Articles | Volume 20
21 Mar 2023
 | 21 Mar 2023

Case study of radio emission beam associated to very low frequency signal recorded onboard CSES satellite

Mohammed Y. Boudjada, Hans U. Eichelberger, Emad Al-Haddad, Werner Magnes, Patrick H. M. Galopeau, Xuemin Zhang, Andreas Pollinger, and Helmut Lammer

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Cited articles

Boudjada, M. Y., Schwingenschuh, K., Al-Haddad, E., Parrot, M., Galopeau, P. H. M., Besser, B., Stangl, G., and Voller, W.: Effects of solar and geomagnetic activities on the sub-ionospheric very low frequency transmitter signals received by the DEMETER micro-satellite, Ann. Geophys.-Italy, 55, 49–55, 2012. 
Davies, K.: Ionospheric radio propagation, NBS Monograph., 80, 407 pp., ISBN 978-1124067056, 1965. 
Davies, K.: Ionospheric Radio, The Institution of Engineering and Technology, London, United Kingdom, ISBN 978-0-86341-186-1, 2008. 
Feng, J., Han, B., Gao, F., Zhang, T., and Zhao, Z.: Analysis of global ionospheric response to solar flares based on total electron content and very low frequency signals, IEEE Access, 9, 57618–57631,, 2021. 
Short summary
We investigate the variation of the electric power density linked to VLF signals emitted by NWC transmitter. The power density measurements were detected by the Electric Field Detector (EFD) instrument onboard CSES satellite above NWC station and its conjugate region (CR). The beam is subject to disturbances and modulations in CR. Above the NWC station, the beam can be considered as a hollow cone with inconsistency dependence of the half-opening angle on the electric power density.