Physics
Scientific paper
May 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agusm.p21a..04w&link_type=abstract
American Geophysical Union, Spring Meeting 2009, abstract #P21A-04
Physics
5700 Planetary Sciences: Fluid Planets, 5704 Atmospheres (0343, 1060)
Scientific paper
We are currently working on the dust lifting processes in the Mars general circulation model GM3 (the Global Mars multiscale model) developed at York University. The dust lifting initiated by surface wind stresses and convective processes has been used to simulate Martian dust cycle, for example, by Newman et al. [2002] and Basu et al. [2004]. For the surface wind based dust lifting, we apply the dust mobilization and dry deposition schemes from DEAD (The mineral Dust Entrainment And Deposition [Zender at al., 2003]) model to GM3. The dust mobilization scheme is based on near-surface wind stress and saltation sandblasting using the boundary layer meteorology conditions from GM3. The fine dust particles can be ejected into the atmosphere as a result of saltating sand size particles on the surface. Dust in the Martian atmosphere can also be lifted by dust devils. For our next work, we will add dust devils based on thermal convective scheme into GM3.
Akingunola Ayodeji
Kaminski Jürgen
McConnell John C.
Wu Dajing
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