#permafrost — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #permafrost, aggregated by home.social.
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#Permafrost ist ein wichtiges Puzzleteil im Ökosystem der #Arktis: Er speichert Kohlenstoff über lange Zeiträume und bietet festen, stabilen Grund. Schmilzt das Eis, entstehen sogenannte Thermokarstseen.
AWI-Forschende haben nun die Datenbank "Lost Lakes" aufgebaut, die wichtige Informationen über den Zustand von Thermokarstseen der Arktis bereitstellt. Das ermöglicht es, Veränderungen in den Permafrostlandschaften zu erkennen, sobald sie passieren.
Foto:Ingmar Nitze
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#Permafrost ist ein wichtiges Puzzleteil im Ökosystem der #Arktis: Er speichert Kohlenstoff über lange Zeiträume und bietet festen, stabilen Grund. Schmilzt das Eis, entstehen sogenannte Thermokarstseen.
AWI-Forschende haben nun die Datenbank "Lost Lakes" aufgebaut, die wichtige Informationen über den Zustand von Thermokarstseen der Arktis bereitstellt. Das ermöglicht es, Veränderungen in den Permafrostlandschaften zu erkennen, sobald sie passieren.
Foto:Ingmar Nitze
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#Permafrost ist ein wichtiges Puzzleteil im Ökosystem der #Arktis: Er speichert Kohlenstoff über lange Zeiträume und bietet festen, stabilen Grund. Schmilzt das Eis, entstehen sogenannte Thermokarstseen.
AWI-Forschende haben nun die Datenbank "Lost Lakes" aufgebaut, die wichtige Informationen über den Zustand von Thermokarstseen der Arktis bereitstellt. Das ermöglicht es, Veränderungen in den Permafrostlandschaften zu erkennen, sobald sie passieren.
Foto:Ingmar Nitze
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#Permafrost ist ein wichtiges Puzzleteil im Ökosystem der #Arktis: Er speichert Kohlenstoff über lange Zeiträume und bietet festen, stabilen Grund. Schmilzt das Eis, entstehen sogenannte Thermokarstseen.
AWI-Forschende haben nun die Datenbank "Lost Lakes" aufgebaut, die wichtige Informationen über den Zustand von Thermokarstseen der Arktis bereitstellt. Das ermöglicht es, Veränderungen in den Permafrostlandschaften zu erkennen, sobald sie passieren.
Foto:Ingmar Nitze
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#Permafrost ist ein wichtiges Puzzleteil im Ökosystem der #Arktis: Er speichert Kohlenstoff über lange Zeiträume und bietet festen, stabilen Grund. Schmilzt das Eis, entstehen sogenannte Thermokarstseen.
AWI-Forschende haben nun die Datenbank "Lost Lakes" aufgebaut, die wichtige Informationen über den Zustand von Thermokarstseen der Arktis bereitstellt. Das ermöglicht es, Veränderungen in den Permafrostlandschaften zu erkennen, sobald sie passieren.
Foto:Ingmar Nitze
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Nebraska scientists link Nepal flood to climate change
OMAHA, Neb. (WOWT) – Two weeks after flooding in Nepal, CNN reports thousands of people are still missing.…
#Climate #ClimateChange #Climate-Change #climatechange #climatechangeNepal #glacialmelt #globalwarming #Himalayanglaciermelt #Nebraskaclimatescientists #Népal #Nepalflashflood #OmahaNepalesecommunity #permafrost #Tíbet
https://www.europesays.com/3244673/ -
RE: https://idw-online.social/@idw_online/117246752406809548
Vanishing Lakes
New Data Platform for #Arctic #Permafrost LakesResearchers 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.
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RE: https://idw-online.social/@idw_online/117246752406809548
Vanishing Lakes
New Data Platform for #Arctic #Permafrost LakesResearchers 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.
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RE: https://idw-online.social/@idw_online/117246752406809548
Vanishing Lakes
New Data Platform for #Arctic #Permafrost LakesResearchers 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.
