Lomdumtblanc
@lomdumtblanc.bsky.social
Infatigable arpenteur de la montagne
Reposted by Lomdumtblanc
December 27, 2025 at 8:56 PM
Reposted by Lomdumtblanc
On 20th Dec. in the morning, a huge aerosol caused by the break-up of a serac from the Aiguille Verte summit ice cap ran down the Cordier couloir and ended up on Argentière Glacier! 😮🧊❄️
📽️ Thomas Lebas
📽️ Thomas Lebas
December 22, 2025 at 8:12 PM
On 20th Dec. in the morning, a huge aerosol caused by the break-up of a serac from the Aiguille Verte summit ice cap ran down the Cordier couloir and ended up on Argentière Glacier! 😮🧊❄️
📽️ Thomas Lebas
📽️ Thomas Lebas
Reposted by Lomdumtblanc
Spectacular frontal view of Argentière Glacier 🧊🔥
July 2024
Argentière Gl. spans 3600 to 2100 m (ice cliff below 👇) and was 11 km² in 2022
See this recent paper to find out how Saharan dust influences its mass balance ❄️🏜️
egusphere.copernicus.org/preprints/20...
📷 Sean Gallup/Getty images
July 2024
Argentière Gl. spans 3600 to 2100 m (ice cliff below 👇) and was 11 km² in 2022
See this recent paper to find out how Saharan dust influences its mass balance ❄️🏜️
egusphere.copernicus.org/preprints/20...
📷 Sean Gallup/Getty images
December 21, 2025 at 12:31 PM
Spectacular frontal view of Argentière Glacier 🧊🔥
July 2024
Argentière Gl. spans 3600 to 2100 m (ice cliff below 👇) and was 11 km² in 2022
See this recent paper to find out how Saharan dust influences its mass balance ❄️🏜️
egusphere.copernicus.org/preprints/20...
📷 Sean Gallup/Getty images
July 2024
Argentière Gl. spans 3600 to 2100 m (ice cliff below 👇) and was 11 km² in 2022
See this recent paper to find out how Saharan dust influences its mass balance ❄️🏜️
egusphere.copernicus.org/preprints/20...
📷 Sean Gallup/Getty images
Reposted by Lomdumtblanc
Argentière Glacier front
June 2025
Overview of a dying (former) ice front of one of major Alpine glaciers during last June crazy heatwave! 🧊🔥
The dead ice lowest point is ~1650 m and the ice cliff at the background - which hardly feeds it anymore - is ~2200 m asl 😨
June 2025
Overview of a dying (former) ice front of one of major Alpine glaciers during last June crazy heatwave! 🧊🔥
The dead ice lowest point is ~1650 m and the ice cliff at the background - which hardly feeds it anymore - is ~2200 m asl 😨
December 21, 2025 at 1:11 PM
Argentière Glacier front
June 2025
Overview of a dying (former) ice front of one of major Alpine glaciers during last June crazy heatwave! 🧊🔥
The dead ice lowest point is ~1650 m and the ice cliff at the background - which hardly feeds it anymore - is ~2200 m asl 😨
June 2025
Overview of a dying (former) ice front of one of major Alpine glaciers during last June crazy heatwave! 🧊🔥
The dead ice lowest point is ~1650 m and the ice cliff at the background - which hardly feeds it anymore - is ~2200 m asl 😨
Reposted by Lomdumtblanc
December 18, 2025 at 12:37 PM
Reposted by Lomdumtblanc
Subfossil spruce
Bossons Glacier
80-253 CE
Tree buried during an early glacier advance post Roman Warm Period 🧊🌲💍
Repeated phases with compression wood show this tree lived in a dynamic environment (avalanches, landslides?) ❄️💧
#ILoveTreeRings
Bossons Glacier
80-253 CE
Tree buried during an early glacier advance post Roman Warm Period 🧊🌲💍
Repeated phases with compression wood show this tree lived in a dynamic environment (avalanches, landslides?) ❄️💧
#ILoveTreeRings
December 14, 2025 at 5:05 PM
Subfossil spruce
Bossons Glacier
80-253 CE
Tree buried during an early glacier advance post Roman Warm Period 🧊🌲💍
Repeated phases with compression wood show this tree lived in a dynamic environment (avalanches, landslides?) ❄️💧
#ILoveTreeRings
Bossons Glacier
80-253 CE
Tree buried during an early glacier advance post Roman Warm Period 🧊🌲💍
Repeated phases with compression wood show this tree lived in a dynamic environment (avalanches, landslides?) ❄️💧
#ILoveTreeRings
Reposted by Lomdumtblanc
December 13, 2025 at 8:40 PM
Reposted by Lomdumtblanc
A clear path! 🤩
When the wood is full of resin and sticky, sanding doesn't allow the tree rings to be seen clearly enough 🧐
It is then necessary to make a path with a razor blade filled with chalk 🔬
Mer de Glace stone pine (300-500 CE) killed during the so-called 'Late Antique Little Ice Age' 🧊🥶
When the wood is full of resin and sticky, sanding doesn't allow the tree rings to be seen clearly enough 🧐
It is then necessary to make a path with a razor blade filled with chalk 🔬
Mer de Glace stone pine (300-500 CE) killed during the so-called 'Late Antique Little Ice Age' 🧊🥶
December 10, 2025 at 5:43 PM
A clear path! 🤩
When the wood is full of resin and sticky, sanding doesn't allow the tree rings to be seen clearly enough 🧐
It is then necessary to make a path with a razor blade filled with chalk 🔬
Mer de Glace stone pine (300-500 CE) killed during the so-called 'Late Antique Little Ice Age' 🧊🥶
When the wood is full of resin and sticky, sanding doesn't allow the tree rings to be seen clearly enough 🧐
It is then necessary to make a path with a razor blade filled with chalk 🔬
Mer de Glace stone pine (300-500 CE) killed during the so-called 'Late Antique Little Ice Age' 🧊🥶
Well done! Good job! Awesome, but a little bit weird...
