Deglacial Subantarctic CO2 outgassing driven by a weakened solubility pump
The Subantarctic Southern Ocean has long been thought to be an importantcontributor to increases in atmospheric carbon dioxide partial pressure(pCO2) during glacial-interglacial transitions. Extensive studies suggest that aweakened biological pump, a process associated with nutrient utilizationeffic...
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ftulundlup:oai:lup.lub.lu.se:f7e42bdf-cc0e-405f-b7f5-f029eab92f75 2023-05-15T18:24:49+02:00 Deglacial Subantarctic CO2 outgassing driven by a weakened solubility pump Dai, Yuhao Yu, Jimin Ren, Haojia Ji, Xuan 2022-09-03 https://lup.lub.lu.se/record/f7e42bdf-cc0e-405f-b7f5-f029eab92f75 https://doi.org/10.1038/s41467-022-32895-9 eng eng Nature Publishing Group https://lup.lub.lu.se/record/f7e42bdf-cc0e-405f-b7f5-f029eab92f75 http://dx.doi.org/10.1038/s41467-022-32895-9 scopus:85137167407 pmid:36057689 Nature Communications; 13(1), no 5193 (2022) ISSN: 2041-1723 Oceanography Hydrology Water Resources contributiontojournal/article info:eu-repo/semantics/article text 2022 ftulundlup https://doi.org/10.1038/s41467-022-32895-9 2023-02-01T23:38:29Z The Subantarctic Southern Ocean has long been thought to be an importantcontributor to increases in atmospheric carbon dioxide partial pressure(pCO2) during glacial-interglacial transitions. Extensive studies suggest that aweakened biological pump, a process associated with nutrient utilizationefficiency, drove up surface-water pCO2in this region during deglaciations. Bycontrast, regional influences of the solubility pump, a process mainly linked totemperature variations, have been largely overlooked. Here, we evaluaterelative roles of the biological and solubility pumps in determining surface-water pCO2variabilities in the Subantarctic Southern Ocean during the lastdeglaciation, based on paired reconstructions of surface-water pCO2,tem-perature, and nutrient utilization efficiency. We show that compared to thebiological pump, the solubility pumpimposed a strong impact on deglacialSubantarctic surface-water pCO2variabilities. Ourfindings therefore reveal apreviously underappreciated role of the solubility pump in modulatingdeglacial Subantarctic CO2release and possibly past atmospheric pCO2fluctuations. Article in Journal/Newspaper Southern Ocean Lund University Publications (LUP) Southern Ocean Nature Communications 13 1 |
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Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Oceanography Hydrology Water Resources |
spellingShingle |
Oceanography Hydrology Water Resources Dai, Yuhao Yu, Jimin Ren, Haojia Ji, Xuan Deglacial Subantarctic CO2 outgassing driven by a weakened solubility pump |
topic_facet |
Oceanography Hydrology Water Resources |
description |
The Subantarctic Southern Ocean has long been thought to be an importantcontributor to increases in atmospheric carbon dioxide partial pressure(pCO2) during glacial-interglacial transitions. Extensive studies suggest that aweakened biological pump, a process associated with nutrient utilizationefficiency, drove up surface-water pCO2in this region during deglaciations. Bycontrast, regional influences of the solubility pump, a process mainly linked totemperature variations, have been largely overlooked. Here, we evaluaterelative roles of the biological and solubility pumps in determining surface-water pCO2variabilities in the Subantarctic Southern Ocean during the lastdeglaciation, based on paired reconstructions of surface-water pCO2,tem-perature, and nutrient utilization efficiency. We show that compared to thebiological pump, the solubility pumpimposed a strong impact on deglacialSubantarctic surface-water pCO2variabilities. Ourfindings therefore reveal apreviously underappreciated role of the solubility pump in modulatingdeglacial Subantarctic CO2release and possibly past atmospheric pCO2fluctuations. |
format |
Article in Journal/Newspaper |
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 CO2 outgassing driven by a weakened solubility pump |
title_short |
Deglacial Subantarctic CO2 outgassing driven by a weakened solubility pump |
title_full |
Deglacial Subantarctic CO2 outgassing driven by a weakened solubility pump |
title_fullStr |
Deglacial Subantarctic CO2 outgassing driven by a weakened solubility pump |
title_full_unstemmed |
Deglacial Subantarctic CO2 outgassing driven by a weakened solubility pump |
title_sort |
deglacial subantarctic co2 outgassing driven by a weakened solubility pump |
publisher |
Nature Publishing Group |
publishDate |
2022 |
url |
https://lup.lub.lu.se/record/f7e42bdf-cc0e-405f-b7f5-f029eab92f75 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 |
Nature Communications; 13(1), no 5193 (2022) ISSN: 2041-1723 |
op_relation |
https://lup.lub.lu.se/record/f7e42bdf-cc0e-405f-b7f5-f029eab92f75 http://dx.doi.org/10.1038/s41467-022-32895-9 scopus:85137167407 pmid:36057689 |
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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1766205761323532288 |