气候变化领域集成服务门户(CCPortal): Amplified or exaggerated changes in perceived temperature extremes under global warming

CCPortal

DOI	10.1007/s00382-019-04994-9
	Amplified or exaggerated changes in perceived temperature extremes under global warming
	Wang S.; Zhu J.
发表日期	2020
ISSN	0930-7575
起始页码	117
结束页码	127
卷号	54 期号:2020-01-02
英文摘要	The perceived temperature has been changing rapidly under global warming, and its related extremes have significant impacts on labor productivity and human health. Although numerous thermal indices have been developed to quantify the perceived temperature, impact assessments have not been conducted comprehensively. The lack of exploring the nonlinearity and linearity inherent in thermal indices will lead to biased conclusions. We conduct a comprehensive investigation of 161 indices to create an ensemble of selected thermal indices that represent the linear and nonlinear relationships of climatic conditions and quantify the changes in the perceived temperature and related extremes. Here we find that the increase in the mean perceived temperature can be strongly exaggerated by using nonlinear indices or linear indices that only consider the combined effect of high temperature and humidity. Wind speed incorporated into the schemes of linear indices can largely offset the increase in the perceived temperature induced by the high relative humidity. These two divergent changes can be further enhanced in future exposure to heat stress. Furthermore, our findings reveal an amplification of heatwave durations induced by the combined effects of multiple variables for all thermal indices. Such an amplification leads to a cascade of relatively short-duration heatwaves evolving into super long-lasting heatwaves which are particularly pronounced over low-latitude areas. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	Climate change; Environmental health; Perceived temperature extremes; RCPs
语种	英语
scopus关键词	extreme event; global warming; heat shock; heat wave; high temperature; labor productivity; relative humidity; temperature effect
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/145778
作者单位	Department of Land Surveying and Geo-Informatics, The Hong Kong Polytechnic University, Hong Kong; The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, China
推荐引用方式 GB/T 7714	Wang S.,Zhu J.. Amplified or exaggerated changes in perceived temperature extremes under global warming[J],2020,54(2020-01-02).
APA	Wang S.,&Zhu J..(2020).Amplified or exaggerated changes in perceived temperature extremes under global warming.Climate Dynamics,54(2020-01-02).
MLA	Wang S.,et al."Amplified or exaggerated changes in perceived temperature extremes under global warming".Climate Dynamics 54.2020-01-02(2020).