CEOS Instrument: Radar Altimeter




Instrument:RA
Agency: ESA
Missions: ERS-1
 ERS-2
Status:No longer operational
Type:Radar altimeter
Description:Measures wind speed, significant wave height, sea surface elevation, ice profile, land and ice topography,and sea ice boundaries
Spatial Resolution: Footprint is 16 - 20 km
Swath Width: N/A
Wavebands: Microwave: Ku-band: 13.8 GHz
Technology: Radar altimeter
Description: Nadir-viewing radar for very accurate ranging measurement between satellite and surface. The spread of echoes provides information on significant wave height, the intensity on the wind speed, the multi-temporal analysis the ocean dynamic topography and the geoid. The instantaneous field of view is ~ 25 km and moves along track. The radar altimeter operates in Ku-band (~ 13 GHz) with the support of C-band (~ 5 GHz) for correction from ionospheric rotation; and is associated to a nadir-pointing MW radiometer for water vapour correction. Applicable only in LEO.

Measurement List:

(select measurement name to view details)



CEOS Systems Engineering Office (SEO)

CEOS Data Base Version: 17 - Created: 2012-01-18