Impact of horizontal resolution on global ocean–sea ice model simulations based on the experimental protocols of the Ocean Model Intercomparison Project phase 2 (OMIP-2)
This paper presents global comparisons of fundamental global climate variables from a suite of four pairs of matched low- and high-resolution ocean and sea ice simulations that are obtained following the OMIP-2 protocol (Griffies et al., 2016) and integrated for one cycle (1958–2018) of the JRA55-do...
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ftdoajarticles:oai:doaj.org/article:af6dffa94c234a028f56143f00a8f329 2023-05-15T13:55:13+02:00 Impact of horizontal resolution on global ocean–sea ice model simulations based on the experimental protocols of the Ocean Model Intercomparison Project phase 2 (OMIP-2) E. P. Chassignet S. G. Yeager B. Fox-Kemper A. Bozec F. Castruccio G. Danabasoglu C. Horvat W. M. Kim N. Koldunov Y. Li P. Lin H. Liu D. V. Sein D. Sidorenko Q. Wang X. Xu 2020-09-01T00:00:00Z https://doi.org/10.5194/gmd-13-4595-2020 https://doaj.org/article/af6dffa94c234a028f56143f00a8f329 EN eng Copernicus Publications https://gmd.copernicus.org/articles/13/4595/2020/gmd-13-4595-2020.pdf https://doaj.org/toc/1991-959X https://doaj.org/toc/1991-9603 doi:10.5194/gmd-13-4595-2020 1991-959X 1991-9603 https://doaj.org/article/af6dffa94c234a028f56143f00a8f329 Geoscientific Model Development, Vol 13, Pp 4595-4637 (2020) Geology QE1-996.5 article 2020 ftdoajarticles https://doi.org/10.5194/gmd-13-4595-2020 2022-12-31T12:33:09Z This paper presents global comparisons of fundamental global climate variables from a suite of four pairs of matched low- and high-resolution ocean and sea ice simulations that are obtained following the OMIP-2 protocol (Griffies et al., 2016) and integrated for one cycle (1958–2018) of the JRA55-do atmospheric state and runoff dataset (Tsujino et al., 2018). Our goal is to assess the robustness of climate-relevant improvements in ocean simulations (mean and variability) associated with moving from coarse ( ∼ 1 ∘ ) to eddy-resolving ( ∼ 0.1 ∘ ) horizontal resolutions. The models are diverse in their numerics and parameterizations, but each low-resolution and high-resolution pair of models is matched so as to isolate, to the extent possible, the effects of horizontal resolution. A variety of observational datasets are used to assess the fidelity of simulated temperature and salinity, sea surface height, kinetic energy, heat and volume transports, and sea ice distribution. This paper provides a crucial benchmark for future studies comparing and improving different schemes in any of the models used in this study or similar ones. The biases in the low-resolution simulations are familiar, and their gross features – position, strength, and variability of western boundary currents, equatorial currents, and the Antarctic Circumpolar Current – are significantly improved in the high-resolution models. However, despite the fact that the high-resolution models “resolve” most of these features, the improvements in temperature and salinity are inconsistent among the different model families, and some regions show increased bias over their low-resolution counterparts. Greatly enhanced horizontal resolution does not deliver unambiguous bias improvement in all regions for all models. Article in Journal/Newspaper Antarc* Antarctic Sea ice Directory of Open Access Journals: DOAJ Articles Antarctic The Antarctic Geoscientific Model Development 13 9 4595 4637 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Geology QE1-996.5 |
spellingShingle |
Geology QE1-996.5 E. P. Chassignet S. G. Yeager B. Fox-Kemper A. Bozec F. Castruccio G. Danabasoglu C. Horvat W. M. Kim N. Koldunov Y. Li P. Lin H. Liu D. V. Sein D. Sidorenko Q. Wang X. Xu Impact of horizontal resolution on global ocean–sea ice model simulations based on the experimental protocols of the Ocean Model Intercomparison Project phase 2 (OMIP-2) |
topic_facet |
Geology QE1-996.5 |
description |
