کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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4443679 | 1311204 | 2007 | 8 صفحه PDF | دانلود رایگان |
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.
Journal: Atmospheric Environment - Volume 41, Issue 6, February 2007, Pages 1267–1274