Articles | Volume 15, issue 6
Research article
24 Mar 2015
Research article |  | 24 Mar 2015

Energetic particle induced intra-seasonal variability of ozone inside the Antarctic polar vortex observed in satellite data

T. Fytterer, M. G. Mlynczak, H. Nieder, K. Pérot, M. Sinnhuber, G. Stiller, and J. Urban


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Saved (final revised paper)

Latest update: 24 Apr 2024
Short summary
Energetic particles from the sun produce NOx (=N+NO+NO2) in the mesosphere/lower thermosphere. The NOx can be transported downward in the stratosphere during polar winter where NOx eventually depletes O3. This entire chain is the so-called energetic particle precipitation (EPP) indirect effect. Here we show downward propagating negative stratospheric O3 anomalies during Antarctic polar winter. The O3 anomalies are caused by geomagnetic activity and show strong hints of the EPP indirect effect.
Final-revised paper