Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 20, issue 11
Articles | Volume 20, issue 11
https://doi.org/10.5194/acp-20-6259-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-20-6259-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 20, issue 11
Research article
 | 
02 Jun 2020
Research article |  | 02 Jun 2020

Evidence for energetic particle precipitation and quasi-biennial oscillation modulations of the Antarctic NO2 springtime stratospheric column from OMI observations

Emily M. Gordon, Annika Seppälä, and Johanna Tamminen

Data sets

Kyoto World Data Center for Geomagnetism http://wdc.kugi.kyoto-u.ac.jp/kp

OMI/Aura NO2 Total and Tropospheric Column Daily L2 Global Gridded 0.25 degree x 0.25 degree V3 N. A. Krotkov, L. N. Lamsal, S. V. Marchenko, E. A. Celarier, E. J. Bucsela, W. H. Swartz, J. Joiner, and the OMI core team https://doi.org/10.5067/Aura/OMI/DATA2018

MLS/Aura Level 2 Nitric Acid (HNO3) Mixing Ratio V003, EOS MLS Science Team https://disc.gsfc.nasa.gov/datacollection/ML2HNO3_003.html

MLS/Aura Level 2 Temperature V003 EOS MLS Science Team https://disc.gsfc.nasa.gov/datacollection/ML2T_003.html

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Short summary
The Sun constantly emits high-energy charged particles that produce the ozone destroying chemical NOx in the polar atmosphere. NOx is transported to the stratosphere, where the ozone layer is. Satellite observations show that the NOx gases remain in the atmosphere longer than previously reported. This is influenced by the strength of atmospheric large-scale dynamics, suggesting that there are specific times when this type of solar influence on the Antarctic atmosphere becomes more pronounced.
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