New Estimates of Southern Ocean Annual Net Community Production Revealed by BGC‐Argo Floats
Abstract Using an expanding Southern Ocean fleet of biogeochemical Argo (BGC‐Argo) floats, we developed a novel approach to estimate annual net community production (ANCP) by integrating subsurface oxygen drawdown from all available BGC‐Argo oxygen profiles. Our results suggest that, on average, 14%...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2022-08-01
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| Series: | Geophysical Research Letters |
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| Online Access: | https://doi.org/10.1029/2021GL097372 |
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| author | Jiaoyang Su Christina Schallenberg Tyler Rohr Peter G. Strutton Helen E. Phillips |
| author_facet | Jiaoyang Su Christina Schallenberg Tyler Rohr Peter G. Strutton Helen E. Phillips |
| author_sort | Jiaoyang Su |
| collection | DOAJ |
| description | Abstract Using an expanding Southern Ocean fleet of biogeochemical Argo (BGC‐Argo) floats, we developed a novel approach to estimate annual net community production (ANCP) by integrating subsurface oxygen drawdown from all available BGC‐Argo oxygen profiles. Our results suggest that, on average, 14% of remineralization occurs between 500 and 1,000 m and 15% occurs between the euphotic depth and 100 m. Using the improved methodology, we estimated total basin‐integrated ANCP in the Southern Ocean to be 3.89 GT C year−1 suggesting a more important role for the Southern Ocean in regulating oceanic carbon storage, atmospheric CO2 exchange and climate than previously assumed. |
| format | Article |
| id | doaj-art-6e756825404a416699e1b10c464da721 |
| institution | OA Journals |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2022-08-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-6e756825404a416699e1b10c464da7212025-08-20T02:12:53ZengWileyGeophysical Research Letters0094-82761944-80072022-08-014915n/an/a10.1029/2021GL097372New Estimates of Southern Ocean Annual Net Community Production Revealed by BGC‐Argo FloatsJiaoyang Su0Christina Schallenberg1Tyler Rohr2Peter G. Strutton3Helen E. Phillips4Institute for Marine and Antarctic Studies University of Tasmania Hobart TAS AustraliaInstitute for Marine and Antarctic Studies University of Tasmania Hobart TAS AustraliaAustralian Antarctic Program Partnership Hobart TAS AustraliaInstitute for Marine and Antarctic Studies University of Tasmania Hobart TAS AustraliaInstitute for Marine and Antarctic Studies University of Tasmania Hobart TAS AustraliaAbstract Using an expanding Southern Ocean fleet of biogeochemical Argo (BGC‐Argo) floats, we developed a novel approach to estimate annual net community production (ANCP) by integrating subsurface oxygen drawdown from all available BGC‐Argo oxygen profiles. Our results suggest that, on average, 14% of remineralization occurs between 500 and 1,000 m and 15% occurs between the euphotic depth and 100 m. Using the improved methodology, we estimated total basin‐integrated ANCP in the Southern Ocean to be 3.89 GT C year−1 suggesting a more important role for the Southern Ocean in regulating oceanic carbon storage, atmospheric CO2 exchange and climate than previously assumed.https://doi.org/10.1029/2021GL097372annual net community productioncarbon exportoxygen drawdownremineralizationBGC‐Argo floatsthe Southern Ocean |
| spellingShingle | Jiaoyang Su Christina Schallenberg Tyler Rohr Peter G. Strutton Helen E. Phillips New Estimates of Southern Ocean Annual Net Community Production Revealed by BGC‐Argo Floats Geophysical Research Letters annual net community production carbon export oxygen drawdown remineralization BGC‐Argo floats the Southern Ocean |
| title | New Estimates of Southern Ocean Annual Net Community Production Revealed by BGC‐Argo Floats |
| title_full | New Estimates of Southern Ocean Annual Net Community Production Revealed by BGC‐Argo Floats |
| title_fullStr | New Estimates of Southern Ocean Annual Net Community Production Revealed by BGC‐Argo Floats |
| title_full_unstemmed | New Estimates of Southern Ocean Annual Net Community Production Revealed by BGC‐Argo Floats |
| title_short | New Estimates of Southern Ocean Annual Net Community Production Revealed by BGC‐Argo Floats |
| title_sort | new estimates of southern ocean annual net community production revealed by bgc argo floats |
| topic | annual net community production carbon export oxygen drawdown remineralization BGC‐Argo floats the Southern Ocean |
| url | https://doi.org/10.1029/2021GL097372 |
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