#permafrost — Public Fediverse posts

RE: https://idw-online.social/@idw_online/117246752406809548

Vanishing Lakes
New Data Platform for #Arctic #Permafrost Lakes

Researchers at the Alfred Wegener Institute have developed the "Lost Lakes" database, which provides important information on the status of Arctic #thermokarst lakes - both in real time and over extended periods.

RE: https://idw-online.social/@idw_online/117246752406809548

Vanishing Lakes
New Data Platform for #Arctic #Permafrost Lakes

Researchers at the Alfred Wegener Institute have developed the "Lost Lakes" database, which provides important information on the status of Arctic #thermokarst lakes - both in real time and over extended periods.

RE: https://idw-online.social/@idw_online/117246752406809548

Vanishing Lakes
New Data Platform for #Arctic #Permafrost Lakes

Researchers at the Alfred Wegener Institute have developed the "Lost Lakes" database, which provides important information on the status of Arctic #thermokarst lakes - both in real time and over extended periods.

https://www.europesays.com/ch/127981/ Not just Nepal: How climate change puts European Alps under threat of glacial retreat and rock fall #Alps #ClimateChange #EnvironmentalImpact #EuropeanAlps #GlacialRetreat #glaciers #MontBlanc #permafrost #RockFall

Permafrost melt could cost $261 billion in infrastructure damages, study suggests https://phys.org/news/2026-09-permafrost-billion-infrastructure.html

#environment #permafrost #politics #economy #infrastructure

Permafrost melt could cost $261 billion in infrastructure damages, study suggests https://phys.org/news/2026-09-permafrost-billion-infrastructure.html

#environment #permafrost #politics #economy #infrastructure

Permafrost melt could cost $261 billion in infrastructure damages, study suggests https://phys.org/news/2026-09-permafrost-billion-infrastructure.html

#environment #permafrost #politics #economy #infrastructure

Permafrost melt could cost $261 billion in infrastructure damages, study suggests https://phys.org/news/2026-09-permafrost-billion-infrastructure.html

#environment #permafrost #politics #economy #infrastructure

Permafrost melt could cost $261 billion in infrastructure damages, study suggests https://phys.org/news/2026-09-permafrost-billion-infrastructure.html

#environment #permafrost #politics #economy #infrastructure

Datos de la Universidad de Alcalá contribuyen a confirmar la degradación global del permafrost

https://tardigram.com/m/MedioAmbiente/t/65311

Challenges In The Use Of Local Data For Regional Scale Mapping Of C And N Stocks In The Continuous Permafrost Zone At The Yukon Coastal Plain | Heatwave Risks To Tipping Point Of Permafrost
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https://doi.org/10.5194/soil-12-113-2026 <-- shared paper
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https://doi.org/10.1038/s41558-026-02603-2 <-- shared paper
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https://www.theguardian.com/environment/2026/aug/20/tipping-points-heatwaves-wildfires-permafrost-climate-crisis <-- shared media article
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https://www.cbc.ca/news/canada/north/permafrost-slumps-herschel-island-qikiqtaruk-yukon-9.7168780 <-- shared media article
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[putting together two different ‘sorts’/focuses of research/reporting, but…]
H/T @gustaf Hugelius | Professor at Stockholm University
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“Permafrost soils are particularly vulnerable to climate change. To assess and improve estimations of carbon (C) and nitrogen (N) budgets it is necessary to accurately map soil carbon and nitrogen in the permafrost region. In particular, soil organic carbon (SOC) stocks have been predicted and mapped by many studies from local to pan-Arctic scales. Several studies have been carried out at the Canadian Beaufort Sea coast, though no regional maps of terrestrial carbon stocks based on spatial modelling has been conducted yet. This study combines available field data from the Canadian Yukon coastal plain and uses it to map regional SOC and N stocks using the machine learning algorithm random forest and environmental variables based on remote sensing data. [The authors] developed models using the data for the entire region and separate models for the coastal mainland area and Qikiqtaruk Herschel Island. Each model was used to map SOC and N stocks for its respective area. [They] assessed the performance of the different random forest models by using crossvalidation. [They] further assessed model results using the Area of Applicability (AOA) method and the quantile regression forest approach, comparing the results and discussing their implications within the context of both methods. [They] explore[d] local differences in soil properties and how soil data distribution across the region affects the accuracy of the predictions of SOC and N stocks..."
#permafrost #soils #geology #climatechange #temperature #thawing #melting #emissions #CO2 #methane #carbon #nitrogen #GIS #spatial #mapping #Qikiqtaruk #HerschelIsland #Yukon #Canada #soilorganiccarbon #SOC #arctic #cryosphere #BeaufortSea #coast #coastal #machinelearning #model #modeling #remotesensing #earthobservation #carbonstocks #island #mainland #spatialanalysis #scale

Another Swiss Village Faces Risk of an Alpine Collapse

It’s becoming an unfortunately familiar story in Switzerland: The village of Kandersteg, ringed by glaciers and green…
#NewsBeep #News #Headlines #Climatechange #landslide #permafrost #Switzerland #World
https://www.newsbeep.com/696562/