youtu.be/Rvd_3aueuPA
youtu.be/Rvd_3aueuPA
EXCURSION A LA MER DE GLACE DURANT LA BELLE EPOQUE
YouTube video by Christine BOYMOND LASSERRE
youtu.be
December 4, 2025 at 6:01 PM
Well done! Good job! Awesome, but a little bit weird...
youtu.be/Rvd_3aueuPA
youtu.be/Rvd_3aueuPA
Reposted by Lomdumtblanc
Dreamy snowscape from the slopes of Mont Buet (3,096 m asl) towards Aiguille Verte, Grandes Jorasses and Mont Blanc today! 🏔️🤩
📷 @lomdumtblanc.bsky.social 🙏
📷 @lomdumtblanc.bsky.social 🙏
November 29, 2025 at 1:23 PM
Dreamy snowscape from the slopes of Mont Buet (3,096 m asl) towards Aiguille Verte, Grandes Jorasses and Mont Blanc today! 🏔️🤩
📷 @lomdumtblanc.bsky.social 🙏
📷 @lomdumtblanc.bsky.social 🙏
Reposted by Lomdumtblanc
I just tree ring dated this large stone pine cookie sampled in 2024 below the Argentière Glacier lateral moraine 🌲💍
It dates the Bronze Age Advance Period of this glacier to 1553+ BCE, which is conform to other calendar dates we have in the Alps at ~1550-1540 BCE (Mer de Glace and Gepatsch) 🧊⏱️
It dates the Bronze Age Advance Period of this glacier to 1553+ BCE, which is conform to other calendar dates we have in the Alps at ~1550-1540 BCE (Mer de Glace and Gepatsch) 🧊⏱️
November 26, 2025 at 7:47 PM
I just tree ring dated this large stone pine cookie sampled in 2024 below the Argentière Glacier lateral moraine 🌲💍
It dates the Bronze Age Advance Period of this glacier to 1553+ BCE, which is conform to other calendar dates we have in the Alps at ~1550-1540 BCE (Mer de Glace and Gepatsch) 🧊⏱️
It dates the Bronze Age Advance Period of this glacier to 1553+ BCE, which is conform to other calendar dates we have in the Alps at ~1550-1540 BCE (Mer de Glace and Gepatsch) 🧊⏱️
Reposted by Lomdumtblanc
Ski lift operators are commiting what amounts to environmental crimes! 🤬
Since 2024, SATA which operates Deux Alpes ski area has levelled Mont De Lans Glacier and filled in a 2000 m² new glacial lake that had appeared around 2010... without any authorisation!
📷 GoogleEarth
1/
Since 2024, SATA which operates Deux Alpes ski area has levelled Mont De Lans Glacier and filled in a 2000 m² new glacial lake that had appeared around 2010... without any authorisation!
📷 GoogleEarth
1/
November 17, 2025 at 1:02 PM
Ski lift operators are commiting what amounts to environmental crimes! 🤬
Since 2024, SATA which operates Deux Alpes ski area has levelled Mont De Lans Glacier and filled in a 2000 m² new glacial lake that had appeared around 2010... without any authorisation!
📷 GoogleEarth
1/
Since 2024, SATA which operates Deux Alpes ski area has levelled Mont De Lans Glacier and filled in a 2000 m² new glacial lake that had appeared around 2010... without any authorisation!