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A crise climática já move montanhas.
- bsoplvr
https://outraspalavras.net/terraeantropoceno/a-crise-climatica-ja-move-montanhas/
#TerraeAntropoceno #Altastemperaturas #Atmosfera #Capa #Chuvasextremas #Clima #Erupesvulcnicas #Geleiras #Humanidade #Mudanasclimticas #Oceano #Permafrost #Planeta #Precipitao #Terra -
Tauender #Permafrost erhöht die Gefahr von #Bergstürzen in den Schweizer #Alpen.
Oberhalb von #Kandersteg könnten sich am Spitze Stei bis zu 20 Millionen Kubikmeter Gestein lösen. Eine unmittelbare Gefahr für das Dorf besteht derzeit nicht.
Der Berg wird kontinuierlich überwacht, Evakuierungspläne liegen vor. Steigende Temperaturen lassen #Permafrost und #Gletscher tauen und können dadurch Berghänge destabilisieren.
https://edition.cnn.com/2026/08/18/travel/swiss-village-rock-collapse-threat-intl
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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 -
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/
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#Permafrost Thaw May Cause #Arctic River Erosion to Speed Up
October 09, 2024
"Permafrost, the thick layer of perennially frozen ground that covers much of the Arctic, slows down the migration of Arctic rivers, according to a new Caltech study. River migration is a common process in which a river's path meanders over time due to erosion of the riverbanks. This rerouting, which can also occur in #SuddenFloods, poses a threat for many communities that live along and depend on rivers. The findings also have implications for how the Arctic region will be impacted by a warming climate as permafrost thaws over time.
"The research was conducted in the Caltech laboratory of Michael Lamb, professor of geology, and is described in a paper appearing in the journal Nature on October 9.
"Led by graduate student Emily Geyman, the study focused on the #KoyukukRiver, a large tributary of the #YukonRiver that winds for hundreds of miles through interior Alaska. There was debate within the scientific community about whether the frozen soil along the riverbanks serves to fortify the banks against erosion or to promote it.
"'Large rivers like the Yukon or the Amazon can move tens to hundreds of feet per year,' Geyman says. "Arctic rivers in particular differ from temperate rivers because they need to thaw the material of their banks before they can pick that material up and move it.'
"Due to #ClimateChange, permafrost is slowly thawing over decades. But a river can experience drastic natural changes within a single year, with flow conditions changing from very cold and fast in early spring to warm and slow a few months later. Geyman and her collaborators leveraged these major changes that take place within a single season to gain a glimpse into how the rivers will behave in response to climate change decades or centuries into the future.
"In spring, the Koyukuk River swells in volume from snowmelt, flowing with fast, cold water. For more temperate rivers, a fast flow means more erosion. But in the Arctic, the temperature of the water matters—cold water is unable to thaw the frozen banks in order to migrate.
"In the new study, Geyman and her collaborators used satellite imagery of the Koyukuk over the past several years and developed a technique to decode high-resolution changes from the images. The team hypothesized that if permafrost was slowing the river's migration, they should only see migration later in the summer when the river water has warmed up. Their hypothesis matched with the satellite data, suggesting that permafrost does, in fact, slow down river migration.
"Next, the team compared sections of the river that flow through permafrost with those that do not. The Koyukuk is special because it traverses a patchwork of both permafrost and unfrozen ground. The team traveled to the Arctic to map the erosion on various bends of the river and found that sections without permafrost migrated twice as fast as analogous riverbends through permafrost terrain.
"The research is part of a larger effort to understand the dynamics of rivers and how they transport carbon, nutrients, and other materials trapped in the soil.
"'River migration has implications for local communities and infrastructure, and also for the Arctic environment,' Lamb says. 'About 1,500 gigatons of #carbon are stored in the frozen permafrost—about twice as much carbon as in the atmosphere, for comparison. There is also #mercury frozen in the soil that could be liberated into rivers as permafrost thaws. We are, ultimately, trying to understand what happens to these elements in the context of river erosion.'
