AERMOD View: AERMOD’s New RLINE Source Type
The U.S. EPA released the latest update to the AERMOD modeling system – dated 19191 – on August 21, 2019. One of the major formulation updates in this release is the addition of the RLINE source type .
- October 15, 2019
- September 16, 2019
Lakes Software Applications: Plant Blanking Boundary Layer
When viewing results from an air dispersion model run, the primary concern of many modelers are conditions measured at receptors located in areas generally accessible by the public. This may preclude modeling from occurring within well-defined property boundaries that restrict public access to a facility.
- August 15, 2019
AERMOD View: Using the New AERSURFACE Utility
AERSURFACE is a tool developed by the U.S. Environmental Protection Agency (US EPA) which uses digital land cover data to objectively calculate numeric values of surface characteristics (i.e. albedo, Bowen ratio, and surface roughness) required by AERMET, the meteorological preprocessor for the AERMOD air dispersion model.
- July 16, 2019
AERMOD View: Import Discrete Receptors
The latest update to AERMOD View, Version 9.7, expands the discrete receptor import capabilities making it easier to add receptors – including sensitive receptors – to a project. Using the application-supported CSV file format, AERMOD View can now import additional parameters such as Receptor ID and sensitive receptor flags.
- June 17, 2019
AERMOD View: AERMET View’s Surface Met Data QA
The latest update to AERMET View (Version 9.7) includes a new tool which automates the process of assessing meteorological data quality using advanced quality assurance (QA) procedures. In a previous Modeling Tip, we highlighted the QA options built into the AERMET model. The tool analyzes the surface file output by AERMET (*.SFC) and reports quality of variables being passed to the AERMOD model.
- May 22, 2019
AERMOD View: Defining Domain in AERMAP
AERMAP is the US EPA’s terrain preprocessor for the AERMOD modeling system. AERMAP reads digital terrain data (e.g., USGS 3DEP [formerly NED] digital elevation models in GeoTIFF format) and calculates base elevations for sources and receptors and hill height scale factors for receptors. An integral part of executing AERMAP is identifying the files which will cover the modeling domain and satisfy these calculations.