Seasonal extrema of sea surface temperature in CMIP6 models
CMIP6 model sea surface temperature (SST) seasonal extrema averaged over 1981–2010 are assessed against the World Ocean Atlas (WOA18) observational climatology. We propose a mask to identify and exclude regions of large differences between three commonly used climatologies (WOA18, WOCE-Argo Global H...
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Copernicus Publications
2022
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fttriple:oai:gotriple.eu:oai:doaj.org/article:ac649e73341b4888adb453bcc233f24a 2023-05-15T18:18:20+02:00 Seasonal extrema of sea surface temperature in CMIP6 models Y. Wang K. J. Heywood D. P. Stevens G. M. Damerell 2022-06-01 https://doi.org/10.5194/os-18-839-2022 https://os.copernicus.org/articles/18/839/2022/os-18-839-2022.pdf https://doaj.org/article/ac649e73341b4888adb453bcc233f24a en eng Copernicus Publications doi:10.5194/os-18-839-2022 1812-0784 1812-0792 https://os.copernicus.org/articles/18/839/2022/os-18-839-2022.pdf https://doaj.org/article/ac649e73341b4888adb453bcc233f24a undefined Ocean Science, Vol 18, Pp 839-855 (2022) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2022 fttriple https://doi.org/10.5194/os-18-839-2022 2023-01-22T18:09:57Z CMIP6 model sea surface temperature (SST) seasonal extrema averaged over 1981–2010 are assessed against the World Ocean Atlas (WOA18) observational climatology. We propose a mask to identify and exclude regions of large differences between three commonly used climatologies (WOA18, WOCE-Argo Global Hydrographic climatology (WAGHC) and the Hadley Centre Sea Ice and Sea Surface Temperature data set (HadISST)). The biases in SST seasonal extrema are largely consistent with the annual mean SST biases. However, the amplitude and spatial pattern of SST bias vary seasonally in the 20 CMIP6 models assessed. Large seasonal variations in the SST bias occur in eastern boundary upwelling regions, polar regions, the North Pacific and the eastern equatorial Atlantic. These results demonstrate the importance of evaluating model performance not simply against annual mean properties. Models with greater vertical resolution in their ocean component typically demonstrate better representation of SST extrema, particularly seasonal maximum SST. No significant relationship of SST seasonal extrema with horizontal ocean model resolution is found. Article in Journal/Newspaper Sea ice Unknown Pacific Ocean Science 18 3 839 855 |
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English |
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geo envir |
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geo envir Y. Wang K. J. Heywood D. P. Stevens G. M. Damerell Seasonal extrema of sea surface temperature in CMIP6 models |
topic_facet |
geo envir |
description |
CMIP6 model sea surface temperature (SST) seasonal extrema averaged over 1981–2010 are assessed against the World Ocean Atlas (WOA18) observational climatology. We propose a mask to identify and exclude regions of large differences between three commonly used climatologies (WOA18, WOCE-Argo Global Hydrographic climatology (WAGHC) and the Hadley Centre Sea Ice and Sea Surface Temperature data set (HadISST)). The biases in SST seasonal extrema are largely consistent with the annual mean SST biases. However, the amplitude and spatial pattern of SST bias vary seasonally in the 20 CMIP6 models assessed. Large seasonal variations in the SST bias occur in eastern boundary upwelling regions, polar regions, the North Pacific and the eastern equatorial Atlantic. These results demonstrate the importance of evaluating model performance not simply against annual mean properties. Models with greater vertical resolution in their ocean component typically demonstrate better representation of SST extrema, particularly seasonal maximum SST. No significant relationship of SST seasonal extrema with horizontal ocean model resolution is found. |
format |
Article in Journal/Newspaper |
author |
Y. Wang K. J. Heywood D. P. Stevens G. M. Damerell |
author_facet |
Y. Wang K. J. Heywood D. P. Stevens G. M. Damerell |
author_sort |
Y. Wang |
title |
Seasonal extrema of sea surface temperature in CMIP6 models |
title_short |
Seasonal extrema of sea surface temperature in CMIP6 models |
title_full |
Seasonal extrema of sea surface temperature in CMIP6 models |
title_fullStr |
Seasonal extrema of sea surface temperature in CMIP6 models |
title_full_unstemmed |
Seasonal extrema of sea surface temperature in CMIP6 models |
title_sort |
seasonal extrema of sea surface temperature in cmip6 models |
publisher |
Copernicus Publications |
publishDate |
2022 |
url |
https://doi.org/10.5194/os-18-839-2022 https://os.copernicus.org/articles/18/839/2022/os-18-839-2022.pdf https://doaj.org/article/ac649e73341b4888adb453bcc233f24a |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
Ocean Science, Vol 18, Pp 839-855 (2022) |
op_relation |
doi:10.5194/os-18-839-2022 1812-0784 1812-0792 https://os.copernicus.org/articles/18/839/2022/os-18-839-2022.pdf https://doaj.org/article/ac649e73341b4888adb453bcc233f24a |
op_rights |
undefined |
op_doi |
https://doi.org/10.5194/os-18-839-2022 |
container_title |
Ocean Science |
container_volume |
18 |
container_issue |
3 |
container_start_page |
839 |
op_container_end_page |
855 |
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