Results 21 to 30 of about 478,422 (316)

Change in iceberg calving behavior preceded North Sea ice shelf disintegration during the last deglaciation [PDF]

open access: yesNature Communications
Understanding 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
doaj   +2 more sources

Calving glaciers and ice shelves [PDF]

open access: yesAdvances in Physics: X, 2018
Calving, or the release of icebergs from glaciers and floating ice shelves, is an important process transferring mass into the world’s oceans. Calving glaciers and ice sheets make a large contribution to sea-level rise, but large uncertainty remains about future ice sheet response to alternative carbon scenarios.
Douglas I. Benn, Jan A. Åström
openaire   +5 more sources

The suppression of Antarctic bottom water formation by melting ice shelves in Prydz Bay. [PDF]

open access: yesNat Commun, 2016
A fourth production region for the globally important Antarctic bottom water has been attributed to dense shelf water formation in the Cape Darnley Polynya, adjoining Prydz Bay in East Antarctica.
Williams GD   +11 more
europepmc   +2 more sources

Stability of Ice Shelves and Ice Cliffs in a Changing Climate

open access: yesAnnual Review of Earth and Planetary Sciences
The largest uncertainty in future sea-level rise is loss of ice from the Greenland and Antarctic Ice Sheets. Ice shelves, freely floating platforms of ice that fringe the ice sheets, play a crucial role in restraining discharge of grounded ice into the ocean through buttressing. However, since the 1990s, several ice shelves have thinned, retreated, and
Bassis, Jeremy N.   +9 more
openaire   +5 more sources

Change in Antarctic ice shelf area from 2009 to 2019 [PDF]

open access: yesThe 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
doaj   +1 more source

Can rifts alter ocean dynamics beneath ice shelves? [PDF]

open access: yesThe 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
doaj   +1 more source

Ice-shelf ocean boundary layer dynamics from large-eddy simulations [PDF]

open access: yesThe 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
doaj   +1 more source

The role of föhn winds in eastern Antarctic Peninsula rapid ice shelf collapse [PDF]

open access: yesThe Cryosphere, 2022
Ice shelf collapse reduces buttressing and enables grounded glaciers to contribute more rapidly to sea-level rise in a warming climate. The abrupt collapses of the Larsen A (1995) and B (2002) ice shelves on the Antarctic Peninsula (AP) occurred, at ...
M. K. Laffin   +4 more
doaj   +1 more source

Variable temperature thresholds of melt pond formation on Antarctic ice shelves

open access: yesNature Climate Change, 2023
Melt ponding is an important process for the stability of ice shelves. Here the authors estimate the temperature thresholds at which melt ponding emerges over Antarctic ice shelves and find that cold and dry ice shelves are more vulnerable to melt ...
J. M. van Wessem   +3 more
semanticscholar   +1 more source

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