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  • ASR 2018 - Alireza

    Rights statement: 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, 64, 1, 2019 DOI: 10.1016/j.asr.2019.03.028

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Investigation of incoherent scatter radar spectra features with stimulated electromagnetic emissions at EISCAT

Research output: Contribution to journalJournal article

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  • A. Mahmoudian
  • A. Senior
  • M. Kosch
  • W.A. Scales
  • M.T. Rietveld
  • B. Isham
  • X. Shi
  • M. Ruohoniemi
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<mark>Journal publication date</mark>1/07/2019
<mark>Journal</mark>Advances in Space Research
Issue number1
Volume64
Number of pages12
Pages (from-to)159-170
Publication statusPublished
Early online date28/03/19
Original languageEnglish

Abstract

Electromagnetic (EM) and electrostatic (ES) emissions can be generated in the ionosphere by high-power high-frequency (HF) radio waves transmitted from the ground. The signatures of the EM emissions observed on the ground are known as Stimulated Electromagnetic Emissions (SEE) and can be employed for remote measurement of ionospheric parameters. The experimental data from recent HF heating experiments near the fourth electron gyro-frequency (4f ce ) at EISCAT are presented. This paper compares the temporal behavior of SEE within a few Hertz up to 50 kHz of the transmission frequency to the time evolution of enhanced ion line (EHIL) in the incoherent scatter radar (ISR) spectrum. The correlation of Wideband SEE (WSEE) spectral lines within 1 kHz to 100 kHz such as the downshifted maximum (DM), downshifted peak (DP), and broad upshifted maximum (BUM), with HF enhanced ion lines (EHIL) is shown. It is shown that WSEE spectral lines can be used to reproduce the EHIL characteristics including altitude range, rise and decay time, maximum and minimum amplitude. A data reduction technique is developed to derive ionospheric parameters such as the electron density profile near the interaction altitude, magnetic field strength B 0 as well as the altitude profile of the EHIL using the temporal evolution of WSEE spectral lines near nf ce . © 2019 COSPAR

Bibliographic note

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, 64, 1, 2019 DOI: 10.1016/j.asr.2019.03.028