"The work was a collaboration with local Alaska #Native communities, in particular from the town of #Huslia."
Read more:
https://www.caltech.edu/about/news/permafrost-thaw-may-cause-arctic-river-erosion-to-speed-up#GlobalWarming #PermafrostMelt #MercuryPoisoning #CarbonSinks #WaterIsLife #ClimateChange #Arctic #Alaska
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#Permafrost Thaw May Cause #Arctic River Erosion to Speed Up
October 09, 2024
"Permafrost, the thick layer of perennially frozen ground that covers much of the Arctic, slows down the migration of Arctic rivers, according to a new Caltech study. River migration is a common process in which a river's path meanders over time due to erosion of the riverbanks. This rerouting, which can also occur in #SuddenFloods, poses a threat for many communities that live along and depend on rivers. The findings also have implications for how the Arctic region will be impacted by a warming climate as permafrost thaws over time.
"The research was conducted in the Caltech laboratory of Michael Lamb, professor of geology, and is described in a paper appearing in the journal Nature on October 9.
"Led by graduate student Emily Geyman, the study focused on the #KoyukukRiver, a large tributary of the #YukonRiver that winds for hundreds of miles through interior Alaska. There was debate within the scientific community about whether the frozen soil along the riverbanks serves to fortify the banks against erosion or to promote it.
"'Large rivers like the Yukon or the Amazon can move tens to hundreds of feet per year,' Geyman says. "Arctic rivers in particular differ from temperate rivers because they need to thaw the material of their banks before they can pick that material up and move it.'
"Due to #ClimateChange, permafrost is slowly thawing over decades. But a river can experience drastic natural changes within a single year, with flow conditions changing from very cold and fast in early spring to warm and slow a few months later. Geyman and her collaborators leveraged these major changes that take place within a single season to gain a glimpse into how the rivers will behave in response to climate change decades or centuries into the future.
"In spring, the Koyukuk River swells in volume from snowmelt, flowing with fast, cold water. For more temperate rivers, a fast flow means more erosion. But in the Arctic, the temperature of the water matters—cold water is unable to thaw the frozen banks in order to migrate.
"In the new study, Geyman and her collaborators used satellite imagery of the Koyukuk over the past several years and developed a technique to decode high-resolution changes from the images. The team hypothesized that if permafrost was slowing the river's migration, they should only see migration later in the summer when the river water has warmed up. Their hypothesis matched with the satellite data, suggesting that permafrost does, in fact, slow down river migration.
"Next, the team compared sections of the river that flow through permafrost with those that do not. The Koyukuk is special because it traverses a patchwork of both permafrost and unfrozen ground. The team traveled to the Arctic to map the erosion on various bends of the river and found that sections without permafrost migrated twice as fast as analogous riverbends through permafrost terrain.
"The research is part of a larger effort to understand the dynamics of rivers and how they transport carbon, nutrients, and other materials trapped in the soil.
"'River migration has implications for local communities and infrastructure, and also for the Arctic environment,' Lamb says. 'About 1,500 gigatons of #carbon are stored in the frozen permafrost—about twice as much carbon as in the atmosphere, for comparison. There is also #mercury frozen in the soil that could be liberated into rivers as permafrost thaws. We are, ultimately, trying to understand what happens to these elements in the context of river erosion.'
"The work was a collaboration with local Alaska #Native communities, in particular from the town of #Huslia."
