Results 11 to 20 of about 568,996 (352)
Interannual variations in meltwater input to the Southern Ocean from Antarctic ice shelves. [PDF]
Nat Geosci, 2020 Ocean-driven basal melting of Antarctica’s floating ice shelves accounts for about half of their mass loss in steady state, where gains in ice-shelf mass are balanced by losses. Ice-shelf thickness changes driven by varying basal melt rates modulate mass
Adusumilli S +4 more
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The Creep of Ice Shelves Theory [PDF]
Journal of Glaciology, 1973 AbstractBudd’s expressions for strain-rate gradient along the centre line of a bounded ice shelf are shown to be applicable only to ice shelves with almost constant thickness and very small longitudinal strain-rates. A general expression is derived for creep in an ice shelf where the sole restriction is that of zero shear stresses in vertical planes ...
Robert Thomas
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Progressive unanchoring of Antarctic ice shelves since 1973. [PDF]
NatureMass loss of the Antarctic Ice Sheet has been driven primarily by the thinning of the floating ice shelves that fringe the ice sheet1, reducing their buttressing potential and causing land ice to accelerate into the ocean2.
Miles BWJ, Bingham RG.
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Equilibrium Profile of Ice Shelves [PDF]
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).
T. J. O. Sanderson
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Supervised classification of slush and ponded water on Antarctic ice shelves using Landsat 8 imagery
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
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Deformation of Floating Ice Shelves [PDF]
Journal of Glaciology, 1957 AbstractThe problem of the creep deformation of floating ice shelves is considered. The problem is solved using Glen’s creep law for ice and Nye’s relation of steady-state creep (the analogue of the Lévy-Miles relation in plasticity theory). Good agreement is obtained between an observed creep rate at Maudheim in the Antarctic and that predicted from ...
J. Weertman
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Explicit representation and parametrised impacts of under ice shelf seas in the z∗ coordinate ocean model NEMO 3.6 [PDF]
Geoscientific Model Development, 2017 Ice-shelf–ocean interactions are a major source of freshwater on the Antarctic continental shelf and have a strong impact on ocean properties, ocean circulation and sea ice.
P. Mathiot +4 more
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New gravity-derived bathymetry for the Thwaites, Crosson, and Dotson ice shelves revealing two ice shelf populations [PDF]
The Cryosphere, 2020 Ice shelves play a critical role in the long-term stability of ice sheets through their buttressing effect. The underlying bathymetry and cavity thickness are key inputs for modelling future ice sheet evolution.
T. A. Jordan +8 more
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Can unconfined ice shelves provide buttressing via hoop stresses?
Journal of Glaciology, 2020 The stress balance within an ice shelf is key to the resistance, or buttressing, it can provide and in part controls the rate of ice discharge from the upstream ice sheet. Unconfined ice shelves are widely assumed to provide no buttressing.
Martin G. Wearing +2 more
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Formation, Flow, and Disintegration Of Ice Shelves [PDF]
Journal of Glaciology, 1979 AbstractIce shelves may develop either by continued thickening of sea ice that is held fast to the shore, or by the seaward extension of inland ice. For both processes, as well as for an understanding of ablation and of accumulation at the bottom surface of ice shelves, we need to understand melting and freezing processes in relation to salinity ...
G. de Q. Robin
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