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VLF emissions and whistlers observed during geomagnetic stormsWhistler-triggered emissions and a narrowband hiss are described which were observed over Japan by ISIS 2 during the main phase of the geomagnetic storm of August 9, 1972. The characteristics of the narrowband hiss and increases in the whistler rate during the storm are discussed, and the ISIS-2 data are compared with data on whistler cutoffs and VLF noise breakups obtained by OGO 4 and Alouette I. Since the whistlers and narrowband hiss are usually observed inside and outside the plasmapause, it is thought that the plasmapause may have been located near the low-latitude end of the narrowband hiss during the main phase of the storm. It is suggested that the increases in the whistler rate may have been caused by the formation of whistler ducts in the disturbed plasmapause.
Document ID
19750049236
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Ondoh, T.
Tanaka, Y.
(Nagoya University Toyokawa, Japan)
Nishizaki, R.
Nagayama, M.
Date Acquired
August 8, 2013
Publication Date
January 1, 1974
Publication Information
Publication: Radio Research Laboratories
Subject Category
Geophysics
Accession Number
75A33308
Distribution Limits
Public
Copyright
Other

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