Intercomparison of the comparative reactivity method (CRM) and pump–probe  technique for measuring total OH reactivity in an urban environment

Hansen, R. F.; Blocquet, M.; Schoemaecker, C.; Léonardis, T.; Locoge, N.; Fittschen, C.; Hanoune, B.; Stevens, P. S.; Sinha, V.; Dusanter, S.

doi:https://doi.org/10.5194/amt-8-4243-2015

Articles | Volume 8, issue 10

https://doi.org/10.5194/amt-8-4243-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/amt-8-4243-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 8, issue 10

Research article

|

14 Oct 2015

Research article |

| 14 Oct 2015

Intercomparison of the comparative reactivity method (CRM) and pump–probe technique for measuring total OH reactivity in an urban environment

R. F. Hansen, M. Blocquet, C. Schoemaecker, T. Léonardis, N. Locoge, C. Fittschen, B. Hanoune, P. S. Stevens, V. Sinha, and S. Dusanter

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Final revised paper (published on 14 Oct 2015)
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Status: closed

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

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RC C1931: 'review of the article', Anonymous Referee #1, 10 Jul 2015
RC C1962: 'Review of ‘Intercomparison of the Comparative Reactivity Method (CRM) and Pump-Probe technique for measuring total OH reactivity in an urban environment’, Hansen et al. 2015. Amt-2015-128.', Anonymous Referee #2, 13 Jul 2015
AC C3035: 'Response to referee comments', Robert Hansen, 19 Sep 2015

Short summary

This paper describes and presents results from a intercomparison, in an environment rich in NOx (i.e., NO+NO2), of two OH reactivity instruments: one based on the comparative reactivity method, and one based on the pump-probe method. Co-located measurements were made of both ambient air and standard mixtures. Ambient OH reactivity values measured by both instruments were found to be in good agreement for ambient NOx mixing ratios as high as 100 ppbv.