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Published in:
2014 | OriginalPaper | Chapter
78. Diagnostic Evaluation of Carbon Sources in CMAQ
Authors : Sergey L. Napelenok, Prakash V. Bhave, Heather Simon, George A. Pouliot, Michael Lewandowski, Rebecca Sheesley
Published in: Air Pollution Modeling and its Application XXII
Publisher: Springer Netherlands
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Abstract
Traditional monitoring networks measure only total elemental carbon (EC) and organic carbon (OC) routinely. Diagnosing model biases with such limited information is difficult. Measurements of organic tracer compounds have recently become available and allow for more detailed diagnostic evaluation of CMAQ modeling results, which allow for more explicit representation of secondary organic aerosols. An enhanced version of the model makes it possible to track contributions from various sources of primary organic aerosols and elemental carbon, providing more in-depth evaluation of model biases. An ambient PM2.5 measurement campaign conducted in four Midwestern U.S. cities in March 2004 February 2005 allows for direct comparison of modeled and measured organic carbon concentrations by primary and secondary source category.