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Small-scale structure of intense longitudinal currents at high latitudes

Journal Article · · Cosmic Res. (Engl. Transl.); (United States)
OSTI ID:5314514
; ; ; ; ;
This paper investigates the small-scale structures of the longitudinal currents observed in the auroral oval from magnetic measurements on the satellite Interkosmos-Bolgariya 1300. The characteristic transverse dimensions of the current are 2-8 km, and the intensities are 3 x 10/sup -5/-10/sup -4/ A/m/sup 2/. It is shown that some of the current structures correspond to a system of ''standing'' Alfvenwaves, evidently excited by instability of the magnetospheric convection. The dimension of the structure along the magnetic field and the magnitude of the anomalous resistance are evaluated.
OSTI ID:
5314514
Journal Information:
Cosmic Res. (Engl. Transl.); (United States), Journal Name: Cosmic Res. (Engl. Transl.); (United States) Vol. 22:5; ISSN CSCRA
Country of Publication:
United States
Language:
English

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Related Subjects

640201* -- Atmospheric Physics-- Auroral
Ionospheric
& Magetospheric Phenomena
640203 -- Atmospheric Physics-- Magnetospheric Phenomena-- (-1987)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALFVEN WAVES
AURORAL OVAL
BOUNDARY CONDITIONS
CHARGED-PARTICLE PRECIPITATION
CONVECTIVE INSTABILITIES
CURRENTS
EARTH ATMOSPHERE
EARTH MAGNETOSPHERE
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRICAL PROPERTIES
ELECTRON PRECIPITATION
HEATING
HYDROMAGNETIC WAVES
INSTABILITY
INTERKOSMOS SATELLITES
ION ACOUSTIC WAVES
ION WAVES
IONOSPHERE
MATHEMATICAL MODELS
PHYSICAL PROPERTIES
PLANETARY IONOSPHERES
PLASMA HEATING
PLASMA INSTABILITY
PLASMA WAVES
REMOTE SENSING
SATELLITES
TURBULENCE