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legertancrede.bsky.social
Dr. Tancrède Leger
@legertancrede.bsky.social
230 followers 150 following 37 posts
Postdoc RA at University of Lausanne, interested in glacier and ice-sheet dynamics, climatology, Quaternary glaciology, glacier/ice-sheet modelling 🏔🧊💻🧪🇫🇷 https://sites.google.com/view/tancrede-leger
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legertancrede.bsky.social
Dr. Tancrède Leger @legertancrede.bsky.social · Jan 21
We have a paper out today in @naturecomms.bsky.social on modelling the last glaciation of the European Alps, resulting in a substantial decrease in long-standing model-data misfits ! doi.org/10.1038/s414...
A data-consistent model of the last glaciation in the Alps achieved with physics-driven AI - Nature Communications
This study employs a physics-informed AI model to reconstruct the last glaciation of the European Alps with high accuracy. The approach reduces ice thickness errors by 200–450%, yielding insights into...
doi.org
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Reposted by Dr. Tancrède Leger
sulpis.bsky.social
Olivier Sulpis @sulpis.bsky.social · 9d
🌟 Postdoc Opportunity in Marine Biogeochemistry at CNRS-CEREGE!

🚢 Are you a passionate researcher ready to tackle climate change? Dive into the ERC-funded Deep-C project in Aix-en-Provence, France!

⬇️
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Reposted by Dr. Tancrède Leger
subfossilguy.bsky.social
Melaine Le Roy @subfossilguy.bsky.social · 19d
Arsine Glacier
18th Sept. 2025

Great overview of this wonderful site we spent so many time studying! 🥰

The landform bottom L is a moraine complex deposited after a large RA onto the glacier ~10.7 ka

Check our freshly published TCN chronology of Arsine moraine sequence here! 👇

📷 @Meteofranz/IG
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Reposted by Dr. Tancrède Leger
natcomms.nature.com
Nature Communications @natcomms.nature.com · 20d
Are you a #geoscientist looking to transition to an #editorial career? Our #Earth team in Nature Communications is hiring, take a look here. www.nature.com/naturecareer...
Associate or Senior Editor, Nature Communications (Geosciences) - Shanghai, Beijing, Nanjing, New York, Washington, Jersey City, Madrid, Milan (hybrid) job with Springer Nature Ltd | 12844947
Job Title: Associate or Senior Editor, Nature Communications (Geosciences) Location(s): Shanghai, Beijing, Nanjing, New York, Washington, Jersey Ci...
www.nature.com
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Reposted by Dr. Tancrède Leger
dpcarrington.bsky.social
Damian Carrington @dpcarrington.bsky.social · 29d
Polar #geoengineering dismissed as “unimaginably expensive” and “dangerous”

Giant underwater curtains and artificial ice thickening diverts attention from cutting fossil fuel burning, climate scientists argue - but proponents disagree

#climatecrisis
Story by me
www.theguardian.com/environment/...
Polar geoengineering dismissed as ‘unimaginably expensive’ and ‘dangerous’
Underwater curtains and artificial ice thickening divert attention from cutting fossil fuel use, says group of climate scientists
www.theguardian.com
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Reposted by Dr. Tancrède Leger
reporterre.net
Reporterre 🌍 | Le média de l'écologie @reporterre.net · Sep 5
Canicules, sécheresses et incendies.

Après cet été brûlant, la climatologue Valérie Masson-Delmotte déplore que le gouvernement se cantonne à de la gestion de crise. « On n’a aucun cap au-delà de 2030 », résume-t-elle.

Lire l'article ➡️ https://l.reporterre.net/xWS
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Reposted by Dr. Tancrède Leger
hausfath.bsky.social
Zeke Hausfather @hausfath.bsky.social · Sep 4
I'm not sure many folks realize just how persistent the warming from CO2 is.

