#iceshelf — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #iceshelf, aggregated by home.social.
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#Antarctic #IceShelf #IceMelt #feedbackloop #WaterStratification
Original open access article
Suganuma et al. 07 Nov. 2025, Nat. Geosci.
Antarctic ice-shelf collapse in Holocene driven by meltwater release feedback
https://doi.org/10.1038/s41561-025-01829-7
#ClimateScience #climatechange #ClimateEmergency #ClimateCrisis #ClimateBreakdown #ClimateDisruption #globalWarming #globalHeating #ExtremeWeather
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#Antarctic #IceShelf #IceMelt #feedbackloop #WaterStratification
Original open access article
Suganuma et al. 07 Nov. 2025, Nat. Geosci.
Antarctic ice-shelf collapse in Holocene driven by meltwater release feedback
https://doi.org/10.1038/s41561-025-01829-7
#ClimateScience #climatechange #ClimateEmergency #ClimateCrisis #ClimateBreakdown #ClimateDisruption #globalWarming #globalHeating #ExtremeWeather
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#Antarctic #IceShelf #IceMelt #feedbackloop #WaterStratification
Original open access article
Suganuma et al. 07 Nov. 2025, Nat. Geosci.
Antarctic ice-shelf collapse in Holocene driven by meltwater release feedback
https://doi.org/10.1038/s41561-025-01829-7
#ClimateScience #climatechange #ClimateEmergency #ClimateCrisis #ClimateBreakdown #ClimateDisruption #globalWarming #globalHeating #ExtremeWeather
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#Antarctic #IceShelf #IceMelt #feedbackloop #WaterStratification
Original open access article
Suganuma et al. 07 Nov. 2025, Nat. Geosci.
Antarctic ice-shelf collapse in Holocene driven by meltwater release feedback
https://doi.org/10.1038/s41561-025-01829-7
#ClimateScience #climatechange #ClimateEmergency #ClimateCrisis #ClimateBreakdown #ClimateDisruption #globalWarming #globalHeating #ExtremeWeather
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#Antarctic #IceShelf #IceMelt #feedbackloop #WaterStratification
Original open access article
Suganuma et al. 07 Nov. 2025, Nat. Geosci.
Antarctic ice-shelf collapse in Holocene driven by meltwater release feedback
https://doi.org/10.1038/s41561-025-01829-7
#ClimateScience #climatechange #ClimateEmergency #ClimateCrisis #ClimateBreakdown #ClimateDisruption #globalWarming #globalHeating #ExtremeWeather
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RE: https://mastodon.social/@paulbeckwith/115550068008392630
#FYI #PaulBeckwith video lecture and literature review #Antarctic #IceShelf #IceMelt #feedback #WaterStratification
15:31 "volume equivalent to 58 m of global sea level rise just in Antarctic ice sheet alone."
16:56 "we're always underestimating the speed at which things are happening"https://www.youtube.com/watch?v=IkdXL_VUVCo
#climatechange #ClimateEmergency #ClimateBreakdown #ClimateDisruption #globalWarming #globalHeating #ExtremeWeather
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Tides Widen Ice Cracks
When icebergs calve off of Arctic and Antarctic coastlines, it affects glacial flows upstream as well as local mixing between fresh- and seawater. A recent study points to ocean tides as a major factor in widening the ice cracks that lead to calving. The team built a simplified mathematical model of an ice shelf, taking into account the ice’s viscoelasticity, local tides, and winds. Then they compared the model’s predictions with satellite, GPS, and radar data of Antarctica’s Brunt Ice Shelf, where an iceberg the size of Greater London broke off in 2023.
Between their model and the observation data, the team was able to show that the crack that preceded calving consistently grew during the spring tides, when tidal forces were at their strongest. The work gives us one more clue for refining our predictions of when major calving events are likely. (Image and research credit: O. Marsh et al.; via Gizmodo)
#calving #fluidDynamics #iceShelf #iceberg #oceanTides #physics #science #viscoelasticity
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Tides Widen Ice Cracks
When icebergs calve off of Arctic and Antarctic coastlines, it affects glacial flows upstream as well as local mixing between fresh- and seawater. A recent study points to ocean tides as a major factor in widening the ice cracks that lead to calving. The team built a simplified mathematical model of an ice shelf, taking into account the ice’s viscoelasticity, local tides, and winds. Then they compared the model’s predictions with satellite, GPS, and radar data of Antarctica’s Brunt Ice Shelf, where an iceberg the size of Greater London broke off in 2023.
