Southern Ocean biological impacts on global ocean oxygen
Southern Ocean (SO) physical and biological processes are known to have a large impact on global biogeochemistry. However, the role that SO biology plays in determining ocean oxygen concentrations is not completely understood. These dynamics are investigated here by shutting off SO biology in two ma...
Published in: | Geophysical Research Letters |
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Online Access: | https://oceanrep.geomar.de/id/eprint/33285/ https://oceanrep.geomar.de/id/eprint/33285/1/grl54594.pdf https://oceanrep.geomar.de/id/eprint/33285/2/grl54594-sup-0001-supplementary.pdf https://doi.org/10.1002/2016GL069630 |
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ftoceanrep:oai:oceanrep.geomar.de:33285 2023-05-15T18:24:50+02:00 Southern Ocean biological impacts on global ocean oxygen Keller, David P. Kriest, Iris Koeve, Wolfgang Oschlies, Andreas 2016-06-28 text https://oceanrep.geomar.de/id/eprint/33285/ https://oceanrep.geomar.de/id/eprint/33285/1/grl54594.pdf https://oceanrep.geomar.de/id/eprint/33285/2/grl54594-sup-0001-supplementary.pdf https://doi.org/10.1002/2016GL069630 en eng AGU (American Geophysical Union) Wiley https://oceanrep.geomar.de/id/eprint/33285/1/grl54594.pdf https://oceanrep.geomar.de/id/eprint/33285/2/grl54594-sup-0001-supplementary.pdf Keller, D. P. , Kriest, I. , Koeve, W. and Oschlies, A. (2016) Southern Ocean biological impacts on global ocean oxygen. Open Access Geophysical Research Letters, 43 (12). pp. 6469-6477. DOI 10.1002/2016GL069630 <https://doi.org/10.1002/2016GL069630>. doi:10.1002/2016GL069630 info:eu-repo/semantics/openAccess Article PeerReviewed 2016 ftoceanrep https://doi.org/10.1002/2016GL069630 2023-04-07T15:26:30Z Southern Ocean (SO) physical and biological processes are known to have a large impact on global biogeochemistry. However, the role that SO biology plays in determining ocean oxygen concentrations is not completely understood. These dynamics are investigated here by shutting off SO biology in two marine biogeochemical models. The results suggest that SO biological processes reduce the ocean's oxygen content, mainly in the deep ocean, by 14 to 19%. However, since these processes also trap nutrients that would otherwise be transported northward to fuel productivity and subsequent organic matter export, consumption, and the accompanying oxygen consumption in midlatitude to low-latitude waters, SO biology helps to maintain higher oxygen concentrations in these subsurface waters. Thereby, SO biology can influence the size of the tropical oxygen minimum zones. As a result of ocean circulation the link between SO biological processes and remote oxygen changes operates on decadal to centennial time scales. Article in Journal/Newspaper Southern Ocean OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Southern Ocean Geophysical Research Letters 43 12 6469 6477 |
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Open Polar |
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OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
language |
English |
description |
Southern Ocean (SO) physical and biological processes are known to have a large impact on global biogeochemistry. However, the role that SO biology plays in determining ocean oxygen concentrations is not completely understood. These dynamics are investigated here by shutting off SO biology in two marine biogeochemical models. The results suggest that SO biological processes reduce the ocean's oxygen content, mainly in the deep ocean, by 14 to 19%. However, since these processes also trap nutrients that would otherwise be transported northward to fuel productivity and subsequent organic matter export, consumption, and the accompanying oxygen consumption in midlatitude to low-latitude waters, SO biology helps to maintain higher oxygen concentrations in these subsurface waters. Thereby, SO biology can influence the size of the tropical oxygen minimum zones. As a result of ocean circulation the link between SO biological processes and remote oxygen changes operates on decadal to centennial time scales. |
format |
Article in Journal/Newspaper |
author |
Keller, David P. Kriest, Iris Koeve, Wolfgang Oschlies, Andreas |
spellingShingle |
Keller, David P. Kriest, Iris Koeve, Wolfgang Oschlies, Andreas Southern Ocean biological impacts on global ocean oxygen |
author_facet |
Keller, David P. Kriest, Iris Koeve, Wolfgang Oschlies, Andreas |
author_sort |
Keller, David P. |
title |
Southern Ocean biological impacts on global ocean oxygen |
title_short |
Southern Ocean biological impacts on global ocean oxygen |
title_full |
Southern Ocean biological impacts on global ocean oxygen |
title_fullStr |
Southern Ocean biological impacts on global ocean oxygen |
title_full_unstemmed |
Southern Ocean biological impacts on global ocean oxygen |
title_sort |
southern ocean biological impacts on global ocean oxygen |
publisher |
AGU (American Geophysical Union) |
publishDate |
2016 |
url |
https://oceanrep.geomar.de/id/eprint/33285/ https://oceanrep.geomar.de/id/eprint/33285/1/grl54594.pdf https://oceanrep.geomar.de/id/eprint/33285/2/grl54594-sup-0001-supplementary.pdf https://doi.org/10.1002/2016GL069630 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
https://oceanrep.geomar.de/id/eprint/33285/1/grl54594.pdf https://oceanrep.geomar.de/id/eprint/33285/2/grl54594-sup-0001-supplementary.pdf Keller, D. P. , Kriest, I. , Koeve, W. and Oschlies, A. (2016) Southern Ocean biological impacts on global ocean oxygen. Open Access Geophysical Research Letters, 43 (12). pp. 6469-6477. DOI 10.1002/2016GL069630 <https://doi.org/10.1002/2016GL069630>. doi:10.1002/2016GL069630 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1002/2016GL069630 |
container_title |
Geophysical Research Letters |
container_volume |
43 |
container_issue |
12 |
container_start_page |
6469 |
op_container_end_page |
6477 |
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1766205782166077440 |