Articles | Volume 18, issue 15
Atmos. Chem. Phys., 18, 11289–11301, 2018
https://doi.org/10.5194/acp-18-11289-2018
Atmos. Chem. Phys., 18, 11289–11301, 2018
https://doi.org/10.5194/acp-18-11289-2018

Research article 13 Aug 2018

Research article | 13 Aug 2018

Formation and evolution of tar balls from northwestern US wildfires

Arthur J. Sedlacek III et al.

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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Arthur Sedlacek on behalf of the Authors (12 May 2018)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (20 May 2018) by Manvendra K. Dubey
RR by Anonymous Referee #2 (27 Jun 2018)
RR by Anonymous Referee #1 (28 Jun 2018)
ED: Publish subject to minor revisions (review by editor) (29 Jun 2018) by Manvendra K. Dubey
AR by Anna Wenzel on behalf of the Authors (03 Jul 2018)  Author's response
ED: Publish as is (12 Jul 2018) by Manvendra K. Dubey
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Short summary
This paper presents the first direct atmospheric observations of the formation and evolution of tar balls (TBs) in forest fires collected during the Department of Energy’s Biomass Burning Observation Project (BBOP). We quantify, for the first time, the TB mass fraction in the BB plumes and show that this mass fraction increases from less than 1 % to 50 % within the first couple of hours of plume aging. Using Mie theory we find that TBs are consistent with being weak light absorbers.
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