Rapid disintegration and weakening of ice shelves in North Greenland [PDF]
Nature Communications, 2023 The glaciers of North Greenland are hosting enough ice to raise sea level by 2.1 m, and have long considered to be stable. This part of Greenland is buttressed by the last remaining ice shelves of the ice sheet. Here, we show that since 1978, ice shelves
R. Millan +7 more
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Can unconfined ice shelves provide buttressing via hoop stresses? [PDF]
Journal of Glaciology, 2020 The stress balance within an ice shelf is key to the resistance, or buttressing, it can provide and in part controls the rate of ice discharge from the upstream ice sheet. Unconfined ice shelves are widely assumed to provide no buttressing.
Martin G. Wearing +2 more
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Predicting the steady-state isochronal stratigraphy of ice shelves using observations and modeling [PDF]
The Cryosphere, 2022 Ice shelves surrounding the Antarctic perimeter moderate ice discharge towards the ocean through buttressing. Ice-shelf evolution and integrity depend on the local surface accumulation, basal melting and on the spatially variable ice-shelf viscosity ...
V. Višnjević +7 more
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The marine geological imprint of Antarctic ice shelves [PDF]
Nature Communications, 2019 The recent collapses of ice shelves in Antarctica due to warming make it essential to understand past ice shelf conditions and mechanisms. Here Smith and colleagues review the latest progress in deciphering the geological imprint of Antarctic ice shelves
James A. Smith +5 more
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Change in iceberg calving behavior preceded North Sea ice shelf disintegration during the last deglaciation [PDF]
Nature CommunicationsUnderstanding how regime shifts in iceberg calving behavior affect ice shelf stability remains a challenge for numerical models. This is an important question as we consider the fate of the ice shelves that currently buttress the Antarctic Ice Sheet and ...
James D. Kirkham +15 more
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Freshening by glacial meltwater enhances melting of ice shelves and reduces formation of Antarctic Bottom Water. [PDF]
Sci Adv, 2018 Silvano A +7 more
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Change in Antarctic ice shelf area from 2009 to 2019 [PDF]
The Cryosphere, 2023 Antarctic ice shelves provide buttressing support to the ice sheet, stabilising the flow of grounded ice and its contribution to global sea levels. Over the past 50 years, satellite observations have shown ice shelves collapse, thin, and retreat; however,
J. R. Andreasen +3 more
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Ice-shelf ocean boundary layer dynamics from large-eddy simulations [PDF]
The Cryosphere, 2022 Small-scale turbulent flow below ice shelves is regionally isolated and difficult to measure and simulate. Yet these small-scale processes, which regulate heat and salt transfer between the ocean and ice shelves, can affect sea-level rise by altering ...
C. B. Begeman +2 more
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Can rifts alter ocean dynamics beneath ice shelves? [PDF]
The Cryosphere, 2023 Land ice discharge from the Antarctic continent into the ocean is restrained by ice shelves, floating extensions of grounded ice that buttress the glacier outflow.
M. Poinelli +6 more
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A 15-year circum-Antarctic iceberg calving dataset derived from continuous satellite observations [PDF]
Earth System Science Data, 2021 Iceberg calving is the main process that facilitates the dynamic mass loss of ice sheets into the ocean, which accounts for approximately half of the mass loss of the Antarctic ice sheet.
M. Qi +14 more
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