Production of the near real-time AWI CryoSat-2 sea ice thickness product will start shortly.
Preliminary list of updates compared in v2.5:
- New surface type classification (sea ice / lead / open ocean discrimination). The new surface type classification increases the number of waveforms for sea ice freeboard/thickness evaluation.
- New flag indicating surface wave influence in the marginal ice zone. Surface waves that penetrate into the sea ice lead to a roughening of the surface and a freeboard bias. This bias is now detected based on waveform properties and the distance to open water from sea ice concentration data.
- Update region code to 2021 NSIDC regional mask for Arctic sea ice trends and climatologies (credit J. Scott Stewart and Walter N. Meier, NSIDC)
- Open Ocean data from CryoSat-2 pulse-limited radar mode (LRM) is included, but not yet used for estimation of sea surface height
- Fixed issue with connecting data from the same orbit that was distributed over different files. The issue has caused data loss and degraded sea surface height information (see https://github.com/pysiral/pysiral/issues/91)
- Fixed issue with computing pulse peakiness for noisy waveforms. This issue has caused incorrect surface type classifications (https://github.com/pysiral/pysiral/issues/89)