On the fast movements of the thermosphere: an interpretation
International audience 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 hundred...
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ftccsdartic:oai:HAL:hal-00329172v1 2023-05-15T16:04:36+02:00 On the fast movements of the thermosphere: an interpretation Lilensten, J. Amblard, Pierre-Olivier Laboratoire de Planétologie de Grenoble (LPG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Environnements et outils pour le Génie Logiciel Industriel (ADELE) Laboratoire d'Informatique de Grenoble (LIG) Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National Polytechnique de Grenoble (INPG)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National Polytechnique de Grenoble (INPG)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Joseph Fourier - Grenoble 1 (UJF) 2000 https://hal.archives-ouvertes.fr/hal-00329172 https://hal.archives-ouvertes.fr/hal-00329172/document https://hal.archives-ouvertes.fr/hal-00329172/file/angeo-18-1651-2000.pdf en eng HAL CCSD European Geosciences Union hal-00329172 https://hal.archives-ouvertes.fr/hal-00329172 https://hal.archives-ouvertes.fr/hal-00329172/document https://hal.archives-ouvertes.fr/hal-00329172/file/angeo-18-1651-2000.pdf info:eu-repo/semantics/OpenAccess ISSN: 0992-7689 EISSN: 1432-0576 Annales Geophysicae https://hal.archives-ouvertes.fr/hal-00329172 Annales Geophysicae, European Geosciences Union, 2000, 18 (12), pp.1651-1656 [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2000 ftccsdartic 2021-10-24T20:42:36Z International audience 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) Article in Journal/Newspaper EISCAT Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Tourbillons ENVELOPE(139.951,139.951,-66.669,-66.669) |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences Lilensten, J. Amblard, Pierre-Olivier On the fast movements of the thermosphere: an interpretation |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience 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) |
author2 |
Laboratoire de Planétologie de Grenoble (LPG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Environnements et outils pour le Génie Logiciel Industriel (ADELE) Laboratoire d'Informatique de Grenoble (LIG) Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National Polytechnique de Grenoble (INPG)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National Polytechnique de Grenoble (INPG)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Joseph Fourier - Grenoble 1 (UJF) |
format |
Article in Journal/Newspaper |
author |
Lilensten, J. Amblard, Pierre-Olivier |
author_facet |
Lilensten, J. Amblard, Pierre-Olivier |
author_sort |
Lilensten, J. |
title |
On the fast movements of the thermosphere: an interpretation |
title_short |
On the fast movements of the thermosphere: an interpretation |
title_full |
On the fast movements of the thermosphere: an interpretation |
title_fullStr |
On the fast movements of the thermosphere: an interpretation |
title_full_unstemmed |
On the fast movements of the thermosphere: an interpretation |
title_sort |
on the fast movements of the thermosphere: an interpretation |
publisher |
HAL CCSD |
publishDate |
2000 |
url |
https://hal.archives-ouvertes.fr/hal-00329172 https://hal.archives-ouvertes.fr/hal-00329172/document https://hal.archives-ouvertes.fr/hal-00329172/file/angeo-18-1651-2000.pdf |
long_lat |
ENVELOPE(139.951,139.951,-66.669,-66.669) |
geographic |
Tourbillons |
geographic_facet |
Tourbillons |
genre |
EISCAT |
genre_facet |
EISCAT |
op_source |
ISSN: 0992-7689 EISSN: 1432-0576 Annales Geophysicae https://hal.archives-ouvertes.fr/hal-00329172 Annales Geophysicae, European Geosciences Union, 2000, 18 (12), pp.1651-1656 |
op_relation |
hal-00329172 https://hal.archives-ouvertes.fr/hal-00329172 https://hal.archives-ouvertes.fr/hal-00329172/document https://hal.archives-ouvertes.fr/hal-00329172/file/angeo-18-1651-2000.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1766400200969027584 |