Evaluation of the CMCC global eddying ocean model for the Ocean Model Intercomparison Project (OMIP2)
This paper describes the global eddying ocean-sea ice simulation produced at the Euro-Mediterranean Center on Climate Change (CMCC) obtained following the experimental design of the Ocean Model Intercomparison Project phase 2 (OMIP2). The eddy-rich model is based on the NEMOv3.6 framework, with a gl...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00065542 2023-05-15T18:18:08+02:00 Evaluation of the CMCC global eddying ocean model for the Ocean Model Intercomparison Project (OMIP2) Iovino, Doroteaciro Fogli, Pier Giuseppe Masina, Simona 2023-03 electronic https://doi.org/10.5194/egusphere-2023-469 https://noa.gwlb.de/receive/cop_mods_00065542 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00064062/egusphere-2023-469.pdf https://egusphere.copernicus.org/preprints/2023/egusphere-2023-469/egusphere-2023-469.pdf eng eng Copernicus Publications https://doi.org/10.5194/egusphere-2023-469 https://noa.gwlb.de/receive/cop_mods_00065542 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00064062/egusphere-2023-469.pdf https://egusphere.copernicus.org/preprints/2023/egusphere-2023-469/egusphere-2023-469.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2023 ftnonlinearchiv https://doi.org/10.5194/egusphere-2023-469 2023-03-26T23:15:38Z This paper describes the global eddying ocean-sea ice simulation produced at the Euro-Mediterranean Center on Climate Change (CMCC) obtained following the experimental design of the Ocean Model Intercomparison Project phase 2 (OMIP2). The eddy-rich model is based on the NEMOv3.6 framework, with a global horizontal resolution of 1/16° and 98 vertical levels, and was originally designed for an operational short-term ocean forecasting system. Here, it is driven by one multi-decadal cycle of the prescribed JRA55-do atmospheric reanalysis and runoff dataset in order to perform a long-term benchmarking experiment. To access the accuracy of simulated 3D ocean fields, and highlight the relative benefits of mesoscale activities, the GLOB16 performances are evaluated via a selection of key climate metrics against observational datasets and two other NEMO configurations at lower resolutions: an eddy-permitting resolution (ORCA025) and a non-eddying resolution (ORCA1) designed to form the ocean-sea ice component of the fully coupled CMCC climate model. The well-known biases in the low-resolution simulations are significantly improved in the high-resolution model. The evolution and spatial pattern of large-scale features (such as sea surface temperature biases and winter mixed layer structure) in GLOB16 are generally better reproduced, and the large-scale circulation is remarkably improved compared to the low-resolution oceans. We find that eddying resolution is an advantage in resolving the structure of western boundary currents, the overturning cells, and flow through key passages. GLOB16 might be an appropriate tool for ocean climate modeling effort, even though the benefit of eddying resolution does not provide unambiguous advances for all ocean variables in all regions. Article in Journal/Newspaper Sea ice Niedersächsisches Online-Archiv NOA |
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Niedersächsisches Online-Archiv NOA |
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ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
spellingShingle |
article Verlagsveröffentlichung Iovino, Doroteaciro Fogli, Pier Giuseppe Masina, Simona Evaluation of the CMCC global eddying ocean model for the Ocean Model Intercomparison Project (OMIP2) |
topic_facet |
article Verlagsveröffentlichung |
description |
This paper describes the global eddying ocean-sea ice simulation produced at the Euro-Mediterranean Center on Climate Change (CMCC) obtained following the experimental design of the Ocean Model Intercomparison Project phase 2 (OMIP2). The eddy-rich model is based on the NEMOv3.6 framework, with a global horizontal resolution of 1/16° and 98 vertical levels, and was originally designed for an operational short-term ocean forecasting system. Here, it is driven by one multi-decadal cycle of the prescribed JRA55-do atmospheric reanalysis and runoff dataset in order to perform a long-term benchmarking experiment. To access the accuracy of simulated 3D ocean fields, and highlight the relative benefits of mesoscale activities, the GLOB16 performances are evaluated via a selection of key climate metrics against observational datasets and two other NEMO configurations at lower resolutions: an eddy-permitting resolution (ORCA025) and a non-eddying resolution (ORCA1) designed to form the ocean-sea ice component of the fully coupled CMCC climate model. The well-known biases in the low-resolution simulations are significantly improved in the high-resolution model. The evolution and spatial pattern of large-scale features (such as sea surface temperature biases and winter mixed layer structure) in GLOB16 are generally better reproduced, and the large-scale circulation is remarkably improved compared to the low-resolution oceans. We find that eddying resolution is an advantage in resolving the structure of western boundary currents, the overturning cells, and flow through key passages. GLOB16 might be an appropriate tool for ocean climate modeling effort, even though the benefit of eddying resolution does not provide unambiguous advances for all ocean variables in all regions. |
format |
Article in Journal/Newspaper |
author |
Iovino, Doroteaciro Fogli, Pier Giuseppe Masina, Simona |
author_facet |
Iovino, Doroteaciro Fogli, Pier Giuseppe Masina, Simona |
author_sort |
Iovino, Doroteaciro |
title |
Evaluation of the CMCC global eddying ocean model for the Ocean Model Intercomparison Project (OMIP2) |
title_short |
Evaluation of the CMCC global eddying ocean model for the Ocean Model Intercomparison Project (OMIP2) |
title_full |
Evaluation of the CMCC global eddying ocean model for the Ocean Model Intercomparison Project (OMIP2) |
title_fullStr |
Evaluation of the CMCC global eddying ocean model for the Ocean Model Intercomparison Project (OMIP2) |
title_full_unstemmed |
Evaluation of the CMCC global eddying ocean model for the Ocean Model Intercomparison Project (OMIP2) |
title_sort |
evaluation of the cmcc global eddying ocean model for the ocean model intercomparison project (omip2) |
publisher |
Copernicus Publications |
publishDate |
2023 |
url |
https://doi.org/10.5194/egusphere-2023-469 https://noa.gwlb.de/receive/cop_mods_00065542 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00064062/egusphere-2023-469.pdf https://egusphere.copernicus.org/preprints/2023/egusphere-2023-469/egusphere-2023-469.pdf |
genre |
Sea ice |
genre_facet |
Sea ice |
op_relation |
https://doi.org/10.5194/egusphere-2023-469 https://noa.gwlb.de/receive/cop_mods_00065542 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00064062/egusphere-2023-469.pdf https://egusphere.copernicus.org/preprints/2023/egusphere-2023-469/egusphere-2023-469.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/egusphere-2023-469 |
_version_ |
1766194570927800320 |