This talk will describe recent advances in our knowledge of atmospheric sciences through the use of advanced computer systems, new developments of mathematical air quality models, and novel parallel computational methods and computational environments. Newly developed parallel algorithms used in the numerical solution of the aerosol dynamic equation will be presented. Two specific applications will be discussed: the role of NOx and VOC in the dynamics and formation of aerosols in the South Coast Air Basin of California and a new mechanism of sea-salt aerosol chemistry.

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1999-2000 Reactive Flow and Transport Phenomena