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Analysis of ground-based very low frequency signal recorded onboard CSES satellite

Mohammed Boudjada 1 Hans Eichelberger 1 Xuemin Zhang 2 Werner Magnes 1 Valery Denisenko 3 Andreas Pollinger 1 Patrick H. M. Galopeau 4 Konrad Schwingenschuh 1 Bruno Besser 1
1 OeAW - Austrian Academy of Sciences
2 CEA - China Earthquake Administration
3 FRC - Federal Research Center Krasnoyarsk Scientific Center
4 HELIOS - LATMOS
LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales
Abstract : We report on the wave spectral intensity variations associated to very low frequency (VLF) signal observed during the minimum of solar cycle 25. The VLF signal is emitted by the ground-based NWC radio station localized in the southern hemisphere, at −21.5°S and 114°E. The variation of NWC radio signals is daily detected by the electric field experiment EFD onboard the China Seismo-Electromagnetic Satellite (CSES). This satellite has an altitude of about 507 km in a polar and circular sun-synchronous orbit with local time nodes of 02 LT and 14 LT. We study the spectral intensity variations at the frequency of 19.79 kHz in three specific regions: above the NWC station, around the magnetic equatorial plane, and at the conjugate point. We analyze the electric flux above those key regions and estimate the corresponding intensity levels.
Keywords : Time-frequency analysis Magnetic flux Propagation Satellite broadcasting Radio transmitters Orbits Electric fields
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Conference papers
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https://hal-insu.archives-ouvertes.fr/insu-03426982
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Submitted on : Friday, November 12, 2021 - 6:01:42 PM
Last modification on : Tuesday, January 4, 2022 - 6:43:11 AM

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INSU | LATMOS | CEA | GS-GEOSCIENCES | SORBONNE-UNIVERSITE | GS-ENGINEERING | SU-SCIENCES | UVSQ | INSTITUT-SCIENCES-LUMIERE | CNRS

Citation

Mohammed Boudjada, Hans Eichelberger, Xuemin Zhang, Werner Magnes, Valery Denisenko, et al.. Analysis of ground-based very low frequency signal recorded onboard CSES satellite. 2021 Kleinheubach Conference, Sep 2021, Miltengerg, Germany. ⟨10.23919/IEEECONF54431.2021.9598373⟩. ⟨insu-03426982⟩

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