InitMIP-Antarctica: An ice sheet model initialization experiment of ISMIP6
Ice sheet numerical modeling is an important tool to estimate the dynamic contribution of the Antarctic ice sheet to sea level rise over the coming centuries. The influence of initial conditions on ice sheet model simulations, however, is still unclear. To better understand this influence, an initia...
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ftunivbruxelles:oai:dipot.ulb.ac.be:2013/290079 2023-05-15T13:37:30+02:00 InitMIP-Antarctica: An ice sheet model initialization experiment of ISMIP6 Seroussi, Helene Nowicki, Sophie Simon, Erika Abe-Ouchi, Ayako Albrecht, Torsten Brondex, Julien Cornford, Stephen L. Dumas, Christophe Gillet-Chaulet, F. Goelzer, Heiko Golledge, Nicholas R. Gregory, Jonathan Greve, Ralf Hoffman, Matthew M.J. Humbert, A. Huybrechts, Philippe Kleiner, Thomas Larour, Eric Leguy, Gunter Lipscomb, William Lowry, Daniel Mengel, Matthias Morlighem, M. Pattyn, Frank Payne, A.J. Pollard, David Price, Stephen S.R. Quiquet, Aurelien Reerink, Thomas T.J. Reese, Ronja Rodehacke, C. Schlegel, N. Shepherd, Andrew Sun, Sainan Sutter, Johannes Van Breedam, Jonas van de Wal, Roderik S W Winkelmann, Ricarda Zhang, Tong 2019-05 1 full-text file(s): application/pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/290079 https://dipot.ulb.ac.be/dspace/bitstream/2013/290079/1/doi_273706.pdf en eng uri/info:doi/10.5194/tc-13-1441-2019 uri/info:scp/85065988446 https://dipot.ulb.ac.be/dspace/bitstream/2013/290079/1/doi_273706.pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/290079 1 full-text file(s): info:eu-repo/semantics/openAccess The Cryosphere, 13 (5 Géologie et minéralogie Econométrie et méthodes statistiques :théorie et applications info:eu-repo/semantics/article info:ulb-repo/semantics/articlePeerReview info:ulb-repo/semantics/openurl/article 2019 ftunivbruxelles 2022-06-12T22:09:21Z Ice sheet numerical modeling is an important tool to estimate the dynamic contribution of the Antarctic ice sheet to sea level rise over the coming centuries. The influence of initial conditions on ice sheet model simulations, however, is still unclear. To better understand this influence, an initial state intercomparison exercise (initMIP) has been developed to compare, evaluate, and improve initialization procedures and estimate their impact on century-scale simulations. initMIP is the first set of experiments of the Ice Sheet Model Intercomparison Project for CMIP6 (ISMIP6), which is the primary Coupled Model Intercomparison Project Phase 6 (CMIP6) activity focusing on the Greenland and Antarctic ice sheets. Following initMIP-Greenland, initMIP-Antarctica has been designed to explore uncertainties associated with model initialization and spin-up and to evaluate the impact of changes in external forcings. Starting from the state of the Antarctic ice sheet at the end of the initialization procedure, three forward experiments are each run for 100 years: a control run, a run with a surface mass balance anomaly, and a run with a basal melting anomaly beneath floating ice. This study presents the results of initMIP-Antarctica from 25 simulations performed by 16 international modeling groups. The submitted results use different initial conditions and initialization methods, as well as ice flow model parameters and reference external forcings. We find a good agreement among model responses to the surface mass balance anomaly but large variations in responses to the basal melting anomaly. These variations can be attributed to differences in the extent of ice shelves and their upstream tributaries, the numerical treatment of grounding line, and the initial ocean conditions applied, suggesting that ongoing efforts to better represent ice shelves in continental-scale models should continue. SCOPUS: ar.j info:eu-repo/semantics/published Article in Journal/Newspaper Antarc* Antarctic Antarctica Greenland Ice Sheet Ice Shelves The Cryosphere DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) Antarctic Greenland The Antarctic |
institution |
Open Polar |
collection |
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) |
op_collection_id |
ftunivbruxelles |
language |
English |
topic |
Géologie et minéralogie Econométrie et méthodes statistiques :théorie et applications |
spellingShingle |
Géologie et minéralogie Econométrie et méthodes statistiques :théorie et applications Seroussi, Helene Nowicki, Sophie Simon, Erika Abe-Ouchi, Ayako Albrecht, Torsten Brondex, Julien Cornford, Stephen L. Dumas, Christophe Gillet-Chaulet, F. Goelzer, Heiko Golledge, Nicholas R. Gregory, Jonathan Greve, Ralf Hoffman, Matthew M.J. Humbert, A. Huybrechts, Philippe Kleiner, Thomas Larour, Eric Leguy, Gunter Lipscomb, William Lowry, Daniel Mengel, Matthias Morlighem, M. Pattyn, Frank Payne, A.J. Pollard, David Price, Stephen S.R. Quiquet, Aurelien Reerink, Thomas T.J. Reese, Ronja Rodehacke, C. Schlegel, N. Shepherd, Andrew Sun, Sainan Sutter, Johannes Van Breedam, Jonas van de Wal, Roderik S W Winkelmann, Ricarda Zhang, Tong InitMIP-Antarctica: An ice sheet model initialization experiment of ISMIP6 |
