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Feedback between neutral winds and auroral arc electrodynamicsThe feedback between neutral atmospheric winds and the electrodynamics of a stable, discrete auroral arc is analyzed. The ionospheric current continuity equation and the equation for neutral gas acceleration by ion drag are solved simultaneously, as a function of time. The results show that, in general, the electric field in the ionosphere adjusts to neutral wind acceleration so as to keep auroral field-aligned currents and electron acceleration approximately independent of time. It is thus concluded that the neutral winds that develop as a result of the electrodynamical forcing associated with an arc do not significantly affect the intensity of the arc.
Document ID
19870039720
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Lyons, L. R.
(Aerospace Corp. Los Angeles, CA, United States)
Walterscheid, R. L.
(Aerospace Corp. Los Angeles, CA, United States)
Date Acquired
August 13, 2013
Publication Date
December 1, 1986
Publication Information
Publication: Journal of Geophysical Research
Volume: 91
ISSN: 0148-0227
Subject Category
Geophysics
Accession Number
87A26994
Funding Number(s)
CONTRACT_GRANT: NASW-861
CONTRACT_GRANT: NAGW-853
Distribution Limits
Public
Copyright
Other

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