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

Alvarado, Leonardo M. A.; Richter, Andreas; Vrekoussis, Mihalis; Hilboll, Andreas; Kalisz Hedegaard, Anna B.; Schneising, Oliver; Burrows, John P.

doi:https://doi.org/10.5194/acp-20-2057-2020

Articles | Volume 20, issue 4

https://doi.org/10.5194/acp-20-2057-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

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

https://doi.org/10.5194/acp-20-2057-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 4

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, Andreas Richter, Mihalis Vrekoussis, Andreas Hilboll, Anna B. Kalisz Hedegaard, Oliver Schneising, and John P. Burrows

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Final revised paper (published on 25 Feb 2020)
Preprint (discussion started on 29 Aug 2019)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'Review Alvarado et al 2019', Anonymous Referee #1, 10 Sep 2019
- AC1: 'Author's reply to comments from referee #1', Leonardo Alvarado Bonilla, 14 Dec 2019
RC2: 'Review Alvarado et al 2019', Anonymous Referee #2, 25 Sep 2019
- AC2: 'Author's reply to comments from referee #2', Leonardo Alvarado Bonilla, 14 Dec 2019

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Leonardo Alvarado Bonilla on behalf of the Authors (14 Dec 2019) Author's response Manuscript

ED: Publish subject to technical corrections (21 Jan 2020) by Robert McLaren

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.