Articles | Volume 20, issue 23
Atmos. Chem. Phys., 20, 14889–14901, 2020
https://doi.org/10.5194/acp-20-14889-2020
Atmos. Chem. Phys., 20, 14889–14901, 2020
https://doi.org/10.5194/acp-20-14889-2020

Research article 03 Dec 2020

Research article | 03 Dec 2020

Application of holography and automated image processing for laboratory experiments on mass and fall speed of small cloud ice crystals

Maximilian Weitzel et al.

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The properties of ice crystals smaller than 150 µm in diameter were investigated in a cold-room laboratory using digital holography and microscopy. Automated image processing has been used to determine the track of falling ice crystals, and collected crystals were melted and scanned under a microscope to infer particle mass. A parameterization relating particle size and mass was determined which describes ice crystals in this size range more accurately than existing relationships.
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