Extended Data Fig. 5: Comparison of sea ice draft measured by moored Upward Looking Sonar (ULS) and Acoustic Doppler Current Profiler (ADCP) sensors in the Laptev Sea with ice draft estimates by CryoSat-2 in a 150 km radius surrounding each mooring.
From: A year-round satellite sea-ice thickness record from CryoSat-2

CryoSat-2 draft observations in winter (green points) use the LARM sea ice product (Landy, et al., 2020) and in summer (blue points) use the processing algorithm presented here. Locations and information for the ULS and ADCP sensors on Laptev Sea moorings can be found here https://doi.org/10.1594/PANGAEA.899275 and https://doi.org/10.1594/PANGAEA.912927 respectively.