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James Lea

@jamesmlea.bsky.social

1.6K followers 580 following 98 posts

Glaciology jack of all trades. Ice mud and satellite botherer at Liverpool Uni. He/him ❄️🛰️🏳️‍🌈

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James Lea @jamesmlea.bsky.social · Dec 6

Cathartic update to my #GoogleEarthEngine tools replacing socials link to the *other place* with Bluesky. As a quick reminder of the tools:
GEEDiT - digitising from satellite imagery
GEEClimT - easy access to loads of climate reanalysis products
GEECE - easy and customisable CMIP6 data access tool

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Geography at Durham @geogdurham.bsky.social · Jul 11

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...

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...

www.nature.com

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Harold Lovell @hazlovell.bsky.social · Jun 16

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...

Frozen, thawed: how Arendelle’s glacier would fare under modern climate change

A glaciologist investigates a Disney classic.

theconversation.com

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Billy Armstrong @app-glaciers.bsky.social · May 23

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....

Schematic illustrating estimation of frontal ablation on lake-terminating glaciers

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James Lea @jamesmlea.bsky.social · May 8

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

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

James Lea @jamesmlea.bsky.social · May 4

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 😅

Screenshot showing all levels completed of Danish Duolingo!

James Lea @jamesmlea.bsky.social · Apr 30

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

Abstract EGU25-12214

meetingorganizer.copernicus.org

James Lea @jamesmlea.bsky.social · Apr 30

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*

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Penny How @snowhow.bsky.social · Mar 23

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 ❄️

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!

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Movies Silently @moviessilently.bsky.social · Mar 1

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

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James Lea @jamesmlea.bsky.social · Feb 27

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

Brandon Daly ❄️ @bdglaciers.bsky.social · Feb 26

In the meantime, take a look at the early days of glaciology. And why glaciers and other landmarks shouldn't be named after Louis Agassiz: open.substack.com/pub/glaciers...

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Christopher Darvill @chrisdarvill.bsky.social · Feb 21

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...

Lecturer in Physical Geography :Oxford Road

www.jobs.manchester.ac.uk

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Bethan Davies @iceybethan.bsky.social · Feb 3

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...

Polar science needs diversity - AntarcticGlaciers.org

We write in solidarity with our colleagues in the USA and internationally, who are suffering as efforts to increase equality, diversity and inclusion are systematically eroded and destroyed. It is imp...

www.antarcticglaciers.org

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Tom Chudley @tomchudley.bsky.social · Feb 3

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

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.

www.nature.com

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James Lea @jamesmlea.bsky.social · Jan 31

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

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

James Lea @jamesmlea.bsky.social · Jan 26

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!

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

James Lea @jamesmlea.bsky.social · Jan 22

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!

James Lea @jamesmlea.bsky.social · Jan 18

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

James Lea @jamesmlea.bsky.social · Jan 18

Ah, my commiserations to Arthur 😉

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James Lea @jamesmlea.bsky.social · Jan 18

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

James Lea @jamesmlea.bsky.social · Jan 18

What's with the Liverpool hating?!

James Lea @jamesmlea.bsky.social · Jan 14

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

James Lea @jamesmlea.bsky.social · Jan 6

Will keep an eye out!

James Lea @jamesmlea.bsky.social · Jan 6

Which channel?!

James Lea @jamesmlea.bsky.social · Dec 28

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

James Lea @jamesmlea.bsky.social · Dec 23

🤣