Quasi-10-day wave and semi-diurnal tide nonlinear interactions during the southern hemispheric SSW 2019 observed in the northern hemispheric mesosphere
Sudden stratospheric warming events occur typically over the winter Arctic and are well-known for being accompanied by diverse waves. A rare SSW occurred in the southern hemisphere in September 2019. Here, we combine mesospheric observations from the northern hemisphere to study the wave activities...
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ftharvardunivdvn:doi:10.7910/DVN/KL6QUL 2023-05-15T15:03:00+02:00 Quasi-10-day wave and semi-diurnal tide nonlinear interactions during the southern hemispheric SSW 2019 observed in the northern hemispheric mesosphere He, Maosheng He, Maosheng https://doi.org/10.7910/DVN/KL6QUL unknown Harvard Dataverse https://doi.org/10.7910/DVN/KL6QUL Earth and Environmental Sciences tide stratospheric sudden warming (SSW) mesosphere specular meteor radar wave number ftharvardunivdvn https://doi.org/10.7910/DVN/KL6QUL 2020-09-26T22:20:49Z Sudden stratospheric warming events occur typically over the winter Arctic and are well-known for being accompanied by diverse waves. A rare SSW occurred in the southern hemisphere in September 2019. Here, we combine mesospheric observations from the northern hemisphere to study the wave activities before and during the warming event. A dual-station approach is implemented on high-frequency-resolved spectral peaks to diagnose the horizontal scales of the dominant waves. Diagnosed are multiple tidal components, multiple Rossby normal modes, and two secondary waves arising from nonlinear interactions between a tide and a Rossby wave. Most of these waves do not occur in a climatological sense and occur around the warming onset. Furthermore, the evolution of these waves can be explained using theoretical energy arguments. Other/Unknown Material Arctic Harvard Dataverse Arctic |
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Open Polar |
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Harvard Dataverse |
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ftharvardunivdvn |
language |
unknown |
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Earth and Environmental Sciences tide stratospheric sudden warming (SSW) mesosphere specular meteor radar wave number |
spellingShingle |
Earth and Environmental Sciences tide stratospheric sudden warming (SSW) mesosphere specular meteor radar wave number He, Maosheng Quasi-10-day wave and semi-diurnal tide nonlinear interactions during the southern hemispheric SSW 2019 observed in the northern hemispheric mesosphere |
topic_facet |
Earth and Environmental Sciences tide stratospheric sudden warming (SSW) mesosphere specular meteor radar wave number |
description |
Sudden stratospheric warming events occur typically over the winter Arctic and are well-known for being accompanied by diverse waves. A rare SSW occurred in the southern hemisphere in September 2019. Here, we combine mesospheric observations from the northern hemisphere to study the wave activities before and during the warming event. A dual-station approach is implemented on high-frequency-resolved spectral peaks to diagnose the horizontal scales of the dominant waves. Diagnosed are multiple tidal components, multiple Rossby normal modes, and two secondary waves arising from nonlinear interactions between a tide and a Rossby wave. Most of these waves do not occur in a climatological sense and occur around the warming onset. Furthermore, the evolution of these waves can be explained using theoretical energy arguments. |
author2 |
He, Maosheng |
author |
He, Maosheng |
author_facet |
He, Maosheng |
author_sort |
He, Maosheng |
title |
Quasi-10-day wave and semi-diurnal tide nonlinear interactions during the southern hemispheric SSW 2019 observed in the northern hemispheric mesosphere |
title_short |
Quasi-10-day wave and semi-diurnal tide nonlinear interactions during the southern hemispheric SSW 2019 observed in the northern hemispheric mesosphere |
title_full |
Quasi-10-day wave and semi-diurnal tide nonlinear interactions during the southern hemispheric SSW 2019 observed in the northern hemispheric mesosphere |
title_fullStr |
Quasi-10-day wave and semi-diurnal tide nonlinear interactions during the southern hemispheric SSW 2019 observed in the northern hemispheric mesosphere |
title_full_unstemmed |
Quasi-10-day wave and semi-diurnal tide nonlinear interactions during the southern hemispheric SSW 2019 observed in the northern hemispheric mesosphere |
title_sort |
quasi-10-day wave and semi-diurnal tide nonlinear interactions during the southern hemispheric ssw 2019 observed in the northern hemispheric mesosphere |
publisher |
Harvard Dataverse |
url |
https://doi.org/10.7910/DVN/KL6QUL |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
https://doi.org/10.7910/DVN/KL6QUL |
op_doi |
https://doi.org/10.7910/DVN/KL6QUL |
_version_ |
1766334917184061440 |