The Climate Statistic Features of Fushan Thunderstorm in Recent 33 Years

By using the observational data of thunderstorm in Yantai Fushan District during 1980- 2010,the evolution and the climatic characteristics of the thunderstorms were studied by means of mathematical statistics.The results showed that the interannual thunderstorm variability is great,every 2- 3 years is a cycle fluctuations,the rate of annual thunderstorm is decreasing of 1.103 day per decade.The obvious seasonal variation of thunderstorm can also be detected,and the thunderstorms are getting more and more,from winter to summer.Initial(final) days of thunderstorm distribution are more fragmented.The initial day of thunderstorm ahead of time obviously,and the final days of thunderstorm over the years are more and more late.The high correlation between thunderstorm,temperature and precipitation in Fushan,showed that the characteristics of thunderstorm is a better indicator in combating climate change.