Articles | Volume 18, issue 18
Atmos. Chem. Phys., 18, 13687–13702, 2018
https://doi.org/10.5194/acp-18-13687-2018
Atmos. Chem. Phys., 18, 13687–13702, 2018
https://doi.org/10.5194/acp-18-13687-2018

Research article 27 Sep 2018

Research article | 27 Sep 2018

Surface roughness during depositional growth and sublimation of ice crystals

Jens Voigtländer et al.

Video supplement

Evolution of 2-D light scattering patterns during cyclic ice growth experiment in Fig. 9 C. Chou, J. Voigtländer, and Z. Ulanowski https://doi.org/10.5446/35425

Evolution of 2-D light scattering patterns during cyclic ice growth experiment in Fig. 10 C. Chou, J. Voigtländer, and Z. Ulanowski https://doi.org/10.5446/35426

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Short summary
Surface roughness of ice crystals has recently been acknowledged to strongly influence the radiative properties of cold clouds such as cirrus, but it is unclear how this roughness arises. The study investigates the origins of ice surface roughness under a variety of atmospherically relevant conditions, using a novel method to measure roughness quantitatively. It is found that faster growth leads to stronger roughness. Roughness also increases following repeated growth–sublimation cycles.
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