Key Variables to Assess Seeding Operations on the Greek National Hail Suppression Program

Authors

  • Michalis V Sioutas ELGA Weather Modification Centre Thessaloniki, Greece
  • Randy C Rudolph Colorado International Corporation Boulder, CO

DOI:

https://doi.org/10.54782/jwm.v30i1.260

Abstract

Key variables were examined to assess the operational performance of cloud seeding using data from the 1993 Greek National Hail Suppression Program. These operational variables included: aircrew response time, controller launch time, fraction of storm complexes seeded, seeding start and end time, duration of seeding compared to duration of seeding criteria and seeding location. Seeding rates were not considered. A seeding coverage was calculated as the product of the fraction of storms seeded, the seed time and location of seeding using a 0-100% scale. GNHSP data resulted in a coverage value of about 40% (83% complexes seeded; 58% seeding when seeding criteria were met or exceeded; 84% correct location). Important improvement sat the GNHSP, such as shortening the aircraft take-off time and identifying the need for earlier launches by controllers, have resulted from the simple act of measuring the performance of seeding operations.

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Scientific Papers

How to Cite

Key Variables to Assess Seeding Operations on the Greek National Hail Suppression Program. (1998). The Journal of Weather Modification, 30(1), 22-29. https://doi.org/10.54782/jwm.v30i1.260