#Servicetweet #News #Umwelt #Environment #Permafrost
➡️ Stichwort Permafrost
➡️ In nur 10 Jahren hat sich die Methanfreisetzung in Sibirien mehr als verdoppelt
➡️ Reminder: Methan ist klimaschädlicher als CO2
https://www.forschung-und-wissen.de/nachrichten/umwelt/sibirien-setzt-doppelt-so-viel-methan-frei-wie-vor-zehn-jahren-133712121 1/x

Permafrost Distribution, Degradation, And Potential Mass Movement Cascades In The Western Himalaya Using Machine Learning And Numerical Models
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https://doi.org/10.1038/s44304-026-00217-4 <-- shared paper
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https://doi.org/10.1038/s41598-025-22051-w <-- shared (earlier) paper
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https://doi.org/10.1080/2150704X.2025.2488532 <-- shared (earlier) paper
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H/T @abhinav Alangadan
“Can we develop a first-order understanding of permafrost degradation and glacial lakes exposed to degradation-induced mass movements in the Himalaya?
[The authors] tried to address this question. The study [first link above] integrates machine learning, statistical modeling, and numerical modeling to investigate high-resolution permafrost distribution, potential degradation, and associated mass-movement hazards in the Kinnaur district of Himachal Pradesh, India.
Using rock glaciers as proxies, [they] generated a high-resolution permafrost distribution using machine learning, while potential degradation zones were delineated using the 0°C isotherm as a first-order indicator. [They] further identified glacial lakes located near potentially degrading permafrost zones and reconstructed their bathymetry. A detailed scenario-based GLOF process-chain simulation was then carried out for Kashang Lake using r.avaflow and HEC-RAS.
[Their] results indicate that seven glacial lakes in #Kinnaur are located close to potentially degrading permafrost zones. The simulations further show that a potential GLOF from Kashang Lake could inundate critical downstream infrastructure, including nearly 11 km of National Highway 5…”
#permafrost #distribution #GIS #spatial #mapping #Himalayas #India #Kinnaur #HimachalPradesh #KashangLake #massmovement #engineeringgeology #machinelearning #AI #model #modeling #numericalmodel #glaciallakes #glaciet #glacial #glaciallakeoutburstflood #GLOF #cryosphere #geostatistics #rockglaciers #GeoAI #bathymetry #processchainsimulation #HECRAS #avaflow #risk #hazard #mitigation #riskassessment #infrastructure #HEP #publicsafety #downstream #avalanche

Häppchen #Klimawissen: Wie bedroht die globale Erwärmung das arktische #Meereis?

Im Winter friert das #Polarmeer zu und im Sommer taut es teilweise wieder auf. Das war seit Jahrhunderten so. Doch wird das #Nordpolarmeer im Sommer bald eisfrei sein? Etwas #Einsteigerwissen zur #Arktis und den dortigen Veränderungen durch den #Klimawandel. 🧊🌍

https://www.oekologisch-unterwegs.de/klimawandel/937-klimawandel-kippelemente-verlust-des-eises-am-nordpol.html

#Meereis #Erderwärmung #Umweltschutz #Eisschmelze #NASA #Klimaforschung #Permafrost #Treibhausgase

A Review Of Evolving Remote Sensing And Automated Techniques In Rock Glacier Mapping
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https://doi.org/10.1016/j.earscirev.2026.105473 <-- shared paper
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#GIS #spatial #mapping #rockglacier #glaciers #permafrost #remotesensing #interferometry #earthobservation #spatialanalysis #machinelearning #AI #machinelearning #ML #deeplearning #CNN #metrics #inventory #earthobservation #GeoAI #geostatistics #InSAR #LiDAR #radar #satellite #review #literaturereview #geomorphology #geomorphometry #hydrology #geohazard #risk #hazard #engineeringgeology #biodiversity #permafrost #cryosphere #ice #snow #geology #assessment #survey #research
@Geospatial Research Institute Toi Hangarau | @University of Canterbury

Risiko für irdische „Heißzeit steigt
Klimaforscher warnen: Destabilisierung des Klimasystems wird wahrscheinlicher

#Klimaforscher warnen: Das #Erdklima könnte dem Übergang zu einer neuen #Heißzeit näher sein als gedacht. Denn durch die zunehmende #Erwärmung und steigenden #Treibhausgas'werte hat sich das Risiko für ein Umkippen mehrerer Stellschrauben im #Klimasystem weiter erhöht. Positive #Rückkopplungen und #Fernwirkungen über Kontinente hinweg könnten dann einen #Kaskadeneffekt auslösen, der das Erdklima destabilisiert. Dann könnte die Erde in einen neuen Zustand geraten, der nach menschlichen Zeitmaßstäben irreversibel ist – eine Heißzeit.

