The Cryosphere
The Cryosphere
TC
Articles | Volume 20, issue 7
Articles | Volume 20, issue 7
https://doi.org/10.5194/tc-20-4117-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-20-4117-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 20, issue 7
Research article
 | 
27 Jul 2026
Research article |  | 27 Jul 2026

Evolution of Maud Rise Polynya during the last 250 years – a multiproxy ice core reconstruction from coastal Dronning Maud Land, Antarctica

Rahul Dey, Chavarukonam M. Laluraj, Kenichi Matsuoka, Ashish Paiguinkar, Bhikaji L. Redkar, and Meloth Thamban

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Short summary
We present a 250-year reconstruction of the Maud Rise Polynya opening, using an ice core collected from coastal Antarctica. This polynya is considered a rare phenomenon in the Weddell Sea, with only two well-documented openings since the 1970s. However, our 250-year record reveals numerous past polynya events, including occurrences possibly comparable in scale to the Great Weddell Polynya of 1974–1976, suggesting that these openings are a part of the Southern Ocean's natural variability.
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