Antarctic CCI+ Phase-2 SEC Product Types

The latest surface elevation change (SEC) product types available from phase-2 of the Antarctic CCI+ project are shown below.

• 5-year dH/dt (rate of surface elevation change) from multi-mission cross-calibrated radar altimetry from 1991 onwards, in monthly steps, on a 5km grid.
• Cumulative dH in annual steps from multi-mission cross-calibrated radar altimetry since 1993 on a 5km grid.
• dH/dt (rate of surface elevation change) from the full time period of individual satellite radar altimetry missions (ERS-1, ERS-2, ENVISAT, CryoSat-2, Sentinel-3A, Sentinel-3B) on a 5km grid.
• dH/dt (rate of surface elevation change) from the full period of the laser altimetry mission ICESat-2 on a 5km grid.

Parameters for each product are provided on a 5km south polar stereographic grid (EPSG:3031) in NetCDF4 format.

Input Data Sources

The primary input to the Antarctic CCI SEC processing chains are L2 files. These contain along-track geophysical variables such as elevation and backscatter which have been corrected for instrument, geophysical and atmospheric effects. We use the latest available thematic land ice L2 processing baseline products from each mission as shown below: