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Title: Excitation and trapping of lower hybrid waves in striations

Abstract

The theory of lower hybrid (LH) waves trapped in striations in warm ionospheric plasma in the three-dimensional case is presented. A specific mechanism of trapping associated with the linear transformation of waves is discussed. It is shown analytically that such trapping can take place in elongated plasma depletions with the frequencies below and above the lower hybrid resonance frequency of the ambient plasma. The theory is applied mainly to striations generated artificially in ionospheric modification experiments and partly to natural plasma depletions in the auroral upper ionosphere. Typical amplitudes and transverse scales of the trapped LH waves excited in ionospheric modification experiments are estimated. It is shown that such waves possibly can be detected by backscattering at oblique sounding in very high frequency (VHF) and ultra high frequency (UHF) ranges.

Authors:
 [1];  [1]
  1. Lancaster University, Lancaster LA1 4WA (United Kingdom)
Publication Date:
OSTI Identifier:
21259729
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 15; Journal Issue: 12; Other Information: DOI: 10.1063/1.3035910; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; EXCITATION; IONOSPHERE; LOWER HYBRID CURRENT DRIVE; PLASMA; PLASMA WAVES; STRIATIONS; THREE-DIMENSIONAL CALCULATIONS; TRAPPING

Citation Formats

Borisov, N, Institute of Terrestrial Magnetism, Ionosphere and Radio Waves Propagation, and Honary, F. Excitation and trapping of lower hybrid waves in striations. United States: N. p., 2008. Web. doi:10.1063/1.3035910.
Borisov, N, Institute of Terrestrial Magnetism, Ionosphere and Radio Waves Propagation, & Honary, F. Excitation and trapping of lower hybrid waves in striations. United States. https://doi.org/10.1063/1.3035910
Borisov, N, Institute of Terrestrial Magnetism, Ionosphere and Radio Waves Propagation, and Honary, F. 2008. "Excitation and trapping of lower hybrid waves in striations". United States. https://doi.org/10.1063/1.3035910.
@article{osti_21259729,
title = {Excitation and trapping of lower hybrid waves in striations},
author = {Borisov, N and Institute of Terrestrial Magnetism, Ionosphere and Radio Waves Propagation and Honary, F},
abstractNote = {The theory of lower hybrid (LH) waves trapped in striations in warm ionospheric plasma in the three-dimensional case is presented. A specific mechanism of trapping associated with the linear transformation of waves is discussed. It is shown analytically that such trapping can take place in elongated plasma depletions with the frequencies below and above the lower hybrid resonance frequency of the ambient plasma. The theory is applied mainly to striations generated artificially in ionospheric modification experiments and partly to natural plasma depletions in the auroral upper ionosphere. Typical amplitudes and transverse scales of the trapped LH waves excited in ionospheric modification experiments are estimated. It is shown that such waves possibly can be detected by backscattering at oblique sounding in very high frequency (VHF) and ultra high frequency (UHF) ranges.},
doi = {10.1063/1.3035910},
url = {https://www.osti.gov/biblio/21259729}, journal = {Physics of Plasmas},
issn = {1070-664X},
number = 12,
volume = 15,
place = {United States},
year = {Mon Dec 15 00:00:00 EST 2008},
month = {Mon Dec 15 00:00:00 EST 2008}
}