Articles | Volume 17, issue 17
https://doi.org/10.5194/bg-17-4459-2020
https://doi.org/10.5194/bg-17-4459-2020
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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AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish subject to minor revisions (review by editor) (15 Jul 2020) by Tyler Cyronak
AR by Markus Huettel on behalf of the Authors (16 Jul 2020)  Author's response    Manuscript
ED: Publish as is (29 Jul 2020) by Tyler Cyronak
AR by Markus Huettel on behalf of the Authors (30 Jul 2020)  Author's response    Manuscript
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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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