Melaine Le Roy Profile Banner
Melaine Le Roy Profile
Melaine Le Roy

@subfossilguy

5,249
Followers
1,658
Following
1,323
Media
4,260
Statuses

Assiduous dendroglaciologist, moraine lover, wandering geomorphologist, living in the Holocene, climate (and eco-) anxious, @edytem_fr

Joined January 2020
Don't wanna be here? Send us removal request.
Pinned Tweet
@subfossilguy
Melaine Le Roy
4 years
Still at #merdeglace for Day 6 of #7daysoffieldwork to celebrate 10 years of sampling and ~400 subfossil wood samples retrieved from this single moraine ! ๐ŸŒฒ๐Ÿ’ #treerings #fieldwork #chamonix
Tweet media one
Tweet media two
Tweet media three
Tweet media four
9
46
294
@subfossilguy
Melaine Le Roy
2 years
Scary picture from yesterday morning showing Ecrins massif, southern glaciated area in the Alps, looking south. It now looks like a desert (literally, rocks and brownish sahara sands brought by multiple dust events from last months) No more snow, desolation. Credit @davideasnicar
Tweet media one
63
1K
3K
@subfossilguy
Melaine Le Roy
4 years
The largest glacier in the Alps, Grosser Aletschgletscher, as seen from Belalp | 1856 to 2020
56
2K
3K
@subfossilguy
Melaine Le Roy
3 years
#Tschierva glacier and Piz #Bernina (4049 m a.s.l.) from Alp Ota (2257 m a.s.l.) 1895 | 2004 | 2021
28
992
2K
@subfossilguy
Melaine Le Roy
1 month
Venezuela is now ice-free! ๐Ÿฅต First American country to lose all its glaciers! ๐ŸงŠ๐Ÿ“ˆ 2 ha Humboldt Gl. (here 2024 | 2008) is now static and was downgraded from glacier to ice field Next countries on the list: Indonesia, Mexico & Slovenia @extremetemps
Tweet media one
Tweet media two
80
795
1K
@subfossilguy
Melaine Le Roy
2 years
What did you do during the last 15 years? Mer de Glace did this...! This is exactly how long I have been working on this site. The moraine on the left is my main study site. Rate of lowering of the base-level, accelerated here, is stunning! (~80 m) Source @eb_climate_data
28
456
1K
@subfossilguy
Melaine Le Roy
22 days
To allow 600+ persons to have reached Everest summit (as of today), this is what the Base Camp on the Khumbu glacier looked like on 7th May... a proper city! ๐Ÿ˜ณ๐Ÿคฎ With all linked environmental problems when located at 5360m on debris-covered ice! ๐Ÿšฎ 1/ ๐ŸŽฅ Satkauskas Mindaugas
67
326
1K
@subfossilguy
Melaine Le Roy
2 years
Capanna del Forno (2574 m a.s.l.) and Vadrec del Forno Graubรผnden, Switzerland 1920 | 2021 #ClimateCrisis #ClimateActionNow
24
462
1K
@subfossilguy
Melaine Le Roy
2 years
Glacier Blanc, ร‰crins Massif, French Alps 1995 | 2022 This summer Glacier Blanc has lost 3.40 metres of ice over its entire surface (average of 1.10 metres over the last ten years). At 2900 m asl, 10cm of ice melted daily, even at night! Credit @PnEcrins @bastamedia_
15
639
1K
@subfossilguy
Melaine Le Roy
10 months
'Glacier funeral' ceremonies are increasing but yesterday's one at Sarennes Gl. was partially prevented from taking place because @alpedhuez didn't like the publicity! ๐Ÿ‘Ž Sarennes was 1st ๐Ÿ‡ซ๐Ÿ‡ท summer ski glacier in 1970 and is now... gone! Pic @INRAE_France (1906-2016) 1/
Tweet media one
Tweet media two
Tweet media three
Tweet media four
18
444
1K
@subfossilguy
Melaine Le Roy
1 month
