Energetic electron precipitation associated with pulsating aurora: EISCAT and Van Allen Probe observations
Pulsating auroras show quasi-periodic intensity modulations caused by the precipitation of energetic electrons of the order of tens of keV. It is expected theoretically that not only these electrons but also subrelativistic/relativistic electrons precipitate simultaneously into the ionosphere owing...
Published in: | Journal of Geophysical Research: Space Physics |
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Online Access: | https://doi.org/10.1002/2014JA020690 http://hdl.handle.net/11104/0247040 |
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ftczacademyscien:oai:asep.lib.cas.cz:CavUnEpca/0444529 2024-09-15T18:04:28+00:00 Energetic electron precipitation associated with pulsating aurora: EISCAT and Van Allen Probe observations Miyoshi, Y. Oyama, S. Saito, S. Kurita, S. Fujiwara, H. Kataoka, R. Ebihara, Y. Kletzing, C. Reeves, G. Santolík, O. (Ondřej) Clilverd, M. Rodger, C. J. Turunen, E. Tsuchiya, F. 2015 https://doi.org/10.1002/2014JA020690 http://hdl.handle.net/11104/0247040 eng eng doi:10.1002/2014JA020690 urn:pissn: 2169-9380 urn:eissn: 2169-9402 http://hdl.handle.net/11104/0247040 pulsating aurora EISCAT Van Allen Probes pitch angle scattering info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2015 ftczacademyscien https://doi.org/10.1002/2014JA020690 2024-08-19T05:32:59Z Pulsating auroras show quasi-periodic intensity modulations caused by the precipitation of energetic electrons of the order of tens of keV. It is expected theoretically that not only these electrons but also subrelativistic/relativistic electrons precipitate simultaneously into the ionosphere owing to whistler mode wave-particle interactions. The height-resolved electron density profile was observed with the European Incoherent Scatter (EISCAT) Tromsø VHF radar on 17 November 2012. Electron density enhancements were clearly identified at altitudes >68 km in association with the pulsating aurora, suggesting precipitation of electrons with a broadband energy range from ~10 keV up to at least 200 keV. The riometer and network of subionospheric radio wave observations also showed the energetic electron precipitations during this period. During this period, the footprint of the Van Allen Probe-A satellite was very close to Tromsø and the satellite observed rising tone emissions of the lower band chorus (LBC) waves near the equatorial plane. Considering the observed LBC waves and electrons, we conducted a computer simulation of the wave-particle interactions. Article in Journal/Newspaper EISCAT Tromsø The Czech Academy of Sciences: Publication Activity (ASEP) Journal of Geophysical Research: Space Physics 120 4 2754 2766 |
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Open Polar |
collection |
The Czech Academy of Sciences: Publication Activity (ASEP) |
op_collection_id |
ftczacademyscien |
language |
English |
topic |
pulsating aurora EISCAT Van Allen Probes pitch angle scattering |
spellingShingle |
pulsating aurora EISCAT Van Allen Probes pitch angle scattering Miyoshi, Y. Oyama, S. Saito, S. Kurita, S. Fujiwara, H. Kataoka, R. Ebihara, Y. Kletzing, C. Reeves, G. Santolík, O. (Ondřej) Clilverd, M. Rodger, C. J. Turunen, E. Tsuchiya, F. Energetic electron precipitation associated with pulsating aurora: EISCAT and Van Allen Probe observations |
topic_facet |
pulsating aurora EISCAT Van Allen Probes pitch angle scattering |
description |
Pulsating auroras show quasi-periodic intensity modulations caused by the precipitation of energetic electrons of the order of tens of keV. It is expected theoretically that not only these electrons but also subrelativistic/relativistic electrons precipitate simultaneously into the ionosphere owing to whistler mode wave-particle interactions. The height-resolved electron density profile was observed with the European Incoherent Scatter (EISCAT) Tromsø VHF radar on 17 November 2012. Electron density enhancements were clearly identified at altitudes >68 km in association with the pulsating aurora, suggesting precipitation of electrons with a broadband energy range from ~10 keV up to at least 200 keV. The riometer and network of subionospheric radio wave observations also showed the energetic electron precipitations during this period. During this period, the footprint of the Van Allen Probe-A satellite was very close to Tromsø and the satellite observed rising tone emissions of the lower band chorus (LBC) waves near the equatorial plane. Considering the observed LBC waves and electrons, we conducted a computer simulation of the wave-particle interactions. |
format |
Article in Journal/Newspaper |
author |
Miyoshi, Y. Oyama, S. Saito, S. Kurita, S. Fujiwara, H. Kataoka, R. Ebihara, Y. Kletzing, C. Reeves, G. Santolík, O. (Ondřej) Clilverd, M. Rodger, C. J. Turunen, E. Tsuchiya, F. |
author_facet |
Miyoshi, Y. Oyama, S. Saito, S. Kurita, S. Fujiwara, H. Kataoka, R. Ebihara, Y. Kletzing, C. Reeves, G. Santolík, O. (Ondřej) Clilverd, M. Rodger, C. J. Turunen, E. Tsuchiya, F. |
author_sort |
Miyoshi, Y. |
title |
Energetic electron precipitation associated with pulsating aurora: EISCAT and Van Allen Probe observations |
title_short |
Energetic electron precipitation associated with pulsating aurora: EISCAT and Van Allen Probe observations |
title_full |
Energetic electron precipitation associated with pulsating aurora: EISCAT and Van Allen Probe observations |
title_fullStr |
Energetic electron precipitation associated with pulsating aurora: EISCAT and Van Allen Probe observations |
title_full_unstemmed |
Energetic electron precipitation associated with pulsating aurora: EISCAT and Van Allen Probe observations |
title_sort |
energetic electron precipitation associated with pulsating aurora: eiscat and van allen probe observations |
publishDate |
2015 |
url |
https://doi.org/10.1002/2014JA020690 http://hdl.handle.net/11104/0247040 |
genre |
EISCAT Tromsø |
genre_facet |
EISCAT Tromsø |
op_relation |
doi:10.1002/2014JA020690 urn:pissn: 2169-9380 urn:eissn: 2169-9402 http://hdl.handle.net/11104/0247040 |
op_doi |
https://doi.org/10.1002/2014JA020690 |
container_title |
Journal of Geophysical Research: Space Physics |
container_volume |
120 |
container_issue |
4 |
container_start_page |
2754 |
op_container_end_page |
2766 |
_version_ |
1810441967709978624 |