Articles | Volume 19, issue 9
Research article
16 May 2019
Research article |  | 16 May 2019

Effect of sea salt aerosol on tropospheric bromine chemistry

Lei Zhu, Daniel J. Jacob, Sebastian D. Eastham, Melissa P. Sulprizio, Xuan Wang, Tomás Sherwen, Mat J. Evans, Qianjie Chen, Becky Alexander, Theodore K. Koenig, Rainer Volkamer, L. Gregory Huey, Michael Le Breton, Thomas J. Bannan, and Carl J. Percival

Data sets

GEOS-Chem chemistry mechanism and monthly bromine simulation output Lei Zhu et al.

Model code and software

GEOS-Chem 12.3.0 The International GEOS-Chem User Community

Short summary
We quantify the effect of sea salt aerosol on tropospheric bromine chemistry with a new mechanistic description of the halogen chemistry in a global atmospheric chemistry model. For the first time, we are able to reproduce the observed levels of bromide activation from the sea salt aerosol in a manner consistent with bromine oxide radical measured from various platforms. Sea salt aerosol plays a far more complex role in global tropospheric chemistry than previously recognized.
Final-revised paper