Anna Wåhlin
awahlin.bsky.social
Anna Wåhlin
@awahlin.bsky.social
Physical oceanographer with a penchant for cake, polar seas, glaciology, my awesome daughters. https://www.gu.se/om-universitetet/hitta-person/annawahlin
Reposted by Anna Wåhlin
Nominations need to be via my department, and timeline is extremely short (a week from now). Scientific achievements need to be "Highly excellent" as defined by the Swedish Research Council. There will be further calls 2026. (2) of (3)
Please
November 10, 2025 at 9:32 AM
🌊
Very happy to share these news! Ran II is on the way. We can continue to pursue the fascinating research questions, with our amazing collaborators throughout the world! Hurra!!!
@bbc-bot.bsky.social @agu.org @antarcticsciaus.bsky.social @nature.com
www.gu.se/en/news/repl...
Replacement for lost AUV Ran is on its way
The University of Gothenburg will buy a new underwater vehicle to replace Ran, that was lost under a glacier in Antarctica in 2024. A large donation means that researchers can plan for new expeditions...
www.gu.se
October 16, 2025 at 9:52 AM
Reposted by Anna Wåhlin
🚨 #NOAA is essential for weather forecasting, climate research, and public safety.

AGU stands with the scientific community in urging Congress to protect and strengthen NOAA, not dismantle it.

Our economy, environment, and safety depend on it.
February 28, 2025 at 12:30 PM
Reposted by Anna Wåhlin
A Pacific MOC (PMOC) will develop in the future to counterbalance the AMOC weakening. However, the sinking associated with the PMOC is not strong enough to completely compensate for the upwelling in the Southern Ocean; thus, the AMOC will not collapse: 🌊🥼❄️ www.nature.com/articles/s41...
February 26, 2025 at 6:49 PM
”Such censorship and political suppression of language, research topics, and methodologies…. fundamentally compromise the integrity of scientific and scholarly endeavours not just in the U.S. but around the world.”
👏👏👏
Read the full statement from ALLEA here:
allea.org/portfolio-it...

🧪 🌊
ALLEA Statement on Threats to Academic Freedom and International Research Collaboration in the United States
allea.org
February 25, 2025 at 9:49 PM
Reposted by Anna Wåhlin
Paper out @agu.org!

Overall, global fjords are minor sources of #N2O to the atmosphere

❗ BUT fjords with #aquaculture and #anoxia host relatively high nitrous oxide #emissions

👉 doi.org/10.1029/2024...

🤝Great collaboration with @barefootlab.bsky.social @awahlin.bsky.social
February 13, 2025 at 11:22 AM
Reposted by Anna Wåhlin
Some people on this and other social media platforms have been claiming that something dramatic is about to happen at Thwaites Glacier, and implying that this will result of an abrupt rise is sea level within a few years. So what's really going on? 🧵🧪
January 26, 2025 at 8:55 AM
Reposted by Anna Wåhlin
We are so pleased to share that our first long form multimedia article is officially live! We are honored to have worked with Unangax̂ multimedia creator Kanesia McGlashan-Price as she told the story of Shayla Alamax̂ Shaishnikoff, an Unangax̂ scientist.
January 20, 2025 at 5:32 PM
Reposted by Anna Wåhlin
TL;DR ice shelves melt in weird and wonderful ways, most of which aren't represented in our ocean/ice sheet models (and should be!)

Proud to share our review in Annual Reviews Marine Science:
www.annualreviews.org/content/jour...
How Does the Ocean Melt Antarctic Ice Shelves? | Annual Reviews
The present-day state and future of the Antarctic Ice Sheet depend on the rate at which the ocean melts its fringing ice shelves. Ocean heat must cross many physical and dynamical barriers to melt ice...
www.annualreviews.org
January 17, 2025 at 5:47 AM
Reposted by Anna Wåhlin
New blogpost: gobbledegook papers as canaries in the coalmine- and more bad news for MDPI
deevybee.blogspot.com/2025/01/toma...
Tomatoes roaming the fields and canaries in the coalmine: another embarrassing paper for MDPI
Many publishers are getting nervous about infiltration by paper mills, who can torpedo a journal's reputation when they succeed in publis...
deevybee.blogspot.com
January 18, 2025 at 3:51 PM
Reposted by Anna Wåhlin
I’m very excited to finally share the results of a passion project that has been on my mind for nearly a decade. You can find the pre-print below, but what follows is the saga of how this project came to be:
January 15, 2025 at 7:22 PM
Väldigt coolt och intressant - och bra intervju med Margareta Hansson på Stockholms Universitet. Läs om den äldsta isen
Forskare har tagit upp en 1,2 miljoner år gammal isborrkärna – något som beskrivs som ”ett historiskt ögonblick för klimat- och miljöforskningen”. Läs Anna Liljemalms reportage om en Noaks ark för isprover:
Världens äldsta is avslöjar klimatets hemligheter | Forskning & Framsteg
Margareta Hansson försvinner in under ett stort skrivbord på Stockholms universitet. Utomhus är det plusgrader, men ur en metallåda på kontoret plockar hon snart fram …
fof.se
January 10, 2025 at 3:15 PM
Reposted by Anna Wåhlin
Forskare har tagit upp en 1,2 miljoner år gammal isborrkärna – något som beskrivs som ”ett historiskt ögonblick för klimat- och miljöforskningen”. Läs Anna Liljemalms reportage om en Noaks ark för isprover:
Världens äldsta is avslöjar klimatets hemligheter | Forskning & Framsteg
Margareta Hansson försvinner in under ett stort skrivbord på Stockholms universitet. Utomhus är det plusgrader, men ur en metallåda på kontoret plockar hon snart fram …
fof.se
January 10, 2025 at 12:15 PM
Reposted by Anna Wåhlin
Here's what the platelet layer looks like from underneath: untold billions of individual ice crystals float up from the water column to accumulate against the base of the sea ice above them. The crystals deposit like grains of sand, creating ripple & billow structures.

