Articles | Volume 18, issue 19
Biogeosciences, 18, 5381–5395, 2021
https://doi.org/10.5194/bg-18-5381-2021
Biogeosciences, 18, 5381–5395, 2021
https://doi.org/10.5194/bg-18-5381-2021

Technical note 04 Oct 2021

Technical note | 04 Oct 2021

Technical note: Novel triple O2 sensor aquatic eddy covariance instrument with improved time shift correction reveals central role of microphytobenthos for carbon cycling in coral reef sands

Alireza Merikhi et al.

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Cited articles

Attard, K. M. and Glud, R. N.: Technical note: Estimating light-use efficiency of benthic habitats using underwater O2 eddy covariance, Biogeosciences, 17, 4343–4353, https://doi.org/10.5194/bg-17-4343-2020, 2020. 
Attard, K. M., Hancke, K., Sejr, M. K., and Glud, R. N.: Benthic primary production and mineralization in a High Arctic fjord: in situ assessments by aquatic eddy covariance, Mar. Ecol. Prog. Ser., 554, 35–50, https://doi.org/10.3354/meps11780, 2016. 
Baldocchi, D. D.: Assessing the eddy covariance technique for evaluating carbon dioxide exchange rates of ecosystems: past, present and future, Glob. Change Biol., 9, 479–492, https://doi.org/10.1046/j.1365-2486.2003.00629.x, 2003. 
Berg, P. and Huettel, M.: Monitoring the Seafloor Using the Noninvasive Eddy Correlation Technique: Integrated Benthic Exchange Dynamics, Oceanography, 21, 164–167, 2008. 
Berg, P., Roy, H., Janssen, F., Meyer, V., Jorgensen, B. B., Huettel, M., and de Beer, D.: Oxygen uptake by aquatic sediments measured with a novel non-invasive eddy-correlation technique, Mar. Ecol. Prog. Ser., 261, 75–83, 2003. 
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The aquatic eddy covariance technique is a powerful method for measurements of solute fluxes across the sediment–water interface. Data measured by conventional eddy covariance instruments require a time shift correction that can result in substantial flux errors. We introduce a triple O2 sensor eddy covariance instrument that by design eliminates these errors. Deployments next to a conventional instrument in the Florida Keys demonstrate the improvements achieved through the new design.
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