Articles | Volume 19, issue 9
https://doi.org/10.5194/acp-19-5771-2019
https://doi.org/10.5194/acp-19-5771-2019
Research article
 | 
03 May 2019
Research article |  | 03 May 2019

The vertical distribution of biomass burning pollution over tropical South America from aircraft in situ measurements during SAMBBA

Eoghan Darbyshire, William T. Morgan, James D. Allan, Dantong Liu, Michael J. Flynn, James R. Dorsey, Sebastian J. O'Shea, Douglas Lowe, Kate Szpek, Franco Marenco, Ben T. Johnson, Stephane Bauguitte, Jim M. Haywood, Joel F. Brito, Paulo Artaxo, Karla M. Longo, and Hugh Coe

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Latest update: 28 Mar 2024
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Short summary
A novel analysis of aerosol and gas-phase vertical profiles shows a marked regional pollution contrast: composition is driven by the fire regime and vertical distribution is driven by thermodynamics. These drivers ought to be well represented in simulations to ensure realistic prediction of climate and air quality impacts. The BC : CO ratio in haze and plumes increases with altitude – long-range transport or fire stage coupled to plume dynamics may be responsible. Further enquiry is advocated.
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