From Australian Oceans Data Network
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Coastal exposure index of sea ice in Antarctica

Created 23/06/2025

Updated 23/06/2025

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This is a simple index which looks at the 360x1-degree longitudinal wedges around the Antarctic continent to see if there is any sea ice (where sea ice concentration is greater than 15%) to the north of the continent in each of these wedges. The index goes from 0 (sea ice to the north off the continent in every longitude wedge) to 360 (no sea ice around the continent at all. Notes about the spreadsheet: "-" means no data. Satellite data was not available for those years. Otherwise the index goes from 0 through to 360. - Zero means that there is no longitude around the continent where there is coastal exposure. - 18 (for example) means that there are 18 longitudinal wedges around the continent with coastal exposure. This project used the following NASA data to develop the coastal exposure index: Cavalieri, D. J., C. L. Parkinson, P. Gloersen, and H. J. Zwally. 1996, updated yearly. Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS Passive Microwave Data, Version 1. [1979-2015]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. doi: http://dx.doi.org/10.5067/8GQ8LZQVL0VL. [2016-05-30]

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Additional Info

Field Value
Title Coastal exposure index of sea ice in Antarctica
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/12c87eef-0d46-4c91-afad-53ca63ab60eb
Contact Point
Australian Ocean Data Network
metadata@aad.gov.au
Reference Period 26/10/1978 - 31/12/2015
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        -180.0,
        -80.0
      ],
      [
        180.0,
        -80.0
      ],
      [
        180.0,
        -60.0
      ],
      [
        -180.0,
        -60.0
      ],
      [
        -180.0,
        -80.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "Coastal exposure index of sea ice in Antarctica". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/coastal-exposure-index-of-sea-ice-in-antarctica