The Spatial-temporal Statistical Analysis of Lightning Behavior over Hainan Island

By study on lightning data in 2010~2013 from lightning location system of Hainan Power Grid Corporation, the spatial-temporal distribution of flashes on Hainan island were achieved. The results showed that Hainan thunderstorm activity was very frequent, where a high number of lightning occurred from May to September; there is a strong correlation between the lightning intensity of Hainan island and NINO3.4 index; the temporal distribution of Lightning on Hainan island has obvious "twin peaks" characteristics, as well as daily flashes; the large flash density of Hainan island mainly appeared in the mountainous areas in the northeast, and most centered on windward area. Keywords-power grid; lightning; parameters