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Remote Sensing of TLEs by Satellite ELF/VLF Wave Measurements

François Lefeuvre 1 R.A. Marshall 2 Jean-Louis Pinçon 1 U.S. Inan 2 Dominique Lagoutte 1 Michel Parrot 1 Jean-Jacques Berthelier 3
1 LPCE - Laboratoire de physique et chimie de l'environnement
2 STAR Lab - Space, Telecommunications, and Radioscience Laboratory
3 CETP - Centre d'étude des environnements terrestre et planétaires
Abstract : First recordings of satellite ELF/VLF waveform data associated with TLE observations are reported from the Summer 2005 campaign coordinated by Stanford University and LPCE. TLEs are optically observed from the US Langmuir Laboratory, while ELF/VLF waveform data are simultaneously recorded on-board the CNES microsatellite DEMETER and on the ground at Langmuir. Analyses of ELF/VLF measurements associated with two sprite events observed on July 28 2005 around 05:02:45 UT are presented. Conditions to trace back the wave emissions from the satellite to the entry point within the ionosphere are discussed. The main results concern: (i) the identification from a low Earth orbit satellite of the 0+ whistler signatures of the causative lightning, (ii) the identification of the propagation characteristics of proton whistlers triggered by the 0+ whistlers of the causative lightning, and the potential use of those characteristics to identify longitudinal or quasi-longitudinal 0+ whistlers, (iii) the difficulty to observe sprite-produced ELF bursts in the presence of proton-whistlers, (iv) an optimum transfer of energy from the atmosphere to the ionosphere for waves with wave normals anti-parallel to the Earth magnetic field direction at the altitude of the X= fpe2/f2 =1 plasma cut- off, with fpe the local plasma frequency.
Keywords : 2427 Ionosphere/atmosphere interactions (0335) 2487 Wave propagation (0689 4455 3285 4275 6934) 3304 Atmospheric electricity 3324 Lightning 3360 Remote sensing
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Submitted on : Tuesday, September 8, 2020 - 10:33:15 AM
Last modification on : Wednesday, October 20, 2021 - 12:24:09 AM

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François Lefeuvre, R.A. Marshall, Jean-Louis Pinçon, U.S. Inan, Dominique Lagoutte, et al.. Remote Sensing of TLEs by Satellite ELF/VLF Wave Measurements. American Geophysical Union, Fall Meeting 2008, Dec 2008, San Francisco, United States. pp.id. AE13A-0313. ⟨insu-02933089⟩

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