Impressive stratigraphy visible in the seracs of the Mt Blanc du Tacul (4248 m asl) north face! โ„๏ธโณ๏ธ The record of February 2021 major saharan dust event is just mind-blowing! Pic. M. Colonel
Tweet media one
19
200
941
@subfossilguy
Melaine Le Roy
2 years
Withdrawal of #Gepatschferner tongue this summer (Tirol, Austria) Look at this collapse feature! ๐Ÿ˜ฐ It is the second largest glacier in Austria by the way, and one of the site where #Holocene variations are the best constrained in the Alps Video @S_Haselberger
8
354
854
@subfossilguy
Melaine Le Roy
3 years
Mer de Glace from Signal Forbes (2200 m a.s.l.) 1890 | 2013
22
319
855
@subfossilguy
Melaine Le Roy
2 months
Gepatschferner (Kaunertal, Austria) 2020 | 2023 Disintegration of the frontal area of the 2nd largest Austrian glacier during last four summers (incl. 2 hottest on record)๐Ÿฅต๐Ÿ“ˆ Video @S_Haselberger
43
450
827
@subfossilguy
Melaine Le Roy
3 years
Mer de Glace 1890 | 2013 | 2021 This is how the 3rd largest glacier in the Alps is doing lately... #ClimateEmergency #Chamonix #MerDeGlace #COP26 #COP26Glasgow #NeverEndingWithdrawal
22
356
807
@subfossilguy
Melaine Le Roy
3 years
Mer de Glace 2008 | 2013 | 2021 Only 13 years... Larches are growing Lakes are filling Illusions are fading #Chamonix #MerDeGlace #Montenvers
27
358
713
@subfossilguy
Melaine Le Roy
2 years
Mer de Glace tonight... This used to be the the best view point on the glacier front, but there is almost nothing to see from here now
Tweet media one
24
151
663
@subfossilguy
Melaine Le Roy
3 months
Snow stratigraphic survey at Lago di Lod (2015 m asl, Valtournenche, Italy) โ„๏ธโณ๏ธ Well visible Saharan dust layers deposited between the morning and afternoon of Saturday 30th March, already overlaid by some 20 centimetres of fresh snow. Source @andreavuoloo
Tweet media one
5
133
637
@subfossilguy
Melaine Le Roy
10 months
Emptying of Suicide Basin which caused the #Mendenhall Glacier #GLOF downstream, Juneau, Alaska ๐ŸŒŠโ„๏ธ๐Ÿ”ฅ
12
195
619
@subfossilguy
Melaine Le Roy
9 months
81 hours without freezing...๐Ÿ”ฅ๐Ÿ”ฅ๐Ÿ”ฅ 81 hours... ๐Ÿ˜ฑ at 4554 m asl in the Alps 0ยฐC Isotherm at or > 5000 m ๐Ÿ”ฅ๐Ÿ”ฅ๐Ÿ”ฅ for 4 days now... This has never happened before, even in full summer Do you enjoy science fiction?๐Ÿ˜ญ #MonteRosa #CapannaMargherita #Payerne
Tweet media one
Tweet media two
Tweet media three
Tweet media four
11
234
516
@subfossilguy
Melaine Le Roy
2 months
Saharan dust layers deposited last saturday, here outcropping at 2310 m asl above Oberalppass (Central Switzerland)! โ„๏ธโณ Source @meteosuisse
Tweet media one
5
85
500
@subfossilguy
Melaine Le Roy
2 years
Clouds are Materhorn best friends today ๐Ÿ˜
Tweet media one
7
36
496
@subfossilguy
Melaine Le Roy
2 years
6 m.e.t.e.r.s !! This is what Aletsch glacier, the largest glacier in the Alps, lost this summer at Konkordiaplatz, the place where ice is the thicker in the Alps... This level of ice melt was simply unbelievable up to... last year
@matthias_huss
Matthias Huss
2 years
More than 6 meters of ice melt at Konkordiaplatz. Simply incredible. Something the climate scenarios had for the future. But now, we're already there... @VAW_glaciology
Tweet media one
41
995
2K
12
239
491
@subfossilguy
Melaine Le Roy
8 months
