Brief communication: The anomalous winter 2019 sea-ice conditions in McMurdo Sound, Antarctica

Leonard, Greg H., Turner, Kate E., Richter, Maren E. ORCID: https://orcid.org/0000-0002-3658-3880, Whittaker, Maddy S. and Smith, Inga J. (2021) Brief communication: The anomalous winter 2019 sea-ice conditions in McMurdo Sound, Antarctica. The Cryosphere, 15 (10). 4999–5006. ISSN 1994-0440

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Abstract

McMurdo Sound sea ice can generally be partitioned into two regimes: (1) a stable fast-ice cover, forming south of approximately 77.6∘ S around March–April and then breaking out the following January–February, and (2) a more dynamic region north of 77.6∘ S that the McMurdo Sound and Ross Sea polynyas regularly impact. In 2019, a stable fast-ice cover formed unusually late due to repeated break-out events. We analyse the 2019 sea-ice conditions and relate them to a modified storm index (MSI), a proxy for southerly wind events. We find there is a strong correlation between the timing of break-out events and several unusually large MSI events.

Item Type:	Article
Faculty \ School:	Faculty of Science > School of Environmental Sciences
Depositing User:	LivePure Connector
Date Deposited:	01 Oct 2024 08:30
Last Modified:	06 Oct 2024 06:30
URI:	https://ueaeprints.uea.ac.uk/id/eprint/96845
DOI:	10.5194/tc-15-4999-2021

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