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A systematic hailpad calibration procedure for operational hail suppression in Greece

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Summary

Hailpads are used to provide quantitative hailfall measurements in several hail experiments and hail suppression operations around the world. The dented hailpads record the time-integrated size distribution and concentration of hailfall. In the five-year Greek National Hail Suppression Program (GNHSP) hailpad data have been used to estimate the global (impact) energy of hailswaths for the evaluation of the GNHSP.

In this paper a systematic hailpad calibration procedure is developed applicable to operational programs. To meet this objective a calibration experiment has been conducted consisting of several tests to: consider differences between pad types; to examine the effects of ultra violet-light on hailpads for varying periods of time; to investigate the effect of painting and inking of the hailpad surfaces; to consider the effect of analyst's variability, loose hailpad stands, and bouneing; and to develop calibration eqqations. The concluded results seem to justify the design and performance of the hailpad calibration procedure.

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Author notes

  1. N. R. Dalezios

    Present address: Envirotech Ltd, 132 Olympou Street, GR-54635, Thessaloniki, Greece

  2. M. V. Sioutas

    Present address: Thessaloniki International Airport, Greek Agricultural Insurance Organization (ELGA), GR-55103, Thessaloniki

  3. T. S. Karacostas

    Present address: Department of Meteorology and Climatology, Aristotelian University of Thessaloniki, GR-54006, Thessaloniki, Greece

Authors and Affiliations

  1. Envirotech Ltd, 132 Olympou Street, GR-54635, Thessaloniki, Greece

    M. V. Sioutas & T. S. Karacostas

Authors
  1. N. R. Dalezios
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  2. M. V. Sioutas
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  3. T. S. Karacostas
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Dalezios, N.R., Sioutas, M.V. & Karacostas, T.S. A systematic hailpad calibration procedure for operational hail suppression in Greece. Meteorl. Atmos. Phys. 45, 101–111 (1991). https://doi.org/10.1007/BF01027478

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  • DOI: https://doi.org/10.1007/BF01027478

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