Ice-sheet configuration in the CMIP5/PMIP3 Last Glacial Maximum experiments

We describe the creation of a data set describing changes related to the presence of ice sheets, including ice-sheet extent and height, ice-shelf extent, and the distribution and elevation of ice-free land at the Last Glacial Maximum (LGM), which were used in LGM experiments conducted as part of the...

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Published in:Geoscientific Model Development
Other Authors: Abe-Ouchi, A. (author), Saito, F. (author), Kageyama, M. (author), Braconnot, P. (author), Harrison, S. (author), Lambeck, K. (author), Otto-Bliesner, Bette (author), Peltier, W. (author), Tarasov, L. (author), Peterschmitt, J.-Y. (author), Takahashi, K. (author)
Format: Article in Journal/Newspaper
Language:English
Published: Copernicus Publications 2015
Subjects:
Online Access:http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-022-487
https://doi.org/10.5194/gmd-8-3621-2015
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spelling ftncar:oai:drupal-site.org:articles_17816 2023-09-05T13:13:19+02:00 Ice-sheet configuration in the CMIP5/PMIP3 Last Glacial Maximum experiments Abe-Ouchi, A. (author) Saito, F. (author) Kageyama, M. (author) Braconnot, P. (author) Harrison, S. (author) Lambeck, K. (author) Otto-Bliesner, Bette (author) Peltier, W. (author) Tarasov, L. (author) Peterschmitt, J.-Y. (author) Takahashi, K. (author) 2015-11-06 application/pdf http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-022-487 https://doi.org/10.5194/gmd-8-3621-2015 en eng Copernicus Publications Geoscientific Model Development ETOPO1 1 Arc-Minute Global Relief Model: Procedures, Data Sources and Analysis--10.7289/V5C8276M ark:/85065/d78g8n61 http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-022-487 doi:10.5194/gmd-8-3621-2015 Copyright Author(s) 2015. This work is distributed under the Creative Commons Attribution 3.0 License Text article 2015 ftncar https://doi.org/10.5194/gmd-8-3621-2015 2023-08-14T18:44:13Z We describe the creation of a data set describing changes related to the presence of ice sheets, including ice-sheet extent and height, ice-shelf extent, and the distribution and elevation of ice-free land at the Last Glacial Maximum (LGM), which were used in LGM experiments conducted as part of the fifth phase of the Coupled Modelling Intercomparison Project (CMIP5) and the third phase of the Palaeoclimate Modelling Intercomparison Project (PMIP3). The CMIP5/PMIP3 data sets were created from reconstructions made by three different groups, which were all obtained using a model-inversion approach but differ in the assumptions used in the modelling and in the type of data used as constraints. The ice-sheet extent in the Northern Hemisphere (NH) does not vary substantially between the three individual data sources. The difference in the topography of the NH ice sheets is also moderate, and smaller than the differences between these reconstructions (and the resultant composite reconstruction) and ice-sheet reconstructions used in previous generations of PMIP. Only two of the individual reconstructions provide information for Antarctica. The discrepancy between these two reconstructions is larger than the difference for the NH ice sheets, although still less than the difference between the composite reconstruction and previous PMIP ice-sheet reconstructions. Although largely confined to the ice-covered regions, differences between the climate response to the individual LGM reconstructions extend over the North Atlantic Ocean and Northern Hemisphere continents, partly through atmospheric stationary waves. Differences between the climate response to the CMIP5/PMIP3 composite and any individual ice-sheet reconstruction are smaller than those between the CMIP5/PMIP3 composite and the ice sheet used in the last phase of PMIP (PMIP2). Article in Journal/Newspaper Antarc* Antarctica Ice Sheet Ice Shelf North Atlantic OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Geoscientific Model Development 8 11 3621 3637
institution Open Polar
collection OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
op_collection_id ftncar
language English
description We describe the creation of a data set describing changes related to the presence of ice sheets, including ice-sheet extent and height, ice-shelf extent, and the distribution and elevation of ice-free land at the Last Glacial Maximum (LGM), which were used in LGM experiments conducted as part of the fifth phase of the Coupled Modelling Intercomparison Project (CMIP5) and the third phase of the Palaeoclimate Modelling Intercomparison Project (PMIP3). The CMIP5/PMIP3 data sets were created from reconstructions made by three different groups, which were all obtained using a model-inversion approach but differ in the assumptions used in the modelling and in the type of data used as constraints. The ice-sheet extent in the Northern Hemisphere (NH) does not vary substantially between the three individual data sources. The difference in the topography of the NH ice sheets is also moderate, and smaller than the differences between these reconstructions (and the resultant composite reconstruction) and ice-sheet reconstructions used in previous generations of PMIP. Only two of the individual reconstructions provide information for Antarctica. The discrepancy between these two reconstructions is larger than the difference for the NH ice sheets, although still less than the difference between the composite reconstruction and previous PMIP ice-sheet reconstructions. Although largely confined to the ice-covered regions, differences between the climate response to the individual LGM reconstructions extend over the North Atlantic Ocean and Northern Hemisphere continents, partly through atmospheric stationary waves. Differences between the climate response to the CMIP5/PMIP3 composite and any individual ice-sheet reconstruction are smaller than those between the CMIP5/PMIP3 composite and the ice sheet used in the last phase of PMIP (PMIP2).
author2 Abe-Ouchi, A. (author)
Saito, F. (author)
Kageyama, M. (author)
Braconnot, P. (author)
Harrison, S. (author)
Lambeck, K. (author)
Otto-Bliesner, Bette (author)
Peltier, W. (author)
Tarasov, L. (author)
Peterschmitt, J.-Y. (author)
Takahashi, K. (author)
format Article in Journal/Newspaper
title Ice-sheet configuration in the CMIP5/PMIP3 Last Glacial Maximum experiments
spellingShingle Ice-sheet configuration in the CMIP5/PMIP3 Last Glacial Maximum experiments
title_short Ice-sheet configuration in the CMIP5/PMIP3 Last Glacial Maximum experiments
title_full Ice-sheet configuration in the CMIP5/PMIP3 Last Glacial Maximum experiments
title_fullStr Ice-sheet configuration in the CMIP5/PMIP3 Last Glacial Maximum experiments
title_full_unstemmed Ice-sheet configuration in the CMIP5/PMIP3 Last Glacial Maximum experiments
title_sort ice-sheet configuration in the cmip5/pmip3 last glacial maximum experiments
publisher Copernicus Publications
publishDate 2015
url http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-022-487
https://doi.org/10.5194/gmd-8-3621-2015
genre Antarc*
Antarctica
Ice Sheet
Ice Shelf
North Atlantic
genre_facet Antarc*
Antarctica
Ice Sheet
Ice Shelf
North Atlantic
op_relation Geoscientific Model Development
ETOPO1 1 Arc-Minute Global Relief Model: Procedures, Data Sources and Analysis--10.7289/V5C8276M
ark:/85065/d78g8n61
http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-022-487
doi:10.5194/gmd-8-3621-2015
op_rights Copyright Author(s) 2015. This work is distributed under the Creative Commons Attribution 3.0 License
op_doi https://doi.org/10.5194/gmd-8-3621-2015
container_title Geoscientific Model Development
container_volume 8
container_issue 11
container_start_page 3621
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