Effect of latitudinally displaced gravity wave forcing in the lower stratosphere on the polar vortex stability

Samtleben, Nadja; Jacobi, Christoph; Pišoft, Petr; Šácha, Petr; Kuchař, Aleš

doi:https://doi.org/10.5194/angeo-37-507-2019

Articles | Volume 37, issue 4

https://doi.org/10.5194/angeo-37-507-2019

© 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-37-507-2019

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

Articles | Volume 37, issue 4

Regular paper

|

03 Jul 2019

Regular paper |

| 03 Jul 2019

Effect of latitudinally displaced gravity wave forcing in the lower stratosphere on the polar vortex stability

Nadja Samtleben, Christoph Jacobi, Petr Pišoft, Petr Šácha, and Aleš Kuchař

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Final revised paper (published on 03 Jul 2019)
Preprint (discussion started on 30 Jan 2019)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Comment on Samtleben et al.', Anonymous Referee #1, 28 Feb 2019
- SC1: 'Answer RV 1', Nadja Samtleben, 14 Mar 2019
- AC1: 'Revision RV 1', Nadja Samtleben, 03 May 2019
RC2: 'Review on Effect of latitudinally displaced gravity wave forcing in the lower stratosphere on the polar vortex stability', Anonymous Referee #2, 01 Apr 2019
- SC2: 'Answer RV 2', Nadja Samtleben, 03 Apr 2019
- AC2: 'Revision RV 2', Nadja Samtleben, 03 May 2019

Peer-review completion

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

ED: Reconsider after major revisions (further review by editor and referees) (20 May 2019) by Kathrin Baumgarten

AR by Nadja Samtleben on behalf of the Authors (27 May 2019) Author's response Manuscript

ED: Referee Nomination & Report Request started (28 May 2019) by Kathrin Baumgarten

RR by Anonymous Referee #1 (07 Jun 2019)

ED: Publish subject to technical corrections (07 Jun 2019) by Kathrin Baumgarten

AR by Nadja Samtleben on behalf of the Authors (13 Jun 2019) Author's response Manuscript

Short summary

Simulations of locally breaking gravity wave hot spots in the stratosphere show a suppression of wave propagation at midlatitudes, which is partly compensated for by additional wave propagation through the polar region. This leads to a displacement of the polar vortex towards lower latitudes. The effect is highly dependent on the position of the artificial gravity wave forcing. It is strongest (weakest) for hot spots at lower to middle latitudes (higher latitudes).