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The 81,340-acre Bering Sea Wilderness Area consists of Saint Matthew Island and the nearby small Hall and Pinnacle Islands, ~ 375 km (233 mi) off the coast of western Alaska in the Bering Sea. It is in the North Pacific maritime influence. Topography of the islands is rugged hills and cliffs interspersed with flat terrain. Elevations range from sea level to cliff top elevations above 460 m (1,500 ft). The Bering Sea Wilderness Area is the most isolated Wilderness Area. There are no nearby representative IMPROVE sites. The nearest maritime IMPROVE site is the Simeonof IMPROVE site, SIME1, in the Aleutian chain.
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Regional Modeling Center TSSA Data Products
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The following link points to the Regional Modeling Center's TSSA results Web page. The RMC results contain more detailed information than what is presented in the
source apportionment comparisons above.
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RMC TSSA Data
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Causes of Haze Data Products
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The following link opens a Class I area-specific site and data descriptions page on the Causes of Haze Web site. The page contains a series of links to
descriptive pages for aerosol data, meteorological conditions, emissions information, and trajectory regression analysis (TRA) results. The TRA results
contain more detailed information than what is presented in the source apportionment comparisons above.
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COHA Site Assessment
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Causes of Haze Back Trajectory Map Gallery
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The following link opens a Class I area-specific map gallery of back trajectory products on the Causes of Haze Web site. The page contains a drop down
menu that can be used to select from a variety of back trajectory map products. Of particular relevance to this report are the following maps: 3-yr
Total Residence Time; worst 20% Sulfate Residence Time; worst 20% Sulfate Residence Time Difference; and worst 20% Sulfate Conditional Probability.
Similar maps are available for other aerosol species. These maps can be used in conjunction with TSSA and TRA results to better understand geographic
source regions.
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COHA Back Trajectory Map Gallery
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Monitoring Site Information on VIEWS Web Site
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The following link opens a Class I area-specific Monitoring Site Browser on the VIEWS Web site. Available on this page are monitoring site specifications,
photos, maps, histories.
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VIEWS Monitoring Site Browser (Not available for this Class I Area)
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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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