Perturbations of ionosphere-magnetosphere coupling by powerful VLF emissions from ground-based transmitters

Journal Article · Sat Dec 15 04:00:00 EST 2012 · Journal of Experimental and Theoretical Physics

DOI:https://doi.org/10.1134/S1063776112130018· OSTI ID:22069220

Markov, G A; Ryabov, A O ^[1]; Parrot, M ^[2]

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1. Lobachevsky Nizhni Novgorod State University (Russian Federation)
2. Environment Physics and Chemistry Laboratory (France)

The characteristics of the plasma-wave disturbances stimulated in the near-Earth plasma by powerful VLF radiation from ground-based transmitters are investigated. Radio communication VLF transmitters of about 1 MW in power are shown to produce artificial plasma-wave channels (density ducts) in the near-Earth space that originate in the lower ionosphere above the disturbing emission source and extend through the entire ionosphere and magnetosphere of the Earth along the magnetic field lines. Measurements with the onboard equipment of the DEMETER satellite have revealed that under the action of emission from the NWC transmitter, which is one of the most powerful VLF radio transmitters, the generation of quasi-electrostatic (plasma) waves is observed on most of the satellite trajectory along the disturbed magnetic flux tube. This may probably be indicative of stimulated emission of a magnetospheric maser.

• OSTI ID: 22069220
• Journal Information: Journal of Experimental and Theoretical Physics, Journal Name: Journal of Experimental and Theoretical Physics Journal Issue: 6 Vol. 115; ISSN JTPHES; ISSN 1063-7761
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
79 ASTRONOMY AND ASTROPHYSICS
COUPLING
DATA TRANSMISSION
DISTURBANCES
EARTH MAGNETOSPHERE
IONOSPHERE
MAGNETIC FIELDS
MAGNETIC FLUX
MASERS
PLASMA WAVES
RADIO EQUIPMENT
RADIOWAVE RADIATION
SATELLITES
STIMULATED EMISSION