From Australian Oceans Data Network
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Fast-ice Distribution in East Antarctica During 1997 and 1999 Determined Using RADARSAT Data

Created 23/06/2025

Updated 23/06/2025

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An image correlation technique has been applied to RADARSAT ScanSAR images from November in 1997, and November 1999, to create the first detailed maps of fast ice around East Antarctica (75E-170E). This method is based upon searching for, and distinguishing, correlated regions of the ice-covered ocean which remain stationary, in contrast to adjacent moving pack ice. Within the overlapping longitudinal range of ~86E-150.6E, the total fast-ice area is 141,450 km2 in 1997 and 152,216 km2 in 1999. Calibrated radar backscatter data are also used to determine the distribution of two fast-ice classes based on their surface roughness characteristics. The outer boundaries of the determined fast-ice area for November in 1997 and 1999 are contained in the data files for this record. This work has been allocated to ASAC project 3024.

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Additional Info

Field Value
Title Fast-ice Distribution in East Antarctica During 1997 and 1999 Determined Using RADARSAT Data
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/b1b94890-008a-4596-970f-7742c9996f5e
Contact Point
Australian Ocean Data Network
metadata@aad.gov.au
Reference Period 01/11/1997 - 30/11/1999
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        75.0,
        -70.0
      ],
      [
        170.0,
        -70.0
      ],
      [
        170.0,
        -55.0
      ],
      [
        75.0,
        -55.0
      ],
      [
        75.0,
        -70.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "Fast-ice Distribution in East Antarctica During 1997 and 1999 Determined Using RADARSAT Data". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/fast-ice-distribution-in-east-antarctica-during-1997-and-1999-determined-using-radarsat-data