topic_facet |
Géologie et minéralogie Econométrie et méthodes statistiques :théorie et applications |
description |
Ice sheet numerical modeling is an important tool to estimate the dynamic contribution of the Antarctic ice sheet to sea level rise over the coming centuries. The influence of initial conditions on ice sheet model simulations, however, is still unclear. To better understand this influence, an initial state intercomparison exercise (initMIP) has been developed to compare, evaluate, and improve initialization procedures and estimate their impact on century-scale simulations. initMIP is the first set of experiments of the Ice Sheet Model Intercomparison Project for CMIP6 (ISMIP6), which is the primary Coupled Model Intercomparison Project Phase 6 (CMIP6) activity focusing on the Greenland and Antarctic ice sheets. Following initMIP-Greenland, initMIP-Antarctica has been designed to explore uncertainties associated with model initialization and spin-up and to evaluate the impact of changes in external forcings. Starting from the state of the Antarctic ice sheet at the end of the initialization procedure, three forward experiments are each run for 100 years: a control run, a run with a surface mass balance anomaly, and a run with a basal melting anomaly beneath floating ice. This study presents the results of initMIP-Antarctica from 25 simulations performed by 16 international modeling groups. The submitted results use different initial conditions and initialization methods, as well as ice flow model parameters and reference external forcings. We find a good agreement among model responses to the surface mass balance anomaly but large variations in responses to the basal melting anomaly. These variations can be attributed to differences in the extent of ice shelves and their upstream tributaries, the numerical treatment of grounding line, and the initial ocean conditions applied, suggesting that ongoing efforts to better represent ice shelves in continental-scale models should continue. SCOPUS: ar.j info:eu-repo/semantics/published |
format |
Article in Journal/Newspaper |
author |
Seroussi, Helene Nowicki, Sophie Simon, Erika Abe-Ouchi, Ayako Albrecht, Torsten Brondex, Julien Cornford, Stephen L. Dumas, Christophe Gillet-Chaulet, F. Goelzer, Heiko Golledge, Nicholas R. Gregory, Jonathan Greve, Ralf Hoffman, Matthew M.J. Humbert, A. Huybrechts, Philippe Kleiner, Thomas Larour, Eric Leguy, Gunter Lipscomb, William Lowry, Daniel Mengel, Matthias Morlighem, M. Pattyn, Frank Payne, A.J. Pollard, David Price, Stephen S.R. Quiquet, Aurelien Reerink, Thomas T.J. Reese, Ronja Rodehacke, C. Schlegel, N. Shepherd, Andrew Sun, Sainan Sutter, Johannes Van Breedam, Jonas van de Wal, Roderik S W Winkelmann, Ricarda Zhang, Tong |
author_facet |
Seroussi, Helene Nowicki, Sophie Simon, Erika Abe-Ouchi, Ayako Albrecht, Torsten Brondex, Julien Cornford, Stephen L. Dumas, Christophe Gillet-Chaulet, F. Goelzer, Heiko Golledge, Nicholas R. Gregory, Jonathan Greve, Ralf Hoffman, Matthew M.J. Humbert, A. Huybrechts, Philippe Kleiner, Thomas Larour, Eric Leguy, Gunter Lipscomb, William Lowry, Daniel Mengel, Matthias Morlighem, M. Pattyn, Frank Payne, A.J. Pollard, David Price, Stephen S.R. Quiquet, Aurelien Reerink, Thomas T.J. Reese, Ronja Rodehacke, C. Schlegel, N. Shepherd, Andrew Sun, Sainan Sutter, Johannes Van Breedam, Jonas van de Wal, Roderik S W Winkelmann, Ricarda Zhang, Tong |
author_sort |
Seroussi, Helene |
title |
InitMIP-Antarctica: An ice sheet model initialization experiment of ISMIP6 |
title_short |
InitMIP-Antarctica: An ice sheet model initialization experiment of ISMIP6 |
title_full |
InitMIP-Antarctica: An ice sheet model initialization experiment of ISMIP6 |
title_fullStr |
InitMIP-Antarctica: An ice sheet model initialization experiment of ISMIP6 |
title_full_unstemmed |
InitMIP-Antarctica: An ice sheet model initialization experiment of ISMIP6 |
title_sort |
initmip-antarctica: an ice sheet model initialization experiment of ismip6 |
publishDate |
2019 |
url |
http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/290079 https://dipot.ulb.ac.be/dspace/bitstream/2013/290079/1/doi_273706.pdf |
geographic |
Antarctic Greenland The Antarctic |
geographic_facet |
Antarctic Greenland The Antarctic |
genre |
Antarc* Antarctic Antarctica Greenland Ice Sheet Ice Shelves The Cryosphere |
genre_facet |
Antarc* Antarctic Antarctica Greenland Ice Sheet Ice Shelves The Cryosphere |
op_source |
The Cryosphere, 13 (5 |
op_relation |
uri/info:doi/10.5194/tc-13-1441-2019 uri/info:scp/85065988446 https://dipot.ulb.ac.be/dspace/bitstream/2013/290079/1/doi_273706.pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/290079 |
op_rights |
1 full-text file(s): info:eu-repo/semantics/openAccess |
_version_ |
1766092630669656064 |