Einige der Klima-Stellschrauben könnten schon jetzt in ein neues Gleichgewicht gekippt sein. „Dies ist der Fall bei den Eisschilden #Grönland's und der #Westantarktis, für den borealen #Permafrost und die #Berggletscher“, berichten die Forscher. Auch der #Amazonas-#Regenwald stehe kurz vor dem Umkippen.

https://www.scinexx.de/news/geowissen/risiko-fuer-irdische-heisszeit-steigt/

#Kippelemente
#Kipppunkte
#TippingPoint
#Klimakatastrophe

The Arctic Coastal Erosion Model - Overview, Developments, and Calibration at Drew Point, Alaska
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https://doi.org/10.22541/essoar.174086594.45589925/v1 <-- shared paper
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#Alaska #permafrost #coastalerosion #Arctic #permafrost #modeling #climateresilience #coast #coastal #erosion #sloughing #coastline #polaramplification #climatechange #ArcticCoastalErosion #ACE #model #modeling #oceanographic #atmospheric #oceanic #finiteelement #thermoabrasion #storm #stormsurge #fieldwork #calibration #geomechanics #sediments #geochemistry
#SandiaNationalLaboratories #USGS

A Decade of Post-Fire Succession Amplifies the Effect of Wildfire on the Surface Radiation Balance and Permafrost Thaw in Subarctic Peatlands
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https://doi.org/10.1002/ppp.70016 <-- shared paper
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#permafrost #thaw #Canada #NWT #NorthwestTerritories #wildfire #postfire #peatlands #ScottyCreek #vegetation #tree #toppling #geomorphology #cryosphere #geomorphetry #warming #winter #summer #climatechange #subarctic #arctic #monitoring #measurements #TaigaPlains #ecoregion #blackspruce #processes #landcover

Rapid Mass Movements Triggered By An Atmospheric River In Disko Island, West Greenland
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https://doi.org/10.1002/esp.70201 <-- shared paper, 2023 event(s)
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https://doi.org/10.1007/s10346-022-01922-7 <-- shared paper, 2021 event(s)
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https://www.polarresearch.at/the-great-landslide-of-assapaat/ <-- shared technical article
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#landslide #massmovement #thawing #permafrost #extremewweather #cryosphere #Qeqertarsuaq #ArcticDEM #DiskoIsland #Greenland #ERA5 #CARRA #fluvial #pluvial #precipitation #rainfall #snow #ice #glacier #glacial #temperature #slushflow #GIS #spatial #mapping #geomorphology #elevation #slope #atmosphericriver #climate #weather #snowmelt #island #coast #coastal #damage #humanimpacts #infrastructure #arctic #monitoring #geohazard #risk #hazard #engineeringgeology #polar #change #remotesensing #spatialanalysis #spatiotemporal #earthobservation #debrisflow #remoteareas
#GreenlandEcosystemMonitoring | @europeanspaceagency | #CopernicusECMWF #Copernicus

Frozen No More - A Case Study Of Arctic Permafrost Impacts Of Oil And Gas Withdrawal
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https://doi.org/10.1038/s41598-024-76292-2 <-- shared paper
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#GIS #spatial #mapping #remotesening #earthobservation #oil #gas #oilandgas #O&G #energy #extraction #drilling #exploration #subsurface #permafrost #melting #humanimpacts #climatechange #oilextraction #risk #hazard #riskassessment #water #hydrology #sediment #tundra #oilwellpads #NorthSlope #Alaska #arctic #spatialanalysis #spatiotemporal #remediation #drillpad #oilpad #lease #industry #habitat #ecosystem #fieldwork #sampling #geology #engineeringgeology #impact

Weird. Maybe, I've got a logical mistake in my thinking

Will #Steffen et al 2018 https://www.pnas.org/doi/10.1073/pnas.1810141115 warned in "Trajectories of the Earth System in the Anthropocene" of a "Hot House Earth" .
A term that got negative press all over and the paper is still discredited in public opinion among the non-scientific community, at least.
A Hot House Age is merely the term for an ice-less age in which the poles are not covered by kilometres of ice. That is called an Ice House Age.

#Talento et al 2021 https://esd.copernicus.org/articles/12/1275/2021/ modelled what happens to ice ages #glacial |s in several emission scenarios.
Today's CO2 concentration is already moving the next #iceage to later than what the #Milankovic cycles would dictate.
Scenarios for (in my opinion fictitious, unachievable) emissions of 1000 or 3000 Pg C move the next fullblown ice age to 600ky and 900ky from now.
Almost a million years. No ice age.

But the #AMOC is going to collapse: the convection in the Subpolar Gyre in the 2030s; the Northern branch of AMOC might tip before 2050 to later inevitably collapse, too.

Certainly that increases ice mass in Greenland, Europe, and Eurasia, and Arctic Sea Ice grows back, too. And all this AMOC-related ice grows and grows, each year puts more snow on the ever increasing ice layer.
I don't know how much ice is needed to meet criteria for a glacial definition.
But all that Eurasian ice also buries the boreal forests under it, ie removes their carbon from the cycle. And puts an ice plug on leaking methane from #permafrost in that area. (Tho not the permafrost in the far East. I gather, that area is not prone to ice sheets from Atlantic influences and needs other triggers to form? It wasn't covered by ice in #MIS11, 420ky ago. )

Weird isn't it, that ice mass models like Talento's don't factor in ever-increasing ice mass in low-to medium emission scenarios. Hm.

Hello #Fediverse !
An #Introduction post from the scientists behind the #PolarPortal - a danish collaboration between the Danish 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/