New mind-blowing record of thickness loss at Ossoue glacier (Pyrenees) in 2023: 5 m, beating the 2022 loss (4.51 m)! ๐Ÿ”ฅ Since 2002, average melting rate has been 2m/yr. Significant acceleration over the last 2 years. Ossoue will likely be gone by 2030. Source: P. Renรฉ (Moraine)
5
213
480
@subfossilguy
Melaine Le Roy
11 months
This...... FAN!!! ๐Ÿคฉ๐Ÿ˜ King Oscar Fjord, Eastern Greenland Little Ice Age extent of these two alpine glaciers roughly corresponds to the apex of the fan Pic: @EdmaierAerials
Tweet media one
3
72
453
@subfossilguy
Melaine Le Roy
2 years
Another stunning example of how permafrost thawing is making our mountains crumbling this summer... The La Fourche bivouac (3674 m asl), one of the most spectacular hut in the Alps, fell down, the remains of it are now scattered on the #Brenva glacier... Source @Montagne_Alpi
Tweet media one
8
148
417
@subfossilguy
Melaine Le Roy
24 days
'Yellow Band' (~7700 m) on Mt Everest (8848 m asl) 20th of May What an achievement! ๐Ÿ™ƒ Pulling yourself up on ropes fixed by sherpas and polluting all the floors of this mountain Magic is gone, even imaginary world has been destroyed! F**** circus! ๐Ÿคก R. Dwivedi ( @EverestToday )
34
97
409
@subfossilguy
Melaine Le Roy
1 year
What better way to start this year than with the pure, subtle and naive beauty of the pieces of Jean-Antoine Linck (1766-1843) He was a pioneering artist of the scientifically verifiable representation of high mountain areas from the end of the 19th c., a major breakthrough!๐Ÿ˜ 1/
Tweet media one
Tweet media two
Tweet media three
Tweet media four
8
53
408
@subfossilguy
Melaine Le Roy
1 month
Northern lights reflected on the snow covered roof of Europe, the Mont Blanc (4806 m asl) on 10th of May! ๐Ÿ˜ (๐Ÿ“ท Webcam Auguille du Midi, 3842 m asl)
Tweet media one
5
64
410
@subfossilguy
Melaine Le Roy
11 months
Current state (31st July) of #Aneto Glacier, Although a 'very small' glacier (0.47 kmยฒ), it is the largest in the Pyrenees, and the highest ๐Ÿ”๏ธโ„๏ธ Mean remaining ice thickness is about 11 m...๐Ÿ”ฅ It was 15 m in 2020 and 35 m in 1981 Let's do the math! ๐Ÿค” Pic: #GerardoBielsa 1/
Tweet media one
13
112
385
@subfossilguy
Melaine Le Roy
10 months
Mer de Glace from Signal Forbes ๐Ÿฅฐ 1890 | 2013 | 2021 Considerable thickness loss and increased debris cover ๐Ÿ˜ฑโ„๏ธ๐Ÿชจ (Thanks @Fijnweer for slowing down the frames) 1/
9
171
377
@subfossilguy
Melaine Le Roy
9 months
Yesterday another 'glacier funeral' ceremony took place. This time to alert on the fact that #Pasterze , largest Austrian remaining glacier, is about to lose connection to its accumulation area โ„๏ธ The tongue is turning into a dead-ice body which is going to melt even faster ๐Ÿ”ฅ 1/
Tweet media one
Tweet media two
Tweet media three
Tweet media four
8
153
368
@subfossilguy
Melaine Le Roy
9 months
Aneto (3404 m) and Aneto Glacier from Maladeta Peak (3312 m) ๐Ÿ”ฅโ„๏ธ late July 1983 | early August 2023 And yet this is by far the best profile of this glacier today! In enfilade you get the impression of a continuous ice body, which is no longer the case ๐Ÿ“ทLluis Diez Vilardebo
Tweet media one
10
175
363
@subfossilguy
Melaine Le Roy
8 months
Foehn time! ๐ŸŒฌ ๐Ÿฅต Almost 12ยฐC in Chamonix right now... There are actually 2 holes opening in Bossons Glacier tongue โ„๏ธ ๐Ÿ˜ฑ Definitely the beginning of the end for this natural monument admired by a few millions visitors every year.
