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#permafrost

0 posts0 participants0 posts today
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💧🌏 Greg Cocks

Kinematic Evolution Of A Large Paraglacial Landslide In The Barry Arm Fjord Of Alaska
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doi.org/10.1029/2023JF007119 <-- shared paper
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doi.org/10.5066/P9EUCGJQ <-- shared technical article
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sciencebase.gov/catalogMaps/ma <-- shared web mapping service
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#GIS #spatial #mapping #massmovement #landslide #engineeringgeology #remotesensing #sitespecific #LiDAR #iFSAR #paraglacial #kinematics #mapping #monitoring #spatialanalysis #spatiotemporal #fedscience #risk #hazard #glacier #retreat #climatechange #Alaska #BarryArm #fjord #hazardassessment #tsunami #wave #BarryGlacier #change #sensors #fieldwork #surveillance #melting #permafrost #Whittier #geophysics #geology #Alaska #geomorphometry #deglaciating
@USGS

Continued thread
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Nonilex

#Arctic #warming could pose a threat to America’s #security too: #Alaska may have new vulnerabilities to both #China & #Russia; changes in #ocean salinity & temp might interfere w/ #submarine detection systems; extremes of climate change, including #permafrost thaw in Russia, may drive #economic #instability, social #unrest, & territorial claims. [#Trump #Intelligence Agencies excluded #ClimateChange from the annual #ThreatAssessment report for the first time in decades — too *woke*]

#Greenland
Continued thread
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Sune Auken

@MartinStendel

Bio:

Climate scientist at #DMI.

Coordinator of PolarPortal (lots of up-to-date Arctic data) and ROPEWALK (huge Danish logbook digitization project together with @rigsarkivet).

#ClimateChange in the Arctic, in particular #Greenland and in Africa, in particular #Tanzania.

Modelling subsea #permafrost.

Conveying science to the public: #IKFF #IKlimaforskernesFodspor #BestilEnForsker

🇪🇺 with dual citizenship 🇩🇰 and 🇩🇪 and (occasionally) tooting in three languages.

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Moreno Colaiacovo

Per rallentare lo scioglimento del #permafrost e ridurre il rilascio di anidride carbonica, l'azienda #ColossalBiosciences vuole ripristinare l'ecosistema della tundra artica. ❄️

Per farlo, useranno il genome editing per creare nuove specie di #elefanti resistenti al freddo, modificando il loro #DNA in modo che sia più simile a quello dei #mammut. 🦣

È di ieri la notizia della creazione dei primi topi lanosi, un primo passo in questa direzione. 🐭

Cosa pensi di questo progetto?

· 12 people · Closed
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Scienza et Magia

Tornati in vita dal permafrost organismi zombie. Hanno risvegliato esseri preistorici dal ghiaccio e ora si stanno clonando da soli. Il permafrost siberiano ha custodito per 24.000 anni un segreto biologico inedito: minuscoli organismi simili a vermi chiamati rotiferi bdelloidi che, una volta scongelati da ricercatori russi, non solo sono tornati alla vita, ma hanno anche iniziato a replicarsi..

#criptobiosi #organismizombie #partenogenesi #permafrost #rotiferibdelloidi

scienzamagia.eu/misteri-ufo/to

generata AI permafrost e organismi unicellulari congelati
Public
O=C=O

Groundwater in the Arctic is delivering more carbon into the ocean than was previously known

A relatively small amount of #groundwater trickling through #Alaska's #tundra is releasing huge quantities of #carbon into the #ocean, where it can contribute to #ClimateChange, according to new research out of The University of Texas at Austin.
As the tundra continues to thaw and the flow of submarine groundwater ratchets up, Demir said that the outflow of carbon from shore to sea could effectively make ocean surface waters a carbon source to the #atmosphere. The #CO2 released via groundwater could also contribute to ocean #acidification.
"The #Arctic coast is changing in front of our eyes," said Bayani Cardenas, a co-author of this study and professor at the Jackson School's Department of Earth and Planetary Sciences. "As #permafrost thaws, it turns into coastal and submarine #aquifers. Even without this thawing, our studies are among the first to directly show the existence of such aquifers."

