Articles | Volume 19, issue 7
https://doi.org/10.5194/bg-19-2043-2022
© Author(s) 2022. 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-19-2043-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
14 Apr 2022
Research article |
| 14 Apr 2022
| 14 Apr 2022
New constraints on biological production and mixing processes in the South China Sea from triple isotope composition of dissolved oxygen
Hana Jurikova
CORRESPONDING AUTHOR
School of Earth and Environmental Sciences, University of St Andrews,
KY16 9TS St Andrews, United Kingdom
Osamu Abe
Graduate School of Environmental Studies, Nagoya University, 464-8601
Nagoya, Japan
Fuh-Kwo Shiah
Research Center for Environmental Changes, Academia Sinica, 11529
Taipei, Taiwan
Institute of Earth Sciences, Academia Sinica, 11529 Taipei, Taiwan
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Short summary
We studied the isotopic composition of oxygen dissolved in seawater in the South China Sea. This tells us about the origin of oxygen in the water column, distinguishing between biological oxygen produced by phytoplankton communities and atmospheric oxygen entering seawater through gas exchange. We found that the East Asian Monsoon plays an important role in determining the amount of oxygen produced vs. consumed by the phytoplankton, as well as in inducing vertical water mass mixing.
We studied the isotopic composition of oxygen dissolved in seawater in the South China Sea. This...
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