The GFDL Global Ocean and Sea Ice Model OM4.0: Model Description and Simulation Features
Abstract We document the configuration and emergent simulation features from the Geophysical Fluid Dynamics Laboratory (GFDL) OM4.0 ocean/sea ice model. OM4 serves as the ocean/sea ice component for the GFDL climate and Earth system models. It is also used for climate science research and is contrib...
Published in: | Journal of Advances in Modeling Earth Systems |
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American Geophysical Union (AGU)
2019
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ftdoajarticles:oai:doaj.org/article:06b133d1cee241e0ab5d972a60ce3fca 2023-05-15T18:16:53+02:00 The GFDL Global Ocean and Sea Ice Model OM4.0: Model Description and Simulation Features Alistair Adcroft Whit Anderson V. Balaji Chris Blanton Mitchell Bushuk Carolina O. Dufour John P. Dunne Stephen M. Griffies Robert Hallberg Matthew J. Harrison Isaac M. Held Malte F. Jansen Jasmin G. John John P. Krasting Amy R. Langenhorst Sonya Legg Zhi Liang Colleen McHugh Aparna Radhakrishnan Brandon G. Reichl Tony Rosati Bonita L. Samuels Andrew Shao Ronald Stouffer Michael Winton Andrew T. Wittenberg Baoqiang Xiang Niki Zadeh Rong Zhang 2019-10-01T00:00:00Z https://doi.org/10.1029/2019MS001726 https://doaj.org/article/06b133d1cee241e0ab5d972a60ce3fca EN eng American Geophysical Union (AGU) https://doi.org/10.1029/2019MS001726 https://doaj.org/toc/1942-2466 1942-2466 doi:10.1029/2019MS001726 https://doaj.org/article/06b133d1cee241e0ab5d972a60ce3fca Journal of Advances in Modeling Earth Systems, Vol 11, Iss 10, Pp 3167-3211 (2019) ocean circulation model CORE hybrid coordinates Physical geography GB3-5030 Oceanography GC1-1581 article 2019 ftdoajarticles https://doi.org/10.1029/2019MS001726 2022-12-31T07:00:55Z Abstract We document the configuration and emergent simulation features from the Geophysical Fluid Dynamics Laboratory (GFDL) OM4.0 ocean/sea ice model. OM4 serves as the ocean/sea ice component for the GFDL climate and Earth system models. It is also used for climate science research and is contributing to the Coupled Model Intercomparison Project version 6 Ocean Model Intercomparison Project. The ocean component of OM4 uses version 6 of the Modular Ocean Model and the sea ice component uses version 2 of the Sea Ice Simulator, which have identical horizontal grid layouts (Arakawa C‐grid). We follow the Coordinated Ocean‐sea ice Reference Experiments protocol to assess simulation quality across a broad suite of climate‐relevant features. We present results from two versions differing by horizontal grid spacing and physical parameterizations: OM4p5 has nominal 0.5° spacing and includes mesoscale eddy parameterizations and OM4p25 has nominal 0.25° spacing with no mesoscale eddy parameterization. Modular Ocean Model version 6 makes use of a vertical Lagrangian‐remap algorithm that enables general vertical coordinates. We show that use of a hybrid depth‐isopycnal coordinate reduces the middepth ocean warming drift commonly found in pure z* vertical coordinate ocean models. To test the need for the mesoscale eddy parameterization used in OM4p5, we examine the results from a simulation that removes the eddy parameterization. The water mass structure and model drift are physically degraded relative to OM4p5, thus supporting the key role for a mesoscale closure at this resolution. Article in Journal/Newspaper Sea ice Directory of Open Access Journals: DOAJ Articles Journal of Advances in Modeling Earth Systems 11 10 3167 3211 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
ocean circulation model CORE hybrid coordinates Physical geography GB3-5030 Oceanography GC1-1581 |
spellingShingle |
ocean circulation model CORE hybrid coordinates Physical geography GB3-5030 Oceanography GC1-1581 Alistair Adcroft Whit Anderson V. Balaji Chris Blanton Mitchell Bushuk Carolina O. Dufour John P. Dunne Stephen M. Griffies Robert Hallberg Matthew J. Harrison Isaac M. Held Malte F. Jansen Jasmin G. John John P. Krasting Amy R. Langenhorst Sonya Legg Zhi Liang Colleen McHugh Aparna Radhakrishnan Brandon G. Reichl Tony Rosati Bonita L. Samuels Andrew Shao Ronald Stouffer Michael Winton Andrew T. Wittenberg Baoqiang Xiang Niki Zadeh Rong Zhang The GFDL Global Ocean and Sea Ice Model OM4.0: Model Description and Simulation Features |
