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The sample you pointed out is using the esri WKID 102020 : South Pole Lambert Azimuthal Equal Area (for Antarctic) and WKID 102017 for Arctic.
The underlying arcgis services are: http://www.natice.noaa.gov/ps/PS2/rest/services/ANTARCTIC_BASE_LOWER/MapServer
or http://www.natice.noaa.gov/ps/PS2/rest/services/ARCTIC_WEEKLY/MapServer