First observation of the Transient Luminous Events effect on the ionospheric Schumann Resonance, based on the China Seismo-Electromagnetic Satellite
Abstract. In this study, we focus on the effect among the Transient Luminous Events (TLEs) at Luoding (22.76° N, 111.57° E), the lightnings by the World Wide Lightning Location Network, and the ionospheric electric field from the China Seismo-Electromagnetic Satellite. The results show that on September 25, 2021, the signal-to-noise ratio of the Schumann Resonance at the first mode of 6.5 Hz and the second mode of 13 Hz dropped below 2.5 during the TLEs. A significant enhancement of the energy in ULF occurred, and the power spectral density increased substantially. Distinct lightning whistler waves were found in VLF band, further indicating the energy could possibly be excited by the lightnings. Our results indicate that the observations of electric field from the satellite could possibly be utilized to monitor the lower atmospheric lightnings and their impact on the space environment.
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