19
Mar 2024
When conducting an air dispersion modeling analysis, modelers may want to know not just what the value of the maximum concentration is but also how frequently concentrations exceed some upper limit or threshold. The U.S. EPA AERMOD air dispersion model comes with an option to extract these exceedances: the Threshold Violation File or MAXIFILE. Lakes Software’s AERMOD View application goes a step further and automatically counts those exceedances so that modelers can easily determine the frequency of such violations.
20
Feb 2024
The AERMOD modeling system contains many flexible output options so users can define the types of output that will work best for their unique situations. Despite this flexibility, some components of AERMOD’s code are limited to specific units or file types. For example, users can modify the default emission & output units but these units are still mass-based.
18
Jan 2024
We previously discussed a fundamental limitation of the CALPUFF modeling system which places finite limits on how many objects and calculations the various system executables can handle in a single project. One area where modelers can experience this limitation is in defining output values in the CALPOST model for post-processing CALPUFF model results.
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