AERMOD View: Decrease AERMAP Runtimes
AERMAP is the US EPA’s terrain preprocessor for the AERMOD modeling system. AERMAP reads digital terrain and calculates base elevations for sources and receptors and hill height scale factors for receptors.
- January 19, 2022
- December 15, 2021
AERMOD View: Concentration File Maker Utility
The AERMOD air dispersion model allows users to input time-varying concentration data to represent background sources to be added to the model’s calculations. This can be done by directly adding background concentrations to modeled pollutant concentrations or, in the case of nitrogen dioxide (NO2), by adding background ozone or NOx concentrations to assist in estimating how much NO2 is formed through chemical transformation.
- September 16, 2021
AERMOD View: Graphical Options: Using Layouts
As we have discussed in this space before, presenting high-quality graphical depictions of air dispersion modeling output is vital to communicating the meaning of the calculations. The Graphical Options within Lakes Software’s wide range of commercial products give users the customization options that modelers need.
- August 19, 2021
AERMOD View: Grouping Options in Source Pathway
The AERMOD air dispersion model features many different settings which provide users the ability to customize how model output is presented. Within the model’s Source Pathway are multiple options for grouping sources, but just what do all these different groups mean?
- July 28, 2021
AERMOD View: PVMRM Bug in AERMOD 21112
The Plume Volume Molar Ratio Method (PVMRM) is one of several methods built into AERMOD for assessing the conversion of NOX to NO2. Originally developed by Hanrahan as a post-processor for the ISCST3 model, this conversion method is considered a Tier 3 screening method according to the Guideline on Air Quality Models (Appendix W to 40 CFR Part 51).
- June 28, 2021
AERMOD View: Working with Different Model Versions
Numerous versions of the AERMOD model have been released over the years. These updates include new algorithms, enhancements to existing features, bug fixes, and more.