Articles | Volume 8, issue 9
Geosci. Model Dev., 8, 2877–2892, 2015
https://doi.org/10.5194/gmd-8-2877-2015
Geosci. Model Dev., 8, 2877–2892, 2015
https://doi.org/10.5194/gmd-8-2877-2015

Development and technical paper 15 Sep 2015

Development and technical paper | 15 Sep 2015

Evaluation of the Community Multiscale Air Quality (CMAQ) model v5.0 against size-resolved measurements of inorganic particle composition across sites in North America

C. G. Nolte et al.

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Short summary
This study is the most comprehensive evaluation of CMAQ inorganic aerosol size-composition distributions conducted to date. We compare two methods of inferring PM2.5 concentrations from the model: (1) based on the sum of the masses in the fine aerosol modes, as is most commonly done in CMAQ model evaluation; and (2) computed using the simulated size distributions. Differences are generally less than 1 microgram/m3, and are largest over the eastern USA during the summer.