Abstract
| Original language | English |
|---|---|
| Article number | L11104 |
| Number of pages | 5 |
| Journal | Geophysical Research Letters |
| Volume | 35 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 11 Jun 2008 |
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Keywords
- ionospheric turbulence
- simulation
- generalized Zakharov model
- topside turbulence
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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
Y1 - 2008/6/11
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.
KW - ionospheric turbulence
KW - simulation
KW - generalized Zakharov model
KW - topside turbulence
UR - http://onlinelibrary.wiley.com/doi/10.1029/2008GL033866/abstract
U2 - 10.1029/2008GL033866
DO - 10.1029/2008GL033866
M3 - Article
VL - 35
JO - Geophysical Research Letters
JF - Geophysical Research Letters
SN - 0094-8276
IS - 11
M1 - L11104
ER -