Spatial structure of auroral day-time ionospheric electron density irregularities generated by a powerful HF-wave
International audience We describe an experiment in satellite radio-wave probing of the ionosphere, modified by powerful waves from the HF heating facility at Tromsø (Norway) in May 1995. Amplitude scintillations and variations of the phase of VHF signals from Russian navigational satellites passing...
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ftccsdartic:oai:HAL:hal-00316409v1 2023-11-12T04:27:30+01:00 Spatial structure of auroral day-time ionospheric electron density irregularities generated by a powerful HF-wave Tereshchenko, E. D. Khudukon, B. Z. Rietveld, M. T. Brekke, A. Polar Geophysical Institute of Russian Academy of Sciences (PGI) Russian Academy of Sciences Moscow (RAS) EISCAT Scientific Association Norway University of Tromsø (UiT) 1998 https://hal.science/hal-00316409 https://hal.science/hal-00316409/document https://hal.science/hal-00316409/file/angeo-16-812-1998.pdf en eng HAL CCSD European Geosciences Union hal-00316409 https://hal.science/hal-00316409 https://hal.science/hal-00316409/document https://hal.science/hal-00316409/file/angeo-16-812-1998.pdf info:eu-repo/semantics/OpenAccess ISSN: 0992-7689 EISSN: 1432-0576 Annales Geophysicae https://hal.science/hal-00316409 Annales Geophysicae, 1998, 16 (7), pp.812-820 [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 ftccsdartic 2023-10-21T23:08:33Z International audience We describe an experiment in satellite radio-wave probing of the ionosphere, modified by powerful waves from the HF heating facility at Tromsø (Norway) in May 1995. Amplitude scintillations and variations of the phase of VHF signals from Russian navigational satellites passing over the heated region were observed. We show that both large-scale electron density irregularities (several tens of kilometers in size) and small-scale ones (from hundreds of meters to kilometers) can be generated by the HF radiation. Maximum effects caused by small-scale irregularities detected in the satellite signals are observed in the directions sector approximately parallel to the geomagnetic field lines although large-scale structures can be detected within a much larger area. The properties of small-scale irregularities (electron density fluctuations) are investigated by applying a statistical analysis and by studying experimental and model mean values of the logarithm of the relative amplitude of the signal. The results indicate that satellite radio probing can be a supporting diagnostic technique for ionospheric heating and add valuable information to studies of effects produced by HF modification. Article in Journal/Newspaper Tromsø Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Norway Tromsø |
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 Tereshchenko, E. D. Khudukon, B. Z. Rietveld, M. T. Brekke, A. Spatial structure of auroral day-time ionospheric electron density irregularities generated by a powerful HF-wave |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience We describe an experiment in satellite radio-wave probing of the ionosphere, modified by powerful waves from the HF heating facility at Tromsø (Norway) in May 1995. Amplitude scintillations and variations of the phase of VHF signals from Russian navigational satellites passing over the heated region were observed. We show that both large-scale electron density irregularities (several tens of kilometers in size) and small-scale ones (from hundreds of meters to kilometers) can be generated by the HF radiation. Maximum effects caused by small-scale irregularities detected in the satellite signals are observed in the directions sector approximately parallel to the geomagnetic field lines although large-scale structures can be detected within a much larger area. The properties of small-scale irregularities (electron density fluctuations) are investigated by applying a statistical analysis and by studying experimental and model mean values of the logarithm of the relative amplitude of the signal. The results indicate that satellite radio probing can be a supporting diagnostic technique for ionospheric heating and add valuable information to studies of effects produced by HF modification. |
author2 |
Polar Geophysical Institute of Russian Academy of Sciences (PGI) Russian Academy of Sciences Moscow (RAS) EISCAT Scientific Association Norway University of Tromsø (UiT) |
format |
Article in Journal/Newspaper |
author |
Tereshchenko, E. D. Khudukon, B. Z. Rietveld, M. T. Brekke, A. |
author_facet |
Tereshchenko, E. D. Khudukon, B. Z. Rietveld, M. T. Brekke, A. |
author_sort |
Tereshchenko, E. D. |
title |
Spatial structure of auroral day-time ionospheric electron density irregularities generated by a powerful HF-wave |
title_short |
Spatial structure of auroral day-time ionospheric electron density irregularities generated by a powerful HF-wave |
title_full |
Spatial structure of auroral day-time ionospheric electron density irregularities generated by a powerful HF-wave |
title_fullStr |
Spatial structure of auroral day-time ionospheric electron density irregularities generated by a powerful HF-wave |
title_full_unstemmed |
Spatial structure of auroral day-time ionospheric electron density irregularities generated by a powerful HF-wave |
title_sort |
spatial structure of auroral day-time ionospheric electron density irregularities generated by a powerful hf-wave |
publisher |
HAL CCSD |
publishDate |
1998 |
url |
https://hal.science/hal-00316409 https://hal.science/hal-00316409/document https://hal.science/hal-00316409/file/angeo-16-812-1998.pdf |
geographic |
Norway Tromsø |
geographic_facet |
Norway Tromsø |
genre |
Tromsø |
genre_facet |
Tromsø |
op_source |
ISSN: 0992-7689 EISSN: 1432-0576 Annales Geophysicae https://hal.science/hal-00316409 Annales Geophysicae, 1998, 16 (7), pp.812-820 |
op_relation |
hal-00316409 https://hal.science/hal-00316409 https://hal.science/hal-00316409/document https://hal.science/hal-00316409/file/angeo-16-812-1998.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1782341083659763712 |