Application of HadCM3@Bristolv1.0 simulations of paleoclimate as forcing for an ice-sheet model, ANICE2.1:Set-up and benchmark experiments
Fully coupled ice-sheet-climate modelling over 10 000-100 000-year timescales at high spatial and temporal resolution remains beyond the capability of current computational systems. Forcing an ice-sheet model with precalculated output from a general circulation model (GCM) offers a middle ground, ba...
Published in: | Geoscientific Model Development |
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2018
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Online Access: | https://research.vu.nl/en/publications/4fe6d165-9509-465a-957f-5744e0c2f8bb https://doi.org/10.5194/gmd-11-4657-2018 https://hdl.handle.net/1871.1/4fe6d165-9509-465a-957f-5744e0c2f8bb http://www.scopus.com/inward/record.url?scp=85057091387&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85057091387&partnerID=8YFLogxK |
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ftvuamstcris:oai:research.vu.nl:publications/4fe6d165-9509-465a-957f-5744e0c2f8bb 2024-09-15T17:47:42+00:00 Application of HadCM3@Bristolv1.0 simulations of paleoclimate as forcing for an ice-sheet model, ANICE2.1:Set-up and benchmark experiments Berends, Constantijn J. De Boer, Bas Van De Wal, Roderik S.W. 2018-11-22 https://research.vu.nl/en/publications/4fe6d165-9509-465a-957f-5744e0c2f8bb https://doi.org/10.5194/gmd-11-4657-2018 https://hdl.handle.net/1871.1/4fe6d165-9509-465a-957f-5744e0c2f8bb http://www.scopus.com/inward/record.url?scp=85057091387&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85057091387&partnerID=8YFLogxK eng eng https://research.vu.nl/en/publications/4fe6d165-9509-465a-957f-5744e0c2f8bb info:eu-repo/semantics/openAccess Berends , C J , De Boer , B & Van De Wal , R S W 2018 , ' Application of HadCM3@Bristolv1.0 simulations of paleoclimate as forcing for an ice-sheet model, ANICE2.1 : Set-up and benchmark experiments ' , Geoscientific Model Development , vol. 11 , no. 11 , pp. 4657-4675 . https://doi.org/10.5194/gmd-11-4657-2018 /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water article 2018 ftvuamstcris https://doi.org/10.5194/gmd-11-4657-2018 2024-09-05T00:23:22Z Fully coupled ice-sheet-climate modelling over 10 000-100 000-year timescales at high spatial and temporal resolution remains beyond the capability of current computational systems. Forcing an ice-sheet model with precalculated output from a general circulation model (GCM) offers a middle ground, balancing the need to accurately capture both long-term processes, in particular circulation-driven changes in precipitation, and processes requiring a high spatial resolution like ablation. Here, we present and evaluate a model set-up that forces the ANICE 3-D thermodynamic ice-sheet-shelf model calculating the four large continental ice sheets (Antarctica, Greenland, North America, and Eurasia) with precalculated output from two steady-state simulations with the HadCM3 (GCM) using a so-called matrix method of coupling both components, whereby simulations with various levels of p CO2 and ice-sheet configuration are combined to form a time-continuous transient climate forcing consistent with the modelled ice sheets. We address the difficulties in downscaling low-resolution GCM output to the higher-resolution grid of an ice-sheet model and account for differences between GCM and ice-sheet model surface topography ranging from interglacial to glacial conditions. Although the approach presented here can be applied to a matrix with any number of GCM snapshots, we limited our experiments to a matrix of only two snapshots. As a benchmark experiment to assess the validity of this model set-up, we perform a simulation of the entire last glacial cycle from 120 kyr ago to present day. The simulated eustatic sea-level drop at the Last Glacial Maximum (LGM) for the combined Antarctic, Greenland, Eurasian, and North American ice sheets amounts to 100 m, in line with many other studies. The simulated ice sheets at the LGM agree well with the ICE-5G reconstruction and the more recent DATED-1 reconstruction in terms of total volume and geographical location of the ice sheets. Moreover, modelled benthic oxygen isotope abundance and the ... Article in Journal/Newspaper Antarc* Antarctic Antarctica Greenland Ice Sheet Vrije Universiteit Amsterdam (VU): Research Portal Geoscientific Model Development 11 11 4657 4675 |
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Open Polar |
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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 Berends, Constantijn J. De Boer, Bas Van De Wal, Roderik S.W. Application of HadCM3@Bristolv1.0 simulations of paleoclimate as forcing for an ice-sheet model, ANICE2.1:Set-up and benchmark experiments |