Here is a set of 1000-year climate model runs (using FaIR) simulating one year of CO2 emissions (40 gigatons in 2020); a millennia later the world has not cooled back down!
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Reposted by Dr. Tancrède Leger
alexandradelbot.bsky.social
Alexandra Delbot @alexandradelbot.bsky.social · Sep 2
Les orages supercellulaires, très rares mais dévastateurs, pourraient augmenter en Europe avec le changement climatique. Une nouvelle étude révèle qu’une hausse de 3 °C suffit à accroître leur fréquence de 11 % en Europe avec un bond bien + marqué dans les Alpes
Explications en GIF orages et chats ⬇️
Les Alpes, un futur foyer d'orages supercellulaires
Les orages supercellulaires, très rares mais dévastateurs, pourraient augmenter en Europe avec le changement climatique. Une nouvelle étude montre qu’un climat plus chaud de 3 °C suffirait à accroître...
www.radiofrance.fr
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legertancrede.bsky.social
Dr. Tancrède Leger @legertancrede.bsky.social · Aug 30
i.e the Greenland Ice Sheet mass loss is accelerating and closely follows IPCC’s worst-case high emissions projections : with no signs nor any reasons for this acceleration to stop anytime soon
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legertancrede.bsky.social
Dr. Tancrède Leger @legertancrede.bsky.social · Aug 30
Hmmm this statement feels well disconnected from the last two decades of research on current and future Greenland-Ice-Sheet mass losses :

www.science.org/doi/10.1126/...

essd.copernicus.org/articles/15/...
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Reposted by Dr. Tancrède Leger
alexislicht.bsky.social
Alexis Licht @alexislicht.bsky.social · Aug 25
Unbelievable experience with the journal Palaeo3. Our manuscript was rejected because… they couldn’t find a second reviewer, and it had been in their system “too long” (7 weeks), according to the editor. In other words, just to preserve their review-speed metrics, they rejected our submission.
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Reposted by Dr. Tancrède Leger
hassfacultyncl.bsky.social
Faculty of Humanities and Social Sciences at Newcastle Uni @hassfacultyncl.bsky.social · Aug 21
🌎 Professor of Glaciology, @iceybethan.bsky.social has been selected as a lead author on @ipcc.bsky.social's Report 7 - regarded as the world's most authoritative source of information on climate change.

✍️Find out how Bethan will be involved in this major report >> bit.ly/4mUcoQ1
Newcastle expert chosen as author for next IPCC report
Professor Bethan Davies has been selected as a lead author for the forthcoming Intergovernmental Panel on Climate Change (IPCC) Assessment Report 7.
bit.ly
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legertancrede.bsky.social
Dr. Tancrède Leger @legertancrede.bsky.social · Aug 6
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legertancrede.bsky.social
Dr. Tancrède Leger @legertancrede.bsky.social · Aug 6
🔥 New paper out! 🔥

A highly detailed TCN-based glacier chronology in the Alps: providing age constraints for a series of late glacial and Holocene glacier and RA events !

Congrats @subfossilguy.bsky.social et al!
Thrilled to have been part of this project!
authors.elsevier.com/a/1lYtM-4PSD...
authors.elsevier.com
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Reposted by Dr. Tancrède Leger
subfossilguy.bsky.social
Melaine Le Roy @subfossilguy.bsky.social · Aug 6
🔥 New paper out! 🔥

So thrilled (that's an understatement) to see this one out after so many yrs in the making!
authors.elsevier.com/a/1lYtM-4PSD...
Big shoutout to my coauthors, especially Irene and Philip! 🙏

We produced the most detailed TCN-based glacier chronology at a single site in the Alps!
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Reposted by Dr. Tancrède Leger
mikekapglacier.bsky.social
Mike K @mikekapglacier.bsky.social · Jul 14
New paper alert!

Holocene glacier and climate changes in central Patagonia.

Led by Carly Peltier. Also with @rlsoteres.bsky.social , and others...

authors.elsevier.com/c/1lN53-4PSD...
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Reposted by Dr. Tancrède Leger
cassouman40.bsky.social
Christophe Cassou @cassouman40.bsky.social · Jul 13
Le vide argumentaire du grp macroniste #LoiDuplomb pourrait être risible s'il n’était que politicard.
Mais il est terrifiant de cynisme&irresponsabilité car il compromet tout simplement santé publique, partage des communs...
Il acte aussi +largement une certaine vision politique/rupture démocratique
bonpote.com
Bon Pote @bonpote.com · Jul 13
Gabriel Attal a censuré les commentaires qui n'allaient pas dans son sens lorsqu'il a justifié son vote sur la loi Duplomb. Philippe Grandcolas, directeur de recherche au CNRS, répond à ses arguments point par point :
bonpote.com/loi-duplomb-...
Loi Duplomb : réponse à la censure de Gabriel Attal
Suite à la censure du commentaire de Bon Pote sur le réseau social Instagram sous un post de Gabriel Attal concernant la lui Duplomb
bonpote.com
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Reposted by Dr. Tancrède Leger
subfossilguy.bsky.social
Melaine Le Roy @subfossilguy.bsky.social · Jul 8
Who could have predicted? 🙃

