Rare temperature histories and cirrus ice number density in a parcel and a one-dimensional model

Murphy, D. M.

doi:https://doi.org/10.5194/acp-14-13013-2014

Articles | Volume 14, issue 23

https://doi.org/10.5194/acp-14-13013-2014

© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-14-13013-2014

© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 14, issue 23

Research article

|

09 Dec 2014

Research article |

| 09 Dec 2014

Rare temperature histories and cirrus ice number density in a parcel and a one-dimensional model

D. M. Murphy

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Final revised paper (published on 09 Dec 2014)
Preprint (discussion started on 29 Apr 2014)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC C2804: 'referee comment', Eric Jensen, 27 May 2014
- AC C6501: 'Response to review', Daniel Murphy, 03 Sep 2014
RC C5780: 'Review', Anonymous Referee #2, 12 Aug 2014
- AC C6504: 'Response to review', Daniel Murphy, 03 Sep 2014

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Daniel Murphy on behalf of the Authors (03 Sep 2014) Author's response Manuscript

ED: Referee Nomination & Report Request started (12 Sep 2014) by Martina Krämer

RR by Anonymous Referee #2 (06 Oct 2014)

ED: Reconsider after minor revisions (Editor review) (22 Oct 2014) by Martina Krämer

AR by Daniel Murphy on behalf of the Authors (28 Oct 2014) Author's response Manuscript

ED: Publish as is (10 Nov 2014) by Martina Krämer

AR by Daniel Murphy on behalf of the Authors (24 Nov 2014)

Short summary

The properties of cirrus clouds depend on the rate at which air cools as the cloud forms. Small-scale motions in the atmosphere have high rates of cooling. This usually leads to very small ice crystals. However, a few random cooling fluctuations will produce only a few ice crystals. This paper shows that these events are important even if they are rare: they lead to particles that sediment and influence a lot of air. The results show dehydration is less sensitive to details of ice nucleation.