Antarctic Sea Ice Thickness Products

CPOM Antarctic netcdf products contain mean sea-ice thickness and associated parameters derived from CryoSat-2 since 2010, sparsely gridded on a polar-stereographic projection (EPSG:3031, NSIDC Sea Ice Polar Stereographic South) at 5 km resolution such that only grid points containing valid thickness measurements are included. They are available as:

• 2-day, 14-day and 28-day Near Real-Time (NRT) netcdf gridded products at a 1-day latency.
• Monthly final quality NTC (Non-Time-Critical) netcdf gridded products at a 40-day latency.
• Monthly thickness, volume and mass timeseries data as CSV files at a 40-day latency.

Near Real-Time NetCDF sea ice thickness products are available with a latency of less than 1-day following satellite acquisition. The products are updated daily by 09:00 GMT, containing measurements up until the end of the previous day. NRT products are derived from an initial orbit solution and available auxilliary correction data, and are not at the final quality available in the NTC products.

The first link contains the latest 2, 14 and 28 day NRT products in a single fixed name gzipped tar file archive for ease of automated download.

Antarctic Non-Time-Critical (NTC) Monthly Sea Ice Thickness Products

These NTC products contain final quality consolidated mean monthly Antarctic sea-ice thickness, radar freeboard and associated sea ice parameters. The files below are packaged as `.tar.gz` archives containing the available individual monthly `.nc` files for the specified year. Monthly files are generated at a latency of approximately 2 months following satellite acquisition to allow for the inclusion of the final quality L1b data from ESA and associated auxiliary data in the sea ice processing chain.

Antarctic Timeseries Archives

Direct download for the packaged `.tar.gz` archive containing all CSV timeseries data files (Thickness, Volume, Mass) for the Antarctic and its sub-basins.