Results 51 to 60 of about 5,299 (206)
Geophysical Research Letters, 2023 Antarctic ice‐shelf stability is threatened by surface melt, which has been implicated in several ice‐shelf collapse events over recent decades. Here, we first analyze cumulative days of wet snow/ice status (“melt days”) for melt seasons from 1980 to ...
Alison F. Banwell +3 more
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Vulnerable Antarctic ice shelves
Nature Climate Change, 2016 Standfirst: The decay of floating ice shelves around Antarctica speeds up ice flow from the continent and enhances sea-level rise. Now meltwater attributed to warm winds has been discovered on an East Antarctic ice shelf, suggesting greater vulnerability than previously thought.
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Basal channels on ice shelves [PDF]
Journal of Geophysical Research: Earth Surface, 2013 Recent surveys of floating ice shelves associated with Pine Island Glacier (Antarctica) and Petermann Glacier (Greenland) indicate that there are channels incised upward into their bottoms that may serve as the conduits of meltwater outflow from the sub‐ice‐shelf cavity.
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Overview of areal changes of the ice shelves on the Antarctic Peninsula over the past 50 years [PDF]
The Cryosphere, 2010 In recent decades, seven out of twelve ice shelves around the Antarctic Peninsula (AP) have either retreated significantly or have been almost entirely lost. At least some of these retreats have been shown to be unusual within the context of the Holocene
A. J. Cook, D. G. Vaughan
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A Simplified Three-Dimensional Ice-Sheet Model Including Ice Shelves [PDF]
Annals of Glaciology, 1990 We present a simplified numerical three-dimensional ice-sheet/ice-shelf model with a coarse horizontal resolution (100 km), designed for simulations of ice-volume changes on ice-age time scales (100 000 years and longer). The ice-sheet part uses the shallow-ice approximation to determine the flow, and includes a three-dimensional temperature ...
Böhmer, W., Herterich, K.
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Advances in Climate Change ResearchWidespread supraglacial lakes (SGLs) across the Antarctic surface can accelerate land ice flow and be linked to ice shelf disintegration, further affecting sea-level rise projections. However, previous studies usually focused on SGLs at regional scale or
Xiao-Yi Shen +5 more
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Journal of GlaciologyThe conditions under which ice fractures and calves icebergs from Antarctic ice shelves are poorly understood due largely to a lack of relevant observations. Though previous studies have estimated the stresses at which ice fractures in the laboratory and
Sarah Wells-Moran +2 more
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SNOWPACK simulations forced by MERRA-2 for Antarctic Ice Shelves
, 2023 Wever
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Mechanical analysis of pinning points in the Ross Ice Shelf, Antarctica
Annals of Glaciology, 2019 Ice shelves regulate the rate of ice-sheet discharge along much of the Antarctic coastline. Pinning points, sites of localised grounding within floating ice, can in turn, regulate the flow and thickness of an ice shelf.
Holly Still +2 more
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Deformation of Floating Ice Shelves [PDF]
Journal of Glaciology, 1957 AbstractThe problem of the creep deformation of floating ice shelves is considered. The problem is solved using Glen’s creep law for ice and Nye’s relation of steady-state creep (the analogue of the Lévy-Miles relation in plasticity theory). Good agreement is obtained between an observed creep rate at Maudheim in the Antarctic and that predicted from ...
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