Results 191 to 200 of about 20,609 (205)

Some Ice-Age Aspects of a Calving Ice-Sheet Model

1984
Further results and extensions of a simple northern hemispheric ice-sheet model are described for the Quaternary ice ages. The model predicts ice thickness and bedrock deformation in a north-south cross section, with a prescribed snow-budget distribution shifted vertically to represent the orbital pertur-bations.
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Calving From Ward–Hunt Ice Shelf, 1961–1962

Canadian Journal of Earth Sciences, 1971
Tide records available from Alert, N.W.T. provide a possible basis for identifying more closely the time of the massive calving of the outer part of the Ward–Hunt Ice Shelf in the winter of 1961–1962. The event was possibly a result of a combination of influences. The time interval in which this event probably occurred is given as from February 6 (± 2
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Size distributions of small ice pieces calved from icebergs

Cold Regions Science and Technology, 2000
Abstract This study was part of a larger project currently underway to develop an operational iceberg drift and deterioration model for the Canadian Ice Service (CIS), Environment Canada. This new iceberg model, as distinct from previous drift computations, will include estimates of iceberg calving and production of smaller ice pieces in the bergy ...
Savage, S. B., Crocker, G. B., Sayed, M., Carrieres, T.   +3 more
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The calving constraints on inception of Quaternary ice sheets

Quaternary International, 2002
Abstract Most numerical models that simulate the inception of Quaternary ice sheets nucleate the ice sheets in high-latitude highlands of the Northern Hemisphere. These nuclei are initially plateau or island ice caps that then expand and merge with one another to become an ice sheet. Before merger, however, these ice caps often must cross continental
James P. Kenneally, Terence J. Hughes
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Impacts of the Larsen-C Ice Shelf calving event

Nature Climate Change, 2017
A giant iceberg has calved off the Larsen-C Ice Shelf, the largest remaining ice shelf on the Antarctic Peninsula, reducing its total area by ~10%. Whilst calving events are a natural phenomenon and thus not necessarily indicative of changing environmental conditions, such events can impact ice-shelf stability.
Hogg, Anna E., Gudmundsson, G. Hilmar
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Equipping an ice-flow model with calving and ice-front migration

Global sea-level rise is significantly influenced by glacier melting and retreat palpable all around the world. Of particular interest are marine- and lake-terminating (MALT) glaciers, which, despite their small number, store a substantial portion of the global glacier ice volume. One key component of the glacier mass budget in MALT glaciers is frontal
Veena Prasad, Alexander Groos, Ilaria Tabone, Oskar Hermann, Guillaume Jouvet, James R Jordan, Johannes J Fürst   +6 more
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Strong ice-ocean interaction drives and enhances calving of Antarctic ice shelves

Since 2015, there has been a significant increase in iceberg calving rates from Antarctic ice shelves. It is crucial to comprehend the climate-related reasons for this enhanced iceberg calving to improve coupled simulations with the ice sheet and predict their future effects on sea-level rise. Based on continuous observations of iceberg ...
Yan Liu, Xiao Cheng, Jiping Liu, John Moore, Xichen Li, Sue Cook   +5 more
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The source and calving of ice island ARLIS-II

Polar Record, 1992
AbstractOn the basis of existing data on the dimensions, shape, surficial geology, and glaciological structure of ice island ARLIS-II, used in combination with aerial photographs of northernmost Ellesmere Island taken in 1950 and 1959, the source of the ice island is positively identified as the Alfred Ernest Ice Shelf. The duration of the recent drift
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Ubiquitous acceleration in Greenland Ice Sheet calving from 1985 to 2022

Nature
Nearly every glacier in Greenland has thinned or retreated over the past few decades1-4, leading to glacier acceleration, increased rates of sea-level rise and climate impacts around the globe5-9. To understand how calving-front retreat has affected the ice-mass balance of Greenland, we combine 236,328 manually derived and AI-derived observations of ...
Chad A. Greene, Alex S. Gardner, Michael Wood, Joshua K. Cuzzone   +3 more
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Ice calving, carbon dioxide and the control of ice ages

Progress in Physical Geography: Earth and Environment, 1985
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