Physics
Scientific paper
Apr 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985jgr....90.3435l&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 90, April 1, 1985, p. 3435-3440.
Physics
16
Atmospheric Composition, Atmospheric Moisture, Mars Atmosphere, Mars Surface, Photochemical Reactions, Abundance, Atmospheric Models, Carbon Dioxide, Carbon Monoxide, Regolith, Mars, Atmosphere, Photochemistry, Composition, Obliquity, Variations, Carbon Dioxide, Pressure, Models, Abundance, Thermal Properties, Structure, Oxidation
Scientific paper
During periods of low obliquity, previous work has shown that martian CO2 partial pressures decreased to 0.1 mbar; CO2 partial pressure decreased to 0.02 mbar prior to the formation of the Tharsis bulge. The permanent polar caps act as a cold trap and projected global average water vapor abundances drop to possibly as low as 10-5 precipitable μm. As a result, the odd hydrogen catalytic cycle would not be effective at recombining CO and O back into CO2, and as much as 0.12 mbar of CO and 0.06 mbar of O2 could exist. These increased abundances would radically affect surface oxidation, change the lower atmospheric thermal structure, and completely alter the upper atmosphere.
Jakosky Bruce M.
Lindner Bernhard Lee
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