Between their model and the observation data, the team was able to show that the crack that preceded calving consistently grew during the spring tides, when tidal forces were at their strongest. The work gives us one more clue for refining our predictions of when major calving events are likely. (Image and research credit: O. Marsh et al.; via Gizmodo)
#calving #fluidDynamics #iceShelf #iceberg #oceanTides #physics #science #viscoelasticity
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Tides Widen Ice Cracks
When icebergs calve off of Arctic and Antarctic coastlines, it affects glacial flows upstream as well as local mixing between fresh- and seawater. A recent study points to ocean tides as a major factor in widening the ice cracks that lead to calving. The team built a simplified mathematical model of an ice shelf, taking into account the ice’s viscoelasticity, local tides, and winds. Then they compared the model’s predictions with satellite, GPS, and radar data of Antarctica’s Brunt Ice Shelf, where an iceberg the size of Greater London broke off in 2023.
Between their model and the observation data, the team was able to show that the crack that preceded calving consistently grew during the spring tides, when tidal forces were at their strongest. The work gives us one more clue for refining our predictions of when major calving events are likely. (Image and research credit: O. Marsh et al.; via Gizmodo)
#calving #fluidDynamics #iceShelf #iceberg #oceanTides #physics #science #viscoelasticity
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Tides Widen Ice Cracks
When icebergs calve off of Arctic and Antarctic coastlines, it affects glacial flows upstream as well as local mixing between fresh- and seawater. A recent study points to ocean tides as a major factor in widening the ice cracks that lead to calving. The team built a simplified mathematical model of an ice shelf, taking into account the ice’s viscoelasticity, local tides, and winds. Then they compared the model’s predictions with satellite, GPS, and radar data of Antarctica’s Brunt Ice Shelf, where an iceberg the size of Greater London broke off in 2023.
Between their model and the observation data, the team was able to show that the crack that preceded calving consistently grew during the spring tides, when tidal forces were at their strongest. The work gives us one more clue for refining our predictions of when major calving events are likely. (Image and research credit: O. Marsh et al.; via Gizmodo)
#calving #fluidDynamics #iceShelf #iceberg #oceanTides #physics #science #viscoelasticity
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Tides Widen Ice Cracks
When icebergs calve off of Arctic and Antarctic coastlines, it affects glacial flows upstream as well as local mixing between fresh- and seawater. A recent study points to ocean tides as a major factor in widening the ice cracks that lead to calving. The team built a simplified mathematical model of an ice shelf, taking into account the ice’s viscoelasticity, local tides, and winds. Then they compared the model’s predictions with satellite, GPS, and radar data of Antarctica’s Brunt Ice Shelf, where an iceberg the size of Greater London broke off in 2023.
Between their model and the observation data, the team was able to show that the crack that preceded calving consistently grew during the spring tides, when tidal forces were at their strongest. The work gives us one more clue for refining our predictions of when major calving events are likely. (Image and research credit: O. Marsh et al.; via Gizmodo)
#calving #fluidDynamics #iceShelf #iceberg #oceanTides #physics #science #viscoelasticity
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Just published:
Zeising, O., Hattermann, T., Kaleschke, L., Berger, S., Boebel, O., Drews, R., Ershadi, M. R., Fromm, T., Pattyn, F., Steinhage, D., and Eisen, O.: Enhanced basal melting in winter and spring: seasonal ice–ocean interactions at the Ekström Ice Shelf, East Antarctica, The Cryosphere, 19, 2837–2854, https://doi.org/10.5194/tc-19-2837-2025, 2025.
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Ponding on the Ice Shelf
Glaciers flow together and march out to sea along the Amery Ice Shelf in this satellite image of Antarctica. Three glaciers — flowing from the top, left, and bottom of the image — meet just to the right of center and pass from the continental bedrock onto the ice-covered ocean. The ice shelf is recognizable by its plethora of meltwater ponds, which appear as bright blue areas. Each austral summer, meltwater gathers in low-lying regions on the ice, potentially destabilizing the ice shelf through fracture and drainage. This region near the ice shelf’s grounding line is particularly prone to ponding. Regions further afield (right, beyond the image) are colder and drier, often allowing meltwater to refreeze. (Image credit: W. Liang; via NASA Earth Observatory)
#fluidDynamics #geophysics #glacier #iceShelf #melting #physics #planetaryScience #satelliteImage #science
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Researchers were working off the coast of #Antarctica when it happened: A gigantic #iceberg about 19 miles long cracked off the #IceShelf on Jan 13, revealing a swath of #ocean that had not seen daylight in decades.
