Measurement of NOx and NOy with a thermal dissociation cavity ring-down spectrometer (TD-CRDS): instrument characterisation and first deployment

Friedrich, Nils; Tadic, Ivan; Schuladen, Jan; Brooks, James; Darbyshire, Eoghan; Drewnick, Frank; Fischer, Horst; Lelieveld, Jos; Crowley, John N.

doi:https://doi.org/10.5194/amt-13-5739-2020

Articles | Volume 13, issue 10

https://doi.org/10.5194/amt-13-5739-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/amt-13-5739-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 13, issue 10

Research article

|

29 Oct 2020

Research article |

| 29 Oct 2020

Measurement of NO_x and NO_y with a thermal dissociation cavity ring-down spectrometer (TD-CRDS): instrument characterisation and first deployment

Nils Friedrich, Ivan Tadic, Jan Schuladen, James Brooks, Eoghan Darbyshire, Frank Drewnick, Horst Fischer, Jos Lelieveld, and John N. Crowley

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Final revised paper (published on 29 Oct 2020)
Supplement to the final revised paper
Preprint (discussion started on 25 May 2020)
Supplement to the preprint

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'Reviewer comments', Anonymous Referee #1, 24 Jun 2020
- AC1: 'Reply to RC1', Nils Friedrich, 17 Aug 2020
RC2: 'Review of Friedrich et al.', Anonymous Referee #2, 09 Jul 2020
- AC2: 'Reply to RC2', Nils Friedrich, 17 Aug 2020
RC3: 'Review of Friedrich AMTD', Anonymous Referee #3, 19 Jul 2020
- AC3: 'Reply to RC3', Nils Friedrich, 17 Aug 2020

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Svenja Lange on behalf of the Authors (25 Aug 2020) Author's response Manuscript

ED: Publish as is (11 Sep 2020) by Dwayne Heard

Post-review adjustments

AA: Author's adjustment | EA: Editor approval

AA by Nils Friedrich on behalf of the Authors (28 Oct 2020) Author's adjustment Manuscript

EA: Adjustments approved (29 Oct 2020) by Dwayne Heard

Short summary

We present a new instrument for the measurement of NO_x and NO_y based on a combination of the thermal dissociation of NO_y to NO_x and cavity ring-down spectroscopic detection of NO₂. It features a denuder to separate the contributions of gas-phase and particulate nitrates to NO_y. We provide a detailed characterization of the instrument and briefly outline results from first deployments.