IMAQS

1
WELCOME
IMAQS Institute for Multidimensional Air
Quality Studies The University of
Houston Director Daewon Byun TFORS Coordinator
Alex Cuclis
2
TFORS TRANSITION
Ownership is Shifting
From EIH at UHCL
To IMAQS at UH
3
TFORS AGENDA

• TCEQ Update Kelly Keel
• UH IMAQS TFORS Scenario Simulation with CAMx
  Alex Cuclis
• A. The Scenario Process
• B. Results Pictures
• C. Results Peak Ozone Values
• D. Discussion on these Results
• 3. Discussion about future Scenarios
• 4. TFORS Roles and Direction

4
The Scenario Process TCEQ Runs
base4a.regular
unadjusted
base4a.pt_o2n2_070pbl
adjusted

• - HRVOC-NOx adjustment to point source emissions
• - 30 pbl reductions on all days except August 30
• Profiler-based adjustment on August 30
• Both cases were run at UH. Average difference
  files showed very small (10 -10 ) differences
  between results.
• Sensitivity testing will be performed on the
  adjusted case because it more accurately
  reflects reality.

-7
-9
5
The Scenario Process
Mobile6 Karl Pepple
EPS 2.0 Violeta Coarfa
Preprocessing Soontae Kim
CAMx Beata Czader
6
The Scenario Process
20 Reduction of VMT
Case 1
NO Mobile Emissions
NO Total Emissions
7
The Scenario Process
20 Reduction of VMT
Case 1
CO Mobile Emissions
CO Total Emissions
8
The Scenario Process
20 Reduction of VMT
Case 1
VOC/NOx Ratio
9
The Scenario Process
VMT Mix 2 x SUVs
Case 2
VMT Mix SensitivityEffects on LDG VMT
10
The Scenario Process
VMT Mix 2 x SUVs
Case 2
VMT Mix SensitivityEffects on LDD VMT
11
The Scenario Process
VMT Mix 2 x SUVs
Case 2
12
The Scenario Process
VMT Mix 2 x SUVs
Case 2
13
The Results Aug. 25,29,30,31
14
The Results Aug 25
base4a.pt_o2n2_070pbl
Base - 20 Reduction of VMT
4 km
15
The Results Aug 25
base4a.pt_o2n2_070pbl
Base - 20 Reduction of VMT
1 km
16
The Results Aug 29
base4a.pt_o2n2_070pbl
Base - 20 Reduction of VMT
4 km
17
The Results Aug 29
base4a.pt_o2n2_070pbl
Base - 20 Reduction of VMT
1 km
18
The Results Aug 30
base4a.pt_o2n2_070pbl
Base - 20 Reduction of VMT
4 km
19
The Results Aug 30
base4a.pt_o2n2_070pbl
Base - 20 Reduction of VMT
1 km
20
The Results Aug 31
base4a.pt_o2n2_070pbl
Base - 20 Reduction of VMT
4 km
21
The Results Aug 31
base4a.pt_o2n2_070pbl
Base - 20 Reduction of VMT
1 km
22
The Results Aug 25
base4a.pt_o2n2_070pbl
Base - VMT Mix 2 x SUVs
4 km
23
The Results Aug 25
base4a.pt_o2n2_070pbl
Base - VMT Mix 2 x SUVs
1 km
24
The Results Peak Ozone
August 2002
29
30
31
25
base4a.pt_o2n2_070pbl
173
161
160
209
20 Reduction of VMT
171
159
167
212
VMT Mix 2 x SUVs
209
160
Ozone in ppb
25
Summary

• For VMT-20 3 days show some increases in ozone,
  and one day (Aug. 31) only shows decreases in
  ozone. Need to understand why.
• For the VMT Mix Sensitivity changes are less
  than 1 ppb.
• Impacts of these changes will be different if
  implemented AFTER other SIP rules.

26
Discussion Issues

• Need to understand TCEQs run for future case
  ozone. (fy07b.pt_har37e55_070pbl).
• Need to consider point source scenarios along
  with mobile.
• Need to consider comparing CAMx to CMAQ.