images. The value in the daily product is the integration of all the hourly values in the UT day. The product is remapped onto a 0.05° regular grid and expressed in W/m2.
Product typeNear real time productThumbnail
StatusOperational
IdentifierOSI-304
AcronymMET SSI
Acronym for EDC (APNM)MET SSI, OSIHSSI
Product navigator referenceEO:EUM:DAT:METEOSAT:OSIDSSI
CHARACTERISTICS
Processing levelL3
Satellite inputMSG/SEVIRI
Other inputNA
Frequency24 per day + 1 per day
Timeliness2 h
Spatial coverageEast Atlantic, West Indian: 60N-60S 60W-60E
Spatial sampling0.05° Lat-Lon
Characteristics & methodsphysical method
ACCURACY REQUIREMENTS
Thresold accuracymonthly relative bias : 20%, monthly relative Std. Deviation : 50%
Target accuracymonthly (TBC) relative bias : 10%, monthly relative Std. Deviation :30%
Optimal accuracymonthly relative bias : 0%, monthly relative Std. Deviation :10%
Verification/validation methodroutine comparison with pyranometer measurements
DATA ACCESS
OSI SAF ProducerMétéo-France
Diffusion mean(s) and format(s)EUMETCast (GRIB2)
Ifremer FTP Server (NetCDF4)
EDC (GRIB2)
Link FTP serverIfremer FTP server
Applications and usersOcean atmosphere studies.
VIEW MORE DOCUMENTATION
Product web pageDescriptionProduct User ManualPUM
Live production statusStatusAlgorithm Theoretical Baseline DocumentATBD
Last products at a glanceQuicklookScientific Validation ReportSVR
Continuous monitoringQuality
HISTORY, COMMENTS
  • NetCDF-4 files are available on Ifremer FTP server in the same directories as the NetCDF-3 ones from 17/07/2017.
  • NetCDF-4 files are available on EUMETCast since 05/10/2017 in parallel of the dissemination in GRIB format.
  • Stop of NetCDF-3 and GRIB formats is planned mid-December 2017
  • Using cloud type from NWC SAF software v2016 since product dated 2017-10-17 09:00 UTC