Intense localized disturbances of the auroral ionosphere
Journal Article
·
· Cosmic Res. (Engl. Transl.); (United States)
OSTI ID:5683801
The results are presented of a comprehensive study of strong ionospheric disturbances with a spatial scale of 1-10 km at altitudes of 900 km, which was carried out on the Interkosmos Bolgariya-1300 satellite. The localized disturbances are characterized by the appearance of high-amplitude transverse electric fields, small-scale vortex motions of the ionospheric plasma with velocities up to 4.5 km/sec, narrow current sheets with a current density up to 10/sup -4/ ..mu cap alpha../m/sup 2/, bursts of precipitating 1-keV electrons, variations in the ionospheric plasma concentration, and a significant increase in wave activity. The set of data is best explained by the excitation of oblique Alfven waves and the development of anomalous resistivity.
- OSTI ID:
- 5683801
- Journal Information:
- Cosmic Res. (Engl. Transl.); (United States), Journal Name: Cosmic Res. (Engl. Transl.); (United States) Vol. 23:3; ISSN CSCRA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
640201* -- Atmospheric Physics-- Auroral
Ionospheric
& Magetospheric Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALFVEN WAVES
AURORAE
CHARGED-PARTICLE PRECIPITATION
CURRENT DENSITY
DISTURBANCES
EARTH ATMOSPHERE
ELECTRIC FIELDS
ELECTRON PRECIPITATION
ELECTROSTATICS
ENERGY-LEVEL TRANSITIONS
EXCITATION
FLUID FLOW
HYDROMAGNETIC WAVES
INTERKOSMOS SATELLITES
IONOSPHERE
IONOSPHERIC STORMS
PLANETARY IONOSPHERES
PLASMA DENSITY
SATELLITES
SHOCK WAVES
SUDDEN IONOSPHERIC DISTURBANCE
VELOCITY
VORTEX FLOW
WAVE PROPAGATION
Ionospheric
& Magetospheric Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALFVEN WAVES
AURORAE
CHARGED-PARTICLE PRECIPITATION
CURRENT DENSITY
DISTURBANCES
EARTH ATMOSPHERE
ELECTRIC FIELDS
ELECTRON PRECIPITATION
ELECTROSTATICS
ENERGY-LEVEL TRANSITIONS
EXCITATION
FLUID FLOW
HYDROMAGNETIC WAVES
INTERKOSMOS SATELLITES
IONOSPHERE
IONOSPHERIC STORMS
PLANETARY IONOSPHERES
PLASMA DENSITY
SATELLITES
SHOCK WAVES
SUDDEN IONOSPHERIC DISTURBANCE
VELOCITY
VORTEX FLOW
WAVE PROPAGATION