Geomagnetic micropulsations with periods 0.3-3 seconds
The classification and possible origin of geomagnetic micropulsations are discussed. In particular, pearls are described in some detail and previous investigations reviewed. Records from Victoria and Resolute Bay, Canada; Uppsala, Sweden; Reykjavik, Iceland; Huancayo, Peru; Ruth, Nevada and Isabella...
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University of British Columbia
1962
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ftunivbritcolcir:oai:circle.library.ubc.ca:2429/39492 2023-05-15T16:49:54+02:00 Geomagnetic micropulsations with periods 0.3-3 seconds Jolley, Edmund Joseph 1962 http://hdl.handle.net/2429/39492 eng eng University of British Columbia For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use. Earth movements Text Thesis/Dissertation 1962 ftunivbritcolcir 2019-10-15T18:07:18Z The classification and possible origin of geomagnetic micropulsations are discussed. In particular, pearls are described in some detail and previous investigations reviewed. Records from Victoria and Resolute Bay, Canada; Uppsala, Sweden; Reykjavik, Iceland; Huancayo, Peru; Ruth, Nevada and Isabella and Palomar, California are examined and the times of commencement and termination of pearl activity determined. The conclusion is reached that pearls in mid-latitudes are local mean time dependent and tend to occur during two periods of the day. These periods correspond roughly to sunrise and sunset, the times of rapid change in the critical frequency in the Fâ layer. Pearls seem to occur most often when the geomagnetic Kp index is less than 4o and greater than 0â. No correlation is evident between occasional pearl-like signals at Huancayo and pearls observed at other stations. It is suggested that the appearance of pearls is to a certain extent controlled by local ionospheric conditions. Science, Faculty of Physics and Astronomy, Department of Graduate Thesis Iceland Resolute Bay University of British Columbia: cIRcle - UBC's Information Repository Canada Resolute Bay ENVELOPE(-94.842,-94.842,74.677,74.677) |
institution |
Open Polar |
collection |
University of British Columbia: cIRcle - UBC's Information Repository |
op_collection_id |
ftunivbritcolcir |
language |
English |
topic |
Earth movements |
spellingShingle |
Earth movements Jolley, Edmund Joseph Geomagnetic micropulsations with periods 0.3-3 seconds |
topic_facet |
Earth movements |
description |
The classification and possible origin of geomagnetic micropulsations are discussed. In particular, pearls are described in some detail and previous investigations reviewed. Records from Victoria and Resolute Bay, Canada; Uppsala, Sweden; Reykjavik, Iceland; Huancayo, Peru; Ruth, Nevada and Isabella and Palomar, California are examined and the times of commencement and termination of pearl activity determined. The conclusion is reached that pearls in mid-latitudes are local mean time dependent and tend to occur during two periods of the day. These periods correspond roughly to sunrise and sunset, the times of rapid change in the critical frequency in the Fâ layer. Pearls seem to occur most often when the geomagnetic Kp index is less than 4o and greater than 0â. No correlation is evident between occasional pearl-like signals at Huancayo and pearls observed at other stations. It is suggested that the appearance of pearls is to a certain extent controlled by local ionospheric conditions. Science, Faculty of Physics and Astronomy, Department of Graduate |
format |
Thesis |
author |
Jolley, Edmund Joseph |
author_facet |
Jolley, Edmund Joseph |
author_sort |
Jolley, Edmund Joseph |
title |
Geomagnetic micropulsations with periods 0.3-3 seconds |
title_short |
Geomagnetic micropulsations with periods 0.3-3 seconds |
title_full |
Geomagnetic micropulsations with periods 0.3-3 seconds |
title_fullStr |
Geomagnetic micropulsations with periods 0.3-3 seconds |
title_full_unstemmed |
Geomagnetic micropulsations with periods 0.3-3 seconds |
title_sort |
geomagnetic micropulsations with periods 0.3-3 seconds |
publisher |
University of British Columbia |
publishDate |
1962 |
url |
http://hdl.handle.net/2429/39492 |
long_lat |
ENVELOPE(-94.842,-94.842,74.677,74.677) |
geographic |
Canada Resolute Bay |
geographic_facet |
Canada Resolute Bay |
genre |
Iceland Resolute Bay |
genre_facet |
Iceland Resolute Bay |
op_rights |
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use. |
_version_ |
1766040070302728192 |