Nonlinear forcing mechanisms of the migrating terdiurnal solar tide and their impact on the zonal mean circulation

Lilienthal, Friederike; Jacobi, Christoph

doi:https://doi.org/10.5194/angeo-37-943-2019

Articles | Volume 37, issue 5

https://doi.org/10.5194/angeo-37-943-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Vertical coupling in the atmosphere–ionosphere system

https://doi.org/10.5194/angeo-37-943-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 37, issue 5

Regular paper

|

10 Oct 2019

Regular paper |

| 10 Oct 2019

Nonlinear forcing mechanisms of the migrating terdiurnal solar tide and their impact on the zonal mean circulation

Friederike Lilienthal and Christoph Jacobi

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Final revised paper (published on 10 Oct 2019)
Supplement to the final revised paper
Preprint (discussion started on 01 Apr 2019)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Nonlinear forcing mechanisms of the terdiurnal solar tide and their impact on the zonal mean circulation', Anonymous Referee #1, 14 Jun 2019
- AC1: 'Response to anonymous Referee #1', Friederike Lilienthal, 14 Jul 2019
RC2: 'Interactive comment on “Nonlinear forcing mechanisms of the terdiurnal solar tide and their impact on the zonal mean circulation” by Friederike Lilienthal and Christoph Jacobi', Anonymous Referee #2, 17 Jun 2019
- AC2: 'Response to anonymous Referee #2', Friederike Lilienthal, 14 Jul 2019

Peer-review completion

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

ED: Publish subject to minor revisions (review by editor) (24 Jul 2019) by Petra Koucka Knizova

AR by Friederike Lilienthal on behalf of the Authors (13 Aug 2019) Author's response Manuscript

ED: Publish as is (05 Sep 2019) by Petra Koucka Knizova

AR by Friederike Lilienthal on behalf of the Authors (16 Sep 2019) Manuscript

Short summary

We analyzed the forcing mechanisms of the migrating terdiurnal solar tide in the middle atmosphere, focusing the impact on the zonal mean circulation. We show that the primary solar forcing is the most dominant one but secondary wave–wave interactions also contribute in the lower thermosphere region. We further demonstrate that small-scale gravity waves can strongly and irregularly influence the amplitude of the terdiurnal tide as well as the background circulation in the thermosphere.