A geographic information system (GIS) based modeling support system for air quality analysis.

• Other Authors: Choi, Shu Keung.
• Format: Others
• Language: English
• Published: Chinese University of Hong Kong 1996
• Subjects: Air > Analysis; Air quality > Data processing; Air quality; Air quality > China > Hong Kong; Geographic information systems; Geographic information systems > China > Hong Kong
• Online Access: http://library.cuhk.edu.hk/record=b5888922; http://repository.lib.cuhk.edu.hk/en/item/cuhk-321548

by Shu Keung Choi. === Thesis (M.Phil.)--Chinese University of Hong Kong, 1996. === Includes bibliographical references (leaves 145-150). === ABSTRACT --- p.i === ACKNOWLEDGMENTS --- p.iii === TABLE OF CONTENTS --- p.iv === LIST OF FIGURES --- p.ix === LIST OF PLATES --- p.xi === LIST OF TABLES --- p.xii === Chapter CHAPTER 1. --- INTRODUCTION --- p.1 === Chapter 1.1 --- Concerns on Current Air Quality Modeling Process --- p.2 === Chapter 1.2 --- Objective --- p.2 === Chapter 1.3 --- Rationale --- p.4 === Chapter 1.4 --- System Overview --- p.4 === Chapter 1.5 --- Questions --- p.6 === Chapter 1.6 --- Thesis Organization --- p.6 === Chapter CHAPTER 2. --- LITERATURE REVIEW --- p.8 === Chapter 2.1 --- Introduction --- p.8 === Chapter 2.2 --- Geographic Information System --- p.8 === Chapter 2.2.1 --- Data Assimilation --- p.9 === Chapter 2.2.1.1 --- Data Representation --- p.9 === Chapter 2.2.1.2 --- Data Format --- p.10 === Chapter 2.2.1.3 --- Data Alignment --- p.11 === Chapter 2.2.2 --- Modeling Support --- p.11 === Chapter 2.3 --- Environmental Modeling --- p.12 === Chapter 2.4 --- Integration of GIS and Environmental Modeling --- p.15 === Chapter 2.4.1 --- The Need for Integration --- p.15 === Chapter 2.4.2 --- Forms of Integration --- p.17 === Chapter 2.5 --- Air Quality Modeling --- p.20 === Chapter 2.5.1 --- Classes of Models --- p.21 === Chapter 2.5.1.1 --- Classification by Spatial Scale --- p.21 === Chapter 2.5.1.2 --- Classification by Modeling Approach --- p.22 === Chapter 2.6 --- Gaussian Plume Models --- p.24 === Chapter 2.6.1 --- Formulation --- p.24 === Chapter 2.6.2 --- Determination of σy and σz --- p.25 === Chapter 2.6.3 --- The Stability Classification --- p.26 === Chapter 2.6.4 --- Estimation of σy and σz --- p.27 === Chapter 2.6.5 --- Assumptions in the Gaussian Model --- p.30 === Chapter 2.7 --- Air Quality Model Evaluation --- p.31 === Chapter 2.7.1 --- Model Uncertainties --- p.31 === Chapter 2.7.1.1 --- Inherent Uncertainty --- p.31 === Chapter 2.7.1.2 --- Reducible Uncertainty Errors --- p.33 === Chapter 2.7.1.2.1 --- Meteorological Data Errors --- p.33 === Chapter 2.7.1.2.2 --- Emission Data Errors --- p.34 === Chapter 2.7.1.2.3 --- Model Errors --- p.34 === Chapter 2.7.2 --- Operational Performance Evaluation --- p.36 === Chapter 2.7.2.1 --- Woods Hole Performance Measures --- p.36 === Chapter 2.7.2.2 --- Fractional Bias and Fractional Scatter --- p.38 === Chapter 2.7.2.3 --- Measuring the Normalized Ratios --- p.39 === Chapter 2.7.2.4 --- Combination of Statistical Measures --- p.40 === Chapter 2.8 --- Visualization --- p.43 === Chapter 2.8.1 --- Visualization Software Framework --- p.43 === Chapter 2.8.2 --- GIS and Visualization --- p.46 === Chapter 2.9 --- Conclusion --- p.47 === Chapter CHAPTER 3. --- SYSTEM DESIGN --- p.48 === Chapter 3.1 --- System Overview --- p.48 === Chapter 3.2 --- Supported Models --- p.50 === Chapter 3.3 --- System Software Platforms --- p.51 === Chapter 3.3.1 --- ARC/INFO --- p.52 === Chapter 3.3.1.1 --- Overview --- p.52 === Chapter 3.3.1.2 --- The Role in the System --- p.53 === Chapter 3.3.2 --- Advanced Visualization System (AVS) --- p.54 === Chapter 3.3.2.1 --- Overview --- p.54 === Chapter 3.3.2.2 --- The Role in the System --- p.54 === Chapter 3.4 --- System Requirements and Specification --- p.56 === Chapter 3.4.1 --- Notation --- p.56 === Chapter 3.4.2 --- Data Preprocessing --- p.57 === Chapter 3.4.3 --- Data Postprocessing --- p.63 === Chapter 3.4.4 --- Model Performance Evaluation --- p.68 === Chapter 3.4.5 --- Visualization --- p.74 === Chapter 3.4.5.1 --- Reading ARC/INFO Data --- p.74 === Chapter 3.4.5.2 --- Applying Visualization Techniques --- p.77 === Chapter 3.4.5.2.1 --- Surface Mesh --- p.77 === Chapter 3.4.5.2.2 --- Multi-window Approach --- p.79 === Chapter 3.5 --- Data File Format --- p.85 === Chapter CHAPTER 4. --- A TEST CASE --- p.92 === Chapter 4.1 --- Introduction --- p.92 === Chapter 4.2 --- Test Case Components --- p.92 === Chapter 4.2.1 --- Study Area --- p.92 === Chapter 4.2.2 --- Source Data --- p.93 === Chapter 4.2.3 --- Air Quality Model - MPTER --- p.93 === Chapter 4.2.4 --- Meteorological Data Preprocessor - RAMMET --- p.95 === Chapter 4.3 --- Executing the Test Case --- p.95 === Chapter 4.3.1 --- Main Menu --- p.95 === Chapter 4.3.2 --- Viewing the study area --- p.96 === Chapter 4.3.3 --- Data Preprocessing --- p.96 === Chapter 4.3.3.1 --- Define Data Mapper --- p.98 === Chapter 4.3.3.2 --- Execute Data Preprocessor --- p.101 === Chapter 4.3.3.3 --- Meteorological Data Preprocessing --- p.102 === Chapter 4.3.3.4 --- Model Input File Editing --- p.103 === Chapter 4.3.3.5 --- Discussions --- p.105 === Chapter 4.3.4 --- Model Execution --- p.107 === Chapter 4.3.5 --- Data Postprocessing --- p.107 === Chapter 4.3.5.1 --- Import Model Result to GIS --- p.108 === Chapter 4.3.5.2 --- Iso-line of Concentration Map --- p.108 === Chapter 4.3.5.3 --- Discussions --- p.109 === Chapter 4.3.6 --- Model Performance Evaluation --- p.112 === Chapter 4.3.6.1 --- Program Execution --- p.113 === Chapter 4.3.6.2 --- Discussions --- p.113 === Chapter 4.3.7 --- Visualization --- p.116 === Chapter 4.3.7.1 --- Surface Mesh --- p.116 === Chapter 4.3.7.2 --- Multi-window Approach for 4D Data set --- p.117 === Chapter 4.3.7.2.1 --- Overview --- p.117 === Chapter 4.3.7.2.2 --- Overall Controls and Relations between Viewers --- p.121 === Chapter 4.3.7.2.3 --- Independent Controls within Each Viewers --- p.122 === Chapter 4.3.7.2.4 --- "The x,y,z-volume Viewer" --- p.123 === Chapter 4.3.7.2.5 --- "x,y,t-volume in ViewerZ" --- p.128 === Chapter 4.3.7.2.6 --- Other Viewers --- p.132 === Chapter 4.3.7.3 --- Discussions --- p.134 === Chapter 4.4 --- Conclusion --- p.137 === Chapter CHAPTER 5. --- CONCLUSION --- p.138 === Chapter 5.1 --- System Design Summary --- p.138 === Chapter 5.2 --- Summary of the Functions --- p.139 === Chapter 5.2.1 --- Data Preprocessing --- p.139 === Chapter 5.2.2 --- Data Postprocessing --- p.140 === Chapter 5.2.3 --- Model Evaluation --- p.140 === Chapter 5.2.4 --- Visualization --- p.141 === Chapter 5.3 --- Further Research --- p.143 === BIBLIOGRAPHY --- p.145