The algorithm of the gridded SMOS sea ice thickness data (Level-3) has been updated. The previous version v3.2 is now replaced by v3.3. SMOS L3 is distributed directly and input to the CryoSat-2/SMOS L4 sea ice thickness data set.
A full documation of SMOS level 3 product version v3.3 can be found in the SMOS Sea Ice Thickness section.