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Volume 34, issue 9
Ann. Geophys., 34, 815–829, 2016
https://doi.org/10.5194/angeo-34-815-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Ann. Geophys., 34, 815–829, 2016
https://doi.org/10.5194/angeo-34-815-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Regular paper 21 Sep 2016

Regular paper | 21 Sep 2016

Numerical study of the generation and propagation of ultralow-frequency waves by artificial ionospheric F region modulation at different latitudes

Xiang Xu et al.
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Cited articles  
Agrawal, D. and Moore, R. C.: Dual-beam ELF wave generation as a function of power, frequency, modulation waveform, and receiver location, J. Geophys. Res., 117, A12305, https://doi.org/10.1029/2012JA018061, 2012.
Banks, P. M. and Kocharts, G.: Aeronomy, Part A and Part B, New York, Academic Press, 1973.
Barr, R., Stubbe, P., and Kopka, H.: Long-range detection of VLF radiation produced by heating the auroral electrojet, Radio Sci., 26, 871–897, https://doi.org/10.1029/91RS00777, 1991.
Bernhardt, P. A. and Duncan, L. M.: The feedback-diffraction theory of ionospheric heating, J. Atmos. Sol.-Terr. Phy., 44, 1061–1074, https://doi.org/10.1016/0021-9169(82)90018-6, 1982.
Cohen, M. B., Moore, R. C., Golkowski, M., and Lehtinen N. G.: ELF/VLF wave generation from the beating of two HF ionospheric heating sources, J. Geophys. Res., 117, A12310, https://doi.org/10.1029/2012JA018140, 2012.
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ULF waves can be generated by modulated HF heating in the ionospheric F region, which has long been considered for secure communication with submarines. In this paper we study the effects of background parameters on the process of ULF wave generation and propagation by using a numerical simulation. We find that wave radiation efficiency is higher in the daytime ionosphere at lower latitudes, while ground wave intensity is larger in the nighttime ionosphere with lower modulation frequency.
ULF waves can be generated by modulated HF heating in the ionospheric F region, which has long...
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