Articles | Volume 20, issue 15
Atmos. Chem. Phys., 20, 9209–9230, 2020
Atmos. Chem. Phys., 20, 9209–9230, 2020

Research article 05 Aug 2020

Research article | 05 Aug 2020

OH and HO2 radical chemistry in a midlatitude forest: measurements and model comparisons

Michelle M. Lew et al.

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Subject: Biosphere Interactions | Research Activity: Field Measurements | Altitude Range: Troposphere | Science Focus: Chemistry (chemical composition and reactions)
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Cited articles

Badol, C., Borbon, A., Locoge, N., Leonardis, T., and Galloo, J. C.: An automated monitoring system for VOC ozone precursors in ambient air: development, implementation and data analysis, Anal. Bioanal. Chem., 378, 7, 1815–1827, 2004. 
Berndt, T., Hyttinen, N., Herrmann, H., and Hansel, A.: First oxidation products from the reaction of hydroxyl radicals with isoprene for pristine environmental conditions, Commun. Chem., 2, 21,, 2019. 
Bottorff, B., Stevens, P. S., Lew, M., Rickly, P., and Dusanter, S.: Measurements of Nitrous Acid (HONO) in an Indiana Forest by Laser Photofragmentation/Laser-Induced Flourescence (LP/LIF), Abstract A21B-0116 presented at 2015 Fall Meeting, AGU, San Francisco, CA, 14–18 December, 2015. 
Bottorff, B., Reidy, E., Mielke, L., Dusanter, S., and Stevens, P. S.: Development of Laser Photo-fragmentation Laser-Induced Fluorescence instrument for the measurement of nitrous acid in the atmosphere, Atmos. Meas. Tech., in preparation, 2020. 
Short summary
The OH radical is the primary oxidant in the atmosphere, and measurements of its concentration provide a rigorous test of our understanding of atmospheric chemistry. Previous measurements of OH concentrations in forest environments have shown large discrepancies with model predictions. In this paper, we present measurements of OH in a forest in Indiana, USA, and compare the results to model predictions to test our understanding of this important chemistry.
Final-revised paper