人民长江2025，Vol.56Issue(3)：95-105,11.DOI:10.16232/j.cnki.1001-4179.2025.03.013
长江流域复合极端气候事件指标及识别方法综述
Progress of research on compound extreme climate events'indices and identification methods in Changjiang River Basin
摘要
Abstract
To gain a comprehensive view on the characteristics and changing trend of compound extreme climate events in the Changjiang River Basin,we systematically reviewed the progress of researches on definitions,classifications,indices,identification methods and historical results of compound events in the Changjiang River Basin based on a bibliometric analysis.The main con-clusions are:① Compound events can be defined as two or more events occurring simultaneously or successively,which may am-plify the impact,or even lead to extreme consequences.Based on spatiotemporal combinations,4 types of compound extreme cli-mate events can be categorized in the Changjiang River Basin:same location-same time(e.g.compound dry and hot events,ex-tensive cold-precipitation-freezing events),same location-different time(e.g.drought-flood abrupt alternations,flood-heatwave abrupt alternations),different location-same time,different location-different time.The former two types encompass relative richer research,and the last two types have been researched insufficiently.②The empirical way to identify a compound e-vent is applying a certain index and a peak-over-threshold(POT)approach in both China and abroad;around 26 indices and more than 30 identification methods are frequently applied in the scientific literatures.③ Changjiang River Basin is a hotspot for compound events.Since the 21st century,flood-heatwave abruption alternation events have been increasing the fastest in frequen-cy,followed by compound dry and hot events and drought-flood abrupt alternation events.The extensive cold-precipitation-freezing event does not show an evident increase but gets more extreme.④ Future research and business efforts should focus on improving the monitoring and assessment system for compound events in the Changjiang River Basin,exploring the interactions and relationships among various factors,and understanding the underlying weather systems,driving factors,and physical mecha-nisms to enhance predictive capabilities.Meanwhile,it is also suggested to reinforce the interdisciplinary research and impact as-sessment of compound events on sensitive sectors(e.g.water resources,electricity).关键词
复合极端气候事件/高温干旱/低温雨雪冰冻/旱涝急转/洪水热浪/长江流域Key words
compound extreme climate events/high temperature and drought/extensive cold-precipitation-freezing/drought-flood abrupt alternation/flood-heatwave abrupt alternation/Changjiang River Basin分类
大气科学引用本文复制引用
冯扬,秦鹏程,胡一阳,牛自耕,夏智宏..长江流域复合极端气候事件指标及识别方法综述[J].人民长江,2025,56(3):95-105,11.基金项目
中国气象局创新发展专项项目(CXFZ2023J051) （CXFZ2023J051）
湖北省自然科学基金重点项目(2023AFD098) （2023AFD098）
