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  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): Antarctic ice sheet response to sudden and sustained ice-shelf collapse (ABUMIP). - Journal of Glaciology, 66, 260, 891-904.
https://doi.org/10.1017/jog.2020.67

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 Urheber:
Sun, Sainan1, Autor
Pattyn, Frank1, Autor
Simon, Erika G.1, Autor
Albrecht, Torsten2, Autor              
Cornford, Stephen1, Autor
Calov, Reinhard2, Autor              
Dumas, Christophe1, Autor
Gillet-Chaulet, Fabien1, Autor
Goelzer, Heiko1, Autor
Golledge, Nicholas R.1, Autor
Greve, Ralf1, Autor
Hoffman, Matthew J.1, Autor
Humbert, Angelika1, Autor
Kazmierczak, Elise1, Autor
Kleiner, Thomas1, Autor
Leguy, Gunter R.1, Autor
Lipscomb, William H.1, Autor
Martin, Daniel1, Autor
Morlighem, Mathieu1, Autor
Nowicki, Sophie1, Autor
Pollard, David1, AutorPrice, Stephen1, AutorQuiquet, Aurélien1, AutorSeroussi, Hélène1, AutorSchlemm, Tanja2, Autor              Sutter, Johannes1, Autorvan de Wal, Roderik S. W.1, AutorWinkelmann, Ricarda2, Autor              Zhang, Tong1, Autor mehr..
Affiliations:
1External Organizations, ou_persistent22              
2Potsdam Institute for Climate Impact Research, Potsdam, ou_persistent13              

Inhalt

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Schlagwörter: Antarctic glaciology; ice-sheet modelling; ice shelves; SPP 1158
 Zusammenfassung: 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.

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Sprache(n): eng - Englisch
 Datum: 2020-07-172019-12-312020-07-202020-09-142020-09-14
 Publikationsstatus: Final veröffentlicht
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1017/jog.2020.67
MDB-ID: yes - 3075
PIKDOMAIN: RD1 - Earth System Analysis
Organisational keyword: RD1 - Earth System Analysis
Research topic keyword: Ice
Research topic keyword: Sea-level Rise
Research topic keyword: Tipping Elements
Model / method: PISM-PIK
Organisational keyword: RD4 - Complexity Science
Working Group: Ice Dynamics
Working Group: Ice Dynamics
 Art des Abschluß: -

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Titel: Journal of Glaciology
Genre der Quelle: Zeitschrift, SCI, Scopus, p3, oa
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 66 (260) Artikelnummer: - Start- / Endseite: 891 - 904 Identifikator: CoNE: https://publications.pik-potsdam.de/cone/journals/resource/journals271
Publisher: Cambridge University Press