Methods for mesoscale modeling for materials damage assessment. User's guide. Interim report, November 1984-October 1985
Assessment of acid deposition damage to materials requires as a minimum detailed knowledge of SO/sub 2/ (gas) and wet H/sup 1/ annual deposition fields on time and space scales consistent with the mechanisms of damage and the distribution of materials at risk. Methods for urban-air-quality SO/sub 2/ modeling are reviewed, and a set of simplified algorithms is presented suitable for relatively rapid assessment of a large number of cities. The method is relatively meteorology free in that regional wind roses were incorporated into the parameterization rather than the use of site-specific wind roses. Separate algorithms are presented for point and for area sources, and the mode is designed to produce annual average concentration estimates over 5-km grids. The Parameterized Air Quality Model-Annual (PAQMAN), is designed to mimic the performance of the Climatological Dispersion Model (CDM). McElroy-Pooler dispersion coefficients are used for point sources, with Briggs plume rise, and Pasquill-Gifford dispersion coefficients are used for area sources. PAQMAN results correlated well with CDM calculations for the New Haven-Pittsburgh Metropolitan Statistical Areas (MSAs) with correlation coefficients of 0.99 and 0.80, respectively. Comparisons between PAQMAN and measured concentrations averaged over each MSA were also favorable over the entire spectrum of 112 MSAs.
- Research Organization:
- Brookhaven National Lab., Upton, NY (USA)
- OSTI ID:
- 5946576
- Report Number(s):
- PB-86-144862/XAB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360000 -- Materials
500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ACID RAIN
AIR POLLUTION
AIR QUALITY
ATMOSPHERIC PRECIPITATIONS
CHALCOGENIDES
CHARGED PARTICLES
CHEMICAL REACTIONS
CORROSION
CORROSIVE EFFECTS
DAMAGE
ENVIRONMENTAL QUALITY
HYDROGEN IONS
IONS
MATERIALS
MATHEMATICAL MODELS
OXIDES
OXYGEN COMPOUNDS
PLUMES
POINT SOURCES
POLLUTION
RADIATION SOURCES
RAIN
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
URBAN AREAS