CLUSTER observations of lower hybrid waves excited at high altitudes by electromagnetic whistler mode signals from the HAARP facility
نویسندگان
چکیده
منابع مشابه
Numerical study of mode conversion between lower hybrid and whistler waves on short-scale density striations
[1] We present a theoretical and numerical study of linear mode conversion of lower hybrid waves interacting with short-scale density striations in the Earth’s ionosphere. The efficiency of the conversion process is investigated for different sets of parameters such as the angle of incidence, the wavelength of the lower hybrid wave, and the size of the striation. It is found that the most effic...
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Experimental results are presented which show that r.f. power at frequencies near the lower hybrid frequency couples resonantly into a standing whistler wave. For an input power flux of less than 5 W densities above 10” cm-3 with close to 100% ionization have been achieved. Measured density, temperatures and wave fields are presented and are used as input parameters for a theoretical model. 1. ...
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Extensive optical observations have been carried out at the High Frequency Active Auroral Research Program (HAARP) ionospheric heating facility since it began operations in 1999. A number of modern optical diagnostic instruments are hosted at remote sites as well as the main transmitter facility, which has recently been expanded from the initial 960 kW prototype configuration to its full 3.6 MW...
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9 Broadband whistler waves in the frequency range 7-10 kHz and 15-19 kHz, generated by 10 F-region CW HF ionospheric heating in the absence of electrojet currents, were detected 11 by the DEMETER satellite overflying the HAARP transmitter during HAARP/BRIOCHE 12 campaigns. The whistler waves are in a frequency range corresponding to the F-region 13 Lower-Hybrid (LH) frequency and its harmonic g...
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ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 2004
ISSN: 0094-8276
DOI: 10.1029/2003gl018855