The team aboard a #research vessel called the Falkor (too) decided to search the seafloor under the freshly exposed ocean. No human had ever explored the deep sea there before.
#science #discovery #climate #ClimateChange -
In Good News / Bad News ?
A huge #iceberg broke off #Antarctica. What scientists found under it startled them.
Crustaceans, snails, worms & fish are among the dozens of creatures that deep-sea explorers discovered under a massive Antarctic #IceShelf.#science #discovery #research #climate #ClimateChange
https://www.washingtonpost.com/climate-environment/2025/03/20/huge-iceberg-broke-off-antarctica-what-scientists-found-under-it-startled-them/ -
#Thwaites Eastern #IceShelf nearing collapse as cracks spread, not because of melting
These findings and further computer modeling suggest that, while warm #ocean waters are preconditioning ice loss in West #Antarctica, the ongoing internal destabilisation now poses the greatest threat to the Thwaites Eastern Ice Shelf. The ice shelf is in its final phase of disintegration as these cracks grow, independent of melting from below.
https://thwaitesglacier.org/news/thwaites-eastern-ice-shelf-cracks-spread-not-because-melting #climatechange #climtecrisis -
'Warm water' from #deepsea flowing towards one of #Antarctica's largest #iceshelves
Antarctica's Filchner-Ronne #IceShelf may be under threat due to relatively warm water from the deep sea flowing towards the shelf.
The melting of a massive ice shelf like FRIS would ultimately lead to huge #sealevelrise. However, researchers still have a lot to learn about this region, and it's unclear whether the increased flow of warm water is linked to #climatechange.
https://www.livescience.com/planet-earth/antarctica/warm-water-from-deep-sea-flowing-towards-one-of-antarcticas-largest-ice-shelves -
#KnowledgeBit: The Ross Ice Shelf is the largest #IceShelf of Antarctica (as of 2013, an area of roughly 500,809 square km, about the size of France). It is several hundred metres thick. Ninety percent of the floating ice, however, is below the water surface.
The ice shelf is named after Sir James Clark Ross, who discovered it on 28 January 1841.
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Current antarctic sea ice concentration & extent
#Antarctica #Antarctic #AntarcticSea #Climate #ClimateChange #Earth #ice #iceshelf #nsidc #research #SeaIce #snow #southpole
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Current antarctic sea ice concentration & extent
#Antarctica #Antarctic #AntarcticSea #Climate #ClimateChange #Earth #ice #iceshelf #nsidc #research #SeaIce #snow #southpole
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Current antarctic sea ice concentration & extent
#Antarctica #Antarctic #AntarcticSea #Climate #ClimateChange #Earth #ice #iceshelf #nsidc #research #SeaIce #snow #southpole
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Current antarctic sea ice concentration & extent
#Antarctica #Antarctic #AntarcticSea #Climate #ClimateChange #Earth #ice #iceshelf #nsidc #research #SeaIce #snow #southpole
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Revolutionary Submarine [Maps] Ice Shelf Mysteries, Then Disappears Without A Trace
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https://scitechdaily.com/revolutionary-submarine-discovers-ice-shelf-mysteries-then-disappears-without-a-trace/ <-- shared technical article
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https://doi.org/10.1126/sciadv.adn9188 <-- shared paper
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#GIS #spatial #mapping #remotesensing #ROV #submersible #underwater #marine #submarine #Antarctica #glacier #iceshelf #dotson #survey #ice #subsurface #cryosphere #model #modeling #Ran #WestAntarctica #melt #melting #climatechange #warming #sealevel #sealevelrise #SLR #sonar #bathymetry #currents #model #modeling #age #dating #morphology #geomorphometry -
Current antarctic sea ice concentration & extent
#Antarctica #Antarctic #AntarcticSea #Climate #ClimateChange #Earth #ice #iceshelf #nsidc #research #SeaIce #snow #southpole
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Current antarctic sea ice concentration & extent
#Antarctica #Antarctic #AntarcticSea #Climate #ClimateChange #Earth #ice #iceshelf #nsidc #research #SeaIce #snow #southpole
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“If you only looked at the grounded ice change, you’d actually be underestimating the effect of the freshwater addition by about HALF. So, understanding & keeping track of the floating ice bit is important for those direct effects & then also those small #SeaLevel effects.”