Tweet media one
7
116
359
@subfossilguy
Melaine Le Roy
3 years
Walter Mittelholzer's #MerdeGlace 1919 aerial imagery 'aligned' with 2019 aerial pictures taken by @DJCAD researchers
9
140
356
@subfossilguy
Melaine Le Roy
7 months
First known photograph of the Matterhorn (and maybe even of a mountain)! ๐Ÿฅฐ Taken by John Hobbs and John Ruskin on 8th August 1849 from a viewpoint that was to become famous, Riffelsee
Tweet media one
5
60
347
@subfossilguy
Melaine Le Roy
5 months
DEVASTATING! ๐Ÿ˜ก๐Ÿฅต This what Pyrenees looks like above 2,000 m asl... early summer! Pic du Midi d'Ossau (2,884 m asl) at background @Meteo_Pyrenees
Tweet media one
11
89
342
@subfossilguy
Melaine Le Roy
9 months
Ice was still present on top of this stake (~7 m) hold by @matthias_huss one year ago! ๐Ÿ”ฅโ„๏ธ Another record ice loss year, close behind 2022, pictured here at Gries Glacier. These losses really mark a new era ๐Ÿ˜ฑ @CorsinManser Story here:
Tweet media one
12
134
316
@subfossilguy
Melaine Le Roy
2 months
Throwback to the former beauty of this now reshaped valley, which hosted most aesthetic Swiss glacier for me! ๐Ÿ—ปโ„๏ธ๐Ÿชจ #Tschierva glacier with Piz #Bernina (4049 m asl), Piz #Scerscen (3971 m asl) and Piz #Roseg (3937 m asl) as seen from Alp Ota (2257 m asl) 1895 | 2004 | 2021
8
121
319
@subfossilguy
Melaine Le Roy
2 years
Chardonnet (3824 m a.s.l.) seen from Trient glacier plateau, Mont Blanc massif 1985 | 2022 Pictures: O. Gavillet #DeIcing #Anthropogenic #ClimateCrisis
17
172
314
@subfossilguy
Melaine Le Roy
8 months
Good morning Aletsch! ๐Ÿ˜
Tweet media one
4
27
301
@subfossilguy
Melaine Le Roy
10 months
Pilatte Glacier, Ecrins Massif ๐Ÿฅฐ 2013 | 2023 This was a beautiful glacier, one of the largest in the Ecrins, perfectly shaped, occupying an entire cirque and emitting a small tongue Here's what's left.. ๐Ÿ˜ญ Soon there will be nothing but scattered patches at high altitude @liuco
Tweet media one
Tweet media two
11
78
305
@subfossilguy
Melaine Le Roy
2 months
Woww, brutal!! ๐Ÿ˜ฑ 7am, 14 April 2024, a large rock avalanche occurred on West face of Piz #Scerscen (3970m, Bernina) around 3600m ~1 million M3 and 5 km runout! As a frequent visitor to the covered area, just got goose bumps! Pic SAC Bernina @davepetley 1/
Tweet media one
7
70
297
@subfossilguy
Melaine Le Roy
2 years
Morning Mer de Glace! ๐Ÿฅฐ
Tweet media one
28
26
290
@subfossilguy
Melaine Le Roy
11 months
Projection of Mer de Glace (Mt Blanc) evolution according to a median scenario (~2ยฐC) โ„๏ธ๐Ÿ”ฅ MdG is the 4th largest glacier in the Alps (29 kmยฒ in 2015). @IGE_Grenoble @creamontblanc
Tweet media one
12
135
292
@subfossilguy
Melaine Le Roy
10 months
Ossoue Glacier 2000 | 2022 This is the largest glacier in the French Pyrenees and it has lost over the last two decades: 250 m length (11m/yr) 33 ha area (1.5ha/yr) 39 m thickness (1.8m/yr) Source (P. Renรฉ) @OssoueGlacier
Tweet media one
Tweet media two
8
146
281
@subfossilguy
Melaine Le Roy
10 months
A 700 m3 rock avalanche occurred at 5.15pm in Le Freney (Maurienne Valley, France) ๐Ÿ˜ณ ๐Ÿชจ The boulders crashed into the protective wall that had been put in place to prevent such events. A43 highway is closed.
