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DOI	10.1088/1748-9326/ac0745
	Changes in regional wet heatwave in Eurasia during summer (1979-2017)
	Yu, Shuang; Tett, Simon F. B.; Freychet, Nicolas; Yan, Zhongwei
通讯作者	Tett, SFB (corresponding author), Univ Edinburgh, Sch Geosci, Edinburgh, Midlothian, Scotland.
来源期刊	ENVIRONMENTAL RESEARCH LETTERS
ISSN	1748-9326
出版年	2021
卷号	16 期号:6
英文摘要	Wet heatwaves can have more impact on human health than hot dry heatwaves. However, changes in these have received little scientific attention. Using the ECMWF Reanalysis v5 reanalysis dataset, wet-bulb temperatures (T (w)) were used to investigate the spatial-temporal variation of wet heatwaves in Eurasia for 1979-2017. Wet heatwaves were defined as three day or longer periods when T (w) was above the 90th percentile of the summer distribution and characterized by amplitude, duration and frequency. Maximum values of amplitude, close to 31 degrees C, occur in the Indus-Ganges plain, the lower Yangtze valley, and the coasts of the Persian Gulf and Red Sea. Significant positive trends in the frequency and amplitude of wet heatwaves have occurred over most of Eurasia though with regional variations. Changes in heatwave amplitude (HWA) are largely driven by changes in summer mean T (w). For Eurasia as a whole, increases in temperature contribute more than six times the impact of changes in relative humidity (RH) to changes in T (w) HWA. Changes in T (w) have a strong dependence on climatological RH with an increase in RH of 1% causing a T (w) increase of 0.2 degrees C in arid regions, and only increasing T (w) by 0.1 degrees C in humid regions. During T (w) heatwaves in Europe, parts of Tibet, India, East Asia and parts of the Arabian Peninsula both temperature and humidity contribute to the increase in T (w), with temperature the dominant driver. During wet heatwaves in part of Russia, changes in humidity are weak and the increase in T (w) is mainly caused by an increase in temperature. In the Mediterranean and Central Asia, RH has fallen reducing the increase in T (w) from general warming.
英文关键词	climate extreme heatwave wet-bulb temperature Eurasia geographical pattern
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000662664100001
WOS关键词	CLIMATE-CHANGE ; GEOGRAPHICAL PATTERNS ; TEMPERATURE EXTREMES ; RELATIVE-HUMIDITY ; CHINA ; WAVES ; TRENDS ; IMPACT ; VARIABILITY ; SULTRINESS
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
来源机构	中国科学院大气物理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350155
作者单位	[Yu, Shuang; Yan, Zhongwei] Chinese Acad Sci, Inst Atmospher Phys, Key Lab Reg Climate Environm East Asia, Beijing 100029, Peoples R China; [Yu, Shuang; Yan, Zhongwei] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Yu, Shuang; Tett, Simon F. B.; Freychet, Nicolas] Univ Edinburgh, Sch Geosci, Edinburgh, Midlothian, Scotland
推荐引用方式 GB/T 7714	Yu, Shuang,Tett, Simon F. B.,Freychet, Nicolas,et al. Changes in regional wet heatwave in Eurasia during summer (1979-2017)[J]. 中国科学院大气物理研究所,2021,16(6).
APA	Yu, Shuang,Tett, Simon F. B.,Freychet, Nicolas,&Yan, Zhongwei.(2021).Changes in regional wet heatwave in Eurasia during summer (1979-2017).ENVIRONMENTAL RESEARCH LETTERS,16(6).
MLA	Yu, Shuang,et al."Changes in regional wet heatwave in Eurasia during summer (1979-2017)".ENVIRONMENTAL RESEARCH LETTERS 16.6(2021).