Articles | Volume 14, issue 9
Atmos. Meas. Tech., 14, 6181–6193, 2021
https://doi.org/10.5194/amt-14-6181-2021
Atmos. Meas. Tech., 14, 6181–6193, 2021
https://doi.org/10.5194/amt-14-6181-2021

Research article 24 Sep 2021

Research article | 24 Sep 2021

Intercomparison of O2 ∕ N2 ratio scales among AIST, NIES, TU, and SIO based on a round-robin exercise using gravimetric standard mixtures

Nobuyuki Aoki et al.

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Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • CC1: 'Comment on amt-2020-481', Nobuhiro Matsumoto, 26 Feb 2021
    • AC1: 'Reply on CC1', Nobuyuki Aoki, 06 Jul 2021
  • RC1: 'Comment on amt-2020-481', Anonymous Referee #1, 21 Mar 2021
    • AC2: 'Reply on RC1', Nobuyuki Aoki, 06 Jul 2021
  • RC2: 'Comment on amt-2020-481', Britton Stephens, 24 May 2021
    • AC3: 'Reply on RC2', Nobuyuki Aoki, 06 Jul 2021

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Nobuyuki Aoki on behalf of the Authors (06 Jul 2021)  Author's response    Manuscript
ED: Publish subject to technical corrections (11 Aug 2021) by Thomas Röckmann
AR by Nobuyuki Aoki on behalf of the Authors (11 Aug 2021)  Author's response    Manuscript
Short summary
Observing the minimal long-term change in atmospheric O2 molar fraction combined with CO2 observation enables us to estimate terrestrial biospheric and oceanic CO2 uptakes separately. In this study, we firstly identified the span offset between the laboratory O2 scales using our developed high-precision standard mixtures, suggesting that the result may allow us to estimate terrestrial biospheric and oceanic CO2 uptakes precisely.