Intra-annual variations of spectrally resolved gravity wave activity in the upper mesosphere/lower thermosphere (UMLT) region

Sedlak, René; Zuhr, Alexandra; Schmidt, Carsten; Wüst, Sabine; Bittner, Michael; Didebulidze, Goderdzi G.; Price, Colin

doi:https://doi.org/10.5194/amt-13-5117-2020

Articles | Volume 13, issue 9

https://doi.org/10.5194/amt-13-5117-2020

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

https://doi.org/10.5194/amt-13-5117-2020

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

Articles | Volume 13, issue 9

Research article

|

29 Sep 2020

Research article |

| 29 Sep 2020

Intra-annual variations of spectrally resolved gravity wave activity in the upper mesosphere/lower thermosphere (UMLT) region

René Sedlak, Alexandra Zuhr, Carsten Schmidt, Sabine Wüst, Michael Bittner, Goderdzi G. Didebulidze, and Colin Price

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Final revised paper (published on 29 Sep 2020)
Preprint (discussion started on 14 Apr 2020)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Comment on amt-2020-14', Anonymous Referee #2, 22 Apr 2020
- AC1: 'Final Response', René Sedlak, 06 Jul 2020
RC2: 'amt-2020-14 comment', Anonymous Referee #1, 06 May 2020
- AC1: 'Final Response', René Sedlak, 06 Jul 2020

Peer-review completion

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

AR by René Sedlak on behalf of the Authors (06 Jul 2020) Author's response Manuscript

ED: Referee Nomination & Report Request started (20 Jul 2020) by Christian von Savigny

RR by Anonymous Referee #2 (04 Aug 2020)

ED: Publish subject to minor revisions (review by editor) (04 Aug 2020) by Christian von Savigny

AR by René Sedlak on behalf of the Authors (05 Aug 2020) Author's response Manuscript

ED: Publish as is (18 Aug 2020) by Christian von Savigny

Short summary

Gravity wave (GW) activity in the UMLT in the period range 6-480 min is calculated by applying a wavelet analysis to nocturnal temperature time series derived from OH* airglow spectrometers. We analyse measurements from eight different locations at different latitudes. GW activity shows strong period dependence. We find hardly any seasonal variability for periods below 60 min and a semi-annual cycle for periods longer than 60 min that evolves into an annual cycle around a period of 200 min.