Other
Scientific paper
Sep 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009dps....41.4906c&link_type=abstract
American Astronomical Society, DPS meeting #41, #49.06
Other
Scientific paper
Recent publications have indicated the presence of methane (or another gas in the same spectral range) in the Martian atmosphere (1,2,3). These publications have also shown that the abundance of the gas is both spatially and temporally variable on short timescales, with strong sources and sinks. Using these observations as constraints, we model the gas using the NASA Ames GCM to determine the spatial extent and magnitude of the source(s), duration of source activity, as well as the timescales for transport and destruction of the gas. From the model, we determine the parameters which describe the behavior of the gas. These constraints can show whether the observations can realistically be methane, which would require destruction processes much more robust than photochemical timescales, or whether it must be another gas with different removal processes.
This work is funded by New Mexico Space Grant.
Mumma, et al., Science, 2009
Krasnopolsky, et al., Icarus, 2004
Formisano, et al., Science, 2004
Chizek Malynda
Haberle Robert
Kahre M.
Murphy Jeremiah
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