CRISTAL Processor
CRISTAL Processor

The Copernicus Polar Ice and Snow Topographic high priority candidate mission has completed Phase A/B1 preparatory study by the European Space Agency (ESA).

The mission, originally named PICE (Polar ICE and Snow Topographic Mission) and now Copernicus polaR Ice and Snow Topography ALtimeter (CRISTAL), aims at measuring and monitoring sea-ice thickness and overlying snow depth in Arctic and Southern Ocean, as well as changes in surface elevation in glaciers, ice caps, and the Antarctic and Greenland ice sheets by means of its radar altimeter.

While measurements of sea-ice thickness would support maritime operations in polar oceans and, in the longer term would help in the planning of activities in the polar regions, monitoring changes in ice sheets helps to track the stability of the ice sheets and its impact in sea-level rise.

isardSAT was responsible for the definition, implementation and validation of the L1/L2A Ground Processor Prototype during the phase A/B1 of the mission. The processor includes Fully Focused and Swath processing capabilities in addition to the classical Delay Doppler Processing and Low Resolution methods.


Airbus, isardSAT, ARESYS




algorithm development, altimetry, snow / ice, satellites