2022年1月16-18日攀枝花一次强降温天气过程分析  

Analysis of a Strong Cooling Weather Process in Panzhihua from January 16 to 18,2022

作　　者：肖昀何 廖伟 XIAO Yunhe(Panzhihua Meteorological Bureau,Panzhihua,Sichuan 617000)

机构地区：[1]攀枝花市气象局,四川攀枝花617000

出　　处：《农业灾害研究》2022年第9期97-99,共3页Journal of Agricultural Catastrophology

摘　　要：利用自动气象站观测资料、NCEP再分析资料、卫星云图资料对2022年1月16—18日攀枝花一次强降温天气过程进行诊断分析。结果表明:南支槽与低空切变及地面弱冷锋西进是此次降温降雨过程的主要影响系统;过程前期的凉山州和云贵交界处已出现较为明显的降温,在系统过境、偏北风的引导下促使弱冷气入侵也为此次降温降雨过程提供了有利条件;2个降雨时段持续时间较长,前期温度下降明显,后期青藏高原冷空气南下补充。Used the observation data of automatic weather station,NCEP reanalysis data and satellite cloud image data to diagnosed and analyzed a strong cooling weather process in Panzhihua from January 16 to 18,2022.The results showed that the South Branch trough,low-level shear and the westward advance of the weak cold front on the ground were the main influence systems of this cooling and rainfall process;In the early stage of the process,there had been a relatively obvious cooling at the junction of Liangshan Prefecture and Yunnan Guizhou.Under the guidance of the system transit,the northerly wind promotes the invasion of weak cold air,which also provided favorable conditions for the cooling and rainfall process;The two rainfall periods lasted for a long time,the temperature decreased significantly in the early stage,and the cold air on the Qinghai Tibet Plateau was replenished southward in the late stage.

关 键 词：降温 降雨 环流 攀枝花 

分 类 号：P458.122[天文地球—大气科学及气象学]