Articles | Volume 15, issue 14
Atmos. Chem. Phys., 15, 7797–7818, 2015
https://doi.org/10.5194/acp-15-7797-2015
Atmos. Chem. Phys., 15, 7797–7818, 2015
https://doi.org/10.5194/acp-15-7797-2015

Research article 16 Jul 2015

Research article | 16 Jul 2015

The southern stratospheric gravity wave hot spot: individual waves and their momentum fluxes measured by COSMIC GPS-RO

N. P. Hindley et al.

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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Neil Hindley on behalf of the Authors (15 May 2015)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (18 May 2015) by Federico Fierli
RR by Anonymous Referee #2 (29 May 2015)
ED: Reconsider after minor revisions (Editor review) (11 Jun 2015) by Federico Fierli
AR by Neil Hindley on behalf of the Authors (19 Jun 2015)  Author's response    Manuscript
ED: Publish as is (23 Jun 2015) by Federico Fierli
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Short summary
In nearly all GCMs, unresolved gravity wave (GW) drag may cause the southern stratospheric winter polar vortex to break down too late. Here, we characterise GWs in this region of the atmosphere using GPS radio occultation. We find GWs may propagate into the region from other latitudes. We develop a new quantitative wave identification method to learn about regional wave populations. We also find intense GW momentum fluxes over the southern Andes and Antarctic Peninsula GW hot spot.
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