92nd American Meteorological Society Annual Meeting (January 22-26, 2012)

Thursday, 26 January 2012: 11:30 AM
A Road Map for Understanding Aerosol Impacts on Regional Climate (invited)
Room 244 (New Orleans Convention Center )
Yi Ming, NOAA/GFDL, Princeton, NJ

As the community strives to understand near-term regional climate change, short-lived anthropogenic aerosols are expected to take center stage. Despite a few early attempts, aerosol impacts on the general circulation and hydrological cycle have not been examined in a systematic manner. In this talk, I will describe a top-down approach to disentangling the complex interaction between aerosols and regional climate, starting first from global-means before moving to zonal-means, and then to zonal asymmetries within a latitude band. A wide range of seemingly unrelated questions concerning indirect effects, black carbon, Hadley and Walker circulations, South Asian monsoon, tropical-extrotropical teleconnections and climate sensitivity will be discussed. Yet, with the help of observations, theories and numerical models, I will show that these questions are intricately related to one another, and can be best answered within one overarching framework.

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