Articles | Volume 15, issue 21
Atmos. Chem. Phys., 15, 12193–12209, 2015
Atmos. Chem. Phys., 15, 12193–12209, 2015

Research article 03 Nov 2015

Research article | 03 Nov 2015

Assessment of long-term WRF–CMAQ simulations for understanding direct aerosol effects on radiation "brightening" in the United States

C.-M. Gan et al.

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Cited articles

Appel, K. W., Pouliot, G. A., Simon, H., Sarwar, G., Pye, H. O. T., Napelenok, S. L., Akhtar, F., and Roselle, S. J.: Evaluation of dust and trace metal estimates from the Community Multiscale Air Quality (CMAQ) model version 5.0, Geosci. Model Dev., 6, 883–899,, 2013.
Augustine, J. A. and Dutton, E. G.: Variability of the surface radiation budget over the United States from 1996 through 2011 from high-quality measurements, J. Geophys. Res. Atmos., 118, 43–53,, 2013.
Blanchard, C. L., Hidy, G. M., Tanenbaum, S., Edgerton, E. S., and Hartsell, B. E.: The Southeastern Aerosol Research and Characterization (SEARCH) study: Temporal trends in gas and PM concentrations and composition, 1999–2010, JAPCA J. Air Waste Ma., 63, 247–259, 2013.
Carlton, A. G., Bhave, P., Napelenok, S., Edney, E. O., Sarwar, G., Pinder, R. W., Pouliot, G., and Houyoux, M.: Model Representation of Secondary Organic Aerosol in CMAQ v4.7, Environ. Sci. Technol., American Chemical Society, Washington, DC, 44, 8553–8560, 2010.
Short summary
This study attempts to determine the consequences of the changes in tropospheric aerosol burden arising from substantial reductions in emissions of SO2 and NOx associated with control measures under the Clean Air Act especially on trends in solar radiation. Comparisons of model results with observations of aerosol optical depth, aerosol concentration, and radiation demonstrate that the coupled WRF-CMAQ model is capable of replicating the trends well even though it tends to underestimate the AOD.
Final-revised paper