Biogeosciences
Biogeosciences
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Articles | Volume 17, issue 17
Articles | Volume 17, issue 17
https://doi.org/10.5194/bg-17-4459-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-17-4459-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 17, issue 17
Technical note
 | 
07 Sep 2020
Technical note |  | 07 Sep 2020

Technical note: Measurements and data analysis of sediment–water oxygen flux using a new dual-optode eddy covariance instrument

Markus Huettel, Peter Berg, and Alireza Merikhi

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Latest update: 20 Jan 2025
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Short summary
Oxygen fluxes are a valued proxy for organic carbon production and mineralization at the seafloor. These fluxes can be measured non-invasively with the aquatic eddy covariance instrument, but the fast, fragile oxygen sensor it uses often causes questionable flux data. We developed a dual-O2-optode instrument and data evaluation method that allow improved flux measurements. Deployments over carbonate sands in the shallow shelf demonstrate that the instrument can produce reliable oxygen flux data.
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