VLF Emissions and Geomagnetic Disturbances at the Auroral Zone

Journal Article · Mon Jan 01 04:00:00 EST 1962 · Journal of Geomagnetism and Geoelectricity (Tokyo)

DOI:https://doi.org/10.5636/jgg.14.86· OSTI ID:4749580

ONDOH, Tadanori

A close relation has been found between increases of chorus indices continuing for a few houra and geomagnettc pulsattons at the auroral zone, using the chorus indices and rapid-run magnetograms at College, Alaska, during July 1959 to December 1980. During this period 79 increases of chorus indices occurred in relatively quiet geomagneticconditions after geomagnettc bay-like disturbances. Of 79 chorus increases, 52 were associated with geomagnetic pulsations with periods between 1 and 6 minutes and 11 were associated with pulsations having periods of about 30 seconds. The chorus increases may be generated by penetration of high speed charged particles irto the exosphere, which may also be related to the geomagnetic pulsations. A possible mechanism of the generation of geomagnetic pulsation has been discussed. (auth)

• Research Organization: Kyoto Univ.
• Sponsoring Organization: USDOE
• NSA Number: NSA-17-006838
• OSTI ID: 4749580
• Journal Information: Journal of Geomagnetism and Geoelectricity (Tokyo), Journal Name: Journal of Geomagnetism and Geoelectricity (Tokyo) Journal Issue: 2 Vol. 14; ISSN 0022-1392
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ABSORPTION
ATMOSPHERE
AURORAE
CHARGED PARTICLES
EARTH
EMISSION
GEOPHYSICS
MAGNETIC FIELDS
PHYSICS
PULSES
TURBULENCE
VELOCITY
ZONES