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Distribution and Abundance of Mars' Atmospheric ArgonOne and one half Mars years (MY 26 and 27) of atmospheric Argon measurements are described and studied in the context of understanding how Argon, a minor constituent of Mars atmosphere that does not condense at Mars temperatures, can be used to study martian circulation and dynamics. Argon data are from the 2001 Mars Odyssey Gamma Subsystem (GS) of the suite of three instruments comprising the Gamma Ray Spectrometer (GRS). A comprehensive data analysis including gamma-ray production and attenuation by the atmosphere is included. Of particular interest is the enhanced abundance of Ar over the observed Ar abundance at lower latitudes at south (up to a factor of 10) and north (up to a factor of 4) polar regions during winter. Calibration of the measurements to actual Ar abundance is possible because GS measurements cover the same latitude and season as measurements made by the gas chromatograph mass spectrometer (GCMS) on Viking Landers 1 and 2 (VL1 and VL2). [2].
Document ID
Acquisition Source
Document Type
Conference Paper
Sprague, A. L.
(Arizona Univ. Tucson, AZ, United States)
Boynton, W. V.
(Arizona Univ. Tucson, AZ, United States)
Kerry, K. E.
(Arizona Univ. Tucson, AZ, United States)
Nelli, Steven
(New Mexico State Univ. Las Cruces, NM, United States)
Murphy, Jim
(New Mexico State Univ. Las Cruces, NM, United States)
Reedy, R. C.
(New Mexico Univ. Albuquerque, NM, United States)
Metzger, A. E.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Hunten, D. M.
(Arizona Univ. Tucson, AZ, United States)
Janes, K. D.
(Arizona Univ. Tucson, AZ, United States)
Crombie, M. K.
(Arizona Univ. Tucson, AZ, United States)
Date Acquired
September 7, 2013
Publication Date
January 1, 2005
Publication Information
Publication: Lunar and Planetary Science XXXVI, Part 18
Subject Category
Lunar And Planetary Science And Exploration
Funding Number(s)
OTHER: 122-87-26
Distribution Limits
Public Use Permitted.
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