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Calibration Uncertainty of Non-Catching Precipitation Gauges.

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Summary

Calibration of non-catching precipitation gauges is crucial for accurate meteorological and hydrological data. This study proposes standardized calibration procedures and uncertainty budgets, ensuring traceable measurements to primary standards.

Keywords:
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Area of Science:

  • Meteorology and Hydrology
  • Metrology and Measurement Science

Background:

  • Precipitation measurement is vital for various scientific disciplines, including meteorology, hydrology, water management, and climate studies.
  • Non-catching precipitation gauges are increasingly used in meteorological networks, but lack standardized calibration procedures and uncertainty budgets.
  • Current practices hinder the traceability of measurements to primary standards.

Purpose of the Study:

  • To propose standardized calibration procedures for non-catching precipitation gauges.
  • To develop comprehensive uncertainty budgets for these measurements.
  • To ensure the traceability of non-catching precipitation gauge data to primary metrological standards.

Main Methods:

  • Preliminary characterization of custom-developed raindrop generators.
  • Detailed characterization of various non-catching precipitation gauge models.
  • Development of metrological procedures for calibration and uncertainty assessment.

Main Results:

  • Established a methodology for characterizing raindrop generators.
  • Provided characterization data for different non-catching precipitation gauge types.
  • Proposed a framework for calibration and uncertainty evaluation.

Conclusions:

  • Standardized calibration procedures and uncertainty budgets are essential for non-catching precipitation gauges.
  • The proposed methods enhance the reliability and comparability of precipitation measurements.
  • This work contributes to improving the metrological foundation of precipitation monitoring.