Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 15, issue 22
Articles | Volume 15, issue 22
https://doi.org/10.5194/acp-15-12897-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/acp-15-12897-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 15, issue 22
Research article
 | 
19 Nov 2015
Research article |  | 19 Nov 2015

Impact of particle shape on the morphology of noctilucent clouds

J. Kiliani, G. Baumgarten, F.-J. Lübken, and U. Berger

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Short summary
For the first time the shape of noctilucent cloud particles is analyzed with a 3-D Lagrangian model. Three-color lidar measurements are compared directly to optical modeling of NLC simulations with non-spherical shapes: a mix of elongated and flattened cylindrical ice particles consistent with measurements. Comparison is best if flattened particles form a majority, with mean axis ratio around 2.8. NLCs from cylindrical particles are slightly brighter and consist of fewer but larger ice particle.
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