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“Sea-ice biology”: new section offered at

31 March 2022
The sea ice of the Arctic and Antarctic is a unique habitat for a host of organisms, which can be found on its surface, in the brine channels that permeate it, or on its underside, in the boundary layer between the ice and water. The plants and animals that live here have to be specially adapted to the harsh climate.
The denizens of the Arctic and Antarctic include broad variety of tiny organisms like bacteria or microalgae up to penguins and polar bears. Some live on the ice, others at the edge of sea-ice-covered areas, and some below the ice. In addition, the sea ice offers an important habitat for countless marine bird species. By expanding the available information products on “sea-ice knowledge” at, we can finally respond to a request that has long-since and repeatedly been expressed to the team: to complement information on the physical world and climatic aspects of sea ice with the important field of sea-ice biology. After all, both fields are vital to addressing questions on climate change in this unique and highly specialised ecosystem. Read more here …


Record Low Antarctic Sea-ice Extent Reached in February 2022

8 March 2022
Satellite readings taken on 21 February 2022 showed, at 2.27 million km2, the absolute record low Antarctic sea-ice extent since the beginning of continuous satellite monitoring in 1979. This was a few thousand km2 below the previous record low from 1997. The mean sea-ice extent for February, at 2.4 million km², was another historical low. This minimum is the result of very low ice cover in all sub-regions of the Antarctic, particularly in the Weddell and Ross Seas. What do these observations tell us about the general climatological trend? Read more here...


Linking scientific results: Arctic atmosphere, ice and ocean results from MOSAiC published

17 February 2022
Part 3: Atmospheric parameters and processes observed during MOSAiC

The MOSAiC ATMO (Atmosphere)-Team made observations of relevant atmospheric properties, processes and interactions over an entire annual cycle while drifting across the Central Arctic with the sea ice from October 2019 to September 2020. A broad and diverse international team of scientists designed and implemented a comprehensive programme for observing and characterising all aspects of the Arctic atmospheric system in unprecedented detail. Ralf Jaiser from the AWI Potsdam comments on the importance of MOSAiC-related research, which extends beyond the Arctic itself: “The Arctic is embedded in the global climate system. A better understanding of Arctic processes improves our ability to make forecasts and projections of the climate system globally.” Read more here…

DriftStories from the MOSAiC expedition through the Central Arctic

You can read the online version of the introduction here.
In addition, you can download the complete booklet as a PDF here or request a printed copy free of charge by mailing us at

Real time course plot R.V. Polarstern
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