Climate of the Past
Climate of the Past
CP
Articles | Volume 17, issue 1
Articles | Volume 17, issue 1
https://doi.org/10.5194/cp-17-111-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/cp-17-111-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 17, issue 1
Research article
 | 
12 Jan 2021
Research article |  | 12 Jan 2021

Can we reconstruct the formation of large open-ocean polynyas in the Southern Ocean using ice core records?

Hugues Goosse, Quentin Dalaiden, Marie G. P. Cavitte, and Liping Zhang

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Latest update: 24 Jul 2025
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Short summary
Polynyas are ice-free oceanic areas within the sea ice pack. Small polynyas are regularly observed in the Southern Ocean, but large open-ocean polynyas have been rare over the past decades. Using records from available ice cores in Antarctica, we reconstruct past polynya activity and confirm that those events have also been rare over the past centuries, but the information provided by existing data is not sufficient to precisely characterize the timing of past polynya opening.
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