scholarly journals Geomagnetic Conjugate Observations of Ionospheric Disturbances in response to North Korea Underground Nuclear Explosion on 3 September 2017

2018 ◽  
pp. 1-22
Author(s):  
Yi Liu ◽  
Chen Zhou ◽  
Qiong Tang ◽  
Guanyi Chen ◽  
Zhengyu Zhao
Keyword(s):  
Electric Field ◽  
North Korea ◽  
Nuclear Explosion ◽  
Test Site ◽  
Conjugate Points ◽  
Ionospheric Disturbances ◽  
Underground Nuclear Explosion ◽  
International Gnss Service ◽  
Electric Field Penetration ◽  
Field Penetration

<p><strong>Abstract.</strong> We report observations of ionospheric disturbances in response to North Korea underground nuclear explosion (UNE) on 3 September 2017. By using data from IGS (International GNSS Service) stations and Swarm satellite, geomagnetic conjugate ionospheric disturbances were observed. The observational evidences showed that UNE-generated ionospheric disturbances propagated radially from the UNE epicenter with the velocity of ~<span class="thinspace"></span>280<span class="thinspace"></span>m/s. We propose that the ionospheric disturbances are results of electrodynamic process caused by LAIC (Lithosphere-Atmosphere-Ionosphere Coupling) electric field penetration. LAIC electric field can also be mapped to the conjugate hemispheres along the magnetic field line and consequently cause ionospheric disturbances in conjugate regions. The UNE-generated LAIC electric field penetration plays an important role in the ionospheric disturbances in the region of the nuclear test site nearby and the corresponding geomagnetic conjugate points.</p>

scholarly journals Geomagnetic conjugate observations of ionospheric disturbances in response to a North Korean underground nuclear explosion on 3 September 2017

2019 ◽  
Vol 37 (3) ◽  
pp. 337-345
Author(s):  
Yi Liu ◽  
Chen Zhou ◽  
Qiong Tang ◽  
Guanyi Chen ◽  
Zhengyu Zhao
Keyword(s):  
Electric Field ◽  
Nuclear Explosion ◽  
Test Site ◽  
Conjugate Points ◽  
Ionospheric Disturbances ◽  
Underground Nuclear Explosion ◽  
International Gnss Service ◽  
Swarm Satellites ◽  
Electric Field Penetration ◽  
Field Penetration

Abstract. We report observations of ionospheric disturbances in response to a North Korean underground nuclear explosion (UNE) on 3 September 2017. By using data from IGS (International GNSS Service) stations and Swarm satellites, geomagnetic conjugate ionospheric disturbances were observed. The observational evidence showed that UNE-generated ionospheric disturbances propagated radially from the UNE epicenter with a velocity of ∼280 m s−1. We propose that the ionospheric disturbances are results of electrodynamic process caused by LAIC (lithosphere–atmosphere–ionosphere coupling) electric field penetration. The LAIC electric field can also be mapped to the conjugate hemispheres along the magnetic field line and consequently cause ionospheric disturbances in conjugate regions. The UNE-generated LAIC electric field penetration plays an important role in the ionospheric disturbances in the region of the nuclear test site nearby and the corresponding geomagnetic conjugate points.

One Dimensional Modeling of Radio Frequency Electric Field Penetration into Magnetized Plasmas

2012 ◽  
Vol 51 (9R) ◽  
pp. 096201 ◽  
Author(s):  
Takeshi Matsuoka ◽  
Timofei S. Rudenko ◽  
Ikkoh Funaki ◽  
Konstantin P. Shamrai ◽  
Takahiro Nakamura ◽  
...  
Keyword(s):  
Electric Field ◽  
Radio Frequency ◽  
Magnetized Plasmas ◽  
One Dimensional ◽  
Dimensional Modeling ◽  
Electric Field Penetration ◽  
Frequency Electric Field ◽  
Field Penetration
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