dc.contributor.author |
Nicholson, Sarah-Anne
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|
dc.contributor.author |
Whitt, DB
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|
dc.contributor.author |
Fer, I
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|
dc.contributor.author |
Du Plessis, Marcel
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|
dc.contributor.author |
Lebéhot, Alice D
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|
dc.contributor.author |
Swart, S
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|
dc.contributor.author |
Sutton, AJ
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dc.contributor.author |
Monteiro, Pedro MS
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|
dc.date.accessioned |
2023-04-04T10:03:22Z |
|
dc.date.available |
2023-04-04T10:03:22Z |
|
dc.date.issued |
2022-01 |
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dc.identifier.citation |
Nicholson, S., Whitt, D., Fer, I., Du Plessis, M., Lebéhot, A.D., Swart, S., Sutton, A. & Monteiro, P.M. et al. 2022. Storms drive outgassing of CO2 in the subpolar Southern Ocean. <i>Nature communications, 13(158).</i> http://hdl.handle.net/10204/12712 |
en_ZA |
dc.identifier.issn |
2041-1723 |
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dc.identifier.uri |
https://doi.org/10.1038/s41467-021-27780-w
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|
dc.identifier.uri |
http://hdl.handle.net/10204/12712
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|
dc.description.abstract |
The subpolar Southern Ocean is a critical region where CO2 outgassing influences the global mean air-sea CO2 flux (FCO2). However, the processes controlling the outgassing remain elusive. We show, using a multi-glider dataset combining FCO2 and ocean turbulence, that the air-sea gradient of CO2 ( pCO2) is modulated by synoptic storm-driven ocean variability (20 µatm, 1–10 days) through two processes. Ekman transport explains 60% of the variability, and entrainment drives strong episodic CO2 outgassing events of 2–4 mol m-2 yr-1 . Extrapolation across the subpolar Southern Ocean using a process model shows how ocean fronts spatially modulate synoptic variability in pCO2 (6 µatm2 average) and how spatial variations in stratification influence synoptic entrainment of deeper carbon into the mixed layer (3.5 mol m-2 yr-1 average). These results not only constrain aliased-driven uncertainties in FCO2 but also the effects of synoptic variability on slower seasonal or longer ocean physicscarbon dynamics. |
en_US |
dc.format |
Fulltext |
en_US |
dc.language.iso |
en |
en_US |
dc.relation.uri |
https://www.nature.com/articles/s41467-021-27780-w |
en_US |
dc.source |
Nature communications, 13(158) |
en_US |
dc.subject |
Carbon dioxide |
en_US |
dc.subject |
CO2 |
en_US |
dc.subject |
Southern Ocean |
en_US |
dc.subject |
Storms drive |
en_US |
dc.title |
Storms drive outgassing of CO2 in the subpolar Southern Ocean |
en_US |
dc.type |
Article |
en_US |
dc.description.pages |
12pp |
en_US |
dc.description.note |
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/. © The Author(s) 2022 |
en_US |
dc.description.cluster |
Smart Places |
en_US |
dc.description.impactarea |
Ocean Systems and Climate |
en_US |
dc.identifier.apacitation |
Nicholson, S., Whitt, D., Fer, I., Du Plessis, M., Lebéhot, A. D., Swart, S., ... Monteiro, P. M. (2022). Storms drive outgassing of CO2 in the subpolar Southern Ocean. <i>Nature communications, 13(158)</i>, http://hdl.handle.net/10204/12712 |
en_ZA |
dc.identifier.chicagocitation |
Nicholson, Sarah-Anne, DB Whitt, I Fer, Marcel Du Plessis, Alice D Lebéhot, S Swart, AJ Sutton, and Pedro MS Monteiro "Storms drive outgassing of CO2 in the subpolar Southern Ocean." <i>Nature communications, 13(158)</i> (2022) http://hdl.handle.net/10204/12712 |
en_ZA |
dc.identifier.vancouvercitation |
Nicholson S, Whitt D, Fer I, Du Plessis M, Lebéhot AD, Swart S, et al. Storms drive outgassing of CO2 in the subpolar Southern Ocean. Nature communications, 13(158). 2022; http://hdl.handle.net/10204/12712. |
en_ZA |
dc.identifier.ris |
TY - Article
AU - Nicholson, Sarah-Anne
AU - Whitt, DB
AU - Fer, I
AU - Du Plessis, Marcel
AU - Lebéhot, Alice D
AU - Swart, S
AU - Sutton, AJ
AU - Monteiro, Pedro MS
AB - The subpolar Southern Ocean is a critical region where CO2 outgassing influences the global mean air-sea CO2 flux (FCO2). However, the processes controlling the outgassing remain elusive. We show, using a multi-glider dataset combining FCO2 and ocean turbulence, that the air-sea gradient of CO2 ( pCO2) is modulated by synoptic storm-driven ocean variability (20 µatm, 1–10 days) through two processes. Ekman transport explains 60% of the variability, and entrainment drives strong episodic CO2 outgassing events of 2–4 mol m-2 yr-1 . Extrapolation across the subpolar Southern Ocean using a process model shows how ocean fronts spatially modulate synoptic variability in pCO2 (6 µatm2 average) and how spatial variations in stratification influence synoptic entrainment of deeper carbon into the mixed layer (3.5 mol m-2 yr-1 average). These results not only constrain aliased-driven uncertainties in FCO2 but also the effects of synoptic variability on slower seasonal or longer ocean physicscarbon dynamics.
DA - 2022-01
DB - ResearchSpace
DP - CSIR
J1 - Nature communications, 13(158)
KW - Carbon dioxide
KW - CO2
KW - Southern Ocean
KW - Storms drive
LK - https://researchspace.csir.co.za
PY - 2022
SM - 2041-1723
T1 - Storms drive outgassing of CO2 in the subpolar Southern Ocean
TI - Storms drive outgassing of CO2 in the subpolar Southern Ocean
UR - http://hdl.handle.net/10204/12712
ER -
|
en_ZA |
dc.identifier.worklist |
25494 |
en_US |