These factors should be included in the discussion of sea level, he said, & he hopes new #climate models will reflect the details of #ocean-#IceShelf interactions, particularly in #Antarctica. -
The first detailed maps from underneath an ice shelf in Antarctica have revealed previously unknown shapes and melting patterns.
While researchers are yet to fully understand what causes the patterns in ice erosion, they say it indicates new information about how oceans are melting ice.
By Abhishyant Kidangoor
https://news.mongabay.com/2024/08/high-resolution-maps-reveal-surprises-about-how-ice-shelves-melt/ -
The brilliant @treacherousbuzz.bsky.social presenting her latest work on #IceShelf hydrology and lakes. #IGSnorthumbria2024
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The brilliant @treacherousbuzz.bsky.social presenting her latest work on #IceShelf hydrology and lakes. #IGSnorthumbria2024
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Current antarctic sea ice concentration & extent
#Antarctica #Antarctic #AntarcticSea #Climate #ClimateChange #Earth #ice #iceshelf #nsidc #research #SeaIce #snow #southpole
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Current antarctic sea ice concentration & extent
#Antarctica #Antarctic #AntarcticSea #Climate #ClimateChange #Earth #ice #iceshelf #nsidc #research #SeaIce #snow #southpole
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Current antarctic sea ice concentration & extent
#Antarctica #Antarctic #AntarcticSea #Climate #ClimateChange #Earth #ice #iceshelf #nsidc #research #SeaIce #snow #southpole
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SWAIS2C Core Workshop Offers First Glimpse Of Sediment From Below Ross Ice Shelf [GNS Science, New Zealand]
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https://www.gns.cri.nz/news/swais2c-core-workshop/ <-- shared technical article
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https://www.swais2c.aq/ <-- Sensitivity Of The West Antarctic Ice Sheet To 2° Warming (SWAIS2C) page
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#GIS #spatial #mapping #climatechange #Antarctica #SipleCoast #core #sediment #sampling #ORCA #NewZealand #SWAIS2C #Sensitivity #WesternAntarctic #IceSheet #TwoDegrees #Warming #samples #workshop #Xray #CTscan #environment #cryosphere #iceshelf #geology #sedimentology #model #modeling #spatiotemporal #drilling #coring #rossiceshelf
@GNSScience @OtagoUniversity -
Current antarctic sea ice concentration & extent
#Antarctica #Antarctic #AntarcticSea #Climate #ClimateChange #Earth #ice #iceshelf #nsidc #research #SeaIce #snow #southpole
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Current antarctic sea ice concentration & extent
#Antarctica #Antarctic #AntarcticSea #Climate #ClimateChange #Earth #ice #iceshelf #nsidc #research #SeaIce #snow #southpole
-
Current antarctic sea ice concentration & extent
#Antarctica #Antarctic #AntarcticSea #Climate #ClimateChange #Earth #ice #iceshelf #nsidc #research #SeaIce #snow #southpole
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Current antarctic sea ice concentration & extent
#Antarctica #Antarctic #AntarcticSea #Climate #ClimateChange #Earth #ice #iceshelf #nsidc #research #SeaIce #snow #southpole
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Current antarctic sea ice concentration & extent
#Antarctica #Antarctic #AntarcticSea #Climate #ClimateChange #Earth #ice #iceshelf #nsidc #research #SeaIce #snow #southpole
-
Current antarctic sea ice concentration & extent
#Antarctica #Antarctic #AntarcticSea #Climate #ClimateChange #Earth #ice #iceshelf #nsidc #research #SeaIce #snow #southpole
-
Current antarctic sea ice concentration & extent
#Antarctica #Antarctic #AntarcticSea #Climate #ClimateChange #Earth #ice #iceshelf #nsidc #research #SeaIce #snow #southpole
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Current antarctic sea ice concentration & extent
#Antarctica #Antarctic #AntarcticSea #Climate #ClimateChange #Earth #ice #iceshelf #nsidc #research #SeaIce #snow #southpole
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The Iceberg Cometh - It's The Size Of Oahu, And It's Moving Into The Open Ocean [A23a]
