Articles | Volume 15, issue 15
Atmos. Meas. Tech., 15, 4473–4487, 2022
https://doi.org/10.5194/amt-15-4473-2022
Atmos. Meas. Tech., 15, 4473–4487, 2022
https://doi.org/10.5194/amt-15-4473-2022
Research article
03 Aug 2022
Research article | 03 Aug 2022

Development of a broadband cavity-enhanced absorption spectrometer for simultaneous measurements of ambient NO3, NO2, and H2O

Woohui Nam 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
  • RC1: 'Comment on egusphere-2022-145', Anonymous Referee #1, 29 Apr 2022
    • AC1: 'Reply on RC1', Woohui Nam, 19 May 2022
  • RC2: 'Comment on egusphere-2022-145', Anonymous Referee #2, 06 Jun 2022
    • AC2: 'Reply on RC2', Woohui Nam, 13 Jun 2022

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Woohui Nam on behalf of the Authors (14 Jun 2022)  Author's response    Author's tracked changes    Manuscript
ED: Publish as is (23 Jun 2022) by Marc von Hobe
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Short summary
We describe our vibration-resistant instrument for measuring ambient NO3, NO2, and H2O based on cavity-enhanced absorption spectroscopy. By simultaneous retrieval of H2O with the other species using a measured H2O absorption spectrum, direct quantifications among all species are possible without any pre-treatment for H2O. Our instrument achieves the effective light path to ~101.5 km, which allows the sensitive measurements of NO3 and NO2 as 1.41 pptv and 6.92 ppbv (1σ) in 1 s.