High ice water content at low radar reflectivity near deep convection &ndash; Part 2: Evaluation of microphysical pathways in updraft parcel simulations

Ackerman, A. S.; Fridlind, A. M.; Grandin, A.; Dezitter, F.; Weber, M.; Strapp, J. W.; Korolev, A. V.

doi:https://doi.org/10.5194/acp-15-11729-2015

Articles | Volume 15, issue 20

https://doi.org/10.5194/acp-15-11729-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-15-11729-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 15, issue 20

Research article

|

22 Oct 2015

Research article |

| 22 Oct 2015

High ice water content at low radar reflectivity near deep convection – Part 2: Evaluation of microphysical pathways in updraft parcel simulations

A. S. Ackerman, A. M. Fridlind, A. Grandin, F. Dezitter, M. Weber, J. W. Strapp, and A. V. Korolev

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Final revised paper (published on 22 Oct 2015)
Preprint (discussion started on 17 Jun 2015)
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Status: closed

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

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RC C5096: 'High ice water content at low radar reflectivity near deep convection: Part II. Evaluation of microphysical pathways in updraft parcel simulations', David Mitchell, 21 Jul 2015
- AC C7539: 'author response to referee 1', Andrew Ackerman, 02 Oct 2015
RC C5647: 'High ice water content at low radar reflectivity near deep convection: Part II. Evaluation of microphysical pathways in updraft parcel simulations', Anonymous Referee #2, 05 Aug 2015
- AC C7540: 'author response to referee 2', Andrew Ackerman, 02 Oct 2015

Peer-review completion

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

AR by Andrew Ackerman on behalf of the Authors (04 Oct 2015) Author's response Manuscript

ED: Publish as is (12 Oct 2015) by Timothy Garrett

AR by Andrew Ackerman on behalf of the Authors (13 Oct 2015) Manuscript

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Short summary

An updraft parcel model with size-resolved microphysics is used to investigate microphysical pathways leading to ice water content > 2 g m-3 with mass median area-equivalent diameter of 200-300 micron reported at ~11 km in tropical deep convection. Parcel simulations require substantial source of small crystals at temperatures > ~-10 deg C growing by vapor deposition. Warm rain in weaker updrafts surprisingly leads to greater ice mass owing to reduced competition for available water vapor.