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Antarctic CRC and Australian Antarctic Division Climate Data Set - Northern extent of Antarctic sea ice

Created 23/06/2025

Updated 23/06/2025

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This dataset contains the digitisation of one U.S. Navy/NOAA Joint Ice Facility sea ice extent and concentration map monthly to give the latitude and longitude of the northern extent of the Antarctic sea ice. Maps were produced weekly, but have been digitised monthly, since distribution began in January 1973 (except August 1985), until December 1996. Maps were digitised at each 10 degrees of longitude, and the longitude, distance from the south pole to the northern edge of the sea ice at that longitude, and latitude of that edge is given, as well as the mean distance and latitude for that map. Summary tabulations (sea ice northern extent latitudes at each 10 degree of longitude each year, grouped by month) and mean monthly sea ice extent statistics are also available.

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Additional Info

Field Value
Title Antarctic CRC and Australian Antarctic Division Climate Data Set - Northern extent of Antarctic sea ice
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/a1567df2-e768-4e91-b04b-8e34c7e81609
Contact Point
Australian Ocean Data Network
metadata@aad.gov.au
Reference Period 18/01/1973 - 19/12/1996
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        -180.0,
        -80.0
      ],
      [
        180.0,
        -80.0
      ],
      [
        180.0,
        -50.0
      ],
      [
        -180.0,
        -50.0
      ],
      [
        -180.0,
        -80.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "Antarctic CRC and Australian Antarctic Division Climate Data Set - Northern extent of Antarctic sea ice". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/antarctic-crc-and-australian-antarctic-division-climate-data-set-northern-extent-of-antarctic-s