||Air quality modeling of ozone on the regional scale /
Schere, Kenneth L.
||Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Sciences Research Lab.
|| U.S. Environmental Protection Agency, Office of Research and Development, Atmospheric Sciences Research Laboratory,
Mathematical models ;
Air pollution control ;
Urban areas ;
Photochemical reactions ;
Organic compounds ;
Air quality ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||10 pages ; 28 cm
Regional scale air quality models are needed for coordinated planning of emission control strategies to reduce the ozone pollutant burden. Urban scale models by themselves cannot provide the link from one source area to the next. In the paper the structural components of the more rigorous grid-type regional ozone models are described along with some of the issues that must yet be resolved to achieve credible regional scale simulations. Chief among these issues are the questions of the magnitude and photochemical effects of regional-scale biogenic organic emissions, the mass transfer from the lower to upper boundary layer by cloud fluxes, the lack of determinism in regional scale wind fields, and perhaps most critically, how to properly describe the subgrid scale chemical and physical processes within the enormous volume of a regional gridcell. The major components and recent applications of five representative regional scale air quality models are presented.
"Journal article." "EPA/600/J-88/326." "Published in Environmental Science & Technology, v.22, pp. 488-495, 1988." Microfiche.