Reassessment of the Potential Sea-Level Rise from a Collapse of the West Antarctic Ice Sheet

@article{Bamber2009ReassessmentOT,
  title={Reassessment of the Potential Sea-Level Rise from a Collapse of the West Antarctic Ice Sheet},
  author={Jonathan L. Bamber and Riccardo E. M. Riva and Bert L. A. Vermeersen and Anne LeBrocq},
  journal={Science},
  year={2009},
  volume={324},
  pages={901 - 903}
}
Collapse and Rise The West Antarctic Ice Sheet (WAIS) is thought to be inherently unstable and susceptible to rapid collapse if it reaches a certain warming threshold. Although such an event is considered unlikely, to predict the consequences of collapse it is important to know how much sea level would rise in such a case. The WAIS is thought to contain enough ice to raise sea level by 5 to 7 meters were it to collapse. Bamber et al. (p. 901, see the cover; see the Perspective by Ivins) have… Expand
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References

SHOWING 1-10 OF 26 REFERENCES
Risk Estimation of Collapse of the West Antarctic Ice Sheet
Complete collapse of the West Antarctic Ice Sheet (WAIS) would raise global sea level by around 5 m, but whether collapse is likely, or even possible, has been `glaciology's grand unsolved problem'Expand
The Sea-Level Fingerprint of West Antarctic Collapse
TLDR
It is shown, with use of a state-of-the-art theory, that the sea-level rise in excess of the eustatic value will be two to three times higher than previously predicted for U.S. coastal sites. Expand
Effect of climatic warming on the West Antarctic ice sheet
Climatic warming could cause increased melting from Antarctic ice shelves. Continued weakening of the ice shelves in this way would result in the ultimate collapse of most of the West Antarctic iceExpand
Adaptation to Five Metres of Sea Level Rise
There is an unknown but probably small probability that the West‐Antarctic Ice Sheet (WAIS) will collapse because of anthropogenic climate change. A WAIS collapse could cause a 5–6 metre global seaExpand
Future sea-level changes due to West Antarctic ice sheet fluctuations
Global sea-level changes which would result from an instantaneous uniform thinning of the possibly unstable West Antarctic ice sheet are calculated and found to be nonuniform. At locations distantExpand
New boundary conditions for the West Antarctic ice sheet: Subglacial topography beneath Pine Island Glacier
[1] Predictions about future changes in the Amundsen Sea sector of the West Antarctic ice sheet (WAIS) have been hampered by poorly known subglacial topography. Extensive airborne survey has allowedExpand
On Postglacial Sea Level
Summary An exact method is presented for calculating the changes in sea level that occur when ice and water masses are rearranged on the surface of elastic and viscoelastic non-rotating Earth models.Expand
Stability of the junction of an ice sheet and an ice shelf
An analysis is made of the steady-state size of a two-dimensional ice sheet whose base is below sea-level and which terminates in floating ice shelves. Under the assumption of perfect plasticity itExpand
Is the west Antarctic Ice Sheet disintegrating
Data pertaining to the dynamics and history of the west antarctic ice cover are reviewed and interpreted in terms of a possible inherent instability of the ice cover. A study of published dataExpand
The West Antarctic Ice Sheet: Instability, disintegration, and initiation of Ice Ages
An ice age model is proposed in which glacial-interglacial global climatic cycles are controlled by interactions between the cryosphere, hydrosphere, and atmosphere in the Atlantic environment. InExpand
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