MF radar observations of the diurnal tide over Syowa, Antarctica (69° S, 40° E)
Characteristics of the diurnal tide in the Antarctic mesosphere and lower thermosphere (MLT) are investigated using 10 years of medium frequency (MF) radar data from Syowa Station (69° S, 39.6° E). Seasonal variations and height dependence of the diurnal amplitude and phase of zonal and meridional w...
Published in: | Annales Geophysicae |
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Online Access: | https://doi.org/10.5194/angeo-27-2653-2009 https://angeo.copernicus.org/articles/27/2653/2009/ |
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ftcopernicus:oai:publications.copernicus.org:angeo36854 2023-05-15T13:36:36+02:00 MF radar observations of the diurnal tide over Syowa, Antarctica (69° S, 40° E) Tomikawa, Y. Tsutsumi, M. 2018-09-27 application/pdf https://doi.org/10.5194/angeo-27-2653-2009 https://angeo.copernicus.org/articles/27/2653/2009/ eng eng doi:10.5194/angeo-27-2653-2009 https://angeo.copernicus.org/articles/27/2653/2009/ eISSN: 1432-0576 Text 2018 ftcopernicus https://doi.org/10.5194/angeo-27-2653-2009 2020-07-20T16:26:38Z Characteristics of the diurnal tide in the Antarctic mesosphere and lower thermosphere (MLT) are investigated using 10 years of medium frequency (MF) radar data from Syowa Station (69° S, 39.6° E). Seasonal variations and height dependence of the diurnal amplitude and phase of zonal and meridional winds are mostly consistent with previous studies using the other Antarctic station data. The meridional momentum flux due to the diurnal tide shows a seasonal variation clearly different between above and below 90 km, which has never been reported in the literature. Finally, a cause of some discrepancy in the characteristics of the diurnal tide between the observation and simulation (i.e., GSWM-02) is discussed. It implies that the realistic representation of gravity waves in the simulation is crucial for realistic modeling of the diurnal tide. Text Antarc* Antarctic Antarctica Copernicus Publications: E-Journals Antarctic Syowa Station The Antarctic Annales Geophysicae 27 7 2653 2659 |
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Open Polar |
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Copernicus Publications: E-Journals |
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ftcopernicus |
language |
English |
description |
Characteristics of the diurnal tide in the Antarctic mesosphere and lower thermosphere (MLT) are investigated using 10 years of medium frequency (MF) radar data from Syowa Station (69° S, 39.6° E). Seasonal variations and height dependence of the diurnal amplitude and phase of zonal and meridional winds are mostly consistent with previous studies using the other Antarctic station data. The meridional momentum flux due to the diurnal tide shows a seasonal variation clearly different between above and below 90 km, which has never been reported in the literature. Finally, a cause of some discrepancy in the characteristics of the diurnal tide between the observation and simulation (i.e., GSWM-02) is discussed. It implies that the realistic representation of gravity waves in the simulation is crucial for realistic modeling of the diurnal tide. |
format |
Text |
author |
Tomikawa, Y. Tsutsumi, M. |
spellingShingle |
Tomikawa, Y. Tsutsumi, M. MF radar observations of the diurnal tide over Syowa, Antarctica (69° S, 40° E) |
author_facet |
Tomikawa, Y. Tsutsumi, M. |
author_sort |
Tomikawa, Y. |
title |
MF radar observations of the diurnal tide over Syowa, Antarctica (69° S, 40° E) |
title_short |
MF radar observations of the diurnal tide over Syowa, Antarctica (69° S, 40° E) |
title_full |
MF radar observations of the diurnal tide over Syowa, Antarctica (69° S, 40° E) |
title_fullStr |
MF radar observations of the diurnal tide over Syowa, Antarctica (69° S, 40° E) |
title_full_unstemmed |
MF radar observations of the diurnal tide over Syowa, Antarctica (69° S, 40° E) |
title_sort |
mf radar observations of the diurnal tide over syowa, antarctica (69° s, 40° e) |
publishDate |
2018 |
url |
https://doi.org/10.5194/angeo-27-2653-2009 https://angeo.copernicus.org/articles/27/2653/2009/ |
geographic |
Antarctic Syowa Station The Antarctic |
geographic_facet |
Antarctic Syowa Station The Antarctic |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
eISSN: 1432-0576 |
op_relation |
doi:10.5194/angeo-27-2653-2009 https://angeo.copernicus.org/articles/27/2653/2009/ |
op_doi |
https://doi.org/10.5194/angeo-27-2653-2009 |
container_title |
Annales Geophysicae |
container_volume |
27 |
container_issue |
7 |
container_start_page |
2653 |
op_container_end_page |
2659 |
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1766081433893339136 |