Articles | Volume 20, issue 21
Atmos. Chem. Phys., 20, 12813–12851, 2020
https://doi.org/10.5194/acp-20-12813-2020
Atmos. Chem. Phys., 20, 12813–12851, 2020
https://doi.org/10.5194/acp-20-12813-2020

Research article 05 Nov 2020

Research article | 05 Nov 2020

Detection and attribution of wildfire pollution in the Arctic and northern midlatitudes using a network of Fourier-transform infrared spectrometers and GEOS-Chem

Erik Lutsch et al.

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Latest update: 17 Sep 2021
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Short summary
This paper describes the use of a network of 10 Arctic and midlatitude ground-based FTIR measurement sites to detect enhancements of the wildfire tracers carbon monoxide, hydrogen cyanide, and ethane from 2003 to 2018. A tagged CO GEOS-Chem simulation is used for source attribution and to evaluate the relative contribution of CO sources to the FTIR measurements. The use of FTIR measurements allowed for the emission ratios of hydrogen cyanide and ethane to be quantified.
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