Development of a NOx Chemistry Module for EDMS/AEDT to Predict NO2 Concentrations (2017) / Chapter Skim
Currently Skimming:
Pages 6-15
The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.
From page 6... ...
6 presumably by the oxidation of NO resulting from the elevated peroxy radicals concentrations in the aircraft engine plume. 2.4 Airport Dispersion Modeling Compared to other sources of emissions (e.g., industrial, manufacturing, etc.)
|
From page 7... ...
7 computing NO2 concentrations) evaluated in support of this Research Project are described in the following material.
|
From page 8... ...
8 Plume Volume Molar Ratio Method (PVMRM) ‐ The PVMRM takes into account the plume size and models the reactions along the length of the plume.
|
From page 9... ...
9 CMAQ - The Community Multiscale Air Quality model is the U.S. EPA's grid-based, regional air quality model.
|
From page 10... ...
SCIC requ atmo Sour for sourc of lin gridd mod is a c than shou allow quali Trea II (A maki whil acco User Full mod refle Use the o of so using mete prov Mod be re of w limit mod make comp gene acco appli User of ev This spec cond Fines mod Gaus time resol depe HEM and C irements if t spheric data ce‐specific m the flexibilit es, except fo e sources) a ed areas, alt el some speci haracterizati the capabilit ld be applica greater de ty conditions tment of NO RM/ARM2)
|
From page 11... ...
11 background concentrations, etc. also provide compatible resolution(s)
|
From page 12... ...
Hierarchical Mappin 12 g of Models/Methods Preferences
|
From page 13... ...
13 Table 3. Overview of Model Properties and Characteristics Model EPA Classification Common Uses Underlying Method Pollutants NOx Chemistry Application Source Types Terrain Modeling Spatial Range Temporal Resolution AERMOD On EPA's Preferred / Recommended List Used for most regulatory point source assessments. Contained within EDMS Steady-State Gaussian Plume Any relatively stable, primary pollutant (e.g., CO, TSP, PM2.5, PM10)
|
From page 14... ...
14 Table 4. Overview and Comparison of AERMOD and Alternative Model Assets and Limitations Evaluation Criteria AERMOD CALINE4 CALPUFF CMAQ SCICHEM Tier 1 (Full Cnv.) Tier 2 ARM Tier 3 Simple 1 st Order Reactions Pseudo 1st Order Full Chemistry (CB05)
|
From page 15... ...
15 From the comprehensive evaluation of the models/methods presented above, and the ratings of the models/methods illustrated above, the Research Team concluded that the AERMOD-based options offer the best overall solution, given the goals and objectives of the research. Therefore, the research was focused on those methods.
|
Key Terms
This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More
information on Chapter Skim is available.