Articles | Volume 21, issue 10
Atmos. Chem. Phys., 21, 8213–8232, 2021
https://doi.org/10.5194/acp-21-8213-2021

Special issue: WISE: Wave-driven isentropic exchange in the extratropical...

Special issue: The Modular Earth Submodel System (MESSy) (ACP/GMD inter-journal...

Atmos. Chem. Phys., 21, 8213–8232, 2021
https://doi.org/10.5194/acp-21-8213-2021

Research article 27 May 2021

Research article | 27 May 2021

Pollution trace gases C2H6, C2H2, HCOOH, and PAN in the North Atlantic UTLS: observations and simulations

Gerald Wetzel et al.

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Short summary
Measurements of the pollutants C2H6, C2H2, HCOOH, and PAN were performed in the North Atlantic UTLS region with the airborne limb imager GLORIA in 2017. Enhanced amounts of these species were detected in the upper troposphere and even in the lowermost stratosphere (PAN). Main sources of these gases are forest fires in North America and anthropogenic pollution in South Asia. Simulations of EMAC and CAMS are qualitatively able to reproduce the measured data but underestimate the absolute amounts.
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