Improving Simulations of Fine Dust Surface Concentrations over the Western United States by Optimizing the Particle Size Distribution

June 28, 2013

Journal Article

Improving Simulations of Fine Dust Surface Concentrations over the Western United States by Optimizing the Particle Size Distribution

Abstract

To improve estimates of remote contributions of dust to fine particulate matter (PM2.5) in the western United States, new dust particle size distributions (PSDs) based upon scale-invariant fragmentation theory (Kok_PSD) with constraints from in situ measurements (IMP_PSD) are implemented in a chemical transport model (GEOS-Chem). Compared to initial simulations, this leads to reductions in the mass of emitted dust particles with radii

Revised: August 27, 2013 | Published: June 28, 2013

Citation

Zhang L., J.F. Kok, D. Henze, Q. Li, and C. Zhao. 2013. Improving Simulations of Fine Dust Surface Concentrations over the Western United States by Optimizing the Particle Size Distribution. Geophysical Research Letters 40, no. 12:3270-3275. PNNL-SA-97240. doi:10.1002/grl.50591