Sad news in the Austrian media about the “death” of the Pasterze Glacier, once the largest in country. I went directly to this location at the start of my last sabbatical, as a pilgrimage of sorts. The #glacier was breath-taking, even if the signs of rapid retreat were overwhelming. Now the tongue of #ice in the valley has completely detached from the accumulation area higher up. Another indication of how dramatically things are changing in the #mountain #cryosphere
https://religion.orf.at/stories/3221071/

The Nuuk area in western Greenland (the type locality of #Sapphirine) is one of the places where sea level is falling! Not only is ice melting, uncovering new rocks and unloading the lithosphere, but the mass of ice that's missing no longer attracts the water, so it recedes. Read more at the Arctic Hub:
https://arctichub.gl/greenland-is-rising-literally/
#MinCup23 #Greenland #Cryosphere #SeaLevel

Can cast shadows be used to infer changes in glacier elevations? Yes, they can. Check out our new paper in The Cryosphere and this blog post: https://topotoolbox.wordpress.com/2023/08/24/shadows-reveal-changes-in-glacier-surface-elevations/
#Cryosphere #climatechange #glacier

Mountains Are Collapsing - A Swiss Mountain Peak Fell Apart, Sending 3.5 Million Cubic Feet Of Rock Into The Valley Below - Scientists Warn Climate Change Could Make More Mountains Crumble.
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https://www.businessinsider.com/mountains-switzerland-collapsing-from-permafrost-melt-2023-8 <-- shared media article
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#GIS #spatial #mapping #model #modeling #prediction #geology #engineeringgeology #massmovement #global #landslide #debrisflow #mudslide #mountain #cryosphere #glacier #snow #ice #permafrost #water #hydrology #rockfall #EuropeanAlps #europe #SouthernAlps #newzealand #andes #peru #indigeneous #firstnation #risk #hazard #publicsafety #climate #melting #snowandicemanagement #climatechange #landforms #change #geomorphology #globalwarming #IPCC #naturalhazard #geologichazards

Meltwater on Athabasca Glacier, #Alberta

#WaterfallWednesday #Cryosphere #JasperAlberta #Glacier

@davidho I have been tryign not to.
It was suggested to me yesterday that I should consider attending for some #Cryosphere outreach stuff this yea rin my capacity as #HorizonEurope project coordinator.

I would really rather not...

TopoPyScale: - A Python Package for Hillslope Climate Downscaling
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https://doi.org/10.21105/joss.05059 <-- shared paper
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#GIS #spatial #mapping #python #climatechange #development #energy #complexity #spatialanalysis #spatiotemporal #remotesensing #pythonfordatascience #model #modeling #global #reanalyses #resampling #topography #TopoPyScale #mountain #water #hydrology #geomorphology #cryosphere #glacier #glacial #atmosphere #datadensity #landsurface #opensource

Antarctica’s ‘landfast’ ice is dwindling and why that’s bad news. Wildlife depends on landfast ice.
https://theconversation.com/fractured-foundations-how-antarcticas-landfast-ice-is-dwindling-and-why-thats-bad-news-207814
Emperor #Penguins #Cryosphere #FossilFuels #ClimateAction

❄️🌍 The cryosphere plays a crucial role in our planet's climate balance. Discover why it's so important and what's at stake. 👇

🔗(https://blog.rapusia.org/climate_crisis/2227/the-importance-of-the-cryosphere-in-the-planet-s-climate-balance/)

#Cryosphere #ClimateCrisis #ClimateChange #PlanetaryHealth

While the #Himalaya loses its everlasting snow forever – 
-70% by 2100, and more later, see State of the #Cryosphere 2022 chapter 3: https://iccinet.org/statecryo2022/
– so while that ice goes, the earth crust in the Himalaya's rebounds = uplifts.
Any bets on whether that rebound is balanced by sinking of the Indian subcontinent?
It'd speed up #sealevelrise nicely there – and is going to cause some cool #earthquakes , too, I suppose.

Since the #Fennoscandian ice sheet vanished in the Holocene, that land mass is in uplift #rebound. But the landmass in Northern Germany balances that uplift like a seesaw by sinking. Which spells faster sea level rise from #climatechange there as @DrEvanGowan explains here: https://fediscience.org/@DrEvanGowan/110456196955949259

I assume, we'll soon see the same in the Himalaya region. Except there are billions of people and fertile lands all around #India #China #Pakistan #Bangladesh
affected by
* sea level rise due to the seesaw,
* lack of melt water and the resulting drought,
* rapidly changing weather patterns due to heated rock surfaces replacing cold snow

and by quakes.

