The influence of the ionospheric disturbance on the ground based VLF transmitter signal recorded by LEO satellite – Insight from full wave simulation
The influence of the ionospheric disturbance on the ground based VLF transmitter signal recorded by LEO satellite – Insight from full wave simulation
复制标题
电离层扰动对LEO卫星记录的地基VLF发射机信号的影响——全波模拟的启示
DOI：
10.1016/j.rinp.2020.103391
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发表时间：
2020-12
影响因子：
5.3
通讯作者：
Feng Wang
中科院分区：
文献类型：
--
作者：
Shufan Zhao;Xuhui Shen;Chen Zhou;Li Liao;Zeren Zhima;Feng Wang
地震可引起D/E层、F层甚至顶侧电离层电子密度扰动。随后，电离层扰动将改变地面甚低频发射机的电磁场。目前，低轨卫星记录的电磁场已被频繁地用于研究可能的地震异常。从理论上系统地研究电离层扰动对低轨卫星高度场的影响是十分必要的。本文建立了一个全波模型，模拟了电离层扰动的幅度、高度和尺度对地基甚低频发射机电离层电磁场的影响。结果表明，当电波在D/E层中遇到电离层扰动时，卫星高度上的电磁场会发生明显的变化。电磁场的变化随电离层扰动的幅度和尺度的增大而增大。而F层的电离层扰动对电磁场的影响只是局部的。夜间电离层扰动对电磁场变化的影响比白天小。这些结论对利用卫星电磁场观测研究地震异常具有一定的参考价值。
The earthquakes could induce ionospheric electron density disturbance at D/E, F layer and even topside of ionosphere. Subsequently the ionospheric disturbance would change the electromagnetic field from the ground based VLF transmitter. Nowadays, the electromagnetic field recorded by Low earth orbit (LEO) satellite have been used to study the possible seismic anomalies frequently. It is essential to study systematically how the ionospheric disturbance influences the electromagnetic field at the altitude of LEO satellite theoretically. In this paper, we construct a full wave model to simulate the influence of the amplitude, altitude, and scale of the ionospheric disturbance on the electromagnetic field in the ionosphere from the ground based VLF transmitter. The result shows the electromagnetic field at the altitude of satellite changes obviously when the wave encounters an ionospheric disturbance in the D/E layer. The variation of the electromagnetic field increases with the amplitude and scale of the ionospheric disturbance. However, the influence of the ionospheric disturbance in the F layer just has a local effect on the electromagnetic field. The influence of ionospheric disturbance in the nighttime on the variation of electromagnetic field is smaller compared with it in the daytime. These conclusions can improve our understanding of using electromagnetic field observed by satellite to study seismic anomalies.
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影响因子：
5.2
作者：
N. Lehtinen;U. Inan
通讯作者：
N. Lehtinen;U. Inan
DOI：
10.1029/2019ja026640
发表时间：
2017-03
期刊：
Journal of Geophysical Research: Space Physics
影响因子：
--
作者：
Shinhachiro Goto;Ryoma Uchida;K. Igarashi;Chia‐Hung Chen;Minghui Kao;K. Umeno
通讯作者：
Shinhachiro Goto;Ryoma Uchida;K. Igarashi;Chia‐Hung Chen;Minghui Kao;K. Umeno
影响因子：
--
作者：
B. Zhao;Min Wang;T. Yu;W. Wan;J. Lei;Libo Liu;B. Ning
通讯作者：
B. Zhao;Min Wang;T. Yu;W. Wan;J. Lei;Libo Liu;B. Ning
影响因子：
3
作者：
Marchetti, Dedalo;De Santis, Angelo;Huang, Jianping
通讯作者：
Huang, Jianping
DOI：
10.1016/0021-9169(66)90088-2
发表时间：
1966-06
影响因子：
1.9
作者：
F. Horner
通讯作者：
F. Horner