Articles | Volume 17, issue 10
Atmos. Chem. Phys., 17, 6291–6303, 2017
Atmos. Chem. Phys., 17, 6291–6303, 2017

Research article 23 May 2017

Research article | 23 May 2017

Evaporating brine from frost flowers with electron microscopy and implications for atmospheric chemistry and sea-salt aerosol formation

Xin Yang et al.


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Dominik Heger on behalf of the Authors (29 Mar 2017)  Author's response    Manuscript
ED: Publish as is (18 Apr 2017) by Thorsten Bartels-Rausch
Short summary
A unique environmental electron microscope was used for monitoring the evaporation of salty frost flowers. We observe a cohesive villous brine surface layer facilitating the formation of NaCl microcrystals at temperatures below −10°C as the brine oversaturation is achieved. This finding confirms the increased surface area and thus also the enhanced heterogeneous reactivity; however, no support for the easiness of fragmentation to produce aerosols can be provided.
Final-revised paper