Record low Antarctic sea ice cover in February 2022

Turner, John ORCID: https://orcid.org/0000-0002-6111-5122; Holmes, Caroline ORCID: https://orcid.org/0000-0002-3134-555X; Caton Harrison, Thomas ORCID: https://orcid.org/0000-0001-7870-7039; Phillips, Tony ORCID: https://orcid.org/0000-0002-3058-9157; Jena, Babula; Reeves-Francois, Tylei; Fogt, Ryan; Thomas, Elizabeth R. ORCID: https://orcid.org/0000-0002-3010-6493; Bajish, C.C.. 2022 Record low Antarctic sea ice cover in February 2022. Geophysical Research Letters, 49 (12), e2022GL098904. 11, pp. https://doi.org/10.1029/2022GL098904

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Abstract/Summary

On 25 February 2022 Antarctic sea ice extent (SIE) dropped to a satellite-era record low level of 1.92 × 106 km2, 0.92 × 106 km2 below the long-term mean. The area of sea ice was also at a record low level of 1.24 × 106 km2. Although no individual sector was at a record low, at the minimum there were negative sea ice anomalies in all sectors of the Southern Ocean, with the largest in the Ross (contributing 46%) and Weddell Seas (26%). The Amundsen Sea Low had a record low depth in October/November 2021, with a series of very deep depressions giving strong offshore winds. These accelerated ice loss during the melt season, creating a 1.00 × 106 km2 coastal polynya in the Ross Sea. In the northern Weddell Sea, westerly winds of record strength led to ice export from the region.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	https://doi.org/10.1029/2022GL098904
ISSN:	0094-8276
Additional Keywords:	sea ice, extremes, storms, wind, Ross Sea, Weddell Sea
Date made live:	07 Jun 2022 09:13 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/532694

Item Type:

Publication - Article

Digital Object Identifier (DOI):

https://doi.org/10.1029/2022GL098904

ISSN:

0094-8276

Additional Keywords:

sea ice, extremes, storms, wind, Ross Sea, Weddell Sea

Date made live:

07 Jun 2022 09:13 +0 (UTC)

URI:

https://nora.nerc.ac.uk/id/eprint/532694