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Variations in ion composition at middle and low latitudes from Isis 2 satelliteThe paper describes absolute ion concentration measurements with an ion mass spectrometer on the Isis 2 satellite and discusses features of the ion composition near a fixed altitude of 1400 km as they relate to longitudinal and latitudinal variations at low and middle latitudes. Two distinct classes of daytime ionospheric behavior are observed. The data obtained confirm the strong solar-geomagnetic seasonal control over the topside ion distribution. The new phenomena associated with the observed longitudinal dependence of the ion composition at 1400 km demonstrate the existence of complex physical processes which take place in this region of the ionosphere.
Document ID
19750050952
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Breig, E. L.
Hoffman, J. H.
(Texas, University Richardson, Tex., United States)
Date Acquired
August 8, 2013
Publication Date
June 1, 1975
Publication Information
Publication: Journal of Geophysical Research
Volume: 80
Subject Category
Geophysics
Accession Number
75A35024
Funding Number(s)
CONTRACT_GRANT: NGR-44-004-030
CONTRACT_GRANT: NSG-7107
CONTRACT_GRANT: NAS5-11003
Distribution Limits
Public
Copyright
Other

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