THE CEOS DATABASE : Missions, Instruments and Measurements
CEOS EO HANDBOOK – INSTRUMENT SUMMARY - GERB -
Full Name Geostationary Earth Radiation Budget Status Operational
Instrument Agencies EUMETSAT, ESA, RAL Maturity
Instrument Type Earth radiation budget radiometers Geometry Earth disk scanning
Instrument Technology Broad-band radiometer Sampling Imaging
Data Access Open Access Data Format native, HDF
Measurements and Applications Measures long and short wave radiation emitted and reflected from the Earth's surface, clouds and top of atmosphere. Full Earth disk, all channels in 5 minutes.
Resolution Summary 44.6 x 39.3 km
Swath Summary Single column moved alternately W-E and E-W to cover the complete earth disc
Accuracy Summary SW=1.2 Wm-2, LW=7.5 Wm-2
Waveband Summary SW: 0.32 - 4.0 µm, LW 4.0 - 30 µm (by subtraction)
UV (~0.01 µm - ~0.40 µm)
VIS (~0.40 µm - ~0.75 µm)
NIR (~0.75 µm - ~1.3 µm)
SWIR (~1.3 µm - ~3.0 µm)
MWIR (~3.0 µm - ~6.0 µm)
TIR (~6.0 µm - ~15.0 µm)
FIR (~15.0 µm - ~0.1 cm)
Instrument Measurements
CategoryParameterAccuracy
Radiation budgetUpwelling (Outgoing) short-wave radiation at TOA 
Upwelling (Outgoing) long-wave radiation at TOA 
Instrument Missions
Meteosat-8 - Meteosat Second Generation-1 (2002 - 2019)
Meteosat-9 - Meteosat Second Generation-2 (2005 - 2021)
Meteosat-10 - Meteosat Second Generation-3 (2012 - 2022)
Meteosat-11 - Meteosat Second Generation-4 (2015 - 2025)
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