CMIP5 model selection for ISMIP6 ice sheet model forcing: Greenland and Antarctica
The ice sheet model intercomparison project for CMIP6 (ISMIP6) effort brings together the ice sheet and climate modeling communities to gain understanding of the ice sheet contribution to sea level rise. ISMIP6 conducts stand-alone ice sheet experiments that use space- and time-varying forcing deriv...
Published in: | The Cryosphere |
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Language: | English |
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European Geosciences Union (EGU)
2020
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Online Access: | https://hdl.handle.net/10037/19009 https://doi.org/10.5194/tc-14-855-2020 |
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ftunivtroemsoe:oai:munin.uit.no:10037/19009 2023-05-15T13:52:48+02:00 CMIP5 model selection for ISMIP6 ice sheet model forcing: Greenland and Antarctica Barthel, Alice Agosta, Cécile Little, Christopher M. Hattermann, Tore Jourdain, Nicolas Goelzer, Heiko Nowicki, Sophie Seroussi, Helene Straneo, Fiammetta Bracegirdle, Thomas J. 2020-03-06 https://hdl.handle.net/10037/19009 https://doi.org/10.5194/tc-14-855-2020 eng eng European Geosciences Union (EGU) The Cryosphere info:eu-repo/grantAgreement/RCN/FRINATEK/231549/Norway/Inflow of Warm Deep Water on the Antarctic Continental Shelves// info:eu-repo/grantAgreement/RCN/?/280727/Norway/?/?/ Barthel, Agosta, Little, Hattermann, Jourdain, Goelzer, Nowicki, Seroussi, Straneo, Bracegirdle. CMIP5 model selection for ISMIP6 ice sheet model forcing: Greenland and Antarctica. The Cryosphere. 2020;14(3):855-879 FRIDAID 1822741 doi:10.5194/tc-14-855-2020 1994-0416 1994-0424 https://hdl.handle.net/10037/19009 openAccess Copyright 2020 The Author(s) VDP::Mathematics and natural science: 400 VDP::Matematikk og Naturvitenskap: 400 VDP::Technology: 500 VDP::Teknologi: 500 Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2020 ftunivtroemsoe https://doi.org/10.5194/tc-14-855-2020 2021-06-25T17:57:36Z The ice sheet model intercomparison project for CMIP6 (ISMIP6) effort brings together the ice sheet and climate modeling communities to gain understanding of the ice sheet contribution to sea level rise. ISMIP6 conducts stand-alone ice sheet experiments that use space- and time-varying forcing derived from atmosphere–ocean coupled global climate models (AOGCMs) to reflect plausible trajectories for climate projections. The goal of this study is to recommend a subset of CMIP5 AOGCMs (three core and three targeted) to produce forcing for ISMIP6 stand-alone ice sheet simulations, based on (i) their representation of current climate near Antarctica and Greenland relative to observations and (ii) their ability to sample a diversity of projected atmosphere and ocean changes over the 21st century. The selection is performed separately for Greenland and Antarctica. Model evaluation over the historical period focuses on variables used to generate ice sheet forcing. For stage (i), we combine metrics of atmosphere and surface ocean state (annual- and seasonal-mean variables over large spatial domains) with metrics of time-mean subsurface ocean temperature biases averaged over sectors of the continental shelf. For stage (ii), we maximize the diversity of climate projections among the best-performing models. Model selection is also constrained by technical limitations, such as availability of required data from RCP2.6 and RCP8.5 projections. The selected top three CMIP5 climate models are CCSM4, MIROC-ESM-CHEM, and NorESM1-M for Antarctica and HadGEM2-ES, MIROC5, and NorESM1-M for Greenland. This model selection was designed specifically for ISMIP6 but can be adapted for other applications. Article in Journal/Newspaper Antarc* Antarctica Greenland Ice Sheet The Cryosphere University of Tromsø: Munin Open Research Archive Greenland The Cryosphere 14 3 855 879 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Mathematics and natural science: 400 VDP::Matematikk og Naturvitenskap: 400 VDP::Technology: 500 VDP::Teknologi: 500 |
spellingShingle |
