Articles | Volume 24, issue 7
Hydrol. Earth Syst. Sci., 24, 3871–3880, 2020
https://doi.org/10.5194/hess-24-3871-2020
Hydrol. Earth Syst. Sci., 24, 3871–3880, 2020
https://doi.org/10.5194/hess-24-3871-2020

Technical note 30 Jul 2020

Technical note | 30 Jul 2020

A Fast-Response Automated Gas Equilibrator (FaRAGE) for continuous in situ measurement of CH4 and CO2 dissolved in water

Shangbin Xiao et al.

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AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish subject to minor revisions (further review by editor) (17 Jun 2020) by Brian Berkowitz
AR by Anna Wenzel on behalf of the Authors (26 Jun 2020)  Author's response    Manuscript
ED: Publish as is (04 Jul 2020) by Brian Berkowitz
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Short summary
To better understand the fate of methane (CH4) and carbon dioxide (CO2) in freshwaters, dissolved CH4 and CO2 need to be measured with a high temporal resolution. We developed the Fast-Response Automated Gas Equilibrator (FaRAGE) for real-time in situ measurement of dissolved gases in water. FaRAGE can achieve a short response time (CH4: t95 % = 12 s; CO2: t95 % = 10 s) while retaining a high equilibration ratio and accuracy.