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

Hayden, Katherine; Li, Shao-Meng; Makar, Paul; Liggio, John; Moussa, Samar G.; Akingunola, Ayodeji; McLaren, Robert; Staebler, Ralf M.; Darlington, Andrea; O'Brien, Jason; Zhang, Junhua; Wolde, Mengistu; Zhang, Leiming

doi:https://doi.org/10.5194/acp-21-8377-2021

Articles | Volume 21, issue 11

https://doi.org/10.5194/acp-21-8377-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-21-8377-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 21, issue 11

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

Supplement

https://doi.org/10.5194/acp-21-8377-2021-supplement

Data sets

Monitoring air quality in Alberta oil sands Government of Canada https://www.canada.ca/en/environment-climate-change/services/oil-sands-monitoring/monitoring-air-quality-alberta-oil-sands.html

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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.