THE CEOS DATABASE : Missions, Instruments and Measurements
Full Name Advanced Geosynchronous Radiation Imager
aka AGRI
Status Operational
Instrument Agencies NRSCC, CAST, NSMC-CMA, CNSA Maturity
Instrument Type Imaging multi-spectral radiometers (vis/IR) Geometry
Instrument Technology Multi-purpose imaging Vis/IR radiometer Sampling Imaging
Data Access Open Access Data Format
Measurements and Applications A multiple channel radiation imager, one of the primary instruments aboard FY-4. Technically featured by a precisely designed two-mirror structure, capable of accurate and flexible sensing in two dimensions, and minute-level fast sector scanning. Frequent Earth imaging over 14 bands with off-axis three reflections of the primary optic system. On-board black body available for IR calibrations at very short time intervals.
Resolution Summary 0.5-1 km VIS, 2 km NIR, 4 km TIR
[Best Resolution: 500m]
Swath Summary Full Earth disk
Accuracy Summary 0.5 - 4.0 km
Waveband Summary 12 channels from 0.55 - 13.8 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)
Instrument Measurements
Albedo and reflectanceEarth surface albedo 
Atmospheric WindsWind vector over land surface (horizontal) 
Cloud type, amount and cloud top temperatureCloud imagery 
Cloud cover 
Multi-purpose imagery (land)Land surface imagery 
Multi-purpose imagery (ocean)Ocean imagery and water leaving radiance 
Ocean surface windsWind vector over sea surface (horizontal) 
Surface temperature (land)Land surface temperature 
Surface temperature (ocean)Sea surface temperature 
Instrument Missions
FY-4A - FY-4A Geostationary Meteorological Satellite (2016 - 2023)
FY-4B - FY-4B Geostationary Meteorological Satellite (2019 - 2025)
FY-4C - FY-4C Geostationary Meteorological Satellite (2020 - 2027)
FY-4D - FY-4D Geostationary Meteorological Satellite (2023 - 2030)
FY-4E - FY-4E Geostationary Meteorological Satellite (2027 - 2034)
FY-4F - FY-4F Geostationary Meteorological Satellite (2030 - 2037)
FY-4G - FY-4G Geostationary Meteorological Satellite (2033 - 2040)
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