Dependence of simulations of long range transport on meteorology, model and dust size

Tuesday, 15 December 2015: 11:05
3004 (Moscone West)
Natalie M Mahowald1, Samuel Albani1, Molly Smith1, Remi Losno2, Beatrice Marticorena2, David A Ridley3 and Colette L Heald3, (1)Cornell University, Department of Earth and Atmospheric Sciences, Ithaca, NY, United States, (2)University Denis Diderot Paris VII, Paris Cedex 13, France, (3)MIT, Cambridge, MA, United States
Mineral aerosols interact with radiation directly, as well as modifying climate, and provide important micronutrients to ocean and land ecosystems. Mineral aerosols are transported long distances from the source regions to remote regions, but the rates at which this occurs can be difficult to deduce from either observations or models. Here we consider interactions between the details of the simulation of dust size and long-range transport. In addition, we compare simulations of dust using multiple reanalysis datasets, as well as different model basis to understand how robust the mean, seasonality and interannual variability are in models. Models can provide insight into how long observations are required in order to characterize the atmospheric concentration and deposition to remote regions.