phys.org/news/2025-01-groundwa

#ClimateScience
#ClimateCrisis
#Cryosphere

Micaela Pedrazas (left) and Cansu Demir (right) install a piezometer along the beach of Kaktovik Lagoon. Credit: Bayani Cardenas / Jackson School of Geosciences
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💧🌏 Greg Cocks

Permafrost Thaw Threatens Up To 3 Million People In The Arctic
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phys.org/news/2025-01-permafro <-- shared technical article
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doi.org/10.1038/s43247-024-018 <-- shared paper
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#GIS #spatial #mapping #arctic #climatechange #permafrost #thaw #communities #impacts #humanimpacts #infrastructure #risk #hazard #northernhemisphere #global #threat #Sweden #greenland #alaska #yukon #russia #canada #norway #landuse #melting #ecosystems #livelihoods #firstnation #indigenous #inhabitants #population #cost #economics #policymaking #planning #management #spatialanalysis #adapation #transportation #supplies #waterquality #watersecurity #foodsecurity #disease #contaminants #multifactor #analysis #MFA #social #culture #cultural #transdisciplinary #ground #temperature #physicalprocesses #consequences #mobility #supplies #biogeochemical #water #hydrology #engineeringgeology #erosion #ecosystem #FATE

schematic - Composite overview synthesizing the risks from permafrost thaw identified across the four study areas
map - Map of the study areas and trends in the ground temperature over the period 2000–2019
photo - A drone picture shows private houses on a territory of former airfield, damaged by thermokarst processes in the village of Churapcha in the Republic of Sakha (Yakutia), Russia September 5, 2021
Permafrost risk analysis workflow diagram
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O=C=O

Permafrost in climate change: Models predict #Arctic 's response to global warming

When the #permafrost thaws, microorganisms begin to break down the material. This produces greenhouse gases: #CarbonDioxide (#CO2) or #methane, (#CH4) which has about 28 times the warming effect of CO2 on a time horizon of 100 years. These gases also escape from the ponds and lakes, where a lot of #carbon is decomposed as well.

phys.org/news/2025-01-permafro

#Cryosphere
#ClimateChange
#TippingPoint
#GlobalWarming

Coastal permafrost in Muostakh Island, Siberia. Credit: David Nielsen/MPI-M
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David Salesa 🌱

Este es el cráter Batagaika, en la República de Sakha (Rusia), el más grande causado por el colapso del suelo tras el deshielo del permafrost.

Su historia marca la famosa sinergia entre cambio climático y actividad humana en la que una desencadena el potencial de la otra.

¿Cómo? 🤔

Explicación 🧵

Imagen aérea del cráter Batagaika
Dos modelizaciones en la que se observa el cambio de tamaño y profundidad del cráter entre 2014 y 2023
#CambioClimatico#Permafrost
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Chris Merle

Melting #permafrost is bad, mmkay.

Iron and sulfite minerals are now leaching into once pristine arctic rivers, acidifying them. One the sulfur acidifies the water it begins to leach toxic compounds and elements into the rivers. It was more commonly seen in rivers where abandoned mines were nearby.

North America's Ongoing, Ignored Disaster

m.youtube.com/watch?v=Lxfpgqn6

YouTubeNorth America's Ongoing, Ignored DisasterBy GeologyHub
#globalWarming#acidification#ClimateChange
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antonio bruno

La tundra artica passa da serbatoio a fonte di carbonio per la prima volta in millenni
pressenza.com/it/2024/12/la-tu
#atmosphere , #Carbonio, #EffettoSerra, #EmissioniCO2, #NOAA, #permafrost

Pressenza · La tundra artica passa da serbatoio a fonte di carbonio per la prima volta in millenniDi Cristen Hemingway Jaynes Secondo il rapporto Arctic Report Card 2024 dell’Ente nazionale per l'oceano e l'atmosfera (NOAA - National Oceanic and Secondo il rapporto Arctic Report Card 2024, la tundra artica sta diventando una fonte netta di anidride carbonica, spodestando l’effetto benefico che aveva sul clima nei millenni in cui fungeva da serbatoio di carbonio.
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