Reduced marine phytoplankton sulphur emissions in the Southern Ocean during the past seven glacials
Marine biogenic sulphur affects Earth’s radiation budget and may be an indicator of primary productivity in the Southern Ocean, which is closely related to atmospheric CO(2) variability through the biological pump. Previous ice-core studies in Antarctica show little climate dependence of marine biog...
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ftpubmed:oai:pubmedcentral.nih.gov:6642193 2023-05-15T13:31:34+02:00 Reduced marine phytoplankton sulphur emissions in the Southern Ocean during the past seven glacials Goto-Azuma, K. Hirabayashi, M. Motoyama, H. Miyake, T. Kuramoto, T. Uemura, R. Igarashi, M. Iizuka, Y. Sakurai, T. Horikawa, S. Suzuki, K. Suzuki, T. Fujita, K. Kondo, Y. Hattori, S. Fujii, Y. 2019-07-19 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6642193/ http://www.ncbi.nlm.nih.gov/pubmed/31324761 https://doi.org/10.1038/s41467-019-11128-6 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6642193/ http://www.ncbi.nlm.nih.gov/pubmed/31324761 http://dx.doi.org/10.1038/s41467-019-11128-6 © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. CC-BY Article Text 2019 ftpubmed https://doi.org/10.1038/s41467-019-11128-6 2019-08-04T00:55:05Z Marine biogenic sulphur affects Earth’s radiation budget and may be an indicator of primary productivity in the Southern Ocean, which is closely related to atmospheric CO(2) variability through the biological pump. Previous ice-core studies in Antarctica show little climate dependence of marine biogenic sulphur emissions and hence primary productivity, contradictory to marine sediment records. Here we present new 720,000-year ice core records from Dome Fuji in East Antarctica and show that a large portion of non-sea-salt sulphate, which was traditionally used as a proxy for marine biogenic sulphate, likely originates from terrestrial dust during glacials. By correcting for this, we make a revised calculation of biogenic sulphate and find that its flux is reduced in glacial periods. Our results suggest reduced dimethylsulphide emissions in the Antarctic Zone of the Southern Ocean during glacials and provide new evidence for the coupling between climate and the Southern Ocean sulphur cycle. Text Antarc* Antarctic Antarctica East Antarctica ice core Southern Ocean PubMed Central (PMC) Antarctic Dome Fuji ENVELOPE(39.700,39.700,-77.317,-77.317) East Antarctica Southern Ocean The Antarctic Nature Communications 10 1 |
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Article Goto-Azuma, K. Hirabayashi, M. Motoyama, H. Miyake, T. Kuramoto, T. Uemura, R. Igarashi, M. Iizuka, Y. Sakurai, T. Horikawa, S. Suzuki, K. Suzuki, T. Fujita, K. Kondo, Y. Hattori, S. Fujii, Y. Reduced marine phytoplankton sulphur emissions in the Southern Ocean during the past seven glacials |
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description |
Marine biogenic sulphur affects Earth’s radiation budget and may be an indicator of primary productivity in the Southern Ocean, which is closely related to atmospheric CO(2) variability through the biological pump. Previous ice-core studies in Antarctica show little climate dependence of marine biogenic sulphur emissions and hence primary productivity, contradictory to marine sediment records. Here we present new 720,000-year ice core records from Dome Fuji in East Antarctica and show that a large portion of non-sea-salt sulphate, which was traditionally used as a proxy for marine biogenic sulphate, likely originates from terrestrial dust during glacials. By correcting for this, we make a revised calculation of biogenic sulphate and find that its flux is reduced in glacial periods. Our results suggest reduced dimethylsulphide emissions in the Antarctic Zone of the Southern Ocean during glacials and provide new evidence for the coupling between climate and the Southern Ocean sulphur cycle. |
format |
Text |
author |
Goto-Azuma, K. Hirabayashi, M. Motoyama, H. Miyake, T. Kuramoto, T. Uemura, R. Igarashi, M. Iizuka, Y. Sakurai, T. Horikawa, S. Suzuki, K. Suzuki, T. Fujita, K. Kondo, Y. Hattori, S. Fujii, Y. |
author_facet |
Goto-Azuma, K. Hirabayashi, M. Motoyama, H. Miyake, T. Kuramoto, T. Uemura, R. Igarashi, M. Iizuka, Y. Sakurai, T. Horikawa, S. Suzuki, K. Suzuki, T. Fujita, K. Kondo, Y. Hattori, S. Fujii, Y. |
author_sort |
Goto-Azuma, K. |
title |
Reduced marine phytoplankton sulphur emissions in the Southern Ocean during the past seven glacials |
title_short |
Reduced marine phytoplankton sulphur emissions in the Southern Ocean during the past seven glacials |
title_full |
Reduced marine phytoplankton sulphur emissions in the Southern Ocean during the past seven glacials |
title_fullStr |
Reduced marine phytoplankton sulphur emissions in the Southern Ocean during the past seven glacials |
title_full_unstemmed |
Reduced marine phytoplankton sulphur emissions in the Southern Ocean during the past seven glacials |
title_sort |
reduced marine phytoplankton sulphur emissions in the southern ocean during the past seven glacials |
publisher |
Nature Publishing Group UK |
publishDate |
2019 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6642193/ http://www.ncbi.nlm.nih.gov/pubmed/31324761 https://doi.org/10.1038/s41467-019-11128-6 |
long_lat |
ENVELOPE(39.700,39.700,-77.317,-77.317) |
geographic |
Antarctic Dome Fuji East Antarctica Southern Ocean The Antarctic |
geographic_facet |
Antarctic Dome Fuji East Antarctica Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Antarctica East Antarctica ice core Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica ice core Southern Ocean |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6642193/ http://www.ncbi.nlm.nih.gov/pubmed/31324761 http://dx.doi.org/10.1038/s41467-019-11128-6 |
op_rights |
© The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41467-019-11128-6 |
container_title |
Nature Communications |
container_volume |
10 |
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1 |
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1766018950508838912 |