沙漠与绿洲气象2025，Vol.19Issue(4)：1-9,9.DOI:10.12057/j.issn.1002-0799.2405.09001
基于国家站和区域站的新疆夏半年降水及极端性特征分析
Analysis of Precipitation and Its Extreme Characteristics in Xinjiang during the Summer Half-year Based on National and Regional Meteorological Stations
摘要
Abstract
Precipitation data from May to September 2019-2023,collected from national meteorological stations(national stations)and regional automatic meteorological stations(regional stations)in Xinjiang,were used to compare and evaluate the effectiveness of the two types of stations in describing precipitation characteristics in the region.The results show that:The correlation between precipitation at national and regional stations is significant.During the summer half-year,the average precipitation of regional and national stations is 103.2 and 89.0 mm,respectively,and the maximum precipitation is 451.2 and 395.7 mm,respectively.The average monthly maximum precipitation of regional and national stations is 67.4 and 56.3 mm,respectively,with peak values reaching 335.5 and 167.6 mm,respectively.The average precipitation at regional stations tends to be higher than that at national stations,and the skewness of the precipitation distribution is more pronounced at regional stations.The precipitation at regional stations is distributed in bands along the mountain system,whereas national stations are more sparsely distributed in mountainous areas.The precipitation concentration intervals are consistent between the two types of stations,however,national stations are less effective at capturing the discrete and localized nature of precipitation,particularly in the spatial distribution of extreme precipitation events of less than 25 mm and more than 100 mm.The spatial distribution of extreme precipitation events in Xinjiang is closely related to the topography,with national stations higher than regional stations in the basin and the opposite in the mountains.The difference in precipitation levels between the two types of stations is significant under different terrain conditions,with regional stations having an advantage in complex terrain areas with large elevation differences.Regional station data can monitor more frequent and intense extreme precipitation events,offering more refined real-time information for forecast prediction and disaster prevention and mitigation services.关键词
区域气象站/夏半年降水/极端降水/对比分析Key words
regional meteorological stations/summer half-year precipitation/extreme precipitation/comparative分类
天文与地球科学引用本文复制引用
刘艳,郑育琳,刘精,李元鹏,陈颖..基于国家站和区域站的新疆夏半年降水及极端性特征分析[J].沙漠与绿洲气象,2025,19(4):1-9,9.基金项目
中央级公益性科研院所基本科研业务费专项资金项目(IDM2020008) （IDM2020008）
自治区重点研发计划项目课题(2023B02044-1) （2023B02044-1）
中国气象局复盘总结专项(FPZJ2024-155) （FPZJ2024-155）
气候基金(QHJJ-YW2024001) （QHJJ-YW2024001）
