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An association of magnetospheric whistler dispersion characteristics with changes in local plasma density.We use OGO 5 measurements made within the plasmapause on May 15, 1969, to investigate the possible association between changes in lightning whistler dispersion characteristics and local density fluctuations. It is shown that groups of whistlers with relatively constant dispersions tended to be detected in regions where the local ion concentration was significantly enhanced. It is assumed that these local density fluctuations represent characteristics of large-scale field-aligned variations. The results are then compared with ray refraction estimates appropriate for low-frequency whistler mode propagation (wave components with frequencies comparable to the local lower hybrid frequency) in a nonuniform medium.
Document ID
19730042183
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Scarf, F. L.
(TRW Systems Group Redondo Beach, Calif., United States)
Chappell, C. R.
(Lockheed Research Laboratories Palo Alto, Calif., United States)
Date Acquired
August 7, 2013
Publication Date
April 1, 1973
Publication Information
Publication: Journal of Geophysical Research
Volume: 78
Subject Category
Geophysics
Report/Patent Number
NSSDC-ID-68-014A-18-PM
NSSDC-ID-68-014A-24-PM
Accession Number
73A26985
Funding Number(s)
CONTRACT_GRANT: NAS5-9278
CONTRACT_GRANT: NAS5-23106
Distribution Limits
Public
Copyright
Other

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