Angular dependence of pump-induced bottomside and topside ionospheric plasma turbulence at EISCAT
We experimentally observe the location and angular size of the high-frequency (HF) radio window in the bottomside ionosphere, which permits radio wave propagation to the topside ionosphere, with high angular resolution at the European Incoherent Scatter (EISCAT) facility. HF pump-induced ion line en...
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ftulancaster:oai:eprints.lancs.ac.uk:40839 2023-08-27T04:09:13+02:00 Angular dependence of pump-induced bottomside and topside ionospheric plasma turbulence at EISCAT Kosch, M.J. Mjølhus, E. Ashrafi, M. Rietveld, M.T. Yeoman, T. Nozawa, S. 2011-03-22 https://eprints.lancs.ac.uk/id/eprint/40839/ https://doi.org/10.1029/2010JA016014 unknown Kosch, M.J. and Mjølhus, E. and Ashrafi, M. and Rietveld, M.T. and Yeoman, T. and Nozawa, S. (2011) Angular dependence of pump-induced bottomside and topside ionospheric plasma turbulence at EISCAT. Journal of Geophysical Research, 116 (A03322). pp. 1-9. ISSN 0148-0227 Journal Article PeerReviewed 2011 ftulancaster https://doi.org/10.1029/2010JA016014 2023-08-03T22:20:18Z We experimentally observe the location and angular size of the high-frequency (HF) radio window in the bottomside ionosphere, which permits radio wave propagation to the topside ionosphere, with high angular resolution at the European Incoherent Scatter (EISCAT) facility. HF pump-induced ion line enhancements were observed by the EISCAT UHF incoherent scatter radar on the ionospheric bottomside and topside. The radar zenith angle was scanned in small steps in the magnetic meridian. The HF pump duty cycle was deliberately kept low enough to minimize the growth of artificial field-aligned irregularities. The locations of the bottomside radio window and topside enhanced radar echoes are consistent with the expected position determined by ray tracing performed using the observed plasma densities. Article in Journal/Newspaper EISCAT Lancaster University: Lancaster Eprints Journal of Geophysical Research: Space Physics 116 A3 |
institution |
Open Polar |
collection |
Lancaster University: Lancaster Eprints |
op_collection_id |
ftulancaster |
language |
unknown |
description |
We experimentally observe the location and angular size of the high-frequency (HF) radio window in the bottomside ionosphere, which permits radio wave propagation to the topside ionosphere, with high angular resolution at the European Incoherent Scatter (EISCAT) facility. HF pump-induced ion line enhancements were observed by the EISCAT UHF incoherent scatter radar on the ionospheric bottomside and topside. The radar zenith angle was scanned in small steps in the magnetic meridian. The HF pump duty cycle was deliberately kept low enough to minimize the growth of artificial field-aligned irregularities. The locations of the bottomside radio window and topside enhanced radar echoes are consistent with the expected position determined by ray tracing performed using the observed plasma densities. |
format |
Article in Journal/Newspaper |
author |
Kosch, M.J. Mjølhus, E. Ashrafi, M. Rietveld, M.T. Yeoman, T. Nozawa, S. |
spellingShingle |
Kosch, M.J. Mjølhus, E. Ashrafi, M. Rietveld, M.T. Yeoman, T. Nozawa, S. Angular dependence of pump-induced bottomside and topside ionospheric plasma turbulence at EISCAT |
author_facet |
Kosch, M.J. Mjølhus, E. Ashrafi, M. Rietveld, M.T. Yeoman, T. Nozawa, S. |
author_sort |
Kosch, M.J. |
title |
Angular dependence of pump-induced bottomside and topside ionospheric plasma turbulence at EISCAT |
title_short |
Angular dependence of pump-induced bottomside and topside ionospheric plasma turbulence at EISCAT |
title_full |
Angular dependence of pump-induced bottomside and topside ionospheric plasma turbulence at EISCAT |
title_fullStr |
Angular dependence of pump-induced bottomside and topside ionospheric plasma turbulence at EISCAT |
title_full_unstemmed |
Angular dependence of pump-induced bottomside and topside ionospheric plasma turbulence at EISCAT |
title_sort |
angular dependence of pump-induced bottomside and topside ionospheric plasma turbulence at eiscat |
publishDate |
2011 |
url |
https://eprints.lancs.ac.uk/id/eprint/40839/ https://doi.org/10.1029/2010JA016014 |
genre |
EISCAT |
genre_facet |
EISCAT |
op_relation |
Kosch, M.J. and Mjølhus, E. and Ashrafi, M. and Rietveld, M.T. and Yeoman, T. and Nozawa, S. (2011) Angular dependence of pump-induced bottomside and topside ionospheric plasma turbulence at EISCAT. Journal of Geophysical Research, 116 (A03322). pp. 1-9. ISSN 0148-0227 |
op_doi |
https://doi.org/10.1029/2010JA016014 |
container_title |
Journal of Geophysical Research: Space Physics |
container_volume |
116 |
container_issue |
A3 |
_version_ |
1775350371195027456 |