Massive polynya reopens in Antarctic winter sea ice near Maud Rise
Scientists have documented a large ice-free opening, known as a polynya, forming in the Antarctic sea ice during winter near the Maud Rise region of the Weddell Sea. Such a large-scale winter polynya in this area has not been observed at this scale since the 1970s, according to researchers tracking satellite and ocean data.
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The recurrence of this rare phenomenon could offer researchers fresh data on deep ocean mixing and heat exchange between the Southern Ocean and atmosphere, processes that influence global climate models. Scientists studying the event suggest it may help explain how warming oceans interact with sea ice formation, though the precise causes and broader climate implications remain under investigation.
- A large polynya has reopened in Antarctic winter sea ice near Maud Rise
- The last comparably sized event in this area was recorded in the 1970s
- Researchers see the opening as an opportunity to study ocean-atmosphere heat exchange
Source: nature.com, 2026-10-06
Published there as: “Unprecedented hole opened up in Antarctic winter sea ice”
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