"Too late now to save Arctic summer ice, climate scientists find. The world was on the brink of multiple disastrous tipping points. Ice-free summers inevitable even with sharp emissions cuts and likely to result in more extreme heatwaves and floods. The research shows that 90% of the melting is the result of human-caused global heating, with natural factors accounting for the rest. We need to reduce CO2 emissions more ambitiously and also prepare to adapt to this faster Arctic warming and its impacts on human society and ecosystems.”
https://www.theguardian.com/environment/2023/jun/06/too-late-now-to-save-arctic-summer-ice-climate-scientists-find
#ClimateCrisis #Cryosphere #Heatwaves #Bushfires #Floods #FossilFuels #Addiction

Hello #Fediverse !
An #Introduction post from the scientists behind the #PolarPortal - a danish collaboration between the Danishs Meteorological Institute, the Danish Technical University and GEUS with accurate near real-time #Climate data on the state of the #cryosphere in the #Arctic.
Follow us for data + visualisations of #ArcticSeaIce #Weather #GreenlandIceSheet #SMB and #GRACE / #GRACEFO mass budget as well as #permafrost +#Iceberg processes

@greenlandicesheet

http://polarportal.dk/en/home/

Not so long ago, in the Antarctic:

"...part of the ice sheet was thinner several thousand years ago than it is now and subsequently thickened."

Yay! Why?

"...because of concern that present ice thinning in this region may lead to rapid, irreversible sea level rise.

But uh-oh:

"...however, reversal required at least 3000 years to complete."

#Paleoclimate
#Cryosphere

https://doi.org/10.5194/tc-17-1787-2023

Particularly proud of this talk at #EGU23 (ht @roelof) as Nicolaj, a now graduated PhD student with me at DMI + DTU space, knocked it out the park with this final study from his thesis. Now submitted to the #cryosphere! https://fediscience.org/@roelof/110275077903207736

“I don’t think we want to live in a global #suburbia. Why do you want to go to a place and see the same weeds you can see in your back garden?”

“We’ve introduced #ferals to the bottom of the world. They’re destroying it
Research published in Scientific Data this month suggests humans have introduced 1125 new species to the Southern Ocean islands, which surround #Antarctica, and 135 to the frozen continent itself. The list reads like an exotic menagerie: budgerigars, canaries, geese, terrapins, opossums, hedgehogs, pigs, reindeer, hamsters, foxes and even monkeys. These species have hunted local #seabirds and destroyed native plants. The problem is going to get worse. Australian explorers noted #dogs so feral they had basically become wolves.”

https://www.smh.com.au/national/we-ve-introduced-ferals-to-the-bottom-of-the-world-they-re-destroying-it-20230420-p5d1w1.html
#BiologicalInvasions #Cryosphere #AlienSpecies #Livestock #AntarcticTreaty #SettlerCulture

Sea ice #algae on which #Arctic animals rely under threat from #climate change.

#cryosphere #microbiome

https://phys.org/news/2023-04-sea-ice-algae-arctic-animals.html

"1) [...] comprendre à quel points les scientifiques sont inquiets de ce qu'ils observent sur la #cryosphère (#banquise, calottes polaires, #glaciers de montagne, #permafrost) et sur les #océans. Mme #Sevestre emploie même le terme "flippant". Il s'agit bien ici d'OBSERVATIONS et pas seulement de prévisions (sachant que les prévisions ne sont pas bonnes non plus, du tout). [...] la limite à +1.5C n'est pas un objectif politique, mais bien une limite PHYSIQUE à ne pas franchir.
https://www.youtube.com/watch?v=CQbRQDSbTdg
2) Cette communication du #CNRS [...] "Le #réchauffement #climatique en France s’annonce pire que prévu"
https://lejournal.cnrs.fr/articles/le-rechauffement-climatique-en-france-sannonce-pire-que-prevu
3) Le rapport du Groupe 2 du #GIEC [...] "Le changement climatique a causé des dommages substantiels et des pertes de plus en plus irréversibles dans les #écosystèmes terrestres, d'eau douce, côtiers et marins de haute #mer (confiance élevée).
L'étendue et l'ampleur des effets du changement climatique sont PLUS IMPORTANTES que celles estimées dans les évaluations précédentes (confiance élevée)."
https://www.ipcc.ch/report/ar6/wg2/downloads/report/IPCC_AR6_WGII_SummaryForPolicymakers.pdf
4) Selon #FutureEarth, réseau international de chercheurs dont les références sont assez peu reconnues pour verser dans l'alarmisme eschatologico-nihiliste, il est "probable" que les #émissions liées à la fonte du permafrost soient "pires que prévues"
https://10nics2020.futureearth.org/10-new-insights-in-climate-science/2-emissions-from-thawing-permafrost-likely-to-be-worse-than-expected"

💭 Missed our recent OCEAN:ICE introductory webinar facilitated by the European Polar Board?

🪄 Catch up here ➡️ https://youtu.be/SWv3ikY7dOU

#ocean #cryosphere #Antarctica #climate #EarthSystem

🧊🔍 https://thekidshouldseethis.com/post/science-beneath-svartisen-glacier-video

“The Svartisen #glacier in #Norway is one of the few places on earth where #ice can really be seen in action… not just from the outside, but from the inside. Deep beneath the glacier, in a chamber at the end, scientists come face to face with ice. Then it’s two days of hard work using hot water to melt a #cave big enough to get inside the glacier and see it in all its glory.”

#video #science #glaciers #cryosphere #frozen #water #geology #caves

Frost-heave monoliths on glacial pavement, near #Inukjuak, northern #Quebec. #cryosphere #Geology