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Characteristics of a stable auroral red arc eventThe present investigation is concerned with an analysis of the measurements of the stable auroral red (SAR) arc of October 23, 1981, using data from orbit 1192 of Dynamics Explorer (DE) 2, during which a magnetic coincidence occurred with the DE-1 spacecraft near the red arc field line, and for which simultaneous ground-based intensity measurements from Richland, WA were available. The altitude of the DE-2 satellite was approximately 850 km during arc passage in the Northern Hemisphere and approximately 395 km during the conjugate hemisphere passage. The DE-1 satellite was at an altitude of approximately 6000 km during the magnetic coincidence with DE-2 in the Northern Hemisphere. The described observations and calculations reconfirm a previous understanding that the actual excitation of the O(1D) state responsible for the 6300 A emission of red arcs is caused by hot ionospheric thermal electrons.
Document ID
19820061306
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Kozyra, J. U.
(Michigan Univ. Ann Arbor, MI, United States)
Cravens, T. E.
(Michigan Univ. Ann Arbor, MI, United States)
Nagy, A. F.
(Michigan Univ. Ann Arbor, MI, United States)
Chandler, M. O.
(Michigan, University Ann Arbor, MI, United States)
Brace, L. H.
(Michigan Univ. Ann Arbor, MI, United States)
Maynard, N. C.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Slater, D. W.
(Battelle Pacific Northwest Laboratories Richland, WA, United States)
Emery, B. A.
(National Center for Atmospheric Research Boulder, CO, United States)
Shawhan, S. D.
(Iowa, University Iowa City, IA, United States)
Date Acquired
August 10, 2013
Publication Date
September 1, 1982
Publication Information
Publication: Geophysical Research Letters
Volume: 9
Subject Category
Geophysics
Accession Number
82A44841
Funding Number(s)
CONTRACT_GRANT: DE-AC06-76RL-01830
CONTRACT_GRANT: NAS5-25038
CONTRACT_GRANT: NSF ATM-81-11896
Distribution Limits
Public
Copyright
Other

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