1.TYPHOON AND RAINSTORM EARLY WARNING AND ASSESSING SYSTEM PUT IN REAL-TIME TRIAL OPERATION
TYPHOON AND RAINSTORM EARLY WARNING AND ASSESSING SYSTEM PUT IN REAL－TIME TRIAL OPERATION
2.In this paper, three types of frequency distribution , Pearson type Ⅲ, Gumbel distribution and exponential distribution, which are often used to fit the urban rainstorm intensity formula are discussed and the statistical characteristics of exponential distribution is analyzed emphatically. The Pearson type Ⅲ distribution is selected to be the urban rainstorm probability distribution by statistical significance test with the observed urban short-duration rainstorm data from 65 observatories in Fujian Province.
本项目首先对城市短历时暴雨常用的三种频率分布线型:皮尔逊Ⅲ型分布、耿贝尔分布和指数分布进行论述,着重对指数分布的统计特性进行分析,然后根据对福建省65座城镇的自记雨量记录分析,利用假设检验的理论和方法,确定出福建省暴雨频率分布线型为P-Ⅲ型分布;
3.Based on 26 year self recording rainfall observation data from Fleissner Weather Station in Austria, by way of the analytical method of rainstorm frequency, the rainstorm amount with rainfall duration from 5 min to 24 h and recurrence period from 0.5 year to 100 year were calculated, the relationship between designed rainstorm amount and rainfall duration or recurrence period was also established in Graden Watershed.
根据奥地利伏拉斯勒（Fleissner）气象站26a的自记降雨观测资料，应用暴雨频率分析方法，计算了格拉顿（Graden）小流域降雨历时从5min至24h及重现期从0．5a至100a的暴雨量，得到了格拉顿流域设计暴雨量与降水历时和重现期的关系。
4.By using the precipitation data of 34 years for statistic and to analyse the rainstorm areas from April to September in Anhui Province,the result shows that rainstorm of Anhui centralizes on June and July,and flood season rainfall as well as the trend of drought and waterlog depend basically on the amount and range of rainstorm.
用34 a的降水资料对安徽省4—9月暴雨落区进行了统计分析,结果表明安徽暴雨主要集中在6月到7月,暴雨日数多寡和暴雨范围大小,基本决定了汛期降水多少和旱涝趋势。
5.The persistent heavy rainstorm processes occurred usually in the descending periods of the Ural Blocking High in mid-high latitude at 500hPa, and the Western Pacificsubtropical High intensification and the changes of its northern boundary have an important impact on producing and persisting of heavy rainstorm;
淮河流域持续性暴雨的发生与乌拉尔山500hPa高度场上的阻塞高压由强减弱至崩溃密切相关，而西太平洋副高的强度和北界位置也是影响淮河流域暴雨量的关键因素；
6.By analyzing the characteristic precipitation , synoptic situation, water vapor condition of the three time rainstorm lasted for over three days during 6/23-7/15 in 2000,it is shown that the two main circulation and water vapor condition which is in favor of the accrue of during rainstorm.
通过对 2 0 0 0年 6月 2 3日～ 7月 15日河南省出现的 3次连续 3天以上的暴雨、大暴雨过程的降水特征、背景形势、影响系统和水汽条件等方面的分析 ,揭示了有利于连续性暴雨产生的水汽条件和两种环流背景场。
7.A Rainstorm Black Warning was issued on July 1 and Rainstorm Red Warnings were required on the first three days of the month.
天文台在七月一日发出了黑色暴雨警告；而红色暴雨警告则在七月首三天均有发出。
8.A physical courses of heavy rain in the northeast of Fujian Province caused by typhoon "Aere"(No.0418) is simulated using the PSU/NCAR model MM5.It is found that moisture and strong ascending motion produced typhoon rainstorm directly and the rainstorm has a close relation to vorticity,divergence at 850hPa.
本文利用中尺度MM5模式模拟了0418号“艾利”台风造成闽东北强降水的一次物理过程. 模拟结果表明:充沛的水汽和强烈的上升运动是造成台风暴雨的直接原因,降水与850hPa涡度场、散度场有较好的对应关系.
9.There is silence after a rainstorm, and before a rainstorm, and these are not the same.
有暴风雨前的寂静以及暴风雨后的寂静，这两者也不尽相同。
10.A brief rainstorm accompanied by thunder and lightning.
雷阵雨伴有雷声和闪电的短促暴雨
