Multi-frequency SuperDARN radar observations of the modulated ionosphere by high-power radio-waves at EISCAT

Mahmoudian, A. and Yeoman, T.K. and Senior, A. and Kosch, M.J. and Scales, W.A. and Shi, X. and Ruohoniemi, M. and Rietveld, M.T. (2020) Multi-frequency SuperDARN radar observations of the modulated ionosphere by high-power radio-waves at EISCAT. Advances in Space Research, 65 (12). pp. 2791-2799. ISSN 0273-1177

[img]
Text (ASR manuscript - final)
ASR_manuscript_final.pdf - Accepted Version
Restricted to Repository staff only until 2 April 2021.
Available under License Creative Commons Attribution-NonCommercial-NoDerivs.

Download (6MB)

Abstract

This paper presents the first joint observations of multi-frequency SuperDARN (Super Dual Auroral Radar Network) radar of the heated ionosphere by high-power high-frequency (HF) ground-based radio-waves along with the stimulated electromagnetic emissions (SEE) measurements. The unique heating experiment design at EISCAT (The European Incoherent Scatter Scientific Association) including fine frequency stepping through the fourth electron gyro-frequency (4f ce) provided the opportunity to directly determine the plasma waves responsible for SuperDARN radar echoes. Past experiments using a unique Kodiak SuperDARN receiver in Alaska with capability of data recording over a large bandwidth of frequencies different from the radar transmission frequency was able to detect some radar echoes due to pump-excited plasma waves. However, a precise characterization of these waves could not be reached in the past. Comparison of the behavior of the SEE data measured on the ground besides the multi-frequency SuperDARN observations above the heated ionosphere at EISCAT has shown a good correlation with the characteristics of upper-hybrid (UH)/electron Bernstein (EB) waves excited through parametric decay instability. The ray tracing model based on the EISCAT dynasonde data of the background ionospheric parameters has been used in order to determine the natural ionospheric effects on the propagation path of 9.9 MHz, 13.2 MHz, and 16.6 MHz signals associated with SuperDARN radar. By providing a more direct connection between SuperDARN echoes and the associated SEE measurements, this new technique potentially provides more quantitative characterization of plasma waves generated during ionospheric heating.

Item Type:
Journal Article
Journal or Publication Title:
Advances in Space Research
Additional Information:
This is the author’s version of a work that was accepted for publication in Advances in Space Research. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Advances in Space Research, 65, 12, 2020 DOI: 10.1016/j.asr.2020.03.020
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2200/2202
Subjects:
ID Code:
143260
Deposited By:
Deposited On:
29 Apr 2020 09:30
Refereed?:
Yes
Published?:
Published
Last Modified:
07 Jul 2020 07:20