Articles | Volume 14, issue 24
Atmos. Chem. Phys., 14, 13661–13679, 2014
Atmos. Chem. Phys., 14, 13661–13679, 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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Subject: Aerosols | Research Activity: Atmospheric Modelling | Altitude Range: Troposphere | Science Focus: Physics (physical properties and processes)
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Cited articles

Adams, P. J. and Seinfeld, J. H.: Predicting global aerosol size distributions in general circulation models, J. Geophys. Res., 107, 1–23, 2002.
Adams, P. J. and Seinfeld, J. H.: Disproportionate impact of particulate emissions on global cloud condensation nuclei concentrations, Geophys. Res. Lett., 30, 1239, 2003.
Albrecht, B.: Aerosols, cloud microphysics, and fractional cloudiness., Science, 245, 1227–1230, 1989.
Arya, S. P.: Air Pollution Meteorology and Dispersion, Oxford University Press, Inc., New York, USA, 1999.
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.
Final-revised paper