The spatial structure of the dayside ionospheric trough
International audience Tomographic imaging provides a powerful technique for obtaining images of the spatial distribution of ionospheric electron density at polar latitudes. The method, which involves monitoring radio transmissions from the Navy Navigation Satellite System at a meridional chain of g...
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ftinsu:oai:HAL:hal-00316444v1 2023-11-12T04:16:35+01:00 The spatial structure of the dayside ionospheric trough Pryse, S. E. Kersley, L. Williams, M. J. Walker, I. K. Department of Physics University of Wales 1998 https://hal.science/hal-00316444 https://hal.science/hal-00316444/document https://hal.science/hal-00316444/file/angeo-16-1169-1998.pdf en eng HAL CCSD European Geosciences Union hal-00316444 https://hal.science/hal-00316444 https://hal.science/hal-00316444/document https://hal.science/hal-00316444/file/angeo-16-1169-1998.pdf info:eu-repo/semantics/OpenAccess ISSN: 0992-7689 EISSN: 1432-0576 Annales Geophysicae https://hal.science/hal-00316444 Annales Geophysicae, 1998, 16 (10), pp.1169-1179 [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 1998 ftinsu 2023-10-25T16:25:36Z International audience Tomographic imaging provides a powerful technique for obtaining images of the spatial distribution of ionospheric electron density at polar latitudes. The method, which involves monitoring radio transmissions from the Navy Navigation Satellite System at a meridional chain of ground receivers, has particular potential for complementing temporal measurements by other observing techniques such as the EISCAT incoherent-scatter radar facility. Tomographic reconstructions are presented here from a two-week campaign in November 1995 that show large-scale structuring of the polar ionosphere. Measurements by the EISCAT radar confirm the authenticity of the technique and provide additional information of the plasma electron and ion temperatures. The dayside trough, persistently observed at high latitudes during a geomagnetically quiet period but migrating to lower latitudes with increasing activity, is discussed in relationship to the pattern of the polar-cap convection. Article in Journal/Newspaper EISCAT Institut national des sciences de l'Univers: HAL-INSU |
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Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
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 Pryse, S. E. Kersley, L. Williams, M. J. Walker, I. K. The spatial structure of the dayside ionospheric trough |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience Tomographic imaging provides a powerful technique for obtaining images of the spatial distribution of ionospheric electron density at polar latitudes. The method, which involves monitoring radio transmissions from the Navy Navigation Satellite System at a meridional chain of ground receivers, has particular potential for complementing temporal measurements by other observing techniques such as the EISCAT incoherent-scatter radar facility. Tomographic reconstructions are presented here from a two-week campaign in November 1995 that show large-scale structuring of the polar ionosphere. Measurements by the EISCAT radar confirm the authenticity of the technique and provide additional information of the plasma electron and ion temperatures. The dayside trough, persistently observed at high latitudes during a geomagnetically quiet period but migrating to lower latitudes with increasing activity, is discussed in relationship to the pattern of the polar-cap convection. |
author2 |
Department of Physics University of Wales |
format |
Article in Journal/Newspaper |
author |
Pryse, S. E. Kersley, L. Williams, M. J. Walker, I. K. |
author_facet |
Pryse, S. E. Kersley, L. Williams, M. J. Walker, I. K. |
author_sort |
Pryse, S. E. |
title |
The spatial structure of the dayside ionospheric trough |
title_short |
The spatial structure of the dayside ionospheric trough |
title_full |
The spatial structure of the dayside ionospheric trough |
title_fullStr |
The spatial structure of the dayside ionospheric trough |
title_full_unstemmed |
The spatial structure of the dayside ionospheric trough |
title_sort |
spatial structure of the dayside ionospheric trough |
publisher |
HAL CCSD |
publishDate |
1998 |
url |
https://hal.science/hal-00316444 https://hal.science/hal-00316444/document https://hal.science/hal-00316444/file/angeo-16-1169-1998.pdf |
genre |
EISCAT |
genre_facet |
EISCAT |
op_source |
ISSN: 0992-7689 EISSN: 1432-0576 Annales Geophysicae https://hal.science/hal-00316444 Annales Geophysicae, 1998, 16 (10), pp.1169-1179 |
op_relation |
hal-00316444 https://hal.science/hal-00316444 https://hal.science/hal-00316444/document https://hal.science/hal-00316444/file/angeo-16-1169-1998.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1782333638453493760 |