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Sun, S. [Author]; Pattyn, F. [Author]; Simon, E. [Author]; Albrecht, T. [Author]; Cornford, S. [Author]; Calov, R. [Author]; Dumas, C. [Author]; Gillet-Chaulet, F. [Author]; Goelzer, H. [Author]; Golledge, N. [Author]; Greve, R. [Author]; Hoffman, M. [Author]; Humbert, A. [Author]; Kazmierczak, E. [Author]; Kleiner, T. [Author]; Leguy, G. [Author]; Lipscomb, W. [Author]; Martin, D. [Author]; Morlighem, M. [Author]; Nowicki, S. [Author]; Pollard, D. [Author]; Price, S. [Author]; Quiquet, A. [Author]; Seroussi, H. [Author]; [...]

Antarctic ice sheet response to sudden and sustained ice-shelf collapse (ABUMIP)

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  • Media type: E-Article
  • Title: Antarctic ice sheet response to sudden and sustained ice-shelf collapse (ABUMIP)
  • Contributor: Sun, S. [Author]; Pattyn, F. [Author]; Simon, E. [Author]; Albrecht, T. [Author]; Cornford, S. [Author]; Calov, R. [Author]; Dumas, C. [Author]; Gillet-Chaulet, F. [Author]; Goelzer, H. [Author]; Golledge, N. [Author]; Greve, R. [Author]; Hoffman, M. [Author]; Humbert, A. [Author]; Kazmierczak, E. [Author]; Kleiner, T. [Author]; Leguy, G. [Author]; Lipscomb, W. [Author]; Martin, D. [Author]; Morlighem, M. [Author]; Nowicki, S. [Author]; Pollard, D. [Author]; Price, S. [Author]; Quiquet, A. [Author]; Seroussi, H. [Author]; [...]
  • imprint: Publication Database PIK (Potsdam Institute for Climate Impact Research), 2020-09-14
  • Published in: Journal of Glaciology
  • Language: English
  • DOI: https://doi.org/10.1017/jog.2020.67
  • Origination:
  • Footnote: Diese Datenquelle enthält auch Bestandsnachweise, die nicht zu einem Volltext führen.
  • Description: Antarctica’s ice shelves modulate the grounded ice flow, and weakening of ice shelves due to climate forcing will decrease their ‘buttressing’ effect, causing a response in the grounded ice. While the processes governing ice-shelf weakening are complex, uncertainties in the response of the grounded ice sheet are also difficult to assess. The Antarctic BUttressing Model Intercomparison Project (ABUMIP) compares ice-sheet model responses to decrease in buttres-sing by investigating the ‘end-member’ scenario of total and sustained loss of ice shelves. Although unrealistic, this scenario enables gauging the sensitivity of an ensemble of 15 ice-sheet models to a total loss of buttressing, hence exhibiting the full potential of marine ice-sheet instability. All models predict that this scenario leads to multi-metre (1–12 m) sea-level rise over 500 years from present day. West Antarctic ice sheet collapse alone leads to a 1.91–5.08 m sea-level rise due to the marine ice-sheet instability. Mass loss rates are a strong func-tion of the sliding/friction law, with plastic laws cause a further destabilization of the Aurora and Wilkes Subglacial Basins, East Antarctica. Improvements to marine ice-sheet models have greatly reduced variability between modelled ice-sheet responses to extreme ice-shelf loss, e.g. compared to the SeaRISE assessments.
  • Access State: Open Access