Atmospheric Chemistry and Physics Discussions www.atmos-chem-phys-discuss.net 1680-7367 1680-7375 9 2 2009 10.5194/acpd-9-8903-2009 http://www.atmos-chem-phys-discuss.net/9/8903/2009/ http://www.atmos-chem-phys-discuss.net/9/8903/2009/acpd-9-8903-2009.html http://www.atmos-chem-phys-discuss.net/9/8903/2009/acpd-9-8903-2009.pdf 8903 8941 2009-04-03 BrO, blizzards, and drivers of polar tropospheric ozone depletion events A. E. Jones aejo@bas.ac.uk P. S. Anderson M. Begoin N. Brough M. A. Hutterli G. J. Marshall A. Richter H. K. Roscoe E. W. Wolff British Antarctic Survey, Natural Environment Research Council, High Cross, Madingley Road, Cambridge, CB3 0ET, UK Institute of Environmental Physics, University of Bremen, Otto-Hahn-Allee 1, 28359 Bremen, Germany The source of bromine that drives polar boundary layer ozone depletion events (ODEs) is still open to some debate. 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