Observation of mesospheric gravity waves at Comandante Ferraz Antarctica Station (62° S)
An airglow all-sky imager was operated at Comandante Ferraz Antarctica Station (62.1° S, 58.4° W), between April and October of 2007. Mesospheric gravity waves were observed using the OH airglow layer during 43 nights with good weather conditions. The waves presented horizontal wavelengths between 1...
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ftdoajarticles:oai:doaj.org/article:4e82f9b7627a43529350d1b22355af60 2023-05-15T13:30:38+02:00 Observation of mesospheric gravity waves at Comandante Ferraz Antarctica Station (62° S) J. V. Bageston C. M. Wrasse D. Gobbi H. Takahashi P. B. Souza 2009-06-01T00:00:00Z https://doi.org/10.5194/angeo-27-2593-2009 https://doaj.org/article/4e82f9b7627a43529350d1b22355af60 EN eng Copernicus Publications https://www.ann-geophys.net/27/2593/2009/angeo-27-2593-2009.pdf https://doaj.org/toc/0992-7689 https://doaj.org/toc/1432-0576 doi:10.5194/angeo-27-2593-2009 0992-7689 1432-0576 https://doaj.org/article/4e82f9b7627a43529350d1b22355af60 Annales Geophysicae, Vol 27, Pp 2593-2598 (2009) Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 article 2009 ftdoajarticles https://doi.org/10.5194/angeo-27-2593-2009 2022-12-31T03:49:53Z An airglow all-sky imager was operated at Comandante Ferraz Antarctica Station (62.1° S, 58.4° W), between April and October of 2007. Mesospheric gravity waves were observed using the OH airglow layer during 43 nights with good weather conditions. The waves presented horizontal wavelengths between 10 and 60 km and observed periods mainly distributed between 5 and 20 min. The observed phase speeds range between 5 m/s and 115 m/s; the majority of the wave velocities were between 10 and 60 m/s. The waves showed a preferential propagation direction towards the southwest in winter (May to July), while during spring (August to October) there was an anisotropy with a preferential propagation direction towards the northwest. Unusual mesospheric fronts were also observed. The most probable wave source could be associated to orographic forcing, cold fronts or strong cyclonic activity in the Antarctica Peninsula. Article in Journal/Newspaper Antarc* Antarctica Directory of Open Access Journals: DOAJ Articles Ferraz ENVELOPE(-64.117,-64.117,-65.117,-65.117) Annales Geophysicae 27 6 2593 2598 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 |
spellingShingle |
Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 J. V. Bageston C. M. Wrasse D. Gobbi H. Takahashi P. B. Souza Observation of mesospheric gravity waves at Comandante Ferraz Antarctica Station (62° S) |
topic_facet |
Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 |
description |
An airglow all-sky imager was operated at Comandante Ferraz Antarctica Station (62.1° S, 58.4° W), between April and October of 2007. Mesospheric gravity waves were observed using the OH airglow layer during 43 nights with good weather conditions. The waves presented horizontal wavelengths between 10 and 60 km and observed periods mainly distributed between 5 and 20 min. The observed phase speeds range between 5 m/s and 115 m/s; the majority of the wave velocities were between 10 and 60 m/s. The waves showed a preferential propagation direction towards the southwest in winter (May to July), while during spring (August to October) there was an anisotropy with a preferential propagation direction towards the northwest. Unusual mesospheric fronts were also observed. The most probable wave source could be associated to orographic forcing, cold fronts or strong cyclonic activity in the Antarctica Peninsula. |
format |
Article in Journal/Newspaper |
author |
J. V. Bageston C. M. Wrasse D. Gobbi H. Takahashi P. B. Souza |
author_facet |
J. V. Bageston C. M. Wrasse D. Gobbi H. Takahashi P. B. Souza |
author_sort |
J. V. Bageston |
title |
Observation of mesospheric gravity waves at Comandante Ferraz Antarctica Station (62° S) |
title_short |
Observation of mesospheric gravity waves at Comandante Ferraz Antarctica Station (62° S) |
title_full |
Observation of mesospheric gravity waves at Comandante Ferraz Antarctica Station (62° S) |
title_fullStr |
Observation of mesospheric gravity waves at Comandante Ferraz Antarctica Station (62° S) |
title_full_unstemmed |
Observation of mesospheric gravity waves at Comandante Ferraz Antarctica Station (62° S) |
title_sort |
observation of mesospheric gravity waves at comandante ferraz antarctica station (62° s) |
publisher |
Copernicus Publications |
publishDate |
2009 |
url |
https://doi.org/10.5194/angeo-27-2593-2009 https://doaj.org/article/4e82f9b7627a43529350d1b22355af60 |
long_lat |
ENVELOPE(-64.117,-64.117,-65.117,-65.117) |
geographic |
Ferraz |
geographic_facet |
Ferraz |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Annales Geophysicae, Vol 27, Pp 2593-2598 (2009) |
op_relation |
https://www.ann-geophys.net/27/2593/2009/angeo-27-2593-2009.pdf https://doaj.org/toc/0992-7689 https://doaj.org/toc/1432-0576 doi:10.5194/angeo-27-2593-2009 0992-7689 1432-0576 https://doaj.org/article/4e82f9b7627a43529350d1b22355af60 |
op_doi |
https://doi.org/10.5194/angeo-27-2593-2009 |
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Annales Geophysicae |
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27 |
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6 |
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2593 |
op_container_end_page |
2598 |
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1766011054607826944 |