[학술논문] 북한 시정의 시공간적 특성
Temporal and spatial trends of the visibility in North Korea (NK) were studied to further understand the air quality in NK. The data from 27 observation stations in NK sent through the Global Telecommunication Service (GTS) of the World Meteorological Organization (WMO) were used. These stations are classified into five groups based on the visibility characteristics. Other parameters such as relative