Antarctic ice sheet response to sudden and sustained ice-shelf collapse (ABUMIP)
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 grou...
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ftvliz:oai:oma.vliz.be:337529 2023-05-15T13:53:33+02:00 Antarctic ice sheet response to sudden and sustained ice-shelf collapse (ABUMIP) Sun, S. Pattyn, F. Simon, E.G. Albrecht, T. Cornford, S. Calov, R. Dumas, C. Gillet-Chaulet, F. Goelzer, H. Golledge, N.R. Greve, R. Hoffman, M.J. Humbert, A. Kazmierczak, E. Kleiner, T. Leguy, G.R. Lipscomb, W.H. Martin, D. Morlighem, M. Nowicki, S. Pollard, D. Price, S. Quiquet, A. Seroussi, H. Schlemm, T. Sutter, J. van de Wal, R.S.W Winkelmann, R. Zhang, T. 2020 application/pdf https://www.vliz.be/imisdocs/publications/361469.pdf en eng info:eu-repo/semantics/altIdentifier/wos/000592212900001 https://www.vliz.be/imisdocs/publications/361469.pdf info:eu-repo/semantics/openAccess %3Ci%3EJ.+Glaciol.+66%28260%29%3C%2Fi%3E%3A+891-904.+%3Ca+href%3D%22https%3A%2F%2Fhdl.handle.net%2F10.1017%2Fjog.2020.67%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fhdl.handle.net%2F10.1017%2Fjog.2020.67%3C%2Fa%3E info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2020 ftvliz 2022-05-01T11:54:38Z 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 buttressing 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 function 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. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Ice Sheet Ice Shelf Ice Shelves Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) Antarctic The Antarctic East Antarctica West Antarctic Ice Sheet |
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Open Polar |
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Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) |
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ftvliz |
language |
English |
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 buttressing 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 function 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. |
format |
Article in Journal/Newspaper |
author |
Sun, S. Pattyn, F. Simon, E.G. Albrecht, T. Cornford, S. Calov, R. Dumas, C. Gillet-Chaulet, F. Goelzer, H. Golledge, N.R. Greve, R. Hoffman, M.J. Humbert, A. Kazmierczak, E. Kleiner, T. Leguy, G.R. Lipscomb, W.H. Martin, D. Morlighem, M. Nowicki, S. Pollard, D. Price, S. Quiquet, A. Seroussi, H. Schlemm, T. Sutter, J. van de Wal, R.S.W Winkelmann, R. Zhang, T. |
spellingShingle |
Sun, S. Pattyn, F. Simon, E.G. Albrecht, T. Cornford, S. Calov, R. Dumas, C. Gillet-Chaulet, F. Goelzer, H. Golledge, N.R. Greve, R. Hoffman, M.J. Humbert, A. Kazmierczak, E. Kleiner, T. Leguy, G.R. Lipscomb, W.H. Martin, D. Morlighem, M. Nowicki, S. Pollard, D. Price, S. Quiquet, A. Seroussi, H. Schlemm, T. Sutter, J. van de Wal, R.S.W Winkelmann, R. Zhang, T. Antarctic ice sheet response to sudden and sustained ice-shelf collapse (ABUMIP) |
author_facet |
Sun, S. Pattyn, F. Simon, E.G. Albrecht, T. Cornford, S. Calov, R. Dumas, C. Gillet-Chaulet, F. Goelzer, H. Golledge, N.R. Greve, R. Hoffman, M.J. Humbert, A. Kazmierczak, E. Kleiner, T. Leguy, G.R. Lipscomb, W.H. Martin, D. Morlighem, M. Nowicki, S. Pollard, D. Price, S. Quiquet, A. Seroussi, H. Schlemm, T. Sutter, J. van de Wal, R.S.W Winkelmann, R. Zhang, T. |
author_sort |
Sun, S. |
title |
Antarctic ice sheet response to sudden and sustained ice-shelf collapse (ABUMIP) |
title_short |
Antarctic ice sheet response to sudden and sustained ice-shelf collapse (ABUMIP) |
title_full |
Antarctic ice sheet response to sudden and sustained ice-shelf collapse (ABUMIP) |
title_fullStr |
Antarctic ice sheet response to sudden and sustained ice-shelf collapse (ABUMIP) |
title_full_unstemmed |
Antarctic ice sheet response to sudden and sustained ice-shelf collapse (ABUMIP) |
title_sort |
antarctic ice sheet response to sudden and sustained ice-shelf collapse (abumip) |
publishDate |
2020 |
url |
https://www.vliz.be/imisdocs/publications/361469.pdf |
geographic |
Antarctic The Antarctic East Antarctica West Antarctic Ice Sheet |
geographic_facet |
Antarctic The Antarctic East Antarctica West Antarctic Ice Sheet |
genre |
Antarc* Antarctic Antarctica East Antarctica Ice Sheet Ice Shelf Ice Shelves |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Ice Sheet Ice Shelf Ice Shelves |
op_source |
%3Ci%3EJ.+Glaciol.+66%28260%29%3C%2Fi%3E%3A+891-904.+%3Ca+href%3D%22https%3A%2F%2Fhdl.handle.net%2F10.1017%2Fjog.2020.67%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fhdl.handle.net%2F10.1017%2Fjog.2020.67%3C%2Fa%3E |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/000592212900001 https://www.vliz.be/imisdocs/publications/361469.pdf |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1766258747666071552 |