午夜欧美大片免费观看,欧美激情综合五月色丁香,亚洲日本在线视频观看,午夜精品福利在线

The lightning frequency, polarity, intensity and other parameters in each unit from 24 August, 2005 to 22 September 2008 are gained, with the range of 1 km2(1 km × 1 km) being the basic unit， for the whole area of the Huangshan Scenic Area (118.05°E to 118.13°E,30.06°N to 30.09°N). At the same time, the influences of geological features and the lightning environment and geographical environment of the Huangshan scenic area on lightning activities are analyzed. Research shows that in the mountainous areas, the lightning frequency also increases with increasing altitude, while the average lightning current intensity decreases.