The experimental setup and test site at Store Glacier, Greenland. Researchers conceptualized a battery-powered receiver with an antenna placed on the ice that can measure ice thickness using the sun’s radio waves. Credit: Sean Peters A new method for seeing through ice sheets using radio signals from the sun could […]

The Copernicus Sentinel-6 Poseidon-4 dual-frequency (C- and Ku-band) radar altimeter uses an innovative interleaved mode that has improved performance compared to previous satellite altimeter designs. Credit: ESA/ATG medialab Following liftoff last November and more than six months spent carefully calibrating the most advanced mission dedicated to measuring sea-level rise, Copernicus […]