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Auroral vector electric field and particle comparisons. II - Electrodynamics of an arcThe paper reports the results of energetic auroral electron and vector electric field measurements taken near and above a discrete auroral form and discusses their electrodynamic implications. Height-integrated Hall and Pedersen conductivities are computed in a quantitative fashion along the rocket payload trajectory. These conductivities, together with the electric fields, are used to describe the local auroral electrojet current system and to demonstrate an inverse relationship between the local electric field intensity and the height-integrated Pedersen conductivity. An analysis is presented of the divergence of both the electric field and the horizontal current as an effort to infer space charge densities and magnetic-field-aligned electrical currents near an auroral arc.
Document ID
19770054311
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Evans, D. S.
(NOAA, Space Environment Laboratory, Boulder Colo., United States)
Maynard, N. C.
(NASA Goddard Space Flight Center Greenbelt, Md., United States)
Troim, J.
(National Oceanic and Atmospheric Administration Boulder, CO, United States)
Jacobsen, T.
(Forsvarets Forskningsinstitutt Kjeller, Norway)
Egeland, A.
(Norwegian Institute for Cosmic Physics Oslo, Norway)
Date Acquired
August 9, 2013
Publication Date
June 1, 1977
Publication Information
Publication: Journal of Geophysical Research
Volume: 82
Subject Category
Geophysics
Accession Number
77A37163
Distribution Limits
Public
Copyright
Other

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