Main Title |
Intercomparison of Two Regional Photochemical Models. |
Author |
Mathur, R. ;
Hanna, A. F. ;
Schere, K. L. ;
Dennis, R. L. ;
|
CORP Author |
MCNC, Research Triangle Park, NC. North Carolina Supercomputing Center. ;National Oceanic and Atmospheric Administration, Research Triangle Park, NC. Atmospheric Sciences Modeling Div.;Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab. |
Publisher |
1994 |
Year Published |
1994 |
Report Number |
EPA-R816496; EPA/600/A-94/164; |
Stock Number |
PB94-210549 |
Additional Subjects |
Atmospheric chemistry ;
Photochemical reactions ;
Air pollution ;
Mathematical models ;
Concentration(Composition) ;
Regional analysis ;
Comparative evaluation ;
Oxidation ;
Acid rain ;
Ozone ;
Predictions ;
Nitrogen oxides ;
Peroxy organic compounds ;
RADM(Regional Acid Deposition Model) ;
Regional Acid Deposition Model ;
ROM(Regional Oxidant Model) ;
Regional Oxidant Model
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB94-210549 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
18p |
Abstract |
The study attempts to investigate the relative predictability of two major regional scale photochemical models by comparing concentration predictions for various atmospheric chemical species. The Regional Acid Deposition Model (RADM) and the Regional Oxidant Model (ROM) are used to simulate a specific ozone episode over the northeast United States. Trends in spatial and temporal distributions of various photochemical species are compared. Further, the ability of the two models to elucidate relationships between precursor species such as NOx and hydrocarbons with secondary pollutants such as O3, PAN, HNO3, and H202 is examined. Results from the initial phase of the study indicate that although the models show similar spatial patterns of species concentrations, systematic differences in their predictions do occur. The differences result from a combination of effects arising from among others, differences in input emissions and meteorology, numerical representation of the processes and differences inherent to the chemical mechanisms and formulation of the models. |
Supplementary Notes |
Prepared in cooperation with National Oceanic and Atmospheric Administration, Research Triangle Park, NC. Atmospheric Sciences Modeling Div. Sponsored by Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab. |
NTIS Title Notes |
Conference paper Jan 93-Apr 94. |
Category Codes |
55A; 99E |
NTIS Prices |
PC A03/MF A01 |
Primary Description |
600/09 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
428724605 |
Origin |
NTIS |
Type |
CAT |