Minimize SIRAL
Instrument image

Unlike conventional radar altimeters, where the interval between pulses is about 500 ¼s, the CryoSat-2 altimeter will send a burst of pulses with an interval of only 50 ¼s between them. The returning echoes will be correlated, and by treating the whole burst at once, the data processor can separate the echo into strips arranged across the track by exploiting the slight frequency shifts (caused by the Doppler effect) in the forward- and aft-looking parts of the beam.

SAR/Interferometric Radar Altimeter
Technical Characteristics
Arctic sea ice: 1.6 cm/year
Spatial Resolution:
Along-track resolution: 250 m (SAR/SARIn)
Swath Width:
350 MHz
Earth Topics
Snow and Ice ( Sea Ice , Snow and Ice )
Related Instruments
RA2, RA  
Available Resources Type Access
CRYOSAT Ground Segment Instrument Processing Facility L2 - L2Products Format Specification [L2-FMT] Technical Document download
CryoSat Mission and Data Description Special Publication download