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Volume 10, issue 9 | Copyright

Special issue: The CERN CLOUD experiment (ACP/AMT inter-journal SI)

Atmos. Meas. Tech., 10, 3231-3248, 2017
https://doi.org/10.5194/amt-10-3231-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 04 Sep 2017

Research article | 04 Sep 2017

Intercomparison study and optical asphericity measurements of small ice particles in the CERN CLOUD experiment

Leonid Nichman et al.
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Optical probes are frequently used for the detection of cloud particles. The detected microphysical properties may affect particle growth and accretion mechanisms and the light scattering properties of cirrus clouds. In the CLOUD chamber study at CERN, we compared four optical measurement techniques. We show that shape derivation alone is not sufficient to determine the phase of the small cloud particles. None of the instruments were able to unambiguously determine the phase of small particles.
Optical probes are frequently used for the detection of cloud particles. The detected...
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