This paper presents global comparisons of fundamental global climate variables from a suite of four pairs of matched low- and high-resolution ocean and sea ice simulations that are obtained following the OMIP-2 protocol (Griffies et al., 2016) and integrated for one cycle (1958–2018) of the JRA55-do atmospheric state and runoff dataset (Tsujino et al., 2018). Our goal is to assess the robustness of climate-relevant improvements in ocean simulations (mean and variability) associated with moving from coarse ( ∼ 1 ∘ ) to eddy-resolving ( ∼ 0.1 ∘ ) horizontal resolutions. The models are diverse in their numerics and parameterizations, but each low-resolution and high-resolution pair of models is matched so as to isolate, to the extent possible, the effects of horizontal resolution. A variety of observational datasets are used to assess the fidelity of simulated temperature and salinity, sea surface height, kinetic energy, heat and volume transports, and sea ice distribution. This paper provides a crucial benchmark for future studies comparing and improving different schemes in any of the models used in this study or similar ones. The biases in the low-resolution simulations are familiar, and their gross features – position, strength, and variability of western boundary currents, equatorial currents, and the Antarctic Circumpolar Current – are significantly improved in the high-resolution models. However, despite the fact that the high-resolution models “resolve” most of these features, the improvements in temperature and salinity are inconsistent among the different model families, and some regions show increased bias over their low-resolution counterparts. Greatly enhanced horizontal resolution does not deliver unambiguous bias improvement in all regions for all models. |
format |
Article in Journal/Newspaper |
author |
E. P. Chassignet S. G. Yeager B. Fox-Kemper A. Bozec F. Castruccio G. Danabasoglu C. Horvat W. M. Kim N. Koldunov Y. Li P. Lin H. Liu D. V. Sein D. Sidorenko Q. Wang X. Xu |
author_facet |
E. P. Chassignet S. G. Yeager B. Fox-Kemper A. Bozec F. Castruccio G. Danabasoglu C. Horvat W. M. Kim N. Koldunov Y. Li P. Lin H. Liu D. V. Sein D. Sidorenko Q. Wang X. Xu |
author_sort |
E. P. Chassignet |
title |
Impact of horizontal resolution on global ocean–sea ice model simulations based on the experimental protocols of the Ocean Model Intercomparison Project phase 2 (OMIP-2) |
title_short |
Impact of horizontal resolution on global ocean–sea ice model simulations based on the experimental protocols of the Ocean Model Intercomparison Project phase 2 (OMIP-2) |
title_full |
Impact of horizontal resolution on global ocean–sea ice model simulations based on the experimental protocols of the Ocean Model Intercomparison Project phase 2 (OMIP-2) |
title_fullStr |
Impact of horizontal resolution on global ocean–sea ice model simulations based on the experimental protocols of the Ocean Model Intercomparison Project phase 2 (OMIP-2) |
title_full_unstemmed |
Impact of horizontal resolution on global ocean–sea ice model simulations based on the experimental protocols of the Ocean Model Intercomparison Project phase 2 (OMIP-2) |
title_sort |
impact of horizontal resolution on global ocean–sea ice model simulations based on the experimental protocols of the ocean model intercomparison project phase 2 (omip-2) |
publisher |
Copernicus Publications |
publishDate |
2020 |
url |
https://doi.org/10.5194/gmd-13-4595-2020 https://doaj.org/article/af6dffa94c234a028f56143f00a8f329 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Sea ice |
genre_facet |
Antarc* Antarctic Sea ice |
op_source |
Geoscientific Model Development, Vol 13, Pp 4595-4637 (2020) |
op_relation |
https://gmd.copernicus.org/articles/13/4595/2020/gmd-13-4595-2020.pdf https://doaj.org/toc/1991-959X https://doaj.org/toc/1991-9603 doi:10.5194/gmd-13-4595-2020 1991-959X 1991-9603 https://doaj.org/article/af6dffa94c234a028f56143f00a8f329 |
op_doi |
https://doi.org/10.5194/gmd-13-4595-2020 |
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Geoscientific Model Development |
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13 |
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9 |
container_start_page |
4595 |
op_container_end_page |
4637 |
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