Articles | Volume 14, issue 24
Atmos. Chem. Phys., 14, 13661–13679, 2014
https://doi.org/10.5194/acp-14-13661-2014
Atmos. Chem. Phys., 14, 13661–13679, 2014
https://doi.org/10.5194/acp-14-13661-2014
Research article
20 Dec 2014
Research article | 20 Dec 2014

The contribution of plume-scale nucleation to global and regional aerosol and CCN concentrations: evaluation and sensitivity to emissions changes

R. G. Stevens and J. R. Pierce

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Short summary
We implement a parameterization of sub-grid new-particle formation in sulfur-rich plumes (P6) for the first time into a global chemical-transport model with online aerosol microphysics. Compared with previous treatments of sub-grid particle formation, use of the P6 parameterization limits sub-grid particle formation in polluted or low-sunlight regions. We also test the sensitivity of sub-grid particle formation to changes in SO2 or NOx emissions due to emissions controls.
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