@subfossilguy
Assiduous dendroglaciologist, moraine lover, wandering geomorphologist, living in the Holocene, climate (and eco-) anxious, @edytem.bsky.social https://www.researchgate.net/profile/Melaine-Le-Roy-2?ev=hdr_xprf
Significant acceleration of global warming since 2015, finds news PIK study with @rahmstorf.bsky.social
Recent warming: around ~0.35°C per decade.
1970–2015 average: just under 0.2°C per dec.
➡️Current rate is higher than in any decade since records began in 1880.
www.pik-potsdam.de/en/news/late...
Below Mer de Glace, EDF captures meltwater for hydroelectricity, but discharge will decline from 2040! 🧊💧
‘In 2011, we rebuilt the water intake at 1,560 m, [which] will be exposed to open air in 1 or 2 yrs.’ 📈
The latest intake, inaugurated 2 yrs ago, has not been installed under the glacier! 🔥
View on the 5th March of the huge landslide that occurred near La Grande Cascade icefall in the #Gavarnie cirque! ❄️
Impressive! 😲
Via @PardoMerelo
Perito Moreno has been stable for over 100 years, but it's no longer the case! 🧊🔥
The iconic Patagonian glacier has entered an unstable phase of retreat since 2018, increasingly rapid in recent years 📈
Retreat has been delayed until then by a morainal bank!
www.sciencedirect.com/science/arti...
Mer de Glace from Signal Forbes
1890 | 2013 | 2021 | 2024
Strong acceleration of the demise of the largest French glacier over last few years! 🧊🔥
Mer de Glace from Signal Forbes
1890 | 2013 | 2021 | 2024
Strong acceleration of the demise of the largest French glacier over last few years! 🧊🔥
Impressive full moon rising behind the Aiguilles de Chamonix tonight, casting their shadows! 🌕🏔️
📷 Cham doc
Los Tres Glacier few days ago! (Chaltén, Patagonia)! 🤩
Snapshot of current state of Patagonian glaciers after a dry winter and a warm summer! 🧊 🔥
Los Tres gl. shows avalanches of rock and ice and no accumulation zone, with entire glacier melting! 💧
Drone survey by Andrés Lo Vecchio (Ianigla) 🙏
Sarenne Glacier (Grandes Rousses, Alpe d'Huez)
1906 | 2025
Sarenne Glacier has gone few years ago (~2023)! ✝️
In July 1965, it was the 1st summer ski site in France! ⛷️
This is the future of all Alpine glaciers this century!
You can't say you didn't know...🧐
📷 G. Flusin/E. Thibert via PNE
France just experienced its 4th warmest winter since 1900, with an anomaly of +1.71°C compared to the 1991-2020 norm! 🌡️📈
Only 18 days below normal (same duration as the 2019-2020 winter, the warmest ever recorded)!
Data @meteofrance.com Via @MystereMeteo
Mer de Glace
13th Oct. 2024
Unreal colours at sunset on the bed of the Mer de Glace, where now only a thin trickle of ice flows... 🧊😢
Azufre Glacier (Mendoza Province, ARG)
2016 | 2026
Perfectly shows the recent acceleration of glacier loss in the Dry Andes (red outlines=2000)! 🧊🔥😱
Azufre Gl. spans 3700 to 3000 m asl, near the Peteroa volcano (4113 m asl) 🏔️
www.ianigla.mendoza-conicet.gob.ar/bases/banco/...
