THE CEOS DATABASE : Missions, Instruments and Measurements
CEOS EO HANDBOOK – INSTRUMENT SUMMARY - MERSI -
Full Name Medium Resolution Spectral Imager Status No longer operational
Instrument Agencies NRSCC, CAST, NSMC-CMA, CNSA Maturity
Instrument Type Imaging multi-spectral radiometers (vis/IR) Geometry Cross-track scanning
Instrument Technology Multi-purpose imaging Vis/IR radiometer Sampling Imaging
Data Access Open Access Data Format L-1 data: HDF 5.0
Measurements and Applications Measurement of vegetation indexes and ocean colour. No longer operating due to lack of power.
Resolution Summary 250 m for broadband channels, 1 km for narrowband channels
[Best Resolution: 250m]
Swath Summary 2800 km
[Max Swath: 2800 km]
Accuracy Summary 0.25 - 1.0 km
Waveband Summary 25 channels from 0.47 - 12.0 µm
VIS (~0.40 µm - ~0.75 µm)
NIR (~0.75 µm - ~1.3 µm)
Instrument Measurements
CategoryParameterAccuracy
Ocean colour/biologyOcean chlorophyll concentration 
Ocean suspended sediment concentration 
Color dissolved organic matter (CDOM) 
VegetationVegetation type 
Land cover 
Instrument Missions
FY-3A - FY-3A Polar-orbiting Meteorological Satellite (2008 - 2017)
FY-3B - FY-3B Polar-orbiting Meteorological Satellite (2010 - 2017)
FY-3C - FY-3C Polar-orbiting Meteorological Satellite (2013 - 2018)
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