Millennial-scale variability in Antarctic ice-sheet discharge during the last deglaciation

@article{Weber2014MillennialscaleVI,
  title={Millennial-scale variability in Antarctic ice-sheet discharge during the last deglaciation},
  author={Michael Weber and Peter U. Clark and Gerhard Kuhn and Axel Timmermann and Daniela Sprenk and Rupert M. Gladstone and Xu Zhang and Gerrit Lohmann and Laurie C. Menviel and Megumi O. Chikamoto and T. Friedrich and Christian Ohlwein},
  journal={Nature},
  year={2014},
  volume={510},
  pages={134-138}
}
Our understanding of the deglacial evolution of the Antarctic Ice Sheet (AIS) following the Last Glacial Maximum (26,000–19,000 years ago) is based largely on a few well-dated but temporally and geographically restricted terrestrial and shallow-marine sequences. This sparseness limits our understanding of the dominant feedbacks between the AIS, Southern Hemisphere climate and global sea level. Marine records of iceberg-rafted debris (IBRD) provide a nearly continuous signal of ice-sheet… 

Figures from this paper

Antarctic ice sheet discharge driven by atmosphere-ocean feedbacks at the Last Glacial Termination
TLDR
Results from a highly-resolved ‘horizontal ice core’ from the Weddell Sea Embayment demonstrate that Southern Ocean-AIS feedbacks were controlled by global atmospheric teleconnections, which could amplify AIS mass loss and accelerate global sea-level rise.
The Antarctic Ice Sheet response to glacial millennial-scale variability
Abstract. The Antarctic Ice Sheet (AIS) is the largest ice sheet on Earth and hence a major potential contributor to future global sea-level rise. A wealth of studies suggest that increasing oceanic
Decadal-scale onset and termination of Antarctic ice-mass loss during the last deglaciation
TLDR
These findings are consistent with a growing body of evidence suggesting the recent acceleration of AIS mass loss may mark the beginning of a prolonged period of ice sheet retreat and substantial global sea level rise.
Orbital forcing of the East Antarctic ice sheet during the Pliocene and Early Pleistocene
The Pliocene and Early Pleistocene, between 5.3 and 0.8 million years ago, span a transition from a global climate state that was 2‐3 C warmer than present with limited ice sheets in the Northern
Quaternary Antarctic Ice Sheet Dynamics
  • J. Sutter
  • Environmental Science, Geography
  • 2016
The Antarctic Ice Sheet (AIS) plays a major role in the evolution of Quaternary glacial-interglacial cycles and in the global climate system in general. By a variety of ice-ocean and ice-atmosphere
Ice loss from the East Antarctic Ice Sheet during late Pleistocene interglacials
TLDR
This study indicates a close link between extended Antarctic warmth and ice loss from the Wilkes Subglacial Basin, providing ice-proximal data to support a contribution to sea level from a reduced East Antarctic Ice Sheet during warm interglacial intervals.
Nonlinear response of the Antarctic Ice Sheet to late Quaternary sea level and climate forcing
Abstract. Antarctic ice volume has varied substantially during the late Quaternary, with reconstructions suggesting a glacial ice sheet extending to the continental shelf break and interglacial sea
Climate science: How Antarctic ice retreats
TLDR
A record of iceberg rafted debris from the Scotia Sea is presented and clear signals of pulsed iceberg release from Antarctica as early as 19,000 years ago are shown, providing the long-sought confirmation of Antarctic contributions to this major jump in sea-level rise.
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 84 REFERENCES
Dynamics of the last glacial maximum Antarctic ice-sheet and its response to ocean forcing
TLDR
Although ocean warming and sea-level rise bring about mainly localized glacier acceleration, concomitant drawdown of ice from neighboring areas leads to widespread thinning of entire glacier catchments—a discovery that has important ramifications for the dynamic changes presently being observed in modern ice sheets.
Deglacial history of the West Antarctic Ice Sheet in the Weddell Sea embayment: Constraints on past ice volume change
The retreat history of the West Antarctic Ice Sheet (WAIS) since the Last Glacial Maximum is important for understanding the process of rapid deglaciation, constraining models that seek to predict
Millennial-scale instability of the antarctic ice sheet during the last glaciation
TLDR
Carbon isotopes of benthic foraminifers reveal that South Atlantic IRD events coincided with strong increases in North Atlantic Deep Water production and inferred warming (interstadials) in the high-latitude North Atlantic.
Marine sediment record from the East Antarctic margin reveals dynamics of ice sheet recession
The Antarctic shelf is traversed by large-scale troughs developed by glacial erosion. Swath bathymetric, lithologic, and chronologic data from jumbo piston cores from four sites along the East
Cosmogenic nuclide evidence for enhanced sensitivity of an East Antarctic ice stream to change during the last deglaciation
Glacial sediments from the Prince Charles Mountains, East Antarctica, record late Pleistocene ice thickness variability in the Lambert Glacier–Amery Ice Shelf system, one of the world9s largest ice
The Last Glacial Maximum
TLDR
The responses of the Northern and Southern Hemispheres differed significantly, which reveals how the evolution of specific ice sheets affected sea level and provides insight into how insolation controlled the deglaciation.
Evidence for late Pleistocene thinning of Siple Dome, West Antarctica
[1] We use a two-dimensional, full-stress, thermomechanical flow band model to investigate late Pleistocene and Holocene histories of ice thickness and ice flow at Siple Dome in West Antarctica.
...
1
2
3
4
5
...