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Evaluation of CMAQ PM Results Using Size-resolved Field Measurement Data: The Particle Diameter Issue and Its Impact on Model Performance Assessment

  • Weimin Jiang
  • Éric Giroux
  • Helmut Roth
  • Dazhong Yin
Conference paper

One uncertainty in evaluating particulate matter (PM) modelling results is caused by mismatches among regulated, measured, and modelled particle diameters. Current PM regulations are based on the aerodynamic diameter (EPA, 2004). PM measurements also target the aerodynamic diameter in order to address regulatory concerns. However, in air quality models, particles are often modelled on the basis of the Stokes diameter. To evaluate model performance using size–resolved measurement data, it seems logical that modelling results should be given in the aerodynamic diameter.

Keywords

Aerodynamic Diameter Mode Particle Surface Area Concentration Evaluate Model Performance Total Mass Concentration 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Weimin Jiang
    • 1
  • Éric Giroux
    • 2
  • Helmut Roth
    • 2
  • Dazhong Yin
    • 2
  1. 1.National Research Council of CanadaOttawaCanada
  2. 2.National Research Council of CanadaOttawaCanada

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