Read more:
https://www.caltech.edu/about/news/permafrost-thaw-may-cause-arctic-river-erosion-to-speed-up#GlobalWarming #PermafrostMelt #MercuryPoisoning #CarbonSinks #WaterIsLife #ClimateChange #Arctic #Alaska
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#Permafrost Thaw May Cause #Arctic River Erosion to Speed Up
October 09, 2024
"Permafrost, the thick layer of perennially frozen ground that covers much of the Arctic, slows down the migration of Arctic rivers, according to a new Caltech study. River migration is a common process in which a river's path meanders over time due to erosion of the riverbanks. This rerouting, which can also occur in #SuddenFloods, poses a threat for many communities that live along and depend on rivers. The findings also have implications for how the Arctic region will be impacted by a warming climate as permafrost thaws over time.
"The research was conducted in the Caltech laboratory of Michael Lamb, professor of geology, and is described in a paper appearing in the journal Nature on October 9.
"Led by graduate student Emily Geyman, the study focused on the #KoyukukRiver, a large tributary of the #YukonRiver that winds for hundreds of miles through interior Alaska. There was debate within the scientific community about whether the frozen soil along the riverbanks serves to fortify the banks against erosion or to promote it.
"'Large rivers like the Yukon or the Amazon can move tens to hundreds of feet per year,' Geyman says. "Arctic rivers in particular differ from temperate rivers because they need to thaw the material of their banks before they can pick that material up and move it.'
"Due to #ClimateChange, permafrost is slowly thawing over decades. But a river can experience drastic natural changes within a single year, with flow conditions changing from very cold and fast in early spring to warm and slow a few months later. Geyman and her collaborators leveraged these major changes that take place within a single season to gain a glimpse into how the rivers will behave in response to climate change decades or centuries into the future.
"In spring, the Koyukuk River swells in volume from snowmelt, flowing with fast, cold water. For more temperate rivers, a fast flow means more erosion. But in the Arctic, the temperature of the water matters—cold water is unable to thaw the frozen banks in order to migrate.
"In the new study, Geyman and her collaborators used satellite imagery of the Koyukuk over the past several years and developed a technique to decode high-resolution changes from the images. The team hypothesized that if permafrost was slowing the river's migration, they should only see migration later in the summer when the river water has warmed up. Their hypothesis matched with the satellite data, suggesting that permafrost does, in fact, slow down river migration.
"Next, the team compared sections of the river that flow through permafrost with those that do not. The Koyukuk is special because it traverses a patchwork of both permafrost and unfrozen ground. The team traveled to the Arctic to map the erosion on various bends of the river and found that sections without permafrost migrated twice as fast as analogous riverbends through permafrost terrain.
"The research is part of a larger effort to understand the dynamics of rivers and how they transport carbon, nutrients, and other materials trapped in the soil.
"'River migration has implications for local communities and infrastructure, and also for the Arctic environment,' Lamb says. 'About 1,500 gigatons of #carbon are stored in the frozen permafrost—about twice as much carbon as in the atmosphere, for comparison. There is also #mercury frozen in the soil that could be liberated into rivers as permafrost thaws. We are, ultimately, trying to understand what happens to these elements in the context of river erosion.'
"The work was a collaboration with local Alaska #Native communities, in particular from the town of #Huslia."
Read more:
https://www.caltech.edu/about/news/permafrost-thaw-may-cause-arctic-river-erosion-to-speed-up#GlobalWarming #PermafrostMelt #MercuryPoisoning #CarbonSinks #WaterIsLife #ClimateChange #Arctic #Alaska
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#Permafrost Thaw May Cause #Arctic River Erosion to Speed Up
October 09, 2024
"Permafrost, the thick layer of perennially frozen ground that covers much of the Arctic, slows down the migration of Arctic rivers, according to a new Caltech study. River migration is a common process in which a river's path meanders over time due to erosion of the riverbanks. This rerouting, which can also occur in #SuddenFloods, poses a threat for many communities that live along and depend on rivers. The findings also have implications for how the Arctic region will be impacted by a warming climate as permafrost thaws over time.
"The research was conducted in the Caltech laboratory of Michael Lamb, professor of geology, and is described in a paper appearing in the journal Nature on October 9.
