We investigate how a recently suggested pathway for production of secondary organic aerosol (SOA) affects the consistency of simulated organic aerosol (OA) mass in a global three-dimensional model of oxidant-aerosol chemistry (GEOS-Chem) versus surface measurements from the interagency monitoring of protected visual environments (IMPROVE) network. Simulations in which isoprene oxidation products contribute to SOA formation, with a yield of 2.0% by mass reduce a model bias versus measured OA surface mass concentrations. The resultant increase in simulated OA mass concentrations during summer of 0.6-1.0 μg m-3 in the southeastern United States reduces the regional RMSE to 0.88 μg m-3 from 1.26 μg m-3. Spring and fall biases are also reduced, with little change in winter when isoprene emissions are negligible. © 2006 Elsevier Ltd. All rights reserved.
CITATION STYLE
van Donkelaar, A., Martin, R. V., Park, R. J., Heald, C. L., Fu, T. M., Liao, H., & Guenther, A. (2007). Model evidence for a significant source of secondary organic aerosol from isoprene. Atmospheric Environment, 41(6), 1267–1274. https://doi.org/10.1016/j.atmosenv.2006.09.051
Mendeley helps you to discover research relevant for your work.