Black carbonaceous aerosol (BC) is an important component of atmospheric particulate matter because of its dual roles in health and climate. In this paper a fully-coupled meteorology-chemistry-aerosol model (WRF-Chem) is used to assess the impacts of BC and other aerosols on radiative forcing, weather and atmospheric chemistry. A series of simulations from different aerosol - cloud environments ranging from heavily polluted cities in East (Beijing) and South (Delhi) Asia to relatively clean coastal areas with permanent cloud cover (VOCALS experiment off the west coast of Chile/Peru) are simulated. The results are further analyzed using adjoint sensitivities of meteorological and cloud parameters calculated using a new adjoint models of the WRF-Chem model. Adjoint models of the aerosol and climate interactions in the WRF-Chem model are being developed in order to explore the sensitivities from different meteorological observations to aerosol concentrations.

Analysis of aerosol feedbacks on chemistry and climate at urban and regional scales

243rd National Meeting (2012)

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