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An observational study of the nightside ionospheres of Mars and Venus with radio occultation methodsUsing nightside electron density profiles obtained with radio occultation data from the Viking orbiters, the nightside ionospheres of Mars and Venus are investigated. It is shown that the Mars nightside ionosphere is generally weaker than the Venus nightside ionosphere, and, when it is present, the peak altitude is higher. Otherwise, there is considerable similarity. In particular, the dependence of peak density on solar zenith angle in the range of the Viking nightside observations (90-130 deg) is found to be similar for both planets.
Document ID
19910025786
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Zhang, M. H. G.
(Oesterreichische Akademie der Wissenschaften Institut fuer Weltraumforschung, Graz, Austria)
Luhmann, J. G.
(California, University Los Angeles, United States)
Kliore, A. J.
(JPL Pasadena, CA, United States)
Date Acquired
August 14, 2013
Publication Date
October 1, 1990
Publication Information
Publication: Journal of Geophysical Research
Volume: 95
ISSN: 0148-0227
Subject Category
Lunar And Planetary Exploration
Accession Number
91A10409
Funding Number(s)
CONTRACT_GRANT: NAGW-1347
Distribution Limits
Public
Copyright
Other

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