Marius Årthun

Postdoctoral Research Fellow in physical oceanography (297421) | University of Bergen Job title: Postdoctoral Research Fellow in physical oceanography (297421), Employer: University of Bergen, Deadline: Friday, April 17, 2026

Bergen calling! Postdoc position at @unibergen.bsky.social and @bjerknes.uib.no focused on the Arctic Ocean and its impacts on the Atlantic overturning circulation (AMOC). The position is part of the national Arctic Ocean 2050 program.

www.jobbnorge.no/en/available...

🧪🌊 Become a researcher within physical ocenography in the Arctic Ocean & the North Atlantic!
In our series with available positions, next one out is this one connected to the national research program @arcticocean2050.bsky.social
Supervisor: @mariusarthun.bsky.social
Come join us in Bergen!

The Arctic overturning circulation: transformations, pathways and timescales Abstract. The Arctic is the northernmost terminus of the Atlantic Meridional Overturning Circulation and is an important source of the densest waters feeding its lower limb. However, relatively little...

🌊Where and how is dense water in the Arctic formed? In our new paper, we decompose the Arctic overturning circulation (ArMOC), the northernmost part of the AMOC. Check it out 🔽

@bjerknes.uib.no @mariusarthun.bsky.social @kristoferdoos.bsky.social @nansensenteret.bsky.social @noc.ac.uk

PhD Research Fellow in physical oceanography (295159) | University of Bergen Job title: PhD Research Fellow in physical oceanography (295159), Employer: University of Bergen, Deadline: Monday, March 16, 2026

Come join us! PhD position at @unibergen.bsky.social and @bjerknes.uib.no on freshwater transport from the Arctic Ocean and its impacts on the Nordic Seas and subpolar overturning circulation. The position is part of the national Arctic Ocean 2050 program.

www.jobbnorge.no/en/available...

A Highway of Heat to the Arctic: Why a Vital Ocean Current Is Losing Its Chill This blog post and the “Deep Dive” podcast, created by NotebookLM, are based on “Reduced cooling in the Norwegian Atlantic Slope Current: investigating mechanisms of change from 30 years of observa…

Thirty years of in situ observations indicate that a vital ocean current is losing its chill, transporting warmer water to the Arctic. 🌊🧪 ocean2climate.org/2026/01/05/a...

Ice-free conditions continue in the Barents Sea region of the #Arctic Ocean. This is one area that has observed some of the largest losses of ice over the last few decades... compare the older years (dark/purple lines) to today!

Map of this region: zacklabe.files.wordpress.com/2022/08/b203...

How will a sudden change in the function of the ocean circulations impact Iceland, Europe, and the world?

We had a great panel at the Arctic Circle Assembly 🌊🧪

It was a scientific discussion on the likelihood, uncertainties, and possible consequences if the large ocean circulation were to shift.

Ocean anomalies traveling North crucial for the Atlantic Meridional Overturning Circulation - Stockholm University Anomalies in temperature and salinity that originate in the midlatitude North Atlantic can affect the Atlantic Meridional Overturning Circulation (AMOC) in the Nordic Seas up to a decade later. The st...

Newly published study led by @leonchafik.bsky.social finds that anomalies in temperature and salinity that originate in the midlatitude North Atlantic can affect the #AMOC in the Nordic Seas up to a decade later.❗️ 🌊

Read the full press release below.
@stockholm-uni.bsky.social

Nice paper led by @leonchafik.bsky.social on the North Atlantic-Nordic Seas overturning circulation.

Loss of sea ice stabilizes Atlantic circulation The risk of a slowdown of the overturning circulation in the North Atlantic Ocean is lower than previously thought. New research suggests increased deep…

Popular science summary: bjerknes.uib.no/en/news/tap-...

Atlantification drives recent strengthening of the Arctic overturning circulation A less ice-covered Arctic shifts dense water formation northward, strengthening the Arctic Ocean overturning circulation.

The Arctic Ocean acts to stabilize the AMOC

New paper in #ScienceAdvances by researchers from @bjerknes.uib.no and @oxuniearthsci.bsky.social showing how ongoing Atlantification and sea ice loss leads to a strengthening of the Arctic overturning circulation.

www.science.org/doi/10.1126/...

Very cool article about Kjetil Våge’s ROVER project and how the Nordic Seas could help to decide the fate of the AMOC.

@bjerknes.uib.no

New Book:
The Barents Sea system
Gateway to the changing Arctic

Happy to contribute to some sections of this exciting book!

fagbokforlaget.no/produkt/9788...

Er Golfstrømmen på vei til å gå amok? Vi tar pulsen på havstrømmene våre neste uke (torsdag) på klimafestivalen Varmere Våtere Villere. Kan de stoppe opp?

@bjerknes.bsky.social

www.varmerevaterevillere.no/programovers...

New study: The northern Barents Sea could be seven degrees warmer in 2050 The Barents Sea is heading toward an ice-free future, researchers report.

Popular science summary:
www.sciencenorway.no/arctic-clima...

New paper: The future Barents Sea-A synthesis of physical, biogeochemical, and ecological changes toward 2050 and 2100

Very nice interdisiplinary Nansen Legacy effort, including @jakobdoerr.bsky.social @islarsh.bsky.social @khuongdinh.bsky.social

doi.org/10.1525/elem...

Help Denmark Buy California – Because Why Not? Buy it from Trump, the bigliest crowdsourcing ever

Brilliant! Help Denmark buy California! Because why not...? denmarkification.com

Deadline day tomorrow! Solicited talk by @rahmstorf.bsky.social about future AMOC weakening.

Buoys on Expedition in the Arctic Ocean Two instrument-laden buoys ("Knoll" and "Tott") were recently released north of Svalbard, soon to disappear beneath the ice.

In our project "Overturning circulation in the new Arctic" (ArMOC) we have deployed two Argo floats in the Arctic (north of Svalbard). A short story on the mission of Knoll & Tott here:

bjerknes.uib.no/en/article/n...

With Stefanie Semper, Birgit Rinde and @jakobdoerr.bsky.social

And for those interested in future ocean circulation changes. Join us at #EGU25 to find out more.

meetingorganizer.copernicus.org/EGU25/sessio...

Could the AMOC collapse and Bergen become 20 degrees colder (imagine the snow we would get!)? This and more in the latest Bjerknes podcast.

The Barents Sea is a hotspot for ongoing Arctic climate change and could be 7C warmer by 2100. Check out our amazing fact sheets from the Nansen Legacy project! arvenetternansen.com/fact-sheets-...

A good opportunity for a first post. Come work with us!