Differing responses of the quasi-biennial oscillation to  artificial SO<sub>2</sub> injections in two global models

Niemeier, Ulrike; Richter, Jadwiga H.; Tilmes, Simone

doi:https://doi.org/10.5194/acp-20-8975-2020

Articles | Volume 20, issue 14

https://doi.org/10.5194/acp-20-8975-2020

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

https://doi.org/10.5194/acp-20-8975-2020

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

Articles | Volume 20, issue 14

Research article

|

29 Jul 2020

Research article |

| 29 Jul 2020

Differing responses of the quasi-biennial oscillation to artificial SO₂ injections in two global models

Ulrike Niemeier, Jadwiga H. Richter, and Simone Tilmes

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Final revised paper (published on 29 Jul 2020)
Preprint (discussion started on 25 Mar 2020)

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Status: closed

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

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RC1: 'Review of "Differing responses of the QBO to SO 2 injections in two global models" by Ulrike Niemeier, Jadwiga H. Richter and Simone Tilmes.', Anonymous Referee #1, 14 Apr 2020
RC2: 'Review of "Differing responses of the QBO to SO2 injections in two global models"', Anonymous Referee #2, 02 Jun 2020
AC1: 'Answers to the reviewers', Ulrike Niemeier, 19 Jun 2020

Peer-review completion

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

AR by Ulrike Niemeier on behalf of the Authors (19 Jun 2020) Author's response Manuscript

ED: Publish as is (29 Jun 2020) by Hailong Wang

AR by Ulrike Niemeier on behalf of the Authors (29 Jun 2020)

Short summary

Artificial injections of SO₂ into the tropical stratosphere show an impact on the quasi-biennial oscillation (QBO). Different numerical models show only qualitatively but not quantitatively consistent impacts. We show for two models that the response of the QBO is similar when a similar stratospheric heating rate is induced by SO₂ injections of different amounts. The reason is very different vertical advection in the two models resulting in different aerosol burden and heating of the aerosols.

Differing responses of the quasi-biennial oscillation to artificial SO2 injections in two global models

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Interactive discussion

Peer-review completion

Differing responses of the quasi-biennial oscillation to artificial SO₂ injections in two global models