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Ionospheric simulation compared with Dynamics Explorer observations for November 22, 1981The present study uses an extensive DE-2 data base to both constrain inputs to a time-dependent ionospheric model (TDIM) for a simulation of the ionosphere and then check the simulated densities. The investigation was carried out for both a quiet period and a substorm period. The quiet-day study produced very good agreement between modeled and observed electron densities in the topside ionosphere with two significant exceptions: First, across the polar region the DE-2 LANG densities showed fine structure in addition to the overall regional density morphology. Second, a surprising discrepancy arose in the presunrise and midlatitude trough. The TDIM densities were an order of magnitude lower than those observed by DE-2. The substorm study showed remarkably good agreement with the observed densities.
Document ID
19920041890
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Sojka, J. J.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Bowline, M.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Schunk, R. W.
(Utah State University Logan, United States)
Craven, J. D.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Frank, L. A.
(Iowa, University Iowa City, United States)
Sharber, J. R.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Winningham, J. D.
(Southwest Research Institute San Antonio, TX, United States)
Brace, L. H.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 15, 2013
Publication Date
February 1, 1992
Publication Information
Publication: Journal of Geophysical Research
Volume: 97
ISSN: 0148-0227
Subject Category
Geophysics
Accession Number
92A24514
Funding Number(s)
CONTRACT_GRANT: NAG5-483
CONTRACT_GRANT: NAS5-33031
CONTRACT_GRANT: NAG5-1484
CONTRACT_GRANT: NAGW-1536
CONTRACT_GRANT: NAGW-1547
CONTRACT_GRANT: NAGW-77
Distribution Limits
Public
Copyright
Other

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