A Gaussian process emulator for simulating ice sheet–climate interactions on a multi-million-year timescale: CLISEMv1.0
On multi-million-year timescales, fully coupled ice sheet–climate simulations are hampered by computational limitations, even at coarser resolutions and when using asynchronous coupling schemes. In this study, a novel coupling method CLISEMv1.0 (CLimate–Ice Sheet EMulator version 1.0) is present...
Published in: | Geoscientific Model Development |
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Copernicus GmbH
2021
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Online Access: | http://hdl.handle.net/2078.1/254627 https://doi.org/10.5194/gmd-14-6373-2021 |
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ftunivlouvain:oai:dial.uclouvain.be:boreal:254627 2024-05-12T08:05:14+00:00 A Gaussian process emulator for simulating ice sheet–climate interactions on a multi-million-year timescale: CLISEMv1.0 Van Breedam, Jonas Huybrechts, Philippe Crucifix, Michel UCL - SST/ELI/ELIC - Earth & Climate 2021 http://hdl.handle.net/2078.1/254627 https://doi.org/10.5194/gmd-14-6373-2021 eng eng Copernicus GmbH boreal:254627 http://hdl.handle.net/2078.1/254627 doi:10.5194/gmd-14-6373-2021 urn:ISSN:1991-959X urn:EISSN:1991-9603 info:eu-repo/semantics/openAccess Geoscientific Model Development, Vol. 14, no.10, p. 6373-6401 (2021) paleoclimates glacial inception Cenozoic climate modelling emulators info:eu-repo/semantics/article 2021 ftunivlouvain https://doi.org/10.5194/gmd-14-6373-2021 2024-04-17T16:36:25Z On multi-million-year timescales, fully coupled ice sheet–climate simulations are hampered by computational limitations, even at coarser resolutions and when using asynchronous coupling schemes. In this study, a novel coupling method CLISEMv1.0 (CLimate–Ice Sheet EMulator version 1.0) is presented, where a Gaussian process emulator is applied to the climate model HadSM3 and coupled to the ice sheet model AISMPALEO. The temperature and precipitation fields from HadSM3 are emulated to feed the mass balance model in AISMPALEO. The sensitivity of the evolution of the ice sheet over time is tested with respect to the number of predefined ice sheet geometries that the emulator is calibrated on. Additionally, the model performance is evaluated in terms of the formulation of the ice sheet parameter (being ice sheet volume, ice sheet area or both) and the coupling time. Sensitivity experiments are conducted to explore the uncertainty introduced by the emulator. In addition, different lapse rate adjustments are used between the relatively coarse climate model and the much finer ice sheet model topography. It is shown that the ice sheet evolution over a million-year timescale is strongly sensitive to the definition of the ice sheet parameter and to the number of predefined ice sheet geometries. With the new coupling procedure, we provide a computationally efficient framework for simulating ice sheet–climate interactions on a multi-million-year timescale that allows for a large number of sensitivity tests. Article in Journal/Newspaper Ice Sheet DIAL@UCLouvain (Université catholique de Louvain) Geoscientific Model Development 14 10 6373 6401 |
institution |
Open Polar |
collection |
DIAL@UCLouvain (Université catholique de Louvain) |
op_collection_id |
ftunivlouvain |
language |
English |
topic |
paleoclimates glacial inception Cenozoic climate modelling emulators |
spellingShingle |
paleoclimates glacial inception Cenozoic climate modelling emulators Van Breedam, Jonas Huybrechts, Philippe Crucifix, Michel A Gaussian process emulator for simulating ice sheet–climate interactions on a multi-million-year timescale: CLISEMv1.0 |
topic_facet |
paleoclimates glacial inception Cenozoic climate modelling emulators |
description |
On multi-million-year timescales, fully coupled ice sheet–climate simulations are hampered by computational limitations, even at coarser resolutions and when using asynchronous coupling schemes. In this study, a novel coupling method CLISEMv1.0 (CLimate–Ice Sheet EMulator version 1.0) is presented, where a Gaussian process emulator is applied to the climate model HadSM3 and coupled to the ice sheet model AISMPALEO. The temperature and precipitation fields from HadSM3 are emulated to feed the mass balance model in AISMPALEO. The sensitivity of the evolution of the ice sheet over time is tested with respect to the number of predefined ice sheet geometries that the emulator is calibrated on. Additionally, the model performance is evaluated in terms of the formulation of the ice sheet parameter (being ice sheet volume, ice sheet area or both) and the coupling time. Sensitivity experiments are conducted to explore the uncertainty introduced by the emulator. In addition, different lapse rate adjustments are used between the relatively coarse climate model and the much finer ice sheet model topography. It is shown that the ice sheet evolution over a million-year timescale is strongly sensitive to the definition of the ice sheet parameter and to the number of predefined ice sheet geometries. With the new coupling procedure, we provide a computationally efficient framework for simulating ice sheet–climate interactions on a multi-million-year timescale that allows for a large number of sensitivity tests. |
author2 |
UCL - SST/ELI/ELIC - Earth & Climate |
format |
Article in Journal/Newspaper |
author |
Van Breedam, Jonas Huybrechts, Philippe Crucifix, Michel |
author_facet |
Van Breedam, Jonas Huybrechts, Philippe Crucifix, Michel |
author_sort |
Van Breedam, Jonas |
title |
A Gaussian process emulator for simulating ice sheet–climate interactions on a multi-million-year timescale: CLISEMv1.0 |
title_short |
A Gaussian process emulator for simulating ice sheet–climate interactions on a multi-million-year timescale: CLISEMv1.0 |
title_full |
A Gaussian process emulator for simulating ice sheet–climate interactions on a multi-million-year timescale: CLISEMv1.0 |
title_fullStr |
A Gaussian process emulator for simulating ice sheet–climate interactions on a multi-million-year timescale: CLISEMv1.0 |
title_full_unstemmed |
A Gaussian process emulator for simulating ice sheet–climate interactions on a multi-million-year timescale: CLISEMv1.0 |
title_sort |
gaussian process emulator for simulating ice sheet–climate interactions on a multi-million-year timescale: clisemv1.0 |
publisher |
Copernicus GmbH |
publishDate |
2021 |
url |
http://hdl.handle.net/2078.1/254627 https://doi.org/10.5194/gmd-14-6373-2021 |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
Geoscientific Model Development, Vol. 14, no.10, p. 6373-6401 (2021) |
op_relation |
boreal:254627 http://hdl.handle.net/2078.1/254627 doi:10.5194/gmd-14-6373-2021 urn:ISSN:1991-959X urn:EISSN:1991-9603 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/gmd-14-6373-2021 |
container_title |
Geoscientific Model Development |
container_volume |
14 |
container_issue |
10 |
container_start_page |
6373 |
op_container_end_page |
6401 |
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1798847514900692992 |