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Double-peaked sodium layers at high latitudesNa lidar observations indicate that at high latitudes in summer the neutral Na layer frequently attains a double-peaked structure. The main layer with a maximum near 90 km altitude is supplemented by a secondary, narrow layer near 95 km altitude. Results are presented concerning secondary sodium layers. It appears likely that the formation of secondary Na layers observed frequently above the lidar site is not solely a 'sodium phenomenon', but part of a more comprehensive layering process for metal atoms and ions. Na(+)/Na density ratios close to 0.5 near the peaks of both the main and secondary layers are derived.
Document ID
19890060837
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Von Zahn, U.
(Bonn, Universitaet Federal Republic of Germany, United States)
Goldberg, R. A.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Stegman, J.
(Bonn Univ. Germany)
Witt, G.
(Stockholm, Universitet Sweden)
Date Acquired
August 14, 2013
Publication Date
June 1, 1989
Publication Information
Publication: Planetary and Space Science
Volume: 37
ISSN: 0032-0633
Subject Category
Geophysics
Accession Number
89A48208
Funding Number(s)
CONTRACT_GRANT: DFG-HO-858/1
Distribution Limits
Public
Copyright
Other

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