湖北省2008年7月20—23日暴雨洪涝特征及灾害影响  

Characters and Effects of Rainstorm and Flood Disasters on July 20—23,2008 in Hubei Province

作　　者：陈正洪[1] 李兰[1] 刘敏[1] 向华[1] 邵末兰[2] 韦惠红[2] 毛以伟[2] 王海军[3] 

机构地区：[1]武汉区域气候中心,武汉430074 [2]武汉中心气象台,武汉430074 [3]湖北省气象信息与技术保障中心,武汉430074

出　　处：《暴雨灾害》2009年第4期345-348,共4页Torrential Rain and Disasters

基　　金：武汉区域气象中心科技发展基金重点项目(QY-Z-200807)资助

摘　　要：采用空间定位、距平百分率、历史对比、极大值推算、灾害影响分析等多种方法对2008年7月20—23日湖北省出现的一次大范围的强降水过程进行综合评估。结果表明:此次过程的强降水区主要位于湖北省北部、西部,即襄樊、恩施、宜昌、荆门、随州等地;全省76个气象台站中,共有13站过程雨量≥150.0 mm,35站次暴雨,10站次大暴雨,襄樊22日降水量达293.9 mm,为超过100年一遇的特大暴雨;强降水造成较大范围的渍涝或洪涝,其中4县市为严重洪涝,7县市为较重洪涝,12县市为一般洪涝,9县市出现了渍涝;部分河流超警戒或汛限水位;最后给出了灾害损失、城市渍涝、山洪、地质灾害和雷击事件的统计数据及暴雨对农业、交通、江河湖库水位的影响。On July 20--23, 2008 a large-scale heavy rainfall occurred in Hubei Province, which led to severe flood disaster and loss. Some methods such as spatial location, percentage of departure, historical contrast, calculation of maximum and disaster analysis were used to evaluate the rainstorm process, which will provide reference to analyze and protect the likely process in the future. The results showed that： 1）The heavy raining area covered the northern and the western of Hubei, including Xiangfan, Enshi, Yichang, Jingmen, Suizhou and so on. 2）There were thirteen stations with over-all precipitation ≥150mm, and thirty-five stations or days with heavy rain （daily rainfall ≥50 mm）, ten stations or days with torrential rain （daily rainfall ≥100mm）. In Xiangfan, the maximum daily rainfall got as high as 293.9 mm on July 22, which was rare in the recurrence period over one hundred years. 3）The heavy rainstorm process led to the flood and waterlogging disaster, and there were severe disaster in the four cities and counties, severer disaster in seven counties, general disaster in twelve counties, light disaster in nine counties, and part of rivers exceeded the limited water-level. At last, the paper gave the effect on the total loss, the urban waterlogging, agriculture, traffic, water level of rive（lake and reservoir）, geological and lightening hazard.

关 键 词：暴雨 洪涝 重现期 灾害影响 

分 类 号：P459.9[天文地球—大气科学及气象学]