Articles | Volume 18, issue 5
Atmos. Chem. Phys., 18, 3541–3561, 2018
https://doi.org/10.5194/acp-18-3541-2018
Atmos. Chem. Phys., 18, 3541–3561, 2018
https://doi.org/10.5194/acp-18-3541-2018

Research article 12 Mar 2018

Research article | 12 Mar 2018

Impacts of bromine and iodine chemistry on tropospheric OH and HO2: comparing observations with box and global model perspectives

Daniel Stone et al.

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Cited articles

Alicke, B., Hebestriet, H., Stutz, J., and Platt, U.: Iodine oxide in the marine boundary layer, Nature, 397, 572–573, 1999.
Allan, J. D., Topping, D. O., Good, N., Irwin, M., Flynn, M., Williams, P. I., Coe, H., Baker, A. R., Martino, M., Niedermeier, N., Wiedensohler, A., Lehmann, S., Müller, K., Herrmann, H., and McFiggans, G.: Composition and properties of atmospheric particles in the eastern Atlantic and impacts on gas phase uptake rates, Atmos. Chem. Phys., 9, 9299–9314, https://doi.org/10.5194/acp-9-9299-2009, 2009.
Assaf, E., Song, B., Tomas, A., Schoemaker, C., and Fittschen, C.: Rate constant of the reaction between CH3O2 and OH radicals revisited, J. Phys. Chem. A, 120, 8923–8932, 2016.
Assaf, E., Sheps, L., Whalley, L., Heard, D., Tomas, A., Schoemaecker, C., and Fittschen, C.: The reaction between CH3O2 and OH radicals: product yields and atmospheric implications, Environ. Sci. Technol., 51, 4, 2170–2177, https://doi.org/10.1021/acs.est.6b06265, 2017.
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Halogen chemistry in the troposphere impacts oxidising capacity, but model studies assessing the nature of these impacts can vary according to the model framework used. In this work we present simulations of OH and HO2 radicals using both box and global model frameworks, and compare to observations made at the Cape Verde Atmospheric Observatory. We highlight, and rationalise, differences between the model frameworks.
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