"Led by graduate student Emily Geyman, the study focused on the #KoyukukRiver, a large tributary of the #YukonRiver that winds for hundreds of miles through interior Alaska. There was debate within the scientific community about whether the frozen soil along the riverbanks serves to fortify the banks against erosion or to promote it.
"'Large rivers like the Yukon or the Amazon can move tens to hundreds of feet per year,' Geyman says. "Arctic rivers in particular differ from temperate rivers because they need to thaw the material of their banks before they can pick that material up and move it.'
"Due to #ClimateChange, permafrost is slowly thawing over decades. But a river can experience drastic natural changes within a single year, with flow conditions changing from very cold and fast in early spring to warm and slow a few months later. Geyman and her collaborators leveraged these major changes that take place within a single season to gain a glimpse into how the rivers will behave in response to climate change decades or centuries into the future.
"In spring, the Koyukuk River swells in volume from snowmelt, flowing with fast, cold water. For more temperate rivers, a fast flow means more erosion. But in the Arctic, the temperature of the water matters—cold water is unable to thaw the frozen banks in order to migrate.
"In the new study, Geyman and her collaborators used satellite imagery of the Koyukuk over the past several years and developed a technique to decode high-resolution changes from the images. The team hypothesized that if permafrost was slowing the river's migration, they should only see migration later in the summer when the river water has warmed up. Their hypothesis matched with the satellite data, suggesting that permafrost does, in fact, slow down river migration.
"Next, the team compared sections of the river that flow through permafrost with those that do not. The Koyukuk is special because it traverses a patchwork of both permafrost and unfrozen ground. The team traveled to the Arctic to map the erosion on various bends of the river and found that sections without permafrost migrated twice as fast as analogous riverbends through permafrost terrain.
"The research is part of a larger effort to understand the dynamics of rivers and how they transport carbon, nutrients, and other materials trapped in the soil.
"'River migration has implications for local communities and infrastructure, and also for the Arctic environment,' Lamb says. 'About 1,500 gigatons of #carbon are stored in the frozen permafrost—about twice as much carbon as in the atmosphere, for comparison. There is also #mercury frozen in the soil that could be liberated into rivers as permafrost thaws. We are, ultimately, trying to understand what happens to these elements in the context of river erosion.'
"The work was a collaboration with local Alaska #Native communities, in particular from the town of #Huslia."
Read more:
https://www.caltech.edu/about/news/permafrost-thaw-may-cause-arctic-river-erosion-to-speed-up#GlobalWarming #PermafrostMelt #MercuryPoisoning #CarbonSinks #WaterIsLife #ClimateChange #Arctic #Alaska
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#Permafrost Thaw May Cause #Arctic River Erosion to Speed Up
October 09, 2024
"Permafrost, the thick layer of perennially frozen ground that covers much of the Arctic, slows down the migration of Arctic rivers, according to a new Caltech study. River migration is a common process in which a river's path meanders over time due to erosion of the riverbanks. This rerouting, which can also occur in #SuddenFloods, poses a threat for many communities that live along and depend on rivers. The findings also have implications for how the Arctic region will be impacted by a warming climate as permafrost thaws over time.
"The research was conducted in the Caltech laboratory of Michael Lamb, professor of geology, and is described in a paper appearing in the journal Nature on October 9.
"Led by graduate student Emily Geyman, the study focused on the #KoyukukRiver, a large tributary of the #YukonRiver that winds for hundreds of miles through interior Alaska. There was debate within the scientific community about whether the frozen soil along the riverbanks serves to fortify the banks against erosion or to promote it.
"'Large rivers like the Yukon or the Amazon can move tens to hundreds of feet per year,' Geyman says. "Arctic rivers in particular differ from temperate rivers because they need to thaw the material of their banks before they can pick that material up and move it.'
"Due to #ClimateChange, permafrost is slowly thawing over decades. But a river can experience drastic natural changes within a single year, with flow conditions changing from very cold and fast in early spring to warm and slow a few months later. Geyman and her collaborators leveraged these major changes that take place within a single season to gain a glimpse into how the rivers will behave in response to climate change decades or centuries into the future.
