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Quality Control Algorithm of Rainfall Radar Image for Uncertainty of Rainfall

강우의 불확실성에 관한 강우레이더 영상 품질관리 알고리즘

  • Choi, Jeongho (Dept. of Mechatronics Engineering, Chosun College of Science & Technology) ;
  • Yoo, Chulsang (Dept. of Civil, Environmental and Architectural Engineering, Korea University) ;
  • Lim, Sanghun (Dept. of Hydro Science and Engineering Research Institute., Korea Institute) ;
  • Han, Myoungsun (Dept. of Hydro Science and Engineering Research Institute., Korea Institute) ;
  • Lee, Baekyu (Dept. of Mechatronics Engineering, Chosun College of Science & Technology)
  • Received : 2017.11.05
  • Accepted : 2017.11.16
  • Published : 2017.12.31
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Abstract

The paper aims to analyze structure of I/Q data observed from radar and reliably estimate rainfall through quality control of I/Q data that can quantify uncertainty of I/Q data occurring due to resultant errors. Radar rainfall data have strong uncertainty due to various factors influencing quality. In order to reduce this uncertainty, previously enumerated errors in quality need to be eliminated. However, errors cannot be completely eliminated in some cases as seen in random errors, so uncertainty is necessarily involved in radar rainfall data. Multi-Lag Method, one of I/Q data quality control methods, was applied to estimate precipitation with regard to I/Q data of rainfall radar in Mt. Sobaek.

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