Articles | Volume 20, issue 8
Atmos. Chem. Phys., 20, 4607–4635, 2020
https://doi.org/10.5194/acp-20-4607-2020
Atmos. Chem. Phys., 20, 4607–4635, 2020
https://doi.org/10.5194/acp-20-4607-2020

Research article 21 Apr 2020

Research article | 21 Apr 2020

Characterization of organic aerosol across the global remote troposphere: a comparison of ATom measurements and global chemistry models

Alma Hodzic et al.

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Latest update: 27 Jul 2021
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Short summary
Organic aerosol (OA) is a key source of uncertainty in aerosol climate effects. We present the first pole-to-pole OA characterization during the NASA Atmospheric Tomography aircraft mission. OA has a strong seasonal and zonal variability, with the highest levels in summer and over fire-influenced regions and the lowest ones in the southern high latitudes. We show that global models predict the OA distribution well but not the relative contribution of OA emissions vs. chemical production.
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