Correlation of very low and low frequency signal variations at mid-latitudes with magnetic activity and outer-zone particles

The disturbances of very low and low frequency signals in the lower mid-latitude ionosphere caused by magnetic storms, proton bursts and relativistic electron fluxes are investigated on the basis of VLF-LF measurements obtained in the Far East and European networks. We have found that magnetic storm...

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Bibliographic Details
Published in:Annales geophysicae (1988) 2014-12, Vol.32 (12), p.1455-1462
Main Authors: Rozhnoi, A, Solovieva, M, Fedun, V, Hayakawa, M, Schwingenschuh, K, Levin, B
Format: Article
Language:English
Subjects:
Anomalies
Boards
Case studies
Correlation
Earthquakes
Electron density
Electron flux
Energetic particles
Geomagnetic activity
Geomagnetism
Geophysics
GOES satellites
Identification
Ionosphere
Low frequencies
Low frequency
Magnetic storms
Networks
Onboard
Particle physics
Satellites
Storms
Transmitters
Tsunamis
Typhoons
Variation
Very Low Frequencies
X-rays
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Summary:The disturbances of very low and low frequency signals in the lower mid-latitude ionosphere caused by magnetic storms, proton bursts and relativistic electron fluxes are investigated on the basis of VLF-LF measurements obtained in the Far East and European networks. We have found that magnetic storm (-150 < Dst < -100 nT) influence is not strong on variations of VLF-LF signals. The anomalies with negative amplitude were registered during the main and recovery phases for several magnetic storms (mainly for three northernmost paths). The correlation between VLF-LF signals and geomagnetic activity is rather weak even for these paths ( approximately 12-18%). Also, the correlation between magnetic activity and VLF signal variations recorded onboard the DEMETER satellite is not found. The significant influence of outer-zone particles (energetic particle sensor on board/Geostationary Operational Environmental Satellite (GOES) measurements) on the VLF-LF signal variations is found for almost half of the sub-ionospheric paths.
ISSN:1432-0576
0992-7689
1432-0576
DOI:10.5194/angeo-32-1455-2014