A modelling system for predicting urban air pollution:: model description and applications in the Helsinki metropolitan area

被引：83
|
作者：
Karppinen, A
Kukkonen, J
Elolähde, T
Konttinen, M
Koskentalo, T
Rantakrans, E
机构：
[1] Finnish Meteorol Inst, Helsinki 00810, Finland
[2] Helsinki Metropolitan Area Council, Helsinki 00520, Finland
来源：
ATMOSPHERIC ENVIRONMENT | 2000年 / 34卷 / 22期
关键词：
model; urban; air pollution; nitrogen oxides; chemical transformation;
D O I：
10.1016/S1352-2310(00)00074-1
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
We have developed a modelling system for evaluating the traffic volumes, emissions from stationary and vehicular sources, and atmospheric dispersion of pollution in an urban area. The dispersion modelling is based on combined application of the urban dispersion modelling system (UDM-FMI) and the road network dispersion model (CAR-FMI). The system includes also a meteorological pre-processing model and a statistical and graphical analysis of the computed time series of concentrations. The modelling system contains a method, which allows for the chemical interaction of pollutants, originating from a large number of urban sources. This paper presents an overview of the modelling system and its application for estimating the NOx and NO2 concentrations in the Helsinki metropolitan area in 1993. A companion paper addresses comparison of model predictions with the results of an urban measurement network. This modelling system is an important regulatory assessment tool for the national environmental authorities. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：3723 / 3733
页数：11
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