【摘要】 采用１９８０～１９８８年夏季北京站２０ｈ探空和北京地区未来２４ｈ对流天气资料，并采用对比度分析方法，研究了该地区夏季对流性天气发生的大尺度环境条件，普通雷暴与局地强风暴发生环境条件的差异，并将结果与中纬度地区现有概念作了比较更多还原

【Abstract】 By using the data of Beijing′s sounding and convective weather in Beijing area in summer of 1980-1989,the environmental conditions of the genesis of the convective weather and the differences between air-mass thunderstorm and severe local storm in the environmental conditions of their genesis are identified,and results obtained are compared with existing views on these conditions.更多还原