Articles | Volume 21, issue 4
Atmos. Chem. Phys., 21, 2693–2723, 2021
https://doi.org/10.5194/acp-21-2693-2021
Atmos. Chem. Phys., 21, 2693–2723, 2021
https://doi.org/10.5194/acp-21-2693-2021

Research article 23 Feb 2021

Research article | 23 Feb 2021

A global model perturbed parameter ensemble study of secondary organic aerosol formation

Kamalika Sengupta et al.

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Short summary
Global models consistently underestimate atmospheric secondary organic aerosol (SOA), which has significant climatic implications. We use a perturbed parameter model ensemble and ground-based observations to reduce the uncertainty in modelling SOA formation from oxidation of volatile organic compounds. We identify plausible parameter spaces for the yields of extremely low-volatility, low-volatility, and semi-volatile organic compounds based on model–observation match for three key model outputs.
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