Modeling Tips
Posts category: modeling-tips
15
May 2016
CALPUFF View - Modeling Roads
The CALPUFF modeling system does not feature a native source type for mobile sources (e.g., vehicles). One way to treat these emissions in the model is to calculate the cumulative emissions of all vehicles which drive on a road and parameterize the road itself into the model as the source. With the introduction of CALPUFF’s Version 7 Modeling System and the release of CALPUFF View Version 8.2.0, users have a few options as to how to model these sources in CALPUFF.
15
Apr 2016
CALPUFF View - CALPOST’s New NO2/NOX Ratio Option
CALPOST, the post-processing model of the CALPUFF modeling system, has long had the option to estimate concentrations of nitrogen dioxide (NO2) from model-calculated concentrations of total nitrogen oxides (NOX). The user provided a single ratio which was applied to all NOX concentrations. The latest update to the CALPUFF modeling system, Version 7 (released in June 2015) contained an update in CALPOST which allows users to specify ratios which vary with NOX concentration.
15
Mar 2016
AERMOD View - Removing Plant Receptors
When modeling with AERMOD, it’s common to remove receptors that fall within the boundary of the facility’s property so as to only calculate concentrations that fall in the ambient environment.
