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Implementing marine organic aerosols into the GEOS-Chem model

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Figure 1. Seasonally-averaged submicron MOA surface concentrations and percent- percent-ages of total submicron organic aerosol (marine + primary anthropogenic + biomass  burn-ing + secondary) with a marine source as predicted by GEOS-Chem for 2009.
Figure 3. Global comparison of observed clean marine organic aerosol concentrations (see Gantt and Meskhidze, 2013, for details) and GEOS-Chem-predicted terrestrial (black) and  to-tal (marine + terrestrial, in red) submicron organic aerosol concentrations
Figure 4. Percentage of the submicron MOA concentration predicted by GEOS-Chem to be hydrophilic (aged) for July 2009.
Figure 5. Regions (in red) with GEOS-Chem predicted seasonal submicron MOA concentra- concentra-tions > 200 ng m − 3 for both low-aged (left column, < 40 % hydrophilic marine organic aerosol) and highly-aged (right column, > 60 % hydrophilic marin

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