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OTAG Technical Supporting Document
Chapter 2 Table of Contents

Information provided for informational purposes only Note: EPA no longer updates this information, but it may be useful for as a reference or resource.

Figures
Figures 1 - 30
Figures 31 - 50
Figures 51 - 79
Figures 80 - 95
Figures 96 - 123

1. Introduction
Background
Overview of Modeling System
Organizational Structure and Responsibilities
Data Availability
Expectations

2. Model Setup
Modeling Domain and Grid Configuration
Episode Selection
Emissions Modeling
     •Base-Year Emissions
     •Future-Year Emissions
     •Preparation of UAM-V
      Emissions Input Files
Meteorological Modeling
     •Application of RAMS
     •Application of SAIMM
     •Evaluation of
      Meteorological Fields
     •Preparation of UAM-V
      Meteorological
      Input Files
Photochemical Modeling
     •Domain Definition and
      Simulation Control
     •Emissions
     •Selection of Point
      Sources for Treatment
      With PiG
     •Meteorology
     •Air Quality
     •Chemistry

3. Basecase ModelingDevelopment of BasecaseDiagnostic Analyses Emissions
     •Boundary Conditions
     •Initial Concentrations
     •Deposition
     •Enhanced Vertical
      Resolution
     •Clouds
     •Rainfall
     •Vertical Diffusivity
     •FDDA
Basecase D2 ResultsModel Performance Evaluation
     •Model Performance
      for Ozone Implementation
     •Model Performance
      for Ozone Precursors
     •Model Performance
      Aloft

4. Sensitivity ModelingEmissions Sensitivity Tests
     •Standard
      Documentation
     •OTAG 2007 Baseline
      (Base1a)
     •Mixed Impacts
     •Regional Impacts
     •Nonattainment/
      Urban Attainment/
      Rural Attainment
     •Point Source
      and Mobile Source
      Impacts
     •Summary
Geographic Sensitivity
Tests
     •Standard
      Documentation
     •Overview of Results
     •Analysis of Results
     •Summary

5. Strategy Modeling
Round 1 Modeling
     •Standard
      Documentation
     •OTAG 2007 Baseline
      (Base1b)
     •Run 1
     •Run 3
     •Run 4b
     •Run 2
     •Comparison of
      Strategies
     •Eight-Hour Results
     •Summary
Round 2 Modeling
     •Standard
      Documentation
     •OTAG 2007 Baseline
      (Base1c)
     •Runs 5 Through 8
     •Runs 9 Through 12
     •Comparison of
      Strategies
     •Eight-Hour Results
     •Aloft Results
     •Summary
Round 3 Modeling
     •Standard
      Documentation
     •OTAG 2007 Baseline
      (Base1c)
     •Runs A Through I
     •Comparison of
      Strategies
     •Eight-Hour Results
     •Aloft Results
     •Summary
Supplemental Modeling
     •Geographic Runs
     •Results
     •Fuel Runs
     •Results
     •Coarse-Grid Impact
      Run
     •Results
     •Urban/Regional
      Linkage Runs
     •Results
     •Summary
Alternative Baseline Modeling

6. References

 

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