Journal ArticleDOI
Observations of intensity variations and harmonics of heater induced VLF waves
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TLDR
In this article, very low frequency (VLF) radio waves have been generated in the ionosphere by the heating facility near Tromso, in Northern Finland, about 100 km from the heating transmitter.About:
This article is published in Journal of Atmospheric and Solar-Terrestrial Physics.The article was published on 1997-12-01. It has received 11 citations till now. The article focuses on the topics: Very low frequency & Radio wave.read more
Citations
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Journal ArticleDOI
The relationship between geophysical conditions and ELF amplitude in modulated heating experiments at HAARP: Modeling and experimental results
TL;DR: In this paper, the authors used additional diagnostics from a radar, riometer, ionosonde, and magnetometer chain to understand how ionospheric conditions affect ELF generation.
Journal ArticleDOI
Relationship between electrojet current strength and ELF signal intensity in modulated heating experiments
TL;DR: In this article, the authors investigated the relationship between the intensity of the HAARP-generated ELF signal and the strength of the east-west component of the auroral electrojet as measured by a ground-based magnetometer.
Journal ArticleDOI
Features of amplitude and Doppler frequency variation of ELF/VLF waves generated by “beat‐wave” HF heating at high latitudes
TL;DR: In this article, the authors show that the amplitudes of ELF waves depend on the auroral electrojet current strength and that electrojet currents may affect the ELF/VLF wave generation.
ELF/VLF phased array generation via frequency-matched steering of a continuous HF ionospheric heating beam
TL;DR: In this paper, the authors utilize theoretical models of the high frequency (HF, 3-10 MHz) heating of the lower ionosphere (60-100 km altitude) to illuminate the observations and identify the physical mechanisms underlying the wave generation.
Proceedings ArticleDOI
The relationship between geophysical conditions and ELF amplitude in modulated heating experiments at HAARP: Modeling and experimental results
TL;DR: In this paper, the authors use diagnostics from a radar, riometer, ionosonde, and magnetometer chain to understand how natural conditions affect ELF generation and present results of statistical models that show ELF amplitude is proportional to magnetometer measurements.
References
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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.
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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
Introduction to ionospheric heating at Tromsø—I. Experimental overview
TL;DR: The EISCAT ionospheric modification (heating) facility at Ramfjordmoen will become a part of the IEEE 802.11 association from January 1993 as discussed by the authors.
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.
Journal ArticleDOI
ELF and VLF wave generation by modulated HF heating of the current carrying lower ionosphere
TL;DR: In this article, the authors present further experimental results on ionospheric current modulation, using powerful amplitude modulated HF waves produced by the new heating facility at Ramfjordmoen near Tromso, Norway.
Related Papers (5)
High‐latitude geophysical studies with satellite Injun 3: 5. Very‐low‐frequency electromagnetic radiation
D. A. Gurnett,B. J. O'Brien +1 more