There is strong variation in ozone content in the stratosphere (and the upper troposphere) between 30 ° and 60 ° south with large anomalies south of Australia and in the East Pacific. (wattsupwiththat.com)
Periodic change in 200hPa temperature in response to changing ozone content and changing short wave radiation change ice cloud density and prevalence. (wattsupwiththat.com)
The key studies for MARCI center on daily monitoring of dust storms, polar cloud formation, and variations in ozone content of the atmosphere. (msss.com)