Articles | Volume 19, issue 18
https://doi.org/10.5194/acp-19-11953-2019
https://doi.org/10.5194/acp-19-11953-2019
Research article
 | 
25 Sep 2019
Research article |  | 25 Sep 2019

Diurnal variability, photochemical production and loss processes of hydrogen peroxide in the boundary layer over Europe

Horst Fischer, Raoul Axinte, Heiko Bozem, John N. Crowley, Cheryl Ernest, Stefan Gilge, Sascha Hafermann, Hartwig Harder, Korbinian Hens, Ruud H. H. Janssen, Rainer Königstedt, Dagmar Kubistin, Chinmay Mallik, Monica Martinez, Anna Novelli, Uwe Parchatka, Christian Plass-Dülmer, Andrea Pozzer, Eric Regelin, Andreas Reiffs, Torsten Schmidt, Jan Schuladen, and Jos Lelieveld

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Cited articles

Acker, K., Kezele, N., Klasnic, L., Möller, D., Pehenec, G., Sorgo, G., Wieprecht, W., and Zuzul, S.: Atmospheric H2O2 measurement and modeling campaign during summer 2004 in Zagreb, Croatia, Atmos. Environ., 42, 2530–2542, https://doi.org/10.1016/j.atmosenv.2007.12.011, 2008. 
Atkinson, R., Baulch, D. L., Cox, R. A., Crowley, J. N., Hampson, R. F., Hynes, R. G., Jenkin, M. E., Rossi, M. J., and Troe, J.: Evaluated kinetic and photochemical data for atmospheric chemistry: Volume I – gas phase reactions of Ox, HOx, NOx and SOx species, Atmos. Chem. Phys., 4, 1461–1738, https://doi.org/10.5194/acp-4-1461-2004, 2004. 
Axinte, R.: The oxidation photochemistry and transport of hydrogen peroxide and formaldehyde at three site in Europe: trends budgets and 3D model simulations, PhD thesis, University of Mainz, Germany, 2016. 
Baer, M. and Nester, K.: Parameterization of trace gas dry deposition velocities for a regional mesoscale diffusion model, Ann. Geophys., 10, 912–923, 1992. 
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We use in situ observations of H2O2 to study the interplay between photochemistry, transport and deposition processes. The data were obtained during five ground-based field campaigns across Europe. A budget calculation indicates that the photochemical production rate was much larger than photochemical loss and that dry deposition is the dominant loss process. To reproduce the change in H2O2 mixing ratios after sunrise, a variable contribution of entrainment from the residual layer is required.
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