SLIDE 1
Evaluation of 2005 Multi-Pollutant Platform: Ozone, Particulate Matter, Deposition & Air Toxics
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What is a “Modeling Platform”?
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Evaluation of 2005 Multi-Pollutant Platform: Ozone, Particulate - - PowerPoint PPT Presentation
Evaluation of 2005 Multi-Pollutant Platform: Ozone, Particulate - - PowerPoint PPT Presentation
Evaluation of 2005 Multi-Pollutant Platform: Ozone, Particulate Matter, Deposition & Air Toxics
SLIDE 2
SLIDE 3
Components of 2005 MP Modeling Platform
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SLIDE 4
Why a Modeling Platform?
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SLIDE 5
36km Domain Boundary
CONUS Model Domains
9 12km East Domain Boundary 12km West Domain Boundary
SLIDE 6
2005 US Emissions Summary:
Selected Criteria Pollutants
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SLIDE 7
US Ambient Monitoring Networks
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SLIDE 8
2005 Ozone Monitor Sites
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SLIDE 9
2005 PM2.5 Monitor Sites
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SLIDE 10
2005 NADP Monitor Sites
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SLIDE 11
2005 Air Toxic Monitor Sites
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SLIDE 12
Model Performance Analysis
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SLIDE 13
What is AMET?
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Atmospheric Model Evaluation Tool v1.1
(www.cmascenter.org)
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SLIDE 14
User Modes
Script C-Shell
Manual
Command line
Model Evaluation Database
MySQL server database that stores all model-
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tables for access by analysis programs.
Analyses
Model Performance Plots Diurnal Statistics
Observations
STN, IMPROVE, CASTNet, NADP, AQS, SEARCH, MDN
Model Output
- CMAQ (IOAPI)
- MCIP (IOAPI)
- Uses Combine program
Observation-Model Synchronization
AMET-AQ Flow Chart
(; Generate database records (Uses extract_all.pl) Connect to database and insert records (Uses extract_all.pl and add_aq2dbase.pl) Command line
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statistical package
Interactive
Web-based or Java interface (future) Uses either web interface or existing PERL scripts to create required MySQL tables.
Other, User-developed tools
The MySQL database is a standard, widely used and easily connectable database that allows users to easily connect and extract data using
- ther software (Excel, Matlab, Perl,
SAS, etc.) Statistics Time series Spatial Statistics Box Plots Scatter Plots Bar Plots “Soccer Goal” Plots Bugle Plots Match obs. with model values in time and space using site compare and compare airs programs
SLIDE 15
Highlights of 2005 Model Evaluation for Criteria Air Pollutants
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SLIDE 16
2005 8-hr max. Ozone (May-September)
12-km WUS 12-km EUS
July 1st July 1st
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NMB = -7.8% NME = 11.7% NMB = - 6.8% NME = 13.3%
Applying a threshold
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SLIDE 17
2005 Summer Sulfate PM (June-July-August)
12-km EUS
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12-km WUS
12-km EUS 12-km WUS NMB (%) NME (%) NMB (%) NME (%) IMPROVE
- 32.9
40.3
- 32.2
43.8 STN
- 28.1
36.2
- 35.3
43.4 CASTNet
- 22.4
25.8
- 38.2
41.2
SLIDE 18
2005 Winter Nitrate PM (January-February-March)
12-km EUS
18
12-km WUS
12-km EUS 12-km WUS NMB (%) NME (%) NMB (%) NME (%) IMPROVE
- 2.0
59.2
- 33.6
62.1 STN
- 10.9
45.8
- 42.6
61.9 CASTNet (TNO3) 10.5 27.9 13.2 40.4
SLIDE 19
2005 Summer Organic Carbon (June-July-August)
12-km EUS
19
12-km WUS
12-km EUS 12-km WUS NMB (%) NME (%) NMB (%) NME (%) IMPROVE
- 47.9
54.4
- 12.3
59.7 STN
- 57.2
59.0
- 35.0
45.1
SLIDE 20
2005 Summer Elemental Carbon (June-July-August)
12-km EUS
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12-km WUS
12-km EUS 12-km WUS NMB (%) NME (%) NMB (%) NME (%) IMPROVE
- 42.3
51.1 1.4 60.8 STN 27.4 66.9 62.2 91.4
SLIDE 21
SO4 Wet Deposition
2005 Total
NADP 12-km EUS
21
12-km WUS Summer Mean
NMB (%) NME (%)
EUS 2.3 73.4 WUS
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73.9
SLIDE 22
NO3 Wet Deposition
2005 Total
12-km EUS 12-km WUS NADP
22
12-km WUS Winter Mean
NMB (%) NME (%)
EUS 23.5 70.1 WUS
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79.3
SLIDE 23
2005 Formaldehyde
Seasonal Means
12-km WUS 12-km EUS
NMB = - 49.2% NME = 54.4% NMB = - 21.3% NME = 54.5%
High observations – possibly due to short-term releases, near-source monitors, or instrument issues
SLIDE 24
2005 Acetaldehyde
Seasonal Means
12-km WUS 12-km EUS
NMB = - 1.6% NME = 49.0% NMB = - 13.9% NME = 50.7%
SLIDE 25
2005 Benzene
Seasonal Means
12-km WUS 12-km EUS
NMB = - 38.2% NME = 62.5% NMB = - 32.2% NME = 46.7%
Higher benzene concentrations at monitors near sources such as roadways so commensurability issue with coarse model gridcells
SLIDE 26
Summary
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SLIDE 27
Summary (continued)
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SLIDE 28
Future Efforts
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