Deglacial Subantarctic CO(2) outgassing driven by a weakened solubility pump

The Subantarctic Southern Ocean has long been thought to be an important contributor to increases in atmospheric carbon dioxide partial pressure (pCO(2)) during glacial-interglacial transitions. Extensive studies suggest that a weakened biological pump, a process associated with nutrient utilization...

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Published in:Nature Communications
Main Authors: Dai, Yuhao, Yu, Jimin, Ren, Haojia, Ji, Xuan
Format: Text
Language:English
Published: Nature Publishing Group UK 2022
Subjects:
Article
Southern Ocean
Online Access:http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9440897/
http://www.ncbi.nlm.nih.gov/pubmed/36057689
https://doi.org/10.1038/s41467-022-32895-9
id ftpubmed:oai:pubmedcentral.nih.gov:9440897
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spelling ftpubmed:oai:pubmedcentral.nih.gov:9440897 2023-05-15T18:24:53+02:00 Deglacial Subantarctic CO(2) outgassing driven by a weakened solubility pump Dai, Yuhao Yu, Jimin Ren, Haojia Ji, Xuan 2022-09-03 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9440897/ http://www.ncbi.nlm.nih.gov/pubmed/36057689 https://doi.org/10.1038/s41467-022-32895-9 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9440897/ http://www.ncbi.nlm.nih.gov/pubmed/36057689 http://dx.doi.org/10.1038/s41467-022-32895-9 © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/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/ (https://creativecommons.org/licenses/by/4.0/) . CC-BY Nat Commun Article Text 2022 ftpubmed https://doi.org/10.1038/s41467-022-32895-9 2022-09-11T00:39:07Z The Subantarctic Southern Ocean has long been thought to be an important contributor to increases in atmospheric carbon dioxide partial pressure (pCO(2)) during glacial-interglacial transitions. Extensive studies suggest that a weakened biological pump, a process associated with nutrient utilization efficiency, drove up surface-water pCO(2) in this region during deglaciations. By contrast, regional influences of the solubility pump, a process mainly linked to temperature variations, have been largely overlooked. Here, we evaluate relative roles of the biological and solubility pumps in determining surface-water pCO(2) variabilities in the Subantarctic Southern Ocean during the last deglaciation, based on paired reconstructions of surface-water pCO(2), temperature, and nutrient utilization efficiency. We show that compared to the biological pump, the solubility pump imposed a strong impact on deglacial Subantarctic surface-water pCO(2) variabilities. Our findings therefore reveal a previously underappreciated role of the solubility pump in modulating deglacial Subantarctic CO(2) release and possibly past atmospheric pCO(2) fluctuations. Text Southern Ocean PubMed Central (PMC) Southern Ocean Nature Communications 13 1
institution Open Polar
collection PubMed Central (PMC)
op_collection_id ftpubmed
language English
topic Article
spellingShingle Article
Dai, Yuhao
Yu, Jimin
Ren, Haojia
Ji, Xuan
Deglacial Subantarctic CO(2) outgassing driven by a weakened solubility pump
topic_facet Article
description The Subantarctic Southern Ocean has long been thought to be an important contributor to increases in atmospheric carbon dioxide partial pressure (pCO(2)) during glacial-interglacial transitions. Extensive studies suggest that a weakened biological pump, a process associated with nutrient utilization efficiency, drove up surface-water pCO(2) in this region during deglaciations. By contrast, regional influences of the solubility pump, a process mainly linked to temperature variations, have been largely overlooked. Here, we evaluate relative roles of the biological and solubility pumps in determining surface-water pCO(2) variabilities in the Subantarctic Southern Ocean during the last deglaciation, based on paired reconstructions of surface-water pCO(2), temperature, and nutrient utilization efficiency. We show that compared to the biological pump, the solubility pump imposed a strong impact on deglacial Subantarctic surface-water pCO(2) variabilities. Our findings therefore reveal a previously underappreciated role of the solubility pump in modulating deglacial Subantarctic CO(2) release and possibly past atmospheric pCO(2) fluctuations.
format Text
author Dai, Yuhao
Yu, Jimin
Ren, Haojia
Ji, Xuan
author_facet Dai, Yuhao
Yu, Jimin
Ren, Haojia
Ji, Xuan
author_sort Dai, Yuhao
title Deglacial Subantarctic CO(2) outgassing driven by a weakened solubility pump
title_short Deglacial Subantarctic CO(2) outgassing driven by a weakened solubility pump
title_full Deglacial Subantarctic CO(2) outgassing driven by a weakened solubility pump
title_fullStr Deglacial Subantarctic CO(2) outgassing driven by a weakened solubility pump
title_full_unstemmed Deglacial Subantarctic CO(2) outgassing driven by a weakened solubility pump
title_sort deglacial subantarctic co(2) outgassing driven by a weakened solubility pump
publisher Nature Publishing Group UK
publishDate 2022
url http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9440897/
http://www.ncbi.nlm.nih.gov/pubmed/36057689
https://doi.org/10.1038/s41467-022-32895-9
geographic Southern Ocean
geographic_facet Southern Ocean
genre Southern Ocean
genre_facet Southern Ocean
op_source Nat Commun
op_relation http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9440897/
http://www.ncbi.nlm.nih.gov/pubmed/36057689
http://dx.doi.org/10.1038/s41467-022-32895-9
op_rights © The Author(s) 2022
https://creativecommons.org/licenses/by/4.0/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/ (https://creativecommons.org/licenses/by/4.0/) .
op_rightsnorm CC-BY
op_doi https://doi.org/10.1038/s41467-022-32895-9
container_title Nature Communications
container_volume 13
container_issue 1
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