Seasonal Variability Of Eddies In The Martian Atmosphere Simulated By MarsWRF

Details Seasonal Variability Of Eddies In The Martian Atmosphere Simulated By MarsWRF Seasonal Variability Of Eddies In The Martian Atmosphere Simulated By MarsWRF

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010dps....42.4505w&link_type=abstract

American Astronomical Society, DPS meeting #42, #45.05; Bulletin of the American Astronomical Society, Vol. 42, p.1048

Astronomy and Astrophysics

Astronomy

Scientific paper

Observations indicate that traveling waves in the Martian atmosphere have distinct seasonality and are greatly influenced by major dust storms. In the northern hemisphere, traveling waves in the first few scale heights appear weakest around the winter solstice and suppressed following the onset of a major dust storm, and those at higher levels exhibit different behavior. These waves are very important for eddy transport and flushing dust storm development. We have performed a series numerical simulations using the MarsWRF model to examine the general seasonality and variability of various planetary waves and the effects of major dust storms. We will present results derived from multi-year simulations where dust distributions are specified to represent both the background annual cycle and major dust storms at various solar longitudes. This experiment will help us better understand the observed behavior of frontal events and the response of various wave modes to major dust storm during different season. The experiment may also provide hint for better simulating flushing events - an important link in the global dust cycle. This study is supported by NASA Planetary Atmospheres program.

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