大邱地域의 微氣象要素와 亞黃醒가스 鍵度

Micrometeorological Factors and Concentration of Sulfur Dioxide in Taegu Area

This study investigated to find out the patterns of the wind direction and wind speeds influenced by concentration of sulfur dioxide in T aegu area for a year in 1988. The results were as follows : Prevailing wind by months where easterly wind from May to September and the other months were westerly and / or west-north-westerly wind Condition of calm was the most at December(8.6%). Prevailing wind by seasons were westerly and easterly wind in spring and autumn. east-north-easterly and / or west-south wind in summer. the other hand. west-south-westerly and / or west-north-westerly wind in winter. Mean concentration of sulfur dioxide (S02) at each sites were influenced by prevailing wind and location of industrial estates. Mean wind speeds by times were the highest at the before and after 4 P.M .. but the lowest at the before and after 5 A.M. Average wind velocity were highest at Spring (3.38m / sec).