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Titre du document / Document title

A theory of PLHR emissions to explain the weekly variation of ELF data observed by a low-altitude satellite

Auteur(s) / Author(s)

MOLCHANOV O. A. ; PARROT M. ; MOGILEVSKY M. M. ; LEFEUVRE F. ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

Inst. physics Earth, Moscow 123810,

Résumé / Abstract

Power-Line Harmonic Radiation (PLHR) penetrates through the atmosphere up to the ionosphere and the magnetosphere, where it influences energy flux in a variable manner. The cause of this variation may lie in the fact that the electrical power produced is weaker on Saturdays and Sundays, and it is also supposed that the current distribution at the surface of the Earth during the weekend must be different from that on weekdays. For this reason, two different models are used : a ring distribution from Monday to Friday and an octopus-shaped distribution for Saturday and Sunday. It is shown that the energy flux at the ionospheric boundary is larger for the ring distribution, and that the parallel current calculated in the ionosphere shows a maximum on Monday-Tuesday and then decreases until the end of the week. The variation of this theoretical current is similar to the variation in the intensity of ELF emissions observed at different frequencies by a low-orbiting satellite

Revue / Journal Title

Annales geophysicae    ISSN  0992-7689 

Source / Source

1991, vol. 9, no10, pp. 669-680 (1 p.)

Langue / Language

Anglais

Editeur / Publisher

Copernicus, Göttingen, ALLEMAGNE  (1988) (Revue)

Mots-clés anglais / English Keywords

Ionosphere

;

Magnetosphere

;

VLF emission

;

ELF emission

;

Satellite observation

;

Electromagnetic disturbance

;

Electric field

;

Earth surface

;

Current distribution

;

Energy flow

;

Electric current

;

Mots-clés français / French Keywords

Ionosphère

;

Magnétosphère

;

Emission TBF

;

Emission EBF

;

Observation par satellite

;

Perturbation électromagnétique

;

Champ électrique

;

Surface terrestre

;

Distribution courant

;

Flux énergétique

;

Courant électrique

;

Satellite AUREOL-3

;

Mots-clés espagnols / Spanish Keywords

Ionosfera

;

Magnetosfera

;

Emisión MBF

;

Emisión EBF

;

Observación por satélite

;

Perturbación electromagnética

;

Campo eléctrico

;

Superficie terrestre

;

Distribución corriente

;

Flujo energético

;

Corriente eléctrica

;

Localisation / Location

INIST-CNRS, Cote INIST : 19920, 35400001104133.0050

Nº notice refdoc (ud4) : 4986567



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