CEOS EO HANDBOOK – INSTRUMENT SUMMARY - ASAR (image mode) -
Full Name Advanced Synthetic Aperture Radar (Image mode) Status No longer operational
Instrument Agencies ESA Maturity
Instrument Type Imaging microwave radars Geometry Cross-track scanning
Instrument Technology Imaging radar (SAR) Sampling Imaging
Data Access Constrained Access Data Format
Measurements and Applications All-weather images of ocean, land and ice for monitoring of land surface processes, sea and polar ice, sea state, and geological and hydrological applications.
Resolution Summary
Swath Summary
Accuracy Summary
Waveband Summary
MW (~0.1 cm - ~100 cm)
C-Band (8 - 4 GHz)
Instrument Measurements
Measurements Overview
CategoryParameter
Landscape topographyLand surface topography
Multi-purpose imagery (land)Land surface imagery
Multi-purpose imagery (ocean)Ocean imagery and water leaving spectral radiance
Ocean surface windsWind speed over sea surface (horizontal)
Wind vector over sea surface (horizontal)
Ocean topography/currentsOcean surface currents (vector)
Bathymetry
Ocean wave height and spectrumSignificant wave height
Sea ice cover, edge and thicknessSea-ice cover
Sea-ice type
Iceberg fractional cover
Iceberg height
Glacier motion
Snow cover, edge and depthSnow cover
Soil moistureSoil moisture at the surface
VegetationVegetation type
Land cover
Thematic Links Global Climate Observing System Essential Climate Variables (GCOS ECVs)
ECVDescriptionProduct(s)ECV Inventory 3.0 Record(s)
Land cover click here click here search ECV Inventory records
Ocean Colour click here click here search ECV Inventory records
Sea Ice click here click here search ECV Inventory records
Sea State click here click here search ECV Inventory records
Snow click here click here search ECV Inventory records
Soil Moisture click here click here search ECV Inventory records
Surface Currents click here click here search ECV Inventory records
Instrument Missions
Envisat - Environmental Satellite (2002 - 2012)