Computer simulation of the boundary layer oxidation and removal of atmospheric pollutants over the western Atlantic Ocean

A computer model for simulating the atmospheric chemistry and removal of polluted air parcels, within the marine boundary layer, was developed. The model was applied to the case of eastward transport of anthropogenic pollution across the western Atlantic Ocean. The model includes over 100 chemical reactions describing the gas phase processes that occur in polluted atmospheres, as well as features describing the daily photochemical cycle, changes in mixing height, air mass exchange between the boundary layer and the free troposphere and deposition. The initial concentrations for the model calculations were set to be equal to those observed during the Western Atlantic Ocean Experiment (WATOX), and the results of the computation are compared with observations in Bermuda during the same project.