Articles | Volume 20, issue 14
Atmos. Chem. Phys., 20, 8691–8708, 2020
https://doi.org/10.5194/acp-20-8691-2020
Atmos. Chem. Phys., 20, 8691–8708, 2020
https://doi.org/10.5194/acp-20-8691-2020
Research article
22 Jul 2020
Research article | 22 Jul 2020

Analysis of 24 years of mesopause region OH rotational temperature observations at Davis, Antarctica – Part 2: Evidence of a quasi-quadrennial oscillation (QQO) in the polar mesosphere

W. John R. French et al.

Viewed

Total article views: 2,052 (including HTML, PDF, and XML)
HTML PDF XML Total Supplement BibTeX EndNote
1,651 375 26 2,052 190 23 22
  • HTML: 1,651
  • PDF: 375
  • XML: 26
  • Total: 2,052
  • Supplement: 190
  • BibTeX: 23
  • EndNote: 22
Views and downloads (calculated since 05 Feb 2020)
Cumulative views and downloads (calculated since 05 Feb 2020)

Viewed (geographical distribution)

Total article views: 2,025 (including HTML, PDF, and XML) Thereof 2,023 with geography defined and 2 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 

Cited

Latest update: 15 May 2022
Short summary
We explore a quasi-quadrennial oscillation (QQO; 3–4 K amplitude, ~ 4-year period) in mesopause region temperatures observed in 24 years of hydroxyl airglow measurements over Davis, Antarctica (68° S, 78° E). Correlation and composite analysis using meteorological reanalysis and satellite data reveals complex patterns on the QQO timescale in both hemispheres. Modulation of the meridional circulation, linked to the propagation of gravity waves, plays a significant role in producing the QQO response.
Altmetrics
Final-revised paper
Preprint