The Australian Antarctic Data Centre produces various datasets derived from satellite-based estimates of sea ice concentration. These datasets are updated periodically, or by request.
Sea ice extent
Sea ice extent (maximum latitude of sea ice):
- daily, 1978—2009, from SMMR-SSM/I satellite data (1 degree longitude resolution): metadata and data (csv file)
- seasonal (i.e. maximum winter extent), 1979/80—2007/08 seasons: metadata and data (csv file)
Climatological and other data
The AADC maintains a collection of general-use environmental data layers, covering physical and biological aspects of the Southern Ocean around Antarctica. Matched layers are also provided for the Arctic. Typical uses for these data might include general modelling, regionalisation, and exploratory analyses.
These data layers (netCDF and ESRI ascii grid formats) can be accessed via anoymous ftp from ftp://ftp.aad.gov.au/aadc/derived/ or from http://share.biodiversity.aq/GIS/Antarctic/.
Metadata on these layers can be found here. The netCDF files also include details about the source data.
