Articles | Volume 17, issue 15
https://doi.org/10.5194/acp-17-9291-2017
https://doi.org/10.5194/acp-17-9291-2017
Research article
 | 
04 Aug 2017
Research article |  | 04 Aug 2017

Horizontal and vertical structure of reactive bromine events probed by bromine monoxide MAX-DOAS

William R. Simpson, Peter K. Peterson, Udo Frieß, Holger Sihler, Johannes Lampel, Ulrich Platt, Chris Moore, Kerri Pratt, Paul Shepson, John Halfacre, and Son V. Nghiem

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Cited articles

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Barrie, L. A., Bottenheim, J. W., Schnell, R. C., Crutzen, P. J., and Rasmussen, R. A.: Ozone destruction and photochemical reactions at polar sunrise in the lower Arctic atmosphere, Nature, 334, 138–141, 1988.
Begoin, M., Richter, A., Weber, M., Kaleschke, L., Tian-Kunze, X., Stohl, A., Theys, N., and Burrows, J. P.: Satellite observations of long range transport of a large BrO plume in the Arctic, Atmos. Chem. Phys., 10, 6515–6526, https://doi.org/10.5194/acp-10-6515-2010, 2010.
Bhatt, U. S., Walker, D. A., Walsh, J. E., Carmack, E. C., Frey, K. E., Meier, W. N., Moore, S. E., Parmentier, F.-J. W., Post, E., Romanovsky, V. E., and Simpson, W. R.: Implications of Arctic Sea Ice Decline for the Earth System, Annu. Rev. Env. Resour., 39, 57–89, https://doi.org/10.1146/annurev-environ-122012-094357, 2014.
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Short summary
We investigated Arctic atmospheric bromine chemistry during March–April 2012 to improve understanding of the role of sea ice and cracks in sea ice (leads) in this phenomenon. We find that leads vertically redistribute reactive bromine but that open/re-freezing leads are not major direct reactive halogen sources. Surface ozone depletion affects the vertical distribution and amount of reactive halogens, and aerosol particles are necessary but not sufficient to maintain reactive bromine aloft.
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