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投稿时间：2008-07-18 修订日期：2009-07-13
投稿时间：2008-07-18 修订日期：2009-07-13
中文摘要: 湖北通山大畈核电站是我国政府批准兴建的第一个内陆地区核电站，为了保障核
电站的绝对安全性，在选址和设计阶段对飑线出现的一些基本气候特征和设计参数进行科学
评估尤其重要。通过气象站记录、灾害大典、气候影响评价等多条途径，收集了湖北通山核
电站周边80 km×80 km区域1956—2000年间的飑线资料，并据此对其时空分布和灾害特
征进行了分析，同时与龙卷风对应特征进行了比较。结果表明：(1）飑线发生频次的年代、
季（月）、一日内差异明显，且主要集中在对流强盛的时期（段），这些特征与龙卷风基本
一致；飑线平均持续时间为95 min，远比龙卷风的17 min长。(2）飑线局地性很强，其中站址
东北部和南部50 km以外的地区最多，而站址中心区的通山及邻近的崇阳没有出现，这种特
征与地理位置、地形以及系统移动路径有关。(3）飑线的移动方向以自西向东为主,即主要
集中在NNW—SSW等7个方位, 尤其是WNW、W、WSW等3个方位最多。（4）除风灾外，飑线出现时常伴有强
烈的雷电、暴雨和冰雹天气，使灾害加重。(5）与龙卷风相比，飑线风力略小，所以设计风
速取12级应当比较恰当。
中文关键词: 核电站， 飑线， 时空分布， 灾害， 龙卷风
Abstract:Dafan Nuclear Power Plant in Tongshan, Hubei is the first one situated
at the mainland permitted by the national government in China. In order to abso
lutely ensure the safety of that plant, the evaluation of the basic climatic pro
perties (including the properties of disasters) and designed parameters of the
squall lines is very important in the preceding period. Based on the primary dat
a collected from the area of 80 km×80 km around the nuclear power plant in Tong
shan, Hubei from 1956 to 2000 through many ways such as the record in meteorolog
ical stations, the collection of disaster events, and the report of climate impa
ct assessment, the characteristics of temporal and spatial distributions and disa
sters of the squall line events are analyzed and compared with that of tornado e
vents. It is revealed: (1) There is apparent temporal (daily, monthly, seasonal, d
ecadal) distribution for the squall line events that are mainly concentrated in
summer and spring especially in July, August and April, from mid day to early e
vening especially at afternoon, in the 1980s, all these are similar to that of
tornado events, but the average lasting time for all squall line events is abou
t 95 min that is longer than the average lasting time (17 min) for all tornadoes. (2)
There are very apparant local properties for all squall line events, such as Hua
ngshi at northeastern part of the plant and Xiushui at southern part of the plan
t with the most frequent events, and Tongshan and Chongyang at the central part
of the plant with no events at all in the recent 31 years, which are determined
by the local position, topography and the moving paths of synoptic systems. (3) The
moving direction is mainly concentrated from NNW to SSW, especially from WNW to
WSW. (4) Apart from storms when squall line events occur, there are strong li
ghtning and heavy rain together that will make the disasters more serious. (5) Co
mpared with tornados, there are a little bit smaller wind speeds for squall line
events, thus a wind scale of 12 is closed as the designed speed.
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基金项目:湖北省发展和改革委员会核电项目办资助
引用文本：
陈正洪,刘来林,袁业畅,2010.湖北大畈核电站周边飑线时空分布与灾害特征[J].气象,36(1):79-84.
CHEN Zhenghong,LIU Lailin,YUAN Yechang,2010.Research on Disasters and Temporal and Spatial Distribution of Squal Lines Around Dafan Nuclear Power Plant in Tongshan, Hubei[J].Meteor Mon,36(1):79-84.
陈正洪,刘来林,袁业畅,2010.湖北大畈核电站周边飑线时空分布与灾害特征[J].气象,36(1):79-84.
CHEN Zhenghong,LIU Lailin,YUAN Yechang,2010.Research on Disasters and Temporal and Spatial Distribution of Squal Lines Around Dafan Nuclear Power Plant in Tongshan, Hubei[J].Meteor Mon,36(1):79-84.