"In spring, the Koyukuk River swells in volume from snowmelt, flowing with fast, cold water. For more temperate rivers, a fast flow means more erosion. But in the Arctic, the temperature of the water matters—cold water is unable to thaw the frozen banks in order to migrate.
"In the new study, Geyman and her collaborators used satellite imagery of the Koyukuk over the past several years and developed a technique to decode high-resolution changes from the images. The team hypothesized that if permafrost was slowing the river's migration, they should only see migration later in the summer when the river water has warmed up. Their hypothesis matched with the satellite data, suggesting that permafrost does, in fact, slow down river migration.
"Next, the team compared sections of the river that flow through permafrost with those that do not. The Koyukuk is special because it traverses a patchwork of both permafrost and unfrozen ground. The team traveled to the Arctic to map the erosion on various bends of the river and found that sections without permafrost migrated twice as fast as analogous riverbends through permafrost terrain.
"The research is part of a larger effort to understand the dynamics of rivers and how they transport carbon, nutrients, and other materials trapped in the soil.
"'River migration has implications for local communities and infrastructure, and also for the Arctic environment,' Lamb says. 'About 1,500 gigatons of #carbon are stored in the frozen permafrost—about twice as much carbon as in the atmosphere, for comparison. There is also #mercury frozen in the soil that could be liberated into rivers as permafrost thaws. We are, ultimately, trying to understand what happens to these elements in the context of river erosion.'
"The work was a collaboration with local Alaska #Native communities, in particular from the town of #Huslia."
Read more:
https://www.caltech.edu/about/news/permafrost-thaw-may-cause-arctic-river-erosion-to-speed-up#GlobalWarming #PermafrostMelt #MercuryPoisoning #CarbonSinks #WaterIsLife #ClimateChange #Arctic #Alaska
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Melting Permafrost Releasing Mercury Into Alaska's Yukon River
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https://thehill.com/policy/energy-environment/4829536-climate-change-mercury-permafrost-arctic-study/ <-- shared media article
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https://doi.org/10.1088/1748-9326/ad536e <-- shared paper
--
#GIS #spatial #mapping #mercury #Hg #Alaska #Yukon #YukonRiver #climatechange #waterquality #water #hydrology #BeringSea #permafrost #melting #risk #hazard #ecosystems #habitat #fisheries #metal #heavymetals #mercurybomb #pollutants #arctic #boreal #plants #vegetation #soil #geomorphology #YukonRiverBasin -
Melting Permafrost Releasing Mercury Into Alaska's Yukon River
--
https://thehill.com/policy/energy-environment/4829536-climate-change-mercury-permafrost-arctic-study/ <-- shared media article
--
https://doi.org/10.1088/1748-9326/ad536e <-- shared paper
--
#GIS #spatial #mapping #mercury #Hg #Alaska #Yukon #YukonRiver #climatechange #waterquality #water #hydrology #BeringSea #permafrost #melting #risk #hazard #ecosystems #habitat #fisheries #metal #heavymetals #mercurybomb #pollutants #arctic #boreal #plants #vegetation #soil #geomorphology #YukonRiverBasin -
Melting Permafrost Releasing Mercury Into Alaska's Yukon River
--
https://thehill.com/policy/energy-environment/4829536-climate-change-mercury-permafrost-arctic-study/ <-- shared media article
--
https://doi.org/10.1088/1748-9326/ad536e <-- shared paper
--
#GIS #spatial #mapping #mercury #Hg #Alaska #Yukon #YukonRiver #climatechange #waterquality #water #hydrology #BeringSea #permafrost #melting #risk #hazard #ecosystems #habitat #fisheries #metal #heavymetals #mercurybomb #pollutants #arctic #boreal #plants #vegetation #soil #geomorphology #YukonRiverBasin -
