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The shape of the F-region irregularities which produce satellite scintillations Evidence for axial asymmetry.Correlation analysis of three-station observations of satellite amplitude scintillations, recorded at London, Canada during the summer of 1968, have been interpreted to give information on the height, size and shape of the ionospheric irregularities. The irregularities had a mean height of 390 km, and when interpreted in terms of the usual axially-symmetric, field-aligned model, had a mean axial ratio of 6.5, and a mean dimension transverse to the magnetic field of 0.7 km. None of these parameters showed any systematic trend with geomagnetic latitude. The data for one of the passes analyzed were inconsistent with axial symmetry, and when examined in terms of a more general model, 3 of 9 passes showed evidence of irregularities which were elongated both along and transverse to the earth's magnetic field, the elongation transverse to the field tending to lie in a north-south direction.
Document ID
19720037439
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Moorcroft, D. R.
Arima, K. S.
(Western Ontario, University London, Ontario, Canada)
Date Acquired
August 6, 2013
Publication Date
March 1, 1972
Publication Information
Publication: Journal of Atmospheric and Terrestrial Physics
Volume: 34
Subject Category
Geophysics
Accession Number
72A21105
Funding Number(s)
CONTRACT_GRANT: NGR-05-009-076
Distribution Limits
Public
Copyright
Other

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