I was looking for an equal area projection of Antarctica, but it seems that the Lambert Azimuthal Equal Area (https://epsg.io/3974 , also called 102020 by ESRI) is deprecated because it is not a "true" equal area projection.

Is there any "equal area" projection that I could use as a standard for the South Pole ? If not, what are the possible workarounds ?


Following the chain of references in Lambert Azimuthal Equal Area EPSG:3974 leads via NSIDC EASE-Grid South to WGS 84 / NSIDC EASE-Grid 2.0 South that looks promising.

This points to Brodzik, M. J., B. Billingsley, T. Haran, B. Raup, M. H. Savoie. 2014. EASE-Grid 2.0: Incremental but Significant Improvements for Earth-Gridded Data Sets. ISPRS International Journal of Geo-Information 2012, 1, 32-45 & correction in 2014, 3, 1154-1156.

  • Thanks @Ian Turton Do you know more about this projection ? If I just look at the wkt, th only difference is TOWGS84[0,0,0,0,0,0,0], which should not change anything if I understand well. Would gdal know that it has to take a gridding into account based on the EPSG code ?
    – radouxju
    Nov 21 '18 at 7:57
  • I'm afraid I know nothing about it more than I found on epsg.io - I tend not to map the polar regions
    – Ian Turton
    Nov 21 '18 at 8:46

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