Bjerknes Center for Climate Research (BCCR)

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…

bjerknes.uib.no/en/news/tap-...

Good news for the Gulf Stream! A study from @unibergen.bsky.social, the Bjerknes Centre and @ox.ac.uk indicates that the Arctic Ocean compensates for less deep water formation farther south. @mariusarthun.bsky.social @ailinbrakstad.bsky.social @jakobdoerr.bsky.social

🧪 Why do cities get so much hotter than the countryside, and what can we do about it?

In this video, Richard Davy from @nansensenteret.bsky.social and the Bjerknes Centre for Climate Research explains what an urban heat island is and how we can prevent them – in just 60 seconds!

Harmful algal blooms: What are the consequences of climate change for our coastal areas? - NERSC Algae in the ocean can pose a significant risk to humans, marine life, and the seafood industry. Under favourable conditions for algae growth, certain algae

nersc.no/en/features/...

🧪🦑 Harmful algal blooms

A new study from Edson Silva together with colleagues from @nansensenteret.bsky.social and the Bjerknes Centre shows how changes in sea temperatures and salinity could impact the two most harmful algae species along the Norwegian coast.

Read about the new study on link👇

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

"...and suggest that further research should focus on developing methods specifically tailored to capture the complex heterogeneity of mountain ranges, providing precise and reliable temperature estimations across time and space"

⛰️Depending on which dataset you use, the resulting treeline reconstruction for a given region can differ by thousands of metres.
💡They conclude with: "we advocate for more transparency and guidance in the methodologies of downscaled paleoclimate datasets for a broad audience..."

A poster with a reference to a new scientiifc publication: Global variability in LGM cooling amongst paleoclimate datasets affectsbiome reconstruction in mountains. By Eline Rentier et.al

🧪 @elinerentier.bsky.social and colleagues in Prague, Gothenburg Bergen & Brussels have compared five well-known paleoclimate datasets and found that they vary in mean annual temperature estimations.

biogeography.pensoft.net/article/1358...

Lake persisted where ice was expected in Arctic oasis Researchers discovered that plants and algae survived in a small Arctic lake during the coldest period of the last ice age, when the area was assumed to…

🧪 New research reveals that plants and algae survived in a Arctic lake on Svalbard, during the coldest phase of the last ice age, when the region was thought to be buried under ice.

How is that possible?

Read this paper led by @willemvdbilt.bsky.social

bjerknes.uib.no/en/news/arct...

…or simply google the publication title 😎

It should be open access - and the link seems to be broken. Try this one iopscience.iop.org/article/10.1...

Poster stating: New publicationby Natalya Gallo et al & the question: Are we treating the deep sea in an "out of sight, out of mind"-manner?

🧪 Read @natalya-gallo.bsky.social and colleagues on deep-sea considerations for marine carbon dioxide removal research.
🌊 New publication in Environmental Research letters
iopscience.iop.org/article/10.1...
🦑#addOcean

Photo from a research vessel taking water samples in Masfjorden in Norway.

This type of natural ventilation is important. The bottom water in Masfjorden has a long residence time, and the oxygen content gradually decreases. When new water flows in, it brings with it much-needed oxygen, which improves conditions for marine life in the fjord.

A graf that shows how the oxygen level in Masfjorden changed from January then when the water was replaced with oxygen rich water in May and the latest numbers from June

“The measurements from May show the conditions while the deep-water replacement is still ongoing. By June, it is more or less complete, and a larger part of the basin is filled with more oxygen-rich water,” says Lars Asplin from the Institute of Marine Research and the Bjerknes Centre.

A photo of Masfjorden in Norway which shows blue water and mountains in the distance, and the tip of a research vessel in front. At the top of the image is the text - what happened in the fjord?

