Journal ArticleDOI
The excitation of plasma waves and irregularities in the ionosphere by means of high power radio waves
TLDR
In this paper, results of some recent ionospheric modification experiments undertaken with the Max-Planck Institut fur Aeronomie (Lindau) high power facility at Tromso, Norway, are reviewed.Abstract:
High power radio waves are capable of exciting a variety of parametric plasma instabilities in the ionosphere. Certain instabilities of this type result in the generation of electrostatic plasma waves and plasma density irregularities. These generation processes are often accompanied by strong anomalous absorption of the high power radio waves and this, in turn, gives rise to the large scale modification of the temperature and density of the ionospheric plasma. Results of some recent ionospheric modification experiments undertaken with the Max-Planck Institut fur Aeronomie (Lindau) high power facility at Tromso, Norway, are reviewed. The interpretation of these results in terms of the nonlinear development and saturation of the plasma instabilities involved is also discussed.read more
Citations
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Journal ArticleDOI
The heating of the high lattitude ionosphere by high power radio waves
TL;DR: The role played by the anomalous absorption of the high power wave is discussed in this article, with the relative importance of collisional and anomalous heating at the high latitude site is examined.
Journal ArticleDOI
Ionospheric plasma response to HF radio waves operating at frequencies close to the third harmonic of the electron gyrofrequency
TL;DR: In this article, European incoherent scatter observations of heater-induced electron temperature enhancements, anomalous absorption of low power HF probe waves, and the spectrum of stimulated electromagnetic emission (SEE) in the sidebands of a high power HF electromagnetic wave are presented.
Journal ArticleDOI
EISCAT observations of large scale electron temperature and electron density perturbations caused by high power HF radio waves
TL;DR: In this article, EISCAT observations of the effect of artificial modification on the F-region electron temperature and electron density during several heating experiments at Tromso are reported, indicating variations in the balance between the transport and chemical effects.
Journal ArticleDOI
Anomalous absorption during artificial modification at harmonics of the electron gyrofrequency
TL;DR: In this paper, the anomalous absorption of low-power probe waves caused by the action of a high-power HF ordinary mode radio wave was observed and compared with that derived from the International Geomagnetic Reference Field (IGRF) magnetic field model.
Journal ArticleDOI
EISCAT Observations of Electron Temperature Oscillations Due to the Action of High Power HF Radio Waves
TL;DR: In this article, it was shown that the coupled electron temperature and electron density oscillation is driven by chemical perturbation rather than the self focusing instability found in transport dominated regions, and the strongest fluctuations have periods of 2-5 min with scale sizes perpendicular to the magnetic field of between 6 and 10 km.
References
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Book
The propagation of electromagnetic waves in plasmas.
TL;DR: In this paper, an open-diagram technique is introduced which simplifies the calculation of absorptive parts of the conductivity tensor for long-wavelength electromagnetic waves in uniform, weakly interacting plasmas near equilibrium in the absence of external magnetic fields.
Journal ArticleDOI
Nonlinear phenomena in the ionosphere
TL;DR: In this article, the authors present a review of the structure of the ionosphere and its properties, including the effect of nonlinearity on the Amplitude and Phase of the Wave.
Book
Nonlinear phenomena in the ionosphere
TL;DR: In this paper, the authors present a review of the structure of the ionosphere and its properties, including the effect of nonlinearity on the Amplitude and Phase of the Wave.
Journal ArticleDOI
Ionospheric modification and parametric instabilities
TL;DR: In this paper, the authors derived thresholds and linear growth rates for stimulated Brillouin and Raman scattering and for the parametric decay instability by using arguments of energy transfer.
Journal ArticleDOI
Ionospheric modification experiments in northern Scandinavia
Peter Stubbe,H. Kopka,H. Lauche,Michael T. Rietveld,Asgeir Brekke,O. Holt,T. B. Jones,Thompson G. Robinson,Å. Hedberg,Bo Thidé,Marcel Crochet,H.-J. Lotz +11 more
TL;DR: The Ramfjordmoen heating facility at Tromso, Norway is briefly described in this article, and a survey is given of the experiments performed with this facility until now.