Ocean biogeochemistry in the coupled ocean–sea ice–biogeochemistry model FESOM2.1–REcoM3
<p>The cycling of carbon in the oceans is affected by feedbacks driven by changes in climate and atmospheric <span class="inline-formula">CO<sub>2</sub></span>. Understanding these feedbacks is therefore an important prerequisite for projecting future climate....
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2023-08-01
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| Series: | Geoscientific Model Development |
| Online Access: | https://gmd.copernicus.org/articles/16/4883/2023/gmd-16-4883-2023.pdf |
| _version_ | 1797732743940931584 |
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| author | Ö. Gürses L. Oziel O. Karakuş D. Sidorenko C. Völker Y. Ye M. Zeising M. Butzin M. Butzin J. Hauck |
| author_facet | Ö. Gürses L. Oziel O. Karakuş D. Sidorenko C. Völker Y. Ye M. Zeising M. Butzin M. Butzin J. Hauck |
| author_sort | Ö. Gürses |
| collection | DOAJ |
| description | <p>The cycling of carbon in the oceans is affected by feedbacks driven by changes in climate and atmospheric <span class="inline-formula">CO<sub>2</sub></span>. 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 <span class="cit" id="xref_paren.1">(<a href="#bib1.bibx205">Tsujino et al.</a>, <a href="#bib1.bibx205">2018</a>)</span> 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 <span class="inline-formula">CO<sub>2</sub></span> 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.</p> |
| first_indexed | 2024-03-12T12:17:48Z |
| format | Article |
| id | doaj.art-b4a1e1fd8a634c39a4e2a852490f5b44 |
| institution | Directory Open Access Journal |
| issn | 1991-959X 1991-9603 |
| language | English |
| last_indexed | 2024-03-12T12:17:48Z |
| publishDate | 2023-08-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Geoscientific Model Development |
| spelling | doaj.art-b4a1e1fd8a634c39a4e2a852490f5b442023-08-30T08:14:10ZengCopernicus PublicationsGeoscientific Model Development1991-959X1991-96032023-08-01164883493610.5194/gmd-16-4883-2023Ocean biogeochemistry in the coupled ocean–sea ice–biogeochemistry model FESOM2.1–REcoM3Ö. Gürses0L. Oziel1O. Karakuş2D. Sidorenko3C. Völker4Y. Ye5M. Zeising6M. Butzin7M. Butzin8J. Hauck9Marine Biogeosciences, Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung, 27570 Bremerhaven, GermanyMarine Biogeosciences, Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung, 27570 Bremerhaven, GermanyMarine Biogeosciences, Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung, 27570 Bremerhaven, GermanyMarine Biogeosciences, Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung, 27570 Bremerhaven, GermanyMarine Biogeosciences, Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung, 27570 Bremerhaven, GermanyMarine Biogeosciences, Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung, 27570 Bremerhaven, GermanyMarine Biogeosciences, Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung, 27570 Bremerhaven, GermanyMarine Biogeosciences, Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung, 27570 Bremerhaven, GermanyMARUM – Center for Marine Environmental Sciences, University of Bremen, 28334 Bremen, GermanyMarine Biogeosciences, Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung, 27570 Bremerhaven, Germany<p>The cycling of carbon in the oceans is affected by feedbacks driven by changes in climate and atmospheric <span class="inline-formula">CO<sub>2</sub></span>. 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 <span class="cit" id="xref_paren.1">(<a href="#bib1.bibx205">Tsujino et al.</a>, <a href="#bib1.bibx205">2018</a>)</span> 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 <span class="inline-formula">CO<sub>2</sub></span> 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.</p>https://gmd.copernicus.org/articles/16/4883/2023/gmd-16-4883-2023.pdf |
| spellingShingle | Ö. Gürses L. Oziel O. Karakuş D. Sidorenko C. Völker Y. Ye M. Zeising M. Butzin M. Butzin J. Hauck Ocean biogeochemistry in the coupled ocean–sea ice–biogeochemistry model FESOM2.1–REcoM3 Geoscientific Model Development |
| title | 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_short | 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 |
| url | https://gmd.copernicus.org/articles/16/4883/2023/gmd-16-4883-2023.pdf |
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