Articles | Volume 20, issue 21
https://doi.org/10.5194/bg-20-4413-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-20-4413-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
06 Nov 2023
Research article |
| 06 Nov 2023
| 06 Nov 2023
Enhanced Southern Ocean CO2 outgassing as a result of stronger and poleward shifted southern hemispheric westerlies
Climate Change Research Centre, University of New South Wales, Sydney, NSW 2052, Australia
The Australian Centre for Excellence in Antarctic Science, University of New South Wales, Sydney, NSW 2052, Australia
Paul Spence
The Australian Centre for Excellence in Antarctic Science, University of New South Wales, Sydney, NSW 2052, Australia
Institute for Marine and Antarctic Studies and Australian Antarctic Program Partnership, University of Tasmania, Hobart, Australia
Andrew E. Kiss
Research School of Earth Sciences, Australian National University, Canberra, Australia
Australian Research Council Centre of Excellence for Climate Extremes, Canberra, Australia
Matthew A. Chamberlain
Institute for Marine and Antarctic Studies and Australian Antarctic Program Partnership, University of Tasmania, Hobart, Australia
CSIRO Oceans and Atmosphere, Hobart, Australia
Hakase Hayashida
Institute for Marine and Antarctic Studies and Australian Antarctic Program Partnership, University of Tasmania, Hobart, Australia
Application Laboratory, Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan
Matthew H. England
The Australian Centre for Excellence in Antarctic Science, University of New South Wales, Sydney, NSW 2052, Australia
Centre for Marine Science and Innovation (CMSI), University of New South Wales, Sydney, NSW 2052, Australia
Darryn Waugh
School of Mathematics and Statistics, University of New South Wales, Sydney, NSW 2052, Australia
Department of Earth and Planetary Sciences, John Hopkins University, Baltimore, USA
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Cited
13 citations as recorded by crossref.
- Inter-hemispheric climate linkages and monsoonal controls on the Arabian Sea surface temperatures H. Singh et al.
- Decreases in South Pacific and South Atlantic sea-air CO2 fluxes caused by extreme precipitation Z. Li et al.
- Westerly wind shifts drove Southern Hemisphere mid-latitude peat growth since the last glacial Z. Thomas et al.
- Seawater oxygen isotopes as a tool for monitoring future meltwater from the Antarctic ice-sheet H. Kim & A. Timmermann
- Southern Ocean drives multidecadal atmospheric CO 2 rise during Heinrich Stadials K. Wendt et al.
- Influence of Antarctic Circumpolar Current frontal migration across the Mid-Brunhes transition in the Southeastern Pacific and its linkages to inter-basin intermediate-water dynamics S. Datta et al.
- Southern Ocean CO2 outgassing and nutrient load reduced by a well-ventilated glacial North Pacific M. Shankle et al.
- Evolving Southern Ocean overturning in warming climates T. Zhu & W. Liu
- Late Pliocene ice sheets as an analogue for future climate: a sensitivity study of the polar Southern Hemisphere K. Power et al.
- Large direct and indirect impacts of ozone-depleting substances on past Southern Hemisphere atmosphere-ocean trends M. Sigmond & L. Polvani
- Southern Annular Mode dynamics, projections and impacts in a changing climate A. Purich et al.
- A Mesoscale Resolving Model Reveals Pathways of Nutrient Transport Across Southern Ocean Fronts E. Ellison et al.
- Interannual variability of air-sea CO2 exchange in the Northern Yellow Sea and its underlying mechanisms J. Lv et al.
13 citations as recorded by crossref.
- Inter-hemispheric climate linkages and monsoonal controls on the Arabian Sea surface temperatures H. Singh et al.
- Decreases in South Pacific and South Atlantic sea-air CO2 fluxes caused by extreme precipitation Z. Li et al.
- Westerly wind shifts drove Southern Hemisphere mid-latitude peat growth since the last glacial Z. Thomas et al.
- Seawater oxygen isotopes as a tool for monitoring future meltwater from the Antarctic ice-sheet H. Kim & A. Timmermann
- Southern Ocean drives multidecadal atmospheric CO 2 rise during Heinrich Stadials K. Wendt et al.
- Influence of Antarctic Circumpolar Current frontal migration across the Mid-Brunhes transition in the Southeastern Pacific and its linkages to inter-basin intermediate-water dynamics S. Datta et al.
- Southern Ocean CO2 outgassing and nutrient load reduced by a well-ventilated glacial North Pacific M. Shankle et al.
- Evolving Southern Ocean overturning in warming climates T. Zhu & W. Liu
- Late Pliocene ice sheets as an analogue for future climate: a sensitivity study of the polar Southern Hemisphere K. Power et al.
- Large direct and indirect impacts of ozone-depleting substances on past Southern Hemisphere atmosphere-ocean trends M. Sigmond & L. Polvani
- Southern Annular Mode dynamics, projections and impacts in a changing climate A. Purich et al.
- A Mesoscale Resolving Model Reveals Pathways of Nutrient Transport Across Southern Ocean Fronts E. Ellison et al.
- Interannual variability of air-sea CO2 exchange in the Northern Yellow Sea and its underlying mechanisms J. Lv et al.
Saved (final revised paper)
Latest update: 20 May 2026
Short summary
As the ocean absorbs 25% of the anthropogenic emissions of carbon, it is important to understand the impact of climate change on the flux of carbon between the ocean and the atmosphere. Here, we use a very high-resolution ocean, sea-ice, carbon cycle model to show that the capability of the Southern Ocean to uptake CO2 has decreased over the last 40 years due to a strengthening and poleward shift of the southern hemispheric westerlies. This trend is expected to continue over the coming century.
As the ocean absorbs 25% of the anthropogenic emissions of carbon, it is important to understand...
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