9
133
272
@subfossilguy
Melaine Le Roy
10 months
Little Ice Age moraines of Mendenhall Glacier, Juneau, Alaska ๐Ÿ˜ DEM processing: @Fijnweer
Tweet media one
7
29
269
@subfossilguy
Melaine Le Roy
7 months
Matterhorn Gabriel Loppรฉ | 1867 Painted two years after Matterhorn first ascent, which is therefore no longer a terra incognita... Gorner, Theodul, Furgg and Zmutt Glaciers foreground to background.
Tweet media one
6
51
263
@subfossilguy
Melaine Le Roy
8 months
A random peak overlooking Humanity messy behaviour this morning ๐Ÿ˜
Tweet media one
9
18
249
@subfossilguy
Melaine Le Roy
2 years
One more... After Tour Ronde north face and La Fourche bivouac, Cosmiques arรชte at Aiguille du Midi entered the Great Thawing Circus on tuesday
10
77
248
@subfossilguy
Melaine Le Roy
10 months
Incredible picture of #Konkordiaplatz at #Aletsch Glacier ๐Ÿ˜ณ Hardly any snow left below 3300 m asl at the accumulation zone of the largest glacier in the Alps, owing to current heatwave ๐ŸŒก๏ธ Pic @Alpenweerman
Tweet media one
4
66
247
@subfossilguy
Melaine Le Roy
7 months
Gran Neyron Glacier 2000 | 2023 Valsavarenche (Gran Paradiso, Italy) @BerroDaniele
Tweet media one
3
76
239
@subfossilguy
Melaine Le Roy
5 months
Aiguille de Blaitiรจre (3522 m asl) tonight ๐Ÿ˜
Tweet media one
7
17
236
@subfossilguy
Melaine Le Roy
2 years
Always emotional to arrive at this very place...! ๐Ÿฅฐ All senses are saturated. Especially after hiking from the valley bottom (1900m vertical gain) Fore sure, the most famous curve in the Alps, and the view that does the most justice to our last Alpine ice stream.
Tweet media one
5
26
241
@subfossilguy
Melaine Le Roy
2 months
Mer de Glace this morning ๐Ÿ˜ฐ It remains a mystery to what extent private companies can be allowed to destroy the common good...๐Ÿคฌ This is the view you now have at one of the Alps' most famous site, disfigured by pylons! ๐Ÿ™Seb Guillet for the pic
Tweet media one
19
35
243
@subfossilguy
Melaine Le Roy
10 months
Map of Mont Blanc massif, 1:40โ€™000 ๐Ÿ˜ 1876 by Eugรจne Viollet-Le-Duc Surveyed 1868-1875 by the talented architect and scientist. First published in 1874. Despite lack of contour lines, one of the first accurate map of the Massif, which was criticised for its 'aestheticism' (!)
Tweet media one
6
42
237
@subfossilguy
Melaine Le Roy
6 months
Mont Blanc and Mer de Glace as seen from Grands Montets this morning ๐Ÿ˜ (Pic @guidemark )
Tweet media one
1
23
229
@subfossilguy
Melaine Le Roy
8 months
Mer de Glace, Dent du Gรฉant (4013 m, background) and Grands Charmoz (3445 m) this morning! ๐Ÿคฉ
Tweet media one
8
21
226
@subfossilguy
Melaine Le Roy
5 months
Lautaret chapelle and La Meije group this morning ๐Ÿฅฐ
Tweet media one
4
14
227
@subfossilguy
Melaine Le Roy
9 months
Distribution of summer heatwaves recorded in France since 1947. The curves represent the average daily temperature exceeding the threshold of 23.4ยฐC ๐Ÿ”ฅ @garydagorn
Tweet media one
15
87
227
@subfossilguy
Melaine Le Roy
2 months
Impressive aerial view of Aneto north face (top of Pyrenees, 3404 m asl) on 13th April with Saharan dust layer from last week โ„๏ธโ›ฑ๏ธ Pic Gerardo Bielsa @meteobenas
Tweet media one
4
48
229
@subfossilguy
Melaine Le Roy
3 years
Bossons Glacier 2008 | 2013 | 2021 #Bossons is surely the most impressive glacier in the Alps! It is the steepest (29ยฐ) 'big glacier' (12 kmยฒ), which is kind of anomaly! Always a key player in the #Chamonix Ice-scape, but about to retire these days... #COP26 #ClimateCrisis
