Sea-Ice Thickness Retrieval Using Integrated Grazing-Angle and Near-Nadir GNSS-R Reflectivity From the Spire Constellation
Accurate estimation of sea-ice thickness (SIT) is essential for understanding polar climate processes and supporting operational monitoring. This study demonstrates, for the first time, the use of grazing-angle global navigation satellite system reflectometry (GNSS-R) reflectivity from the Spire CubeSat Constellation t...