Full-scale simulation study of the generation of topside ionospheric turbulence using a generalized Zakharov model

Bengt Eliasson

doi:10.1029/2008GL033866

Full-scale simulation study of the generation of topside ionospheric turbulence using a generalized Zakharov model

Bengt Eliasson

Research output: Contribution to journal › Article

17 Citations (Scopus)

Abstract

We present a full-scale simulation study of the generation of topside electrostatic turbulence observed near the F region peak during ground based ionospheric heating experiments. The study is performed using a generalized Zakharov model. The nonlinear tunneling of electromagnetic waves through the ionospheric layer is attributed to multiple-stage parametric decay and mode-conversion processes. At the bottomside of the F region, electrostatic turbulence excited by the parametric instability results in the conversion of the ordinary (O mode) wave into a large amplitude extraordinary (Z mode) wave propagating through the F peak. At the topside interaction region, the Z mode undergoes parametric decay process that results in the generation of the topside electrostatic turbulence and then conversion process yielding O waves that escape the plasma. This study may explain the observed topside ionospheric turbulence during ground based low duty cycle ionospheric heating experiments where the heater beam is directed far away from the Spitze region.

Language	English
Article number	L11104
Number of pages	5
Journal	Geophysical Research Letters
Volume	35
Issue number	11
DOIs	10.1029/2008GL033866
Publication status	Published - 11 Jun 2008

Fingerprint

ionospherics

ionospheric heating

turbulence

F region

electrostatics

simulation

heating

electromagnetic wave

decay

heaters

escape

electromagnetic radiation

experiment

plasma

cycles

interactions

Keywords

ionospheric turbulence
simulation
generalized Zakharov model
topside turbulence

Cite this

Eliasson, B. (2008). Full-scale simulation study of the generation of topside ionospheric turbulence using a generalized Zakharov model. Geophysical Research Letters, 35(11), [L11104]. https://doi.org/10.1029/2008GL033866

Eliasson, Bengt. / Full-scale simulation study of the generation of topside ionospheric turbulence using a generalized Zakharov model. In: Geophysical Research Letters. 2008 ; Vol. 35, No. 11.

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Eliasson, B 2008, 'Full-scale simulation study of the generation of topside ionospheric turbulence using a generalized Zakharov model' Geophysical Research Letters, vol. 35, no. 11, L11104. https://doi.org/10.1029/2008GL033866

Full-scale simulation study of the generation of topside ionospheric turbulence using a generalized Zakharov model. / Eliasson, Bengt.

In: Geophysical Research Letters, Vol. 35, No. 11, L11104, 11.06.2008.

Research output: Contribution to journal › Article

TY - JOUR

T1 - Full-scale simulation study of the generation of topside ionospheric turbulence using a generalized Zakharov model

AU - Eliasson, Bengt

PY - 2008/6/11

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N2 - We present a full-scale simulation study of the generation of topside electrostatic turbulence observed near the F region peak during ground based ionospheric heating experiments. The study is performed using a generalized Zakharov model. The nonlinear tunneling of electromagnetic waves through the ionospheric layer is attributed to multiple-stage parametric decay and mode-conversion processes. At the bottomside of the F region, electrostatic turbulence excited by the parametric instability results in the conversion of the ordinary (O mode) wave into a large amplitude extraordinary (Z mode) wave propagating through the F peak. At the topside interaction region, the Z mode undergoes parametric decay process that results in the generation of the topside electrostatic turbulence and then conversion process yielding O waves that escape the plasma. This study may explain the observed topside ionospheric turbulence during ground based low duty cycle ionospheric heating experiments where the heater beam is directed far away from the Spitze region.

AB - We present a full-scale simulation study of the generation of topside electrostatic turbulence observed near the F region peak during ground based ionospheric heating experiments. The study is performed using a generalized Zakharov model. The nonlinear tunneling of electromagnetic waves through the ionospheric layer is attributed to multiple-stage parametric decay and mode-conversion processes. At the bottomside of the F region, electrostatic turbulence excited by the parametric instability results in the conversion of the ordinary (O mode) wave into a large amplitude extraordinary (Z mode) wave propagating through the F peak. At the topside interaction region, the Z mode undergoes parametric decay process that results in the generation of the topside electrostatic turbulence and then conversion process yielding O waves that escape the plasma. This study may explain the observed topside ionospheric turbulence during ground based low duty cycle ionospheric heating experiments where the heater beam is directed far away from the Spitze region.

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JO - Geophysical Research Letters

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