Strong Southern Ocean carbon uptake evident in airborne observations
The Southern Ocean plays an important role in determining atmospheric carbon dioxide (CO2), yet estimates of air-sea CO2 flux for the region diverge widely. In this study, we constrained Southern Ocean air-sea CO2 exchange by relating fluxes to horizontal and vertical CO2 gradients in atmospheric tr...
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2021
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Online Access: | https://hdl.handle.net/11370/0601766f-9b82-4c61-a48a-c9773dcfc0a4 https://research.rug.nl/en/publications/0601766f-9b82-4c61-a48a-c9773dcfc0a4 https://doi.org/10.1126/science.abi4355 https://pure.rug.nl/ws/files/195666739/science.abi4355.pdf |
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ftunigroningenpu:oai:pure.rug.nl:publications/0601766f-9b82-4c61-a48a-c9773dcfc0a4 2024-09-15T18:36:59+00:00 Strong Southern Ocean carbon uptake evident in airborne observations Long, Matthew C Stephens, Britton B McKain, Kathryn Sweeney, Colm Keeling, Ralph F Kort, Eric A Morgan, Eric J Bent, Jonathan D Chandra, Naveen Chevallier, Frederic Commane, Róisín Daube, Bruce C Krummel, Paul B Loh, Zoë Luijkx, Ingrid T Munro, David Patra, Prabir Peters, Wouter Ramonet, Michel Rödenbeck, Christian Stavert, Ann Tans, Pieter Wofsy, Steven C 2021-12-02 application/pdf https://hdl.handle.net/11370/0601766f-9b82-4c61-a48a-c9773dcfc0a4 https://research.rug.nl/en/publications/0601766f-9b82-4c61-a48a-c9773dcfc0a4 https://doi.org/10.1126/science.abi4355 https://pure.rug.nl/ws/files/195666739/science.abi4355.pdf eng eng https://research.rug.nl/en/publications/0601766f-9b82-4c61-a48a-c9773dcfc0a4 info:eu-repo/semantics/openAccess Long , M C , Stephens , B B , McKain , K , Sweeney , C , Keeling , R F , Kort , E A , Morgan , E J , Bent , J D , Chandra , N , Chevallier , F , Commane , R , Daube , B C , Krummel , P B , Loh , Z , Luijkx , I T , Munro , D , Patra , P , Peters , W , Ramonet , M , Rödenbeck , C , Stavert , A , Tans , P & Wofsy , S C 2021 , ' Strong Southern Ocean carbon uptake evident in airborne observations ' , Science , vol. 374 , no. 6572 , pp. 1275-1280 . https://doi.org/10.1126/science.abi4355 article 2021 ftunigroningenpu https://doi.org/10.1126/science.abi4355 2024-07-01T14:49:24Z The Southern Ocean plays an important role in determining atmospheric carbon dioxide (CO2), yet estimates of air-sea CO2 flux for the region diverge widely. In this study, we constrained Southern Ocean air-sea CO2 exchange by relating fluxes to horizontal and vertical CO2 gradients in atmospheric transport models and applying atmospheric observations of these gradients to estimate fluxes. Aircraft-based measurements of the vertical atmospheric CO2 gradient provide robust flux constraints. We found an annual mean flux of –0.53 ± 0.23 petagrams of carbon per year (net uptake) south of 45°S during the period 2009–2018. This is consistent with the mean of atmospheric inversion estimates and surface-ocean partial pressure of CO2 (PCO2)–based products, but our data indicate stronger annual mean uptake than suggested by recent interpretations of profiling float observations. Article in Journal/Newspaper Southern Ocean University of Groningen research database Science 374 6572 1275 1280 |
institution |
Open Polar |
collection |
University of Groningen research database |
op_collection_id |
ftunigroningenpu |
language |
English |
description |
