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...
Published in: | Journal of Glaciology |
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Cambridge University Press
2020
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Online Access: | https://doi.org/10.1017/jog.2020.67 https://doaj.org/article/ad51d11ae245444fa3b79e2131f3678a |
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ftdoajarticles:oai:doaj.org/article:ad51d11ae245444fa3b79e2131f3678a 2023-05-15T14:13:29+02:00 Antarctic ice sheet response to sudden and sustained ice-shelf collapse (ABUMIP) Sainan Sun Frank Pattyn Erika G. Simon Torsten Albrecht Stephen Cornford Reinhard Calov Christophe Dumas Fabien Gillet-Chaulet Heiko Goelzer Nicholas R. Golledge Ralf Greve Matthew J. Hoffman Angelika Humbert Elise Kazmierczak Thomas Kleiner Gunter R. Leguy William H. Lipscomb Daniel Martin Mathieu Morlighem Sophie Nowicki David Pollard Stephen Price Aurélien Quiquet Hélène Seroussi Tanja Schlemm Johannes Sutter Roderik S. W. van de Wal Ricarda Winkelmann Tong Zhang 2020-12-01T00:00:00Z https://doi.org/10.1017/jog.2020.67 https://doaj.org/article/ad51d11ae245444fa3b79e2131f3678a EN eng Cambridge University Press https://www.cambridge.org/core/product/identifier/S0022143020000672/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2020.67 0022-1430 1727-5652 https://doaj.org/article/ad51d11ae245444fa3b79e2131f3678a Journal of Glaciology, Vol 66, Pp 891-904 (2020) Antarctic glaciology ice-sheet modelling ice shelves Environmental sciences GE1-350 Meteorology. Climatology QC851-999 article 2020 ftdoajarticles https://doi.org/10.1017/jog.2020.67 2023-03-12T01:30:57Z 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 Journal of Glaciology Directory of Open Access Journals: DOAJ Articles Antarctic East Antarctica The Antarctic West Antarctic Ice Sheet Journal of Glaciology 66 260 891 904 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Antarctic glaciology ice-sheet modelling ice shelves Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
spellingShingle |
Antarctic glaciology ice-sheet modelling ice shelves Environmental sciences GE1-350 Meteorology. Climatology QC851-999 Sainan Sun Frank Pattyn Erika G. Simon Torsten Albrecht Stephen Cornford Reinhard Calov Christophe Dumas Fabien Gillet-Chaulet Heiko Goelzer Nicholas R. Golledge Ralf Greve Matthew J. Hoffman Angelika Humbert Elise Kazmierczak Thomas Kleiner Gunter R. Leguy William H. Lipscomb Daniel Martin Mathieu Morlighem Sophie Nowicki David Pollard Stephen Price Aurélien Quiquet Hélène Seroussi Tanja Schlemm Johannes Sutter Roderik S. W. van de Wal Ricarda Winkelmann Tong Zhang Antarctic ice sheet response to sudden and sustained ice-shelf collapse (ABUMIP) |
topic_facet |
Antarctic glaciology ice-sheet modelling ice shelves Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
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 |
Sainan Sun Frank Pattyn Erika G. Simon Torsten Albrecht Stephen Cornford Reinhard Calov Christophe Dumas Fabien Gillet-Chaulet Heiko Goelzer Nicholas R. Golledge Ralf Greve Matthew J. Hoffman Angelika Humbert Elise Kazmierczak Thomas Kleiner Gunter R. Leguy William H. Lipscomb Daniel Martin Mathieu Morlighem Sophie Nowicki David Pollard Stephen Price Aurélien Quiquet Hélène Seroussi Tanja Schlemm Johannes Sutter Roderik S. W. van de Wal Ricarda Winkelmann Tong Zhang |
author_facet |
Sainan Sun Frank Pattyn Erika G. Simon Torsten Albrecht Stephen Cornford Reinhard Calov Christophe Dumas Fabien Gillet-Chaulet Heiko Goelzer Nicholas R. Golledge Ralf Greve Matthew J. Hoffman Angelika Humbert Elise Kazmierczak Thomas Kleiner Gunter R. Leguy William H. Lipscomb Daniel Martin Mathieu Morlighem Sophie Nowicki David Pollard Stephen Price Aurélien Quiquet Hélène Seroussi Tanja Schlemm Johannes Sutter Roderik S. W. van de Wal Ricarda Winkelmann Tong Zhang |
author_sort |
Sainan Sun |
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) |
publisher |
Cambridge University Press |
publishDate |
2020 |
url |
https://doi.org/10.1017/jog.2020.67 https://doaj.org/article/ad51d11ae245444fa3b79e2131f3678a |
geographic |
Antarctic East Antarctica The Antarctic West Antarctic Ice Sheet |
geographic_facet |
Antarctic East Antarctica The Antarctic West Antarctic Ice Sheet |
genre |
Antarc* Antarctic Antarctica East Antarctica Ice Sheet Ice Shelf Ice Shelves Journal of Glaciology |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Ice Sheet Ice Shelf Ice Shelves Journal of Glaciology |
op_source |
Journal of Glaciology, Vol 66, Pp 891-904 (2020) |
op_relation |
https://www.cambridge.org/core/product/identifier/S0022143020000672/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2020.67 0022-1430 1727-5652 https://doaj.org/article/ad51d11ae245444fa3b79e2131f3678a |
op_doi |
https://doi.org/10.1017/jog.2020.67 |
container_title |
Journal of Glaciology |
container_volume |
66 |
container_issue |
260 |
container_start_page |
891 |
op_container_end_page |
904 |
_version_ |
1766285958874923008 |