Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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A Study on the Improvement in Local Gauge Correction Method

국지 우량계 보정 방법의 개선에 관한 연구

  • Kim, Kwang-Ho (Department of Environmental Atmospheric Sciences, Pukyong National University) ;
  • Kim, Min-Seong (Department of Environmental Atmospheric Sciences, Pukyong National University) ;
  • Seo, Seong-Woon (Department of Environmental Atmospheric Sciences, Pukyong National University) ;
  • Kim, Park-Sa (Geo-Sciences Institute, Pukyong National University) ;
  • Kang, Dong-Hwan (Geo-Sciences Institute, Pukyong National University) ;
  • Kwon, Byung-Hyuk (Department of Environmental Atmospheric Sciences, Pukyong National University)
  • 김광호 (부경대학교 환경대기과학과) ;
  • 김민성 (부경대학교 환경대기과학과) ;
  • 서성운 (부경대학교 환경대기과학과) ;
  • 김박사 (부경대학교 지구과학연구소) ;
  • 강동환 (부경대학교 지구과학연구소) ;
  • 권병혁 (부경대학교 환경대기과학과)
  • Received : 2015.02.10
  • Accepted : 2015.04.15
  • Published : 2015.04.30
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Abstract

Spatial distribution of precipitation has been estimated based on the local gauge correction (LGC) with a fixed inverse distance weighting (IDW), which is not optimized in taking effective radius into account depending on the radar error. We developed an algorithm, improved local gauge correction (ILGC) which eliminates outlier in radar rainrate errors and optimize distance power for IDW. ILGC was statistically examined the hourly cumulated precipitation from weather for the heavy rain events. Adjusted radar rainfall from ILGC is improved to 50% compared with unadjusted radar rainfall. The accuracy of ILGC is higher to 7% than that of LGC, which resulted from a positive effect of the optimal algorithm on the adjustment of quantitative precipitation estimation from weather radar.

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References

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