Troughs developed in ice-stream shear margins precondition ice shelves for ocean-driven breakup. [PDF]
Sci Adv, 2019 Fast-flowing ice shelves may form channels under their margins that promote calving and retreat under warming ocean conditions. Floating ice shelves of fast-flowing ice streams are prone to rift initiation and calving originating along zones of rapid ...
Alley KE +3 more
europepmc +2 more sources
Freshening by glacial meltwater enhances melting of ice shelves and reduces formation of Antarctic Bottom Water. [PDF]
Sci Adv, 2018 Glacial meltwater stops bottom-water formation, allowing warm ocean waters to reach Antarctic ice shelves and drive rapid melting. Strong heat loss and brine release during sea ice formation in coastal polynyas act to cool and salinify waters on the ...
Silvano A +7 more
europepmc +2 more sources
Detection of Surface Crevasses over Antarctic Ice Shelves Using SAR Imagery and Deep Learning Method
Remote 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
doaj +2 more sources
Rapid submarine ice melting in the grounding zones of ice shelves in West Antarctica. [PDF]
Nat Commun, 2016 Enhanced submarine ice-shelf melting strongly controls ice loss in the Amundsen Sea embayment (ASE) of West Antarctica, but its magnitude is not well known in the critical grounding zones of the ASE's major glaciers.
Khazendar A +8 more
europepmc +3 more sources
Basal crevasses in Larsen C Ice Shelf and implications for their global abundance [PDF]
The Cryosphere, 2012 Basal crevasses extend upwards from the base of ice bodies and can penetrate more than halfway through the ice column under conditions found commonly on ice shelves.
A. Luckman +5 more
doaj +4 more sources
Basal terraces on melting ice shelves [PDF]
Geophysical Research Letters, 2014 Ocean waters melt the margins of Antarctic and Greenland glaciers, and individual glaciers' responses and the integrity of their ice shelves are expected to depend on the spatial distribution of melt.
Corr, Hugh F J. +6 more
core +8 more sources
Calving glaciers and ice shelves [PDF]
Advances in Physics: X, 2018 Calving, or the release of icebergs from glaciers and floating ice shelves, is an important process transferring mass into the world’s oceans. Calving glaciers and ice sheets make a large contribution to sea-level rise, but large uncertainty remains about future ice sheet response to alternative carbon scenarios.
Douglas I. Benn, Jan A. Åström
openaire +5 more sources
The suppression of Antarctic bottom water formation by melting ice shelves in Prydz Bay. [PDF]
Nat Commun, 2016 A fourth production region for the globally important Antarctic bottom water has been attributed to dense shelf water formation in the Cape Darnley Polynya, adjoining Prydz Bay in East Antarctica.
Williams GD +11 more
europepmc +2 more sources
Ocean-driven thinning enhances iceberg calving and retreat of Antarctic ice shelves. [PDF]
Proc Natl Acad Sci U S A, 2015 Iceberg calving from all Antarctic ice shelves has never been directly measured, despite playing a crucial role in ice sheet mass balance. Rapid changes to iceberg calving naturally arise from the sporadic detachment of large tabular bergs but can also ...
Liu Y +7 more
europepmc +3 more sources
Widespread movement of meltwater onto and across Antarctic ice shelves [PDF]
Nature, 2017 Surface meltwater drains across ice sheets, forming melt ponds that can trigger ice-shelf collapse acceleration of grounded ice flow and increased sea-level rise.
Bell, R.E. +3 more
core +2 more sources