Distributions of lightning parameters relate with geographical and atmospheric conditions. To analyze the effects of the relevant geographical and atmospheric factors on the distributions of the lightning parameters

this paper uses the data from the Guangdong Province lightning location system to sample representative regions by means of the software Google Earth. Each sampled region is treated and then input to Arc Map for screening analysis of lightning parameters. The projection function of Arc Map is adopted according to the standard UTM to obtain the area of the region

thereby to obtain lightning density. The lightning parameters of different terrains and geographies are analyzed statistically

and the results show that the lightning density is larger in mountainous terrain than in plain

and the lightning density in city is larger than that in rural area. The monthly statistics of the lightning parameters show a clear seasonal distribution

in which 67.3% of lightning falls in the summer. The statistics for the past five years indicate that the proportion of positive polarity lightning is larger in less lightning season than in more lightning season

and the distribution of positive polarity lightning features U-shape.