Record Display for the EPA National Library Catalog


Main Title EPA (Environmental Protection Agency) Complex Terrain Model Development: Description of a Computer Data Base from Small Hill Impaction Study No. 2, Hogback Ridge, New Mexico.
Author Truppi, L. E. ;
CORP Author Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Sciences Research Lab.
Year Published 1985
Report Number EPA/600/3-86/002;
Stock Number PB86-144870
Additional Subjects Terrain models ; Air pollution ; Mathematical models ; Plumes ; Sulfur hexafluoride ; Performance evaluation ; Concentration(Composition) ; Comparison ; Information system ; Meteorology ; Tracer studies ; Air pollution sampling ; Air quality ; Hogback Ridge(New Mexico) ; Freon 13B1
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
NTIS  PB86-144870 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 99p
The second field study of EPA's Complex Terrain Model Development Program, Small Hill Impaction Study No. 2, was conducted along a 1.5-km section of the Hogback Ridge near Farmington, New Mexico in October 1982. Eleven quantative tracer experiments were performed, each lasting 8 hours at night or early morning. Meteorological data were recorded on two instrumented towers up-wind of the ridge and two towers on the slope. Data were direct and derived measures of wind, turbulence, and temperature averaged at 5-minute and 1-hour intervals. Hourly profiles of wind, temperature, pressure and humidity were recorded at one tethersonde site upwind of the ridge, while another tethersonde was held at the point of tracer release to record wind and temperature at 13-second intervals. Three sets of optical anemometers measured path-average wind speed across the base, slope and crest of the ridge. Tracer gas concentrations, SF6 and Freon 13B1, were detected by a network of 110 sampler sites on the ridge, and the values were recorded as 10-minute and 1-hour concentrations. All data, meteorological and tracer, were stored on magnetic tape files to form an accessible computer data base. Tape files were fully documented to facilitate utilization of the data base for modeling efforts.