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
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
doaj +3 more sources
Seawater softening of suture zones inhibits fracture propagation in Antarctic ice shelves. [PDF]
Nat Commun, 2019 Suture zones are abundant on Antarctic ice shelves and widely observed to impede fracture propagation, greatly enhancing ice-shelf stability. Using seismic and radar observations on the Larsen C Ice Shelf of the Antarctic Peninsula, we confirm that such ...
Kulessa B +10 more
europepmc +2 more sources
Change in iceberg calving behavior preceded North Sea ice shelf disintegration during the last deglaciation [PDF]
Nature CommunicationsUnderstanding how regime shifts in iceberg calving behavior affect ice shelf stability remains a challenge for numerical models. This is an important question as we consider the fate of the ice shelves that currently buttress the Antarctic Ice Sheet and ...
James D. Kirkham +15 more
doaj +2 more sources
Ocean-excited plate waves in the Ross and Pine Island Glacier ice shelves [PDF]
Journal of Glaciology, 2018 Ice shelves play an important role in buttressing land ice from reaching the sea, thus restraining the rate of grounded ice loss. Long-period gravity-wave impacts excite vibrations in ice shelves that can expand pre-existing fractures and trigger iceberg
ZHAO CHEN +6 more
doaj +4 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
Modelling present-day basal melt rates for Antarctic ice shelves using a parametrization of buoyant meltwater plumes [PDF]
, 2018 Basal melting below ice shelves is a major factor in mass loss from the Antarctic Ice Sheet, which can contribute significantly to possible future sea-level rise.
Werner Lazeroms +3 more
openalex +2 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 +4 more sources
The suppression of Antarctic bottom water formation by melting ice shelves in Prydz Bay [PDF]
Nature Communications, 2016 Laura Herraiz Borreguero +2 more
exaly +2 more sources
Change in Antarctic ice shelf area from 2009 to 2019 [PDF]
The Cryosphere, 2023 Antarctic ice shelves provide buttressing support to the ice sheet, stabilising the flow of grounded ice and its contribution to global sea levels. Over the past 50 years, satellite observations have shown ice shelves collapse, thin, and retreat; however,
J. R. Andreasen +3 more
doaj +1 more source