Results 11 to 20 of about 5,356 (213)
The ice dynamic and melting response of Pine Island Ice Shelf to calving [PDF]
Annals of Glaciology, 2022 Sea level rise contributions from Pine Island Glacier (PIG) are strongly modulated by the backstress that its floating extension – Pine Island Ice Shelf (PIIS) – exerts on the adjoining grounded ice. The front of PIIS has recently retreated significantly via calving, and satellite and theoretical analyses have suggested further retreat is inevitable ...
Bradley, Alexander T. +4 more
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Annals of Glaciology, 1989 Calving ice walls are an important ablation mechanism for deglaciation of calving bays occupied by temperate tide-water glaciers and polar marine ice sheets. Dangers inherent in calving bays have precluded detailed field studies of these calving ice walls.
T. Hughes
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Calving processes at a grounded ice cliff [PDF]
Annals of Glaciology, 1997 Repeat photographs and field survey reveal the mechanism of short-term ice-cliff evolution at Maud Glacier, a temperate lake-calving glacier in New Zealand. Calving is cyclic, each cycle involving four stages: (1) waterline melting and collapse of the roof of a sub-horizontal notch at the cliff foot; (2) calving of ice flakes from the cliff face ...
Martin P. Kirkbride, Charles R. Warren
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Calving and rifting on the McMurdo Ice Shelf, Antarctica [PDF]
Annals of Glaciology, 2017 ABSTRACTOn 2 March 2016, several small en échelon tabular icebergs calved from the seaward front of the McMurdo Ice Shelf, and a previously inactive rift widened and propagated by ~3 km, ~25% of its previous length, setting the stage for the future calving of a ~14 km2 iceberg.
Alison F. Banwell +6 more
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Ice shelf calving due to shear stresses: observing the response of Brunt Ice Shelf and Halloween Crack to iceberg calving using ICESat-2 laser altimetry, satellite imagery, and ice flow models [PDF]
The CryosphereFull-thickness ice shelf fractures, known as rifts, create tabular icebergs that can reduce ice shelf extent and thereby jeopardize overall marine ice sheet stability.
A. Morris +3 more
doaj +3 more sources
Finite Element Analysis of Calving From Ice Fronts [PDF]
Annals of Glaciology, 1982 The Antarctic ice sheet has almost no net annual ablation on its surface, so most mass losses are by iceberg calving along its perimeter, which may be either grounded in shallow water or floating in deep water. An ice cliff forms along the perimeter in both cases.
James L. Fastook, William F. Schmidt
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Modelled fracture and calving on the Totten Ice Shelf [PDF]
The Cryosphere, 2018 Abstract. The Totten Ice Shelf (IS) has a large drainage basin, much of which is grounded below sea level, leaving the glacier vulnerable to retreat through the Marine Ice Shelf Instability mechanism. The ice shelf has also been shown to be sensitive to changes in calving rate, as a very small retreat of the calving front from its current position is ...
S. Cook +7 more
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Calving dynamics at Jakobshavn Isbrae (Sermeq Kujalleq) controlled by local geometry: insights from a 3D Stokes calving model [PDF]
Journal of GlaciologyWe present the first simulations of Jakobshavn Isbrae (Sermeq Kujalleq), west Greenland, using a 3D Stokes calving model that permits unrestricted advance and retreat.
Iain Wheel +2 more
doaj +2 more sources
Wave erosion, frontal bending, and calving at Ross Ice Shelf [PDF]
The CryosphereIce shelf calving constitutes roughly half of the total mass loss from the Antarctic ice sheet. Although much attention is paid to calving of giant tabular icebergs, these events are relatively rare.
N. B. Sartore +4 more
doaj +2 more sources
Development of ice-shelf estuaries promotes fractures and calving
Nature Geoscience, 2021 As the global climate warms, increased surface meltwater production on ice shelves may trigger ice-shelf collapse and enhance global sea-level rise. The formation of surface rivers could help prevent ice-shelf collapse if they can efficiently evacuate meltwater. Here, we present observations of the evolution of a surface river into an ice-shelf estuary
Alexandra L. Boghosian +6 more
openaire +2 more sources