Assessing the importance of the Southern Ocean for natural atmospheric pCO(2) variations with a global biogeochemical general circulation model
A global biogeochemical ocean general circulation model (the HAMOCC model) is employed to study the efficiency of the Southern Ocean for enhancing or damping atmospheric pCO(2) variations due to (1) internal and (2) external perturbations of the carbon cycle. Internal perturbations are changes of oc...
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ftpubman:oai:pure.mpg.de:item_995476 2023-08-27T04:10:53+02:00 Assessing the importance of the Southern Ocean for natural atmospheric pCO(2) variations with a global biogeochemical general circulation model Heinze, C. 2002 application/pdf http://hdl.handle.net/11858/00-001M-0000-0012-02E3-A http://hdl.handle.net/21.11116/0000-000B-7BE6-8 eng eng info:eu-repo/semantics/altIdentifier/doi/10.1016/S0967-0645(02)00074-7 http://hdl.handle.net/11858/00-001M-0000-0012-02E3-A http://hdl.handle.net/21.11116/0000-000B-7BE6-8 Deep-Sea Research Part II-Topical Studies in Oceanography info:eu-repo/semantics/article 2002 ftpubman https://doi.org/10.1016/S0967-0645(02)00074-7 2023-08-02T01:23:14Z A global biogeochemical ocean general circulation model (the HAMOCC model) is employed to study the efficiency of the Southern Ocean for enhancing or damping atmospheric pCO(2) variations due to (1) internal and (2) external perturbations of the carbon cycle. Internal perturbations are changes of ocean parameters that govern the carbon cycle such as the velocity field, seawater temperature, the uptake rate of carbon and nutrients, and the rain ratio of C(POC):C(CaCO3) in biogenic particle export from the euphotic zone. The model results suggest that the Southern Ocean is more efficient for compensating external pCO(2) variations than the North Atlantic. Concerning most biogeochemical parameters associated with the "biological carbon pump" (POC pump and CaCO3 counter pump), the Southern Ocean enhances natural pCO(2) variations and dampens those for changes in sea-surface temperature or circulation. Therefore, modifications in the Southern Ocean biogenic carbon pumps may play a key role for natural variations of the atmospheric CO2 content. (C) 2002 Elsevier Science Ltd. All rights reserved. Article in Journal/Newspaper North Atlantic Southern Ocean Max Planck Society: MPG.PuRe Southern Ocean Deep Sea Research Part II: Topical Studies in Oceanography 49 16 3105 3125 |
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Max Planck Society: MPG.PuRe |
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English |
description |
A global biogeochemical ocean general circulation model (the HAMOCC model) is employed to study the efficiency of the Southern Ocean for enhancing or damping atmospheric pCO(2) variations due to (1) internal and (2) external perturbations of the carbon cycle. Internal perturbations are changes of ocean parameters that govern the carbon cycle such as the velocity field, seawater temperature, the uptake rate of carbon and nutrients, and the rain ratio of C(POC):C(CaCO3) in biogenic particle export from the euphotic zone. The model results suggest that the Southern Ocean is more efficient for compensating external pCO(2) variations than the North Atlantic. Concerning most biogeochemical parameters associated with the "biological carbon pump" (POC pump and CaCO3 counter pump), the Southern Ocean enhances natural pCO(2) variations and dampens those for changes in sea-surface temperature or circulation. Therefore, modifications in the Southern Ocean biogenic carbon pumps may play a key role for natural variations of the atmospheric CO2 content. (C) 2002 Elsevier Science Ltd. All rights reserved. |
format |
Article in Journal/Newspaper |
author |
Heinze, C. |
spellingShingle |
Heinze, C. Assessing the importance of the Southern Ocean for natural atmospheric pCO(2) variations with a global biogeochemical general circulation model |
author_facet |
Heinze, C. |
author_sort |
Heinze, C. |
title |
Assessing the importance of the Southern Ocean for natural atmospheric pCO(2) variations with a global biogeochemical general circulation model |
title_short |
Assessing the importance of the Southern Ocean for natural atmospheric pCO(2) variations with a global biogeochemical general circulation model |
title_full |
Assessing the importance of the Southern Ocean for natural atmospheric pCO(2) variations with a global biogeochemical general circulation model |
title_fullStr |
Assessing the importance of the Southern Ocean for natural atmospheric pCO(2) variations with a global biogeochemical general circulation model |
title_full_unstemmed |
Assessing the importance of the Southern Ocean for natural atmospheric pCO(2) variations with a global biogeochemical general circulation model |
title_sort |
assessing the importance of the southern ocean for natural atmospheric pco(2) variations with a global biogeochemical general circulation model |
publishDate |
2002 |
url |
http://hdl.handle.net/11858/00-001M-0000-0012-02E3-A http://hdl.handle.net/21.11116/0000-000B-7BE6-8 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
North Atlantic Southern Ocean |
genre_facet |
North Atlantic Southern Ocean |
op_source |
Deep-Sea Research Part II-Topical Studies in Oceanography |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/S0967-0645(02)00074-7 http://hdl.handle.net/11858/00-001M-0000-0012-02E3-A http://hdl.handle.net/21.11116/0000-000B-7BE6-8 |
op_doi |
https://doi.org/10.1016/S0967-0645(02)00074-7 |
container_title |
Deep Sea Research Part II: Topical Studies in Oceanography |
container_volume |
49 |
container_issue |
16 |
container_start_page |
3105 |
op_container_end_page |
3125 |
_version_ |
1775353264537075712 |