Analysis of 24 years of mesopause region OH rotational temperature observations at Davis, Antarctica – Part 1: long-term trends

French, W. John R.; Mulligan, Frank J.; Klekociuk, Andrew R.

doi:https://doi.org/10.5194/acp-20-6379-2020

Articles | Volume 20, issue 11

https://doi.org/10.5194/acp-20-6379-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-20-6379-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 11

Research article

|

04 Jun 2020

Research article |

| 04 Jun 2020

Analysis of 24 years of mesopause region OH rotational temperature observations at Davis, Antarctica – Part 1: long-term trends

W. John R. French, Frank J. Mulligan, and Andrew R. Klekociuk

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Final revised paper (published on 04 Jun 2020)
Preprint (discussion started on 10 Jan 2020)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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RC1: 'Review of "Analysis of 24 years of mesopause region OH rotational temperature observations at Davis, Antarctica. Part 1: Long-term trends" by French et al.', Anonymous Referee #2, 04 Feb 2020
- AC2: 'Response to RC1', John French, 09 Apr 2020
RC2: 'Manuscript acp-2019-1001', Anonymous Referee #1, 07 Feb 2020
- AC1: 'Response to RC2', John French, 06 Apr 2020

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by John French on behalf of the Authors (14 Apr 2020) Author's response Manuscript

ED: Publish as is (17 Apr 2020) by Franz-Josef Lübken

AR by John French on behalf of the Authors (20 Apr 2020)

Short summary

In this study, we analyse 24 years of atmospheric temperatures from the mesopause region (~87 km altitude) derived from ground-based spectrometer observations of hydroxyl airglow at Davis station, Antarctica (68° S, 78° E). These data are used to quantify the effect of the solar cycle and the long-term trend due to increasing greenhouse gas emissions on the atmosphere at this level. A record-low winter-average temperature is reported for 2018 and comparisons are made with satellite observations.