Simulating the Antarctic ice sheet in the late-Pliocene warm period: PLISMIP-ANT, an ice-sheet model intercomparison project
In the context of future climate change, understanding the nature and behaviour of ice sheets during warm intervals in Earth history is of fundamental importance. The Late-Pliocene warm period (also known as the PRISM interval: 3.264 to 3.025 million years before present) can serve as a potential an...
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ftgfzpotsdam:oai:gfzpublic.gfz-potsdam.de:item_682919 2023-05-15T13:52:13+02:00 Simulating the Antarctic ice sheet in the late-Pliocene warm period: PLISMIP-ANT, an ice-sheet model intercomparison project de Boer, B. Dolan, A. Bernales, J. Gasson, E. Goelzer, H. Golledge, N. Sutter, J. Huybrechts, P. Lohmann, G. Rogozhina, I. Abe-Ouchi, A. Saito, F. van de Wal, R. 2015 application/pdf https://gfzpublic.gfz-potsdam.de/pubman/item/item_682919 https://gfzpublic.gfz-potsdam.de/pubman/item/item_682919_4/component/file_1053890/682919.pdf unknown info:eu-repo/semantics/altIdentifier/doi/10.5194/tcd-8-5539-2014 info:eu-repo/semantics/altIdentifier/urn/http://doi.crossref.org/servlet/query?format=unixref&pid=bib@gfz-potsdam.de&id=10.5194/tcd-8-5539-2014 https://gfzpublic.gfz-potsdam.de/pubman/item/item_682919 https://gfzpublic.gfz-potsdam.de/pubman/item/item_682919_4/component/file_1053890/682919.pdf info:eu-repo/semantics/openAccess The Cryosphere info:eu-repo/semantics/article 2015 ftgfzpotsdam https://doi.org/10.5194/tcd-8-5539-2014 2022-09-14T05:55:53Z In the context of future climate change, understanding the nature and behaviour of ice sheets during warm intervals in Earth history is of fundamental importance. The Late-Pliocene warm period (also known as the PRISM interval: 3.264 to 3.025 million years before present) can serve as a potential analogue for projected future climates. Although Pliocene ice locations and extents are still poorly constrained, a significant contribution to sea-level rise should be expected from both the Greenland ice sheet and the West and East Antarctic ice sheets based on palaeo sea-level reconstructions. Here, we present results from simulations of the Antarctic ice sheet by means of an international Pliocene Ice Sheet Modeling Intercomparison Project (PLISMIP-ANT). For the experiments, ice-sheet models including the shallow ice and shelf approximations have been used to simulate the complete Antarctic domain (including grounded and floating ice). We compare the performance of six existing numerical ice-sheet models in simulating modern control and Pliocene ice sheets by a suite of four sensitivity experiments. Ice-sheet model forcing fields are taken from the HadCM3 atmosphere–ocean climate model runs for the pre-industrial and the Pliocene. We include an overview of the different ice-sheet models used and how specific model configurations influence the resulting Pliocene Antarctic ice sheet. The six ice-sheet models simulate a comparable present-day ice sheet, although the models are setup with their own parameter settings. For the Pliocene simulations using the Bedmap1 bedrock topography, some models show a small retreat of the East Antarctic ice sheet, which is thought to have happened during the Pliocene for the Wilkes and Aurora basins. This can be ascribed to either the surface mass balance, as the HadCM3 Pliocene climate shows a significant increase over the Wilkes and Aurora basin, or the initial bedrock topography. For the latter, our simulations with the recently published Bedmap2 bedrock topography indicate a ... Article in Journal/Newspaper Antarc* Antarctic Greenland Ice Sheet The Cryosphere GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) Antarctic The Antarctic East Antarctic Ice Sheet Greenland |
institution |
Open Polar |
collection |
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) |
op_collection_id |
ftgfzpotsdam |
language |
unknown |
description |