The Southern Ocean plays an important role in determining atmospheric carbon dioxide (CO2), yet estimates of air-sea CO2 flux for the region diverge widely. In this study, we constrained Southern Ocean air-sea CO2 exchange by relating fluxes to horizontal and vertical CO2 gradients in atmospheric transport models and applying atmospheric observations of these gradients to estimate fluxes. Aircraft-based measurements of the vertical atmospheric CO2 gradient provide robust flux constraints. We found an annual mean flux of –0.53 ± 0.23 petagrams of carbon per year (net uptake) south of 45°S during the period 2009–2018. This is consistent with the mean of atmospheric inversion estimates and surface-ocean partial pressure of CO2 (PCO2)–based products, but our data indicate stronger annual mean uptake than suggested by recent interpretations of profiling float observations. |
format |
Article in Journal/Newspaper |
author |
Long, Matthew C Stephens, Britton B McKain, Kathryn Sweeney, Colm Keeling, Ralph F Kort, Eric A Morgan, Eric J Bent, Jonathan D Chandra, Naveen Chevallier, Frederic Commane, Róisín Daube, Bruce C Krummel, Paul B Loh, Zoë Luijkx, Ingrid T Munro, David Patra, Prabir Peters, Wouter Ramonet, Michel Rödenbeck, Christian Stavert, Ann Tans, Pieter Wofsy, Steven C |
spellingShingle |
Long, Matthew C Stephens, Britton B McKain, Kathryn Sweeney, Colm Keeling, Ralph F Kort, Eric A Morgan, Eric J Bent, Jonathan D Chandra, Naveen Chevallier, Frederic Commane, Róisín Daube, Bruce C Krummel, Paul B Loh, Zoë Luijkx, Ingrid T Munro, David Patra, Prabir Peters, Wouter Ramonet, Michel Rödenbeck, Christian Stavert, Ann Tans, Pieter Wofsy, Steven C Strong Southern Ocean carbon uptake evident in airborne observations |
author_facet |
Long, Matthew C Stephens, Britton B McKain, Kathryn Sweeney, Colm Keeling, Ralph F Kort, Eric A Morgan, Eric J Bent, Jonathan D Chandra, Naveen Chevallier, Frederic Commane, Róisín Daube, Bruce C Krummel, Paul B Loh, Zoë Luijkx, Ingrid T Munro, David Patra, Prabir Peters, Wouter Ramonet, Michel Rödenbeck, Christian Stavert, Ann Tans, Pieter Wofsy, Steven C |
author_sort |
Long, Matthew C |
title |
Strong Southern Ocean carbon uptake evident in airborne observations |
title_short |
Strong Southern Ocean carbon uptake evident in airborne observations |
title_full |
Strong Southern Ocean carbon uptake evident in airborne observations |
title_fullStr |
Strong Southern Ocean carbon uptake evident in airborne observations |
title_full_unstemmed |
Strong Southern Ocean carbon uptake evident in airborne observations |
title_sort |
strong southern ocean carbon uptake evident in airborne observations |
publishDate |
2021 |
url |
https://hdl.handle.net/11370/0601766f-9b82-4c61-a48a-c9773dcfc0a4 https://research.rug.nl/en/publications/0601766f-9b82-4c61-a48a-c9773dcfc0a4 https://doi.org/10.1126/science.abi4355 https://pure.rug.nl/ws/files/195666739/science.abi4355.pdf |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
Long , M C , Stephens , B B , McKain , K , Sweeney , C , Keeling , R F , Kort , E A , Morgan , E J , Bent , J D , Chandra , N , Chevallier , F , Commane , R , Daube , B C , Krummel , P B , Loh , Z , Luijkx , I T , Munro , D , Patra , P , Peters , W , Ramonet , M , Rödenbeck , C , Stavert , A , Tans , P & Wofsy , S C 2021 , ' Strong Southern Ocean carbon uptake evident in airborne observations ' , Science , vol. 374 , no. 6572 , pp. 1275-1280 . https://doi.org/10.1126/science.abi4355 |
op_relation |
https://research.rug.nl/en/publications/0601766f-9b82-4c61-a48a-c9773dcfc0a4 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1126/science.abi4355 |
container_title |
Science |
container_volume |
374 |
container_issue |
6572 |
container_start_page |
1275 |
op_container_end_page |
1280 |
_version_ |
1810480927061573632 |