Articles | Volume 16, issue 14
Atmos. Chem. Phys., 16, 9505–9532, 2016
https://doi.org/10.5194/acp-16-9505-2016
Atmos. Chem. Phys., 16, 9505–9532, 2016
https://doi.org/10.5194/acp-16-9505-2016

Research article 29 Jul 2016

Research article | 29 Jul 2016

Spectroscopic evidence of large aspherical β-NAT particles involved in denitrification in the December 2011 Arctic stratosphere

Wolfgang Woiwode et al.

Data sets

CALIPSO/CALIOP Level 2, Polar Stratospheric Cloud Data, version 1.00 CALIPSO Science Team https://doi.org/10.5067/CALIOP/CALIPSO/CAL_LID_L2_PSCMask-Prov-V1-00_L2-001.00

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Short summary
The analysis of spectral signatures of a polar stratospheric cloud in airborne infrared remote sensing observations in the Arctic in combination with further collocated measurements supports the view that the observed cloud consisted of highly aspherical nitric acid trihydrate particles. A characteristic "shoulder-like" spectral signature may be exploited for identification of large, highly aspherical nitric acid trihydrate particles involved in denitrification of the polar winter stratosphere.
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