A quality evaluation criterion for radar rain-rate data

Chulsang Yoo, Jungsoo Yoon, Jungho Kim, Cheolsoon Park, Changhyun Jun

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)


This study proposed a radar rain-rate quality criterion (RRQC), a measure of goodness for the radar rain-rate. The RRQC proposed is based on the similar concept of total variance in the statistical analysis of variance, which considers both the bias and variability of radar rain-rate with respect to the raingauge rain-rate. The RRQC was estimated for three storm events with the raw radar data, along with improved versions based on G/R correction and merging by co-Kriging. Additionally, these radar data were applied to the runoff analysis of the Choongju Dam Basin, Korea. By investigating the relation between the RRQC in the rain-rate input and the errors in the runoff output, a minimum quality of radar rain-rate applicable to the rainfall-runoff analysis was explored.

Original languageEnglish
Title of host publicationIAHS-AISH Publication
Number of pages6
Publication statusPublished - 2012 Dec 1
EventInternational Symposium on Weather Radar and Hydrology, WRaH 2011 - Exeter, United Kingdom
Duration: 2011 Apr 182011 Apr 21


OtherInternational Symposium on Weather Radar and Hydrology, WRaH 2011
CountryUnited Kingdom


  • Co-Kriging
  • G/r ratio
  • Radar rain-rate
  • Rainfall-runoff analysis
  • RRQC

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)

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  • Cite this

    Yoo, C., Yoon, J., Kim, J., Park, C., & Jun, C. (2012). A quality evaluation criterion for radar rain-rate data. In IAHS-AISH Publication (Vol. 351, pp. 382-387)