📽 Leigh Tait | NIWA & Boxfish
January 9, 2025 at 9:45 PM
Reposted by Anna Wåhlin
This will get a bit lost in the shuffle of everything, but glaciologists in Antarctica have finally drilled a continuous ice core stretching past 1 million years. Congrats to the Beyond EPICA team! Can't wait to see the results.
Scientists drill nearly 2 miles down to pull 1.2 million-year-old ice core from Antarctic
Analysis of the ancient ice is expected to show how Earth’s atmosphere and climate have evolved.
www.nbcnews.com
January 9, 2025 at 7:33 PM
Reposted by Anna Wåhlin
Congrats to all around good (also v. smart) guy Richard Alley!

He didn’t need to, but he recently helped me out of a really tight spot. I think he helped me because he’s a great person and wants to help science and scientists. Need more like him out there!
January 4, 2025 at 3:35 AM
Reposted by Anna Wåhlin
🌊 Cannot cover publication costs @jgroceans.bsky.social?Ask for a fee waiver. Society journal fees reflect the cost of enduring scientific quality and integrity: Decades of honing and encoding best practices, professional QC, record-keeping and conflict resolution, forever-archiving.
January 1, 2025 at 7:17 PM
Reposted by Anna Wåhlin
Weekly climate update. Research results show that sea ice concentrations around Antarctica have been reduced “by up to 80%…accompanied by an unprecedented doubling of mid-winter ocean heat loss” causing increased storminess and potential impacts on ocean circulation. www.nature.com/articles/s41...
Record-low Antarctic sea ice in 2023 increased ocean heat loss and storms - Nature
The record-low Antarctic sea-ice decline in 2023 substantially altered Southern Ocean–atmosphere interaction leading to unprecedented wintertime turbulent ocean heat loss to the atmosphere, ...
www.nature.com
December 27, 2024 at 4:38 PM
Reposted by Anna Wåhlin
Happy Holidays from the SOCCOM (soccom.princeton.edu) and GO-BGC (go-bgc.org) projects. The present under the tree? 115 BGC-Argo profiling floats deployed this year and more at sea. All data freely available.

Thanks to all the folks who made this happen and the US NSF for their support.
December 21, 2024 at 1:06 AM
Reposted by Anna Wåhlin
🌊 We're hiring! Seeking someone working on air-sea interactions to come join us at Scripps. Happy to answer any questions about the job or life at Scripps. apol-recruit.ucsd.edu/JPF03874
Observational Air-Sea Interactions - Assistant Professor
University of California, San Diego is hiring. Apply now!
apol-recruit.ucsd.edu
November 20, 2024 at 2:58 AM
Reposted by Anna Wåhlin
At the invitation of @eleanorfrajka.bsky.social, I'll be teaching this 2 week graduate course in person:

Ocean/Atmosphere Time Series Analysis
Univ. of Hamburg
17-28 March 2025

If you are based elsewhere, you can still come, at no cost.

Details & application:
conferences.uni-hamburg.de/event/560
December 15, 2024 at 9:28 PM
Reposted by Anna Wåhlin
With an exponential growth in publications, are we advancing ocean science faster than ever before? As EiC @jgroceans.bsky.social I see better analyses on bigger data, but often at the cost of reflection on previous studies and of articulation of the most important gaps in our understanding.
December 14, 2024 at 7:18 PM
Reposted by Anna Wåhlin
Sea ice is a key moderator of ocean-atmosphere exchange, but what controls its thickness? Richter et al., present fast-ice data for McMurdo Sound from 1986–2022 and infer the key drivers of ice dynamics.
agupubs.onlinelibrary.wiley.com/doi/full/10....
December 14, 2024 at 1:10 AM
Reposted by Anna Wåhlin
A satellite-mounted instrument has in just one year produced higher-resolution imagery of the global seafloor than that from comparable systems over the past 30 years. 'Sea' for yourself and learn more about the new study led by Scripps Oceanography postdoctoral scholar Yao Yu. ⬇️
SWOT Sharpens Seafloor Focus
A satellite-mounted instrument has in just one year produced higher-resolution imagery of the global seafloor than that from comparable systems over the past 30 years.
scripps.ucsd.edu
December 13, 2024 at 9:48 PM