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https://www.npr.org/2023/12/01/1215141574/antarctica-iceberg-a23a-location <-- shared media article
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#GIS #spatial #mapping #antarctica #antarctic #iceberg #a23a #calved #largest #remotesensing #satellite #iceshelf #imagery #tracking #Druzhnaya #icestation #research #surfacewater #ocean #currents #peregrination #climatechange #seaice
U.S. Geological Survey (USGS) | British Antarctic Survey | University of Colorado Boulder | National Snow and Ice Data Center (NSIDC) -
The Iceberg Cometh - It's The Size Of Oahu, And It's Moving Into The Open Ocean [A23a]
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https://www.npr.org/2023/12/01/1215141574/antarctica-iceberg-a23a-location <-- shared media article
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#GIS #spatial #mapping #antarctica #antarctic #iceberg #a23a #calved #largest #remotesensing #satellite #iceshelf #imagery #tracking #Druzhnaya #icestation #research #surfacewater #ocean #currents #peregrination #climatechange #seaice
U.S. Geological Survey (USGS) | British Antarctic Survey | University of Colorado Boulder | National Snow and Ice Data Center (NSIDC) -
The Iceberg Cometh - It's The Size Of Oahu, And It's Moving Into The Open Ocean [A23a]
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https://www.npr.org/2023/12/01/1215141574/antarctica-iceberg-a23a-location <-- shared media article
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#GIS #spatial #mapping #antarctica #antarctic #iceberg #a23a #calved #largest #remotesensing #satellite #iceshelf #imagery #tracking #Druzhnaya #icestation #research #surfacewater #ocean #currents #peregrination #climatechange #seaice
U.S. Geological Survey (USGS) | British Antarctic Survey | University of Colorado Boulder | National Snow and Ice Data Center (NSIDC) -
The Iceberg Cometh - It's The Size Of Oahu, And It's Moving Into The Open Ocean [A23a]
--
https://www.npr.org/2023/12/01/1215141574/antarctica-iceberg-a23a-location <-- shared media article
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#GIS #spatial #mapping #antarctica #antarctic #iceberg #a23a #calved #largest #remotesensing #satellite #iceshelf #imagery #tracking #Druzhnaya #icestation #research #surfacewater #ocean #currents #peregrination #climatechange #seaice
U.S. Geological Survey (USGS) | British Antarctic Survey | University of Colorado Boulder | National Snow and Ice Data Center (NSIDC) -
The Iceberg Cometh - It's The Size Of Oahu, And It's Moving Into The Open Ocean [A23a]
--
https://www.npr.org/2023/12/01/1215141574/antarctica-iceberg-a23a-location <-- shared media article
--
#GIS #spatial #mapping #antarctica #antarctic #iceberg #a23a #calved #largest #remotesensing #satellite #iceshelf #imagery #tracking #Druzhnaya #icestation #research #surfacewater #ocean #currents #peregrination #climatechange #seaice
U.S. Geological Survey (USGS) | British Antarctic Survey | University of Colorado Boulder | National Snow and Ice Data Center (NSIDC) -
Current antarctic sea ice concentration & extent
#Antarctica #Antarctic #AntarcticSea #Climate #ClimateChange #Earth #ice #iceshelf #nsidc #research #SeaIce #snow #southpole
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Current antarctic sea ice concentration & extent
#Antarctica #Antarctic #AntarcticSea #Climate #ClimateChange #Earth #ice #iceshelf #nsidc #research #SeaIce #snow #southpole
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I *really* like this photo of an #IceShelf edge shown by Noel Gourmelen on the #Polar+ project.
It really emphasises that these are 3D and 4D problems, not the usual 2D cross section or plan view.. we really need to understand these processes to assess #Antarctic stability
#ESSI -
At today's #Tipaccs @OceanIceEU policy meeting, on #Antarctica and #TippingPoints, @nicojourd made a similar point to mine: the #RossIceShelf is the same size as the #NorthSea, predicting #iceShelf melt rates at the grounding line from an ocean point is like predicting ocean temperatures in Denmark with observations from the Atlantic. On the other side of the British Isles