Interactions between Aerosols and Atmospheric Circulation

Influence of East Asian Anthropogenic Aerosols on the North Pacific Atmospheric Circulation

In this project, we explore with the NCAR CAM5 model the dynamical consequences of East Asian anthropogenic aerosols that propagate across the North Pacific basin in boreal winter. Emphasis is placed upon the aerosol effect (both direct and indirect) on the energy budget of synoptic-scale and low-frequency disturbances and the associated cloud, moisture transport and precipitation processes. 

 

                               

         Differences of the 550 nm aerosol optical depth (AOD) between CAM5 perpetual winter simulations with and without East Asian anthropogenic aerosol emission.

 

                                           

 Differences in the amplitude of transient eddies (in terms of root-mean-square of filtered 500-mb height) between CAM5 perpetual winter simulations with and without East Asian anthropogenic aerosol emission.