摘要
对2019年8月3—6日低涡辐合引起的红河州强降水过程进行分析。结果表明,此次低涡辐合对红河州的影响是自东向西的,红河州南部水汽充沛,降水条件更好,特别是西南部,一定的动力条件触动,加上持续的水汽,容易产生强降水;强降水的落区与低涡辐合位置、周围物理量的分布以及红河州当地的能量条件有关。
The heavy rainfall process in Honghe Prefecture caused by the convergence of low vortex on August 3-6,2019 was analyzed.The results showed that the impact of the convergence of the vortex on Honghe Prefecture was from east to west.The southern part of Honghe Prefecture had abundant water vapor and better precipitation conditions,especially in the southwest.With certain dynamic conditions and continuous precipitation,it was easy to produce heavy precipitation.The falling area of heavy rainfall was related to the convergence position of the vortex,the distribution of the surrounding physical quantity and the local energy condition of Honghe Prefecture.
作者
叶文群
刘佳
YE Wen-qun(Honghe Prefecture Meteorological Station,Mengzi,Yunnan 661100)
出处
《农业灾害研究》
2020年第3期137-138,140,共3页
Journal of Agricultural Catastrophology
关键词
强降水
垂直速度场
散度场
低涡辐合
Heavy rainfall
Vertical velocity field
Divergence field
Vortex convergence