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
Measurements Overview
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 spectral radiance
Ocean surface windsWind vector over sea surface (horizontal)
Surface temperature (land)Land surface temperature
Surface temperature (ocean)Sea surface temperature
Thematic Links Global Climate Observing System Essential Climate Variables (GCOS ECVs)
ECVDescriptionProduct(s)ECV Inventory 3.0 Record(s)
Albedo click here click here search ECV Inventory records
Cloud Properties click here click here search ECV Inventory records
Land Surface Temperature click here click here search ECV Inventory records
Ocean Colour click here click here search ECV Inventory records
Sea Surface Temperature click here click here search ECV Inventory records
Instrument Missions
FY-4A - FY-4A Geostationary Meteorological Satellite (2016 - 2023)
FY-4B - FY-4B Geostationary Meteorological Satellite (2021 - 2028)
FY-4C - FY-4C Geostationary Meteorological Satellite (2025 - 2032)
FY-4D - FY-4D Geostationary Meteorological Satellite (2026 - 2033)
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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