Image Via @Snowcop
2nd warmest winter in conterminous US since at least 1895 (PRISM data)🌡️🇺🇸
Via @climatologist49.bsky.social
Siviez,2150 m asl (Nendaz, Valais)😲
Intra-winter melt episode! ❄️🔥
One week apart (21th feb. - 1st march) snowcover showing the extent of snow melt at high elevation following iso 0°C above 3000 m asl
📷 Loïc Giaccone
The oldest marked ibex in Vanoise NP has passed away! 🐐🏔️
At 19 yo, he had reached a ripe old age for a male ibex and provided 13 yrs of tracking data, resulting in 310 observations (2/month) showing his territory was fairly limited (Villarodin Bourget and Avrieux) 🗺️
Via Yoann Caillot
Winter temperature in Austria 🇦🇹📈
1767 |2026
Via @manu_oberhuber
Melt avalanche reaching almost Les Étages hamlet (1650 m asl) one week ago (Vénéon Valley, Ecrins massif)! ❄️😲
📷 J-M Rochette
Alpine glacial geomorphology treasure, the moraines of Tsijiore Nouve Gl.! 🧊🥰
Check this paper for tree-ring dating of the LIA maximum: researchgate.net/publication/...
and this one for TCN dating of these Holocene moraines: researchgate.net/publication/...
DEM courtesy M. van der Valk 🙏
Today's view of large melt avalanches in the Vénéon Valley, just above Les Etages (1650 m asl, Ecrins massif)! ❄️🔥
The peak in the background is the Dôme des Ecrins (4,015 metres asl) 🏔️
📷 Félix de Montety 🙏
On Feb. 17th, a rock avalanche occurred in the E face of Cordón Adela (2938 m asl, next to Cerro Torre) over Grande Glacier!
The drought and heat waves this summer in Patagonia are undoubtedly contributing factors 🧊🔥
📷@patagoniavertical and @amigospnlosglaciares
Pico de Orizaba (5 675 m asl, Mexico) yesterday! 🤩
What you see here is “Glaciar Norte” (~0.3 km²), Mexico's last glacier and the only one located at 19° N in the world!
In an extremely rapid withdrawal phase! 🧊🔥
www.sciencedirect.com/science/arti...
📷 Laura González del Castillo
Surely my favorite view in the Alps! 🥰
The one that grabs you by the gut,
As you know you're witnessing - from aside - something big and moving!
Aletsch's curve, the quintessential experience of an Alpine ice stream!
Even better with bad weather! 🌧️
⏲️ 20th Oct. 2022
🎞️ Portra 400
📷 Pentax MX
Nice piece of the @nytimes.com covering the paper 'Forest-floor burial in 1507 by the largest Mount Rainier lahar of the past millennium' 🌊
Tree rings tell you about the past! 🌲💍
www.nytimes.com/2026/01/16/s...
Airborne GPR to model the Girose-Mont de Lans Glacier (Ecrins massif)! 🧊🛰️
- 40 km scan over 2 days
- Ice thickness mapping
- Bathymetry of the lake upstream of the Girose Gl.
- Analysis of relationship between the Girose Gl. and lake upstream
- Detection of intra-glacial channels
Survey: Geolithe
ABSURD WINTER HEAT IN FRANCE! 🔥🥵
This Friday - and for 3rd day in a row - temperatures will again be 7 to 10°C (or even 12°C) above normal from the southwest to the northeast!
Highs of 23-24°C are forecast in Auvergne => temperatures typical of early June!
Via @MeteoExpress
Analog flavour of one of my fav moraine complexes in the Alps, Tsijiore Nouve Gl.! 🧊
Check this paper for tree-ring dating of the LIA:
www.researchgate.net/publication/...
and this one for TCN dating of the Holocene:
www.researchgate.net/publication/...
⏲️ 4th Oct. 2022
🎞️ Portra 400
📷 Pentax MX
Ah je suis rassuré! (non) 😅🤪
21.1°C in Chamonix today! 🔥🥵
A monthly record for February since at least 1880! 🌡️
Words truly fail to describe such early heatwaves, which are so out of season and detrimental to ecosystems.
Map via @sergezaka.bsky.social
Analog flavour of the Mont Blanc's perfect architecture after a scorching hot (and still record) summer! 🧊🔥
⏲️ 12th Sept. 2022
🎞️ Portra 400
📷 Pentax MX
