摘要
利用常规天气实况资料,从天气尺度环流背景、中尺度系统、冷中心的移动等方面,对2014年4月下旬出现在甘肃地区的一场寒潮天气过程进行了分析。结果表明:此次寒潮为典型的低槽东移型;甘肃地区出现强寒潮的主要原因是冷空气不断堆积;冷空气的不断补充与分裂再合并;前期增温与降水。
Based on the conventional observational data,a strong cold wave event in late April 2014 in Gansu Province was systematically analyzed from synoptic scale circulation background, mesoscale system, cold high moves, etc. The results showed that this cold wave was of low trough eastward. The main reasons of this strong cold wave over Gansu were that steady accumulation of cold air, steady supplying, dividing and uniting of cold air, early warming and precipitation.
出处
《现代农业科技》
2016年第20期166-168,共3页
Modern Agricultural Science and Technology
关键词
寒潮
天气过程
中尺度系统
甘肃地区
cold wave
weather process
mesoscale system
Gansu area
