Measurements and Applications
Measures wind speed, significant wave height, sea surface elevation, ice profile, land and ice topography,and sea ice boundaries.
Full Name
Radar Altimeter
Status
No longer operational
Instrument Agencies
Maturity
Instrument Type
Radar altimeters 
Geometry
Nadir-viewing
Instrument Technology
Radar altimeter
Sampling
Imaging
Data Access
Open Access
Data Format
Resolution
Footprint is 16 - 20 km
Accuracy
Wave height: 0.5 m or 10% (whichever is smaller) Sea surface elevation: better than 10 cm
Waveband
Microwave: Ku-band: 13.8 GHz
| MW (~0.1 cm - ~100 cm) |
| Ku-Band (12.5 to 18 GHz) |
ERS-1 - European Remote Sensing satellite - 1 (1991 - 2000) |
| ERS-2 - European Remote Sensing satellite - 2 (1995 - 2011) |