arctic snow, freeboard retrieval, CryoSat‐2, radar altimetry, sea ice, Snow, Surfaces, Altimeters, Airborne sensing, Case studies, Ice thickness, Airborne radar, Airborne lasers, Lasers, Polar environments, Radar, Mathematical models, Freeboard, Interferometry, Radar altimeters, Snowpack, Regional analysis, Ice, Ice properties, Ice cover, Altimetry, Equation...
arctic, Biological activity, climate, Ice, Ice cover, Ice thickness, Indicators, knowledge gaps, observation gaps, Observation methods, Polar environments, Remote sensing, Remote sensors, Remotely operated vehicles, Sea ice, Thickness