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The future of krill

Experts recommend new management strategies

Antarctic krill, Euphausia superba, caught on Expedition PS 112 (March to May 2018) with Research Icebreaker Polarstern
[15. October 2020] 

So far, the main objective of the krill fishery rules is to protect krill eaters. However, too little attention has been paid to possible risks for the krill stocks themselves. CCAMLR has therefore decided to develop a new krill management system.

MOSAiC Expedition

The grand finale to the expedition of a century

After 389 days, the largest Arctic research expedition of all time comes to a successful end in Bremerhaven

FS Polarstern bei der Ankunft in Bremerhaven.
RV Polarstern arriving in Bremerhaven.
[12. October 2020] 

After more than a year in the Central Arctic, this Monday, 12 October, the research icebreaker Polarstern returned to her homeport in Bremerhaven. Accompanied by a ‘welcome committee’ of ships that came to greet, the ship entered the North Lock with the morning high tide, at ca. 9:00 am.

Climate Change

Enhanced warming subtropical ocean is expanding the tropics

Satellite observational sea surface temperature anomaly during the last five years (2015-2019), reference to the first five years (1982-1986).
[23. September 2020] 

The alarming expansion of the tropics is not caused by processes in the atmosphere, but quite simply by warming subtropical ocean. AWI scientists have found out.

Arctic Ocean

Arctic sea ice shrinks to second-lowest summer extent since the beginning of satellite observation

Remaining ice cover on the Arctic Ocean measures just 3.8 million square kilometres – warm air and warm seawater have produced widespread melting

Polarstern near North Pole
[17. September 2020] 

This summer the sea-ice cover on the Arctic Ocean shrank to the second-smallest extent since the beginning of satellite observation in 1979. By mid-September it covered only 3.8 million square kilometres, 0.5 million km² above the all-time low in 2012. 

International Project ISMIP6

Model comparison: Experts calculate future ice loss and the extent to which Greenland and the Antarctic will contribute to sea-level rise

The major international project ISMIP6 offers new estimates of how much melting ice sheets will contribute to global sea-level rise by 2100

Glacier in East Greenland
[17. September 2020] 

Ice-sheet models are an essential tool in making predictions regarding the future of the Greenland and Antarctic Ice Sheets. Nevertheless, these models still have a number of weaknesses. In an international model comparison, 14 research groups fed their ice-sheet models the same atmospheric and ocean data, and calculated what additional amounts of sea-level rise Greenland and the Antarctic would contribute by the year 2100.