Identification of Lightning Frequency Strength and Risk Levels of Lightning in Sweden

KDN Hewage, V Cooray, SSN Perera, SK Boralugoda, IMK Fernando

The lightning activity pattern in Sweden was evaluated using the available lightning striking data recorded by the Swedish Lightning Location System. The analysis was done for entire country and three selected zones of the country and found that annually, the highest lightning activity is taking place along the southern part (zone A) of country while the lowest activity at the northern part. Results suggests that the variation of lightning activity is cyclic with 3 -4 years period each 3 zones and the entire Sweden. Further, it was revealed that the risk of lightning strike is increasing during the last 15 years.