📷 GoogleEarth
1/
Reposted by Lomdumtblanc
From Chamonix to the Mer de Glace (Géant seracs) with raw LiDAR data from IGN viewed with PurpleGeo 😲 🤩
6 Billions of points.
Zero textures
Raw LiDAR, instantly understandable.
Source: Alex Ferrier
6 Billions of points.
Zero textures
Raw LiDAR, instantly understandable.
Source: Alex Ferrier
November 5, 2025 at 10:45 PM
From Chamonix to the Mer de Glace (Géant seracs) with raw LiDAR data from IGN viewed with PurpleGeo 😲 🤩
6 Billions of points.
Zero textures
Raw LiDAR, instantly understandable.
Source: Alex Ferrier
6 Billions of points.
Zero textures
Raw LiDAR, instantly understandable.
Source: Alex Ferrier
Reposted by Lomdumtblanc
Early morning today towards Tour Glacier - now barely visible from the valley - from around Tré le Champ! 😍❄️
📷 @lomdumtblanc.bsky.social
📷 @lomdumtblanc.bsky.social
November 1, 2025 at 2:09 PM
Early morning today towards Tour Glacier - now barely visible from the valley - from around Tré le Champ! 😍❄️
📷 @lomdumtblanc.bsky.social
📷 @lomdumtblanc.bsky.social
Reposted by Lomdumtblanc
UTTERLY SURREAL LOW ANGLE GLACIER SLIDE!! 😮😱
On Saturday at 11:00 am, a 2 km-long, 25 m-high, and 150-200 m in width section detached off the Ismoil Somoni Glacier (Tajikistan) and slid down the gorge! 🧊🌊
asiaplustj.info/en/node/354309
📽️ via @volcaholic1
On Saturday at 11:00 am, a 2 km-long, 25 m-high, and 150-200 m in width section detached off the Ismoil Somoni Glacier (Tajikistan) and slid down the gorge! 🧊🌊
asiaplustj.info/en/node/354309
📽️ via @volcaholic1
October 28, 2025 at 4:10 PM
UTTERLY SURREAL LOW ANGLE GLACIER SLIDE!! 😮😱
On Saturday at 11:00 am, a 2 km-long, 25 m-high, and 150-200 m in width section detached off the Ismoil Somoni Glacier (Tajikistan) and slid down the gorge! 🧊🌊
asiaplustj.info/en/node/354309
📽️ via @volcaholic1
On Saturday at 11:00 am, a 2 km-long, 25 m-high, and 150-200 m in width section detached off the Ismoil Somoni Glacier (Tajikistan) and slid down the gorge! 🧊🌊
asiaplustj.info/en/node/354309
📽️ via @volcaholic1
Reposted by Lomdumtblanc
October 5, 2025 at 6:10 PM
Reposted by Lomdumtblanc
Mont Maudit (4 465 m) tonight! 🤩
October 5, 2025 at 6:25 PM
Mont Maudit (4 465 m) tonight! 🤩
Reposted by Lomdumtblanc
Bossons Glacier is burning tonight! 🔥
October 5, 2025 at 6:38 PM
Bossons Glacier is burning tonight! 🔥
Reposted by Lomdumtblanc
Aiguille and Dôme du Goûter tonight! 😍
October 5, 2025 at 6:55 PM
Aiguille and Dôme du Goûter tonight! 😍
Reposted by Lomdumtblanc
This is the only tree I found embedded in a moraine that shows a pre-existing cut mark! 🤔🌲⛏️
This means that this tree was felled by people and then (shortly afterwards?) buried by the glacier during a major advance (LIA)! 🧊🌊
Obviously, this can only happen in the Chamonix Valley (Bossons here)! ⛪
This means that this tree was felled by people and then (shortly afterwards?) buried by the glacier during a major advance (LIA)! 🧊🌊
Obviously, this can only happen in the Chamonix Valley (Bossons here)! ⛪
October 3, 2025 at 8:12 PM
This is the only tree I found embedded in a moraine that shows a pre-existing cut mark! 🤔🌲⛏️
This means that this tree was felled by people and then (shortly afterwards?) buried by the glacier during a major advance (LIA)! 🧊🌊
Obviously, this can only happen in the Chamonix Valley (Bossons here)! ⛪
This means that this tree was felled by people and then (shortly afterwards?) buried by the glacier during a major advance (LIA)! 🧊🌊
Obviously, this can only happen in the Chamonix Valley (Bossons here)! ⛪
Reposted by Lomdumtblanc
Sanding a 3800 yr-old Cembran pine cookie from Mer de Glace at sunset! 🥰🌲💍
September 30, 2025 at 8:26 PM
Sanding a 3800 yr-old Cembran pine cookie from Mer de Glace at sunset! 🥰🌲💍
Reposted by Lomdumtblanc
What trees can tell ? 🌲💍🥰
