Crystal orientation fabric anisotropy causes directional hardening of the Northeast Greenland Ice Stream [PDF]
Nature Communications, 2023 The dynamic mass loss of ice sheets constitutes one of the biggest uncertainties in projections of ice-sheet evolution. One central, understudied aspect of ice flow is how the bulk orientation of the crystal orientation fabric translates to the ...
Tamara Annina Gerber +22 more
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Interplay of grounding-line dynamics and sub-shelf melting during retreat of the Bjørnøyrenna Ice Stream [PDF]
Scientific Reports, 2018 The Barents Sea Ice Sheet was a marine-based ice sheet, i.e., it rested on the Barents Sea floor during the Last Glacial Maximum (21 ky BP). The Bjørnøyrenna Ice Stream was the largest ice stream draining the Barents Sea Ice Sheet and is regarded as an ...
Michele Petrini +9 more
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Stochastic ice stream dynamics. [PDF]
Proc Natl Acad Sci U S A, 2016 Significance Ice streams form the backbone of the flow field of ice sheets. They are known to exhibit a complex spatiotemporal dynamics, which is largely not well understood. Understanding the controls on such dynamics is crucial to sea level change projections as well as to the interpretation of paleorecords.
Mantelli E, Bertagni MB, Ridolfi L.
europepmc +5 more sources
Holocene thinning in central Greenland controlled by the Northeast Greenland Ice Stream [PDF]
Nature CommunicationsIce-core records from the interior of the Greenland ice sheet suggest widespread thinning during the Holocene. However, the recurring underestimation of this thinning in numerical models raises concerns about both the veracity of such reconstructions and
Ilaria Tabone +3 more
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Shear margins in upper half of Northeast Greenland Ice Stream were established two millennia ago [PDF]
Nature CommunicationsOnly a few localised ice streams drain most of the ice from the Greenland Ice Sheet. Thus, understanding ice stream behaviour and its temporal variability is crucially important to predict future sea-level change.
Daniela Jansen +19 more
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Ocean driven retreat of the Northeast Greenland Ice Stream following the Last Glacial Maximum [PDF]
Nature CommunicationsThe Northeast Greenland Ice Stream (NEGIS), the largest ice stream draining the Greenland Ice Sheet (GrIS), is losing mass at an accelerating rate due to atmospheric and ocean-driven melting.
S. Louise Callard +6 more
doaj +2 more sources
Extensive inland thinning and speed-up of Northeast Greenland Ice Stream [PDF]
Nature, 2022 Shfaqat Abbas Khan +2 more
exaly +2 more sources
Sensitivity of Heinrich-type ice-sheet surge characteristics to boundary forcing perturbations [PDF]
Climate of the Past, 2023 Heinrich-type ice-sheet surges are one of the prominent signals of glacial climate variability. They are characterised as abrupt, quasi-periodic episodes of ice-sheet instabilities during which large numbers of icebergs are released from the Laurentide ...
C. Schannwell +3 more
doaj +1 more source
Shear-margin melting causes stronger transient ice discharge than ice-stream melting in idealized simulations [PDF]
The Cryosphere, 2022 Basal ice-shelf melting is the key driver of Antarctica's increasing sea-level contribution. In diminishing the buttressing force of the ice shelves that fringe the ice sheet, the melting increases the ice discharge into the ocean.
J. Feldmann +7 more
doaj +1 more source
The role of subtemperate slip in thermally driven ice stream margin migration [PDF]
The Cryosphere, 2018 The amount of ice discharged by an ice stream depends on its width, and the widths of unconfined ice streams such as the Siple Coast ice streams in West Antarctica have been observed to evolve on decadal to centennial timescales.
M. Haseloff +4 more
doaj +1 more source