THE CEOS DATABASE : Missions, Instruments and Measurements
CEOS EO HANDBOOK – INSTRUMENT SUMMARY - CHRIS -
Full Name Compact High Resolution Imaging Spectrometer Status Operational
Instrument Agencies ESA, UKSA Maturity
Instrument Type Imaging multi-spectral radiometers (vis/IR) Geometry Push-broom scanning
Instrument Technology High resolution optical imager Sampling Imaging
Data Access Open Access Data Format
Measurements and Applications Supports a range of land, ocean and atmospheric applications, including agricultural science, forestry, environmental science, atmospheric science and oceanography.
Resolution Summary 36 m or 18 m depending on wavebands selected.
[Best Resolution: 18m]
Swath Summary 14 km
[Max Swath: 14 km]
Accuracy Summary S/N 200 @ target albedo of 0.2. 12 bits digitisation.
Waveband Summary VIS - NIR: 400 - 1050 nm (63 spectral bands at a spatial resolution of 36 m; or 18 bands at full spatial resolution (18 m))
VIS (~0.40 µm - ~0.75 µm)
NIR (~0.75 µm - ~1.3 µm)
Instrument Measurements
CategoryParameterAccuracy
AerosolsAerosol Extinction / Backscatter (column/profile) 
Aerosol absorption optical depth (column/profile) 
Albedo and reflectancePhotosynthetically Active Radiation (PAR) 
Fractionally absorbed PAR (FPAR) 
Earth surface albedo 
Atmospheric Temperature FieldsAtmospheric temperature (LT) 
Multi-purpose imagery (land)Land surface imagery 
Ocean colour/biologyOcean chlorophyll concentration 
Ocean suspended sediment concentration 
Color dissolved organic matter (CDOM)0 [m-1]
Radiation budgetShort-wave Earth surface bi-directional reflectance 
VegetationNormalized Differential Vegetation Index (NDVI) 
Leaf Area Index (LAI) 
Vegetation type 
Land cover 
Soil type 
Instrument Missions
PROBA - Project for On-Board Autonomy (2001 - 2016)
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