The feasibility of cloud seeding in Korea is presented from analyses of precipitation, cloud amount, satellite data, and upper air data. The daily mean precipitation over Dae-Kwan-Ryong is the largest(~4.5 mm/day), while the intensity of precipitation (amount of yearly rainfall divided by the frequency of rain days) over Southern area is above 14 mm/day, which shows the largest in Korea. Both the daily mean and the intensity of precipitation over Andong area are the smallest with values of ~2.7 mm/day and ~11 mm/day, respectively. In the meanwhile, the occurrence frequency of appropriate cloud top temperature (-10'~-30') for cloud seeding over the region has a large value (~130 days/year). The precipitation patterns of the region vary with wind direction and intensity calculated from 43 AWSs(Automatic Weather Station) and the additional 7 rain guages which were installed along Northern and Southern part of the Sobaek mountain. The Sc(Stratocumulus) cloud type over Andong is frequently observed, and Cirrus and Altostratus next. From the results, it is estimated that the feasibility of cloud seeding over the area would be high if a proper strategy of cloud seeding is set up. LCL (Lifting Condensation Level) and CCL (Convective Condensation Level) have the most frequency in 1000-950 hPa being occupied 4/9 of total analysis period and in 400-500 hPa, respectively, with both small variations from season to season. The correlation between vapor mixing ratio and CCL is the highest in Summer and the lowest in Winter. It means that the height of cumulus in Summer is high with an abundant water vapor but vice versa in Winter, and that the strategy of cloud seeding should be different with seasons.
한반도에서 비씨뿌리기에 의한 인공증우 가능성을 강우량 관측자료, 운량, 위성자료 및 상층관측자료로부터 조사하였다. 안동지역의 일 강수강도는 약 2.7mm/day, 1회 강수강도는 11 mm/day로 가장 작은 값을 보였다. 그러나 인공강우에 적합한 구름(운정온도가 -10'~-30')의 출현일은 1연에 130일로서 큰 값을 나타냈다. 이 지역에서 출현 운형은 층적운(Sc)이 가장 많았고, 다음으로 권운(Cirrus)및 고층운(Altostratus)였다. 상기 결과로 이 지역에서 비씨뿌리기의 적절한 전략이 세원진다면 인공증우의 가능성은 높을 것으로 추정된다. 상승응결고도(LCL)및 대류응결고도(CCL)은 계절에 따른 변화가 적었으며, 각각 100-950 hPa 및 450-500 hPa 고도에서 가장 큰 빈도를 나타내엇다. 여름철에 적운의 고도는 높으나 많은 수증기량을 함유하고 있는 반면 겨울철은 그 반대의 현상이 나타나 계절별 비씨뿌리기 방법의 차이가 있어야 함을 보여주었다.