Differences Between the CMIP5 and CMIP6 Antarctic Sea Ice Concentration Budgets
Abstract Compared to the Coupled Model Intercomparison Project Phase 5 (CMIP5) climate models, the Antarctic sea ice area (SIA) has been improved in Phase 6 (CMIP6). However, the lack of knowledge about the reliability of sea ice dynamic and thermodynamic processes in the CMIP6 models still limits t...
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Online Access: | https://doi.org/10.1029/2023GL105265 https://doaj.org/article/b3f73a3d03334d5fb581edc035279a66 |
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ftdoajarticles:oai:doaj.org/article:b3f73a3d03334d5fb581edc035279a66 2024-09-09T19:01:23+00:00 Differences Between the CMIP5 and CMIP6 Antarctic Sea Ice Concentration Budgets Yafei Nie Xia Lin Qinghua Yang Jiping Liu Dake Chen Petteri Uotila 2023-12-01T00:00:00Z https://doi.org/10.1029/2023GL105265 https://doaj.org/article/b3f73a3d03334d5fb581edc035279a66 EN eng Wiley https://doi.org/10.1029/2023GL105265 https://doaj.org/toc/0094-8276 https://doaj.org/toc/1944-8007 1944-8007 0094-8276 doi:10.1029/2023GL105265 https://doaj.org/article/b3f73a3d03334d5fb581edc035279a66 Geophysical Research Letters, Vol 50, Iss 23, Pp n/a-n/a (2023) Antarctic sea ice budgets CMIP6 Geophysics. Cosmic physics QC801-809 article 2023 ftdoajarticles https://doi.org/10.1029/2023GL105265 2024-08-05T17:49:23Z Abstract Compared to the Coupled Model Intercomparison Project Phase 5 (CMIP5) climate models, the Antarctic sea ice area (SIA) has been improved in Phase 6 (CMIP6). However, the lack of knowledge about the reliability of sea ice dynamic and thermodynamic processes in the CMIP6 models still limits the accuracy of Antarctic sea ice projections. Here, by using a novel and systematic statistical metric, the performance of CMIP5 and CMIP6 models with near‐realistic SIAs was assessed. We found improvements in CMIP6 models relative to CMIP5. Moreover, forcing the sea ice‐ocean model with atmospheric reanalysis led to excessive ice convergence compared to the fully coupled ocean‐sea ice‐atmosphere model, although the SIA bias could be much smaller. This prevalent insufficient ice divergence in the models is highly correlated with the negative ice thickness bias, highlighting the importance of ice thickness in the correct simulation of sea ice dynamics. Article in Journal/Newspaper Antarc* Antarctic Sea ice Directory of Open Access Journals: DOAJ Articles Antarctic The Antarctic Geophysical Research Letters 50 23 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Antarctic sea ice budgets CMIP6 Geophysics. Cosmic physics QC801-809 |
spellingShingle |
Antarctic sea ice budgets CMIP6 Geophysics. Cosmic physics QC801-809 Yafei Nie Xia Lin Qinghua Yang Jiping Liu Dake Chen Petteri Uotila Differences Between the CMIP5 and CMIP6 Antarctic Sea Ice Concentration Budgets |
topic_facet |
Antarctic sea ice budgets CMIP6 Geophysics. Cosmic physics QC801-809 |
description |
Abstract Compared to the Coupled Model Intercomparison Project Phase 5 (CMIP5) climate models, the Antarctic sea ice area (SIA) has been improved in Phase 6 (CMIP6). However, the lack of knowledge about the reliability of sea ice dynamic and thermodynamic processes in the CMIP6 models still limits the accuracy of Antarctic sea ice projections. Here, by using a novel and systematic statistical metric, the performance of CMIP5 and CMIP6 models with near‐realistic SIAs was assessed. We found improvements in CMIP6 models relative to CMIP5. Moreover, forcing the sea ice‐ocean model with atmospheric reanalysis led to excessive ice convergence compared to the fully coupled ocean‐sea ice‐atmosphere model, although the SIA bias could be much smaller. This prevalent insufficient ice divergence in the models is highly correlated with the negative ice thickness bias, highlighting the importance of ice thickness in the correct simulation of sea ice dynamics. |
format |
Article in Journal/Newspaper |
author |
Yafei Nie Xia Lin Qinghua Yang Jiping Liu Dake Chen Petteri Uotila |
author_facet |
Yafei Nie Xia Lin Qinghua Yang Jiping Liu Dake Chen Petteri Uotila |
author_sort |
Yafei Nie |
title |
Differences Between the CMIP5 and CMIP6 Antarctic Sea Ice Concentration Budgets |
title_short |
Differences Between the CMIP5 and CMIP6 Antarctic Sea Ice Concentration Budgets |
title_full |
Differences Between the CMIP5 and CMIP6 Antarctic Sea Ice Concentration Budgets |
title_fullStr |
Differences Between the CMIP5 and CMIP6 Antarctic Sea Ice Concentration Budgets |
title_full_unstemmed |
Differences Between the CMIP5 and CMIP6 Antarctic Sea Ice Concentration Budgets |
title_sort |
differences between the cmip5 and cmip6 antarctic sea ice concentration budgets |
publisher |
Wiley |
publishDate |
2023 |
url |
https://doi.org/10.1029/2023GL105265 https://doaj.org/article/b3f73a3d03334d5fb581edc035279a66 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Sea ice |
genre_facet |
Antarc* Antarctic Sea ice |
op_source |
Geophysical Research Letters, Vol 50, Iss 23, Pp n/a-n/a (2023) |
op_relation |
https://doi.org/10.1029/2023GL105265 https://doaj.org/toc/0094-8276 https://doaj.org/toc/1944-8007 1944-8007 0094-8276 doi:10.1029/2023GL105265 https://doaj.org/article/b3f73a3d03334d5fb581edc035279a66 |
op_doi |
https://doi.org/10.1029/2023GL105265 |
container_title |
Geophysical Research Letters |
container_volume |
50 |
container_issue |
23 |
_version_ |
1809945200684957696 |