Physics
Scientific paper
Dec 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufm.p51e..05w&link_type=abstract
American Geophysical Union, Fall Meeting 2010, abstract #P51E-05
Physics
[3346] Atmospheric Processes / Planetary Meteorology, [5400] Planetary Sciences: Solid Surface Planets, [5405] Planetary Sciences: Solid Surface Planets / Atmospheres, [6225] Planetary Sciences: Solar System Objects / Mars
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 period and suppressed following the onset of a major dust storm, and those at higher levels exhibit different behavior. These waves are very important for flushing dust storm development, especially two to three days zonal wave number three waves. 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. The first set of simulations use prescribed dust distributions to represent both the background annual cycle and major dust storms occurring at different time. The model reproduce the seasonal variations of planetary waves well, but the simulated zonal wave number three waves are weaker than the observation. We plan to perform additional simulations with fully interactive dust to test the effect of dust distribution - dynamics feedback on the modeled waves and the development of flushing dust storms.
Richardson Mark I.
Toigo Anthony D.
Wang Hai-Hong
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