Articles | Volume 34, issue 9
https://doi.org/10.5194/angeo-34-815-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/angeo-34-815-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Numerical study of the generation and propagation of ultralow-frequency waves by artificial ionospheric F region modulation at different latitudes
Xiang Xu
Department of Space Physics, School of Electronic Information, Wuhan
University, Wuhan 430072, China
Department of Space Physics, School of Electronic Information, Wuhan
University, Wuhan 430072, China
Run Shi
Department of Space Physics, School of Electronic Information, Wuhan
University, Wuhan 430072, China
Binbin Ni
Department of Space Physics, School of Electronic Information, Wuhan
University, Wuhan 430072, China
Zhengyu Zhao
Department of Space Physics, School of Electronic Information, Wuhan
University, Wuhan 430072, China
Yuannong Zhang
Department of Space Physics, School of Electronic Information, Wuhan
University, Wuhan 430072, China
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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...