On the fast movements of the thermosphere: an interpretation
We examine the oscillations of the meridional neutral wind in the F region as seen by the EISCAT radar. We propose an interpretation in term of eddies (tourbillons) of typical size of a few tens to a few hundreds of kilometers. The observed rotation velocity is a few hundreds of meters per second. W...
| Published in: | Annales Geophysicae |
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| Main Authors: | , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Springer Verlag
2000
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| Subjects: | |
| Online Access: | https://doi.org/10.1007/s00585-001-1651-8 https://noa.gwlb.de/receive/cop_mods_00036556 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00036510/angeo-18-1651-2000.pdf https://angeo.copernicus.org/articles/18/1651/2000/angeo-18-1651-2000.pdf |
| Summary: | We examine the oscillations of the meridional neutral wind in the F region as seen by the EISCAT radar. We propose an interpretation in term of eddies (tourbillons) of typical size of a few tens to a few hundreds of kilometers. The observed rotation velocity is a few hundreds of meters per second. We suggest that the tourbillons are a common feature of thermospheric movements. We propose an optical experiment to check the validity of this assumption. Key words: Atmospheric composition and structure (thermosphere · composition and chemistry) · Ionosphere (ionosphere · atmosphere interactions) |
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