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Permafrost

Watching the Arctic Thaw in Fast-forward

The frozen permafrost in the Arctic is thawing on an alarming scale

Sentinel-2 Falschfarbenbilddarstellung des Untersuchungsgebietes mit den Seward und Baldwin Halbinseln in Nordwestalaska. Aufnahmedatum: 3. Juli 2018.
[01. December 2020] 

In the season 2017/2018, lake drainage was observed on a scale that model outputs didn’t expect until the end of the century.


Aquaculture Research

Fighting the Salmon Louse

A new procedure for effectively and gently eliminating dangerous parasites

Bild eines Lachses
[13. November 2020] 

It’s a nightmare for fish breeders, causes damage amounting to millions, and is also a growing problem for wild salmon: the salmon louse is high on the list of notorious fish parasites.


Climate History

Irregular Appearances of Glacial and Interglacial Climate States

A clearer picture of the sequence of glacial and interglacial periods

Luftaufnahme des Beyond EPICA Camps
[26. October 2020] 

AWI-physicist Peter Koehler, together with colleagues at Utrecht University, has now made a significant contribution towards providing a clearer picture of the sequence of glacial and interglacial periods over the last 2.6 million years.


Antartic

Depths of the Weddell Sea are warming five times faster than elsewhere

The warming of the polar depths is chiefly due to changed winds and currents above and in the Southern Ocean.

Südpolarmeer.
[19. October 2020] 

AWI long-term time series shows: due to changed winds and currents in the Southern Ocean, more heat is transported from the Antarctic Circumpolar Current to the depths of the Weddell Sea.


Antarctica

The future of krill

Experts recommend new management strategies

Antarktische Krill, Euphausia superba, gefangen auf der Expedition PS 112 (März – May 2018) mit dem Forschungseisbrecher 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.


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