Articles | Volume 14, issue 6
Atmos. Meas. Tech., 14, 4279–4304, 2021
https://doi.org/10.5194/amt-14-4279-2021
Atmos. Meas. Tech., 14, 4279–4304, 2021
https://doi.org/10.5194/amt-14-4279-2021

Research article 09 Jun 2021

Research article | 09 Jun 2021

Simultaneous measurement of δ13C, δ18O and δ17O of atmospheric CO2 – performance assessment of a dual-laser absorption spectrometer

Pharahilda M. Steur et al.

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Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Farilde Steur on behalf of the Authors (20 Feb 2021)  Author's response    Author's tracked changes    Manuscript
ED: Referee Nomination & Report Request started (03 Mar 2021) by Tim Arnold
RR by David Griffith (23 Mar 2021)
ED: Publish subject to minor revisions (review by editor) (07 Apr 2021) by Tim Arnold
AR by Farilde Steur on behalf of the Authors (17 Apr 2021)  Author's response    Author's tracked changes    Manuscript
ED: Publish as is (21 Apr 2021) by Tim Arnold
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Short summary
For understanding the sources and sinks of atmospheric CO2, measurement of stable isotopes has proven to be highly valuable. We present a new method using laser absorption spectroscopy to simultaneously conduct measurements of three CO2 isotopes, directly on dry-air samples. This new method reduces sample preparation time significantly, compared to the conventional method in which measurements are conducted on pure CO2, and avoids measurement biases introduced by CO2 extraction.