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Mapping Mars water vapor with the Very Large ArrayThis paper presents the first radio measurements of Mars atmospheric water, retrieved from interferometric spectral line observations with the NRAO VLA. Large atmospheric path lengths on the limb of Mars lead to an annulus of H2O line emission which provides a measure of the diurnal and latitudinal variability of atmospheric water on Mars. The measured line shapes of the observed H2O emission yield the first direct measurements of the vertical mixing profile of H2O in the Mars atmosphere. The observations indicate a very dry Mars atmosphere in which the globally averaged water column is approximately 3 pr micron.
Document ID
19930034908
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Clancy, R. T.
(Colorado Univ. Boulder, United States)
Grossman, Arie W.
(Maryland Univ. College Park, United States)
Muhleman, Duane O.
(California Inst. of Technology Pasadena, United States)
Date Acquired
August 15, 2013
Publication Date
November 1, 1992
Publication Information
Publication: Icarus
Volume: 100
Issue: 1
ISSN: 0019-1035
Subject Category
Lunar And Planetary Exploration
Accession Number
93A18905
Funding Number(s)
CONTRACT_GRANT: NAGW-2995
Distribution Limits
Public
Copyright
Other

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