Results 11 to 20 of about 522,209 (193)
The marine geological imprint of Antarctic ice shelves [PDF]
Nature Communications, 2019 The recent collapses of ice shelves in Antarctica due to warming make it essential to understand past ice shelf conditions and mechanisms. Here Smith and colleagues review the latest progress in deciphering the geological imprint of Antarctic ice shelves
James A. Smith +5 more
doaj +7 more sources
Sea ice-free corridors for large swell to reach Antarctic ice shelves [PDF]
Environmental Research Letters, 2022 Sea ice can attenuate Southern Ocean swell before it reaches Antarctic ice shelves and imposes flexural stresses, which promote calving of outer ice-shelf margins and influence ice shelf stability.
N J Teder +3 more
doaj +3 more sources
Journal of Glaciology, 1979 AbstractIce shelves form where ice flows off the Antarctic ice sheet onto the sea to produce rather flat slabs of floating ice which, for the theoretician, are the simplest of all large ice masses. Boundary conditions are well defined, conditions change very slowly over distances that are large compared with ice thickness, and horizontal velocities are
Robert H. Thomas
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Rapid disintegration and weakening of ice shelves in North Greenland [PDF]
Nature Communications, 2023 The glaciers of North Greenland are hosting enough ice to raise sea level by 2.1 m, and have long considered to be stable. This part of Greenland is buttressed by the last remaining ice shelves of the ice sheet. Here, we show that since 1978, ice shelves
R. Millan +7 more
doaj +2 more sources
Can rifts alter ocean dynamics beneath ice shelves? [PDF]
The Cryosphere, 2023 Land ice discharge from the Antarctic continent into the ocean is restrained by ice shelves, floating extensions of grounded ice that buttress the glacier outflow.
M. Poinelli +6 more
doaj +2 more sources
Supervised classification of slush and ponded water on Antarctic ice shelves using Landsat 8 imagery [PDF]
Journal of Glaciology, 2022 Surface meltwater is becoming increasingly widespread on Antarctic ice shelves. It is stored within surface ponds and streams, or within firn pore spaces, which may saturate to form slush.
Rebecca L. Dell +6 more
doaj +3 more sources
Channelized topography amplifies melt-sensitivity of cold Antarctic ice shelves [PDF]
Nature CommunicationsThe stability of Antarctic ice shelves, which regulate the flow of grounded ice into the ocean, depends critically on ocean-driven basal melting. Basal channels, widespread features beneath many ice shelves, modulate ice-shelf basal melt rates and ...
Qin Zhou +6 more
doaj +2 more sources
Vulnerable Antarctic ice shelves [PDF]
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.
Siegert, MJ, Martin Siegert
openaire +4 more sources
Equilibrium Profile of Ice Shelves
Journal of Glaciology, 1979 AbstractUsing expressions for ice-shelf creep derived by Weertman (1957) and Thomas (1973[b]) a general method is developed for calculating equilibrium thickness profiles, velocities, and strain-rates for any ice shelf. This is done first for an unconfined glacier tongue and the result agrees well with data for Erebus Glacier tongue (Holdsworth, 1974).
Sanderson, T.J.O., T. J. O. Sanderson
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Mathematical Models of Ice Shelves [PDF]
Journal of Glaciology, 1976 For flat external ice shelves, expanding freely in all directions, the problem of thermodynamics is one-dimensional. In the affine dimensionless system of coordinates, equations of the dynamics together with the rheological equation lead to the non-linear integro-differential equation involving the reduced temperature.
P. A. Shumskiy, M. S. Krass
core +3 more sources