摘要
对1995年8月5日发生在陕西中部一次槽前强对流风暴过程进行了诊断分析,结果表明:此次影响500 hPa槽前强对流风暴发生的重要条件之一不是中层干空气(干暖盖),而是低层有干空气侵入雷暴区。在中层水汽条件比较好的情况下,低层水汽通量由大变小是暴雨天气向强对流风暴天气转化的主要因素。
The diagnostic analysis of severe convective storm ahead of trough line happened in middle of Shaanxi province on 5 August 1995 has been done. The result shows that one of main reasons for the severe storm was not the dry air at the middle level（dry and warm lids）, but the dry air at the lower level which invaded thunderstorm area. Under condition of preferable water vapor at middle level, the change of vapor flux from high to low was primary cause of the transition from rainstorm to severe convective storm.
出处
《高原气象》
CSCD
北大核心
2006年第4期687-695,共9页
Plateau Meteorology
关键词
强对流风暴
低层干空气
Severe convective storm
Low level dry air
