A STUDY OF SHORT PERIOD MICROPULSATIONS.
Geomagnetic micropulsations in the period range of 0.3 to 120 seconds have been recorded on flux-rate variographs at many widespread locations: Palomar, California, since July 1955; Resolute Bay, Canada, since November 1957; Uppsala, Sweden, since July 1958; Reykjavik Iceland since June 1958; and Hu...
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Format: | Text |
Language: | English |
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1967
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Online Access: | http://www.dtic.mil/docs/citations/AD0661068 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0661068 |
Summary: | Geomagnetic micropulsations in the period range of 0.3 to 120 seconds have been recorded on flux-rate variographs at many widespread locations: Palomar, California, since July 1955; Resolute Bay, Canada, since November 1957; Uppsala, Sweden, since July 1958; Reykjavik Iceland since June 1958; and Huancayo, Peru, since October 1958. The flux-rate variographs consist of pickup coils having a turns-area of 750 x 28,000 cm squared connected directly to galvanometers recording photographically with standard seismograph recording drums. (Author) |
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