THE CEOS DATABASE : Missions, Instruments and Measurements
CEOS EO HANDBOOK – MEASUREMENT INSTRUMENTS
Measurements > Snow and Ice >
Ice sheet topography >
Sea-ice sheet topography


Measurement Definition*: Vertical projection of an area covered by ice sheets in meters.
InstrumentStatus/
Accuracy
Instrument DescriptionMeasurement TechnologyTimeline
ASTER
Advanced Spaceborne Thermal Emission and Reflection Radiometer
Operational
Surface and cloud imaging with high spatial resolution, stereoscopic observation of local topography, cloud heights, volcanic plumes, and generation of local surface digital elevation maps. Surface temperature and emissivity. ASTER SWIR detectors are no longer functioning due to anomalously high SWIR detector temperatures. ASTER SWIR data acquired since April 2008 are not useable, and show saturation of values and severe striping. All attempts to bring the SWIR bands back to life have failed, and no further action is envisioned.n/a
HiRI
High-Resolution Imager
Operational
Cartography, land use, risk, agriculture and forestry, civil planning and mapping, digital terrain models, defence.n/a
PALSAR-2
Phased Array type L-band Synthetic Aperture Radar-2
Operational
Disaster monitoring, land monitoring, agricultural monitoring, natural resource exploration, global forest monitoring, potential use and interferometry.n/a
SAR (RADARSAT-2)
Synthetic Aperture Radar (SAR) C band
Operational
All-weather images of ocean, ice and land surfaces. Used for monitoring of coastal zones, polar ice, sea ice, sea state, geological features, vegetation and land surface processes.n/a
SAR (RCM)
Synthetic Aperture Radar (SAR) C band
Operational
All-weather, C-band data to support ecosystem monitoring, maritime surveillance and disaster management.n/a
SAR (RISAT)
Synthetic Aperature Radiometer (RISAT)
Operational
Radar backscatter measurements of land, water and ocean surfaces for applications in soil moisture, crop applications (under cloud cover), terrain mapping, etc.n/a
SAR-L
L-Band Synthetic Aperture Radar
Operational
Land, ocean, emergencies, soil moisture, interferometry, others.n/a
SIRAL
SAR Interferometer Radar Altimeter
Operational
Marine ice and terrestrial ice sheet thickness measurement.n/a
SRAL
SAR Radar Altimeter
Operational
Marine and land services.n/a
PALSAR-3
Phased Array type L-band Synthetic Aperture Radar-3
Being developed
Disaster monitoring, land monitoring, agricultural monitoring, natural resource exploration, global forest monitoring, potential use and interferometry.n/a
WSAR
WSAR
Proposed
High resolution radar measurements of land and ocean features.n/a
* Description adapted from WMO.
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