topic_facet |
/dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
description |
Fully coupled ice-sheet-climate modelling over 10 000-100 000-year timescales at high spatial and temporal resolution remains beyond the capability of current computational systems. Forcing an ice-sheet model with precalculated output from a general circulation model (GCM) offers a middle ground, balancing the need to accurately capture both long-term processes, in particular circulation-driven changes in precipitation, and processes requiring a high spatial resolution like ablation. Here, we present and evaluate a model set-up that forces the ANICE 3-D thermodynamic ice-sheet-shelf model calculating the four large continental ice sheets (Antarctica, Greenland, North America, and Eurasia) with precalculated output from two steady-state simulations with the HadCM3 (GCM) using a so-called matrix method of coupling both components, whereby simulations with various levels of p CO2 and ice-sheet configuration are combined to form a time-continuous transient climate forcing consistent with the modelled ice sheets. We address the difficulties in downscaling low-resolution GCM output to the higher-resolution grid of an ice-sheet model and account for differences between GCM and ice-sheet model surface topography ranging from interglacial to glacial conditions. Although the approach presented here can be applied to a matrix with any number of GCM snapshots, we limited our experiments to a matrix of only two snapshots. As a benchmark experiment to assess the validity of this model set-up, we perform a simulation of the entire last glacial cycle from 120 kyr ago to present day. The simulated eustatic sea-level drop at the Last Glacial Maximum (LGM) for the combined Antarctic, Greenland, Eurasian, and North American ice sheets amounts to 100 m, in line with many other studies. The simulated ice sheets at the LGM agree well with the ICE-5G reconstruction and the more recent DATED-1 reconstruction in terms of total volume and geographical location of the ice sheets. Moreover, modelled benthic oxygen isotope abundance and the ... |
format |
Article in Journal/Newspaper |
author |
Berends, Constantijn J. De Boer, Bas Van De Wal, Roderik S.W. |
author_facet |
Berends, Constantijn J. De Boer, Bas Van De Wal, Roderik S.W. |
author_sort |
Berends, Constantijn J. |
title |
Application of HadCM3@Bristolv1.0 simulations of paleoclimate as forcing for an ice-sheet model, ANICE2.1:Set-up and benchmark experiments |
title_short |
Application of HadCM3@Bristolv1.0 simulations of paleoclimate as forcing for an ice-sheet model, ANICE2.1:Set-up and benchmark experiments |
title_full |
Application of HadCM3@Bristolv1.0 simulations of paleoclimate as forcing for an ice-sheet model, ANICE2.1:Set-up and benchmark experiments |
title_fullStr |
Application of HadCM3@Bristolv1.0 simulations of paleoclimate as forcing for an ice-sheet model, ANICE2.1:Set-up and benchmark experiments |
title_full_unstemmed |
Application of HadCM3@Bristolv1.0 simulations of paleoclimate as forcing for an ice-sheet model, ANICE2.1:Set-up and benchmark experiments |
title_sort |
application of hadcm3@bristolv1.0 simulations of paleoclimate as forcing for an ice-sheet model, anice2.1:set-up and benchmark experiments |
publishDate |
2018 |
url |
https://research.vu.nl/en/publications/4fe6d165-9509-465a-957f-5744e0c2f8bb https://doi.org/10.5194/gmd-11-4657-2018 https://hdl.handle.net/1871.1/4fe6d165-9509-465a-957f-5744e0c2f8bb http://www.scopus.com/inward/record.url?scp=85057091387&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85057091387&partnerID=8YFLogxK |
genre |
Antarc* Antarctic Antarctica Greenland Ice Sheet |
genre_facet |
Antarc* Antarctic Antarctica Greenland Ice Sheet |
op_source |
Berends , C J , De Boer , B & Van De Wal , R S W 2018 , ' Application of HadCM3@Bristolv1.0 simulations of paleoclimate as forcing for an ice-sheet model, ANICE2.1 : Set-up and benchmark experiments ' , Geoscientific Model Development , vol. 11 , no. 11 , pp. 4657-4675 . https://doi.org/10.5194/gmd-11-4657-2018 |
op_relation |
https://research.vu.nl/en/publications/4fe6d165-9509-465a-957f-5744e0c2f8bb |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/gmd-11-4657-2018 |
container_title |
Geoscientific Model Development |
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11 |
container_issue |
11 |
container_start_page |
4657 |
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4675 |
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