Meridional wind in the auroral thermosphere: Results from EISCAT and WINDII-O( 1 D) coordinated measurements
International audience Neutral thermospheric winds calculated from European incoherent scatter (EISCAT) radar data have been compared with winds measured by wind imaging interferometer (WINDII) in O( 1 D) emission during 11 passes of the WINDII fields of view near the radar facility. For the eight o...
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Online Access: | https://hal.science/hal-01628637 https://hal.science/hal-01628637/document https://hal.science/hal-01628637/file/96JA03429.pdf https://doi.org/10.1029/96JA03429 |
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ftuniversailles:oai:HAL:hal-01628637v1 2023-07-30T04:03:15+02:00 Meridional wind in the auroral thermosphere: Results from EISCAT and WINDII-O( 1 D) coordinated measurements Lathuillière, Chantal Lilensten, Jean Gault, W. Thuillier, Gérard Centre d'Études des Phénomènes Aléatoires et Géophysiques (CEPHAG) École Nationale Supérieure d'Ingénieurs Électriciens de Grenoble (ENSIEG)-Centre National de la Recherche Scientifique (CNRS) University of York York, UK Service d'aéronomie (SA) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) 1997 https://hal.science/hal-01628637 https://hal.science/hal-01628637/document https://hal.science/hal-01628637/file/96JA03429.pdf https://doi.org/10.1029/96JA03429 en eng HAL CCSD American Geophysical Union/Wiley info:eu-repo/semantics/altIdentifier/doi/10.1029/96JA03429 hal-01628637 https://hal.science/hal-01628637 https://hal.science/hal-01628637/document https://hal.science/hal-01628637/file/96JA03429.pdf doi:10.1029/96JA03429 info:eu-repo/semantics/OpenAccess ISSN: 2169-9380 EISSN: 2169-9402 Journal of Geophysical Research Space Physics https://hal.science/hal-01628637 Journal of Geophysical Research Space Physics, 1997, 102 (A3), pp.4487-4492. ⟨10.1029/96JA03429⟩ [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] info:eu-repo/semantics/article Journal articles 1997 ftuniversailles https://doi.org/10.1029/96JA03429 2023-07-16T20:47:18Z International audience Neutral thermospheric winds calculated from European incoherent scatter (EISCAT) radar data have been compared with winds measured by wind imaging interferometer (WINDII) in O( 1 D) emission during 11 passes of the WINDII fields of view near the radar facility. For the eight occasions when geomagnetic activity was low the average difference in the meridional winds measured by the two methods is less than 10 m/s. The EISCAT calculations were done with and without a “Burnside factor” of 1.7, and agreement with WINDII is somewhat better when the Burnside factor is not included. The three passes corresponding to disturbed conditions show poor agreement. In addition, agreement between EISCAT and WINDII is better when unfiltered EISCAT winds are used, rather than the 2-hour running mean used in earlier work. This finding suggests that the short-term oscillations seen by EISCAT are real oscillations of the neutral atmosphere. Article in Journal/Newspaper EISCAT Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ Journal of Geophysical Research: Space Physics 102 A3 4487 4492 |
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Open Polar |
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Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ |
op_collection_id |
ftuniversailles |
language |
English |
topic |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] |
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[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] Lathuillière, Chantal Lilensten, Jean Gault, W. Thuillier, Gérard Meridional wind in the auroral thermosphere: Results from EISCAT and WINDII-O( 1 D) coordinated measurements |
topic_facet |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] |
description |
International audience Neutral thermospheric winds calculated from European incoherent scatter (EISCAT) radar data have been compared with winds measured by wind imaging interferometer (WINDII) in O( 1 D) emission during 11 passes of the WINDII fields of view near the radar facility. For the eight occasions when geomagnetic activity was low the average difference in the meridional winds measured by the two methods is less than 10 m/s. The EISCAT calculations were done with and without a “Burnside factor” of 1.7, and agreement with WINDII is somewhat better when the Burnside factor is not included. The three passes corresponding to disturbed conditions show poor agreement. In addition, agreement between EISCAT and WINDII is better when unfiltered EISCAT winds are used, rather than the 2-hour running mean used in earlier work. This finding suggests that the short-term oscillations seen by EISCAT are real oscillations of the neutral atmosphere. |
author2 |
Centre d'Études des Phénomènes Aléatoires et Géophysiques (CEPHAG) École Nationale Supérieure d'Ingénieurs Électriciens de Grenoble (ENSIEG)-Centre National de la Recherche Scientifique (CNRS) University of York York, UK Service d'aéronomie (SA) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Lathuillière, Chantal Lilensten, Jean Gault, W. Thuillier, Gérard |
author_facet |
Lathuillière, Chantal Lilensten, Jean Gault, W. Thuillier, Gérard |
author_sort |
Lathuillière, Chantal |
title |
Meridional wind in the auroral thermosphere: Results from EISCAT and WINDII-O( 1 D) coordinated measurements |
title_short |
Meridional wind in the auroral thermosphere: Results from EISCAT and WINDII-O( 1 D) coordinated measurements |
title_full |
Meridional wind in the auroral thermosphere: Results from EISCAT and WINDII-O( 1 D) coordinated measurements |
title_fullStr |
Meridional wind in the auroral thermosphere: Results from EISCAT and WINDII-O( 1 D) coordinated measurements |
title_full_unstemmed |
Meridional wind in the auroral thermosphere: Results from EISCAT and WINDII-O( 1 D) coordinated measurements |
title_sort |
meridional wind in the auroral thermosphere: results from eiscat and windii-o( 1 d) coordinated measurements |
publisher |
HAL CCSD |
publishDate |
1997 |
url |
https://hal.science/hal-01628637 https://hal.science/hal-01628637/document https://hal.science/hal-01628637/file/96JA03429.pdf https://doi.org/10.1029/96JA03429 |
genre |
EISCAT |
genre_facet |
EISCAT |
op_source |
ISSN: 2169-9380 EISSN: 2169-9402 Journal of Geophysical Research Space Physics https://hal.science/hal-01628637 Journal of Geophysical Research Space Physics, 1997, 102 (A3), pp.4487-4492. ⟨10.1029/96JA03429⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/96JA03429 hal-01628637 https://hal.science/hal-01628637 https://hal.science/hal-01628637/document https://hal.science/hal-01628637/file/96JA03429.pdf doi:10.1029/96JA03429 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/96JA03429 |
container_title |
Journal of Geophysical Research: Space Physics |
container_volume |
102 |
container_issue |
A3 |
container_start_page |
4487 |
op_container_end_page |
4492 |
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1772814211791978496 |