Climate of the Past
Climate of the Past
CP
Articles | Volume 18, issue 1
Articles | Volume 18, issue 1
https://doi.org/10.5194/cp-18-129-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/cp-18-129-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 1
Research article
 | 
24 Jan 2022
Research article |  | 24 Jan 2022

Reconstructing Antarctic winter sea-ice extent during Marine Isotope Stage 5e

Matthew Chadwick, Claire S. Allen, Louise C. Sime, Xavier Crosta, and Claus-Dieter Hillenbrand

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Latest update: 24 Jul 2025
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Short summary
Algae preserved in marine sediments have allowed us to reconstruct how much winter sea ice was present around Antarctica during a past time period (130 000 years ago) when the climate was warmer than today. The patterns of sea-ice increase and decrease vary between different parts of the Southern Ocean. The Pacific sector has a largely stable sea-ice extent, whereas the amount of sea ice in the Atlantic sector is much more variable with bigger decreases and increases than other regions.
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Reconstructing Southern Ocean sea-ice dynamics on glacial-to-historical...