基于分钟数据的济南局地短时强降水演变特征  

Evolution characteristics of local short time heavy rainfall in Jinan based on minute data

作　　者：郝悦涵 李超[2] Hao Yuehan;Li Chao(Jinan High Technology Industrial Development zone Meteorlogical Burean,Jinan 250102;Chengdu University of Information Technology,Chengdu 610225)

机构地区：[1]济南高新技术产业开发区气象局,济南250102 [2]成都信息工程大学,成都610225

出　　处：《气象水文海洋仪器》2024年第1期96-98,103,共4页Meteorological,Hydrological and Marine Instruments

摘　　要：文章利用济南市2012-2020年123个地面观测站的逐分钟降水数据,采用个例统计方法分析了短时强降水过程的演变特征。统计得出济南市共发生113次局地短时强降水,降水日变化特征明显,降水量空间分布不均,短时强降水演变过程具有非对称性。研究结果可为短时强降水预警预报工作提供参考。Based on the minute by minute precipitation data of 123 ground observation stations in Jinan from 2012 to 2020,the evolution characteristics of short term heavy precipitation process were analyzed by individual case statistical method.Statistics show that there were 113 local short term heavy rainfalls in Jinan,and the diurnal variation of precipitation is obvious.The spatial distribution of precipitation is uneven,and the evolution process of short term heavy precipitation is asymmetric.The research results can provide reference for the early warning and forecasting of short term heavy rainfall.

关 键 词：短时强降水 演变特征 峰值特征 非对称性特征 局地性 

分 类 号：P49[天文地球—大气科学及气象学]