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一、引言2002年5月10日下午北京出现了全市范围内的对流性天气,其中朝阳、通州、延庆出现了冰雹天气,通州、古北口、汤河口、佛爷顶出现了雷雨大风,风速最大是汤河口,达到24m/s,密云降雨量为29.8mm,通州降雨量为20.0mm。首都机场飞行管制区北扇区从当日下午06:00UTC开始出现积雨云(CB),航路飞行的飞机开始绕飞,0927 UTC—1013 UTC首都机场出现雷雨天气并伴有短时偏东风,最大1000UTC为10006G11mps(即为风向100度,风速6米/秒,G表示阵风,其后数字为阵风风速,下同),降水量达19.4mm。这是2002年度北京地区出现的第一次全市范围雷
I. INTRODUCTION Beijing convened a citywide convective weather on the afternoon of May 10, 2002. Among them, hail weather occurred in Chaoyang, Tongzhou and Yanqing. Tongzhou, Gubeikou, Tanghekou and Foye appeared thunderstorms and the maximum wind speed was Tanghe estuary, reaching 24m / s, Miyun rainfall of 29.8mm, Tongzhou rainfall of 20.0mm. The northern sector of the flight control zone of the Capital Airport started to show a cumulonimbus cloud (CB) at 06:00 UTC on the same day. Airways flying over the aircraft began to fly around. 0927 UTC-1013 UTC Thunderstorm at the Capital Airport accompanied by short-term easterlies, 1000UTC 10006G11mps (that is, the wind direction 100 degrees, the wind speed of 6 m / s, G said gusts, followed by figures for the gust wind speed, the same below), the precipitation of 19.4mm. This is the first citywide mine that occurred in Beijing in 2002