Effect of photochemical self-action of carbon-containing aerosol: Wildfires
- Authors: Konovalov I.B.1, Berezin E.V.1, Beekmann M.2
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Affiliations:
- Institute of Applied Physics
- Laboratoire Inter-Universitaire de Systèmes Atmosphériques
- Issue: Vol 52, No 3 (2016)
- Pages: 263-270
- Section: Article
- URL: https://journals.rcsi.science/0001-4338/article/view/148433
- DOI: https://doi.org/10.1134/S0001433816030063
- ID: 148433
Cite item
Abstract
It has been shown by numerical simulation that the rate of formation of secondary organic aerosols (SOAs) in smoke plumes caused by vegetation and peat fires under real conditions can significantly depend on the aerosol optical thickness (AOT). The AOT determines the photodissociation rate and hydroxyl radical concentration, which in turn determines the rate of SOA generation as a result of oxidation of semivolatile organic compounds. Quantitative analysis has been carried out for the situation that took place in European Russia during the 2010 Russian wildfires. The state-of-the-art 3D chemical transport model is used in this study; the simulations are optimized and validated using the data of monitoring of the particulate matter in the Moscow region and Finland. The findings indicate that it is important to allow for this effect in studies focused on the analysis and prediction of air pollution due to wildfires, as well as climate and weather studies, whose results may depend on the assumptions about the content and properties of atmospheric carbon-containing aerosol.
About the authors
I. B. Konovalov
Institute of Applied Physics
Author for correspondence.
Email: konov@appl.sci-nnov.ru
Russian Federation, ul. Ul’yanova 46, Nizhny Novgorod, 603950
E. V. Berezin
Institute of Applied Physics
Email: konov@appl.sci-nnov.ru
Russian Federation, ul. Ul’yanova 46, Nizhny Novgorod, 603950
M. Beekmann
Laboratoire Inter-Universitaire de Systèmes Atmosphériques
Email: konov@appl.sci-nnov.ru
France, Créteil