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The Cryosphere An interactive open-access journal of the European Geosciences Union
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Volume 11, issue 3
The Cryosphere, 11, 1035-1040, 2017
https://doi.org/10.5194/tc-11-1035-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
The Cryosphere, 11, 1035-1040, 2017
https://doi.org/10.5194/tc-11-1035-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Brief communication 03 May 2017

Brief communication | 03 May 2017

Brief communication: Impacts of ocean-wave-induced breakup of Antarctic sea ice via thermodynamics in a stand-alone version of the CICE sea-ice model

Luke G. Bennetts1, Siobhan O'Farrell2, and Petteri Uotila3 Luke G. Bennetts et al.
  • 1School of Mathematical Sciences, University of Adelaide, Adelaide, SA, Australia
  • 2CSIRO Ocean and Atmosphere, Aspendale, VIC, Australia
  • 3Finnish Meteorological Institute, Helsinki, Finland

Abstract. Impacts of wave-induced breakup of Antarctic sea ice on ice concentration and volume are investigated using a modified version of the CICE sea-ice model, run in stand-alone mode from 1979–2010. Model outputs show that during summer wave-induced breakup reduces local ice concentration by up to 0.3–0.4 in a vicinity of the ice edge and total ice volume by up to a factor of 0.1–0.2.

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A numerical model is used to investigate how Antarctic sea ice concentration and volume are affected by increased melting caused by ocean-wave breakup of the ice. When temperatures are high enough to melt the ice, concentration and volume are reduced for ~ 100 km into the ice-covered ocean. When temperatures are low enough for ice growth, the concentration recovers, but the reduced volume persists.
A numerical model is used to investigate how Antarctic sea ice concentration and volume are...
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