topic_facet |
ocean circulation model CORE hybrid coordinates Physical geography GB3-5030 Oceanography GC1-1581 |
description |
Abstract We document the configuration and emergent simulation features from the Geophysical Fluid Dynamics Laboratory (GFDL) OM4.0 ocean/sea ice model. OM4 serves as the ocean/sea ice component for the GFDL climate and Earth system models. It is also used for climate science research and is contributing to the Coupled Model Intercomparison Project version 6 Ocean Model Intercomparison Project. The ocean component of OM4 uses version 6 of the Modular Ocean Model and the sea ice component uses version 2 of the Sea Ice Simulator, which have identical horizontal grid layouts (Arakawa C‐grid). We follow the Coordinated Ocean‐sea ice Reference Experiments protocol to assess simulation quality across a broad suite of climate‐relevant features. We present results from two versions differing by horizontal grid spacing and physical parameterizations: OM4p5 has nominal 0.5° spacing and includes mesoscale eddy parameterizations and OM4p25 has nominal 0.25° spacing with no mesoscale eddy parameterization. Modular Ocean Model version 6 makes use of a vertical Lagrangian‐remap algorithm that enables general vertical coordinates. We show that use of a hybrid depth‐isopycnal coordinate reduces the middepth ocean warming drift commonly found in pure z* vertical coordinate ocean models. To test the need for the mesoscale eddy parameterization used in OM4p5, we examine the results from a simulation that removes the eddy parameterization. The water mass structure and model drift are physically degraded relative to OM4p5, thus supporting the key role for a mesoscale closure at this resolution. |
format |
Article in Journal/Newspaper |
author |
Alistair Adcroft Whit Anderson V. Balaji Chris Blanton Mitchell Bushuk Carolina O. Dufour John P. Dunne Stephen M. Griffies Robert Hallberg Matthew J. Harrison Isaac M. Held Malte F. Jansen Jasmin G. John John P. Krasting Amy R. Langenhorst Sonya Legg Zhi Liang Colleen McHugh Aparna Radhakrishnan Brandon G. Reichl Tony Rosati Bonita L. Samuels Andrew Shao Ronald Stouffer Michael Winton Andrew T. Wittenberg Baoqiang Xiang Niki Zadeh Rong Zhang |
author_facet |
Alistair Adcroft Whit Anderson V. Balaji Chris Blanton Mitchell Bushuk Carolina O. Dufour John P. Dunne Stephen M. Griffies Robert Hallberg Matthew J. Harrison Isaac M. Held Malte F. Jansen Jasmin G. John John P. Krasting Amy R. Langenhorst Sonya Legg Zhi Liang Colleen McHugh Aparna Radhakrishnan Brandon G. Reichl Tony Rosati Bonita L. Samuels Andrew Shao Ronald Stouffer Michael Winton Andrew T. Wittenberg Baoqiang Xiang Niki Zadeh Rong Zhang |
author_sort |
Alistair Adcroft |
title |
The GFDL Global Ocean and Sea Ice Model OM4.0: Model Description and Simulation Features |
title_short |
The GFDL Global Ocean and Sea Ice Model OM4.0: Model Description and Simulation Features |
title_full |
The GFDL Global Ocean and Sea Ice Model OM4.0: Model Description and Simulation Features |
title_fullStr |
The GFDL Global Ocean and Sea Ice Model OM4.0: Model Description and Simulation Features |
title_full_unstemmed |
The GFDL Global Ocean and Sea Ice Model OM4.0: Model Description and Simulation Features |
title_sort |
gfdl global ocean and sea ice model om4.0: model description and simulation features |
publisher |
American Geophysical Union (AGU) |
publishDate |
2019 |
url |
https://doi.org/10.1029/2019MS001726 https://doaj.org/article/06b133d1cee241e0ab5d972a60ce3fca |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
Journal of Advances in Modeling Earth Systems, Vol 11, Iss 10, Pp 3167-3211 (2019) |
op_relation |
https://doi.org/10.1029/2019MS001726 https://doaj.org/toc/1942-2466 1942-2466 doi:10.1029/2019MS001726 https://doaj.org/article/06b133d1cee241e0ab5d972a60ce3fca |
op_doi |
https://doi.org/10.1029/2019MS001726 |
container_title |
Journal of Advances in Modeling Earth Systems |
container_volume |
11 |
container_issue |
10 |
container_start_page |
3167 |
op_container_end_page |
3211 |
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1766190841333809152 |