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Information About the DataYou are free to use the output of these tools for research purposes, but we request that you include the following acknowledgement in any publications:
"The [ice edge | concentration | polynya] data were provided by the Australian Antarctic Data Centre (http://data.aad.gov.au/), based on satellite-derived ice concentrations (Comiso, 1999 updated 2003)."
The sea ice data used here have been provided by the National Snow and Ice Data Center. The NSIDC requests that any use of these data in publications should be acknowledged with the following citation:
Comiso, J. 1999, updated 2003. Bootstrap sea ice concentrations for NIMBUS-7 SMMR and DMSP SSM/I, 1979 to 2003. Boulder, CO, USA: National Snow and Ice Data Center. Digital media.
Note: The edge of the ice pack at a given longitude is calculated here as the northernmost point at which there is at least 15% ice concentration in the satellite data. Note that satellite-derived estimates of ice cover can be inaccurate, and the edge derived from satellite data can in some cases be substantially different to that recorded by ship-based observers. For more information about the sea ice data see the sea ice data home page. Worby and Comiso (2004) provide a discussion of the problems of extracting the ice edge from satellite data.
Worby, A.P. and Comiso, J.C. (2004) Studies of the Antarctic sea ice edge and ice extent from satellite and ship observations. Remote Sensing of Environment 92:98-111
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