For the first time since 2021 the deep water at Masfjorden has finally been replaced!🎉

Measurements from the Institute of Marine Research show an increase in oxygen levels, indicating that heavier and more oxygen-rich water has entered over the sill at the mouth of the fjord.🧪🌊

Searching for navigable seas and better ice predictions When Roald Amundsen planned his ship expedition to the North Pole, he saw no other option than sending his crew into the air to search for open leads.…

Means have changed, the aim is the same. Developing tools for navigation through sea ice requires creativity and technical skills, as shown by Anton Korosov and Artem Moiseev from @nansensenteret.bsky.social. 🌊 🧪

YouTube video by Bjerknes Centre for Climate Research Maching learning in ocean observations

How do we go from these spotty measurements to an estimate of the carbon uptake of the full ocean?
www.youtube.com/watch?v=DO09...

poster with text: Available position as postdoctoral research fellow. Expertise in Ocean biogeochemistry and scientific scripting and programming needed.

🧪Come join our team in Bergen, Norway
🌊 Key words: The role of the ocean in global carbon cylce
🐙🌐 if you held a PhD in marine biogeochemistry, oceanography, climate sciences - check out this available position at the Geophysical institute, UiB & BCCR
www.jobbnorge.no/en/available...

🇸🇪 Carl is now at @stockholm-uni.bsky.social

🧪 Former BCCR member @carlregnell.bsky.social has together with colleagues, including BCCR members Hardeng, Bakke, and Cederstrøm, published a study about anchoring the Swedish Time Scale to the radiocarbon time scale.

Check it out here:
pubs.geoscienceworld.org/gsa/geology/...

Meet our New Co-Leader of the Hazards Research Group Together with research leader Stijn De Schepper, Marie Fjalstad Jensen will help lead the work to understand the causes and dynamics behind extreme ocean…

The Norwegian fjords are famous for their beauty, but how are they affected by climate change? And what can we expect over the next five to ten years? That is the central question for Mari Fjalstad Jensen, the new co-leader of the Hazards research group at the Bjerknes Center. 🧪🌊

No fish, whales, or plankton: An ocean without life will absorb less carbon emissions and accelerate climate change - Norce Have you ever thought about what would happen if all life in the ocean disappeared? A recent study explores this extreme scenario to understand how ocean biology shapes the past, present, and future c...

www.norceresearch.no/en/news/inge...

❌🐟 No fish, whales, or plankton. How would an ocean without life be?

💡Researchers Jerry Tjiputra, Damien Couespel and Richard Sanders used the Norwegian Earth System Model (NorESM) to simulate what would be the consequences if all marine life disappeared.

🧪🌊 www.norceresearch.no/en/news/inge...

🧪 Daniel Gunning and colleagues has published a new study on the zonally averaged energy and moisture balance (ZEMBA) climate model, which is introduced as a simple and computationally efficient tool for studies of the glacial–interglacial cycles of the Quaternary.
gmd.copernicus.org/articles/18/...

🌊 Stefanie Semper and colleagues has looked into the recent sea-ice retreat in the western Nordic seas, that has exposed the ocean to the atmosphere in winter, thereby facilitating dense-water formation.

🧪 See the paper here: agupubs.onlinelibrary.wiley.com/doi/10.1029/...

Keeping an eye on the fjord The water at the bottom of many fjords in Western Norway may remain stagnant for years, to be replaced within a few weeks. Masfjorden is one of these…

In many Norwegian fjords, years can pass between each time the bottom water is renewed. In a new study, Torunn S. Sagen and colleagues from the Bjerknes Centre, @unibergen.bsky.social and the Institute of Marine Research investigate a numerical model’s ability to simulate such an event. 🔬🌊

🇧🇷🌧️ Shunya Koseki, Isabelle Vilela and Doris Veleda has investigated how the extreme rainfall event over eastern Northeast Brazil occurring at the end of May 2022 was induced dynamically using observational and reanalysis data.

🧪 See the publication here rmets.onlinelibrary.wiley.com/doi/10.1002/...

Podcast: Instruments in the dark – understanding Antarctica Inès Ollivier researches the deep ice in Antarctica, on the hunt for a greater understanding of our polar past. In this podcast she talks about her…

Read more about Dr. Ollivier's research and listen to the Bjerkens Podcast, with Inés talking about research and exeriences in Antarctica! 📻 🇦🇶 bjerknes.uib.no/en/news/podc...

🧪 🎉 🎓 We are celebrating Dr. Inès Ollivier today - successfully defending her thesis "“Impact of Surface Processes on the Antarctic Water Isotope Climate Signal"
Here with supervisor, Professor Hans Christian Steen-Larsen.