Understanding and Attribution of Extreme Heat and Drought Events in 2022: Current Situation and Future Challenges  

作　　者：Lixia ZHANG Xiaojing YU Tianjun ZHOU Wenxia ZHANG Shuai HU Robin CLARK 

机构地区：[1]State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics(LASG),Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100029,China [2]China Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters,Nanjing University of Information Science and Technology,Nanjing 210044,China [3]Key Laboratory of Citie’s Mitigation and Adaptation to Climate Change in Shanghai,China Meteorological Administration,Shanghai 200030 [4]College of Geography and Remote Sensing Sciences,Xinjiang University,Urumqi 830046,China [5]Met Office Hadley Centre,Exeter,EX13PB,UK

出　　处：《Advances in Atmospheric Sciences》2023年第11期1941-1951,共11页大气科学进展（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No.42075037 and 42275033);the UK–China Research and Innovation Partnership Fund through the Met Office Climate Science for Service Partnership(CSSP)-China programme as part of the Newton Fund.

摘　　要：Extreme weather events and their consequential impacts have been a key feature of the climate in recent years in many parts of the world,with many partly attributed to ongoing global-scale warming.The past year,2022,has been no exception,with further records being broken.The year was marked by unprecedented heatwaves and droughts with highly unusual spatial extent,duration and intensity,with one measure indicating an aggregated and overall intensity of extreme heat events worldwide not seen since at least 1950.The extreme drought measured by surface soil moisture covered 47.3%of global land areas in 2022,which was the second most widespread year since 1980.Here,we examine notable events of the year in five major regions of the world:China’s Yangtze River region,western Europe,the western U.S.,the Horn of Africa and central South America.For each event,we review the potential roles of circulation,oceanic forcing(especially the“triple-dip”La Niña)and anthropogenic climate change,with an aim of understanding the extreme events in 2022 from a global perspective.This will serve as a reference for mechanism understanding,prediction and attribution of extreme events.

关 键 词：extreme event in 2022 HEATWAVE DROUGHT detection and attribution 

分 类 号：P426.616[天文地球—大气科学及气象学] P423