Results 1 to 10 of about 4,993 (205)
Thinning sea ice weakens buttressing force of iceberg mélange and promotes calving [PDF]
Nature Communications, 2017 Observed sea-ice loss near ice sheets has, in many cases, been accompanied by accelerated iceberg calving. Here, using a new model, the authors show that iceberg calving from glaciers can be suppressed by a mélange of sea ice and icebergs, with an ...
Alexander A. Robel
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Rapid iceberg calving following removal of tightly packed pro-glacial mélange. [PDF]
Nat Commun, 2019 AbstractIceberg calving is a major contributor to Greenland’s ice mass loss. Pro-glacial mélange (a mixture of sea ice, icebergs, and snow) may be tightly packed in the long, narrow fjords that front many marine-terminating glaciers and can reduce calving by buttressing. However, data limitations have hampered a quantitative understanding. We develop a
Xie S +4 more
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Quantifying iceberg calving fluxes with underwater noise [PDF]
The Cryosphere, 2020 Accurate estimates of calving fluxes are essential in understanding small-scale glacier dynamics and quantifying the contribution of marine-terminating glaciers to both eustatic sea-level rise (SLR) and the freshwater budget of polar regions.
O. Glowacki, O. Glowacki, G. B. Deane
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Large-scale experiments into the tsunamigenic potential of different iceberg calving mechanisms. [PDF]
Sci Rep, 2019 AbstractMass balance analysis of ice sheets is a key component to understand the effects of global warming. A significant component of ice sheet and shelf mass balance is iceberg calving, which can generate large tsunamis endangering human beings and coastal infrastructure.
Heller V +6 more
europepmc +7 more sources
Ocean tides trigger ice shelf rift growth and calving [PDF]
Nature CommunicationsTabular iceberg calving reduces ice-shelf extent, affecting ocean circulation and ice-sheet stability. Here we present detailed observations of a rift on the Brunt Ice Shelf, East Antarctica, from 2017-2023 and its behaviour in the lead up to calving in ...
O. J. Marsh, R. J. Arthern, J. De Rydt
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Do atmospheric rivers trigger tabular iceberg calving?
Journal of GlaciologyThe processes governing iceberg calving from ice shelves remain poorly understood. Recent studies suggest that anomalous atmospheric moisture transport events – atmospheric rivers – can act as triggers for calving.
Tristan Scott Rendfrey +2 more
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Ocean-driven thinning enhances iceberg calving and retreat of Antarctic ice shelves. [PDF]
Proc Natl Acad Sci U S A, 2015 SignificanceThe floating parts of the Antarctic ice sheet (“ice shelves”) help to hold back the flow of the grounded parts, determining the contribution to global sea level rise. Using satellite images, we measured, for the first time, all icebergs larger than 1 km2calving from the entire Antarctic coastline, and the state of health of all the ice ...
Liu Y +7 more
europepmc +4 more sources
IceLines – A new data set of Antarctic ice shelf front positions [PDF]
Scientific Data, 2023 The frontal position of an ice shelf is an important parameter for ice dynamic modelling, the computation of mass fluxes, mapping glacier area change, calculating iceberg production rates and the estimation of ice discharge to the ocean.
Celia A. Baumhoer +3 more
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A 15-year circum-Antarctic iceberg calving dataset derived from continuous satellite observations [PDF]
Earth System Science Data, 2021 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
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Large-scale investigation into iceberg-tsunamis generated by various iceberg calving mechanisms [PDF]
Coastal Engineering, 2021 Abstract Mass balance analysis of ice sheets is a key component to understand the effects of global warming with iceberg calving as a significant contributor. Calving recently generated tsunamis of up to 50 m in amplitude endangering human beings and coastal infrastructure.
Heller, Valentin +4 more
openaire +2 more sources