摘要
为了做好雷电防护工作,减少雷击事件带来的人员伤亡,文章利用丰城2007—2021年雷击灾害调查资料、MICAPS天气资料、雷达拼图回波资料和其他资料,采用统计学、天气学、雷达气象学等原理和方法,对丰城15 a间发生的雷击事件进行分析,结果表明:1)丰城18次雷击事件出现时间主要在6—7月,08:00和14:00—18:00为高峰;2)雷击事件发生在500 hPa高空槽前和低层切变线南侧,850 hPa有西南急流,且地面有辐合线的天气背景下;3)雷击事件发生在回波短带或块状单体上,组合反射率回波强度在50~55 dBZ。研究结果为丰城雷电天气短临预报提供了分析依据。
In order to do a good job in lightning protection and reduce the casualties caused by lightning strikes,this paper analyzes the lightning strikes in Fengcheng in 15 years by using the survey data of lightning strikes in Fengcheng from the year of 2007 to 2021,MICAPS weather data,radar mosaic echo data and other data,and using the principles and methods of statistics,meteorology and radar meteorology.The results show that:1)the 18 lightning strikes in Fengcheng mainly occurred in June and July,and the peak is at 08:00 and 14:00-18:00.2) The lightning strike occurred in front of the 500 hPa high trough and on the south side of the lower shear line,and under the weather background of 850 hPa with southwest jet and convergence line on the ground.3)The lightning strike event occurs on the echo short band or block monomer,and the combined reflectivity echo intensity is 50~55 dBz.The research results provide an analytical basis for the short-term forecast of lightning weather in Fengcheng.
作者
饶云花
马中元
陈鲍发
陈荣鑫
程小娟
Rao Yunhua;Ma Zhongyuan;Chen Baofa;Chen Rongxin;Cheng Xiaojuan(Fengcheng Meteorological Bureau,Fengcheng 331100;Jiangxi Institute of Meteorological Sciences,Nanchang 330046;Jingdezhen Meteorological Bureau,Jingdezhen 333000)
出处
《气象水文海洋仪器》
2023年第3期12-14,19,共4页
Meteorological,Hydrological and Marine Instruments
基金
国家自然科学基金项目(41975001)
宜春市气象局自筹经费科研项目(JXYC2022ZC008)资助。
关键词
雷击事件
回波特征
预报
lightning strike
echo characteristics
forecast
