Articles | Volume 18, issue 5
Research article
15 Mar 2018
Research article |  | 15 Mar 2018

Direct measurement of NO3 radical reactivity in a boreal forest

Jonathan Liebmann, Einar Karu, Nicolas Sobanski, Jan Schuladen, Mikael Ehn, Simon Schallhart, Lauriane Quéléver, Heidi Hellen, Hannele Hakola, Thorsten Hoffmann, Jonathan Williams, Horst Fischer, Jos Lelieveld, and John N. Crowley


Interactive discussion

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AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR: Author's response | RR: Referee report | ED: Editor decision
AR by John N. Crowley on behalf of the Authors (01 Feb 2018)  Author's response   Manuscript 
ED: Publish as is (12 Feb 2018) by Dwayne Heard
AR by John N. Crowley on behalf of the Authors (13 Feb 2018)  Manuscript 
Short summary
Using a newly developed experimental setup, we have made the first direct measurements (during autumn 2016) of NO3 reactivity in the Finnish boreal forest. The NO3 reactivity was generally very high (maximum value of 0.94/s) so that daytime reaction with organics was a substantial fraction of the NO3 loss. Observations of biogenic hydrocarbons (BVOCs) suggested a dominant role for monoterpenes in determining the NO3 reactivity, which displayed a strong vertical gradient between 8.5 and 25 m.
Final-revised paper