摘要
利用甘肃省合作市气象局1971—2020年的逐日降水资料及区域站降水资料,共筛选出了13次暴雨过程,出现23站次。统计分析合作市暴雨时空分布特征和发生发展规律,结果表明:合作市暴雨发生的概率比较小,一般出现在6月中旬—9月上旬,具有明显的午后—前半夜型。近10年暴雨出现的次数明显增多,造成的经济损失也增加显著。分析总结了合作市暴雨出现的主要环流类型大致分为4种类型:副高边缘型、低槽型、低涡型和副高内部型。以副高边缘型为主。
Based on the daily precipitation data of the station and the regional precipitation data from 1971 to 2020 of the Meteorological Bureau of Hezuo City,Gansu Province,a total of 13 rainstorm processes were screened,with 23 stations.The statistical analysis of the spatiotemporal distribution characteristics and occurrence and development rules of heavy rain in Hezuo City shows that the probability of heavy rain in Hezuo City was relatively small,generally occurring in the middle of June to the first ten days of September,with an obvious afternoon-early midnight pattern.In the past 10 years,the number of rainstorms has increased significantly,and the economic losses have also increased significantly.The main circulation types of heavy rain in Hezuo City are roughly divided into four types:subtropical high edge type,low trough type,low vortex type and subtropical high internal type.It is dominated by the marginal type of subtropical high.
作者
黄莹霞
蒲致娟
康学红
刘桂平
李琳
Huang Ying-xia(Hezuo Meteorological Bureau,Gansu Province,Hezuo,Gansu 747000)
出处
《农业灾害研究》
2023年第4期119-121,共3页
Journal of Agricultural Catastrophology
关键词
暴雨
分布特征
灾情
影响系统
Rainstorm
Distribution characteristics
Disaster situation
Impact system
