Stratospheric gravity waves over the mountainous island of South Georgia: testing a high-resolution dynamical model with 3-D satellite observations and radiosondes

Hindley, Neil P.; Wright, Corwin J.; Gadian, Alan M.; Hoffmann, Lars; Hughes, John K.; Jackson, David R.; King, John C.; Mitchell, Nicholas J.; Moffat-Griffin, Tracy; Moss, Andrew C.; Vosper, Simon B.; Ross, Andrew N.

doi:https://doi.org/10.5194/acp-21-7695-2021

Articles | Volume 21, issue 10

https://doi.org/10.5194/acp-21-7695-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-21-7695-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 21, issue 10

Research article

|

20 May 2021

Research article |

| 20 May 2021

Stratospheric gravity waves over the mountainous island of South Georgia: testing a high-resolution dynamical model with 3-D satellite observations and radiosondes

Neil P. Hindley, Corwin J. Wright, Alan M. Gadian, Lars Hoffmann, John K. Hughes, David R. Jackson, John C. King, Nicholas J. Mitchell, Tracy Moffat-Griffin, Andrew C. Moss, Simon B. Vosper, and Andrew N. Ross

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Final revised paper (published on 20 May 2021)
Preprint (discussion started on 12 Jun 2020)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Review of Stratospheric gravity-waves over the mountainous island of South Georgia: testing a high-resolution dynamical model with 3-D satellite observations and radiosondes by Neil P. Hindley et al., acp-2020-465', Anonymous Referee #1, 06 Jul 2020
- AC1: 'Authors Response to Reviewer 1', Neil Hindley, 21 Dec 2020
RC2: 'Review Hindley et al', Anonymous Referee #2, 14 Jul 2020
- AC2: 'Authors Response to Reviewer 2', Neil Hindley, 21 Dec 2020
RC3: 'Formal review', Anonymous Referee #3, 31 Jul 2020
- AC3: 'Authors Response to Reviewer 3', Neil Hindley, 21 Dec 2020

Peer-review completion

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

AR by Katja Gänger on behalf of the Authors (22 Dec 2020) Author's response

ED: Referee Nomination & Report Request started (30 Dec 2020) by Peter Haynes

RR by Anonymous Referee #1 (11 Jan 2021)

RR by Anonymous Referee #2 (15 Jan 2021)

RR by Anonymous Referee #3 (25 Jan 2021)

ED: Publish subject to minor revisions (review by editor) (06 Feb 2021) by Peter Haynes

AR by Neil Hindley on behalf of the Authors (26 Feb 2021) Author's response Author's tracked changes Manuscript

ED: Publish as is (15 Mar 2021) by Peter Haynes

Short summary

One limitation of numerical atmospheric models is spatial resolution. For atmospheric gravity waves (GWs) generated over small mountainous islands, the driving effect of these waves on atmospheric circulations can be underestimated. Here we use a specialised high-resolution model over South Georgia island to compare simulated stratospheric GWs to colocated 3-D satellite observations. We find reasonable model agreement with observations, with some GW amplitudes much larger than expected.