VDP::Mathematics and natural science: 400 VDP::Matematikk og Naturvitenskap: 400 VDP::Technology: 500 VDP::Teknologi: 500 Barthel, Alice Agosta, Cécile Little, Christopher M. Hattermann, Tore Jourdain, Nicolas Goelzer, Heiko Nowicki, Sophie Seroussi, Helene Straneo, Fiammetta Bracegirdle, Thomas J. CMIP5 model selection for ISMIP6 ice sheet model forcing: Greenland and Antarctica |
topic_facet |
VDP::Mathematics and natural science: 400 VDP::Matematikk og Naturvitenskap: 400 VDP::Technology: 500 VDP::Teknologi: 500 |
description |
The ice sheet model intercomparison project for CMIP6 (ISMIP6) effort brings together the ice sheet and climate modeling communities to gain understanding of the ice sheet contribution to sea level rise. ISMIP6 conducts stand-alone ice sheet experiments that use space- and time-varying forcing derived from atmosphere–ocean coupled global climate models (AOGCMs) to reflect plausible trajectories for climate projections. The goal of this study is to recommend a subset of CMIP5 AOGCMs (three core and three targeted) to produce forcing for ISMIP6 stand-alone ice sheet simulations, based on (i) their representation of current climate near Antarctica and Greenland relative to observations and (ii) their ability to sample a diversity of projected atmosphere and ocean changes over the 21st century. The selection is performed separately for Greenland and Antarctica. Model evaluation over the historical period focuses on variables used to generate ice sheet forcing. For stage (i), we combine metrics of atmosphere and surface ocean state (annual- and seasonal-mean variables over large spatial domains) with metrics of time-mean subsurface ocean temperature biases averaged over sectors of the continental shelf. For stage (ii), we maximize the diversity of climate projections among the best-performing models. Model selection is also constrained by technical limitations, such as availability of required data from RCP2.6 and RCP8.5 projections. The selected top three CMIP5 climate models are CCSM4, MIROC-ESM-CHEM, and NorESM1-M for Antarctica and HadGEM2-ES, MIROC5, and NorESM1-M for Greenland. This model selection was designed specifically for ISMIP6 but can be adapted for other applications. |
format |
Article in Journal/Newspaper |
author |
Barthel, Alice Agosta, Cécile Little, Christopher M. Hattermann, Tore Jourdain, Nicolas Goelzer, Heiko Nowicki, Sophie Seroussi, Helene Straneo, Fiammetta Bracegirdle, Thomas J. |
author_facet |
Barthel, Alice Agosta, Cécile Little, Christopher M. Hattermann, Tore Jourdain, Nicolas Goelzer, Heiko Nowicki, Sophie Seroussi, Helene Straneo, Fiammetta Bracegirdle, Thomas J. |
author_sort |
Barthel, Alice |
title |
CMIP5 model selection for ISMIP6 ice sheet model forcing: Greenland and Antarctica |
title_short |
CMIP5 model selection for ISMIP6 ice sheet model forcing: Greenland and Antarctica |
title_full |
CMIP5 model selection for ISMIP6 ice sheet model forcing: Greenland and Antarctica |
title_fullStr |
CMIP5 model selection for ISMIP6 ice sheet model forcing: Greenland and Antarctica |
title_full_unstemmed |
CMIP5 model selection for ISMIP6 ice sheet model forcing: Greenland and Antarctica |
title_sort |
cmip5 model selection for ismip6 ice sheet model forcing: greenland and antarctica |
publisher |
European Geosciences Union (EGU) |
publishDate |
2020 |
url |
https://hdl.handle.net/10037/19009 https://doi.org/10.5194/tc-14-855-2020 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Antarc* Antarctica Greenland Ice Sheet The Cryosphere |
genre_facet |
Antarc* Antarctica Greenland Ice Sheet The Cryosphere |
op_relation |
The Cryosphere info:eu-repo/grantAgreement/RCN/FRINATEK/231549/Norway/Inflow of Warm Deep Water on the Antarctic Continental Shelves// info:eu-repo/grantAgreement/RCN/?/280727/Norway/?/?/ Barthel, Agosta, Little, Hattermann, Jourdain, Goelzer, Nowicki, Seroussi, Straneo, Bracegirdle. CMIP5 model selection for ISMIP6 ice sheet model forcing: Greenland and Antarctica. The Cryosphere. 2020;14(3):855-879 FRIDAID 1822741 doi:10.5194/tc-14-855-2020 1994-0416 1994-0424 https://hdl.handle.net/10037/19009 |
op_rights |
openAccess Copyright 2020 The Author(s) |
op_doi |
https://doi.org/10.5194/tc-14-855-2020 |
container_title |
The Cryosphere |
container_volume |
14 |
container_issue |
3 |
container_start_page |
855 |
op_container_end_page |
879 |
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1766257559906287616 |