Results 31 to 40 of about 630,227 (329)

Widespread slowdown in thinning rates of West Antarctic ice shelves

open access: yesThe Cryosphere, 2023
. Antarctica's floating ice shelves modulate discharge of grounded ice into the ocean by providing a backstress. Ice shelf thinning and grounding line retreat have reduced this backstress, driving rapid drawdown of key unstable areas of the Antarctic Ice
F. Paolo   +6 more
semanticscholar   +1 more source

Variable temperature thresholds of melt pond formation on Antarctic ice shelves

open access: yesNature Climate Change, 2023
Melt ponding is an important process for the stability of ice shelves. Here the authors estimate the temperature thresholds at which melt ponding emerges over Antarctic ice shelves and find that cold and dry ice shelves are more vulnerable to melt ...
J. M. van Wessem   +3 more
semanticscholar   +1 more source

High-resolution spatio-temporal analysis of snowmelt over Antarctic Peninsula ice shelves from 2015 to 2021 using SAR images

open access: yesInternational Journal of Digital Earth, 2023
Ice shelves play an essential role in the dynamics of the Antarctic ice sheet. The surface meltwater is important, as it can irreversibly weaken ice shelves by exerting additional hydrostatic pressure.
Qi Zhu   +6 more
doaj   +1 more source

Creep deformation and buttressing capacity of damaged ice shelves: theory and application to Larsen C ice shelf [PDF]

open access: yesThe Cryosphere, 2013
Around the perimeter of Antarctica, much of the ice sheet discharges to the ocean through floating ice shelves. The buttressing provided by ice shelves is critical for modulating the flux of ice into the ocean, and the presently observed thinning of
C. P. Borstad   +3 more
doaj   +1 more source

A comparison of contemporaneous airborne altimetry and ice-thickness measurements of Antarctic ice shelves

open access: yesJournal of Glaciology, 2023
Estimates of ice shelf mass loss are typically based on surface height measurements, assuming hydrostatic equilibrium and estimated firn thickness.
Allison M. Chartrand, I. Howat
semanticscholar   +1 more source

Eddy and tidal driven basal melting of the Totten and Moscow University ice shelves

open access: yesFrontiers in Marine Science, 2023
The mass loss from the neighboring Totten and Moscow University ice shelves is accelerating and may raise global sea levels in coming centuries. Totten Glacier is mostly based on bedrock below sea level, and so is vulnerable to warm water intrusion ...
Yuwei Xia   +8 more
doaj   +1 more source

On the Multiscale Oceanic Heat Transports Toward the Bases of the Antarctic Ice Shelves

open access: yesOcean-Land-Atmosphere Research, 2023
The mass balance of the Antarctic Ice Sheet (AIS) is important to global sea-level change. The AIS loses mass mainly through basal melting and subsequent calving of the Antarctic ice shelves.
Zhaomin Wang   +7 more
doaj   +1 more source

Brief communication: widespread potential for seawater infiltration on Antarctic ice shelves [PDF]

open access: yesThe Cryosphere, 2018
Antarctica's future contribution to sea level change depends on the fate of its fringing ice shelves. One factor which may affect the rate of iceberg calving from ice shelves is the presence of liquid water, including the percolation of seawater into ...
S. Cook   +5 more
doaj   +1 more source

Detection of Surface Crevasses over Antarctic Ice Shelves Using SAR Imagery and Deep Learning Method

open access: yesRemote Sensing, 2022
Crevasses are formed by glacier movement and the stresses within glacier ice. Knowledge of the crevasses’ distribution is critical for understanding the glacier and ice shelf stability. In this study, we propose an automated crevasse extraction framework
Jingjing Zhao   +4 more
semanticscholar   +1 more source

Brief communication: A submarine wall protecting the Amundsen Sea intensifies melting of neighboring ice shelves [PDF]

open access: yesThe Cryosphere, 2019
Disintegration of ice shelves in the Amundsen Sea, in front of the West Antarctic Ice Sheet, has the potential to cause sea level rise by inducing an acceleration of ice discharge from upstream grounded ice. Moore et al.
Ö. Gürses   +4 more
doaj   +1 more source

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