气象与环境学报2026，Vol.42Issue(3)：13-21,9.DOI:10.3969/j.issn.1673-503X.2026.03.002
铁岭市东北冷涡短时强降水的时空特征及预报物理量分析
Spatio-temporal characteristics and analysis of forecast physical quantities of short-duration heavy rain in Tieling caused by Northeast Cold Vortex
摘要
Abstract
In order to finely study the spatio-temporal distribution characteristics of short-duration heavy rain in Tieling and improve the potential forecasting ability of short-duration heavy rain,hourly precipitation data from na-tional meteorological stations and regional automatic stations,as well as ERA5 reanalysis data were used to com-pare the spatio-temporal distribution characteristics of northeast cold vortex and non-northeast cold vortex short-du-ration heavy rain and analyze the physical quantities of predictable short-duration heavy rain in cold vortex.The re-sults show that cold vortex short-duration heavy rain(CV_SDHR)is mainly concentrated in the central plains.Non cold vortex short-duration heavy rain(non-CV_SDHR)is mainly concentrated in the western plains,eastern and southern mountainous areas.The spatial distributions of two types of short-duration heavy rain stations show significant differences in each month.The main concentration areas of CV_SDHR move from north to south from June to September.Two types of short-duration heavy rain stations show slow a upward trend.CV_SDHR reaches its peak in July and non-CV_SDHR reaches its peak in August.CV_SDHR mainly occurs from the afternoon to the first half of the night.There are differences in the distribution of physical quantities between CV_SDHR and non-CV_SDHR in each month.The specific humidity at 925,850,and 700 hPa,the total precipitable water,and the pseudo-equivalent temperature difference between 850 hPa and 500 hPa are higher in July,and second in August.Compare the differences in the 25th percentile of physical quantities between CV_SDHR and non-CV_SDHR in each month,and obtain the monthly physical quantity thresholds for CV_SDHR in Tieling.关键词
东北冷涡/短时强降水/物理量/潜势预报Key words
Northeast Cold Vortex/Short-duration heavy rain/Physical quantity/Potential forecast分类
天文与地球科学引用本文复制引用
李晓婷,赵春雨,王丽,王禄禄,姜新,张明哲..铁岭市东北冷涡短时强降水的时空特征及预报物理量分析[J].气象与环境学报,2026,42(3):13-21,9.基金项目
辽宁省科技厅重点研发项目(2024JH2/102500094)和辽宁省气象局指导计划项目(ZD202634)共同资助. （2024JH2/102500094）
