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Regional Aerosol Mass and Extinction
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The following link leads to maps which depict the average, deciview, and standard visual range of the 20% worst days monitored in
the WRAP region in 2002. These products are similar in style and content to what is available for the entire U.S. on the VIEWS Web site, but were modified
to include only data from 68 western IMPROVE monitoring sites. Since no data from urban monitoring sites were included in the generation of these products,
the results should be interpreted for wilderness areas only. (All maps were generated by Rodger Ames of CIRA.)
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Regional Visibility Maps
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Regional Emissions
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The following link leads to maps which depict the 36x36 km gridded emissions summaries for the CMAQ modeling domain. Maps are available for NOx,
SO2, VOC, NH3, PM2.5 and PMC emissions, displayed in tons/year. Emissions for each grid cell on each map represent summations from categories
including point, area, mobile, dust, fire and biogenic sources. These maps display the interim emissions used in Phase I of the AoH project. Links to detailed emissions inventories can be found under Emissions Inventory Information below.
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Regional Emissions Maps
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State Emissions
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The following link leads to state specific maps of the same emissions data displayed above, and with the addition of Class I areas, major cities,
and interstate highways for reference.
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State Emissions Maps
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Emissions Inventory Information
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The following links lead to the emissions inventory data used for the AoH project and the most current emissions inventory data in the WRAP
Emissions Data Management System (EDMS) database.
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AoH Emissions Inventories
WRAP EDMS
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Apportionment of State Emissions to Class I Areas
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The following links lead to charts and tables displaying the apportionment of state contributions of sulfate (SO4), nitrate (NO3), and extinction to Class I areas within the WRAP region. Charts have been generated based on the Tagged Species Source Apportionment (TSSA) method. Only the Class I areas with the highest contribution percentages are included (typically shown are contributions down to about 5%). The data table (Excel) file contains TSSA and Trajectory Regression Analysis (TRA) results summarized for all states and Class I areas in tabular format.
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TSSA Apportionment (% of CIA Species Mass)
Data Tables for TSSA and TRA Apportionment
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