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Estimating Plume Dispersion-A Comparison of Several Sigma Schemes
Publisher: American Meteorological Society
Abstract: The lateral and vertical Gaussian plume dispersion parameters are estimated and compared with fieldtracer data collected at II sites. The dispersion parameter schemes used in this analysis include Cramer'sscheme, suggested ...
Using CMAQ for Exposure Modeling and Characterizing the Subgrid Variability for Exposure Estimates
Publisher: American Meteorological Society
Abstract: Atmospheric processes and the associated transport and dispersion of atmospheric pollutants are known to be highly variable in time and space. Current air-quality models that characterize atmospheric chemistry effects, for ...
Improving Concentration Measures Used for Evaluating Air Quality Models
Publisher: American Meteorological Society
Abstract: An unfortunate difficulty in model evaluation is that the concentration measure that most models predict, namely the ensemble mean concentration under the plume centerline (or at some location relative to the plume ...
Probabilistic Characterization of Atmospheric Transport and Diffusion
Publisher: American Meteorological Society
Abstract: The observed scatter of observations about air quality model predictions stems from a combination of naturally occurring stochastic variations that are impossible for any model to simulate explicitly and variations arising ...
A Review of Procedures for Updating Air Quality Modeling Techniques for Regulatory Programs
Publisher: American Meteorological Society
Abstract: Air quality models are a key component in determining pollution control requirements. To ensure that the best techniques are used, modeling guidance must be flexible and include better techniques as they become available. ...
Improvements to the EPA Industrial Source Complex Dispersion Model
Publisher: American Meteorological Society
Abstract: Air quality models are a key component in determining air pollution control requirements. The Industrial Source Complex (ISC2) model is a steady-state Gaussian plume model that is used for modeling point, area, volume, and ...