GEOPHYSICAL EFFECTS ASSOCIATED WITH THE HIGH-ALTITUDE NUCLEAR EXPLOSION

Journal Article · Thu Jan 01 04:00:00 EST 1959 · Journal of Geomagnetism and Geoelectricity (Japan)

DOI:https://doi.org/10.5636/jgg.11.39· OSTI ID:4153361

Uyeda, H; Obayashi, T; Ishikawa, S; Maeda, H; Kimpara, A; Kawabata, Y

A report is given on observations and investigations concerning the geophysical effects associated with the highaltitude nuclear explosions carried out over Johnston Island on August 1 and 12, 1955. The effects under consideration are on the disturbances of the geomagnetism, VLF atmos pherics, field strength of the HF waves, the ionosphere, and acoustic and seismic waves. As the result of investigations of the associated phenomena, the mechanism of generation of each phenomenon seems to be very complicated and associated with each other. In view of the time that elapsed after the blast, three distinct periods seem to exist. The typical examples are the two stages of the magnetic disturbance- SSC and the main phase-and the ionospheric disturbance which appeared several hours later and lasted more than ten hours. They will belong to the first, second, and third periods, respectively. (auth)

• Research Organization: Radio Research Labs., Japan; Kyoto Univ.; Nagoya Univ., Japan; Japan Meteorological Agency
• Sponsoring Organization: USDOE
• NSA Number: NSA-14-016497
• OSTI ID: 4153361
• Journal Information: Journal of Geomagnetism and Geoelectricity (Japan), Journal Name: Journal of Geomagnetism and Geoelectricity (Japan) Vol. Vol: 11; ISSN JGEGA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

DISTURBANCES
EARTH
FREQUENCY
GENERAL AND MISCELLANEOUS
GEOPHYSICS
IONOSPHERE
LEVELS
MAGNETIC FIELDS
MEASURED VALUES
NUCLEAR EXPLOSIONS
PACIFIC OCEAN
RADIO WAVES
SEISMOLOGY
SHOCK WAVES
TURBULENCE