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Nox diffusion-simulation in an urban area in using the vertical diffusion diagram including a surface roughness parameter

Journal Article:

Abstract

In recent years, in order to attain a total quantity regulation of air pollution and to prepare a local air-control program, a diffusion simulation is often made using a Gaussian plume model. NOx diffusion simulation of the urban area was carried out using a vertical diffusion width by taking a parameter of ground-surface roughness using Smith's correction to the Gaussian model. For the diffusion of car exhaust gas, comparison was made for the estimate and the measurement by jointly using the values of ground-surface roughness and the initial diffusion width. As a result, change in the diffusion width of the car exhaust gas due to the urban buildings was expressed at a necessary practical level by giving the height of the point of calculation, 1 - 3 m in the central part and 30 cm at the peripheral part, and giving the initial diffusion width of roughly half to equal size of initial diffusion width to the average height of the buildings. (2 figs, 8 tabs, 20 refs)
Publication Date:
Mar 31, 1988
Product Type:
Journal Article
Reference Number:
NEDO-88-910522; EDB-88-171772
Resource Relation:
Journal Name: Tenki (Tokyo); (Japan); Journal Volume: 35:3
Subject:
54 ENVIRONMENTAL SCIENCES; DIFFUSION; MATHEMATICAL MODELS; INTERNAL COMBUSTION ENGINES; EXHAUST GASES; PARAMETRIC ANALYSIS; NITROGEN OXIDES; ECOLOGICAL CONCENTRATION; URBAN AREAS; CHALCOGENIDES; ENGINES; FLUIDS; GASEOUS WASTES; GASES; HEAT ENGINES; NITROGEN COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; WASTES; 500100* - Environment, Atmospheric- Basic Studies- (-1989)
OSTI ID:
6927005
Research Organizations:
Enviromental Pollution Control Center of Osaka Prefectural Covernment, Osaka, Japan
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Journal ID: CODEN: TENKB
Submitting Site:
NEDO
Size:
Pages: 57-65
Announcement Date:

Journal Article:

Citation Formats

Kono, Hitoshi, Fujimoto, Akira, and Nakano, Hiroshi. Nox diffusion-simulation in an urban area in using the vertical diffusion diagram including a surface roughness parameter. Japan: N. p., 1988. Web.
Kono, Hitoshi, Fujimoto, Akira, & Nakano, Hiroshi. Nox diffusion-simulation in an urban area in using the vertical diffusion diagram including a surface roughness parameter. Japan.
Kono, Hitoshi, Fujimoto, Akira, and Nakano, Hiroshi. 1988. "Nox diffusion-simulation in an urban area in using the vertical diffusion diagram including a surface roughness parameter." Japan.
@misc{etde_6927005,
title = {Nox diffusion-simulation in an urban area in using the vertical diffusion diagram including a surface roughness parameter}
author = {Kono, Hitoshi, Fujimoto, Akira, and Nakano, Hiroshi}
abstractNote = {In recent years, in order to attain a total quantity regulation of air pollution and to prepare a local air-control program, a diffusion simulation is often made using a Gaussian plume model. NOx diffusion simulation of the urban area was carried out using a vertical diffusion width by taking a parameter of ground-surface roughness using Smith's correction to the Gaussian model. For the diffusion of car exhaust gas, comparison was made for the estimate and the measurement by jointly using the values of ground-surface roughness and the initial diffusion width. As a result, change in the diffusion width of the car exhaust gas due to the urban buildings was expressed at a necessary practical level by giving the height of the point of calculation, 1 - 3 m in the central part and 30 cm at the peripheral part, and giving the initial diffusion width of roughly half to equal size of initial diffusion width to the average height of the buildings. (2 figs, 8 tabs, 20 refs)}
journal = {Tenki (Tokyo); (Japan)}
volume = {35:3}
journal type = {AC}
place = {Japan}
year = {1988}
month = {Mar}
}