Mars' South Polar Ar Enhancement: A Tracer for South Polar Seasonal Meridional Mixing

The gamma ray spectrometer on the Mars Odyssey spacecraft measured an enhancement of atmospheric argon over southern high latitudes during autumn followed by dissipation during winter and spring. Argon does not freeze at temperatures normal for southern winter (~145 kelvin) and is left in the atmosp...

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Bibliographic Details
Published in:	Science (American Association for the Advancement of Science) 2004-11, Vol.306 (5700), p.1364-1367
Main Authors:	Sprague, A. L., Boynton, W. V., Kerry, K. E., Janes, D. M., Hunten, D. M., Kim, K. J., Reedy, R. C., Metzger, A. E.
Format:	Article
Language:	English
Subjects:	Argon Astronomy Atmosphere Autumn Average linear density Aviation Technology Carbon Dioxide Chemical composition Coefficients Condensation Dry Ice Earth, ocean, space Environmental aspects Exact sciences and technology Extraterrestrial Environment Frost Gamma ray astronomy Gamma rays Gases Latitude Mars Mars (Planet) Martian atmosphere Mathematics Mixing ratios Organic Chemistry Planetary, asteroid, and satellite characteristics and properties Planets, their satellites and rings. Asteroids Polar regions Seasons Solar system Spacecraft Spectrometry, Gamma Spring Sunlight Temperature Weather Winter
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