东源站雷暴天气近地面风对放球的影响

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。

Study on the impact of Near - Surface wind of rainstorm on ball operation in Dongyuan weather station

Heyuan is a high incidence area of lightning disasters. The annual average Thunderstorm Day in the city is 81 days, and the dense thunderstorm weather poses a great threat to the high altitude detection. In order to Thunderstorm Weather Radar successfully tracking target, the Dongyuan sounding station (2007-2012), the observation period (07, 19) thunderstorm weather transit ground high altitude wind field data collation, statistics, calculation and analysis, the use of wind rose map production software, draw near ground layer in radar elevation (lobe + 6 degrees) change of azimuth frequency diagram. The results are well used in the test and routine detection, and it is of great significance and necessity for taking all the first hand detection data.