Articles | Volume 8, issue 4
Development and technical paper
07 Apr 2015
Development and technical paper |  | 07 Apr 2015

Twelve-month, 12 km resolution North American WRF-Chem v3.4 air quality simulation: performance evaluation

C. W. Tessum, J. D. Hill, and J. D. Marshall


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Christopher Tessum on behalf of the Authors (24 Feb 2015)  Author's response 
ED: Publish as is (09 Mar 2015) by Volker Grewe
AR by Christopher Tessum on behalf of the Authors (13 Mar 2015)
Short summary
We evaluate the predictive performance of a 12-month, 12km horizontal resolution WRF-Chem air quality model simulation for the contiguous United States. Model performance is comparable to other contemporary models used for regulatory and health-effects analysis, with 12% bias for daytime ozone and -1% bias for fine particulate matter (PM2.5). Performance for PM2.5 is worse in winter and in the western U.S. than in other seasons and regions, suggesting opportunities for future model development.