Articles | Volume 23, issue 3
https://doi.org/10.5194/acp-23-1863-2023
https://doi.org/10.5194/acp-23-1863-2023
Research article
 | 
02 Feb 2023
Research article |  | 02 Feb 2023

Particle number concentrations and size distributions in the stratosphere: implications of nucleation mechanisms and particle microphysics

Fangqun Yu, Gan Luo, Arshad Arjunan Nair, Sebastian Eastham, Christina J. Williamson, Agnieszka Kupc, and Charles A. Brock

Data sets

ATom: Merged Atmospheric Chemistry, Trace Gases, and Aerosols, Version 2 S. C. Wofsy, S. Afshar, H. M. Allen, E. C. Apel, E. C. Asher, B. Barletta, J. Bent, H. Bian, B. C. Biggs, D. R. Blake, N. Blake, I. Bourgeois, C. A. Brock, W. H. Brune, J. W. Budney, T. P. Bui, A. Butler, P. Campuzano-Jost, C. S. Chang, M. Chin, R. Commane, G. Correa, J. D. Crounse, P. D. Cullis, B. C. Daube, D. A. Day, J. M. Dean-Day, J. E. Dibb, J. P. DiGangi, G. S. Diskin, M. Dollner, J. W. Elkins, F. Erdesz, A. M. Fiore, C. M. Flynn, K. D. Froyd, D. W. Gesler, S. R. Hall, T. F. Hanisco, R. A. Hannun, A. J. Hills, E. J. Hintsa, A. Hoffman, R. S. Hornbrook, L. G. Huey, S. Hughes, J. L. Jimenez, B. J. Johnson, J. M. Katich, R. F. Keeling, M. J. Kim, A. Kupc, L. R. Lait, K. McKain, R. J. Mclaughlin, S. Meinardi, D. O. Miller, S. A. Montzka, F. L. Moore, E. J. Morgan, D. M. Murphy, L. T. Murray, B. A. Nault, J. A. Neuman, P. A. Newman, J. M. Nicely, X. Pan, W. Paplawsky, J. Peischl, M. J. Prather, D. J. Price, E. A. Ray, J. M. Reeves, M. Richardson, A. W. Rollins, K. H. Rosenlof, T. B. Ryerson, E. Scheuer, G. P. Schill, J. C. Schroder, J. P. Schwarz, J. M. St.Clair, S. D. Steenrod, B. B. Stephens, S. A. Strode, C. Sweeney, D. Tanner, A. P. Teng, A. B. Thames, C. R. Thompson, K. Ullmann, P. R. Veres, N. L. Wagner, A. Watt, R. Weber, B. B. Weinzierl, P. O. Wennberg, C. J. Williamson, J. C. Wilson, G. M. Wolfe, C. T. Woods, L. H. Zeng, and N. Vieznor https://daac.ornl.gov/ ATOM/campaign/

Particle number concentrations and size distributions in the stratosphere: Implications of nucleation mechanisms and particle microphysics F. Yu https://doi.org/10.5281/zenodo.6909944

Model code and software

geoschem/geoschem: GEOS-Chem 12.6.0 The International GEOS-Chem User Community https://doi.org/10.5281/zenodo.3507501

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Short summary
Particle number concentrations and size distributions in the stratosphere are studied through model simulations and comparisons with measurements. The nucleation scheme used in most of the solar geoengineering modeling studies overpredicts the nucleation rates and particle number concentrations in the stratosphere. The model based on updated nucleation schemes captures reasonably well some aspects of particle size distributions but misses some features. The possible reasons are discussed.
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