Simultaneous disintegration of outlet glaciers in Porpoise Bay (Wilkes Land), East Antarctica, driven by sea ice break-up [PDF]
The floating ice shelves and glacier tongues which fringe the Antarctic continent are important because they help buttress ice flow from the ice sheet interior.
B. W. J. Miles+2 more
doaj +8 more sources
Change in iceberg calving behavior preceded North Sea ice shelf disintegration during the last deglaciation. [PDF]
Kirkham JD+15 more
europepmc +2 more sources
A 15-year circum-Antarctic iceberg calving dataset derived from continuous satellite observations [PDF]
Iceberg calving is the main process that facilitates the dynamic mass loss of ice sheets into the ocean, which accounts for approximately half of the mass loss of the Antarctic ice sheet.
M. Qi+14 more
doaj +1 more source
Precursor of disintegration of Greenland's largest floating ice tongue [PDF]
The largest floating tongue of Greenland’s ice sheet, Nioghalvfjerdsbræ, has been relatively stable with respect to areal retreat until 2022. Draining more than 6 % of the ice sheet, a disintegration of Nioghalvfjerdsbræ's floating tongue and subsequent ...
A. Humbert+13 more
doaj +1 more source
The speedup of Pine Island Ice Shelf between 2017 and 2020: revaluating the importance of ice damage
From 2017 to 2020, three significant calving events took place on Pine Island Glacier, West Antarctica. Ice-shelf velocities changed over this period and the calving events have been suggested as possible drivers.
Sainan Sun, G. Hilmar Gudmundsson
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Buoyant forces promote tidewater glacier iceberg calving through large basal stress concentrations [PDF]
Iceberg calving parameterisations currently implemented in ice sheet models do not reproduce the full observed range of calving behaviours. For example, though buoyant forces at the ice front are known to trigger full-depth calving events on major ...
M. Trevers+4 more
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We investigate the physical basis of the crevasse-depth (CD) calving law by analysing relationships between glaciological stresses and calving behaviour at Sermeq Kujalleq (Store Glacier), Greenland.
Douglas I. Benn+8 more
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Comparison of four calving laws to model Greenland outlet glaciers [PDF]
Calving is an important mechanism that controls the dynamics of marine terminating glaciers of Greenland. Iceberg calving at the terminus affects the entire stress regime of outlet glaciers, which may lead to further retreat and ice flow acceleration. It
Y. Choi+3 more
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Development of ice-shelf estuaries promotes fractures and calving
As the global climate warms, increased surface meltwater production on ice shelves may trigger ice-shelf collapse and enhance global sea-level rise. The formation of surface rivers could help prevent ice-shelf collapse if they can efficiently evacuate meltwater. Here, we present observations of the evolution of a surface river into an ice-shelf estuary
Alexandra L. Boghosian+6 more
openaire +2 more sources
Distinguishing subaerial and submarine calving with underwater noise
Iceberg calving is one of the major mechanisms of ice loss from tidewater glaciers and ice sheets, but obtaining accurate estimates of ice discharge that are both continuous and accurate is a challenging task.
Oskar Glowacki
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