摘要
河源是雷电灾害高发区,全市年平均云地闪雷暴日为81 d,密集的雷暴天气对高空探测构成极大威胁。为了在雷暴天气雷达顺利追踪目标,该文对东源探空站(2007—2012年),观测时段(07时、19时)雷暴天气过境时的近地面层高空风场资料进行整理、统计、计算和分析,运用风玫瑰图制作软件,绘制出近地面层雷达仰角、方位角的变化频率图。遇到雷暴天气,参照类似天气情况下的雷达仰角、方位角变化频率图,每次高空观测雷达对目标进行追踪,其结果在测试及业务探测中使用良好,对取准取全第一手探测资料有着较大帮助。
Heyuan is one of the areas where lightning disaster incidents occur most frequently. The average number of annual cloud - to - ground lightning days are 81 days. Dense thunderstorms poses a great risk to the up-per air detection. To radar - track targets successfully in the thunderstorm, the data about near - surface upper air wind field when the thunderstorm passes were organized, computed, calculated and analyzed by using Wind Rose Mapping Software to sketch near - surface radar elevation angle and variation frequency chart of azimuth, Which can be regarded as reference when a thunderstorm occurs. The feedback in test or practical work are good and thus the software work as a great aid to obtain the first-hand detecting data.
作者
李茂
张凤梅
秦荣显
赖晓华
LI Mao;ZHANG Fengmei;QIN Rongxian;LAI Xiaohua(Lianping Meteorological Bureau of Guangdong,Lianping 517000,China;Xinjiang Climate Center of Air Traffic Management Bureau of Civil Aviation,Xinjiang Uygur Autonomous Region,Xinjiang 830000,China)
出处
《中低纬山地气象》
2018年第5期71-79,共9页
Mid-low Latitude Mountain Meteorology
关键词
雷暴过境
丢球
应急处理
扇扫范围
thunderstoml passage
lost ball
emergency handling
sector scan
