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Fast-ice Distribution in East Antarctica During 1997 and 1999 Determined Using RADARSAT Data

Created 12/03/2025

Updated 12/03/2025

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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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Title Fast-ice Distribution in East Antarctica During 1997 and 1999 Determined Using RADARSAT Data
Language eng
Licence Not Specified
Landing Page https://devweb.dga.links.com.au/data/dataset/460404b9-85a4-4656-8470-f692368a7dad
Contact Point
CSIRO Oceans & Atmosphere
metadata@aad.gov.au
Reference Period 01/11/1997 - 30/11/1999
Geospatial Coverage
Map data © OpenStreetMap contributors
Data Portal Data.gov.au