Anna Wåhlin

Haha 😬

@kongsbergasa.bsky.social @kongsberggruppen.bsky.social

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...

🌊
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...

🚨 #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.

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...

ALLEA Statement on Threats to Academic Freedom and International Research Collaboration in the United States

”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...

🧪 🌊

@barefootlab.bsky.social @agu.org @naturvetenskap.bsky.social @awahlin.bsky.social @hlscheung.bsky.social

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

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? 🧵🧪

A white opaque square mostly covers a backdrop of Unalaska, shown with a ship in the foreground at sea. The Polar Impact logo with a penguin atop the earth is shown in between the first two blocks of text. The text overlaid reads: Restoring Stewardship // Unangam Maqax̂singis suuĝutakus How an Unangax̂ Scientist is Using Traditional Knowledge in Environmental Data Collection // // Matal Unangam Scientist-ii Unangam maqax̂singis qigulganaa By Kanesia Price-McGlashan // Kanesia Price-McGlashan ilaan

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.

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 is Antarctica melting, exactly? Crucial details are beginning to come into focus The Antarctic ice sheet is nearly twice the area of Australia and holds enough freshwater to raise global sea levels by 58 metres.

And accompanying article in @aunz.theconversation.com
theconversation.com/how-is-antar...

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...

New blogpost: gobbledegook papers as canaries in the coalmine- and more bad news for MDPI
deevybee.blogspot.com/2025/01/toma...

Awesome list! Is there room for me too? :)

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:

Väldigt coolt och intressant - och bra intervju med Margareta Hansson på Stockholms Universitet. Läs om den äldsta isen

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 …

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:

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

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.

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.

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!

🌊 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.

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, ...

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...

🙌🙌🙌

The SOCCOM & GO-BGC Christmas Tree.

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.

🎄

Observational Air-Sea Interactions - Assistant Professor University of California, San Diego is hiring. Apply now!

🌊 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

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

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.

Schematics showing the key drivers of sea ice thickness in a coastal embayment (wind direction and intensity)

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....

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.

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. ⬇️

This is oceanography the hard way.
Before any instruments or samplers are deployed, we hot water drill an access hole through several hundred metres of ice shelf. Don't dilly-dally though, freezing closes the hole in a day or two.