Deep glacial troughs and stabilizing ridges unveiled beneath the margins of the Antarctic ice sheet
@article{Morlighem2019DeepGT, title={Deep glacial troughs and stabilizing ridges unveiled beneath the margins of the Antarctic ice sheet}, author={M. Morlighem and E. Rignot and T. Binder and D. Blankenship and R. Drews and G. Eagles and O. Eisen and F. Ferraccioli and R. Forsberg and P. Fretwell and V. Goel and J. Greenbaum and H. Gudmundsson and J. Guo and V. Helm and C. Hofstede and I. Howat and A. Humbert and W. Jokat and N. B. Karlsson and W. Lee and Kenichi Matsuoka and R. Millan and J. Mouginot and J. Paden and F. Pattyn and J. Roberts and S. Rosier and A. Ruppel and H. Seroussi and Emma C. Smith and D. Steinhage and B. Sun and M. V. D. Broeke and T. D. V. Ommen and M. V. Wessem and D. Young}, journal={Nature Geoscience}, year={2019}, volume={13}, pages={132-137} }
The Antarctic ice sheet has been losing mass over past decades through the accelerated flow of its glaciers, conditioned by ocean temperature and bed topography. Glaciers retreating along retrograde slopes (that is, the bed elevation drops in the inland direction) are potentially unstable, while subglacial ridges slow down the glacial retreat. Despite major advances in the mapping of subglacial bed topography, significant sectors of Antarctica remain poorly resolved and critical spatial details… CONTINUE READING
Paper Mentions
News Article
72 Citations
Subglacial topography and ice flux along the English Coast of Palmer Land, Antarctic Peninsula
- Geology
- 2020
- PDF
Distribution and seasonal evolution of supraglacial lakes on Shackleton Ice Shelf, East Antarctica
- Geology
- 2020
- PDF
Subglacial lakes and hydrology across the Ellsworth Subglacial Highlands, West Antarctica
- Geology
- 2020
- PDF
References
SHOWING 1-10 OF 37 REFERENCES
Diverse landscapes beneath Pine Island Glacier influence ice flow
- Geology, Medicine
- Nature Communications
- 2017
- 36
- PDF
Continued retreat of Thwaites Glacier, West Antarctica, controlled by bed topography and ocean circulation
- Geology
- 2017
- 85
- PDF
Marine Ice Sheet Collapse Potentially Under Way for the Thwaites Glacier Basin, West Antarctica
- Geology, Medicine
- Science
- 2014
- 573
Bathymetry of the Amundsen Sea Embayment sector of West Antarctica from Operation IceBridge gravity and other data
- Geology
- 2017
- 58
- PDF
Erosion at extended continental margins: Insights from new aerogeophysical data in eastern Dronning Maud Land
- Geology
- 2018
- 4
- PDF
Ross Ice Shelf response to climate driven by the tectonic imprint on seafloor bathymetry
- Geology
- Nature Geoscience
- 2019
- 29