Influence of hail suppression on the hail trend in Vojvodina, Serbia

Abstract

The influence of hail suppression by silver iodide seeding on the trend in the number of hail days (the hail trend) in Vojvodina was studied in two cases; (1) from 1967 to 2002 when there was no hail suppression and (2) from 2003 to 2010 when hail suppression existed on the whole territory. The hail trend in Vojvodina was calculated on the basis of all observed data from all synoptic and climatological stations in the period 1967 to 2010. Previous two cases show that the hail trend was increasing when there was hail suppression. Obtained results are not in accordance with the expectation that hail suppression decreases hail in Vojvodina.

Keywords

• hail
• hail suppression
• synoptic stations
• climatological stations
• mean number of days with hail
• hail trend