Articles | Volume 21, issue 19
Atmos. Chem. Phys., 21, 14671–14686, 2021

Special issue: Ice nucleation in the boreal atmosphere

Atmos. Chem. Phys., 21, 14671–14686, 2021

Research article 05 Oct 2021

Research article | 05 Oct 2021

Two-year statistics of columnar-ice production in stratiform clouds over Hyytiälä, Finland: environmental conditions and the relevance to secondary ice production

Haoran Li et al.

Data sets

Hyytiala W-band cloud radar 2017–2019 Dmitri Moisseev

con-iglo-12-23, icon-iglo-36-47, gdas1 model data; 2018-02-01 to 2020-04-30; from Hyytiälä CLU

Model code and software

Hyytiala W-band radar spectra data processing tool Haoran Li

Short summary
In natural clouds, ice-nucleating particles are expected to be rare above –10 °C. In the current paper, we found that the formation of ice columns is frequent in stratiform clouds and is associated with increased precipitation intensity and liquid water path. In single-layer shallow clouds, the production of ice columns was attributed to secondary ice production, despite the rime-splintering process not being expected to take place in such clouds.
Final-revised paper