文档介绍：NEAQS-ITCT 2004 Science and Implementation Plan
“Understanding our global environmental and our role in it is the first step toward living in better harmony with nature.”
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Reports to the Nation: Our Changing
What is the NEAQS-ITCT?
NEAQS-ITCT ???
NEAQS ??
New England Air Quality Study
ITCT ??
Intercontinental Transport and Chemical Transformation
NEAQS-ITCT
Five Research Areas (Science Questions)
Emissions verification
Transport and mixing
Chemical transformation
Aerosol properties and radiative effects
Forecast models
work
To characterize in 2004 and to develop a climatology of boundary-layer structure along the New England coast (., an ABL-scale issue).
To measure lower tropospheric winds with sufficient horizontal resolution to characterize transport corridors in the Northeast (., a regional-scale issue).
Emissions verification
How well do current inventories represent actual emissions for: cities, point sources, ships, and vegetation?
How well are the ratios of co-emitted pollutants represented in existing emissions inventories?
How well are the absolute amounts of emitted pollutants represented in inventories?
How well are the spatial patterns of emissions represented in inventories?
How well are temporal variations in emissions strength and composition represented in inventories?
Emissions ratios
Data generated in near-field plume transects within or immediately downwind of source regions can be used to assess emissions ratios of pairs of co-pounds.
For well-operated instruments, this uncertainty can be less than +/- 10%, providing an independent and accurate check on the ratio calculated from an emissions inventory.
WP-3D
Ronald H. Brown
Highly time-resolved data from continuous emissions monitoring systems (CEMS) can be pared to ambient plume measurements taken concurently.
The slope of a two-sided linear regression fit to the plume transect data will give a direct measure of the emission ratio.
Deployment Strate