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

Supplement

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

Data sets

A High Speed Particle Phase Discriminator (PPD-HS) for the classification of airborne particles, as tested in a continuous flow diffusion chamber F. Mahrt, J. Wieder, R. Dietlicher, H. R. Smith, C. Stopford, and Z. A. Kanji https://doi.org/10.3929/ethz-b-000313787

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.