In 1969 the North Atlantic Treaty Organization (NATO) established the Committee on Challenges of Modern Society (CCMS). The subject of air pollution was from the start one of the priority problems under study within the framework of various pilot studies undertaken by this Committee. The organization of a yearly conference dealing with air pollution modeling and its application has become one of the main activities within the pilot study relating to air pollution. The international conference was organized for the first five years by the United States and for the second five years by the Federal Republic of Germany. Belgium, represented by the Prime Minister's Office for Science policy, became responsible in 1980 for organizing the third five years of the annual conference. This volume contains the papers presented at the 15th NATO/CCMS International Technical Meeting (ITM) on Air Pollution Modeling and Its Application, held in St. Louis, Missouri, from the 15th to 19th April 1985. This ITM was jointly organized by the Prime Minister's Office for Science Policy, Belgium (Pilot Country); by the Environmental Protection Agency, Atmospheric Sciences Research Laboratory, United States (Host Country); and by Washington University, Mechanical Engineering Department (Host Organization).

Inhalt

Role of Atmospheric Models in Air Pollution Policy and Abatement Strategies.- Evaluating strategies for controlling acidification in Europe with a regional scale air quality model.- The feasibility and effectiveness of summer season or episodic SO2 emission controls to reduce acidic deposition in eastern North America.- Climatological variability in the evaluation of cost effectiveness of emission control strategies to reduce acid deposition.- Regional oxidant modeling of the Northeast US.- Technical uncertainty in quantitative policy analysis - A sulfur air pollution example.- The determination of air pollution abatement in Milan urban area.- Critical Air Quality or Worst-Case Meteorological Scenarios.- Meteorological events that produced the highest ground-level concentrations during complex terrain/field experiments.- Avacta II model simulations of worst-case air pollution scenarios in Northern Italy.- On-line wind field calculations for routine and emergency response applications.- Report on the study to evaluate air pollution episodes and intermittent control measure.- Planetary Boundary Layer and Turbulence Parameterization in Atmospheric Dispersion Models.- Parameterization of the atmospheric boundary layer for air pollution dispersion models.- Atmospheric dispersion modeling based upon boundary layer parameterization.- Modeling the diurnal variation of meteorological variables within the boundary layer - Preliminary comparison results «.- Statistical models of atmospheric dispersion.- Use of meteorological data to parameterize statistical dispersion models.- Atmospheric diffusion in the range 20 to 2000 Kilometers.- Short range dispersion within a system of regular valleys.- Determination of the relations governing the evolution of the standard deviations of the distribution of pollution.- Modeling of turbulence in stable layers and forecasting of pollution episodes.- Formation and Transport of Ozone and Aerosols in the Polluted Atmosphere.- An examination of the transport of ozone and its precursors in rural areas of the Eastern United States.- The transport of reactive pollutants within local circulations.- Modeling sulfur air quality and deposition in pristine areas.- Technical considerations in regional aerosol modeling.- First results of the data processing of the VIth European campaign on remote-sensing of air pollution.- A wind-field model for interpretation of remote-sensing data in a complex area.- Performance Evaluation of Atmospheric Dispersion/Transformation/Removal Models.- Expectations and experience in diffusion model validation.- Issues, design and interpretation of performance evaluations: ensuring the emperor has clothes.- Assessing the performance level of air quality models.- Simple statistical methods for comparative evaluation of air quality models.- The Danish gaussian air pollution model (OML): description, test and sensitivity analysis in view of regulatory applications.- Regional air quality model assessment and evaluation.- The use of acid deposition models in designing long-range tracer experiments.- The episodicity of statistical long range transport models.- South central coast cooperative aerometric monitoring program - An integrated atmospheric pollutant monitoring program for California outer continental shelf (OCS).- Application of linked three-dimensional PBL and dispersion models to New-York city.- A reentry plume fumigation model in a lakeshore environment.- Atmospheric dispersion around an isolated hill - Programme and preliminary results.- Initialization of the euler model "modis" with field data from the "epri plume model validation project".- Concentration statistics by wind direction for 1976 St Louis SO2 measurements and model estimates.- Field experiments with tracer and tetroons to investigate atmospheric dispersion in the mesoscale range.- Dispersion Modeling of Hazardous Materials and Toxic Pollutants.- Dispersion modeling of hazardous materials in the wind tunnel.- Heavy gas dispersion modelling.- Physical and mathematical modelling of heavy gas dispersion - Accuracy and reliability.- Evaluation of Source strength and dispersion model predictions with data from large nitrogen tetroxide field experiments.- Comparison between data from the heavy gas dispersion experiments at thorney island and predictions of simple models.- A study of heavy gas effects on the atmospheric dispersion of dense gases.- A three-dimensional numerical model for the dispersion of heavy gases over complex terrain.- Participants.- Author's Index.