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Seasonal and inter-annual variations in Antarctic sea ice extent as mapped by radar altimetry

Laxon, S; (1990) Seasonal and inter-annual variations in Antarctic sea ice extent as mapped by radar altimetry. Geophysical Research Letters , 17 (10) 1553 - 1556. 10.1029/GL017i010p01553. Green open access

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Abstract

Previous work has shown that interannual variations in total sea ice extent may provide a sensitive indicator of global climate change. Data from passive microwave instruments have allowed mapping of global sea ice extents from 1973–76 and from 1978 up to September 1987, [Gloerson and Campbell, 1988]. In this paper data from another microwave instrument, the Geosat radar altimeter, have been used to map the Antarctic sea ice extent for the period November 1986 to January 1989. Comparison with total Antarctic sea ice extents derived from the Scanning Multichannel Microwave Radiometer (SMMR) show excellent agreement during the freeze up period but show significant differences during the late part of the melt period.

Type: Article
Title: Seasonal and inter-annual variations in Antarctic sea ice extent as mapped by radar altimetry
Open access status: An open access version is available from UCL Discovery
DOI: 10.1029/GL017i010p01553
Publisher version: http://dx.doi.org/10.1029/GL017i010p01553
Language: English
Additional information: Copyright 1990 by the American Geophysical Union
UCL classification: UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Earth Sciences
URI: http://discovery.ucl.ac.uk/id/eprint/154945
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