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The Petermann Ice Shelf Estuary and its impact on ice-shelf stability
2020<p>In a warming world, increased meltwater will form on Antarctica&#8217;s ice shelves. The fate of this meltwater will be critical to future ice-shelf and ice-sheet stability. Two main observations define the current theoretical framework for understanding the influence of surface hydrology on ice-shelf stability.
Robin E. Bell +3 more
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Variability in the Distribution of Fast Ice and the Sub‐ice Platelet Layer Near McMurdo Ice Shelf
, 2020Variability in the volume of supercooled Ice Shelf Water outflow in McMurdo Sound is reflected in the thickness and distribution of fast ice and the sub‐ice platelet layer beneath.
G. Brett +5 more
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Ross Ice Shelf temperatures support a history of ice-shelf thickening
Nature, 1979The ice sheet in West Antarctica is grounded on a sub-sea level basin in the Antarctic continental shelf. At the seaward margins, where ice thicknesses are reduced sufficiently to attain neutral bouyancy, floating ice shelves form. The two largest are the Ross and Ronne ice shelves (Fig. 1).
Douglas R. MacAyeal +2 more
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Fracture of Antarctic shelf ice
Journal of Geophysical Research: Solid Earth, 2002We have investigated the fracture of Antarctic shelf ice core using two fracture mechanics test methods: the chevron‐notched short‐rod specimen loaded in tension and the chevron‐notched round‐bar specimen loaded in three‐point bending. These tests have been used to measure the fracture initiation toughness, Kinit, at which crack growth starts, on ...
Peter Sammonds +4 more
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Geological Society of America Bulletin, 1935
INTRODUCTION Of all Antarctic glacial features, none is as characteristic or as distinctive and none has excited as much interest and as much speculation from explorers, as the areas of shelf ice which occupy protected or partly protected areas about the continent. The best known and largest of these is the Ross Shelf Ice, which extends northward from
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INTRODUCTION Of all Antarctic glacial features, none is as characteristic or as distinctive and none has excited as much interest and as much speculation from explorers, as the areas of shelf ice which occupy protected or partly protected areas about the continent. The best known and largest of these is the Ross Shelf Ice, which extends northward from
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Science, 2001
GEOLOGY Several small ice shelves around the Antarctic Peninsula retreated during the late 20th century due to regional climate warming. Did similar retreats occur through natural climate variability during the past 10,000 years. Pudsey and Evans have now addressed this question by studying the history of the Prince Gustav Channel ice shelf.
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GEOLOGY Several small ice shelves around the Antarctic Peninsula retreated during the late 20th century due to regional climate warming. Did similar retreats occur through natural climate variability during the past 10,000 years. Pudsey and Evans have now addressed this question by studying the history of the Prince Gustav Channel ice shelf.
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Antarctic calving loss rivals ice-shelf thinning
Nature, 2022C. Greene +3 more
semanticscholar +1 more source
Antarctic ice-shelf advance driven by anomalous atmospheric and sea-ice circulation
Nature Geoscience, 2022Frazer D. W. Christie +5 more
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1987
The spreading of an unconfined ice shelf in two horizontal directions involves the variation of the two horizontal velocity components and the thickness in both directions. Exploiting the slow variation of physical quantities in both horizontal directions compared to vertical variation allows simple solution of the vertical momentum balance and the ...
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The spreading of an unconfined ice shelf in two horizontal directions involves the variation of the two horizontal velocity components and the thickness in both directions. Exploiting the slow variation of physical quantities in both horizontal directions compared to vertical variation allows simple solution of the vertical momentum balance and the ...
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Modelling ice-shelf/ocean interaction
2023The effect of climate change on the mass balance of ice shelves and bottom water formation is investigated using a terrain-following three-dimensional numerical ocean model. The Regional Ocean Modeling System was modified to simulate the thermodynamic processes beneath ice shelves, including direct basal processes and frazil ice dynamics.
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