Articles | Volume 18, issue 8
Atmos. Chem. Phys., 18, 5921–5930, 2018
https://doi.org/10.5194/acp-18-5921-2018
Atmos. Chem. Phys., 18, 5921–5930, 2018
https://doi.org/10.5194/acp-18-5921-2018

Research article 27 Apr 2018

Research article | 27 Apr 2018

Experimental study of H2SO4 aerosol nucleation at high ionization levels

Maja Tomicic et al.

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Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Maja Tomicic on behalf of the Authors (02 Mar 2018)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (11 Mar 2018) by Christopher Hoyle
RR by Anonymous Referee #1 (21 Mar 2018)
ED: Publish as is (01 Apr 2018) by Christopher Hoyle
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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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