Articles | Volume 15, issue 13
https://doi.org/10.5194/acp-15-7537-2015
https://doi.org/10.5194/acp-15-7537-2015
Research article
 | 
13 Jul 2015
Research article |  | 13 Jul 2015

The role of blowing snow in the activation of bromine over first-year Antarctic sea ice

R. M. Lieb-Lappen and R. W. Obbard

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Short summary
This work analyzes the chemical composition of blowing snow collected over first-year Antarctic sea ice to assess its role in bromine activation during the polar sunrise. We found lofted snow to be depleted in Br- relative to Cl- by proportionally increasing amounts with height. This is the first study to use field data to substantiate modeling results implicating blowing snow as the location for initial halogen activation. We also found lofted snow to be depleted in SO4 and enriched in NO3.
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