Articles | Volume 15, issue 3
https://doi.org/10.5194/acp-15-1161-2015
https://doi.org/10.5194/acp-15-1161-2015
Research article
 | 
02 Feb 2015
Research article |  | 02 Feb 2015

Use of a global model to understand speciated atmospheric mercury observations at five high-elevation sites

P. Weiss-Penzias, H. M. Amos, N. E. Selin, M. S. Gustin, D. A. Jaffe, D. Obrist, G.-R. Sheu, and A. Giang

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Short summary
Speciated atmospheric Hg measurements from five high-elevation sites were compared with a global mercury model. The comparison confirmed that reactive mercury is formed in dry free tropospheric air from the oxidation of elemental Hg, more so in the summer than in other seasons. Simulations run with OH-O3 oxidation instead of the Br oxidation mechanism compared more closely with observations at desert sites, suggesting future simulations should include multiple reaction mechanisms simultaneously.
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