山西运城一次晚霜冻害特征分析

Analysis on the Characteristics of a Late frost Damage in Yuncheng,Shanxi

本文利用2020年4月23-24日Micaps常规观测资料、数值预报产品以及自动站观测资料对运城市出现严重的强霜冻天气过程进行探讨分析,由于每次强降温发生的环流背景、影响系统及冷空气的强度、发展、移动路径不同,所以造成的降温幅度和影响也不同。因此,有必要对此次强霜冻的环流背景、影响系统、冷空气活动路径等进行诊断分析,以期为今后的霜冻天气预报提供科学依据,对提高预报能力并减轻灾害造成的损失无疑是有意义的。

This article uses Micaps conventional observation data,numerical forecast products and automatic station observation data from April 23-24,2020 to discuss and analyze the severe frost weather process in Yuncheng City.Due to the circulation background and influence of each strong cooling The intensity,development,and movement path of the system and the cold air are different,so the cooling range and impact caused are also different.Therefore,it is necessary to diagnose and analyze the circulation background,influence system,and cold air activity path of this strong frost,in order to provide a scientific basis for future frost weather forecasts,which is undoubtedly meaningful for improving forecasting capabilities and reducing losses caused by disasters..