Articles | Volume 20, issue 4
Atmos. Chem. Phys., 20, 2057–2072, 2020
https://doi.org/10.5194/acp-20-2057-2020

Special issue: TROPOMI on Sentinel-5 Precursor: first year in operation (AMT/ACP...

Atmos. Chem. Phys., 20, 2057–2072, 2020
https://doi.org/10.5194/acp-20-2057-2020
Research article
25 Feb 2020
Research article | 25 Feb 2020

Unexpected long-range transport of glyoxal and formaldehyde observed from the Copernicus Sentinel-5 Precursor satellite during the 2018 Canadian wildfires

Leonardo M. A. Alvarado et al.

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Latest update: 01 Dec 2022
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Short summary
We present CHOCHO and HCHO columns retrieved from measurements by TROPOMI. Elevated amounts of CHOCHO and HCHO are observed during the fire season in BC, Canada, where a large number of fires occurred in 2018. CHOCHO and HCHO plumes from individual fires are observed in air masses travelling over distances of up to 1500 km. Comparison with FLEXPART simulations with different lifetimes shows that effective lifetimes of 20 h and more are needed to explain the observations.
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