| Main Title |
Evaluating simple oxidant prediction methods using complex photochemical models : cluster analysis applied to urban ozone characteristics / |
| Author |
Hillyer, M. J. ;
Hillyer, Martin S.
|
| CORP Author |
Systems Applications, Inc., San Rafael, CA.;Environmental Protection Agency, Research Triangle Park, NC. Office of Air Quality Planning and Standards. |
| Publisher |
U.S. Environmental Protection Agency, Office of Air Quality Planning and Standards, |
| Year Published |
1981 |
| Report Number |
EPA-450/4-81-031 e; SAI-81176; EPA-68-02-2870; EPA-450/4-81-031E; PB82234212 |
| Stock Number |
PB82-234212 |
| OCLC Number |
09661007 |
| Subjects |
Cluster analysis ;
Atmospheric ozone--United States ;
Air--Pollution--United States
|
| Additional Subjects |
Air pollution ;
Ozone ;
Clustering ;
Mathematical modeling ;
Urban areas ;
Nitrogen oxides ;
Classification
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EKBD |
EPA-450/4-81-031e |
|
Research Triangle Park Library/RTP, NC |
08/27/1999 |
| ELBD ARCHIVE |
EPA-450/4-81-031e |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| ESAD |
EPA 450-4-81-031E |
|
Region 10 Library/Seattle,WA |
03/23/2010 |
| NTIS |
PB82-234212 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
v, 34 p. : ill., 1 map ; 28 cm. |
| Abstract |
This report describes efforts to classify cities observing ozone levels greater than 0.12 ppm into distinct subgroups. Cluster analysis, using such factors mixing height, wind speed, temperature, NMOC/NOx ratio and type of precursor sources, is used to identify subgroups of cities. Identification of a limited number of such subgroups could provide a means for more convincingly demonstrating the general applicability of complex photochemical models by conducting validation exercises in cities representative of each subgroup. The report indicates that the technique shows promise but, nevertheless, requires some further refinement before it can be used to identify most appropriate subgroups. |
| Notes |
"September 1981." "EPA-450/4-81-031e." Bibliography: p. R-1. 68-02-2870. |
