The GRISLI ice sheet model (version 2.0):Calibration and validation for multi-millennial changes of the Antarctic ice sheet
In this paper, we present the GRISLI (Grenoble ice sheet and land ice) model in its newest revision (version 2.0). Whilst GRISLI is applicable to any given ice sheet, we focus here on the Antarctic ice sheet because it highlights the importance of grounding line dynamics. Important improvements have...
Published in: | Geoscientific Model Development |
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2018
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Online Access: | https://research.vu.nl/en/publications/ae0c7323-8da9-4690-bed3-4ab51faa51c6 https://doi.org/10.5194/gmd-11-5003-2018 https://hdl.handle.net/1871.1/ae0c7323-8da9-4690-bed3-4ab51faa51c6 http://www.scopus.com/inward/record.url?scp=85058348308&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85058348308&partnerID=8YFLogxK |
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ftvuamstcris:oai:research.vu.nl:publications/ae0c7323-8da9-4690-bed3-4ab51faa51c6 2024-09-15T17:42:54+00:00 The GRISLI ice sheet model (version 2.0):Calibration and validation for multi-millennial changes of the Antarctic ice sheet Quiquet, Aurélien Dumas, Christophe Ritz, Catherine Peyaud, Vincent Roche, Didier M. 2018-12-07 https://research.vu.nl/en/publications/ae0c7323-8da9-4690-bed3-4ab51faa51c6 https://doi.org/10.5194/gmd-11-5003-2018 https://hdl.handle.net/1871.1/ae0c7323-8da9-4690-bed3-4ab51faa51c6 http://www.scopus.com/inward/record.url?scp=85058348308&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85058348308&partnerID=8YFLogxK eng eng https://research.vu.nl/en/publications/ae0c7323-8da9-4690-bed3-4ab51faa51c6 info:eu-repo/semantics/openAccess Quiquet , A , Dumas , C , Ritz , C , Peyaud , V & Roche , D M 2018 , ' The GRISLI ice sheet model (version 2.0) : Calibration and validation for multi-millennial changes of the Antarctic ice sheet ' , Geoscientific Model Development , vol. 11 , no. 12 , pp. 5003-5025 . https://doi.org/10.5194/gmd-11-5003-2018 /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water article 2018 ftvuamstcris https://doi.org/10.5194/gmd-11-5003-2018 2024-08-07T23:47:18Z In this paper, we present the GRISLI (Grenoble ice sheet and land ice) model in its newest revision (version 2.0). Whilst GRISLI is applicable to any given ice sheet, we focus here on the Antarctic ice sheet because it highlights the importance of grounding line dynamics. Important improvements have been implemented in the model since its original version (Ritz et al., 2001). Notably, GRISLI now includes a basal hydrology model and an explicit flux computation at the grounding line based on the analytical formulations of Schoof (2007) or Tsai et al. (2015). We perform a full calibration of the model based on an ensemble of 300 simulations sampling mechanical parameter space using a Latin hypercube method. Performance of individual members is assessed relative to the deviation from present-day observed Antarctic ice thickness. To assess the ability of the model to simulate grounding line migration, we also present glacial-interglacial ice sheet changes throughout the last 400 kyr using the best ensemble members taking advantage of the capacity of the model to perform multi-millennial long-term integrations. To achieve this goal, we construct a simple climatic perturbation of present-day climate forcing fields based on two climate proxies: atmospheric and oceanic. The model is able to reproduce expected grounding line advances during glacial periods and subsequent retreats during terminations with reasonable glacial-interglacial ice volume changes. Article in Journal/Newspaper Antarc* Antarctic Ice Sheet Vrije Universiteit Amsterdam (VU): Research Portal Geoscientific Model Development 11 12 5003 5025 |
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Open Polar |
collection |
Vrije Universiteit Amsterdam (VU): Research Portal |
op_collection_id |
ftvuamstcris |
language |
English |
topic |
/dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
spellingShingle |
/dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water Quiquet, Aurélien Dumas, Christophe Ritz, Catherine Peyaud, Vincent Roche, Didier M. The GRISLI ice sheet model (version 2.0):Calibration and validation for multi-millennial changes of the Antarctic ice sheet |
topic_facet |
/dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
description |
In this paper, we present the GRISLI (Grenoble ice sheet and land ice) model in its newest revision (version 2.0). Whilst GRISLI is applicable to any given ice sheet, we focus here on the Antarctic ice sheet because it highlights the importance of grounding line dynamics. Important improvements have been implemented in the model since its original version (Ritz et al., 2001). Notably, GRISLI now includes a basal hydrology model and an explicit flux computation at the grounding line based on the analytical formulations of Schoof (2007) or Tsai et al. (2015). We perform a full calibration of the model based on an ensemble of 300 simulations sampling mechanical parameter space using a Latin hypercube method. Performance of individual members is assessed relative to the deviation from present-day observed Antarctic ice thickness. To assess the ability of the model to simulate grounding line migration, we also present glacial-interglacial ice sheet changes throughout the last 400 kyr using the best ensemble members taking advantage of the capacity of the model to perform multi-millennial long-term integrations. To achieve this goal, we construct a simple climatic perturbation of present-day climate forcing fields based on two climate proxies: atmospheric and oceanic. The model is able to reproduce expected grounding line advances during glacial periods and subsequent retreats during terminations with reasonable glacial-interglacial ice volume changes. |
format |
Article in Journal/Newspaper |
author |
Quiquet, Aurélien Dumas, Christophe Ritz, Catherine Peyaud, Vincent Roche, Didier M. |
author_facet |
Quiquet, Aurélien Dumas, Christophe Ritz, Catherine Peyaud, Vincent Roche, Didier M. |
author_sort |
Quiquet, Aurélien |
title |
The GRISLI ice sheet model (version 2.0):Calibration and validation for multi-millennial changes of the Antarctic ice sheet |
title_short |
The GRISLI ice sheet model (version 2.0):Calibration and validation for multi-millennial changes of the Antarctic ice sheet |
title_full |
The GRISLI ice sheet model (version 2.0):Calibration and validation for multi-millennial changes of the Antarctic ice sheet |
title_fullStr |
The GRISLI ice sheet model (version 2.0):Calibration and validation for multi-millennial changes of the Antarctic ice sheet |
title_full_unstemmed |
The GRISLI ice sheet model (version 2.0):Calibration and validation for multi-millennial changes of the Antarctic ice sheet |
title_sort |
grisli ice sheet model (version 2.0):calibration and validation for multi-millennial changes of the antarctic ice sheet |
publishDate |
2018 |
url |
https://research.vu.nl/en/publications/ae0c7323-8da9-4690-bed3-4ab51faa51c6 https://doi.org/10.5194/gmd-11-5003-2018 https://hdl.handle.net/1871.1/ae0c7323-8da9-4690-bed3-4ab51faa51c6 http://www.scopus.com/inward/record.url?scp=85058348308&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85058348308&partnerID=8YFLogxK |
genre |
Antarc* Antarctic Ice Sheet |
genre_facet |
Antarc* Antarctic Ice Sheet |
op_source |
Quiquet , A , Dumas , C , Ritz , C , Peyaud , V & Roche , D M 2018 , ' The GRISLI ice sheet model (version 2.0) : Calibration and validation for multi-millennial changes of the Antarctic ice sheet ' , Geoscientific Model Development , vol. 11 , no. 12 , pp. 5003-5025 . https://doi.org/10.5194/gmd-11-5003-2018 |
op_relation |
https://research.vu.nl/en/publications/ae0c7323-8da9-4690-bed3-4ab51faa51c6 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/gmd-11-5003-2018 |
container_title |
Geoscientific Model Development |
container_volume |
11 |
container_issue |
12 |
container_start_page |
5003 |
op_container_end_page |
5025 |
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1810489715846021120 |