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Effect of wave-induced mixing on Antarctic sea ice in a high-resolution ocean model


Thomas, S and Babanin, AV and Walsh, KJE and Stoney, L and Heil, P, Effect of wave-induced mixing on Antarctic sea ice in a high-resolution ocean model, Ocean Dynamics, 69 pp. 737-746. ISSN 1616-7341 (2019) [Refereed Article]

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Copyright 2019 Springer-Verlag GmbH Germany, part of Springer Nature

DOI: doi:10.1007/s10236-019-01268-0


In this study, we investigate how sea ice extent and thickness are affected by additional turbulent mixing from unbroken surface waves. This ‘surface wave mixing’ (SWM) is parameterized by the inclusion of an extra mixing term in the k-ε turbulence scheme implemented in a global-scale ocean model (MOM5). Relative to simulations without SWM, we observe a reduction of seasonal extremes of sea ice extent in the Antarctic of about 9%. This reduction brings the seasonal amplitude of sea ice extent significantly closer to observations, as well as causing an increase in sea ice thickness of up to 15 cm leading up to and during the Antarctic summer.

Item Details

Item Type:Refereed Article
Keywords:surface wave mixing, Antarctic sea ice
Research Division:Earth Sciences
Research Group:Oceanography
Research Field:Physical oceanography
Objective Division:Environmental Policy, Climate Change and Natural Hazards
Objective Group:Understanding climate change
Objective Field:Effects of climate change on Antarctic and sub-Antarctic environments (excl. social impacts)
UTAS Author:Heil, P (Dr Petra Heil)
ID Code:137630
Year Published:2019
Web of Science® Times Cited:5
Deposited By:CRC-Antarctic Climate & Ecosystems
Deposited On:2020-02-24
Last Modified:2020-06-23

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