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Turney, C, Klekociuk, A, Fogwill, CJ, Zunz, V, Goosse, H, Parkinson, C, Compo, G, Lazzara, M, Keller, L, Allan, R, Palmer, J, Clark, G and Marzinelli, E (2017) Brief communication: Changing mid-twentieth century Antarctic sea ice variability linked to tropical forcing (Discussion Paper). The Cryosphere. ISSN 1994-0416

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Abstract

Satellite observations demonstrate Antarctic sea ice extent increased between late-1978 and 2015, with significant spatial and seasonal variability. Late spring retreat off George V Land is a major component of the observed increase, but the paucity of proxy records makes interpretation of trends (and impacts) challenging. Here Earth-system modelling and reanalysis demonstrate tropical Pacific warming can trigger an atmospheric Rossby wave response during the austral spring, delaying sea-ice retreat off George V Land. Our results provide new insights into the spatial and temporal role low latitudes play in Antarctic sea-ice production, drift and ocean circulation on decadal to centennial timescales.

Item Type: Article
Additional Information: "This discussion paper is a preprint. It is a manuscript under review for the journal The Cryosphere (TC)."
Subjects: G Geography. Anthropology. Recreation > G Geography (General)
Divisions: Faculty of Natural Sciences > School of Geography, Geology and the Environment
Depositing User: Symplectic
Date Deposited: 24 Aug 2017 09:05
Last Modified: 23 Aug 2018 11:51
URI: https://eprints.keele.ac.uk/id/eprint/3933

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