Geoscientific Model Development
Geoscientific Model Development
GMD
Articles | Volume 11, issue 3
Articles | Volume 11, issue 3
https://doi.org/10.5194/gmd-11-1115-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 3.0 License.
Special issue:
https://doi.org/10.5194/gmd-11-1115-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 11, issue 3
Development and technical paper
 | 
28 Mar 2018
Development and technical paper |  | 28 Mar 2018

Polar boundary layer bromine explosion and ozone depletion events in the chemistry–climate model EMAC v2.52: implementation and evaluation of AirSnow algorithm

Stefanie Falk and Björn-Martin Sinnhuber

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Short summary
Ozone depletion events (ODEs) in the polar boundary layer are observed frequently in spring. ODEs serve as a source of tropospheric BrO at high latitudes. A treatment of bromine release and recycling on sea-ice- and snow-covered surfaces is implemented in global chemistry–climate model EMAC based on a scheme of Toyota et al. (2011). Many aspects of bromine enhancement and associated ODEs are reproduced in both polar regions. Further bromine release mechanisms can now be tested in a global model.
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