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Near-Mars spaceThe prevalent attributes of near-Mars space are described: the ambient interplanetary environment, the ionosphere, the upper atmosphere, and more remote regions that are affected by the presence of Mars. The descriptions are based on existing Martian data and/or models constructed from measurements made near Venus. Specific attention is given to the features of solar wind interaction with magnetospheric and ionospheric obstacles. The high-altitude plasma and field environment, the energetic particle environment, the ionosphere environment, and the neutral upper atmosphere environment are described with extensive graphic information, based on existing measurements collected from nine Martian missions. The ionospheric obstacle is assumed to prevail as a mechanism for describing the scenario. Martian perturbation of solar wind is theorized to be of a relatively small order. A distinctive local energetic particle population of planetary origin is shown to result from the direct interaction of solar wind plasma. This phenomenon is considered evidence of the important scavenging of planetary elements from Mars. The absence of a planetary dipole field around Mars, like its low gravity and distance from the sun, is considered important in determining the environment of this earthlike laboratory.
Document ID
19910051905
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Luhmann, J. G.
(California, University Los Angeles, United States)
Brace, L. H.
(Michigan, University Ann Arbor, United States)
Date Acquired
August 15, 2013
Publication Date
May 1, 1991
Publication Information
Publication: Reviews of Geophysics
Volume: 29
ISSN: 8755-1209
Subject Category
Lunar And Planetary Exploration
Accession Number
91A36528
Funding Number(s)
CONTRACT_GRANT: NAGW-1347
Distribution Limits
Public
Copyright
Other

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