THE CEOS DATABASE : Missions, Instruments and Measurements
CEOS EO HANDBOOK – INSTRUMENT SUMMARY - ALI -
Full Name Advanced Land Imager Status Operational
Instrument Agencies NASA Maturity
Instrument Type High resolution optical imagers Geometry Push-broom scanning
Instrument Technology High resolution optical imager Sampling Imaging
Data Access Open Access Data Format HDF or GeoTIFF
Measurements and Applications Measurement of Earth surface reflectance. Will validate new technologies contributing to cost reduction and increased capabilities for future missions. ALI comprises a wide field telescope and multispectral and panchromatic instrument.
Resolution Summary PAN: 10 m, VNIR and SWIR: 30 m
[Best Resolution: 10m]
Swath Summary 185 km
[Max Swath: 185 km]
Accuracy Summary SNR @ 5% surf refl Pan:220, Multi 1: 215, Multi 2: 280, Multi 3: 290, Multi 4:240, Multi 4':190, Multi 5':130, Multi 5:175, Multi 7:170 (prototype instrument exceeds ETM+ SNR by a factor of 4 - 8)
Waveband Summary 10 bands: VIS and NIR: 0.480 - 0.690 µm, 0.433 - 0.453 µm, 0.450 - 0.515 µm, 0.525 - 0.605 µm, 0.630 - 0.690 µm, 0.775 - 0.805 µm, 0.845 - 0.890 µm, 1.200 - 1.300 µm, SWIR: 1.550 - 1.750 µm, 2.080 - 2.350 µm
VIS (~0.40 µm - ~0.75 µm)
NIR (~0.75 µm - ~1.3 µm)
SWIR (~1.3 µm - ~3.0 µm)
Instrument Measurements
CategoryParameterAccuracy
Albedo and reflectanceFractionally absorbed PAR (FPAR) 
Earth surface albedo 
Multi-purpose imagery (land)Land surface imagery 
Radiation budgetShort-wave Earth surface bi-directional reflectance 
Sea ice cover, edge and thicknessSea-ice cover 
Glacier cover 
Sea-ice thickness 
Snow cover, edge and depthSnow cover 
Surface temperature (land)Land surface temperature 
Surface temperature (ocean)Sea surface temperature 
VegetationVegetation type 
Land cover 
Soil type 
Vegetation Cover 
Instrument Missions
NMP EO-1 - New Millenium Program Earth Observing-1 (2000 - 2017)
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