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RECORD NUMBER: 25 OF 31

Main Title Influence of Vertical Resolution on the Diurnal Ozone Concentrations in a Regional Photochemical Model: A Preliminary Study with Window RADM.
Author Byun, D. W.; Dennis, R. L.;
CORP Author Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab. ;National Oceanic and Atmospheric Administration, Research Triangle Park, NC. Atmospheric Sciences Modeling Div.
Publisher 1994
Year Published 1994
Report Number EPA/600/A-93/289;
Stock Number PB94-130093
Subjects Ozone; Photochemical reactions; Diurnal variations; Exhaust emissions; Air pollution monitoring; Predictions; Bias; Regional analysis; Atmospheric diffusion; Atmospheric chemistry; Atmospheric models; Nitrogen oxides; Reprints; RADM(Regional Acid Deposition Model)
Holdings
Library   Call Number Additional Info Location Date Modified
NTIS PB94-130093 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 05/14/1994
Collation 20p
Abstract The present paper tested one of the hypotheses on the inability of regional air quality models in capturing dynamic range of diurnal ozone variations in the cells away from urban or large NOx emissions sources. It focused on the model bias caused by the limited vertical resolution of the emissions layer. The tests with a simple box model and a modified version of limited domain Regional Acid Deposition Model (WRADM) suggest that predictions of nighttime ozone minimum concentrations by the regional models can be improved by introducing vertical layers that limit excessive vertical dilution of surface emissions from area and mobile NOx emissions. The increased vertical resolution not only helps the depiction of emissions distribution, but also provides a more realistic set of meteorological input parameter values to the model, which in turn improves the model predictions of daily minimum ozone concentrations.
Supplementary Notes Prepared in cooperation with National Oceanic and Atmospheric Administration, Research Triangle Park, NC. Atmospheric Sciences Modeling Div.
Title Annotations Reprint: Influence of Vertical Resolution on the Diurnal Ozone Concentrations in a Regional Photochemical Model: A Preliminary Study with Window RADM.
Category Codes 68A; 99F
NTIS Prices PC A03/MF A01
Primary Description 600/09
Document Type NT
Control Number 404816990
Cataloging Source NTIS/MT
Origin NTIS
Type CAT