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Comparative study of rainfall measurement by optical disdrometer, tipping-bucket rain gauge, and weighing precipitation gauge

Author

Listed:
  • Yonghun Ro

    (National Institute of Meteorological Sciences, Korea Meteorological Administration)

  • Ki-Ho Chang

    (National Institute of Meteorological Sciences, Korea Meteorological Administration)

  • Hyunjun Hwang

    (National Institute of Meteorological Sciences, Korea Meteorological Administration)

  • Minhoo Kim

    (National Institute of Meteorological Sciences, Korea Meteorological Administration)

  • Joo-Wan Cha

    (National Institute of Meteorological Sciences, Korea Meteorological Administration)

  • Chulkyu Lee

    (National Institute of Meteorological Sciences, Korea Meteorological Administration)

Abstract

In this study, the rainfall measurement characteristics of an optical particle size velocity (Parsivel) disdrometer, tipping-bucket rain gauge (TBG), and Pluvio weighing precipitation gauge (WPG) were analyzed and compared. Correlation analysis was performed between the 10-min and 1-h rainfall data observed with the Parsivel, TBG, and Pluvio from 2010 to 2019 at the Cloud Physics Observation Site which is located in northeast area of South Korea (N37.6869, E128.7586). At higher rainfall intensities, the Parsivel observed more rainfall; however, the TBG lost more rainfall during observation. The correlation between the Pluvio and Parsivel data was higher than that between the TBG and Parsivel data. Additionally, the Pluvio showed reduced loss in the rainfall observation than that by the TBG. The correlation between the Pluvio and TBG data was the highest, and the coefficient of determination increased by a maximum of 42.08% for 1-h rainfall compared to that for 10-min rainfall. Therefore, the Pluvio can generate relatively accurate rainfall data for water resource utilization.

Suggested Citation

  • Yonghun Ro & Ki-Ho Chang & Hyunjun Hwang & Minhoo Kim & Joo-Wan Cha & Chulkyu Lee, 2024. "Comparative study of rainfall measurement by optical disdrometer, tipping-bucket rain gauge, and weighing precipitation gauge," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 120(3), pages 2829-2845, February.
    • Handle: RePEc:spr:nathaz:v:120:y:2024:i:3:d:10.1007_s11069-023-06308-z
    DOI: 10.1007/s11069-023-06308-z
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