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OLS Field Name OLS Field Data
Main Title Photochemical Urban Airshed Modeling Using Diagnostic and Dynamic Meteorological Fields.
Author Godowitch, J. M. ; Vukovich, J. M. ;
CORP Author Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab. ;MCNC, Research Triangle Park, NC. North Carolina Supercomput ing Center.
Publisher Jun 94
Year Published 1994
Report Number EPA/600/A-94/092;
Stock Number PB94-176120
Additional Subjects Meteorological data ; Air pollution dispersion ; Reprints ; Ozone ; Photochemistry ; Three-dimensional models ; Mathematical models ; Wind(Meteorology) ; Air temperature ; Turbulent diffusion ; Mixing height ; Atmospheric circulation ; Regional airsheds ; Diagnostic techniques ; Dynamic models ; Urban areas ; Urban Airshed Model ; Eulerian photochemical grid model
Library Call Number Additional Info Location Last
NTIS  PB94-176120 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 09/01/1994
Collation 24p
Abstract Spatial pollutant patterns and peak concentrations are strongly influenced by meteorological parameters. Therefore, accurate hourly, gridded meteorological data sets are crucial inputs for photochemical modeling. An effort has been underway to apply both diagnostic and dynamic meteorological models in order to generate inputs needed in photochemical grid model simulations. The model being employed is a modified version of the Urban Airshed Model (UAM), which was designed to accept input files generated from both meteorological approaches. In this effort, both meteorological models were exercised in two different urban domains situated next to water bodies and with significant terrain features (i.e., greater metropolitan NYC and LA basin). A historical high ozone day in the NYC domain was simulated which exhibited a strong large scale flow pattern conducive to interurban transport along the northeastern coast. Results from simulations of an ozone episode from the 1987 Southern California Air Quality Study (SCAQS) indicated that the simulations using dynamic model winds with data assimilation displayed less absolute error than simulations using diagnostically or objectively-derived winds.
Supplementary Notes Presented at the Annual Air and Waste Management Association Meeting and Exhibition (87th), Cincinnati, OH., June 19-24, 1994. See also PB91-131243. Prepared in cooperation with MCNC, Research Triangle Park, NC. North Carolina Supercomput ing Center.
NTIS Title Notes Conference paper.
Title Annotations Reprint: Photochemical Urban Airshed Modeling Using Diagnostic and Dynamic Meteorological Fields.
Category Codes 68A; 55B; 91A
NTIS Prices PC A03/MF A01
Primary Description 600/09
Document Type NT
Cataloging Source NTIS/MT
Control Number 421721444
Origin NTIS
Type CAT