Results 11 to 20 of about 32,496 (283)
Melt-under-cutting and buoyancy-driven calving from tidewater glaciers: new insights from discrete element and continuum model simulations [PDF]
Journal of Glaciology, 2017 The simple calving laws currently used in ice-sheet models do not adequately reflect the complexity and diversity of calving processes. To be effective, calving laws must be grounded in a sound understanding of how calving actually works.
Adrian Luckman, Douglas I Benn, Joe Todd
exaly +8 more sources
Halley Research Station, Antarctica: calving risks and monitoring strategies [PDF]
Natural Hazards and Earth System Sciences, 2014 The British Antarctic Survey's Halley Research Station is located on the Brunt Ice Shelf, Antarctica, where it is potentially vulnerable to calving events.
R. Anderson +2 more
doaj +6 more sources
On The Calving of Ice From Floating Glaciers and Ice Shelves [PDF]
Journal of Glaciology, 1968 The deformation and the state of stress in the frontal part of a floating glacier is analysed by a method analogous with the beam theory, applied in engineering practice for determining stresses and deflections of a beans of an elastic material. Very rough approximations are made, the most severe being that of assuming the viscosity of the ice constant.
Niels Reeh
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Dynamic jamming of iceberg-choked fjords [PDF]
, 2014 We investigate the dynamics of ice m\'elange by analyzing rapid motion recorded by a time-lapse camera and terrestrial radar during several calving events that occurred at Jakobshavn Isbr\ae, Greenland. During calving events (1) the kinetic energy of the ice m\'elange is two orders of magnitude smaller than the total energy released during the events, (
+39 more
arxiv +5 more sources
Thinning sea ice weakens buttressing force of iceberg mélange and promotes calving [PDF]
Nature Communications, 2017 Observed sea-ice loss near ice sheets has, in many cases, been accompanied by accelerated iceberg calving. Here, using a new model, the authors show that iceberg calving from glaciers can be suppressed by a mélange of sea ice and icebergs, with an ...
Alexander A. Robel
doaj +5 more sources
Calving and rifting on the McMurdo Ice Shelf, Antarctica [PDF]
Annals of Glaciology, 2017 On 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 ~
Alison F. Banwell +6 more
doaj +3 more sources
Analysis of Calving Events in Antarctic Ice Shelves Using Configurational Forces [PDF]
PAMM, 2012 AbstractPrevious studies on the sensitivity of cracks in ice shelves with different boundary conditions, stress states and density profiles revealed the need for further analyses. As the transfer of boundary conditions from dynamic ice flow simulations to the linear elastic fracture analyses proved to be a critical point in previous studies, a new ...
Carolin Plate +3 more
openalex +4 more sources
Calving cycle of the Brunt Ice Shelf, Antarctica, driven by changes in ice-shelf geometry [PDF]
The Cryosphere, 2019 Abstract. Despite the potentially detrimental impact of large-scale calving events on the geometry and ice flow of the Antarctic Ice Sheet, little is known about the processes that drive rift formation prior to calving, or what controls the timing of these events.
Jan De Rydt +3 more
openaire +7 more sources
Atmospheric Triggers of the Brunt Ice Shelf Calving in February 2021
Journal of Geophysical Research: Atmospheres, 2022 AbstractThe calving of Antarctic ice shelves remains unpredictable to date due to a lack of understanding of the role of the different climatic components in such events. In this study, the role of atmospheric forcing in the calving of the Brunt Ice Shelf (BIS) in February 2021 is investigated using a combination of observational and reanalysis data ...
Diana Francis +5 more
openalex +7 more sources
Calving Seasonality Associated With Melt‐Undercutting and Lake Ice Cover [PDF]
Geophysical Research Letters, 2020 AbstractA detailed understanding of calving processes at the lacustrine margins of the Greenland ice sheet is necessary for accurately forecasting its dynamic response to ongoing climate change. However, existing data sets of lacustrine calving are limited to summer seasons and to alpine glaciers.
Joseph Mallalieu +2 more
exaly +5 more sources