Melting Permafrost Releasing Mercury Into Alaska's Yukon River
--
https://thehill.com/policy/energy-environment/4829536-climate-change-mercury-permafrost-arctic-study/ <-- shared media article
--
https://doi.org/10.1088/1748-9326/ad536e <-- shared paper
--
#GIS #spatial #mapping #mercury #Hg #Alaska #Yukon #YukonRiver #climatechange #waterquality #water #hydrology #BeringSea #permafrost #melting #risk #hazard #ecosystems #habitat #fisheries #metal #heavymetals #mercurybomb #pollutants #arctic #boreal #plants #vegetation #soil #geomorphology #YukonRiverBasin -
Melting Permafrost Releasing Mercury Into Alaska's Yukon River
--
https://thehill.com/policy/energy-environment/4829536-climate-change-mercury-permafrost-arctic-study/ <-- shared media article
--
https://doi.org/10.1088/1748-9326/ad536e <-- shared paper
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#GIS #spatial #mapping #mercury #Hg #Alaska #Yukon #YukonRiver #climatechange #waterquality #water #hydrology #BeringSea #permafrost #melting #risk #hazard #ecosystems #habitat #fisheries #metal #heavymetals #mercurybomb #pollutants #arctic #boreal #plants #vegetation #soil #geomorphology #YukonRiverBasin -
Bereits vor Jahren wurde erkannt, dass regional einzelne #Permafrostgebiete auffällig stark tauen. Sie werden zuerst an die #globaleErwärmung verloren gehen.
#Permafrostböden sind dagegen kein globales Kippelemente. Das #Auftauen erfolgt proportional zur globalen #Erwärmung, ohne einen plötzlichen #Kollaps.
#Klimawandel #Permafrost #Umwelt #Forschung #Erderwärmung
#Werbung: Grundwissen für Erwachsene:
"Der Klimawandel für Einsteiger"
https://buchshop.bod.de/der-klimawandel-fuer-einsteiger-tino-eberl-9783757895099 -
Sea of #methane sealed beneath #Arctic #permafrost could trigger climate feedback loop if it escapes
A sea of migrating methane discovered below the permafrost in Svalbard may eventually escape its icy prison if the permafrost continues to thaw due to #ClimateChange.
By Sascha Pare
published December 20, 2023"Deep beneath the permafrost that blankets a group of islands in the #ArcticOcean lurks a growing and migrating sea of methane, researchers have discovered.
"The thick permafrost, or ground that remains frozen for at least two years, forms a tight seal that has so far prevented millions of cubic feet of methane from wafting out — but there's no guarantee that the potent greenhouse gas won't eventually escape, according to a study published Dec. 13 in the journal Frontiers in Earth Science.
"At present, the leakage from below permafrost is very low, but factors such as glacial retreat and permafrost thawing may 'lift the lid' on this in the future," lead author Thomas Birchall, a geologist at the University Center in Svalbard in Norway, said in a statement."
#MethaneLeaks #Methane #ArcticOcean #Norway #Svalsbad #ClimateChange #ClimateCrisis #GlobalWarming #Copernicus #GreenhouseGas #Collapse #MethaneBomb #ClimateFeedbackloop
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Sea of #methane sealed beneath #Arctic #permafrost could trigger climate feedback loop if it escapes
A sea of migrating methane discovered below the permafrost in Svalbard may eventually escape its icy prison if the permafrost continues to thaw due to #ClimateChange.
By Sascha Pare
published December 20, 2023"Deep beneath the permafrost that blankets a group of islands in the #ArcticOcean lurks a growing and migrating sea of methane, researchers have discovered.
"The thick permafrost, or ground that remains frozen for at least two years, forms a tight seal that has so far prevented millions of cubic feet of methane from wafting out — but there's no guarantee that the potent greenhouse gas won't eventually escape, according to a study published Dec. 13 in the journal Frontiers in Earth Science.
