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Two barium plasma injections into the northern magnetospheric cleftTwo rocket experiments, performed in January 1975, investigated convection of plasma formed by solar photoionization of barium injected into the northern magnetospheric cleft at 13 km/s upward and parallel to the local geomagnetic field. Plasma convection was demonstrated from the cleft's poleward region, directly into and across the polar cap, and possibly into the convection system of the nightside auroral electrojet; plasma injected centrally within the cleft under quiet magnetic conditions remained in the cleft convection system for at least 22 min and revealed a highly structured E-field over about 600 km of longitudinal extent. Cleft location agreed with that predicted by ionosondes.
Document ID
19750054396
Document Type
Reprint (Version printed in journal)
Authors
Jeffries, R. A.
Roach, W. H.
Hones, E. W., Jr.
(California, University Los Alamos, N. Mex., United States)
Wescott, E. M.
Stenbaek-Nielsen, H. C.
Davis, T. N.
(Alaska, University Fairbanks, Alaska, United States)
Winningham, J. D.
(Texas, University Richardson, Tex., United States)
Date Acquired
August 8, 2013
Publication Date
July 1, 1975
Publication Information
Publication: Geophysical Research Letters
Volume: 2
Subject Category
Geophysics
Funding Number(s)
CONTRACT_GRANT: NGR-44-004-124
Distribution Limits
Public
Copyright
Other
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