In the context of future climate change, understanding the nature and behaviour of ice sheets during warm intervals in Earth history is of fundamental importance. The Late-Pliocene warm period (also known as the PRISM interval: 3.264 to 3.025 million years before present) can serve as a potential analogue for projected future climates. Although Pliocene ice locations and extents are still poorly constrained, a significant contribution to sea-level rise should be expected from both the Greenland ice sheet and the West and East Antarctic ice sheets based on palaeo sea-level reconstructions. Here, we present results from simulations of the Antarctic ice sheet by means of an international Pliocene Ice Sheet Modeling Intercomparison Project (PLISMIP-ANT). For the experiments, ice-sheet models including the shallow ice and shelf approximations have been used to simulate the complete Antarctic domain (including grounded and floating ice). We compare the performance of six existing numerical ice-sheet models in simulating modern control and Pliocene ice sheets by a suite of four sensitivity experiments. Ice-sheet model forcing fields are taken from the HadCM3 atmosphere–ocean climate model runs for the pre-industrial and the Pliocene. We include an overview of the different ice-sheet models used and how specific model configurations influence the resulting Pliocene Antarctic ice sheet. The six ice-sheet models simulate a comparable present-day ice sheet, although the models are setup with their own parameter settings. For the Pliocene simulations using the Bedmap1 bedrock topography, some models show a small retreat of the East Antarctic ice sheet, which is thought to have happened during the Pliocene for the Wilkes and Aurora basins. This can be ascribed to either the surface mass balance, as the HadCM3 Pliocene climate shows a significant increase over the Wilkes and Aurora basin, or the initial bedrock topography. For the latter, our simulations with the recently published Bedmap2 bedrock topography indicate a ... |
format |
Article in Journal/Newspaper |
author |
de Boer, B. Dolan, A. Bernales, J. Gasson, E. Goelzer, H. Golledge, N. Sutter, J. Huybrechts, P. Lohmann, G. Rogozhina, I. Abe-Ouchi, A. Saito, F. van de Wal, R. |
spellingShingle |
de Boer, B. Dolan, A. Bernales, J. Gasson, E. Goelzer, H. Golledge, N. Sutter, J. Huybrechts, P. Lohmann, G. Rogozhina, I. Abe-Ouchi, A. Saito, F. van de Wal, R. Simulating the Antarctic ice sheet in the late-Pliocene warm period: PLISMIP-ANT, an ice-sheet model intercomparison project |
author_facet |
de Boer, B. Dolan, A. Bernales, J. Gasson, E. Goelzer, H. Golledge, N. Sutter, J. Huybrechts, P. Lohmann, G. Rogozhina, I. Abe-Ouchi, A. Saito, F. van de Wal, R. |
author_sort |
de Boer, B. |
title |
Simulating the Antarctic ice sheet in the late-Pliocene warm period: PLISMIP-ANT, an ice-sheet model intercomparison project |
title_short |
Simulating the Antarctic ice sheet in the late-Pliocene warm period: PLISMIP-ANT, an ice-sheet model intercomparison project |
title_full |
Simulating the Antarctic ice sheet in the late-Pliocene warm period: PLISMIP-ANT, an ice-sheet model intercomparison project |
title_fullStr |
Simulating the Antarctic ice sheet in the late-Pliocene warm period: PLISMIP-ANT, an ice-sheet model intercomparison project |
title_full_unstemmed |
Simulating the Antarctic ice sheet in the late-Pliocene warm period: PLISMIP-ANT, an ice-sheet model intercomparison project |
title_sort |
simulating the antarctic ice sheet in the late-pliocene warm period: plismip-ant, an ice-sheet model intercomparison project |
publishDate |
2015 |
url |
https://gfzpublic.gfz-potsdam.de/pubman/item/item_682919 https://gfzpublic.gfz-potsdam.de/pubman/item/item_682919_4/component/file_1053890/682919.pdf |
geographic |
Antarctic The Antarctic East Antarctic Ice Sheet Greenland |
geographic_facet |
Antarctic The Antarctic East Antarctic Ice Sheet Greenland |
genre |
Antarc* Antarctic Greenland Ice Sheet The Cryosphere |
genre_facet |
Antarc* Antarctic Greenland Ice Sheet The Cryosphere |
op_source |
The Cryosphere |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/tcd-8-5539-2014 info:eu-repo/semantics/altIdentifier/urn/http://doi.crossref.org/servlet/query?format=unixref&pid=bib@gfz-potsdam.de&id=10.5194/tcd-8-5539-2014 https://gfzpublic.gfz-potsdam.de/pubman/item/item_682919 https://gfzpublic.gfz-potsdam.de/pubman/item/item_682919_4/component/file_1053890/682919.pdf |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/tcd-8-5539-2014 |
_version_ |
1766256483372105728 |