Sabitlenmiş Tweet
Still at #merdeglace for Day 6 of #7daysoffieldwork to celebrate 10 years of sampling and ~400 subfossil wood samples retrieved from this single moraine ! 🌲💍
#treerings #fieldwork #chamonix
English
Melaine Le Roy
7.4K posts
Melaine Le Roy
@subfossilguy
Assiduous dendroglaciologist, moraine lover, wandering geomorphologist, living in the Holocene, climate (and eco-) anxious, @edytem_fr
Katılım Ocak 2020
1.5K Takip Edilen9.2K Takipçiler
On 21st March, there will be a tribute to the Mer de Glace, featuring a concert in the ice cave and talks by a glaciologist! 🧊🎶
Don’t miss it if you’re in the area! 😍
English
The headwaters of the Upper Romanche, dominated by the Grande Ruine (3,765 m) 🏔️
The faint ridge visible in the foreground on the left is a moraine deposited by the Romanche Glacier we dated to the Younger Dryas (~12,000 years ago) 🧊⏱️
English
Cryospheric geomorphology is amazing! 😍
Here is a delicately carved Neoglacial moraine (Réou d'Arsine Gl.), the lower part of which has evolved into a magnificent rock glacier with concentric lobes 🧊🌊
The whole being heavily laden with snow, even on the steepest sections! ❄️
English
Arsine Glacier yesterday! 🥰
One of my fav site in the Alps (not biased opinion) 🤍
A perfect cirque and headwall 🏔️
A fantastic and continuous moraine complex 🧊
A record of Holocene glacier advances (and RAs) now TCN-dated ⏱️
See our paper here:
sciencedirect.com/science/articl…
English
La Meije (3, 983 m asl) catching the last rays tonight! 🏔️😍
English
@elnabogordo That's true!
(I should have writtent 'Alps' instead of 'Europe' here!)
But Aegypius monachus don't breed at high altitudes in the Alps!
It was only very recently that they were reintroduced to the southern French Alps (the Baronnies), which are hilly regions!
English
@subfossilguy Aunque el Quebrantahuesos (Gypaetus barbatus) sea de mis aves favoritas, no se trata del mayor ave en envergadura de Europa. El buitre negro (Aegypius monachus) que también puede observarse en invierno en Alpes es más grande ;)
Español
Seeing Europe's largest bird soaring through the ominous sky above Mer de Glace really gives you goosebumps! 🥰🦅
English
Walking on Mer de Glace yesterday (here at 1900 m) after starting from valley very bottom (no cable car)! 🏔️
Breaking the trail in heavy/deep snow, struggling every single step through a labyrinth of huge boulders and reluctant alders, hiding deep holes! ❄️👣
La Vie, la Vraie!
English
DEMs Data source: zenodo.org/records/108170…
Belvedere Glacier is also famous for moraine instabilities (see e.g. karolinum.cz/data/clanek/13…).
A recent massive rock avalanche also occurred in its vicinity one year ago (see x.com/subfossilguy/s…)
2/
Melaine Le Roy@subfossilguy
Incredible drone footage of the massive rock avalanche that started at Colle delle Locce (3334m), E of Punta Tre Amici, onto Locce Gl./Lake, Zamboni Zappa Hut, Belvedere Gl. and upper Macugnaga resort (Mte Rosa massif, IT) during last fri/saturday night! 🪨❄️😱 🎥Luca Tondat/IG
English
Belvedere Glacier (Macugnaga, IT)
2015 | 2023
This debris-covered glacier flows on E side of Monte Rosa 🧊🏔️
Here we see, based on UAV photogrammetry, the recent downwasting of the tongue, as well as moraine sliding on the glacier-proximal side (upper left)
📽️ Alex Ferrier
1/
English
On 14th March, an impressive rock avalanche occurred on Cotopaxi (5,897 m asl, EC)! 🔥
A rock mass detached from the Yanasacha summit cliff and triggered an ice avalanche on the glacier! 🌊🧊
Deposit spans ~1000 vertical distance btw 5,700 and 4,700 m asl! 😲
📷 Pablo Chiquiza
English
@subfossilguy Could you please specify the altitude and location of the current front of the Mer de Glace?
English
This was the very front of Mer de Glace yesterday (15th March)! ❄️
Ice outcrop is visible at the foreground!
Having travelled all this way from accumulation zone (11 km), ice is ~500 yrs old at this spot, where its journey ends...🧊
Charmoz are playing hide&seek at the back! 🏔️
English
@david_belay As I have scrambled up from the very botom (Les Tines) I has snowhoes, but this was clearly not the best tool. In fact all this hike up via Le Chapeau is made up of large boulder fields hiding big holes... very painful!
English
@subfossilguy Wow, did you walk with snowshoes? Or did you ski?
English
@EcoRXChampion Yes, of course.
These are extremes fueled by record sea surface temperatures
But there will always be idiots to tell you that this proves global warming isn’t happening, even though in a week’s time there won’t be a trace of it left as winter heatwaves are now becoming frequent
English
@subfossilguy Incredible snowfall! We're seeing these extremes intensify with climate instability. Stunning but a worrying trend. ❄️
English
This winter the heaviest snow events have concerned the southern fringe of the Alps! ❄️
Remember Prato Nevoso in Dec!
Latest example here at Macugnaga, at the foot of Monte Rosa east face, with 1.48 m in 24h at 1,360m asl! 😲
English
The mighty Aiguilles de Chamonix (Charmoz, Blaitière, Plan) on 15th March! 🏔️🏔️🏔️
Always a reason to look up, craning your neck 🤩
English
Dome du Gouter (4,304 m asl) unveiling this morning with stong wind in altitude! 🏔️❄️🤩
English
@AkimOmiri Tellement regardé les Nous C Nous étant ado!
Ca a participé à ma construction
Bon voyage Bruno.
Français
Il a fait parti des gens qui m’ont donné envie de faire rire avec ses perso dans les Nous C Nous. J’avais eu la chance de le voir sur scène à Paris. Repose en paix
Little Think Tank@L_ThinkTank
[ 🇫🇷 FRANCE ] ⚫️Le comédien Bruno Salomone est décédé à l’âge de 55 ans (agent à l’AFP).
Français