Articles | Volume 15, issue 23
Research article
02 Dec 2015
Research article |  | 02 Dec 2015

Boundary layer new particle formation over East Antarctic sea ice – possible Hg-driven nucleation?

R. S. Humphries, R. Schofield, M. D. Keywood, J. Ward, J. R. Pierce, C. M. Gionfriddo, M. T. Tate, D. P. Krabbenhoft, I. E. Galbally, S. B. Molloy, A. R. Klekociuk, P. V. Johnston, K. Kreher, A. J. Thomas, A. D. Robinson, N. R. P. Harris, R. Johnson, and S. R. Wilson


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 Ruhi Humphries on behalf of the Authors (07 Oct 2015)
ED: Referee Nomination & Report Request started (28 Oct 2015) by Peter DeCarlo
RR by Anonymous Referee #2 (11 Nov 2015)
ED: Publish subject to technical corrections (11 Nov 2015) by Peter DeCarlo
AR by Ruhi Humphries on behalf of the Authors (18 Nov 2015)  Author's response   Manuscript 
Short summary
An atmospheric new particle formation event that was observed in the pristine East Antarctic pack ice during a springtime voyage in 2012 is characterised in terms of formation and growth rates. Known nucleation mechanisms (e.g. those involving sulfate, iodine and organics) were unable to explain observations; however, correlations with total gaseous mercury were found, leading to the suggestion of a possible mercury-driven nucleation mechanism not previously described.
Final-revised paper