A high-speed particle phase discriminator (PPD-HS) for the classification of airborne particles, as tested in a continuous flow diffusion chamber

Mahrt, Fabian; Wieder, Jörg; Dietlicher, Remo; Smith, Helen R.; Stopford, Chris; Kanji, Zamin A.

doi:https://doi.org/10.5194/amt-12-3183-2019

Articles | Volume 12, issue 6

https://doi.org/10.5194/amt-12-3183-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/amt-12-3183-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 12, issue 6

Research article

|

14 Jun 2019

Research article |

| 14 Jun 2019

A high-speed particle phase discriminator (PPD-HS) for the classification of airborne particles, as tested in a continuous flow diffusion chamber

Fabian Mahrt, Jörg Wieder, Remo Dietlicher, Helen R. Smith, Chris Stopford, and Zamin A. Kanji

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Final revised paper (published on 14 Jun 2019)
Supplement to the final revised paper
Preprint (discussion started on 22 Feb 2019)
Supplement to the preprint

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Referee comments', Anonymous Referee #1, 28 Feb 2019
- AC1: 'Answers to RC1', Fabian Mahrt, 23 May 2019
RC2: 'A High Speed Particle Phase Discriminator (PPD-HS) for the classification of airborne particles, as tested in a continuous flow diffusion chamber by Mahrt et al.', Anonymous Referee #2, 02 Apr 2019
- AC2: 'Answers to RC2', Fabian Mahrt, 23 May 2019

Peer-review completion

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

AR by Fabian Mahrt on behalf of the Authors (23 May 2019) Author's response Manuscript

ED: Publish subject to technical corrections (24 May 2019) by Charles Brock

AR by Fabian Mahrt on behalf of the Authors (25 May 2019) Author's response Manuscript

Short summary

A new instrument, the High Speed Particle Phase Discriminator (PPD-HS), is presented, with the goal of quantifying liquid and ice fraction in conditions relevant for mixed-phase clouds. PPD-HS captures the near-forward spatial intensity distribution of scattered light on a single particle basis. Symmetry analysis of the scattering pattern is used to determine the shape of the particles, with cloud droplets and ice crystals producing symmetrical and asymmetrical scattering patterns, respectively.