| Main Title |
Impact of Meteorology on Ozone in Houston. |
| Author |
Eder, B. K. ;
Davis, J. M. ;
Nychka, D. ;
|
| CORP Author |
National Oceanic and Atmospheric Administration, Research Triangle Park, NC. Atmospheric Sciences Modeling Div. ;National Inst. for Statistical Sciences, Research Triangle Park, NC. ;North Carolina State Univ. at Raleigh.;Environmental Protection Agency, Research Triangle Park, NC. National Exposure Research Lab. |
| Publisher |
1997 |
| Year Published |
1997 |
| Report Number |
EPA/600/A-97/033; |
| Stock Number |
PB97-193718 |
| Additional Subjects |
Ozone ;
Meteorological parameters ;
Cluster analysis ;
Ecological concentration ;
Photochemical reactions ;
Atmospheric circulation ;
Fronts(Meteorology) ;
Meteorological data ;
Data sets ;
Diurnal variations ;
Statistical analysis ;
Houston(Texas) ;
Average linkage ;
K means
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB97-193718 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
16p |
| Abstract |
This paper compares the results from both a one-stage hierarchical clustering technique (average linkage) and a two-stage technique (average linkage then k-means) as part of an objective meteorological classification scheme designed to better elucidate ozone's dependence on meteorology in the Houston, Texas area. When applied to twelve years of meteorological data (1981-1992), each technique identified seven statistically distinct meteorological regimes, the majority of which exhibited significantly different daily 1-hour maximum ozone (O3) concentrations. While both clustering approaches proved successful, the two-stage approach did appear superior in terms of better segregation of the mean O3 concentrations. |
| Supplementary Notes |
See also PB95-155172. Prepared in cooperation with National Inst. for Statistical Sciences, Research Triangle Park, NC. and North Carolina State Univ. at Raleigh. Sponsored by Environmental Protection Agency, Research Triangle Park, NC. National Exposure Research Lab. |
| Availability Notes |
Product reproduced from digital image. Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)321-8547; and email at orders@ntis.fedworld.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA. |
| Category Codes |
68A; 55E; 55A |
| NTIS Prices |
PC A03/MF A01 |
| Primary Description |
600/09 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
731601220 |
| Origin |
NTIS |
| Type |
CAT |
