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Practical Air Dispersion Modeling Workshop
This 3-day hands-on computer training course focuses on the
practical use of the popular airdispersion modeling software
– AERMOD and AERSCREEN. These models are
the preferred U.S. EPA models for computing ambient impacts of
air pollutants emitted from
industrial sources.
The course will focus on the fundamentals of air dispersion
modeling with hands onapplication of BREEZE® modeling software.
Students will set up, run, and analyze variousscenarios
specifically designed to introduce them to the model options that
can have asignificant impact on model output. Students will learn
about model sensitivity, interpretingresults, and how to
graphically present results (e.g., contour analyses) for easy
interpretation.
Course Fee: $1,699 (15% discount for three or more registrants
from the same company) – Includes refreshments and
lunch.
Course Manual: Practical Guide to Atmospheric Dispersion
Modeling,Copyright © 2007 Trinity Consultants, Inc. and Air &
Waste Management Association.
About Trinity ConsultantsTrinity Consultants is a leading
provider of environmental consultingservices to industry, offering
expertise in the areas of regulatorycompliance, strategic
environmental management, environmental datamanagement, and
environmental education. Our instructors are full-timeconsultants
with extensive experience in their area of instruction. Their
daily, direct experience with actual projects and issues
translates into a practical, highly effective learning
opportunity.
How To RegisterSeating is limited, so please register early
By phone: +972-661-8100 and ask for the Education dept.
Online at: TrinityConsultants.com/Training
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AGENDA
8:30 am – 5:00pm
Review of Air Dispersion Modeling Concepts
Introduction
Advantages of Dispersion Modeling
Types of Sources Accuracy of Calculations
A Layman’s Crash Course on the Physics of the
Atmosphere – Its Character, Variability, and
Subjective Effect on Pollutant Releases
Wind
Vertical Structure, Gradient Wind, SurfaceRoughness
Turbulence
Vertical Thermal Structure of the Atmosphere
Plume Types
Mixing Height
Boundary Layer
Estimating the Effective Height of Sources
Stack-Tip Downwash
Buoyancy Flux
Momentum Flux
Final Plume Rise
Plume Rise in AERMOD
Discharges that Limit Plume Rise
Rise from Merged Plumes
Estimating Dispersion from Continuous Releases
The Gaussian Distribution Concentrations from Continuous
Releases by
Point Sources
Estimating Dispersion from Puff, Line, and Area
Sources
Estimating Dispersion from Area Sources
Volume Sources
Inputs to Models
Control Data
Source Data
Meteorological Data
Receptor Data Output Options
Screening Models
Performing worst case screening analyses
The AERSCREEN model
Steps in Performing an Air Quality Analysis
Application of Modelso Screeningo
Refined Modelingo Area of Impacto Modeling
Gridso Multi-pollutant Modelingo Modeling Storage Tanks
& Piles
Quality Assurance of Input and Output
The AERMOD Modeling System
Working with Data Display Views
Model Options
Model Objectso Source Typeso Source
Enhancements
o
Receptor Typeso Buildingso Object Arrays
Project File Management
Data Visualization and Analysis
Productivity tools
Contour analysis
Plotting model results in Google Earth
“What-if ” Scenarios
Model sensitivity
Variable emission rates Efficiently comparing
variations
Downwash of Plumes by Structures
Characteristics of Wakes
PRIME
Good Engineering Practice (GEP) Stack
HeightRegulations
Consideration of Terrain in Modeling
Terrain Nomenclature
Treatment of Terrain
Complex Terrain Treatment by AERMOD
Fundamentals of Meteorological Data Processing
AERMET – The meteorological
preprocessorto AERMOD
AERMINUTE – Processing 1-minute data
Micrometeorological parameters (Bowen ratio,albedo, and
surface roughness)
Using MetView to create Windrose
