Articles | Volume 21, issue 11
https://doi.org/10.5194/acp-21-8377-2021
https://doi.org/10.5194/acp-21-8377-2021
Research article
 | 
02 Jun 2021
Research article |  | 02 Jun 2021

New methodology shows short atmospheric lifetimes of oxidized sulfur and nitrogen due to dry deposition

Katherine Hayden, Shao-Meng Li, Paul Makar, John Liggio, Samar G. Moussa, Ayodeji Akingunola, Robert McLaren, Ralf M. Staebler, Andrea Darlington, Jason O'Brien, Junhua Zhang, Mengistu Wolde, and Leiming Zhang
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Short summary
We developed a method using aircraft measurements to determine lifetimes with respect to dry deposition for oxidized sulfur and nitrogen compounds over the boreal forest in Alberta, Canada. Atmospheric lifetimes were significantly shorter than derived from chemical transport models with differences related to modelled dry deposition velocities. The shorter lifetimes suggest models need to reassess dry deposition treatment and predictions of sulfur and nitrogen in the atmosphere and ecosystems.
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