COSMIC NOISE ABSORPTION ACCOMPANYING GEOMAGNETIC STORM SUDDEN COMMENCEMENTS

Journal Article · Mon Oct 01 04:00:00 EDT 1962 · Journal of Geophysical Research (U.S.)

DOI:https://doi.org/10.1029/JZ067i011p04169· OSTI ID:4752133

Ortner, J; Hultqvist, B; Brown, R R; Hartz, T R; Holt, O; Landmark, B; Hook, J L; Leinbach, H

Cosmic noise absorption coinciding with the sudden commencement of geomagnetic storms has been studied for 71 SC events from the data recorded at 25 riometer stations at or near the auroral zone during the period July 1958-- December 1960. The greatest absorption was registered at stations near the central line of the auroral zone. The effect was observed simultaneously on the day and on the night side of the earth. This type of absorption was earlier found to be associated with bremsstrahlung X rays created by electrons entering the lower ionosphere. The source of these electrons has not been definitely established by the present study. Although the data tends to favor a source outside the earth's magnetosphere, no definite conclusion is possible because of the present uncertainties concerning the trapped radiation belts. (auth)

• Research Organization: Kiruna Geophysical Observatory, Sweden
• Sponsoring Organization: USDOE
• NSA Number: NSA-17-005092
• OSTI ID: 4752133
• Journal Information: Journal of Geophysical Research (U.S.), Journal Name: Journal of Geophysical Research (U.S.) Vol. Vol: 67; ISSN JGREA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ABSORPTION
AURORAE
BACKGROUND
BREMSSTRAHLUNG
COSMIC RADIATION
EARTH
ELECTRONS
IONOSPHERE
MAGNETIC FIELDS
PHYSICS
RADIATION BELTS
TRAPS
TURBULENCE
X RADIATION
ZONES