Ice sheet model dependency of the simulated Greenland Ice Sheet in the mid-Pliocene
The understanding of the nature and behavior of ice sheets in past warm periods is important for constraining the potential impacts of future climate change. The Pliocene warm period (between 3.264 and 3.025 Ma) saw global temperatures similar to those projected for future climates; nevertheless, Pl...
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Online Access: | https://doi.org/10.5194/cp-11-369-2015 https://cp.copernicus.org/articles/11/369/2015/ |
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fttriple:oai:gotriple.eu:LMbWbPgrw7nmjsZJ3Fvtm 2023-05-15T16:25:53+02:00 Ice sheet model dependency of the simulated Greenland Ice Sheet in the mid-Pliocene Koenig, S. J. Dolan, A. M. de Boer, B. Stone, E. J. Hill, D. J. DeConto, R. M. Abe-Ouchi, A. Lunt, D. J. Pollard, D. Quiquet, A. Saito, F. Savage, J. van de Wal, R. 2018-09-27 https://doi.org/10.5194/cp-11-369-2015 https://cp.copernicus.org/articles/11/369/2015/ en eng Copernicus Publications doi:10.5194/cp-11-369-2015 10670/1.b5c1ks 1814-9324 1814-9332 https://cp.copernicus.org/articles/11/369/2015/ undefined Geographica Helvetica - geography eISSN: 1814-9332 geo envir Text https://vocabularies.coar-repositories.org/resource_types/c_18cf/ Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2018 fttriple https://doi.org/10.5194/cp-11-369-2015 2023-01-22T17:39:28Z The understanding of the nature and behavior of ice sheets in past warm periods is important for constraining the potential impacts of future climate change. The Pliocene warm period (between 3.264 and 3.025 Ma) saw global temperatures similar to those projected for future climates; nevertheless, Pliocene ice locations and extents are still poorly constrained. We present results from the efforts to simulate mid-Pliocene Greenland Ice Sheets by means of the international Pliocene Ice Sheet Modeling Intercomparison Project (PLISMIP). We compare the performance of existing numerical ice sheet models in simulating modern control and mid-Pliocene ice sheets with a suite of sensitivity experiments guided by available proxy records. We quantify equilibrated ice sheet volume on Greenland, identifying a potential range in sea level contributions from warm Pliocene scenarios. A series of statistical measures are performed to quantify the confidence of simulations with focus on inter-model and inter-scenario differences. We find that Pliocene Greenland Ice Sheets are less sensitive to differences in ice sheet model configurations and internal physical quantities than to changes in imposed climate forcing. We conclude that Pliocene ice was most likely to be limited to the highest elevations in eastern and southern Greenland as simulated with the highest confidence and by synthesizing available regional proxies; however, the extent of those ice caps needs to be further constrained by using a range of general circulation model (GCM) climate forcings. Article in Journal/Newspaper Greenland Ice Sheet Unknown Greenland Climate of the Past 11 3 369 381 |
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English |
topic |
geo envir |
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geo envir Koenig, S. J. Dolan, A. M. de Boer, B. Stone, E. J. Hill, D. J. DeConto, R. M. Abe-Ouchi, A. Lunt, D. J. Pollard, D. Quiquet, A. Saito, F. Savage, J. van de Wal, R. Ice sheet model dependency of the simulated Greenland Ice Sheet in the mid-Pliocene |
topic_facet |
geo envir |
description |
The understanding of the nature and behavior of ice sheets in past warm periods is important for constraining the potential impacts of future climate change. The Pliocene warm period (between 3.264 and 3.025 Ma) saw global temperatures similar to those projected for future climates; nevertheless, Pliocene ice locations and extents are still poorly constrained. We present results from the efforts to simulate mid-Pliocene Greenland Ice Sheets by means of the international Pliocene Ice Sheet Modeling Intercomparison Project (PLISMIP). We compare the performance of existing numerical ice sheet models in simulating modern control and mid-Pliocene ice sheets with a suite of sensitivity experiments guided by available proxy records. We quantify equilibrated ice sheet volume on Greenland, identifying a potential range in sea level contributions from warm Pliocene scenarios. A series of statistical measures are performed to quantify the confidence of simulations with focus on inter-model and inter-scenario differences. We find that Pliocene Greenland Ice Sheets are less sensitive to differences in ice sheet model configurations and internal physical quantities than to changes in imposed climate forcing. We conclude that Pliocene ice was most likely to be limited to the highest elevations in eastern and southern Greenland as simulated with the highest confidence and by synthesizing available regional proxies; however, the extent of those ice caps needs to be further constrained by using a range of general circulation model (GCM) climate forcings. |
format |
Article in Journal/Newspaper |
author |
Koenig, S. J. Dolan, A. M. de Boer, B. Stone, E. J. Hill, D. J. DeConto, R. M. Abe-Ouchi, A. Lunt, D. J. Pollard, D. Quiquet, A. Saito, F. Savage, J. van de Wal, R. |
author_facet |
Koenig, S. J. Dolan, A. M. de Boer, B. Stone, E. J. Hill, D. J. DeConto, R. M. Abe-Ouchi, A. Lunt, D. J. Pollard, D. Quiquet, A. Saito, F. Savage, J. van de Wal, R. |
author_sort |
Koenig, S. J. |
title |
Ice sheet model dependency of the simulated Greenland Ice Sheet in the mid-Pliocene |
title_short |
Ice sheet model dependency of the simulated Greenland Ice Sheet in the mid-Pliocene |
title_full |
Ice sheet model dependency of the simulated Greenland Ice Sheet in the mid-Pliocene |
title_fullStr |
Ice sheet model dependency of the simulated Greenland Ice Sheet in the mid-Pliocene |
title_full_unstemmed |
Ice sheet model dependency of the simulated Greenland Ice Sheet in the mid-Pliocene |
title_sort |
ice sheet model dependency of the simulated greenland ice sheet in the mid-pliocene |
publisher |
Copernicus Publications |
publishDate |
2018 |
url |
https://doi.org/10.5194/cp-11-369-2015 https://cp.copernicus.org/articles/11/369/2015/ |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Ice Sheet |
genre_facet |
Greenland Ice Sheet |
op_source |
Geographica Helvetica - geography eISSN: 1814-9332 |
op_relation |
doi:10.5194/cp-11-369-2015 10670/1.b5c1ks 1814-9324 1814-9332 https://cp.copernicus.org/articles/11/369/2015/ |
op_rights |
undefined |
op_doi |
https://doi.org/10.5194/cp-11-369-2015 |
container_title |
Climate of the Past |
container_volume |
11 |
container_issue |
3 |
container_start_page |
369 |
op_container_end_page |
381 |
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1766014730730733568 |