Propagation of gravity waves and its effects on pseudomomentum flux in a sudden stratospheric warming event

Song, In-Sun; Lee, Changsup; Chun, Hye-Yeong; Kim, Jeong-Han; Jee, Geonhwa; Song, Byeong-Gwon; Bacmeister, Julio T.

doi:https://doi.org/10.5194/acp-20-7617-2020

Articles | Volume 20, issue 12

https://doi.org/10.5194/acp-20-7617-2020

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

https://doi.org/10.5194/acp-20-7617-2020

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

Articles | Volume 20, issue 12

Research article

|

01 Jul 2020

Research article |

| 01 Jul 2020

Propagation of gravity waves and its effects on pseudomomentum flux in a sudden stratospheric warming event

In-Sun Song, Changsup Lee, Hye-Yeong Chun, Jeong-Han Kim, Geonhwa Jee, Byeong-Gwon Song, and Julio T. Bacmeister

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Final revised paper (published on 01 Jul 2020)
Supplement to the final revised paper
Preprint (discussion started on 13 Jan 2020)
Supplement to the preprint

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Comments on "Propagation of gravity waves..." by Song et al.', Anonymous Referee #2, 29 Jan 2020
- AC1: 'Authors' response to reviewer #2's comments', In-Sun Song, 28 Apr 2020
RC2: 'Review of Propagation of gravity waves and its effects on pseudomomentum flux in a sudden stratospheric warming event', Anonymous Referee #1, 12 Feb 2020
- AC2: 'Authors' response to reviewer #1's comments', In-Sun Song, 28 Apr 2020
RC3: 'First review', Anonymous Referee #3, 28 Feb 2020
- AC3: 'Authors' response to reviewer #3's comments', In-Sun Song, 28 Apr 2020

Peer-review completion

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

AR by Anna Wenzel on behalf of the Authors (12 May 2020) Author's response Manuscript

ED: Publish subject to technical corrections (01 Jun 2020) by Amanda Maycock

AR by In-Sun Song on behalf of the Authors (02 Jun 2020) Author's response Manuscript

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Short summary

A modeling study on the effects of propagation of atmospheric gravity waves is carried out for the 2009 sudden stratospheric warming (SSW) event. It is found that gravity-wave-induced momentum fluxes are significantly affected by horizontal refraction and the Earth's curvature effects. Gravity wave convergence and effects of ray geometry also have some impact. In the evolution of the SSW, significantly enhanced momentum fluxes are likely to change nonlocally nearby large-scale vortex structures.