Review of the attributes and performance of six urban diffusion models. Final report October 1982-September 1983

Technical Report · Wed Aug 01 00:00:00 EDT 1984

OSTI ID:6150320

White, F D

The American Meteorological Society conducted a scientific review of a set of six urban diffusion models. TRC Environmental Consultants, Inc. calculated and tabulated a uniform set of statistics for all the models. The report consists of a summary and copies of the three independent model reviews conducted to evaluate the models. General conclusions included: (1) all of the six models are very similar to each other and represent simple approximations of the urban diffusion situations in a given time period with no horizontal variability of the boundary layer structure or depth; (2) none of the models can be considered state-of-the-art since a great deal has been learned about the planetary boundary layer that could be incorporated into such models; (3) the models all use an all or nothing approach to plume penetration; either the plume penetrates the elevated inversion and is lost to the computation or it is completely trapped; and (4) the four annual models all produced good estimates of the observed concentrations, while, of the short-term models, TEM-8A seriously overpredicted at night and RAM seriously underpredicts during the day.

• Research Organization: American Meteorological Society, Boston, MA
• OSTI ID: 6150320
• Report Number(s): PB-84-236850
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
AIR POLLUTION
MATHEMATICAL MODELS
DIFFUSION
EVALUATION
FIELD TESTS
METEOROLOGY
REVIEWS
SAMPLING
SULFUR DIOXIDE
URBAN AREAS
CHALCOGENIDES
DOCUMENT TYPES
OXIDES
OXYGEN COMPOUNDS
POLLUTION
SULFUR COMPOUNDS
SULFUR OXIDES
TESTING
500200* - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)