Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 18, issue 8
Articles | Volume 18, issue 8
https://doi.org/10.5194/acp-18-5921-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-18-5921-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 8
Research article
 | 
27 Apr 2018
Research article |  | 27 Apr 2018

Experimental study of H2SO4 aerosol nucleation at high ionization levels

Maja Tomicic, Martin Bødker Enghoff, and Henrik Svensmark

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Short summary
A supernova within a distance of about 100 pc from the Earth would increase the cosmic ray flux and thereby the atmospheric ionization. We study the impact of high ion concentrations on aerosol nucleation through experiments. The measurements show that nucleation increases by up to an order of magnitude when the ionization increases from background to supernova levels under fixed concentrations of the nucleating gas. This suggests that a supernova could influence the atmospheric microphysics.
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