Session 8 Aerosol Impacts on Weather and Dynamics—Part I

Wednesday, 10 January 2018: 10:30 AM-12:00 PM
Room 12A (ACC) (Austin, Texas)
Host: 10th Symposium on Aerosol-Cloud-Climate Interactions
Terry Nathan, Univ. of California, Davis, Atmospheric Science Program, Davis, CA and Shuhua Chen, Univ. of California, Davis, Atmopsheric Science, Davis, CA

How and to what extent the mineral dust aerosols can affect regional weather systems, global circulation patterns, and climate variability remains an open question. Answering the above question requires comprehensive understanding of the direct, indirect, and semi-direct radiative effects of dust in order to accurately model the energy budget of the atmosphere and surface. The dust-induced changes to the energy budget are manifest in cloud processes and the thermal structure of the atmosphere, and consequently the circulation. The dust-modified circulation, in turn, alters the dust transport by the mean and eddy portions of the flow. Examples of dust-modified circulations include, but are not limited to, the African easterly jet–African easterly wave system, the African monsoon, tropical cyclones, mesoscale convective complexes, and springtime cyclones over Southern Europe, Mongolia, and China.

10:30 AM
Estimation of the Direct Dust–Climate Feedback (Invited Presentation)
Jasper F. Kok, Univ. of California, Los Angeles, Los Angeles, CA; and D. Ward, N. Mahowald, and A. Evan
11:00 AM
The Effect of Saharan Mineral Dust Aerosols on the Inter-Annual Variability of the Strength of African Easterly Waves
Emily Bercos-Hickey, Univ. of California, Davis, Davis, CA; and T. R. Nathan and S. H. Chen
11:15 AM
11:30 AM
The potential Impact of African Dust on the Simulation of North Atlantic Hurricanes in High-Resolution CAM5
Kevin A. Reed, Stony Brook Univ., SUNY, Stony Brook, NY; and J. Huff, J. T. Bacmeister, S. Bates, and N. Rosenbloom
11:45 AM
Effects of Assimilating Aerosol Optical Depth (AOD) Observations on Dust Forecasts over North Africa and the East Atlantic
Yonghan Choi, Univ. of California, Davis, CA; and S. H. Chen, K. Earl, C. Schwartz, C. Y. Chen, and C. C. Huang

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