Ionospheric electron number densities from CUTLASS dual-frequency velocity measurements using artificial backscatter over EISCAT
Using quasi-simultaneous line-of-sight velocity measurements at multiple frequencies from the Hankasalmi Cooperative UK Twin Auroral Sounding System (CUTLASS) on the Super Dual Auroral Radar Network (SuperDARN), we calculate electron number densities using a derivation outlined in Gillies et al. (20...
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ftulancaster:oai:eprints.lancs.ac.uk:80766 2024-05-19T07:39:38+00:00 Ionospheric electron number densities from CUTLASS dual-frequency velocity measurements using artificial backscatter over EISCAT Sarno-Smith, Lois K. Kosch, Michael Jurgen Yeoman, Timothy Rietveld, Michael 2016-08 application/pdf https://eprints.lancs.ac.uk/id/eprint/80766/ https://eprints.lancs.ac.uk/id/eprint/80766/1/SarnoSmith_JGR_2016_D6_revised_.pdf https://eprints.lancs.ac.uk/id/eprint/80766/4/Sarno_Smith_et_al_2016_Journal_of_Geophysical_Research_Space_Physics.pdf en eng https://eprints.lancs.ac.uk/id/eprint/80766/1/SarnoSmith_JGR_2016_D6_revised_.pdf https://eprints.lancs.ac.uk/id/eprint/80766/4/Sarno_Smith_et_al_2016_Journal_of_Geophysical_Research_Space_Physics.pdf Sarno-Smith, Lois K. and Kosch, Michael Jurgen and Yeoman, Timothy and Rietveld, Michael (2016) Ionospheric electron number densities from CUTLASS dual-frequency velocity measurements using artificial backscatter over EISCAT. Journal of Geophysical Research: Space Physics, 121 (8). pp. 8066-8076. ISSN 2169-9402 creative_commons_attribution_noncommercial_4_0_international_license creative_commons_attribution_4_0_international_license Journal Article PeerReviewed 2016 ftulancaster 2024-04-30T23:35:16Z Using quasi-simultaneous line-of-sight velocity measurements at multiple frequencies from the Hankasalmi Cooperative UK Twin Auroral Sounding System (CUTLASS) on the Super Dual Auroral Radar Network (SuperDARN), we calculate electron number densities using a derivation outlined in Gillies et al. (2010, 2012). Backscatter targets were generated using the European Incoherent Scatter (EISCAT) ionospheric modification facility at Tromsø, Norway. We use two methods on two case studies. The first approach is to use the dual-frequency capability on CUTLASS and compare line-of-sight velocities between frequencies with a MHz or greater difference. The other method used the kHz frequency shifts automatically made by the SuperDARN radar during routine operations. Using ray tracing to obtain the approximate altitude of the backscatter, we demonstrate that for both methods, SuperDARN significantly overestimates Ne compared to those obtained from the EISCAT incoherent scatter radar over the same time period. The discrepancy between the Ne measurements of both radars may be largely due to SuperDARN sensitivity to backscatter produced by localized density irregularities which obscure the background levels. Article in Journal/Newspaper EISCAT Tromsø Lancaster University: Lancaster Eprints |
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Open Polar |
collection |
Lancaster University: Lancaster Eprints |
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ftulancaster |
language |
English |
description |
Using quasi-simultaneous line-of-sight velocity measurements at multiple frequencies from the Hankasalmi Cooperative UK Twin Auroral Sounding System (CUTLASS) on the Super Dual Auroral Radar Network (SuperDARN), we calculate electron number densities using a derivation outlined in Gillies et al. (2010, 2012). Backscatter targets were generated using the European Incoherent Scatter (EISCAT) ionospheric modification facility at Tromsø, Norway. We use two methods on two case studies. The first approach is to use the dual-frequency capability on CUTLASS and compare line-of-sight velocities between frequencies with a MHz or greater difference. The other method used the kHz frequency shifts automatically made by the SuperDARN radar during routine operations. Using ray tracing to obtain the approximate altitude of the backscatter, we demonstrate that for both methods, SuperDARN significantly overestimates Ne compared to those obtained from the EISCAT incoherent scatter radar over the same time period. The discrepancy between the Ne measurements of both radars may be largely due to SuperDARN sensitivity to backscatter produced by localized density irregularities which obscure the background levels. |
format |
Article in Journal/Newspaper |
author |
Sarno-Smith, Lois K. Kosch, Michael Jurgen Yeoman, Timothy Rietveld, Michael |
spellingShingle |
Sarno-Smith, Lois K. Kosch, Michael Jurgen Yeoman, Timothy Rietveld, Michael Ionospheric electron number densities from CUTLASS dual-frequency velocity measurements using artificial backscatter over EISCAT |
author_facet |
Sarno-Smith, Lois K. Kosch, Michael Jurgen Yeoman, Timothy Rietveld, Michael |
author_sort |
Sarno-Smith, Lois K. |
title |
Ionospheric electron number densities from CUTLASS dual-frequency velocity measurements using artificial backscatter over EISCAT |
title_short |
Ionospheric electron number densities from CUTLASS dual-frequency velocity measurements using artificial backscatter over EISCAT |
title_full |
Ionospheric electron number densities from CUTLASS dual-frequency velocity measurements using artificial backscatter over EISCAT |
title_fullStr |
Ionospheric electron number densities from CUTLASS dual-frequency velocity measurements using artificial backscatter over EISCAT |
title_full_unstemmed |
Ionospheric electron number densities from CUTLASS dual-frequency velocity measurements using artificial backscatter over EISCAT |
title_sort |
ionospheric electron number densities from cutlass dual-frequency velocity measurements using artificial backscatter over eiscat |
publishDate |
2016 |
url |
https://eprints.lancs.ac.uk/id/eprint/80766/ https://eprints.lancs.ac.uk/id/eprint/80766/1/SarnoSmith_JGR_2016_D6_revised_.pdf https://eprints.lancs.ac.uk/id/eprint/80766/4/Sarno_Smith_et_al_2016_Journal_of_Geophysical_Research_Space_Physics.pdf |
genre |
EISCAT Tromsø |
genre_facet |
EISCAT Tromsø |
op_relation |
https://eprints.lancs.ac.uk/id/eprint/80766/1/SarnoSmith_JGR_2016_D6_revised_.pdf https://eprints.lancs.ac.uk/id/eprint/80766/4/Sarno_Smith_et_al_2016_Journal_of_Geophysical_Research_Space_Physics.pdf Sarno-Smith, Lois K. and Kosch, Michael Jurgen and Yeoman, Timothy and Rietveld, Michael (2016) Ionospheric electron number densities from CUTLASS dual-frequency velocity measurements using artificial backscatter over EISCAT. Journal of Geophysical Research: Space Physics, 121 (8). pp. 8066-8076. ISSN 2169-9402 |
op_rights |
creative_commons_attribution_noncommercial_4_0_international_license creative_commons_attribution_4_0_international_license |
_version_ |
1799479217974411264 |