THE CEOS DATABASE : Missions, Instruments and Measurements
CEOS EO HANDBOOK – INSTRUMENT SUMMARY - AMI/SAR/Image -
Full Name Active Microwave Instrumentation. Image Mode Status No longer operational
Instrument Agencies ESA Maturity
Instrument Type Imaging microwave radars Geometry Side-looking
Instrument Technology Imaging radar (SAR) Sampling Imaging
Data Access Constrained Access Data Format
Measurements and Applications All-weather images of ocean, ice and land surfaces. Monitoring of coastal zones, polar ice, sea state, geological features, vegetation (including forests), land surface processes, hydrology.
Resolution Summary 30 m
[Best Resolution: 30m]
Swath Summary 100 km
[Max Swath: 100 km]
Accuracy Summary Landscape topography: 3 m, Bathymetry: 0.3 m, Sea ice type: 3 classes
Waveband Summary Microwave: 5.3 GHz, C band, VV polarisation, bandwidth 15.5 ± 0.06 MHz
MW (~1.0 cm - ~100 cm)
C-Band (8 - 4 GHz)
Instrument Measurements
CategoryParameterAccuracy
Ice sheet topographySea-ice sheet topography 
Landscape topographyLand surface topography 
Multi-purpose imagery (land)Land surface imagery 
Multi-purpose imagery (ocean)Ocean imagery and water leaving radiance 
Ocean topography/currentsBathymetry 
Ocean wave height and spectrumSignificant wave height 
Sea ice cover, edge and thicknessSea-ice cover 
Sea-ice type 
Glacier motion 
Snow cover, edge and depthSnow cover 
Soil moistureSoil moisture at the surface 
VegetationVegetation type 
Instrument Missions
ERS-1 - European Remote Sensing satellite - 1 (1991 - 2000)
ERS-2 - European Remote Sensing satellite - 2 (1995 - 2011)
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