Some Relations of the Chorus Activity to the Cosmic Noise Absorption, Auroral Activity, and K-index at the Auroral Zone

Journal Article · Tue Jan 01 04:00:00 EST 1963 · Journal of Geomagnetism and Geoelectricity (Tokyo)

DOI:https://doi.org/10.5636/jgg.14.172· OSTI ID:4695710

ONDOH, T.

The average diurnal-variations of geomagnetic and auroral activities are presented for every month from August, 1959 to March, 1960 using the ionospheric absorption of cosmic radio noise, the chorus indices, the auroral radar activity, and the K-indices. It is shown that the diurnal variation of the chorus correlates with that of cosmic noise absorption, but the chorus peak often delays about an hour after that of the cosmic noise absorption, and that the chorus variation negatively correlates with the variations of the auroral activity and the K-index. Thus the chorus correlates with the incoming relatively high-energy charged particles that cause cosmic noise absorption, but not with the incoming low-energy particles that produce geomagnetic disturbances.

• Research Organization: Kyoto Univ.
• Sponsoring Organization: USDOE
• NSA Number: NSA-17-028122
• OSTI ID: 4695710
• Journal Information: Journal of Geomagnetism and Geoelectricity (Tokyo), Journal Name: Journal of Geomagnetism and Geoelectricity (Tokyo) Journal Issue: 3 Vol. 14; ISSN 0022-1392
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
ABSORPTION
ASTROPHYSICS
AURORAE
COSMIC RADIATION
EARTH
ENERGY RANGE
GEOPHYSICS
IONOSPHERE
MAGNETIC FIELDS
RADAR
RADIO WAVES
SPACE
STATISTICS
TURBULENCE
VARIATIONS