Antarctic ice sheet response to sudden and sustained ice-shelf collapse (ABUMIP)
Abstract 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...
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ftunivbruxelles:oai:dipot.ulb.ac.be:2013/313214 2024-04-28T07:58:24+00:00 Antarctic ice sheet response to sudden and sustained ice-shelf collapse (ABUMIP) Sun, Sainan Pattyn, Frank Simon, Erika G. Albrecht, Torsten Cornford, Stephen L. Calov, Reinhard Dumas, Christophe Gillet-Chaulet, Fabien Goelzer, Heiko Golledge, Nicholas R. Greve, Ralf Hoffman, Matthew J. Humbert, Angelika Kazmierczak, Elise Kleiner, Thomas Leguy, Gunter R. Lipscomb, William H. Martin, Daniel Morlighem, Mathieu Nowicki, Sophie Pollard, David Price, Stephen Quiquet, Aurelien Seroussi, Helene Schlemm, Tanja Sutter, Johannes van de Wal, Roderik S W Winkelmann, Ricarda Zhang, Tong 2020-09-01 1 full-text file(s): application/pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/313214 https://dipot.ulb.ac.be/dspace/bitstream/2013/313214/3/abumip.pdf en eng uri/info:doi/10.1017/jog.2020.67 uri/info:pii/S0022143020000672 uri/info:scp/85091781611 https://dipot.ulb.ac.be/dspace/bitstream/2013/313214/3/abumip.pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/313214 1 full-text file(s): info:eu-repo/semantics/openAccess Journal of Glaciology Glaciologie Sciences exactes et naturelles Antarctic glaciology ice shelves ice-sheet modelling info:eu-repo/semantics/article info:ulb-repo/semantics/articlePeerReview info:ulb-repo/semantics/openurl/article 2020 ftunivbruxelles 2024-04-10T00:12:21Z Abstract 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. SCOPUS: ar.j info:eu-repo/semantics/published Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Ice Sheet Ice Shelf Ice Shelves Journal of Glaciology DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) |
institution |
Open Polar |
collection |
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) |
op_collection_id |
ftunivbruxelles |
language |
English |
topic |
Glaciologie Sciences exactes et naturelles Antarctic glaciology ice shelves ice-sheet modelling |
spellingShingle |
Glaciologie Sciences exactes et naturelles Antarctic glaciology ice shelves ice-sheet modelling Sun, Sainan Pattyn, Frank Simon, Erika G. Albrecht, Torsten Cornford, Stephen L. Calov, Reinhard Dumas, Christophe Gillet-Chaulet, Fabien Goelzer, Heiko Golledge, Nicholas R. Greve, Ralf Hoffman, Matthew J. Humbert, Angelika Kazmierczak, Elise Kleiner, Thomas Leguy, Gunter R. Lipscomb, William H. Martin, Daniel Morlighem, Mathieu Nowicki, Sophie Pollard, David Price, Stephen Quiquet, Aurelien Seroussi, Helene Schlemm, Tanja Sutter, Johannes van de Wal, Roderik S W Winkelmann, Ricarda Zhang, Tong Antarctic ice sheet response to sudden and sustained ice-shelf collapse (ABUMIP) |
topic_facet |
Glaciologie Sciences exactes et naturelles Antarctic glaciology ice shelves ice-sheet modelling |
description |
Abstract 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. SCOPUS: ar.j info:eu-repo/semantics/published |
format |
Article in Journal/Newspaper |
author |
Sun, Sainan Pattyn, Frank Simon, Erika G. Albrecht, Torsten Cornford, Stephen L. Calov, Reinhard Dumas, Christophe Gillet-Chaulet, Fabien Goelzer, Heiko Golledge, Nicholas R. Greve, Ralf Hoffman, Matthew J. Humbert, Angelika Kazmierczak, Elise Kleiner, Thomas Leguy, Gunter R. Lipscomb, William H. Martin, Daniel Morlighem, Mathieu Nowicki, Sophie Pollard, David Price, Stephen Quiquet, Aurelien Seroussi, Helene Schlemm, Tanja Sutter, Johannes van de Wal, Roderik S W Winkelmann, Ricarda Zhang, Tong |
author_facet |
Sun, Sainan Pattyn, Frank Simon, Erika G. Albrecht, Torsten Cornford, Stephen L. Calov, Reinhard Dumas, Christophe Gillet-Chaulet, Fabien Goelzer, Heiko Golledge, Nicholas R. Greve, Ralf Hoffman, Matthew J. Humbert, Angelika Kazmierczak, Elise Kleiner, Thomas Leguy, Gunter R. Lipscomb, William H. Martin, Daniel Morlighem, Mathieu Nowicki, Sophie Pollard, David Price, Stephen Quiquet, Aurelien Seroussi, Helene Schlemm, Tanja Sutter, Johannes van de Wal, Roderik S W Winkelmann, Ricarda Zhang, Tong |
author_sort |
Sun, Sainan |
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 |
http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/313214 https://dipot.ulb.ac.be/dspace/bitstream/2013/313214/3/abumip.pdf |
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 |
op_relation |
uri/info:doi/10.1017/jog.2020.67 uri/info:pii/S0022143020000672 uri/info:scp/85091781611 https://dipot.ulb.ac.be/dspace/bitstream/2013/313214/3/abumip.pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/313214 |
op_rights |
1 full-text file(s): info:eu-repo/semantics/openAccess |
_version_ |
1797569355604557824 |