This small cembran pine found in the Argentière Glacier lateral moraine has likely grew in a steep slope (avalanche couloir) and had a perturbated life, struggling to maintain apical growth (orange compression wood, R)! 💪
1/
This small cembran pine found in the Argentière Glacier lateral moraine has likely grew in a steep slope (avalanche couloir) and had a perturbated life, struggling to maintain apical growth (orange compression wood, R)! 💪
1/
September 27, 2025 at 7:01 PM
What trees can tell ? 🌲💍🥰
This small cembran pine found in the Argentière Glacier lateral moraine has likely grew in a steep slope (avalanche couloir) and had a perturbated life, struggling to maintain apical growth (orange compression wood, R)! 💪
1/
This small cembran pine found in the Argentière Glacier lateral moraine has likely grew in a steep slope (avalanche couloir) and had a perturbated life, struggling to maintain apical growth (orange compression wood, R)! 💪
1/
Reposted by Lomdumtblanc
📣 Find my interview today on Rhône FM here! 👇📻
Many thanks to Oriane Binggeli for her interest in the project! 🙏
www.rhonefm.ch/valais/fonte...
Many thanks to Oriane Binggeli for her interest in the project! 🙏
www.rhonefm.ch/valais/fonte...
Fonte des glaciers : des forêts ancestrales millénaires refont surface
Des troncs de plusieurs milliers d'années, libérés par la fonte des glaciers et l’érosion des moraines, livrent des indices uniques sur notre climat. Le | Rhône FM, la radio de l'info en Valais
www.rhonefm.ch
September 25, 2025 at 4:57 PM
📣 Find my interview today on Rhône FM here! 👇📻
Many thanks to Oriane Binggeli for her interest in the project! 🙏
www.rhonefm.ch/valais/fonte...
Many thanks to Oriane Binggeli for her interest in the project! 🙏
www.rhonefm.ch/valais/fonte...
Reposted by Lomdumtblanc
📣 Tune in tomorrow to Rhone FM to hear me all day long! 📻
You can listen to excerpts from my interview about subfossil wood and glaciers, and why recovering them is so important today...and without delay! 🧊📈⌛
Many thanks to Oriane Binggeli for her professionalism and interest in the project! 🙏🙏🙏
You can listen to excerpts from my interview about subfossil wood and glaciers, and why recovering them is so important today...and without delay! 🧊📈⌛
Many thanks to Oriane Binggeli for her professionalism and interest in the project! 🙏🙏🙏
September 24, 2025 at 7:06 PM
📣 Tune in tomorrow to Rhone FM to hear me all day long! 📻
You can listen to excerpts from my interview about subfossil wood and glaciers, and why recovering them is so important today...and without delay! 🧊📈⌛
Many thanks to Oriane Binggeli for her professionalism and interest in the project! 🙏🙏🙏
You can listen to excerpts from my interview about subfossil wood and glaciers, and why recovering them is so important today...and without delay! 🧊📈⌛
Many thanks to Oriane Binggeli for her professionalism and interest in the project! 🙏🙏🙏
Reposted by Lomdumtblanc
Tré-la-Tête Glacier
1990s | 2025
Demise of the most 'secret' (fact already emphasised by Whymper in 1909!) large glacier of the Mont Blanc massif! 🏔️ 🧊
The icefall no longer exists and most of the left tributaries have broken off! 🔥
📷 Cesare Balbis and Lauriane Miara
1990s | 2025
Demise of the most 'secret' (fact already emphasised by Whymper in 1909!) large glacier of the Mont Blanc massif! 🏔️ 🧊
The icefall no longer exists and most of the left tributaries have broken off! 🔥
📷 Cesare Balbis and Lauriane Miara
September 21, 2025 at 12:56 PM
Tré-la-Tête Glacier
1990s | 2025
Demise of the most 'secret' (fact already emphasised by Whymper in 1909!) large glacier of the Mont Blanc massif! 🏔️ 🧊
The icefall no longer exists and most of the left tributaries have broken off! 🔥
📷 Cesare Balbis and Lauriane Miara
1990s | 2025
Demise of the most 'secret' (fact already emphasised by Whymper in 1909!) large glacier of the Mont Blanc massif! 🏔️ 🧊
The icefall no longer exists and most of the left tributaries have broken off! 🔥
📷 Cesare Balbis and Lauriane Miara