广东一次罕见冰粒伴雨雪过程和云结构分析

A rare ice particle accompanied by rain and snow in Guangdong and cloud structure analysis

利用探空资料和MODIS卫星数据,对2016年1月23-24日广东尤其是广州白云机场一次罕见的冰粒伴雨雪天气进行其垂直大气环境特征和云结构分析。结果表明,广东省处于高湿区,白云机场在暖气团控制向冷气团控制的转换过程中产生冰粒,冰粒天气主要以融化机制为主。白云机场上空的云类型变化为雨层云-雨层云混合积雨云-抬高的雨层云,广东省从北往南依次出现雨层云混合积雨云,伴随着降雪冰粒天气。

Using radiosonde data and MODIS satellite data,this paper analyzed the vertical atmospheric environment characteristics and cloud structure of a rare ice particle with rain and snow weather in Guangdong,especially Guangzhou Baiyun Airport from January 23 to 24,2016.The results show that Guangdong Province is located in a humid area,the ice particles produced during the transition from warm air mass control to cold air mass control at Baiyun Airport.The main mechanism of ice particle weather is melting.The cloud types over Baiyun Airport changed into rain layer cloud,mixed cumulonimbus cloud and raised rain layer cloud.From north to south in Guangdong Province,there were mixed cumulonimbus clouds with snowfall and ice particles.