James Lea

Extensive fluvial surfaces at the East Antarctic margin have modulated ice-sheet evolution - Nature Geoscience Extensive flat surfaces observed beneath the East Antarctic Ice Sheet margin were formed by fluvial erosion and have modulated the ice-sheet response to climate change, according to an analysis of rad...

Great work by our colleagues Stewart Jamieson and Guy Paxman: "We have been using satellite data to map an ancient river landscape beneath the East Antarctic Ice Sheet:. The landscape has been frozen in time for up to 34 million years." ⚒️🧪

www.nature.com/articles/s41...

Frozen, thawed: how Arendelle’s glacier would fare under modern climate change A glaciologist investigates a Disney classic.

Inspired by many, many viewings with my kids, I wrote something for @uk.theconversation.com that imagines how the Arendelle glacier in Disney's Frozen might look after 200 years of climate change:

theconversation.com/frozen-thawe...

Schematic illustrating estimation of frontal ablation on lake-terminating glaciers

Excited that Noah Caldwell's work is officially out in @igsoc.bsky.social Journal of Glaciology! Noah used satellite remote sensing to estimate how much ice is being lost to iceberg calving and subaqueous melt on 55 Alaska lake-terminating glaciers. Read more: doi.org/10.1017/jog....

Wikipedia page giving the entire biography of the new pope as "poopbutt"

Not the bio from #wikipedia I was expecting of new #pope...

Screenshot showing all levels completed of Danish Duolingo!

Finished Danish Duolingo!

Slightly disappointed the owl seems indifferent, though to be fair I did systematically skip all the spoken exercises after resigning myself to never getting the pronunciation right 😅

Anyone interested this afternoon should head along to 1.34 at 15:30 meetingorganizer.copernicus.org/EGU25/EGU25-...

Title slide of presentation

Unfortunately not at EGU as planned this year, but Steve Brough is stepping in for me this afternoon to tell you how many glaciers globally have disappeared or fragmented since 2000. CW: it's a *lot*

Penny in Iceland last week. She is taking a selfie on Sólheimajökull, wearing a helmet, sunglasses, and gear for being on a glacier and learning some rescue training. It is very sunny and warm, so smiles all round!

I should probably re-introduce myself here to new and old connections…
- Hi my name is Penny and I am a data scientist at the Geological Survey of Denmark and Greenland 🇬🇱 🇩🇰
- I have a Ph.D. in glaciology but have moved away from academia a little with my data scientist role ❄️

Please enjoy a moment of Norwegian-Penguin diplomacy taken during Roald Amundsen's successful attempt to reach the South Pole.

Well worth a read for all glacios, and that Karl Schimper (amongst others) should be much better known!

Lecturer in Physical Geography :Oxford Road

Job Alert! Permanent Lecturer in Physical Geography (Teaching & Research), specialising in peatland science. Come join our Department of Geography at The University of Manchester! Deadline 27 March 2025 www.jobs.manchester.ac.uk/Job/JobDetai...

28 people have added their names already. If you'd like to join us in solidarity and to emphasise the importance of EDI in polar science, then let me know.
www.antarcticglaciers.org/2025/02/pola...

Increased crevassing across accelerating Greenland Ice Sheet margins - Nature Geoscience Greenland-wide observations of crevasse volume and distribution suggest substantial increases in crevassing between 2016 and 2021 at marine-terminating sectors with accelerating ice flow.

Our new paper is out in Nature Geoscience! In an ice-sheet-wide 3-D inventory of crevasses in 2016 and 2021, we find that crevasses are growing in response to ice acceleration on short timescales. @durham-university.bsky.social @byrdpolar.bsky.social @leverhulme.bsky.social

Photo from an aeroplane window of Venus (top left) and Mars (bottom right) above clouds illuminated from below by the lights of Manchester

No aurora flying south from Tromsø, though did manage to get a slightly shaky photo of Venus and Mars just above the Manchester clouds

Screenshot of flight radar website showing Manchester to Oslo flight with a top ground speed of 504 knots!

Looks like my flight to Oslo picked up the jet stream on way across the North Sea. According to @flightradar24.com we hit about 930kph!

Just implemented a bug fix highlighted by a GEECE user that was stopping them generating a daily resolution CMIP6 ensemble.

Periodic reminder to let me know when things don't work and I'll fix them!

As someone who's supported Liverpool and Blackpool since childhood I'm all too familiar with his pain 😅

Ah, my commiserations to Arthur 😉

Can't we all just let Liverpool win the league, hope City get stripped of their titles, and get behind Man United getting relegated?

What's with the Liverpool hating?!

Congrats Ellyn! Excellent news and super well deserved! 😁🎉🥳

Will keep an eye out!

Which channel?!

Still mispronounces Poulton with their East Lancs shenanigans! *shakes fist in the general direction of Accrington*

🤣

each brief foray I've made into it (with the very patient help of colleagues) has really highlighted how diverse and interesting this corner of history is, and how you really can't just lump "The Vikings" altogether into a single group or period of time. [3/3]

As someone who's occasionally worked very much on the edges of this field during my work in Greenland I claim practically zero expertise on this. However... [2/3]

"The Vikings" might not be what you think they are...

Really nice (and accessibly written) piece on why "The Viking Age" may only be historically useful as a term if you're looking at English history, and applying it more broadly doesn't make sense. [1/3]

I’m thrilled to bits to have been awarded the Richardson Medal by @igsoc.bsky.social. Thanks so much to all my wonderful colleagues and especially to those who nominated me! You’re all so kind. www.igsoc.org/about/awards...

Super happy to say congratulations to @iceybethan.bsky.social on being awarded the @igsoc.bsky.social Richardson Medal!

Hugely well deserved and really couldn't have happened to a nicer person 🥳🥳🥳

www.igsoc.org/about/awards...