| Title: | Antarctic ice sheet response to sudden and sustained ice-shelf collapse (ABUMIP) |
| Authors: | Sun, Sainan Browse this author |
| Pattyn, Frank Browse this author |
| Simon, Erika G Browse this author |
| Albrecht, Torsten Browse this author |
| Cornford, Stephen Browse this author |
| Calov, Reinhard Browse this author |
| Dumas, Christophe Browse this author |
| Gillet-Chaulet, Fabien Browse this author |
| Goelzer, Heiko Browse this author |
| Golledge, Nicholas R Browse this author |
| Greve, Ralf Browse this author →KAKEN DB |
| Hoffman, Matthew J Browse this author |
| Humbert, Angelika Browse this author |
| Kazmierczak, Elise Browse this author |
| Kleiner, Thomas Browse this author |
| Leguy, Gunter R Browse this author |
| Lipscomb, William H Browse this author |
| Martin, Daniel Browse this author |
| Morlighem, Mathieu Browse this author |
| Nowicki, Sophie Browse this author |
| Pollard, David Browse this author |
| Price, Stephen Browse this author |
| Quiquet, Aurélien Browse this author |
| Seroussi, Hélène Browse this author |
| Schlemm, Tanja Browse this author |
| Sutter, Johannes Browse this author |
| van de Wal, Roderik S. W Browse this author |
| Winkelmann, Ricarda Browse this author |
| Zhang, Tong Browse this author |
| Issue Date: | 14-Sep-2020 |
| Publisher: | International Glaciological Society |
| Journal Title: | Journal of Glaciology |
| Volume: | 66 |
| Issue: | 260 |
| Start Page: | 891 |
| End Page: | 904 |
| Publisher DOI: | 10.1017/jog.2020.67 |
| 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. |
| Rights: | http://creativecommons.org/licenses/by/4.0/ |
| Type: | article |
| URI: | http://hdl.handle.net/2115/79911 |
| Appears in Collections: | 低温科学研究所 (Institute of Low Temperature Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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