Articles | Volume 18, issue 21
Atmos. Chem. Phys., 18, 15623–15641, 2018
https://doi.org/10.5194/acp-18-15623-2018

Special issue: The Polar Stratosphere in a Changing Climate (POLSTRACC) (ACP/AMT...

Atmos. Chem. Phys., 18, 15623–15641, 2018
https://doi.org/10.5194/acp-18-15623-2018

Research article 30 Oct 2018

Research article | 30 Oct 2018

Widespread polar stratospheric ice clouds in the 2015–2016 Arctic winter – implications for ice nucleation

Christiane Voigt et al.

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Latest update: 28 Sep 2021
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Short summary
The 2015–2016 stratospheric winter was the coldest in the 36-year climatological data record. The extreme conditions promoted the formation of persistent Arctic polar stratospheric ice clouds. An extended ice PSC detected by airborne lidar in January 2016 shows a second mode with higher particle depolarization ratios. Back-trajectories from the high-depol ice matched to CALIOP PSC curtains provide evidence for ice nucleation on NAT. The novel data consolidate our understanding of PSC formation.
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