Draft
November 24, 1998
Global Distribution of Continental Haziness
Rudolf B. Husar, Janja D. Husar and Laurent Martin
Center for Air Pollution Impact and Trend Analysis
Washington University
One Brookings Drive
St. Louis, MO 63130-4899
rhusar@mecf.wustl.edu, jhusar@mecf.wustl.edu, lmartin@mesun4.wustl.edu
INTRODUCTION DATA AND METHODOLOGY Surface Visibility Observations Visual Range: Definition and Measurement Haze from Visibility Observations Data Sources and Processing Spatial Distribution of Qualified Stations Interpolation, Gridding and ContouringGLOBAL AEROSOL PATTERN Global Environmental Factors Topographic Features Weather and Climate Features Natural Processes and Emissions Population Human Activities and Emissions Surface Visibility Observations Data Quantity and Quality Spatial Pattern Temporal Pattern
REGIONAL AEROSOL PATTERN
REFERENCES