Modeling the HDO cycle in the Martian atmosphere.

Details Modeling the HDO cycle in the Martian atmosphere. Modeling the HDO cycle in the Martian atmosphere.

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003agufm.p32c..01m&link_type=abstract

American Geophysical Union, Fall Meeting 2003, abstract #P32C-01

Physics

0320 Cloud Physics And Chemistry, 3346 Planetary Meteorology (5445, 5739), 6225 Mars

Scientific paper

Among all the deuterated species of water, HDO has received much attention from scientists since its early measurement in the Martian atmosphere. Its current concentration, compared to terrestrial standards, suggests a significant loss of water that has escaped to space in the past. The study of HDO is intimately related to the past abundance of water and is therefore useful for understanding Mars' climate. As a first stage of a future modeling of atmospheric Deuterium (involving photo-chemical processes presently unaccounted for), we will present results from a GCM-based modeling of the HDO cycle. Significant seasonal and geographical variations of the HDO/H2O ratio are expected due to severe fractionation during condensation processes. Comparison with available measurements will be discussed.

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