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
doaj +4 more sources
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 +7 more sources
Modeling the elastic transmission of tidal stresses to great distances inland in channelized ice streams [PDF]
The Cryosphere, 2014 Geodetic surveys suggest that ocean tides can modulate the motion of Antarctic ice streams, even at stations many tens of kilometers inland from the grounding line.
J. Thompson, M. Simons, V. C. Tsai
doaj +6 more sources
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
doaj +2 more sources
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
doaj +2 more sources
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
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
doaj +2 more sources
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
Temporal variations in the flow of a large Antarctic ice stream controlled by tidally induced changes in the subglacial water system [PDF]
The Cryosphere, 2015 Observations show that the flow of Rutford Ice Stream (RIS) is strongly modulated by the ocean tides, with the strongest tidal response at the 14.77-day tidal period (Msf). This is striking because this period is absent in the tidal forcing.
S. H. R. Rosier +2 more
doaj +6 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