沙漠与绿洲气象2025，Vol.19Issue(6)：106-113,8.DOI:10.12057/j.issn.2097-6801.2405.06001
鲁西致灾冰雹时空特征及移动路径研究
Spatiotemporal Characteristics and Movement Tracks of Disastrous Hail in Western Shandong
摘要
Abstract
Based on hail observation data in western Shandong from 1978 to 2020,this study analyzed the spatiotemporal characteristics of hail events and the primary influencing weather system.The movement tracks of hail clouds were studied using the K-means clustering algorithm.The results show that:(1)Hail events in western Shandong exhibit distinct spatiotemporal characteristics.The number of hail days decreased from 2001 to 2020 compared to the period from 1978 to 2000.Spatially,hail occurs more frequently in the northern regions and less frequent in the southern areas.(2)Hail intrusion path can be classified into five categories:northern,northwestern,western,southwestern,and local.The northern path has the highest frequency,while the southwestern path is the least.The western path has the longest average duration,whereas the southwestern path has the shortest.(3)Five synoptic-scale circulation patterns are associated with hail formation:low vortex,low trough,transverse trough,northwestly flow,and the edge of the subtropical high,and low vortex type is the most dominant.关键词
冰雹/时空特征/移动路径/雹云聚类分析Key words
hail/spatiotemporal characteristics/movement tracks/hail cloud cluster analysis分类
天文与地球科学引用本文复制引用
吕博,龚佃利,吕丽,刘奇奇,王小亚,刘学川..鲁西致灾冰雹时空特征及移动路径研究[J].沙漠与绿洲气象,2025,19(6):106-113,8.基金项目
国家自然科学基金项目(42305002) （42305002）
中国气象局创新发展专项(CXFZ2024J030) （CXFZ2024J030）
山东省气象局科研项目(2024sdcxtd08) （2024sdcxtd08）
