A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Model evidence for a significant source of secondary organic aerosol from isoprene
AbstractWe 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 0.6–1.0μgm−3 in the southeastern United States reduces the regional RMSE to 0.88μgm−3 from 1.26μgm−3. Spring and fall biases are also reduced, with little change in winter when isoprene emissions are negligible.
Model evidence for a significant source of secondary organic aerosol from isoprene
AbstractWe 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 0.6–1.0μgm−3 in the southeastern United States reduces the regional RMSE to 0.88μgm−3 from 1.26μgm−3. Spring and fall biases are also reduced, with little change in winter when isoprene emissions are negligible.
Model evidence for a significant source of secondary organic aerosol from isoprene
van Donkelaar, Aaron (author) / Martin, Randall V. (author) / Park, Rokjin J. (author) / Heald, Colette L. (author) / Fu, Tzung-May (author) / Liao, Hong (author) / Guenther, Alex (author)
Atmospheric Environment ; 41 ; 1267-1274
2006-09-22
8 pages
Article (Journal)
Electronic Resource
English