Articles | Volume 18, issue 13
https://doi.org/10.5194/acp-18-9283-2018
https://doi.org/10.5194/acp-18-9283-2018
Research article
 | 
03 Jul 2018
Research article |  | 03 Jul 2018

In situ observation of atmospheric oxygen and carbon dioxide in the North Pacific using a cargo ship

Yu Hoshina, Yasunori Tohjima, Keiichi Katsumata, Toshinobu Machida, and Shin-ichiro Nakaoka

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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Yu Hoshina on behalf of the Authors (08 Jun 2018)  Author's response   Manuscript 
ED: Publish as is (23 Jun 2018) by Martin Heimann
AR by Yu Hoshina on behalf of the Authors (25 Jun 2018)
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Short summary
We installed a low flow rate measurement system on a cargo ship sailing between Japan and North America and started onboard continuous measurements for O2 and CO2. From the comparison between the in situ measurements and flask samples, we concluded that the uncertainties in the O2 and CO2 mole fraction for the in situ measurements are about 9 per meg and about 0.3 ppm, respectively.
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