"At present, the leakage from below permafrost is very low, but factors such as glacial retreat and permafrost thawing may 'lift the lid' on this in the future," lead author Thomas Birchall, a geologist at the University Center in Svalbard in Norway, said in a statement."
#MethaneLeaks #Methane #ArcticOcean #Norway #Svalsbad #ClimateChange #ClimateCrisis #GlobalWarming #Copernicus #GreenhouseGas #Collapse #MethaneBomb #ClimateFeedbackloop
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Sea of #methane sealed beneath #Arctic #permafrost could trigger climate feedback loop if it escapes
A sea of migrating methane discovered below the permafrost in Svalbard may eventually escape its icy prison if the permafrost continues to thaw due to #ClimateChange.
By Sascha Pare
published December 20, 2023"Deep beneath the permafrost that blankets a group of islands in the #ArcticOcean lurks a growing and migrating sea of methane, researchers have discovered.
"The thick permafrost, or ground that remains frozen for at least two years, forms a tight seal that has so far prevented millions of cubic feet of methane from wafting out — but there's no guarantee that the potent greenhouse gas won't eventually escape, according to a study published Dec. 13 in the journal Frontiers in Earth Science.
"At present, the leakage from below permafrost is very low, but factors such as glacial retreat and permafrost thawing may 'lift the lid' on this in the future," lead author Thomas Birchall, a geologist at the University Center in Svalbard in Norway, said in a statement."
#MethaneLeaks #Methane #ArcticOcean #Norway #Svalsbad #ClimateChange #ClimateCrisis #GlobalWarming #Copernicus #GreenhouseGas #Collapse #MethaneBomb #ClimateFeedbackloop
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Sea of #methane sealed beneath #Arctic #permafrost could trigger climate feedback loop if it escapes
A sea of migrating methane discovered below the permafrost in Svalbard may eventually escape its icy prison if the permafrost continues to thaw due to #ClimateChange.
By Sascha Pare
published December 20, 2023"Deep beneath the permafrost that blankets a group of islands in the #ArcticOcean lurks a growing and migrating sea of methane, researchers have discovered.
"The thick permafrost, or ground that remains frozen for at least two years, forms a tight seal that has so far prevented millions of cubic feet of methane from wafting out — but there's no guarantee that the potent greenhouse gas won't eventually escape, according to a study published Dec. 13 in the journal Frontiers in Earth Science.
"At present, the leakage from below permafrost is very low, but factors such as glacial retreat and permafrost thawing may 'lift the lid' on this in the future," lead author Thomas Birchall, a geologist at the University Center in Svalbard in Norway, said in a statement."
#MethaneLeaks #Methane #ArcticOcean #Norway #Svalsbad #ClimateChange #ClimateCrisis #GlobalWarming #Copernicus #GreenhouseGas #Collapse #MethaneBomb #ClimateFeedbackloop
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During the 2023 American Geophysical Union Annual Fall Meeting University of #Vermont based Abigail Rec told us that while thawing #permafrost will have an affect on how the #EarthSystem functions, there's no need to be fearful.
#EnvironmentalScience #SciComm #AGU23 #ArcticScience -
Melting permafrost, the rising sea, and storm surges have rendered Newtok—along with dozens of other Alaska Native communities in northern and western Alaska—unlivable. Most residents have been forced to relocate.
#Alaska #Newtok #ClimateChange #Relocation #Permafrost #Sinking #AlaskaNative #ClimateResponse #FEMA #Law #Legal #Funding #Community
https://hakaimagazine.com/news/could-the-alaska-government-be-on-the-hook-for-climate-refugees/
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Waar is toch dat warme voorjaar gebleven?
Spoiler-alert: In het noorden van #Rusland, waar het #methaan uit de #permafrost laat ontsnappen.
Whoppa! Extreme temperaturen voor mei boven de permafrost in Noord-Rusland, 30 graden, 25 graden te warm voor de tijd van het jaar😲