摘要
分析"16·7"特大暴雨特征及致灾原因。"16·7"特大暴雨降雨量为河北省有气象记录以来第二多,暴雨覆盖范围刷新历史记录,日降雨量突破7月极值,降雨多集中在太行山区,且小时雨强大,持续时间长。共造成全省1 043.6万人受灾,直接经济损失约574.57亿元,从受灾行业来看,基础设施损失最为严重;从受灾区域看,中南部太行山区最重,尤以石家庄、邢台和邯郸3市最为严重。造成此次灾害的主要原因有:降雨强度大,持续时间长,山区部分地区达到百年一遇;太行山海拔落差大,地形因素导致易发山洪,是致灾的次要因素;多种灾害性天气并发,太行山区暴雨伴随强风,沿海大风引发风暴潮,加重灾害发生;不科学的人类活动,占据行洪河道,也是灾害扩大的原因之一。
The character and causes of the disaster of the“16·7”rainstorm in Hebei province were analyzed.The“16·7”torrential rainfall was the second since the meteorological record in Hebei province.The rainstorm coverage set a new record,daily precipitation exceeded the extreme value of July,precipitation concentrated in the Taihang mountains,and the rain was strong and lasted for a long time.It caused 10.436 million people was to be affected,and the direct economic loss was 57.457 billion in Hebei province.From the perspective of the affected industries,infrastructure losses was the most serious;From the disaster-stricken areas,the Taihang mountains in the south-central region were the heaviest,especially in Shijiazhuang,Xingtai and Handan.The main reasons of the disaster were:The precipitation intensity was large and lasted for a long time,and some areas in the mountainous areas reached once in a hundred years;The Taihang mountain had a large elevation difference,and topographical factors lead to flooding,which was the secondary factor for disasters;A variety of severe weather concurrency,heavy rains in the Taihang mountain were accompanied by strong winds,and coastal winds caused storm surges,aggravating disasters;Unscientific human activities occupying the flood channel were also one of the reasons for the expansion of the disaster.
作者
胡会芳
景华
魏军
张素云
李姣
HU Hui-fang;JING Hua;WEI Jun;ZHANG Su-yun;LI Jiao(Hebei Meteorological Disaster Prevention Center,Shijiazhuang 050021,China;Key Laboratory of Meteorology and Ecological Environment of Hebei Province,Shijiazhuang 050021,China)
出处
《湖北农业科学》
2020年第6期78-83,95,共7页
Hubei Agricultural Sciences
基金
2018年河北省气象局科研开发项目(18KY07)。
