Articles | Volume 16, issue 19
Research article
04 Oct 2016
Research article |  | 04 Oct 2016

What controls the low ice number concentration in the upper troposphere?

Cheng Zhou, Joyce E. Penner, Guangxing Lin, Xiaohong Liu, and Minghuai Wang


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 C. Zhou on behalf of the Authors (16 May 2016)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (20 May 2016) by Martina Krämer
RR by Anonymous Referee #1 (06 Jun 2016)
RR by Anonymous Referee #2 (18 Jul 2016)
ED: Reconsider after major revisions (04 Aug 2016) by Martina Krämer
AR by C. Zhou on behalf of the Authors (12 Sep 2016)  Author's response    Manuscript
ED: Publish as is (21 Sep 2016) by Martina Krämer
Short summary
We examined the different ice nucleation parameterization factors that affect the simulated ice number concentrations in cirrus clouds in the upper troposphere using the CAM5 model. We examined the effect from three different updraft velocities (from low to high), two different water vapour accommodation coefficients (α = 0.1 or 1), the effect of including vapour deposition onto pre-existing ice particles during ice nucleation, and the effect of including SOA as heterogeneous ice nuclei.
Final-revised paper