Ocean biogeochemistry in the coupled ocean–sea ice–biogeochemistry model FESOM2.1–REcoM3
The cycling of carbon in the oceans is affected by feedbacks driven by changes in climate and atmospheric CO2. Understanding these feedbacks is therefore an important prerequisite for projecting future climate. Marine biogeochemistry models are a useful tool but, as with any model, are a simplificat...
Published in: | Geoscientific Model Development |
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Copernicus GmbH
2023
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Online Access: | https://epic.awi.de/id/eprint/57944/ https://epic.awi.de/id/eprint/57944/1/Guerses%20et%20al.%20-%202023%20-%20Ocean%20biogeochemistry%20in%20the%20coupled%20ocean-sea%20ice.pdf https://doi.org/10.5194/gmd-16-4883-2023 https://hdl.handle.net/10013/epic.5df558bb-dce5-44d1-b6d6-b0cbd3235d7d |
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ftawi:oai:epic.awi.de:57944 2023-10-09T21:55:51+02:00 Ocean biogeochemistry in the coupled ocean–sea ice–biogeochemistry model FESOM2.1–REcoM3 Gürses, Özgür Oziel, Laurent Karakuş, Onur Sidorenko, Dmitry Völker, Christoph Ye, Ying Zeising, Moritz Butzin, Martin Hauck, Judith 2023-08-30 application/pdf https://epic.awi.de/id/eprint/57944/ https://epic.awi.de/id/eprint/57944/1/Guerses%20et%20al.%20-%202023%20-%20Ocean%20biogeochemistry%20in%20the%20coupled%20ocean-sea%20ice.pdf https://doi.org/10.5194/gmd-16-4883-2023 https://hdl.handle.net/10013/epic.5df558bb-dce5-44d1-b6d6-b0cbd3235d7d unknown Copernicus GmbH https://epic.awi.de/id/eprint/57944/1/Guerses%20et%20al.%20-%202023%20-%20Ocean%20biogeochemistry%20in%20the%20coupled%20ocean-sea%20ice.pdf Gürses, Ö. orcid:0000-0002-0646-5760 , Oziel, L. , Karakuş, O. , Sidorenko, D. , Völker, C. , Ye, Y. , Zeising, M. orcid:0000-0002-9167-3117 , Butzin, M. and Hauck, J. orcid:0000-0003-4723-9652 (2023) Ocean biogeochemistry in the coupled ocean–sea ice–biogeochemistry model FESOM2.1–REcoM3 , Geoscientific Model Development, 16 (16), pp. 4883-4936 . doi:10.5194/gmd-16-4883-2023 <https://doi.org/10.5194/gmd-16-4883-2023> , hdl:10013/epic.5df558bb-dce5-44d1-b6d6-b0cbd3235d7d EPIC3Geoscientific Model Development, Copernicus GmbH, 16(16), pp. 4883-4936, ISSN: 1991-9603 Article isiRev 2023 ftawi https://doi.org/10.5194/gmd-16-4883-2023 2023-09-10T23:22:09Z The cycling of carbon in the oceans is affected by feedbacks driven by changes in climate and atmospheric CO2. Understanding these feedbacks is therefore an important prerequisite for projecting future climate. Marine biogeochemistry models are a useful tool but, as with any model, are a simplification and need to be continually improved. In this study, we coupled the Finite-volumE Sea ice–Ocean Model (FESOM2.1) to the Regulated Ecosystem Model version 3 (REcoM3). FESOM2.1 is an update of the Finite-Element Sea ice–Ocean Model (FESOM1.4) and operates on unstructured meshes. Unlike standard structured-mesh ocean models, the mesh flexibility allows for a realistic representation of small-scale dynamics in key regions at an affordable computational cost. Compared to the previous coupled model version of FESOM1.4–REcoM2, the model FESOM2.1–REcoM3 utilizes a new dynamical core, based on a finite-volume discretization instead of finite elements, and retains central parts of the biogeochemistry model. As a new feature, carbonate chemistry, including water vapour correction, is computed by mocsy 2.0. Moreover, REcoM3 has an extended food web that includes macrozooplankton and fast-sinking detritus. Dissolved oxygen is also added as a new tracer. In this study, we assess the ocean and biogeochemical state simulated with FESOM2.1–REcoM3 in a global set-up at relatively low spatial resolution forced with JRA55-do (Tsujino et al., 2018) atmospheric reanalysis. The focus is on the recent period (1958–2021) to assess how well the model can be used for present-day and future climate change scenarios on decadal to centennial timescales. A bias in the global ocean–atmosphere preindustrial CO2 flux present in the previous model version (FESOM1.4–REcoM2) could be significantly reduced. In addition, the computational efficiency is 2–3 times higher than that of FESOM1.4–REcoM2. Overall, it is found that FESOM2.1–REcoM3 is a skilful tool for ocean biogeochemical modelling applications. Article in Journal/Newspaper Sea ice Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Geoscientific Model Development 16 16 4883 4936 |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