Marseille, France's 3rd largest city threatened by huge wildfires after the hottest June on record and a Mediterranean Sea +7°C >normal in early July! 🔥🔥🔥

People have to shut themselves away in their homes! 😱

Do you like the new normal?

🎥 © Jean-Baptiste Rivoallan
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legertancrede.bsky.social
Dr. Tancrède Leger @legertancrede.bsky.social · Jul 5
Amazing work Pete ! Congrats 🙌 :)
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Reposted by Dr. Tancrède Leger
petetuckett.bsky.social
Pete Tuckett @petetuckett.bsky.social · Jul 4
I’m delighted to share that our new paper is now out in @natclimate.nature.com! Our long-term, monthly Antarctic-wide dataset of surface meltwater shows that the East Antarctic Ice Sheet is becoming increasingly prone to surface meltwater ponding.
Continent-wide mapping shows increasing sensitivity of East Antarctica to meltwater ponding - Nature Climate Change
This study provides a continent-wide assessment of surface meltwater area in Antarctica between 2006 and 2021, highlighting recent increases in magnitude and variability in East Antarctica, with indic...
www.nature.com
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legertancrede.bsky.social
Dr. Tancrède Leger @legertancrede.bsky.social · Jun 28
Thanks Melaine ! :)
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legertancrede.bsky.social
Dr. Tancrède Leger @legertancrede.bsky.social · Jun 28
A little preview of the 3D topo of the Swiss alps with our LGM-to-future glacier simulation movie projected onto : and which will soon depart for the Universal exhibition in Osaka (Swiss pavillon)! Currently in the Geopolis of University of Lausanne for those who want to check it out !
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legertancrede.bsky.social
Dr. Tancrède Leger @legertancrede.bsky.social · Jun 23
The 3D wood-carved topography of the Alps, on which we project the video and simulation using a custom-system, was desined and produced by Régis Widmer www.laporch.ch

www.linkedin.com/in/r%C3%A9gi...
LAPORCH
www.laporch.ch
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legertancrede.bsky.social
Dr. Tancrède Leger @legertancrede.bsky.social · Jun 23
The Satellite-view texturisation of the model, enabling a more public-friendly visualization: is the result of the IceAgeCam project iceagecam.ch
and the work of PhD candidate Brandon Finley www.linkedin.com/in/brandon-f...
Ice Age Cam
iceagecam.ch
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legertancrede.bsky.social
Dr. Tancrède Leger @legertancrede.bsky.social · Jun 23
The modelling work stems from this study published earlier this year: doi.org/10.1038/s414...
And is the result of years of development on the @igm-model.bsky.social by Prof. Guillaume Jouvet and team
A data-consistent model of the last glaciation in the Alps achieved with physics-driven AI - Nature Communications
This study employs a physics-informed AI model to reconstruct the last glaciation of the European Alps with high accuracy. The approach reduces ice thickness errors by 200–450%, yielding insights into...
doi.org
1
legertancrede.bsky.social
Dr. Tancrède Leger @legertancrede.bsky.social · Jun 23
Delighted to announce that we will present modelling results from our study on the last glaciation of the Alps at the Osaka Universal Exhibition this summer!

LGM-to-future evolution of glaciers projected on 3D wood-carved topo of the Alps !

Details: www.unil.ch/news/fr/1750...

#OsakaWorldExpo
Les Alpes comme on ne les a jamais vues : cette maquette de visualisation 3D partira pour Osaka
Des scientifiques de l’UNIL ont réalisé une maquette de visualisation 3D unique, qui montre l’évolution de la couverture glaciaire en Suisse depuis la dernière grande glaciation, et jusque dans un fut...
www.unil.ch
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