水利水电技术（中英文）2025，Vol.56Issue(3)：1-14,14.DOI:10.13928/j.cnki.wrahe.2025.03.001
闽江流域复合极端气候事件的识别与时空格局特征
Identification and spatiotemporal characteristics of compound extreme climate events in the Minjiang River Basin
摘要
Abstract
[Objective]With global warming,compound extreme climate events pose more significant adverse impacts on human development and ecological environments than single extreme climate events.[Methods]Based on daily average temperature and precipitation data from 29 meteorological stations in the Minjiang River Basin from 1980 to 2021,the percentile method(90th and 10th percentiles)was used to identify compound extreme climate events.The frequency,trend,and intensity of four types of compound extreme climate events(Warm-Dry,Warm-Wet,Cold-Dry,and Cold-Wet)in the Minjiang River Basin were analyzed.[Results]The result indicate that:1)Warm-Dry events dominate the compound extreme events in the Minjiang River Basin,with the highest annual average frequency of 76.15 days.Cold-Dry events follow,with an annual average frequency of 53.32 days.On a seasonal scale,Warm-Dry events have the highest frequency,each exceeding 15 days.Cold-Dry events are most frequent in autumn and winter,each also exceeding 15 days.The frequencies of Warm-Wet and Cold-Wet events are relatively low.2)Spatially,high-frequency areas of Warm-Wet and Warm-Dry events are located in the southern Jianxi Basin,eastern Futunxi and Shaxi Basins,and the eastern and northern middle-lower reaches of the Minjiang River Basin.Cold-Wet and Cold-Dry events mainly occur in the northern Jianxi Basin,western Futunxi and Shaxi Basins,and the southwestern middle-lower reaches of the Minjiang River Basin.3)Warm-Dry events show a significant increasing trend,while Cold-Dry events exhibit a significant decreasing trend.Among sub-basins,the Shaxi Basin shows the most significant increasing trend for Warm-Dry events,at 13.58 days per decade,while the Futunxi Basin shows the most significant decreasing trend for Cold-Dry events,at-7.49 days per decade.4)In terms of intensity,although Warm-Wet events have a lower frequency,they exhibit higher intensity,predominantly at strong and moderate levels,with more moderate-level days than strong-level days.Warm-Dry events also predominantly occur at strong and moderate levels,with more strong-level days than moderate-level days.[Conclusion]Overall,Warm-Dry events are the most prevalent in the Minjiang River Basin,with high intensity and an increasing trend.Cold-Dry events mainly occur in autumn and winter,with a decreasing trend.Under extreme precipitation impacts,Warm-Wet events exhibit high intensity but low frequency.关键词
极端气候/复合事件/频率/趋势/强度/闽江流域/气候变化/降水Key words
extreme climate/compound events/frequency/trend/intensity/Minjiang River Basin/climate change/precipitation分类
大气科学引用本文复制引用
孙雪,涂玉凤,孙劭,周翔,姜立智,郝晓博,江彩英,高路..闽江流域复合极端气候事件的识别与时空格局特征[J].水利水电技术（中英文）,2025,56(3):1-14,14.基金项目
国家自然科学基金项目"东南沿海山地丘陵区暖季暴雨时空异质性及其致洪效应"(42271030) （42271030）
福建省科技厅杰青项目"全球升温1.5℃～3℃情景下福建复合极端气候事件的致灾风险预估"(2022J06018) （2022J06018）
福建省"雏鹰计划"青年拔尖人才计划 （）