8
81
224
@subfossilguy
Melaine Le Roy
2 years
Wallis giants this morning, Mischabels, Matterhorn and Weisshorn ๐Ÿคฉ
Tweet media one
4
18
222
@subfossilguy
Melaine Le Roy
11 months
Stunning 2021 aerial view of Mer de Glace ๐Ÿ˜ Lower tongue has thinned dramatically in recent years and turned into a heavily debris covered stagnant ice. Mountain landscapes are not a postcard to be shamelessly consumed. Find it beautiful? Care for climate! Pic @EdmaierAerials
Tweet media one
7
53
224
@subfossilguy
Melaine Le Roy
1 year
Snow cover in the Rhรดne basin (western Alps) just dropped below the lowest value since 1991 (and surely for much longer than that!) which was... 2022! Speechless... ...thinking about next summer drought and glacier mass balance ๐Ÿ˜ฅ Source: @sgascoin
Tweet media one
11
70
225
@subfossilguy
Melaine Le Roy
2 years
Incredible scenes due to record ice melt in the Alps this summer (Mont Fort Glacier, ca 2900 m asl, Verbier, VS) ๐Ÿฅต The glacier here has lost 4m60 in thickness since mid-May! Record melt expected this year in Switzerland, 3m instead of 1m in recent years... Source @SylvainBesson
Tweet media one
Tweet media two
5
103
219
@subfossilguy
Melaine Le Roy
9 months
Glittertind, Jotunheimen, Norway 1910 | 2023 Glittertind 'used to be' Scandinavia's highest mountain...! ๐Ÿ… Folowing entire melting of the summit ice cap, it has now retroceded to the 2nd place behind Galdhรธpiggen (2469 m) Crazy elevation loss: 2481 m to 2452 m!๐Ÿ˜ณ @brearkeologi
Tweet media one
9
69
219
@subfossilguy
Melaine Le Roy
10 months
Good morning Aletsch! โ„๏ธ๐Ÿฅฐ 10ยฐC colder than 3 days ago at the same time... (๐Ÿ“ทWebcam Konkordiahรผtte)
3
24
218
@subfossilguy
Melaine Le Roy
10 months
Mont Blanc massif today! โ„๏ธ๐Ÿ”ฅ Totall dry conditions with the current heatwave. No firn below ~3100 m on Mer de Glace accumulation basin (Gรฉant Gl., centre) Safe to say that, this is bad... ๐Ÿ˜ฐ Pic @DaviFaranda
Tweet media one
8
69
218
@subfossilguy
Melaine Le Roy
2 months
The enormous and deadly 2017 Piz #Cengalo rock avalanche - one of the largest event in the Alps in recent past - had been caught on close-range video (Credit Reto and Barbara Salis, hut wardens at Sciora hut, 2120 m asl) ๐Ÿชจ๐ŸงŠ๐ŸŒŠ
3
58
214
@subfossilguy
Melaine Le Roy
2 years
@subfossilguy
Melaine Le Roy
3 years
Mer de Glace 1890 | 2013 | 2021 This is how the 3rd largest glacier in the Alps is doing lately... #ClimateEmergency #Chamonix #MerDeGlace #COP26 #COP26Glasgow #NeverEndingWithdrawal
22
356
807
1
42
208
@subfossilguy
Melaine Le Roy
5 months
Mont Blanc from Pic Blanc du Galibier (2955 m asl) tonight ๐Ÿฅฐ
Tweet media one
3
20
208
@subfossilguy
Melaine Le Roy
5 months
Les Aiguilles de Chamonix tonight ๐Ÿ˜
Tweet media one
2
11
205
@subfossilguy
Melaine Le Roy
2 years
Withdrawal of #Gepatschferner tongue (Tirol, Austria) over the last 3 years ๐Ÿ˜ฐ Thinning and discharge is just mind-blowing in 2022! ๐Ÿฅต It is the 2nd largest glacier in Austria, and one of the site where #Holocene variations are best known in the Alps Video via @S_Haselberger
3
83
206
@subfossilguy
Melaine Le Roy
9 months
Rhรดne Glacier 2022 | 2023 Such retreat rates are just beyond comprehension ๐Ÿ”ฅ Anybody who tells you otherwise has no idea what they're talking about. Pics: A. Cremona @VAW_glaciology @Enlaps_live @matthias_huss
6
94
206
@subfossilguy
Melaine Le Roy
2 months
