梅县区短时强降水的统计特征分析  

Analysis on Statistical Characteristics of Short-Term Heavy Precipitation in Meixian District

作　　者：林晓鸣 张俊权 LIN Xiaoming;ZHANG Junquan(Meixian Bureau of Meteorological,Guangdong Province,Meizhou 514700,China)

机构地区：[1]梅州市梅县区气象局,广东梅州514700

出　　处：《广东水利水电》2020年第9期18-21,共4页Guangdong Water Resources and Hydropower

摘　　要：通过梅县国家站分钟数据及12个区域自动站60 min和120 min短时强降水资料,将数据进行时间上和地理位置上整理,通过时间序列及站点资料分析,得出梅县短时强降水统计特征。研究表明,梅县短时强降水主要发生在降水过程的前30 min。区域自动站的短时强降水数据显示,梅县短时强降水呈现明显的月际变化及日变化,降水量与短时强降水发生的强度和次数密切相关。短时强降水发生的强度和次数同时又受到地形的影响,处在不同地形的区域自动站的短时强降水特征存在明显差异。This paper uses the minute data of Meixian National Station and the 60-and 120-minute short-duration heavy precipitation data of 12 regional automatic stations,and arranges the data in time and geographical position.Through time series and station data analysis,the statistics of short-duration heavy precipitation in Meixian are obtained.Studies have shown that short-duration heavy rainfall in Meixian mainly occurs in the first 30 minutes of the precipitation process.The short-duration heavy precipitation data from the regional automatic station shows that the short-duration heavy precipitation in Meixian shows obvious inter-monthly and daily changes,and the amount of precipitation is closely related to the intensity and frequency of short-duration heavy precipitation.The intensity and frequency of the occurrence of short-duration heavy rainfall are also affected by the topography.There are obvious differences in the characteristics of the short-duration heavy rainfall of the regional automatic stations in different terrains.

关 键 词：短历时强降水 分布特征 梅县区 

分 类 号：P426.6[天文地球—大气科学及气象学]