热带气象学报2025，Vol.41Issue(2)：236-244,9.DOI:10.16032/j.issn.1004-4965.2025.022
1980年以来京津冀地区群发性高温过程的变化特征
Characteristics of Cluster High-Temperature Processes in the Beijing-Tianjin-Hebei Region Since 1980
摘要
Abstract
Based on the daily maximum temperature data from 174 meteorological stations in the Beijing-Tianjin-Hebei region from 1980 to 2023,the present study analyzed the spatial and temporal variations of high-temperature processes.The term cluster high-temperature process(CHTP)was also introduced to further understand these extreme weather events.The results revealed that the average number of high-temperature days per year in the region stood at 10.8,exhibiting a notable upward trend with a climate tendency rate of 1.9 days per decade.Temporally,the pattern of high-temperature days followed a decade-long cycle of"decrease-increase-decrease-increase",while spatially,the southern regions experienced more frequent and intense heatwaves compared to the northern ones.During the period from 1980 to 2023,a total of 149 CHTPs were recorded in the Beijing-Tianjin-Hebei region,predominantly occurring between May and August.The frequency of these events peaked in mid-June,exhibiting a unimodal distribution.Notably,the average duration,maximum extent of impact,and overall intensity of CHTPs have shown a significant increase over the years,with a particularly sharp rise in frequency and average intensity since 2010.In the past 44 years,seven of the ten strongest CHTPs appeared in the 21st century,and four occurred after 2009;the extreme daily maximum temperature mostly appeared in Shijiazhuang.Spatially,the majority of CHTP occurrences were centered in the central and southern parts of Hebei Province,with Shijiazhuang's southeastern region and Xingtai's northern area identified as high-incidence centers.Over the decades,these high-incidence areas have gradually expanded northward and eastward.Central and southern Beijing,southern Chengde,Tianjin,most of Tangshan,and western Qinhuangdao have witnessed an exponential rise in CHTP frequency,exhibiting a more pronounced increase compared to other regions.关键词
高温/群发性高温过程/持续性/气候特征/京津冀Key words
high temperature/cluster high-temperature process/persistent high temperature/climatic characteristics/Beijing-Tianjin-Hebei region分类
大气科学引用本文复制引用
许启慧,邵丽芳,高旭旭,李晓帆..1980年以来京津冀地区群发性高温过程的变化特征[J].热带气象学报,2025,41(2):236-244,9.基金项目
中国气象局创新发展专项(CXFZ2021Z034) （CXFZ2021Z034）
河北省科学技术厅科技冬奥专项(21475401D)共同资助 （21475401D）
