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#iceshelf

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RashaKamel

"An international team on board Schmidt Ocean Institute's R/V Falkor (too) working in the Bellingshausen Sea rapidly pivoted their research plans to study an area that was, until last month, covered by ice. On January 13, 2025, an iceberg the size of Chicago, named A-84, broke away from the George VI Ice Shelf, one of the massive floating glaciers attached to the Antarctic Peninsula ice sheet".

#Antarctic #iceshelf #glaciers
phys.org/news/2025-03-antarcti

Phys.org · Thriving Antarctic ecosystems found in wake of recently detached icebergBy Schmidt Ocean Institute
Public
Benjamin Carr, Ph.D. 👨🏻‍💻🧬

#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.
thwaitesglacier.org/news/thwai #climatechange #climtecrisis

thwaitesglacier.orgITGC Thwaites Glacier
Public
Benjamin Carr, Ph.D. 👨🏻‍💻🧬

'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.
livescience.com/planet-earth/a

Live Science · 'Warm water' from deep sea flowing towards one of Antarctica's largest ice shelvesBy Patrick Pester
Public
Nicole Sharp

More than a tenth of Antarctica’s ice projects out over the sea; this ice shelf preserves glacial ice that would otherwise fall into the Southern Ocean and raise global sea levels. But austral summers eat away at the ice, leaving meltwater collected in ponds (visible above in bright blue) and in harder-to-spot slush. Researchers taught a machine-learning algorithm to identify slush and ponds in satellite images, then used the algorithm to analyze nine years’ worth of imagery.

The group found that slush makes up about 57% of the overall meltwater. It is also darker than pure snow, absorbing more sunlight and leading to more melting. Many climate models currently neglect slush, and the authors warn that, without it, models will underestimate how much the ice is melting and predict that the ice is more stable than it truly is. (Image credit: Copernicus Sentinel/R. Dell; research credit: R. Dell et al.; via Physics Today)

https://fyfluiddynamics.com/2024/10/slushy-snow-affects-antarctic-ice-melt/

This satellite image shows meltwater slush and lakes on the top of Antarctica's Bach Ice Shelf.
#antarctica#climateChange#fluidDynamics
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Nonilex

@martinvermeer

“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.

Public
Mongabay

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
news.mongabay.com/2024/08/high

Mongabay Environmental News · High-resolution maps reveal surprises about how ice shelves meltWhen Anna Wåhlin and her colleagues deployed a submersible vehicle to go under the ice in Antarctica, they meant for it to serve as a proof of concept for the technology. Instead, what they found has left them more mystified than ever. The first detailed maps from the underside of the Doston Ice Shelf in […]
#News#Environment#Conservation
Public
formuchdeliberation

Underwater mapping reveals new insights into melting of Antarctica’s ice shelves…

An ice shelf is a mass of glacial ice, fed from land by tributary glaciers, that floats in the sea above an ice shelf cavity. Dotson Ice Shelf is part of the West Antarctic ice sheet—and next to Thwaites Glacier—which is considered to have a potentially large impact on future sea level rise due to its size and location... Phys.org #antarctica #iceshelf #icesheets #glaciers #westantarctica…

formuchdeliberation.wordpress.

for much deliberation · Underwater mapping reveals new insights into melting of Antarctica’s ice shelves…An ice shelf is a mass of glacial ice, fed from land by tributary glaciers, that floats in the sea above an ice shelf cavity. Dotson Ice Shelf is part of the West Antarctic ice sheet—and next to Th…
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💧🌏 Greg Cocks

SWAIS2C Core Workshop Offers First Glimpse Of Sediment From Below Ross Ice Shelf [GNS Science, New Zealand]
--
gns.cri.nz/news/swais2c-core-w <-- shared technical article
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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

photo - The core is scored with a saw before manual splitting
graphic - SWAIS2C home page splash screen
photo - inspecting sediment core
photo - sediment core drilling site, Ross Ice shelf, Antarctica
Public
formuchdeliberation

In Antarctica, massive glaciers are constantly shifting. Ice streams, which act like conveyor belts, are the pathways of accelerated movement that transport the majority of the ice and sediment debris from these extensive glaciers towards the ocean... #climatechange #antarctica #rossiceshelf #melting #meltingice #geophysics #iceshelf #IceStream #glaciers #globalwarming scitechdaily.com/the-largest-i

SciTechDaily · The Largest Ice Shelf in Antarctica Is Behaving OddlyThe activity of an ice stream has caused the Ross Ice Shelf to suddenly displace. In Antarctica, massive glaciers are constantly shifting. Ice streams, which act like conveyor belts, are the pathways of accelerated movement that transport the majority of the ice and sediment debris from these exten
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