THE CEOS DATABASE : Missions, Instruments and Measurements
CEOS EO HANDBOOK – INSTRUMENT SUMMARY - CERES -
Full Name Cloud and the Earth's Radiant Energy System Status Operational
Instrument Agencies NASA Maturity
Instrument Type Earth radiation budget radiometers Geometry Nadir-viewing
Instrument Technology Broad-band radiometer Sampling Imaging
Data Access Open Access Data Format HDF and NetCDF
Measurements and Applications Long term measurement of the Earth's radiation budget and atmospheric radiation from the top of the atmosphere to the surface; provision of an accurate and self-consistent cloud and radiation database.
Resolution Summary 20 km
Swath Summary
Accuracy Summary 0.5%, 1%, 0.3% (respectively for the 3 channels)
Waveband Summary 3 channels: 0.3-5 µm, 0.3 - 100 µm, 8 - 12 µm
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 budgetDownwelling (Incoming) solar radiation at TOA 
Upwelling (Outgoing) short-wave radiation at TOA 
Upwelling (Outgoing) long-wave radiation at TOA 
Downwelling (Incoming) short-wave radiation at the Earth surface 
Downwelling (Incoming) long-wave radiation at the Earth surface 
Upwelling (Outgoing) long-wave radiation at Earth surface 
Long-wave Earth surface emissivity 
Instrument Missions
TRMM - Tropical Rainfall Measuring Mission (1997 - 2015)
Terra - Terra (formerly EOS AM-1) (1999 - 2017)
Aqua - Aqua (formerly EOS PM-1) (2002 - 2017)
Suomi NPP - Suomi National Polar-orbiting Partnership (2011 - 2020)
NPOESS-1 - National Polar-orbiting Operational Environmental Satellite System - 1 (2013 - 2020)
JPSS-1 - Joint Polar Satellite System - 1 (2017 - 2024)
NPOESS-5 - National Polar-orbiting Operational Environmental Satellite System - 4 (2018 - 2023)
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