Implementation of a chemical background method for atmospheric OH measurements by laser-induced fluorescence: characterisation and observations from the UK and China

Woodward-Massey, Robert; Slater, Eloise J.; Alen, Jake; Ingham, Trevor; Cryer, Danny R.; Stimpson, Leanne M.; Ye, Chunxiang; Seakins, Paul W.; Whalley, Lisa K.; Heard, Dwayne E.

doi:https://doi.org/10.5194/amt-13-3119-2020

Articles | Volume 13, issue 6

https://doi.org/10.5194/amt-13-3119-2020

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

https://doi.org/10.5194/amt-13-3119-2020

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

Articles | Volume 13, issue 6

Research article

|

12 Jun 2020

Research article |

| 12 Jun 2020

Implementation of a chemical background method for atmospheric OH measurements by laser-induced fluorescence: characterisation and observations from the UK and China

Robert Woodward-Massey, Eloise J. Slater, Jake Alen, Trevor Ingham, Danny R. Cryer, Leanne M. Stimpson, Chunxiang Ye, Paul W. Seakins, Lisa K. Whalley, and Dwayne E. Heard

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Final revised paper (published on 12 Jun 2020)
Supplement to the final revised paper
Preprint (discussion started on 15 Jan 2020)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'MS No.: amt-2019-487', Anonymous Referee #1, 27 Jan 2020
- AC1: 'Response to Referee #1 RC1', Dwayne Heard, 06 Apr 2020
- AC3: 'Response to RC1 Figures', Dwayne Heard, 06 Apr 2020
RC2: 'Review amt-219-487', Anonymous Referee #2, 13 Mar 2020
- AC2: 'Response to Referee #2 RC2', Dwayne Heard, 06 Apr 2020

Peer-review completion

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

AR by Dwayne Heard on behalf of the Authors (07 Apr 2020) Author's response Manuscript

ED: Publish subject to technical corrections (29 Apr 2020) by Anna Novelli

AR by Dwayne Heard on behalf of the Authors (07 May 2020) Manuscript

Short summary

The OH radical is known as nature’s detergent, removing most trace gases from the atmosphere. Hence, an accurate measurement of its concentration is very important. We present measurements of OH in several field locations using a laser-based fluorescence method equipped with an OH scavenger. By determining the background signal in two different ways, we show that the instrument does not suffer any significant interferences that could result in an overestimation of OH concentrations.