The cycling of carbon in the oceans is affected by feedbacks driven by changes in climate and atmospheric CO2. Understanding these feedbacks is therefore an important prerequisite for projecting future climate. Marine biogeochemistry models are a useful tool but, as with any model, are a simplification and need to be continually improved. In this study, we coupled the Finite-volumE Sea ice–Ocean Model (FESOM2.1) to the Regulated Ecosystem Model version 3 (REcoM3). FESOM2.1 is an update of the Finite-Element Sea ice–Ocean Model (FESOM1.4) and operates on unstructured meshes. Unlike standard structured-mesh ocean models, the mesh flexibility allows for a realistic representation of small-scale dynamics in key regions at an affordable computational cost. Compared to the previous coupled model version of FESOM1.4–REcoM2, the model FESOM2.1–REcoM3 utilizes a new dynamical core, based on a finite-volume discretization instead of finite elements, and retains central parts of the biogeochemistry model. As a new feature, carbonate chemistry, including water vapour correction, is computed by mocsy 2.0. Moreover, REcoM3 has an extended food web that includes macrozooplankton and fast-sinking detritus. Dissolved oxygen is also added as a new tracer. In this study, we assess the ocean and biogeochemical state simulated with FESOM2.1–REcoM3 in a global set-up at relatively low spatial resolution forced with JRA55-do (Tsujino et al., 2018) atmospheric reanalysis. The focus is on the recent period (1958–2021) to assess how well the model can be used for present-day and future climate change scenarios on decadal to centennial timescales. A bias in the global ocean–atmosphere preindustrial CO2 flux present in the previous model version (FESOM1.4–REcoM2) could be significantly reduced. In addition, the computational efficiency is 2–3 times higher than that of FESOM1.4–REcoM2. Overall, it is found that FESOM2.1–REcoM3 is a skilful tool for ocean biogeochemical modelling applications. |
format |
Article in Journal/Newspaper |
author |
Gürses, Özgür Oziel, Laurent Karakuş, Onur Sidorenko, Dmitry Völker, Christoph Ye, Ying Zeising, Moritz Butzin, Martin Hauck, Judith |
spellingShingle |
Gürses, Özgür Oziel, Laurent Karakuş, Onur Sidorenko, Dmitry Völker, Christoph Ye, Ying Zeising, Moritz Butzin, Martin Hauck, Judith Ocean biogeochemistry in the coupled ocean–sea ice–biogeochemistry model FESOM2.1–REcoM3 |
author_facet |
Gürses, Özgür Oziel, Laurent Karakuş, Onur Sidorenko, Dmitry Völker, Christoph Ye, Ying Zeising, Moritz Butzin, Martin Hauck, Judith |
author_sort |
Gürses, Özgür |
title |
Ocean biogeochemistry in the coupled ocean–sea ice–biogeochemistry model FESOM2.1–REcoM3 |
title_short |
Ocean biogeochemistry in the coupled ocean–sea ice–biogeochemistry model FESOM2.1–REcoM3 |
title_full |
Ocean biogeochemistry in the coupled ocean–sea ice–biogeochemistry model FESOM2.1–REcoM3 |
title_fullStr |
Ocean biogeochemistry in the coupled ocean–sea ice–biogeochemistry model FESOM2.1–REcoM3 |
title_full_unstemmed |
Ocean biogeochemistry in the coupled ocean–sea ice–biogeochemistry model FESOM2.1–REcoM3 |
title_sort |
ocean biogeochemistry in the coupled ocean–sea ice–biogeochemistry model fesom2.1–recom3 |
publisher |
Copernicus GmbH |
publishDate |
2023 |
url |
https://epic.awi.de/id/eprint/57944/ https://epic.awi.de/id/eprint/57944/1/Guerses%20et%20al.%20-%202023%20-%20Ocean%20biogeochemistry%20in%20the%20coupled%20ocean-sea%20ice.pdf https://doi.org/10.5194/gmd-16-4883-2023 https://hdl.handle.net/10013/epic.5df558bb-dce5-44d1-b6d6-b0cbd3235d7d |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
EPIC3Geoscientific Model Development, Copernicus GmbH, 16(16), pp. 4883-4936, ISSN: 1991-9603 |
op_relation |
https://epic.awi.de/id/eprint/57944/1/Guerses%20et%20al.%20-%202023%20-%20Ocean%20biogeochemistry%20in%20the%20coupled%20ocean-sea%20ice.pdf Gürses, Ö. orcid:0000-0002-0646-5760 , Oziel, L. , Karakuş, O. , Sidorenko, D. , Völker, C. , Ye, Y. , Zeising, M. orcid:0000-0002-9167-3117 , Butzin, M. and Hauck, J. orcid:0000-0003-4723-9652 (2023) Ocean biogeochemistry in the coupled ocean–sea ice–biogeochemistry model FESOM2.1–REcoM3 , Geoscientific Model Development, 16 (16), pp. 4883-4936 . doi:10.5194/gmd-16-4883-2023 <https://doi.org/10.5194/gmd-16-4883-2023> , hdl:10013/epic.5df558bb-dce5-44d1-b6d6-b0cbd3235d7d |
op_doi |
https://doi.org/10.5194/gmd-16-4883-2023 |
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Geoscientific Model Development |
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