Articles | Volume 33, issue 11
https://doi.org/10.5194/angeo-33-1457-2015
© Author(s) 2015. 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-33-1457-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Regular paper
| 
30 Nov 2015
Regular paper |
| 30 Nov 2015
Sub-ionospheric VLF signal anomaly due to geomagnetic storms: a statistical study
K. Tatsuta
Department of Communication Engineering and Informatics, The University of Electro-Communications, Tokyo, Japan
Y. Hobara
CORRESPONDING AUTHOR
Department of Communication Engineering and Informatics, The University of Electro-Communications, Tokyo, Japan
Earth Environment Research Station, The University of Electro-Communications, Tokyo, Japan
S. Pal
Department of Communication Engineering and Informatics, The University of Electro-Communications, Tokyo, Japan
Indian Centre for Space Physics, Kolkata, India
M. Balikhin
Department of Automatic Control and Systems Engineering, University of Sheffield, Sheffield, UK
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Cited
25 citations as recorded by crossref.
- Probing geomagnetic storm-driven magnetosphere–ionosphere dynamics in D-region via propagation characteristics of very low frequency radio signals V. Nwankwo et al. https://doi.org/10.1016/j.jastp.2016.04.014
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- Low‐Latitude VLF Radio Signal Disturbances Due to the Extremely Severe Cyclone Fani of May 2019 and Associated Mesospheric Response S. Pal et al. https://doi.org/10.1029/2019JA027288
- D-region ionospheric disturbances associated with the Extremely Severe Cyclone Fani over North Indian Ocean as observed from two tropical VLF stations B. Das et al. https://doi.org/10.1016/j.asr.2020.09.018
- Diagnostic study of geomagnetic storm-induced ionospheric changes over very low-frequency signal propagation paths in the mid-latitude D region V. Nwankwo et al. https://doi.org/10.5194/angeo-40-433-2022
- Variations in parameters of low-frequency signals on a mid-latitude radio path during geomagnetic storms caused by high-speed solar wind streams from coronal holes M. Solovieva et al. https://doi.org/10.12737/stp-123202605
- First Detection of Global Ionospheric Disturbances Associated with the Most Powerful Gamma Ray Burst GRB221009A S. Pal et al. https://doi.org/10.3390/atmos14020217
- Contaminated Effect of Geomagnetic Storms on Pre-Seismic Atmospheric and Ionospheric Anomalies during Imphal Earthquake S. Biswas et al. https://doi.org/10.4236/ojer.2020.95022
- Long-lasting disturbances in the mid-latitude sub-ionospheric VLF radio signals due to the super geomagnetic storm of 17 March 2015 S. Mondal et al. https://doi.org/10.1016/j.asr.2021.04.044
- Effects of the major sudden stratospheric warming event of 2009 on the subionospheric very low frequency/low frequency radio signals S. Pal et al. https://doi.org/10.1002/2016JA023813
- VLF radio signal anomaly associated with geomagnetic storm followed by an earthquake at a subtropical low latitude station in northeastern part of India B. Das et al. https://doi.org/10.1007/s12648-020-01966-2
- An Amateur-Radio-Based Open-Source (HW/SW) VLF/LF Receiver for Lower Ionosphere Monitoring, Examples of Identified Perturbations F. Malkotsis et al. https://doi.org/10.3390/foundations2030044
- A Review of What Can Be Learnt from Tweeks and Related Topics M. Rycroft https://doi.org/10.3390/atmos17020152
- Mid-latitude atmosphere and ionosphere connection as revealed by very low frequency signals S. Pal & Y. Hobara https://doi.org/10.1016/j.jastp.2015.12.008
- Variations in the parameters of mid-latitude subionospheric VLF signals during strong magnetic storms as observed in Kamchatka M. Solovieva et al. https://doi.org/10.21455/gr2026.1-2
- Case study on low-frequency time-code signal during the 10–15 November 2025 geomagnetic storm: observations and analysis X. Wang et al. https://doi.org/10.3389/fspas.2026.1844570
- Response of the Sub-Ionospheric VLF Signals to the Super Cyclonic Storm Amphan: First Observation from Indian Subcontinent B. Das et al. https://doi.org/10.1016/j.jastp.2021.105668
- Multiple-Band Electric Field Response to the Geomagnetic Storm on 4 November 2021 J. Zheng et al. https://doi.org/10.3390/rs16183497
- Low-latitude sub-ionospheric VLF radio signal disturbances due to solar flares: Effects on the attenuation and phase velocities of the waveguide modes K. Barman et al. https://doi.org/10.1016/j.jastp.2025.106433
Latest update: 11 Oct 2026
Short summary
We study the effect of geomagnetic storms on the sub-ionospheric VLF/LF propagations based on 2-year data from the network observations in Japan. Three statistical parameters such as average signal amplitude, variability of the signal amplitude, and nighttime fluctuation were calculated. These statistical parameters indicate significant anomalies during the geomagnetic storm in the high-latitude paths. While mid-latitude and low-mid latitude paths have smaller influence from the storm activity.
We study the effect of geomagnetic storms on the sub-ionospheric VLF/LF propagations based on...
