Ruth Mottram
ruthmottram.bsky.social
Ruth Mottram
@ruthmottram.bsky.social
Climate scientist at DMI, Greenland, Antarctica, polar regions in general.
Dipping a toe in yet another social media site. Mostly on mastodon though @ruth_mottram@fediscience.org
Blogging at sternaparadisaea.net
Pinned
In case you were wondering why we're doing glaciology fieldwork in NW Greenland this year, here is (part of) the answer...
It's all to do with an early break up of sea ice.

❄️🧪🥼⚒️⛏️
Stumbled over this piece, that I wrote earlier this year* after last year's #AcWriMo, and reposting here in case it gives someone some motivation...

*Though it feels a lot longer ago. Man this year has gone fast...
 #FediWriMo #AcWriMo25

sternaparadisaea.net/2025/01/25/j...
Just one thing…
Some reflections on surviving in science and getting this far…
sternaparadisaea.net
November 11, 2025 at 6:56 AM
Reposted by Ruth Mottram
Ask not what your journal can do for you—ask what you can do for your journal 🌊

JGR:Oceans is now looking for new Editors and Associate Editors, if you're interested get in touch. We don't bite! 😀
November 11, 2025 at 1:38 AM
Reposted by Ruth Mottram
Oops. Ooooooooooooops.

I do hope that nobody has been given or denied a job/promotion based on their SpringerNature citation counts in the past 15 years.

arxiv.org/pdf/2511.01675

h/t @nathlarigaldie.bsky.social
November 7, 2025 at 2:02 PM
Reposted by Ruth Mottram
Freshwater Writing

How to handle freshwater fluxes from ice sheets in climate models, where there isn't an ice sheet model component? A new paper just out reveals all...
Freshwater Writing
How to handle freshwater fluxes from ice sheets in climate models, where there isn't an ice sheet model component? A new paper just out reveals all...
sternaparadisaea.net
November 10, 2025 at 8:11 AM
Reposted by Ruth Mottram
In the century leading up to 1975, nearly 6000 freighters went down in the Great Lakes.

The Edmund Fitzgerald was the last.

The last. In 50 years, not a single commercial freighter has been lost in the Great Lakes.

Why?

It's NOAA. Of course it's NOAA.
November 11, 2025 at 1:50 AM
Reposted by Ruth Mottram
Oh, I love this. A new species of sea anemone was discovered recently that parks itself on top of a hermit crab shell like a hat. It seems to feed partly off the crab's faeces, but it also excretes a hard shell that extends the crab's home. In return, it's carried around the seafloor like a king.
November 10, 2025 at 9:57 PM
Reposted by Ruth Mottram
Did you know that the two Light-bellied Brent Goose populations – from Canada and Svalbard – largely winter on Strangford Lough and Lindisfarne respectively, while the birds wintering elsewhere in Britain come from the Russian Dark-bellied population?

📷 Philip Croft / BTO
November 10, 2025 at 7:00 PM
Reposted by Ruth Mottram
Everyone please welcome @ricarda-winkelmann.bsky.social to Bluesky! Go give her a follow 🌊❄️
November 10, 2025 at 1:58 PM
Anyone know anything about solidagent.io?

It appears to be an EU hosted "AI" host: they have trained models on their own platform, rather than using API so presumably queries etc stay on their servers.

#privacy focus looks good and test query responses were impressive

www.solidagent.io/privacy
solidagent - The virtual AI assistant with privacy in mind
Accelerate your work with AI tools and assistants, without compromising data safety
solidagent.io
November 10, 2025 at 10:13 AM
Reposted by Ruth Mottram
Hungary, Slovakia...what are they doing in EU? 🙈
November 10, 2025 at 8:29 AM
Freshwater Writing