32ยฐC at the foot of Pyrenees today! ๐Ÿฅต 24ยฐC min temp tomorrow and even more than 32 in the afternoon! This would be considered too hot in full summer... but we are early April!! Unbelievable... especially after 26 consecutive months above the norm. @SergeZaka
Tweet media one
42
96
207
@subfossilguy
Melaine Le Roy
6 months
Prognosis for glacier loss in the Alps is worse than previously thought! ๐Ÿ”ฅ Commited ice loss (=irrespective of any climate change) for 2050 amounts to 35%! As this is an absolute lower bound, in fact it will be more than 50%, only 2.5 decades from now ๐Ÿ˜ฑ
Tweet media one
17
118
206
@subfossilguy
Melaine Le Roy
8 months
Rhรดne Glacier tonight ๐Ÿ˜ Thinner and thinner, Still majestic from above.
Tweet media one
3
19
200
@subfossilguy
Melaine Le Roy
10 months
Mer de Glace two days ago...๐Ÿ˜ญ The white tarps correspond approximately to the location of the new Montenvers lower station under construction, as close as possible to the remaining ice. As you can see, a bright future awaits can't-walk ice-hungry visitors! Pic @pinpinmag
Tweet media one
11
50
198
@subfossilguy
Melaine Le Roy
5 months
Les Aiguilles d'Arves (3514 m asl) from Pic Blanc du Galibier tonight ๐Ÿคฉ
Tweet media one
4
10
197
@subfossilguy
Melaine Le Roy
1 year
Lower Grindelwald Glacier (Bernese Alps) 1669 | 1748 | 1762 | 1775 It was the glacier reaching the lowest elevation in the Alps during the Little Ice Age (972 m asl) and the site with by far the oldest and richest pictorial documentation. ๐Ÿ˜ 1/
Tweet media one
Tweet media two
Tweet media three
Tweet media four
8
39
198
@subfossilguy
Melaine Le Roy
11 months
Oulettes de Gaube Glacier july 1978 | july 2023 Sheltered by the Vignemale north face (3298 m asl) this small avalanche fed glacier is the lowest of the whole Pyrenees chain (~2400 m asl) and will soon be gone... โ„๏ธ๐Ÿ”ฅ Right pic from yesterday (source: @Meteo_Pyrenees ) 1/
Tweet media one
Tweet media two
10
75
197
@subfossilguy
Melaine Le Roy
2 years
#Rockfalls in Goรปter couloir on #MontBlanc normal route two days ago due to anomalously high temp. this summer. #Go รปter and Tรชte Rousse mountain huts are now closed (!) since yesterday to stop use of the area... Video credit @RedactionRMB
4
50
196
@subfossilguy
Melaine Le Roy
5 months
Blazing Verte and Drus tonight! ๐Ÿฅฐ
Tweet media one
2
7
194
@subfossilguy
Melaine Le Roy
1 year
Morteratsch Glacier 1900 | 2022 We reconstructed the early Little Ice Age Maximum at this site during 14th century CE through tree ring dating of subfossil moraine wood GIF source: @VAW_glaciology @matthias_huss 1/
4
71
197
@subfossilguy
Melaine Le Roy
8 months
Glorious apparition of Les Drus this morning! ๐Ÿฅฐ
Tweet media one
3
19
190
@subfossilguy
Melaine Le Roy
1 year
Hard to believe that this is what some of the highest mountains in the Alps look like tonight, 31st of december... Aiguille Verte (4122 m asl) and Les Drus (3754 m asl) Snow cover is barely present below 2000 m here ๐Ÿ˜ณ #NoMoreWinter Pic: @guidemark
Tweet media one
1
28
194
@subfossilguy
Melaine Le Roy
2 years
Tonight from Konkordia hut ๐Ÿ˜
Tweet media one
6
8
191
@subfossilguy
Melaine Le Roy
1 month
Mont Blanc (4806 m asl) today! ๐Ÿ˜ North slope of Mt Blanc massif in majesty with Bossons (left) and Taconnaz (center) glaciers Bossons tongue looks atrophied and the hole appeared in summer 2023 as a result of 30 m thick. loss last 2 years is well visible Pic @EmilieJ16440547
Tweet media one
6
27
195
@subfossilguy
Melaine Le Roy
2 years
Piz Bernina (4049 m asl) through the prism of the collapsing Tschierva glacier tongue. Beauty out of Chaos.
