Articles | Volume 20, issue 14
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, Andrew R. Klekociuk, and Frank J. Mulligan


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by John French on behalf of the Authors (15 May 2020)  Author's response
ED: Referee Nomination & Report Request started (26 May 2020) by Franz-Josef Lübken
ED: Publish as is (10 Jun 2020) by Franz-Josef Lübken
AR by John French on behalf of the Authors (11 Jun 2020)  Author's response    Manuscript
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.
Final-revised paper