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Korean Meteorological Society (한국기상학회)
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Analysis of Results and Techniques about Precipitation Enhancement by Aircraft Seeding in Korea

항공기를 이용한 인공증우(설) 기술과 결과분석

  • Cha, Joo Wan (Applied Meteorological Research Division, National Institute of Meteorological Science) ;
  • Jung, Wooseon (Applied Meteorological Research Division, National Institute of Meteorological Science) ;
  • Chae, Sanghee (Applied Meteorological Research Division, National Institute of Meteorological Science) ;
  • Ko, A-Reum (Applied Meteorological Research Division, National Institute of Meteorological Science) ;
  • Ro, Yonghun (Applied Meteorological Research Division, National Institute of Meteorological Science) ;
  • Chang, Ki-Ho (Radar Planning Team, Weather Radar Center) ;
  • Seo, Seongkyu (DigiQuay) ;
  • Ha, Jong-Chul (Applied Meteorological Research Division, National Institute of Meteorological Science) ;
  • Park, Dongoh (Applied Meteorological Research Division, National Institute of Meteorological Science) ;
  • Hwang, Hyun Jun (Applied Meteorological Research Division, National Institute of Meteorological Science) ;
  • Kim, Min Hoo (Applied Meteorological Research Division, National Institute of Meteorological Science) ;
  • Kim, Kyung Eak (Applied Meteorological Research Division, National Institute of Meteorological Science) ;
  • Ku, Jung Mo (Applied Meteorological Research Division, National Institute of Meteorological Science)
  • 차주완 (기상청 국립기상과학원 응용기상연구과) ;
  • 정운선 (기상청 국립기상과학원 응용기상연구과) ;
  • 채상희 (기상청 국립기상과학원 응용기상연구과) ;
  • 고아름 (기상청 국립기상과학원 응용기상연구과) ;
  • 노용훈 (기상청 국립기상과학원 응용기상연구과) ;
  • 장기호 (기상청 기상레이더센터 레이더기획팀) ;
  • 서성규 ((주) 디지카) ;
  • 하종철 (기상청 국립기상과학원 응용기상연구과) ;
  • 박동오 (기상청 국립기상과학원 응용기상연구과) ;
  • 황현준 (기상청 국립기상과학원 응용기상연구과) ;
  • 김민후 (기상청 국립기상과학원 응용기상연구과) ;
  • 김경익 (기상청 국립기상과학원 응용기상연구과) ;
  • 구정모 (기상청 국립기상과학원 응용기상연구과)
  • Received : 2019.07.19
  • Accepted : 2019.11.17
  • Published : 2019.11.30
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Abstract

National Institute of Meteorological Sciences has conducted a total 54 cloud seeding experiments with a silver iodide and calcium chloride using aircrafts from 2008 to 2018. The goal of the experiments is to improve the techniques of precipitation enhancement in Korea. The cloud seeding experiments using the silver iodide and calcium chloride were 36 and 18 times, respectively. During the cloud seeding experiments of the silver iodide and calcium chloride, the average values of total cloud amount for two kinds of seeding materials were 9.6 for and 8.1, respectively. The cloud type with the highest occurrence was Nimbostratus (Ns)-Stratus (St) (58%) in the silver iodide cloud seeding experiment. It was Altostratus (As)-Stratocumulus (Sc) (44%) in the calcium chloride cloud seeding experiment. Compared to probability of obtaining cloud seeding effect of the experiments using a leased aircraft, the probability using an atmospheric research aircraft increased from 43% to 63% in the silver iodide cloud seeding experiment and from 29% to 75% in the calcium chloride cloud seeding experiment. However, the increasing tendency was only shown during the one year experiment (2018). To get the meaningful statistical tendency of the cloud seeding effects, it is needed to implement many experiments in several years. Further we have to more clearly understand the characteristics of clouds developing in Korea and implement the cloud seeding experiments under a variety of weather conditions in order to develop the optimized precipitation enhancement technology in Korea.

Keywords

References

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