How to handle freshwater fluxes from ice sheets in climate models, where there isn't an ice sheet model component? A new paper just out reveals all...
Freshwater Writing
How to handle freshwater fluxes from ice sheets in climate models, where there isn't an ice sheet model component? A new paper just out reveals all...
sternaparadisaea.net
November 10, 2025 at 8:11 AM
Reposted by Ruth Mottram
Suganuma et al provide a thorough examination of the Holocene collapse of the Lützow-Holm Bay ice shelf in Antarctica. They pinpoint when the collapse happened by investigating the beryllium isotopes. When the bay became open ocean, cosmogenic ¹⁰Be could reach the sediments. doi.org/10.1038/s415...
Antarctic ice-shelf collapse in Holocene driven by meltwater release feedbacks - Nature Geoscience
Early Holocene retreat of an ice shelf in East Antarctica was linked to ocean-driven forcing enhanced by ice-sheet meltwater from adjoining regions, as unveiled through the integration of proxy record...
doi.org
November 10, 2025 at 5:14 AM
Reposted by Ruth Mottram
Exactly. The area used for on-street parking in Frederiksberg (a municipality within central Copenhagen) is about the same as the park Frederiksberg Have (0.3 km2) 🤯
November 9, 2025 at 8:01 PM
Reposted by Ruth Mottram
Cofield and Darby analyze a core located NW of Svalbard for ice rafted debris. They make the surprising finding that the Barents Sea Ice Sheet may not have formed during the MIS 10 and 8 glacial periods, and that if the Arctic ice shelf existed, it may have been early MIS 6. doi.org/10.1016/j.qu...
Redirecting
doi.org
November 10, 2025 at 6:14 AM
Reposted by Ruth Mottram
Finally out! The outcome of a virtual workshop in Feb 2024 with modelers and observationalists to put together data and protocols to include historical changes in ice sheet/ice shelf discharge in CMIP models. Hopefully not too late for some CMIP7 runs!

gmd.copernicus.org/articles/18/...
Datasets and protocols for including anomalous freshwater from melting ice sheets in climate simulations
Abstract. Anomalous freshwater fluxes from the Greenland and Antarctic ice sheets and ice shelves are impacting the surrounding oceans, and we need to be able to account for these effects in climate m...
gmd.copernicus.org
November 7, 2025 at 9:31 PM
Reposted by Ruth Mottram
Ice at the sea surface blocks cosmic dust from reaching the seafloor, while open water allows cosmic dust to settle into sediment. By analyzing the amount of cosmic dust in sediment cores from three sites, researchers reconstructed the history of sea ice for the past 30,000 years via @uwnews.uw.edu.
Space dust reveals Arctic ice conditions before satellite imaging
A new University of Washington-led study shows that space dust sandwiched between layers of sediment tells scientists where and when ice covered the Arctic, and what happened to marine life when it...
www.washington.edu
November 6, 2025 at 9:41 PM
I can't believe Science In Action is ending! We're going to miss you @peaseroland.bsky.social !
A very serious warning encoded in this final episode for everyone to listen to.

How science got here, and where next

Episode webpage: www.bbc.co.uk/programmes/w...
BBC World Service - Science In Action, How science got here, and where next
As anti-science leaves research reeling, does evidence-based policy have a future?
www.bbc.co.uk
November 7, 2025 at 6:31 PM
Reposted by Ruth Mottram
What gray whales are telling us about ecosystem change in the Pacific Arctic
What gray whales are telling us about ecosystem change in the Pacific Arctic
Abstract. Gray whales in the eastern North Pacific have been in steep decline for the past six years, and recent estimates of abundance, reproductive outpu
academic.oup.com
November 7, 2025 at 5:57 PM
I mean, it's almost like they've never heard of Betteridge's law..
Honestly grateful to Douthat for this accessible distillation of this point of view. Going to be a great teaching tool that generates lots of conversation.
November 7, 2025 at 12:29 AM
Reposted by Ruth Mottram
🎯
November 6, 2025 at 7:37 PM
Reposted by Ruth Mottram
your energy bills are rising because they're forcing you to use millions-years-old sunlight instead of today's
November 6, 2025 at 5:57 PM
"Pokrovsk is not the end of the story, but should be a wake-up call. “Russia has gained a sense of courage,” says intelligence source. “It is time for everyone at home + in the West to stop messing around.”
Ukraine’s valiant defence of Pokrovsk is nearing its end
www.economist.com/europe/2025/...
https://www.economist.com/europe/2025/11/06/ukraines-valiant-defence-of-pokrovsk-is-nearing-its-end?giftId=ODEzZjhkOGMtZmUwZS00MzgwLTkxNzMtYzIzMjlmNjZiYmZm&utm_campaign=gifted_article
www.economist.com
November 6, 2025 at 7:17 PM
Reposted by Ruth Mottram
Science is facing *a lot* of obstacles these days. The final episode of BBC's Science in Action looks at where things are heading, with @michaelemann.bsky.social @naomioreskes.bsky.social & @angierasmussen.bsky.social @drdebhoury.bsky.social : www.bbc.co.uk/programmes/w... #science #antiscience
BBC World Service - Science In Action, How science got here, and where next
As anti-science leaves research reeling, does evidence-based policy have a future?
www.bbc.co.uk
November 4, 2025 at 7:34 PM