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

Using the data of typhoons influencing Zhejiang from 2004 to 2013 and the corresponding winds of 9 coastal meteorological stations, the characteristics of gust ratio and its relationship with the latitude, altitude, and distance from coast to stations are analyzed. The results show that with the increasing of average wind, the gust ratio has decreasing tendency. The gust ratios of stations with less distance away from coast or less altitude are relatively larger. The relationship between typhoon parameters and gust ratio is analyzed. The ratio of the radius of grade7 wind circle to the distance of the station from typhoon center is well correlated with gust ratio. Based on the quantile regression, the probability forecast models are developed. The forecast tests show that the hit rates of 50% and 90% are obtained for most stations, and its variation is generally within a range of 3%.