CALIOP V4 cloud thermodynamic phase assignment  and the impact of near-nadir viewing angles

Avery, Melody A.; Ryan, Robert A.; Getzewich, Brian J.; Vaughan, Mark A.; Winker, David M.; Hu, Yongxiang; Garnier, Anne; Pelon, Jacques; Verhappen, Carolus A.

doi:https://doi.org/10.5194/amt-13-4539-2020

Articles | Volume 13, issue 8

https://doi.org/10.5194/amt-13-4539-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

CALIPSO version 4 algorithms and data products

https://doi.org/10.5194/amt-13-4539-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 13, issue 8

Research article

|

25 Aug 2020

Research article |

| 25 Aug 2020

CALIOP V4 cloud thermodynamic phase assignment and the impact of near-nadir viewing angles

Melody A. Avery, Robert A. Ryan, Brian J. Getzewich, Mark A. Vaughan, David M. Winker, Yongxiang Hu, Anne Garnier, Jacques Pelon, and Carolus A. Verhappen

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Final revised paper (published on 25 Aug 2020)
Preprint (discussion started on 29 Jan 2020)

Interactive discussion

Status: closed

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

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RC1: 'Review of manuscript by Avery et al.', Anonymous Referee #1, 23 Mar 2020
- AC1: 'Response to Reviewer 1', Melody Avery, 20 May 2020
RC2: 'Comment on Avery et al.'s paper regarding CALIOP V4 Cloud Phase and Lidar Viewing Angle', Anonymous Referee #2, 22 Apr 2020
- AC2: 'Responses to Reviewer 2', Melody Avery, 20 May 2020

Peer-review completion

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

AR by Melody Avery on behalf of the Authors (20 May 2020) Author's response Manuscript

ED: Publish as is (04 Jun 2020) by James Campbell

AR by Melody Avery on behalf of the Authors (13 Jun 2020)

Short summary

CALIOP data users will find more cloud layers detected in V4, with edges that extend further than in V3, for an increase in total atmospheric cloud volume of 6 %–9 % for high-confidence cloud phases and 1 %–2 % for all cloudy bins, including cloud fringes and unknown cloud phases. In V4 there are many fewer cloud layers identified as horizontally oriented ice, particularly in the 3° off-nadir view. Depolarization at 532 nm is the predominant parameter determining cloud thermodynamic phase.