Record Display for the EPA National Library Catalog

RECORD NUMBER: 572 OF 1066

OLS Field Name OLS Field Data
Main Title LONGZ Air Diffusion Model (for Microcomputers).
CORP Author Environmental Protection Agency, Washington, DC.
Publisher 1989
Year Published 1989
Stock Number PB96-501994
Additional Subjects Models-simulation ; Software ; Atmospheric diffusion ; Diffusion modeling ; Air pollution dispersion ; Plumes ; Atmospheric transport ; Transport properties ; Meteorological data ; Wind effects ; Point sources ; Areas sources ; Air pollution sources ; Emissions ; Stack gases ; Air pollutants ; Ecological concentration ; Emission factors ; Topography ; Complex terrain ; Statistical analysis ; Diskettes ; LONGZ computer model
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB96-501994 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 08/15/1996
Collation 2 diskettes
Abstract
LONGZ is designed to calculate the long-term pollutant concentration produced at a large number of receptors by emissions from multiple stack, building, and area sources. LONGZ uses statistical wind summaries to calculate long-term (seasonal or annual) average concentrations. The model is applicable in areas of both flat and complex terrain, including areas where terrain elevations exceed stack-top elevations. The program requires random-access mass storage capability. SHORTZ is designed to calculate the short-term pollutant concentration produced at a large number of receptors by emissions from multiple stack, building, and area sources. It uses sequential short term (usually hourly) meteorological inputs to calculate concentrations for averaging times ranging from 1 hour to 1 year. The model is applicable in areas of both flat and complex terrain, including areas where terrain elevations exceed stack-top elevations. The program requires random-access mass storage capability. An associated compatible meteorological data processor is METZ.