Tweet media one
6
22
185
@subfossilguy
Melaine Le Roy
1 month
Full spring view from Vallorcine valley towards Mont Blanc massif giants today: Chardonnet (3824 m asl), Aiguille Verte (4122 m) and Mont Blanc (4806 m asl) ๐Ÿคฉ Fairly decent snowcover for the season in the western Alps with 225 cm at 2300 m asl โ„๏ธ Pic @EmilieJ16440547
Tweet media one
8
16
190
@subfossilguy
Melaine Le Roy
4 months
Besides Pyrenees, snow cover is at an all-time low in the the Alps too, close to an absolute minimum compared with a 30-year climatology (1991-2021) based on the work of @sgascoin โ„๏ธ๐ŸŒก๏ธ๐Ÿ˜ฑ App : Method:
Tweet media one
10
97
193
@subfossilguy
Melaine Le Roy
2 months
2 years (2022 and 2023) = 10% glacier LOSS in the Alps! ๐Ÿฅต๐Ÿ“ˆ O.N.L.Y. T.W.O. Y.E.A.R.S!๐Ÿ˜ฑ @CopernicusECMWF just released its European State Of The Climate report Check it out ๐Ÿ‘‰
Tweet media one
3
104
192
@subfossilguy
Melaine Le Roy
5 months
Aiguille du Midi (3842 m asl) right now ๐Ÿ˜
Tweet media one
2
10
188
@subfossilguy
Melaine Le Roy
2 months
Last 8 summers in the life of Pasterze, largest Austrian glacier โ„๏ธ๐Ÿฅต๐Ÿ“ˆ The tongue lost 203,5m for the year 2023 alone! Timelapse summers 2016-2023 Source: Timelapse: @glacionaut
5
69
188
@subfossilguy
Melaine Le Roy
4 months
W face of Mont Blanc emerging from a sea of clouds yesterday ๐Ÿ˜ Mt Blanc de Courmayeur is right to main summit The steep glacier is 'Mt Blanc gl.', one of Miage gl. main tributary (now disconnected from trunk body :( Aig. Blanche de Peuterey (right) ๐Ÿ“ทS. Perrault @Meteovilles
Tweet media one
3
32
186
@subfossilguy
Melaine Le Roy
2 months
Two days after the Piz #Scerscen rock avalanche an impressive overview of the detachment scar took by @matthias_huss today! ๐Ÿชจโ„๏ธ๐Ÿ˜ฒ This event totally reshaped the cliff and ice cover!
Tweet media one
4
47
186
@subfossilguy
Melaine Le Roy
11 months
Pasterze Glacier 2010 | 2021 Dislocation of the largest Austrian glacier over the last decade! โ„๏ธ๐Ÿ”ฅ A lake replaced the floodplain where numerous early Holocene subfossil woods were found since the 1990s. The tongue is no longer fed by any accumulation. 1/ Pics: @EdmaierAerials
Tweet media one
6
58
185
@subfossilguy
Melaine Le Roy
8 months
๐Ÿ”ฅNew paper alert!๐Ÿ”ฅ Just thrilled to see our new review paper on Holocene glacier variations in the Alps finally published! This comes 14 yrs after previous one by Ivy-Ochs et al (2009, QSR) My Tschierva pic made it to the cover of the book btw! โ„๏ธ 1/
Tweet media one
Tweet media two
2
35
177